:root {
  color-scheme: light;
  --bg: #f6f8f5;
  --surface: #ffffff;
  --surface-soft: #eef3ef;
  --text: #10231d;
  --muted: #64736c;
  --line: #dfe6e1;
  --line-strong: #cbd6cf;
  --accent: #123d35;
  --accent-hover: #0b3029;
  --accent-soft: #e7f0eb;
  --signal: #c9e85b;
  --signal-soft: #f1f8d7;
  --danger: #9b3535;
  --danger-soft: #f4e5e4;
  --gold: #9d7417;
  --silver: #6f7c83;
  --bronze: #9a5938;
  --map-water: #dce8e3;
  --map-land: #f4f7f2;
  --map-coast: #bdcbc3;
  --radius: 16px;
  --control-radius: 12px;
  --shell: 1160px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
  --shadow: 0 18px 50px color-mix(in srgb, var(--accent) 8%, transparent);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0d1512;
    --surface: #141e1a;
    --surface-soft: #1b2822;
    --text: #eef4f0;
    --muted: #a1aea6;
    --line: #29372f;
    --line-strong: #3a4c42;
    --accent: #9bcfb3;
    --accent-hover: #b4ddc7;
    --accent-soft: #1c3529;
    --signal: #c9e85b;
    --signal-soft: #26351d;
    --danger: #e88989;
    --danger-soft: #3d2424;
    --gold: #d8ad4e;
    --silver: #aab5bb;
    --bronze: #cf8058;
    --map-water: #14211c;
    --map-land: #1e2c25;
    --map-coast: #3b5146;
  }
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.entity-link {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 3px;
}

.entity-link:hover { color: var(--accent); text-decoration: underline; }
.avatar.entity-link:hover { color: #f6faf7; text-decoration: none; }
.back-link { display: inline-flex; margin-bottom: 24px; color: var(--muted); font-size: 12px; font-weight: 700; text-decoration: none; }
.back-link::before { content: "←"; margin-right: 7px; }
.back-link:hover { color: var(--accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.shell {
  width: min(calc(100% - 40px), var(--shell));
  margin-inline: auto;
}

.narrow-shell { width: min(calc(100% - 40px), 680px); margin-inline: auto; }
.app-main { padding-bottom: 56px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 94%, transparent);
  backdrop-filter: blur(14px);
}

.site-header__inner {
  min-height: 64px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.025em;
  text-decoration: none;
  white-space: nowrap;
}

.brand strong { color: var(--accent); font-weight: 760; }

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  white-space: nowrap;
}

.desktop-nav a {
  position: relative;
  padding: 22px 0 20px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] { color: var(--text); }

.desktop-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--accent);
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}

.avatar {
  --avatar: var(--accent);
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--avatar);
  color: #f6faf7;
  font-size: 13px;
  font-weight: 750;
}

.avatar--small { width: 30px; height: 30px; font-size: 10px; }
.avatar--large { width: 72px; height: 72px; font-size: 22px; }

.page-shell { padding-top: 42px; }
.page-heading { max-width: 680px; margin-bottom: 32px; }
.page-heading--wide { max-width: 680px; }
.page-heading > .back-link { display: flex; width: fit-content; }
.page-heading .eyebrow { display: block; }

.page-heading h1,
.profile-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.page-heading > p:last-child {
  max-width: 58ch;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

/* Challenge selection */
.challenge-overview-intro { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: start; gap: 28px; }
.challenge-overview-intro > .button { margin-top: 26px; }
.challenge-overview-heading { margin-bottom: 38px; }
.challenge-overview-list { border-block: 1px solid var(--line-strong); }
.challenge-overview-item {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(260px, 0.75fr) auto;
  align-items: center;
  gap: 24px;
  padding: 28px 4px;
  border-bottom: 1px solid var(--line);
}
.challenge-overview-item:last-child { border-bottom: 0; }
.challenge-overview-item__status { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; }
.challenge-overview-item__status span { color: var(--muted); font-size: 10px; font-weight: 750; text-transform: uppercase; letter-spacing: 0.06em; }
.challenge-overview-item.is-joined .challenge-overview-item__status span { color: var(--accent); }
.challenge-overview-item__status small { color: var(--muted); font-size: 10px; }
.challenge-overview-item h2 { margin: 0; font-size: clamp(1.35rem, 2.4vw, 1.8rem); line-height: 1.1; letter-spacing: -0.035em; }
.challenge-overview-item__main > p { max-width: 56ch; margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.challenge-overview-item__facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.challenge-overview-item__facts strong, .challenge-overview-item__facts span { display: block; }
.challenge-overview-item__facts strong { font-size: 17px; letter-spacing: -0.025em; }
.challenge-overview-item__facts span { margin-top: 2px; color: var(--muted); font-size: 10px; }
.challenge-overview-item > .button, .challenge-overview-item > form { justify-self: end; }
.challenge-overview-item__progress { grid-column: 1 / 3; max-width: 700px; }
.challenge-overview-item__progress .progress-overview__meta { margin-bottom: 7px; font-size: 10px; }
.participation-note { display: flex; align-items: baseline; gap: 12px; margin-bottom: 22px; padding: 13px 16px; border-left: 3px solid var(--accent); background: var(--accent-soft); font-size: 12px; }
.participation-note span { color: var(--muted); }
.challenge-context-picker, .challenge-context-label { margin-bottom: 18px; padding: 13px 15px; border: 1px solid var(--line); border-radius: var(--control-radius); background: var(--surface-soft); }
.challenge-context-picker { display: flex; align-items: end; gap: 10px; }
.challenge-context-picker .field { flex: 1; gap: 4px; }
.challenge-context-picker--wide { max-width: 680px; }
.challenge-context-label span, .challenge-context-label strong { display: block; }
.challenge-context-label span { color: var(--muted); font-size: 10px; }
.challenge-context-label strong { margin-top: 2px; font-size: 13px; }

/* Challenge ownership */
.owner-create { margin-bottom: 30px; padding: 18px 22px 22px; }
.owner-create > summary { color: var(--text); font-size: 14px; }
.owner-create[open] > summary { color: var(--accent); }
.owner-create .compact-form { max-width: 760px; }
.owner-challenge-list { margin-bottom: 34px; border-block: 1px solid var(--line-strong); }
.owner-challenge-row { min-height: 98px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 24px; padding: 18px 4px; border-bottom: 1px solid var(--line); }
.owner-challenge-row:last-child { border-bottom: 0; }
.owner-challenge-row.is-selected { background: linear-gradient(90deg, var(--accent-soft), transparent 72%); }
.owner-challenge-row h2 { margin: 3px 0 0; font-size: 18px; letter-spacing: -0.025em; }
.owner-challenge-row p { margin: 3px 0 0; color: var(--muted); font-size: 11px; }
.owner-editor-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 20px; }

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--control-radius);
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
}

.button:active { transform: translateY(1px); }
.button--primary { background: var(--accent); color: #f5faf7; }
.button--primary:hover { background: var(--accent-hover); }

@media (prefers-color-scheme: dark) {
  .button--primary { color: #102117; }
}

.button--secondary { border-color: var(--line-strong); background: transparent; color: var(--text); }
.button--secondary:hover { background: var(--surface-soft); }
.button--danger { border-color: color-mix(in srgb, var(--danger) 50%, var(--line)); background: transparent; color: var(--danger); }
.button--danger:hover { background: var(--danger-soft); }
.button--wide { width: 100%; }
.button--small { min-height: 34px; padding: 7px 10px; font-size: 12px; }

.text-link,
.back-link {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  text-underline-offset: 4px;
}

.back-link { display: inline-block; margin-bottom: 20px; }
.notice-wrap { padding-top: 16px; }

.notice {
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  padding: 11px 13px;
  font-size: 13px;
  font-weight: 600;
}

.notice--success { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); background: var(--accent-soft); color: var(--accent); }
.notice--error { border-color: color-mix(in srgb, var(--danger) 45%, var(--line)); background: var(--danger-soft); color: var(--danger); }

.section-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.section-heading h2,
.profile-stats h2,
.admin-section h2 {
  margin: 0;
  font-size: 16px;
  letter-spacing: -0.02em;
}

.section-heading p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }

/* Dashboard */
.dashboard-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.dashboard-heading > div > span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.dashboard-heading h1 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.dashboard-heading p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }

.progress-overview {
  display: grid;
  grid-template-columns: auto minmax(160px, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 24px 0 30px;
}

.progress-overview__value { display: flex; align-items: baseline; gap: 8px; white-space: nowrap; }
.progress-overview__value strong { font-size: 30px; line-height: 1; letter-spacing: -0.04em; }
.progress-overview__value span { color: var(--muted); font-size: 13px; }

.progress {
  height: 5px;
  border-radius: 99px;
  background: var(--line);
  overflow: hidden;
}

.progress span { display: block; height: 100%; border-radius: inherit; background: var(--accent); }
.progress--team { margin: 0; }
.progress--thin { margin-block: 16px 14px; }

.progress-overview__meta { display: flex; align-items: center; gap: 20px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.progress-overview__meta strong { color: var(--text); }

.weekly-goal {
  display: grid;
  grid-template-columns: auto minmax(150px, 1fr) auto;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  background: var(--surface);
}
.weekly-goal > div:first-child { display: flex; align-items: baseline; gap: 8px; white-space: nowrap; }
.weekly-goal span { color: var(--muted); font-size: 11px; }
.weekly-goal strong { font-size: 13px; }
.weekly-goal > a { color: var(--accent); font-size: 12px; font-weight: 700; text-decoration: none; white-space: nowrap; }

.dashboard-core {
  display: grid;
  grid-template-columns: minmax(0, 1.75fr) minmax(250px, 0.6fr);
  gap: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.map-panel { min-width: 0; }

.route-map {
  position: relative;
  min-height: 400px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--map-water);
}

.route-map__canvas { position: relative; min-height: 0; display: grid; place-items: center; overflow: hidden; }
.route-map__online, .route-map__fallback { position: absolute; inset: 0; }
.route-map__online { z-index: 1; opacity: 0; background: var(--map-water); transition: opacity 180ms ease; }
.route-map__fallback { display: grid; place-items: center; opacity: 1; transition: opacity 180ms ease; }
.route-map.is-online .route-map__online { opacity: 1; }
.route-map.is-online .route-map__fallback { opacity: 0; visibility: hidden; }
.route-map__fallback > svg { width: 100%; height: 100%; max-height: 500px; overflow: visible; }
.route-map__mode { position: absolute; top: 10px; right: 10px; z-index: 900; padding: 5px 8px; border: 1px solid color-mix(in srgb, var(--line-strong) 80%, transparent); border-radius: 5px; background: color-mix(in srgb, var(--surface) 92%, transparent); color: var(--muted); font-size: 9px; font-weight: 750; line-height: 1; box-shadow: 0 1px 4px color-mix(in srgb, var(--text) 12%, transparent); }
.route-map.is-online .route-map__mode { color: var(--accent); }
.route-map .leaflet-container { width: 100%; height: 100%; background: var(--map-water); font-family: var(--font); }
.route-map .leaflet-control-attribution { background: color-mix(in srgb, var(--surface) 88%, transparent); color: var(--muted); font-size: 9px; }
.route-map .leaflet-control-attribution a { color: var(--accent); }
.leaflet-attribution-flag { display: none !important; }
.route-map .leaflet-control-zoom a { border-color: var(--line); background: var(--surface); color: var(--text); }
.route-map .leaflet-tooltip { border: 1px solid var(--line-strong); border-radius: 5px; padding: 4px 7px; background: var(--surface); color: var(--text); font-family: var(--font); font-size: 10px; font-weight: 720; box-shadow: 0 2px 8px color-mix(in srgb, var(--text) 12%, transparent); }
.route-map .leaflet-tooltip::before { display: none; }
.route-map__status { z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 12px 15px; border-bottom: 1px solid color-mix(in srgb, var(--line-strong) 70%, transparent); background: color-mix(in srgb, var(--surface) 90%, var(--map-water)); }
.route-map__status > div:last-child { text-align: right; }
.route-map__status span, .route-map__status strong { display: block; }
.route-map__status span { color: var(--muted); font-size: 9px; font-weight: 700; }
.route-map__status strong { margin-top: 1px; font-size: 11px; }
.route-map__water { fill: var(--map-water); }
.route-map__land { fill: var(--map-land); stroke: var(--map-coast); stroke-width: 0.55; }
.route-map__island { stroke-width: 0.45; }
.route-map__boundary, .route-map__river { fill: none; stroke-linecap: round; }
.route-map__boundary { stroke: color-mix(in srgb, var(--map-coast) 55%, transparent); stroke-width: 0.32; stroke-dasharray: 1.5 1.7; }
.route-map__river { stroke: color-mix(in srgb, var(--map-water) 86%, var(--map-coast)); stroke-width: 0.7; }
.route-map__region { fill: color-mix(in srgb, var(--muted) 58%, transparent); font-family: var(--font); font-size: 2.45px; font-weight: 720; letter-spacing: 0.11em; text-transform: uppercase; }
.route-map__region--water { fill: color-mix(in srgb, var(--muted) 46%, transparent); font-weight: 650; }
.route-map__track-shadow, .route-map__track, .route-map__progress { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.route-map__track-shadow { stroke: color-mix(in srgb, var(--surface) 78%, transparent); stroke-width: 5; }
.route-map__track { stroke: color-mix(in srgb, var(--muted) 55%, var(--line-strong)); stroke-width: 2.25; }
.route-map__progress { stroke: var(--accent); stroke-width: 3; stroke-dasharray: var(--progress) calc(100 - var(--progress)); }
.route-map__stop circle { fill: var(--surface); stroke: color-mix(in srgb, var(--muted) 72%, var(--line-strong)); stroke-width: 0.75; }
.route-map__stop.is-reached circle { fill: var(--accent); stroke: var(--surface); stroke-width: 1; }
.route-map__stop text { fill: var(--text); stroke: var(--map-water); stroke-width: 1.35px; paint-order: stroke; font-family: var(--font); font-size: 2.75px; font-weight: 740; }
.route-map__marker-ring { fill: color-mix(in srgb, var(--accent) 18%, transparent); stroke: color-mix(in srgb, var(--accent) 44%, transparent); stroke-width: 0.5; }
.route-map__marker-core { fill: var(--accent); stroke: var(--surface); stroke-width: 0.9; }
.route-map__marker-dot { fill: var(--surface); }

.milestone-picker { overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--control-radius); background: var(--surface-soft); }
.milestone-picker__heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 14px; border-bottom: 1px solid var(--line); background: var(--surface); }
.milestone-picker__heading div, .milestone-picker__heading strong, .milestone-picker__heading span { display: block; }
.milestone-picker__heading strong { font-size: 12px; }
.milestone-picker__heading span { margin-top: 2px; color: var(--muted); font-size: 10px; }
.milestone-picker__heading output { flex: 0 0 auto; color: var(--muted); font-size: 10px; font-weight: 720; }
.milestone-picker.has-pin .milestone-picker__heading output { color: var(--accent); }
.milestone-picker__search { padding: 12px 14px 14px; border-bottom: 1px solid var(--line); background: var(--surface); }
.milestone-picker__search > label { display: block; margin-bottom: 6px; color: var(--text); font-size: 11px; font-weight: 700; }
.milestone-picker__search-control { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.milestone-picker__search-control input { width: 100%; min-height: 44px; border: 1px solid var(--line-strong); border-radius: var(--control-radius); padding: 10px 12px; background: var(--surface); color: var(--text); }
.milestone-picker__search-control input::placeholder { color: var(--muted); opacity: 0.78; }
.milestone-picker__search-control input:focus { border-color: var(--accent); outline: 2px solid color-mix(in srgb, var(--accent) 16%, transparent); }
.milestone-picker__search-control .button { min-width: 88px; }
.milestone-picker__search-feedback { min-height: 16px; margin: 6px 0 0; color: var(--muted); font-size: 9px; }
.milestone-picker__search-feedback.is-error { color: var(--danger); }
.milestone-picker__search-results { display: grid; gap: 5px; margin-top: 8px; }
.milestone-picker__search-results[hidden] { display: none; }
.milestone-picker__search-result { width: 100%; border: 1px solid var(--line); border-radius: var(--control-radius); padding: 9px 10px; background: var(--surface-soft); color: var(--text); font: inherit; font-size: 10px; line-height: 1.35; text-align: left; cursor: pointer; }
.milestone-picker__search-result:hover, .milestone-picker__search-result:focus-visible { border-color: var(--accent); background: var(--accent-soft); }
.milestone-picker__map { height: 300px; min-height: 300px; cursor: crosshair; background: var(--map-water); }
.milestone-picker .leaflet-container { width: 100%; background: var(--map-water); font-family: var(--font); }
.milestone-picker .leaflet-control-attribution { background: color-mix(in srgb, var(--surface) 88%, transparent); color: var(--muted); font-size: 9px; }
.milestone-picker .leaflet-control-attribution a { color: var(--accent); }
.milestone-picker .leaflet-control-zoom a { border-color: var(--line); background: var(--surface); color: var(--text); }
.milestone-picker .leaflet-tooltip { border: 1px solid var(--line-strong); border-radius: 5px; padding: 4px 7px; background: var(--surface); color: var(--text); font-family: var(--font); font-size: 10px; font-weight: 720; box-shadow: 0 2px 8px color-mix(in srgb, var(--text) 12%, transparent); }
.milestone-picker .leaflet-tooltip::before { display: none; }
.milestone-picker__unavailable { margin: 0; padding: 10px 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }

.dashboard-summary { border-top: 1px solid var(--line-strong); }
.next-milestone { padding: 20px 0 26px; border-bottom: 1px solid var(--line); }
.next-milestone > span, .next-milestone small { display: block; color: var(--muted); font-size: 12px; }
.next-milestone > strong { display: block; margin-top: 14px; font-size: 27px; letter-spacing: -0.04em; }
.next-milestone p { margin: 8px 0 18px; color: var(--muted); font-size: 13px; }

.personal-summary { display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 12px; padding: 22px 0; }
.personal-summary div span, .personal-summary div strong { display: block; }
.personal-summary div span { color: var(--muted); font-size: 12px; }
.personal-summary div strong { margin-top: 2px; font-size: 17px; }

.dashboard-streams {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 46px;
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.leaderboard-preview, .activity-feed { min-width: 0; }
.ranking-list, .leaderboard-table ol, .milestone-list { margin: 0; padding: 0; list-style: none; }
.ranking-list li { display: grid; grid-template-columns: 24px 30px 1fr auto; align-items: center; gap: 9px; min-height: 48px; }
.ranking-list li.is-current { color: var(--accent); }
.rank { color: var(--muted); font-size: 12px; text-align: center; }
.ranking-list__name { font-size: 13px; font-weight: 600; }
.ranking-list__name small, .leaderboard-person small { margin-left: 5px; color: var(--muted); font-size: 10px; }
.ranking-list li > strong { font-size: 13px; }

.feed-list { display: grid; }
.feed-item { min-height: 52px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); }
.feed-item:last-child { border-bottom: 0; }
.feed-item div strong, .feed-item div span { display: block; }
.feed-item div strong { font-size: 13px; }
.feed-item div span { margin-top: 2px; color: var(--muted); font-size: 11px; }
.feed-item > strong { color: var(--accent); font-size: 13px; white-space: nowrap; }

/* Shared forms and empty states */
.empty-state, .inline-empty { border: 1px dashed var(--line-strong); border-radius: var(--radius); color: var(--muted); text-align: center; }
.empty-state { max-width: 620px; margin: 48px auto; padding: 58px 28px; }
.empty-state h1, .empty-state h2 { margin: 0; color: var(--text); }
.empty-state p { margin: 8px 0 0; }
.empty-state .button { margin-top: 18px; }
.inline-empty { padding: 20px; font-size: 13px; }

.form-stack { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field > span:first-child, .activity-types legend { color: var(--text); font-size: 12px; font-weight: 700; }
.field small { color: var(--muted); font-weight: 500; }
.field input, .field select, .field textarea, .input-with-unit {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: var(--control-radius);
  background: var(--surface);
  color: var(--text);
}
.field input, .field select, .field textarea { padding: 10px 12px; }
.field input::placeholder { color: var(--muted); opacity: 0.78; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); outline: 2px solid color-mix(in srgb, var(--accent) 16%, transparent); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.activity-form { display: grid; gap: 22px; padding: 24px; }
.activity-types { min-width: 0; margin: 0; padding: 0; border: 0; }
.activity-types legend { margin-bottom: 9px; }
.activity-types__grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 7px; }
.activity-choice { position: relative; cursor: pointer; }
.activity-choice input { position: absolute; opacity: 0; pointer-events: none; }
.activity-choice span { min-height: 42px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: var(--control-radius); background: var(--surface); font-size: 12px; font-weight: 650; }
.activity-choice input:checked + span { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.activity-choice input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 3px; }
.gps-tracker { border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 18px; background: var(--surface-soft); }
.gps-tracker__heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.gps-tracker__heading h2, .gps-tracker__heading p { margin: 0; }
.gps-tracker__heading h2 { font-size: 16px; letter-spacing: -0.02em; }
.gps-tracker__heading p { max-width: 52ch; margin-top: 4px; color: var(--muted); font-size: 11px; }
.gps-tracker__heading > span { flex: 0 0 auto; color: var(--muted); font-size: 10px; font-weight: 750; }
.gps-tracker.is-tracking .gps-tracker__heading > span, .gps-tracker.is-complete .gps-tracker__heading > span { color: var(--accent); }
.gps-tracker__stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 16px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--control-radius); background: var(--line); }
.gps-tracker__stats > div { min-width: 0; padding: 14px 12px; background: var(--surface); }
.gps-tracker__stats strong, .gps-tracker__stats span { display: block; }
.gps-tracker__stats strong { font-size: 19px; letter-spacing: -0.035em; }
.gps-tracker__stats span { margin-top: 2px; color: var(--muted); font-size: 9px; }
.gps-tracker__status { min-height: 20px; margin: 12px 0 0; color: var(--muted); font-size: 11px; }
.gps-tracker__status.is-error { color: var(--danger); }
.gps-tracker__controls { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 10px; }
.gps-tracker__controls [data-gps-start] { grid-column: 1 / -1; }
.gps-tracker.is-paused .gps-tracker__controls [data-gps-start] { grid-column: auto; }
.gps-tracker.is-paused .gps-tracker__controls [data-gps-discard] { grid-column: 1 / -1; }
.gps-tracker [hidden] { display: none; }
.gps-tracker > small { display: block; margin-top: 10px; color: var(--muted); font-size: 9px; }
.input-with-unit { display: flex; align-items: center; overflow: hidden; }
.input-with-unit input { min-width: 0; border: 0; background: transparent; }
.input-with-unit > span { padding: 0 12px; color: var(--muted); font-size: 12px; font-weight: 650; }
.score-preview { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px; border-radius: var(--control-radius); background: var(--surface-soft); }
.score-preview span { color: var(--muted); font-size: 12px; }
.score-preview strong { color: var(--text); font-size: 15px; }
.trust-note { margin: 16px 0 0; color: var(--muted); font-size: 12px; text-align: center; }
.delete-own-activity { display: flex; justify-content: center; margin-top: 18px; }

/* Team selection */
.team-select-page { max-width: 720px; }
.team-select-form { display: grid; gap: 18px; }
.team-choices { min-width: 0; margin: 0; padding: 0; border: 0; }
.team-choices legend { margin-bottom: 10px; font-size: 12px; font-weight: 700; }
.team-choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.team-choice { position: relative; cursor: pointer; }
.team-choice input { position: absolute; opacity: 0; pointer-events: none; }
.team-choice > span { min-height: 86px; display: flex; flex-direction: column; justify-content: center; gap: 2px; border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 16px; background: var(--surface); }
.team-choice strong { font-size: 15px; }
.team-choice small { color: var(--muted); font-size: 11px; }
.team-choice input:checked + span { border-color: var(--accent); background: var(--accent-soft); }
.team-choice input:checked + span strong { color: var(--accent); }
.team-choice input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 3px; }

/* Route */
.route-feature { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.route-feature .route-map { min-height: 500px; border: 0; border-radius: 0; }
.route-summary { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.route-summary > div { padding: 18px 22px; border-right: 1px solid var(--line); }
.route-summary > div:last-child { border-right: 0; }
.route-summary span, .route-summary strong { display: block; }
.route-summary span { color: var(--muted); font-size: 11px; }
.route-summary strong { margin-top: 4px; font-size: 14px; }
.milestone-section, .profile-activities, .profile-account, .admin-activities { margin-top: 44px; }
.milestone-list { position: relative; max-width: 760px; }
.milestone-list::before { content: ""; position: absolute; left: 18px; top: 18px; bottom: 18px; width: 1px; background: var(--line-strong); }
.milestone-item { position: relative; display: grid; grid-template-columns: 36px 1fr; gap: 16px; padding-bottom: 22px; }
.milestone-item__marker { position: relative; z-index: 1; width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; background: var(--bg); color: var(--muted); font-size: 11px; font-weight: 750; }
.milestone-item.is-reached .milestone-item__marker { border-color: var(--accent); background: var(--accent); color: #f5faf7; }
.milestone-item__content { padding: 3px 0 16px; border-bottom: 1px solid var(--line); }
.milestone-item__content > div { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; }
.milestone-item h3 { margin: 0; font-size: 17px; }
.milestone-item__content span { color: var(--muted); font-size: 12px; }
.milestone-item p { margin: 6px 0 0; color: var(--muted); font-size: 13px; }

/* Leaderboard */
.leaderboard-filters { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.segmented-control { width: fit-content; display: flex; gap: 2px; margin-bottom: 16px; padding: 3px; border: 1px solid var(--line); border-radius: var(--control-radius); background: var(--surface-soft); }
.segmented-control a { border-radius: 6px; padding: 7px 13px; color: var(--muted); font-size: 12px; font-weight: 700; text-decoration: none; }
.segmented-control a[aria-current="page"] { background: var(--surface); color: var(--text); }
.leaderboard-table { overflow: hidden; }
.leaderboard-table__head, .leaderboard-table li { display: grid; grid-template-columns: 64px minmax(0, 1fr) 110px 110px; align-items: center; gap: 14px; }
.leaderboard-table__head { padding: 13px 18px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 10px; font-weight: 700; }
.leaderboard-table__head span:nth-child(n+3), .leaderboard-table li > :nth-child(n+3) { text-align: right; }
.leaderboard-table li { min-height: 64px; padding: 9px 18px; border-bottom: 1px solid var(--line); }
.leaderboard-table li:last-child { border-bottom: 0; }
.leaderboard-table li.is-current { background: var(--accent-soft); }
.leaderboard-rank { font-size: 17px; font-weight: 750; }
.leaderboard-person { display: flex; align-items: center; gap: 10px; font-weight: 650; }
.leaderboard-activities { color: var(--muted); }
.team-monogram { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 7px; background: var(--surface-soft); color: var(--accent); font-size: 10px; font-weight: 800; }
.medal-standings { margin-top: 44px; }
.medal-table { overflow: hidden; }
.medal-table__head, .medal-table__row { display: grid; grid-template-columns: minmax(0, 1fr) 90px 90px 90px; align-items: center; gap: 14px; }
.medal-table__head { padding: 12px 18px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 10px; font-weight: 700; }
.medal-table__head span:not(:first-child), .medal-table__row > :not(:first-child) { text-align: center; }
.medal-table__row { min-height: 58px; padding: 9px 18px; border-bottom: 1px solid var(--line); }
.medal-table__row:last-child { border-bottom: 0; }
.medal-table__row.is-current { background: var(--accent-soft); }
.medal-count { font-size: 14px; }
.medal-count--gold { color: var(--gold); }
.medal-count--silver { color: var(--silver); }
.medal-count--bronze { color: var(--bronze); }

/* Profile */
.profile-hero { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px; margin-bottom: 32px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.profile-hero p, .profile-hero span { margin: 0; color: var(--muted); font-size: 13px; }
.profile-hero h1 { margin-block: 2px 5px; }
.profile-grid { display: grid; grid-template-columns: minmax(250px, 0.62fr) minmax(0, 1.38fr); gap: 24px; }
.profile-grid > .panel:first-child, .profile-stats, .medal-cabinet, .achievement-section, .admin-section { padding: 22px; }
.medal-cabinet--wide { grid-column: 1 / -1; }
.achievement-section { margin-top: 24px; }
.achievement-groups { display: grid; gap: 22px; }
.achievement-group { padding-top: 18px; border-top: 1px solid var(--line); }
.achievement-group:first-child { padding-top: 0; border-top: 0; }
.achievement-group > h3, .medal-columns h3 { margin: 0 0 9px; color: var(--muted); font-size: 11px; font-weight: 750; }
.achievement-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.achievement { display: grid; grid-template-columns: 32px 1fr; gap: 10px; padding: 12px; border-radius: var(--control-radius); background: var(--surface-soft); opacity: 0.6; }
.achievement.is-unlocked { background: var(--accent-soft); opacity: 1; }
.achievement__mark { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--muted); font-weight: 750; }
.achievement.is-unlocked .achievement__mark { border-color: var(--accent); color: var(--accent); }
.achievement h3, .achievement p { margin: 0; }
.achievement h3 { font-size: 13px; }
.achievement p { margin-top: 2px; color: var(--muted); font-size: 11px; }
.profile-stats { display: flex; flex-direction: column; }
.profile-stats > strong { margin-top: 28px; font-size: 36px; line-height: 1; letter-spacing: -0.045em; }
.profile-stats > span { margin-top: 6px; color: var(--muted); font-size: 12px; }
.profile-stats .button { margin-top: auto; }
.medal-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.medal-list { display: grid; }
.medal-row { min-height: 50px; display: grid; grid-template-columns: 32px 1fr; align-items: center; gap: 10px; border-bottom: 1px solid var(--line); }
.medal-row:last-child { border-bottom: 0; }
.medal-row > span:last-child strong, .medal-row > span:last-child small { display: block; }
.medal-row > span:last-child strong { font-size: 12px; }
.medal-row > span:last-child small { color: var(--muted); font-size: 10px; }
.medal-mark { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; background: var(--surface); font-size: 11px; font-weight: 850; }
.medal-mark--gold { color: var(--gold); }
.medal-mark--silver { color: var(--silver); }
.medal-mark--bronze { color: var(--bronze); }
.medal-empty { padding: 13px 0; color: var(--muted); font-size: 11px; }
.activity-history { padding: 6px 18px; }
.activity-history__row { min-height: 62px; display: grid; grid-template-columns: minmax(0, 1fr) 120px auto; align-items: center; gap: 20px; border-bottom: 1px solid var(--line); }
.activity-history__row:last-child { border-bottom: 0; }
.activity-history__value { text-align: right; }
.activity-history__row strong, .activity-history__row span { display: block; }
.activity-history__row strong { font-size: 13px; }
.activity-history__row span { color: var(--muted); font-size: 11px; }
.activity-history__value strong { color: var(--accent); }
.activity-edit-link { color: var(--accent); font-size: 11px; font-weight: 700; text-underline-offset: 3px; }
.security-disclosure { max-width: 560px; padding: 18px 20px; }
.security-disclosure[open] summary { padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.security-disclosure .compact-form { max-width: 420px; }
.security-disclosure .field > small { color: var(--muted); font-size: 11px; }

/* Public profiles */
.public-profile-team { display: inline-flex; margin: 0 0 1px; color: var(--muted); font-size: 13px; }
.public-profile-rank, .team-rank-badge { min-width: 120px; text-align: right; }
.public-profile-rank span, .public-profile-rank strong,
.team-rank-badge span, .team-rank-badge strong { display: block; }
.public-profile-rank span, .team-rank-badge span { color: var(--muted); font-size: 11px; }
.public-profile-rank strong, .team-rank-badge strong { margin-top: 3px; font-size: 21px; letter-spacing: -0.03em; }
.public-stat-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 14px; }
.public-stat { min-height: 150px; display: flex; flex-direction: column; padding: 20px; }
.public-stat > span { color: var(--muted); font-size: 11px; }
.public-stat > strong { margin-top: 18px; font-size: 29px; line-height: 1; letter-spacing: -0.04em; }
.public-stat > small { margin-top: auto; color: var(--muted); font-size: 10px; }
.public-stat .progress { margin-block: auto 9px; }
.public-profile-columns, .team-profile-columns { display: grid; grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1.25fr); gap: 32px; margin-top: 42px; }
.public-medal-panel { padding: 5px 18px; }
.public-achievement-grid { grid-template-columns: 1fr; }
.public-activities { margin-top: 42px; }
.public-activity-row { grid-template-columns: minmax(0, 1fr) auto; }

.team-profile-hero { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px; margin-bottom: 32px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.team-profile-hero p, .team-profile-hero span { margin: 0; color: var(--muted); font-size: 13px; }
.team-profile-hero h1 { margin: 2px 0 5px; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.05; letter-spacing: -0.045em; }
.team-monogram--large { width: 72px; height: 72px; border-radius: 12px; font-size: 18px; }
.team-progress-panel { padding: 22px; }
.team-progress-panel__main, .team-progress-panel__meta { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; }
.team-progress-panel__main div span, .team-progress-panel__main div strong { display: block; }
.team-progress-panel__main div span, .team-progress-panel__main > span { color: var(--muted); font-size: 11px; }
.team-progress-panel__main div strong { margin-top: 3px; font-size: 29px; letter-spacing: -0.04em; }
.team-progress-panel .progress { margin-block: 18px 10px; }
.team-progress-panel__meta { color: var(--muted); font-size: 11px; }
.team-progress-panel__meta strong { color: var(--text); }
.team-member-list { padding: 8px 18px; }
.team-feed-list { padding: 5px 18px; }

/* Admin */
.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.admin-grid--challenge { align-items: start; margin-top: 20px; }
.admin-users { display: grid; gap: 8px; margin-block: 18px; }
.admin-users > div { display: grid; grid-template-columns: 30px 1fr auto; align-items: center; gap: 9px; }
.admin-users > div > span:nth-child(2) strong, .admin-users > div > span:nth-child(2) small { display: block; }
.admin-users > div > span:nth-child(2) strong { font-size: 13px; }
.admin-users > div > span:nth-child(2) small { color: var(--muted); font-size: 10px; }
.admin-users .admin-label { color: var(--accent); font-size: 10px; font-weight: 700; }
.admin-user-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.admin-teams { display: grid; margin-block: 18px; }
.admin-teams > div:not(.inline-empty) { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 42px; border-bottom: 1px solid var(--line); }
.admin-teams > div:last-child { border-bottom: 0; }
.admin-teams strong { font-size: 13px; }
.admin-teams span { color: var(--muted); font-size: 11px; }
details { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; }
summary { color: var(--accent); font-size: 13px; font-weight: 700; cursor: pointer; }
.compact-form { margin-top: 16px; }
.admin-section--wide { margin-top: 20px; }
.challenge-control { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 0.7fr); align-items: end; gap: 24px; margin-block: 18px 10px; padding: 16px; border-radius: var(--control-radius); background: var(--surface-soft); }
.challenge-active-summary span, .challenge-active-summary strong { display: block; }
.challenge-active-summary span { color: var(--muted); font-size: 10px; }
.challenge-active-summary strong { margin-top: 3px; font-size: 15px; }
.challenge-picker .field { gap: 5px; }
.challenge-list { display: grid; }
.challenge-row { min-height: 66px; display: grid; grid-template-columns: minmax(0, 1fr) 70px auto; align-items: center; gap: 16px; padding-inline: 10px; border-bottom: 1px solid var(--line); }
.challenge-row:last-child { border-bottom: 0; }
.challenge-row > div strong, .challenge-row > div span { display: block; }
.challenge-row > div strong { font-size: 13px; }
.challenge-row > div span { margin-top: 2px; color: var(--muted); font-size: 10px; }
.challenge-row.is-selected { background: var(--surface-soft); }
.challenge-row.is-selected.is-active { background: var(--accent-soft); }
.challenge-status { color: var(--muted); font-size: 10px; font-weight: 700; }
.challenge-status--active { color: var(--accent); }
.challenge-actions { display: flex; align-items: center; justify-content: flex-end; gap: 7px; }
.challenge-actions .button { min-width: 82px; }
.challenge-actions form { margin: 0; }
.admin-milestones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.admin-milestones span { padding: 11px; border-radius: var(--control-radius); background: var(--surface-soft); color: var(--muted); font-size: 11px; }
.admin-milestones strong { display: block; color: var(--text); font-size: 12px; }
.admin-activity-list { padding: 6px 18px; }
.admin-activity-row { min-height: 64px; display: grid; grid-template-columns: 1fr 150px auto; align-items: center; gap: 18px; border-bottom: 1px solid var(--line); }
.admin-activity-row:last-child { border-bottom: 0; }
.admin-activity-row > div:nth-child(2) { text-align: right; }
.admin-activity-row strong, .admin-activity-row span { display: block; }
.admin-activity-row strong { font-size: 13px; }
.admin-activity-row span { color: var(--muted); font-size: 11px; }
.admin-user-edit-card { padding: 24px; }
.admin-user-edit-card__identity { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.admin-user-edit-card__identity strong, .admin-user-edit-card__identity > div > span { display: block; }
.admin-user-edit-card__identity strong { font-size: 18px; }
.admin-user-edit-card__identity > div > span { margin-top: 2px; color: var(--muted); font-size: 12px; }
.check-field { display: grid; grid-template-columns: 18px minmax(0, 1fr); align-items: start; gap: 10px; padding: 13px; border: 1px solid var(--line-strong); border-radius: var(--control-radius); cursor: pointer; }
.check-field input { width: 16px; height: 16px; margin: 3px 0 0; accent-color: var(--accent); }
.check-field strong, .check-field small { display: block; }
.check-field strong { font-size: 12px; }
.check-field small { margin-top: 2px; color: var(--muted); font-size: 11px; }
.form-divider { height: 1px; background: var(--line); }

/* Login */
.login-body { background: var(--bg); }
.login-shell { min-height: 100dvh; display: grid; grid-template-rows: auto 1fr; }
.login-header { width: min(calc(100% - 48px), 1180px); margin-inline: auto; padding-top: 28px; }
.login-main { display: grid; place-items: center; padding: 40px 24px 100px; }
.login-card { width: min(100%, 360px); }
.login-card--register { width: min(100%, 420px); }
.login-card h1 { margin: 0; font-size: 32px; line-height: 1; letter-spacing: -0.045em; }
.login-card > p { margin: 9px 0 26px; color: var(--muted); }
.login-card .notice { margin-bottom: 16px; }
.auth-switch { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.auth-switch a { color: var(--accent); font-weight: 750; text-decoration: none; }
.auth-switch a:hover { text-decoration: underline; text-underline-offset: 3px; }
.mobile-nav { display: none; }

@media (max-width: 960px) {
  .desktop-nav { display: none; }
  .site-header__inner { grid-template-columns: 1fr auto; }
  .dashboard-core, .profile-grid, .admin-grid { grid-template-columns: 1fr; }
  .dashboard-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .next-milestone { border-bottom: 0; }
  .personal-summary { border-left: 1px solid var(--line); padding-left: 24px; }
  .profile-stats .button { margin-top: 28px; }
  .admin-milestones { grid-template-columns: repeat(3, 1fr); }
  .public-profile-columns, .team-profile-columns { grid-template-columns: 1fr; }
  .challenge-control { grid-template-columns: 1fr; align-items: stretch; }
  .challenge-overview-item { grid-template-columns: 1fr auto; }
  .challenge-overview-item__facts { grid-column: 1 / -1; grid-row: 2; }
  .challenge-overview-item__progress { grid-column: 1 / -1; }
  .owner-editor-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .shell, .narrow-shell { width: min(calc(100% - 28px), var(--shell)); }
  .site-header__inner { min-height: 58px; }
  .brand { font-size: 14px; }
  .user-chip > span:last-child { display: none; }
  .app-main { padding-bottom: 88px; }
  .page-shell { padding-top: 26px; }
  .page-heading h1, .profile-hero h1, .team-profile-hero h1 { font-size: 2rem; }

  .challenge-overview-heading { margin-bottom: 24px; }
  .challenge-overview-intro { grid-template-columns: 1fr; gap: 0; }
  .challenge-overview-intro > .button { width: 100%; margin: 0 0 28px; }
  .challenge-overview-item { grid-template-columns: 1fr; gap: 18px; padding: 23px 0; }
  .challenge-overview-item__facts, .challenge-overview-item__progress { grid-column: 1; grid-row: auto; }
  .challenge-overview-item > .button, .challenge-overview-item > form { width: 100%; justify-self: stretch; }
  .challenge-overview-item > form .button { width: 100%; }
  .challenge-overview-item__facts { gap: 10px; }
  .participation-note { align-items: flex-start; flex-direction: column; gap: 2px; }
  .owner-create { padding: 16px 18px 20px; }
  .owner-challenge-row { grid-template-columns: 1fr; gap: 14px; padding: 18px 0; }
  .owner-challenge-row .challenge-actions { grid-column: auto; display: grid; grid-template-columns: 1fr 1fr; }
  .owner-challenge-row .challenge-actions > * { width: 100%; }
  .owner-challenge-row .challenge-actions .button { width: 100%; }

  .dashboard-heading { grid-template-columns: 1fr; align-items: start; gap: 20px; padding-bottom: 22px; }
  .dashboard-heading h1 { font-size: 2rem; }
  .dashboard-heading .button { width: 100%; }
  .progress-overview { grid-template-columns: 1fr; gap: 13px; padding-block: 20px 24px; }
  .progress-overview__value strong { font-size: 27px; }
  .progress-overview__meta { justify-content: space-between; gap: 12px; }
  .weekly-goal { grid-template-columns: 1fr; gap: 9px; }
  .dashboard-core { gap: 28px; padding-top: 24px; }
  .dashboard-summary { grid-template-columns: 1fr; gap: 0; }
  .next-milestone { border-bottom: 1px solid var(--line); }
  .personal-summary { border-left: 0; padding-left: 0; }
  .dashboard-streams { grid-template-columns: 1fr; gap: 34px; margin-top: 34px; padding-top: 24px; }
  .route-map { min-height: 300px; }
  .route-feature .route-map { min-height: 330px; }
  .milestone-picker__map { height: 250px; min-height: 250px; }

  .form-grid, .activity-types__grid, .achievement-grid, .route-summary, .team-choice-grid { grid-template-columns: 1fr; }
  .activity-form, .profile-grid > .panel:first-child, .profile-stats, .medal-cabinet, .achievement-section, .admin-section { padding: 18px; }
  .activity-types__grid { grid-template-columns: 1fr 1fr; }
  .gps-tracker { padding: 15px; }
  .gps-tracker__stats strong { font-size: 17px; }
  .field input, .field select, .field textarea, .milestone-picker__search-control input { font-size: 16px; }
  .score-preview { align-items: flex-start; flex-direction: column; gap: 3px; }
  .route-summary > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .route-summary > div:last-child { border-bottom: 0; }

  .profile-hero, .team-profile-hero { grid-template-columns: auto 1fr; gap: 14px; }
  .profile-logout { grid-column: 1 / -1; }
  .profile-logout .button { width: 100%; }
  .avatar--large { width: 58px; height: 58px; font-size: 18px; }
  .team-monogram--large { width: 58px; height: 58px; font-size: 15px; }
  .public-profile-rank, .team-rank-badge { grid-column: 1 / -1; min-width: 0; display: flex; align-items: baseline; justify-content: space-between; text-align: left; }
  .public-stat-grid { grid-template-columns: 1fr 1fr; }
  .public-stat--wide { grid-column: 1 / -1; }
  .public-profile-columns, .team-profile-columns { gap: 34px; margin-top: 34px; }
  .team-progress-panel__main, .team-progress-panel__meta { align-items: flex-start; flex-direction: column; gap: 5px; }

  .leaderboard-table__head { display: none; }
  .leaderboard-table li { grid-template-columns: 32px minmax(0, 1fr) auto; min-height: 60px; padding: 8px 12px; }
  .leaderboard-activities { display: none; }
  .leaderboard-table li > strong { text-align: right; }
  .leaderboard-person small { display: block; margin-left: 0; margin-top: 1px; }
  .leaderboard-filters { align-items: flex-start; flex-direction: column; gap: 0; }
  .medal-table__head, .medal-table__row { grid-template-columns: minmax(0, 1fr) 45px 45px 45px; gap: 6px; padding-inline: 12px; }

  .activity-history { padding-inline: 12px; }
  .activity-history__row { grid-template-columns: 1fr auto; align-items: start; padding-block: 12px; }
  .activity-history__row > div:first-child { grid-column: 1 / -1; }
  .admin-milestones { grid-template-columns: 1fr 1fr; }
  .admin-activity-list { padding-inline: 12px; }
  .admin-activity-row { grid-template-columns: 1fr auto; gap: 9px; padding-block: 12px; }
  .admin-activity-row form { grid-column: 1 / -1; }
  .admin-activity-row .button { width: 100%; }
  .challenge-row { grid-template-columns: 1fr auto; padding-block: 12px; }
  .challenge-actions { grid-column: 1 / -1; justify-content: stretch; }
  .challenge-actions > * { flex: 1; }
  .challenge-actions .button { width: 100%; }
  .admin-user-edit-card { padding: 18px; }

  .mobile-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 30;
    min-height: 62px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    padding: 6px max(7px, env(safe-area-inset-right)) max(7px, env(safe-area-inset-bottom)) max(7px, env(safe-area-inset-left));
    border-top: 1px solid var(--line);
    background: color-mix(in srgb, var(--surface) 96%, transparent);
    backdrop-filter: blur(14px);
  }

  .mobile-nav--admin { grid-template-columns: repeat(6, 1fr); }

  .mobile-nav a {
    display: grid;
    place-items: center;
    border-radius: 6px;
    color: var(--muted);
    font-size: 10px;
    font-weight: 650;
    text-decoration: none;
  }

  .mobile-nav a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); }
}

@media (max-width: 390px) {
  .mobile-nav--admin a { font-size: 9px; }
}

@media (max-width: 430px) {
  .section-heading { align-items: flex-start; flex-direction: column; gap: 7px; }
  .activity-types__grid { grid-template-columns: 1fr; }
  .gps-tracker__heading { flex-direction: column; gap: 7px; }
  .gps-tracker__controls { grid-template-columns: 1fr; }
  .gps-tracker__controls .button { width: 100%; }
  .medal-columns { grid-template-columns: 1fr; }
  .milestone-item__content > div { flex-direction: column; }
  .activity-history__value { text-align: left; }
  .admin-milestones { grid-template-columns: 1fr; }
  .route-map__status { align-items: flex-start; flex-direction: column; gap: 6px; }
  .route-map__status > div:last-child { text-align: left; }
  .milestone-picker__heading { align-items: flex-start; flex-direction: column; gap: 6px; }
  .milestone-picker__search-control { grid-template-columns: 1fr; }
  .milestone-picker__search-control .button { width: 100%; }
  .milestone-picker__map { height: 230px; min-height: 230px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}

/* PaceCrew visual system */
.site-header {
  border-bottom-color: color-mix(in srgb, var(--line) 86%, transparent);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--accent) 3%, transparent);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  backdrop-filter: blur(18px) saturate(140%);
}

.site-header__inner { min-height: 72px; gap: 34px; }

.brand {
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.055em;
}

.brand strong { color: var(--text); font-weight: 800; }

.brand__mark {
  position: relative;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  display: block;
  overflow: hidden;
  border-radius: 9px;
  background: #123d35;
}

.brand__mark i {
  position: absolute;
  display: block;
  border-radius: 50%;
  background: var(--signal);
}

.brand__mark i:nth-child(1) { width: 5px; height: 5px; left: 5px; bottom: 6px; }
.brand__mark i:nth-child(2) { width: 5px; height: 5px; left: 12px; top: 11px; background: #f6f8f5; }
.brand__mark i:nth-child(3) { width: 5px; height: 5px; right: 5px; top: 6px; }
.brand__mark::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  width: 14px;
  height: 7px;
  border-top: 2px solid #f6f8f5;
  transform: rotate(-24deg);
}

.desktop-nav { gap: 28px; }
.desktop-nav a { padding-block: 26px 23px; font-size: 14px; font-weight: 650; }
.desktop-nav a[aria-current="page"]::after { height: 3px; border-radius: 3px 3px 0 0; }
.user-chip { padding: 5px 8px 5px 5px; border-radius: 12px; transition: background-color 160ms ease; }
.user-chip:hover { background: var(--surface-soft); }

.app-main { padding-bottom: 76px; }
.page-shell { padding-top: clamp(30px, 5vw, 58px); }
.page-heading { margin-bottom: 36px; }
.page-heading h1,
.profile-hero h1,
.team-profile-hero h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 780;
  line-height: 1.02;
  letter-spacing: -0.055em;
}
.page-heading > p:last-child { margin-top: 14px; color: var(--muted); line-height: 1.55; }
.eyebrow { margin-bottom: 8px; font-size: 12px; font-weight: 720; }
.back-link { min-height: 32px; align-items: center; margin-bottom: 18px; text-decoration: none; }

.panel {
  border-color: var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 1px 1px color-mix(in srgb, var(--accent) 3%, transparent);
}

.button {
  min-height: 46px;
  border-radius: var(--control-radius);
  padding: 11px 17px;
  font-size: 14px;
  font-weight: 740;
  transition: transform 150ms ease, background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}
.button:active { transform: scale(.98); }
.button--primary { background: #123d35; color: #f6f8f5; }
.button--primary:hover { background: #0b3029; }
.button--secondary { border-color: var(--line-strong); background: var(--surface); }
.button--small { min-height: 38px; padding: 8px 12px; font-size: 12px; }

@media (prefers-color-scheme: dark) {
  .button--primary { background: var(--signal); color: #123d35; }
  .button--primary:hover { background: #d6ed82; color: #123d35; }
}

.field { gap: 8px; }
.field > span:first-child,
.activity-types legend { font-size: 13px; font-weight: 720; }
.field input,
.field select,
.field textarea,
.input-with-unit {
  min-height: 48px;
  border-color: var(--line-strong);
  border-radius: var(--control-radius);
  background: var(--surface);
}
.field input,
.field select,
.field textarea { padding: 12px 13px; }
.field input:focus,
.field select:focus,
.field textarea:focus { outline-width: 3px; }

.notice { border-radius: var(--control-radius); padding: 13px 15px; }
.section-heading { margin-bottom: 20px; }
.section-heading h2,
.profile-stats h2,
.admin-section h2 { font-size: 18px; font-weight: 760; letter-spacing: -0.035em; }
.section-heading p { margin-top: 5px; line-height: 1.45; }

/* Dashboard */
.dashboard-heading {
  align-items: center;
  padding-bottom: 30px;
  border-bottom: 0;
}
.dashboard-heading > div > span,
.dashboard-team-link { margin-bottom: 7px; color: var(--muted); font-size: 13px; font-weight: 680; }
.dashboard-heading h1 { font-size: clamp(2.35rem, 5vw, 4rem); font-weight: 790; }
.dashboard-heading p { max-width: 62ch; margin-top: 11px; font-size: 15px; }

.progress-overview {
  grid-template-columns: auto minmax(180px, 1fr) auto;
  gap: 30px;
  margin-bottom: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.progress-overview__value strong { font-size: clamp(2.4rem, 5vw, 4.5rem); font-weight: 790; }
.progress-overview__value span { font-size: 15px; }
.progress { height: 7px; background: color-mix(in srgb, var(--line) 86%, var(--surface)); }
.progress span { background: var(--signal); }
.progress-overview__meta { align-items: flex-end; flex-direction: column; gap: 3px; font-size: 12px; }
.progress-overview__meta strong { font-size: 15px; }

.weekly-goal {
  margin-bottom: 34px;
  padding: 15px 18px;
  border: 0;
  border-radius: var(--control-radius);
  background: var(--surface-soft);
}
.weekly-goal .progress { height: 4px; }
.weekly-goal > a { color: var(--accent); }

.dashboard-core {
  grid-template-columns: minmax(0, 1.62fr) minmax(260px, .62fr);
  gap: 40px;
  padding-top: 34px;
}
.dashboard-summary { border-top-color: var(--line-strong); }
.next-milestone { padding-top: 24px; }
.next-milestone > strong { margin-top: 12px; font-size: 32px; font-weight: 770; }
.dashboard-streams { gap: 54px; }
.ranking-list li { min-height: 54px; }
.ranking-list li.is-current {
  margin-inline: -10px;
  padding-inline: 10px;
  border-radius: 10px;
  background: var(--signal-soft);
  color: var(--text);
}
.feed-item { min-height: 58px; }
.feed-item > strong { color: var(--accent); }

/* Maps */
.route-map {
  min-height: 430px;
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.route-map__status { padding: 16px 18px; background: var(--surface); }
.route-map__status span { font-size: 10px; }
.route-map__status strong { margin-top: 3px; font-size: 13px; }
.route-map__mode { top: 12px; right: 12px; border-radius: 8px; padding: 7px 9px; }
.route-map .leaflet-control-zoom { margin: 14px 0 0 14px; border: 0; }
.route-map .leaflet-control-zoom a { width: 38px; height: 38px; line-height: 38px; }
.route-map .leaflet-tooltip { border-radius: 8px; padding: 6px 9px; font-size: 11px; }
.route-feature { border-radius: 18px; box-shadow: var(--shadow); }
.route-feature .route-map { min-height: 560px; box-shadow: none; }
.route-summary > div { padding: 20px 24px; }
.route-summary strong { font-size: 15px; }
.milestone-item__marker { width: 38px; height: 38px; background: var(--surface); }
.milestone-item.is-reached .milestone-item__marker { background: #123d35; color: #f6f8f5; }
.milestone-list::before { left: 19px; }

/* Challenge overview */
.challenge-overview-intro { align-items: center; }
.challenge-overview-heading { margin-bottom: 34px; }
.challenge-overview-list { border-block-color: var(--line-strong); }
.challenge-overview-item { padding: 32px 8px; }
.challenge-overview-item h2 { font-weight: 770; }
.challenge-overview-item__status span { text-transform: none; letter-spacing: 0; font-size: 11px; }
.challenge-overview-item__facts strong { font-size: 20px; }
.challenge-overview-item__facts span { font-size: 11px; }
.challenge-overview-item.is-joined .challenge-overview-item__status span { color: var(--accent); }
.participation-note { border-left-color: var(--signal); }
.challenge-context-picker,
.challenge-context-label { padding: 14px 16px; border-radius: var(--control-radius); background: var(--surface); }
.owner-create { padding: 20px 24px 24px; }
.owner-challenge-row.is-selected { background: var(--signal-soft); }

/* GPS and activity */
.activity-form.panel { padding: 0; border: 0; background: transparent; box-shadow: none; }
.activity-types__grid { gap: 8px; }
.activity-choice span { min-height: 46px; border-radius: 12px; }
.activity-choice input:checked + span { border-color: #123d35; background: #123d35; color: #f6f8f5; }

.gps-tracker {
  overflow: hidden;
  border: 0;
  border-radius: 20px;
  padding: 24px;
  background: #123d35;
  color: #f6f8f5;
  box-shadow: 0 24px 60px color-mix(in srgb, #123d35 20%, transparent);
}
.gps-tracker__heading h2 { color: #f6f8f5; font-size: 20px; }
.gps-tracker__heading p,
.gps-tracker__heading > span,
.gps-tracker__status,
.gps-tracker > small { color: #b8c9c1; }
.gps-tracker.is-tracking .gps-tracker__heading > span,
.gps-tracker.is-complete .gps-tracker__heading > span { color: var(--signal); }
.gps-tracker__stats {
  grid-template-columns: 1.35fr 1fr .85fr;
  gap: 0;
  margin-top: 24px;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.gps-tracker__stats > div { padding: 0 18px; border-left: 1px solid rgb(246 248 245 / .18); background: transparent; }
.gps-tracker__stats > div:first-child { padding-left: 0; border-left: 0; }
.gps-tracker__stats strong { color: #f6f8f5; font-size: clamp(1.7rem, 5vw, 2.7rem); font-variant-numeric: tabular-nums; }
.gps-tracker__stats span { margin-top: 3px; color: #b8c9c1; font-size: 10px; }
.gps-tracker__map {
  position: relative;
  height: 230px;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid rgb(246 248 245 / .16);
  border-radius: 15px;
  background: #203f35;
}
.gps-tracker__map > [data-gps-map] { width: 100%; height: 100%; opacity: 0; transition: opacity 180ms ease; }
.gps-tracker__map.has-position > [data-gps-map] { opacity: 1; }
.gps-tracker__map > p {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 24px;
  color: #b8c9c1;
  font-size: 12px;
  text-align: center;
}
.gps-tracker__map.has-position > p { display: none; }
.gps-tracker__map .leaflet-container { width: 100%; height: 100%; background: #dbe8e2; }
.gps-tracker__map .leaflet-control-attribution { font-size: 8px; }
.gps-tracker__status { margin-top: 14px; }
.gps-tracker__controls { margin-top: 14px; }
.gps-tracker .button--primary { background: var(--signal); color: #123d35; }
.gps-tracker .button--secondary { border-color: var(--signal); background: transparent; color: #f6f8f5; }
.gps-tracker .button--secondary:hover { background: rgb(201 232 91 / .12); }
.score-preview { padding: 16px; border: 1px solid var(--line); background: var(--surface); }

/* Leaderboards and profiles */
.segmented-control { padding: 4px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-soft); }
.segmented-control a { min-height: 38px; border-radius: 9px; }
.segmented-control a[aria-current="page"] { background: var(--surface); box-shadow: 0 1px 4px color-mix(in srgb, var(--accent) 8%, transparent); }
.leaderboard-table { border-radius: 18px; }
.leaderboard-table li.is-current,
.medal-table__row.is-current { background: var(--signal-soft); }
.leaderboard-rank { font-weight: 780; }
.leaderboard-table li:nth-child(1) .leaderboard-rank { color: var(--gold); }
.leaderboard-table li:nth-child(2) .leaderboard-rank { color: var(--silver); }
.leaderboard-table li:nth-child(3) .leaderboard-rank { color: var(--bronze); }
.team-monogram { border-radius: 9px; background: var(--surface-soft); }
.profile-hero,
.team-profile-hero { margin-bottom: 36px; padding-bottom: 32px; }
.profile-grid { gap: 28px; }
.profile-grid > .panel:first-child,
.profile-stats,
.medal-cabinet,
.achievement-section,
.admin-section { padding: 24px; }
.profile-stats > strong { font-size: 44px; }
.profile-management { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.achievement { border: 1px solid transparent; border-radius: 12px; }
.achievement.is-unlocked { border-color: color-mix(in srgb, var(--accent) 18%, var(--line)); background: var(--signal-soft); }
.achievement.is-unlocked .achievement__mark { border-color: #123d35; color: #123d35; }
.medal-mark { background: var(--surface); }

/* Management and authentication */
.admin-section,
.admin-user-edit-card { border-radius: 18px; }
.challenge-control { border-radius: 14px; }
.admin-milestones span { border-radius: 11px; }
.milestone-picker { border-radius: 14px; }
.milestone-picker__map { height: 340px; min-height: 340px; }
.check-field { border-radius: 12px; }
.login-body { background: var(--bg); }
.login-header { padding-top: max(26px, env(safe-area-inset-top)); }
.login-main { padding-bottom: max(72px, env(safe-area-inset-bottom)); }
.login-card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.login-card h1 { font-size: 36px; }
.auth-switch { border-top-color: var(--line); }

/* Mobile navigation icons */
.nav-icon { position: relative; width: 24px; height: 24px; display: block; color: currentColor; }
.nav-icon--home::before { content: ""; position: absolute; left: 4px; top: 7px; width: 16px; height: 14px; border: 2px solid currentColor; border-top: 0; border-radius: 0 0 4px 4px; }
.nav-icon--home::after { content: ""; position: absolute; left: 4px; top: 3px; width: 16px; height: 16px; border-left: 2px solid currentColor; border-top: 2px solid currentColor; transform: rotate(45deg) scale(.72); border-radius: 2px 0 0; }
.nav-icon--flag { border-left: 2px solid currentColor; }
.nav-icon--flag::before { content: ""; position: absolute; left: 1px; top: 2px; width: 15px; height: 10px; border: 2px solid currentColor; border-left: 0; border-radius: 0 4px 4px 0; }
.nav-icon--ranking { display: flex; align-items: flex-end; justify-content: center; gap: 2px; }
.nav-icon--ranking i { width: 5px; border: 2px solid currentColor; border-bottom: 0; border-radius: 2px 2px 0 0; }
.nav-icon--ranking i:nth-child(1) { height: 9px; }
.nav-icon--ranking i:nth-child(2) { height: 17px; }
.nav-icon--ranking i:nth-child(3) { height: 13px; }
.nav-icon--activity { width: 34px; height: 34px; border-radius: 50%; background: #123d35; color: var(--signal); }
.nav-icon--activity::before,
.nav-icon--activity::after { content: ""; position: absolute; background: currentColor; }
.nav-icon--activity::before { left: 8px; right: 8px; top: 16px; height: 2px; }
.nav-icon--activity::after { top: 8px; bottom: 8px; left: 16px; width: 2px; }
.nav-icon--route i { position: absolute; width: 7px; height: 7px; border: 2px solid currentColor; border-radius: 50%; background: var(--surface); }
.nav-icon--route i:nth-child(1) { left: 0; bottom: 2px; }
.nav-icon--route i:nth-child(2) { left: 9px; top: 8px; }
.nav-icon--route i:nth-child(3) { right: 0; top: 1px; }
.nav-icon--route::before { content: ""; position: absolute; left: 4px; top: 11px; width: 17px; height: 8px; border-top: 2px solid currentColor; transform: rotate(-25deg); }
.nav-icon--profile::before { content: ""; position: absolute; left: 8px; top: 1px; width: 8px; height: 8px; border: 2px solid currentColor; border-radius: 50%; }
.nav-icon--profile::after { content: ""; position: absolute; left: 3px; bottom: 1px; width: 18px; height: 10px; border: 2px solid currentColor; border-bottom: 0; border-radius: 12px 12px 0 0; }

@media (max-width: 960px) {
  .site-header__inner { min-height: 66px; }
  .dashboard-summary { gap: 28px; }
}

@media (max-width: 767px) {
  .shell,
  .narrow-shell { width: min(calc(100% - 32px), var(--shell)); }
  .site-header__inner { min-height: 62px; }
  .brand { gap: 8px; font-size: 20px; }
  .brand__mark { width: 26px; height: 26px; }
  .app-main { padding-bottom: calc(92px + env(safe-area-inset-bottom)); }
  .page-shell { padding-top: 26px; }
  .page-heading { margin-bottom: 28px; }
  .page-heading h1,
  .profile-hero h1,
  .team-profile-hero h1 { font-size: 2.05rem; }

  .dashboard-heading { gap: 18px; padding-bottom: 22px; }
  .dashboard-heading,
  .progress-overview,
  .weekly-goal,
  .dashboard-core,
  .dashboard-summary,
  .dashboard-streams { grid-template-columns: minmax(0, 1fr); }
  .dashboard-heading h1 { font-size: 2.45rem; }
  .progress-overview { gap: 16px; padding: 22px; border-radius: 16px; }
  .progress-overview__value { flex-wrap: nowrap; white-space: nowrap; }
  .progress-overview__value strong { font-size: 3rem; }
  .progress-overview__meta { align-items: flex-start; flex-direction: row; justify-content: space-between; }
  .weekly-goal { margin-bottom: 28px; }
  .dashboard-core { padding-top: 28px; }
  .dashboard-summary { gap: 0; }
  .dashboard-streams { gap: 40px; }
  .route-map { min-height: 350px; border-radius: 16px; }
  .route-feature .route-map { min-height: 470px; }
  .route-map__status { align-items: flex-start; gap: 12px; }

  .activity-types__grid {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 3px;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }
  .activity-types__grid::-webkit-scrollbar { display: none; }
  .activity-choice { min-width: 104px; scroll-snap-align: start; }
  .gps-tracker { margin-inline: -4px; padding: 20px; border-radius: 18px; }
  .gps-tracker__stats { grid-template-columns: 1.2fr 1fr; }
  .gps-tracker__stats > div { padding-inline: 14px; }
  .gps-tracker__stats > div:nth-child(3) { grid-column: 1 / -1; margin-top: 16px; padding: 12px 0 0; border-top: 1px solid rgb(246 248 245 / .18); border-left: 0; }
  .gps-tracker__stats strong { font-size: 2rem; }
  .gps-tracker__map { height: 260px; }
  .gps-tracker__controls { grid-template-columns: 1fr; }
  .gps-tracker__controls .button,
  .gps-tracker__controls [data-gps-start] { grid-column: auto; width: 100%; min-height: 52px; }

  .challenge-overview-item { padding-inline: 2px; }
  .challenge-overview-item__facts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .leaderboard-filters { gap: 10px; }
  .segmented-control { width: 100%; }
  .segmented-control a { flex: 1; }
  .profile-management { display: grid; grid-template-columns: 1fr; }

  .mobile-nav {
    min-height: 76px;
    grid-template-columns: repeat(5, 1fr);
    align-items: end;
    padding: 7px max(7px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(7px, env(safe-area-inset-left));
    border-top-color: color-mix(in srgb, var(--line) 90%, transparent);
    background: color-mix(in srgb, var(--surface) 94%, transparent);
    -webkit-backdrop-filter: blur(18px) saturate(150%);
    backdrop-filter: blur(18px) saturate(150%);
    box-shadow: 0 -10px 30px color-mix(in srgb, var(--accent) 5%, transparent);
  }
  .mobile-nav a {
    min-width: 0;
    min-height: 58px;
    grid-template-rows: 34px auto;
    align-content: end;
    gap: 2px;
    border-radius: 10px;
    padding: 2px;
    font-size: 10px;
    font-weight: 650;
  }
  .mobile-nav a[aria-current="page"] { background: transparent; color: var(--accent); }
  .mobile-nav a[aria-current="page"] > span:last-child { font-weight: 780; }
  .mobile-nav__action { transform: translateY(-2px); }
  .mobile-nav__action:active { transform: translateY(-2px) scale(.96); }
}

@media (max-width: 430px) {
  .section-heading { flex-direction: row; align-items: flex-start; gap: 14px; }
  .section-heading > div { min-width: 0; }
  .section-heading .text-link { flex: 0 0 auto; }
  .route-map__status { flex-direction: row; }
  .route-map__status > div:last-child { text-align: right; }
  .gps-tracker__heading { flex-direction: row; }
  .challenge-overview-item__facts strong { font-size: 17px; }
  .challenge-overview-item__facts span { font-size: 9px; }
  .login-main { align-items: start; padding-inline: 16px; padding-top: 26px; }
  .login-card { padding: 24px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .mobile-nav__action { transform: none; }
}

/* Profile images and activity reactions */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.avatar { overflow: hidden; }
.avatar img { width: 100%; height: 100%; display: block; border-radius: inherit; object-fit: cover; }
.avatar.has-photo { border: 1px solid color-mix(in srgb, var(--line-strong) 74%, transparent); background: var(--surface-soft); }

.avatar-settings {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin-bottom: 14px;
  padding: 18px;
}
.avatar-settings__copy h3 { margin: 0; font-size: 15px; }
.avatar-settings__copy p { max-width: 52ch; margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.avatar-settings__actions { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.avatar-settings__actions form { margin: 0; }
.avatar-upload-button { cursor: pointer; white-space: nowrap; }
.avatar-upload-button.is-busy { opacity: .62; pointer-events: none; }
.avatar-upload-status.is-error { color: var(--danger); }
.avatar-upload-status:empty { display: none; }
.button--quiet { border-color: transparent; background: transparent; color: var(--muted); }
.button--quiet:hover { border-color: var(--line); background: var(--surface-soft); color: var(--text); }

.feed-item { display: block; min-height: 0; padding: 12px 0; }
.feed-item__main {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
}
.feed-item__copy { min-width: 0; }
.feed-item__copy strong,
.feed-item__copy span { display: block; }
.feed-item__copy strong { overflow: hidden; font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.feed-item__copy span { margin-top: 2px; color: var(--muted); font-size: 11px; }
.feed-item__main > strong { color: var(--accent); font-size: 13px; white-space: nowrap; }
.reaction-bar { display: flex; align-items: center; gap: 6px; margin: 8px 0 0 40px; }
.reaction-form { margin: 0; }
.reaction-button {
  position: relative;
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}
.reaction-button:hover { border-color: var(--line-strong); background: var(--surface-soft); }
.reaction-button:active { transform: scale(.96); }
.reaction-button.is-selected { border-color: var(--accent); background: var(--accent-soft); }
.reaction-button:disabled { cursor: wait; opacity: .58; }
.reaction-button > span { font-size: 17px; line-height: 1; }
.reaction-button small { min-width: 9px; color: var(--muted); font-size: 10px; font-weight: 750; }
.reaction-button[data-reactors]::after {
  content: attr(data-reactors);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 7px);
  z-index: 1000;
  max-width: 240px;
  width: max-content;
  padding: 7px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.3;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 4px);
  transition: opacity 150ms ease, transform 150ms ease;
}
.reaction-button[data-reactors]:hover::after,
.reaction-button[data-reactors]:focus-visible::after { opacity: 1; transform: translate(-50%, 0); }
.reaction-status { margin: 6px 0 0 40px; color: var(--danger); font-size: 11px; }
.reaction-status:empty { display: none; }

@media (max-width: 767px) {
  .avatar-settings { grid-template-columns: auto minmax(0, 1fr); align-items: start; }
  .avatar-settings__actions { grid-column: 1 / -1; justify-content: flex-start; }
  .avatar-settings__actions .button { min-height: 44px; }
  .reaction-bar { overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
  .reaction-bar::-webkit-scrollbar { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reaction-button { transition: none; }
  .reaction-button[data-reactors]::after { transition: none; }
}

/* Home */
.home-page { max-width: 1040px; }
.home-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; padding-bottom: 30px; border-bottom: 1px solid var(--line); }
.home-heading span { color: var(--muted); font-size: 13px; font-weight: 680; }
.home-heading h1 { margin: 3px 0 0; font-size: clamp(2.2rem, 5vw, 3.7rem); line-height: 1.02; letter-spacing: -.055em; }
.home-heading p { margin: 9px 0 0; color: var(--muted); }
.home-challenges { margin-top: 40px; }
.home-challenge-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.home-challenge { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 14px; min-height: 132px; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: var(--surface); text-decoration: none; transition: transform 160ms ease, border-color 160ms ease; }
.home-challenge:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.home-challenge > div:first-child strong, .home-challenge > div:first-child span { display: block; }
.home-challenge > div:first-child strong { font-size: 17px; }
.home-challenge > div:first-child span { margin-top: 5px; color: var(--muted); font-size: 11px; }
.home-challenge__percent { font-weight: 780; }
.home-challenge .progress { grid-column: 1 / -1; align-self: end; }
.home-management-link { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 60px; margin-top: 14px; border-top: 1px solid var(--line); color: var(--text); text-decoration: none; }
.home-management-link span { font-weight: 740; }
.home-management-link small { color: var(--muted); }
.home-activity-feed { margin-top: 46px; padding-top: 36px; border-top: 1px solid var(--line); }
.feed-item__challenge { display: inline-block; margin-top: 2px; color: var(--accent); font-size: 10px; font-weight: 700; text-decoration: none; }
.feed-more { margin-top: 8px; }
.feed-more > summary { min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px solid var(--line); color: var(--accent); font-size: 12px; font-weight: 740; cursor: pointer; list-style: none; }
.feed-more > summary::-webkit-details-marker { display: none; }
.feed-more > summary span { min-width: 24px; height: 24px; display: grid; place-items: center; border-radius: 8px; background: var(--surface-soft); color: var(--muted); font-size: 10px; }
.pwa-install-hint { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 18px; border: 1px solid color-mix(in srgb, var(--signal) 65%, var(--line)); border-radius: var(--control-radius); padding: 14px 16px; background: var(--signal-soft); }
.pwa-install-hint strong { font-size: 13px; }
.pwa-install-hint p { margin: 3px 0 0; color: var(--muted); font-size: 11px; }

/* Geographic route progress */
.route-map { grid-template-rows: auto auto minmax(260px, 1fr) auto; }
.route-map__toolbar { z-index: 3; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); padding: 9px 14px; background: var(--surface-soft); }
.route-map__toolbar p { margin: 0; color: var(--muted); font-size: 10px; }
.route-map__switch { margin: 0; }
.route-map__switch button { min-width: 78px; min-height: 38px; border: 0; border-radius: 9px; padding: 7px 12px; background: transparent; color: var(--muted); font-size: 12px; font-weight: 720; cursor: pointer; }
.route-map__switch button[aria-pressed="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 4px color-mix(in srgb, var(--accent) 8%, transparent); }
.route-map__entity-list { z-index: 3; display: flex; gap: 7px; overflow-x: auto; border-top: 1px solid var(--line); padding: 10px 12px; background: var(--surface); scrollbar-width: thin; }
.route-map__entity-list:empty { display: none; }
.route-map__entity-list button { min-width: 148px; min-height: 50px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 1px 10px; border: 1px solid var(--line); border-radius: 10px; padding: 7px 9px; background: var(--surface); color: var(--text); text-align: left; cursor: pointer; }
.route-map__entity-list button.is-current { border-color: color-mix(in srgb, var(--signal) 70%, var(--line)); background: var(--signal-soft); }
.route-map__entity-list button span { overflow: hidden; font-size: 11px; font-weight: 740; text-overflow: ellipsis; white-space: nowrap; }
.route-map__entity-list button small { grid-column: 1; overflow: hidden; color: var(--muted); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.route-map__entity-list button strong { grid-column: 2; grid-row: 1 / span 2; font-size: 11px; white-space: nowrap; }
.route-map .route-entity-tooltip strong,
.route-map .route-entity-tooltip small,
.route-map .route-entity-tooltip span { display: block; }
.route-map .route-entity-tooltip small { margin-top: 1px; color: var(--muted); font-size: 9px; font-weight: 600; }
.route-map .route-entity-tooltip span { margin-top: 3px; color: var(--accent); font-size: 10px; }
.leaderboard-team { display: block; margin: 1px 0 0 !important; color: var(--muted); font-size: 10px; font-weight: 560; }

@media (max-width: 767px) {
  .home-heading { align-items: stretch; flex-direction: column; gap: 20px; }
  .home-heading .button { width: 100%; }
  .home-challenge-list { grid-template-columns: 1fr; }
  .home-management-link { align-items: flex-start; flex-direction: column; gap: 2px; padding-block: 14px; }
  .pwa-install-hint { align-items: flex-start; flex-direction: column; }
  .route-map__toolbar { align-items: stretch; flex-direction: column; gap: 4px; }
  .route-map__switch { width: 100%; }
  .route-map__switch button { flex: 1; }
  .route-map__toolbar p { padding-inline: 4px; }
}