/* TrailCircle — outdoorsy, warm, community-driven design system. */

:root {
  /* Palette: earth tones, greens, warm beige, stone, soft blue */
  --forest:  #2e5d4b;
  --forest-d:#234a3c;
  --moss:    #4a7c59;
  --clay:    #c4703f;
  --sand:    #e9e2d3;
  --cream:   #f6f3ec;
  --stone:   #6f7468;
  --sky:     #5b86a5;
  --ink:     #20271f;

  --bg: var(--cream);
  --surface: #ffffff;
  --surface-2: #fbfaf6;
  --text: var(--ink);
  --muted: #6c7268;
  --border: rgba(32,39,31,0.12);
  --primary: var(--forest);
  --primary-contrast: #fdfdf9;
  --accent: var(--clay);

  --font-sans: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(32,39,31,.06), 0 6px 20px rgba(32,39,31,.06);
  --shadow-lg: 0 10px 40px rgba(32,39,31,.14);

  --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px; --space-5:24px; --space-6:40px;
  --maxw: 1120px;

  --good:#2f7d4f; --warn:#c4703f; --bad:#b14b3a; --info:#5b86a5;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font-sans); font-size: 16px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3 { line-height: 1.2; margin: 0 0 var(--space-3); letter-spacing: -0.01em; }
h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.08rem; }
p { margin: 0 0 var(--space-3); }
a { color: var(--forest); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: var(--space-5) var(--space-4); }
.container.narrow { max-width: 720px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.lead { font-size: 1.08rem; color: #3a4338; margin: var(--space-4) 0; }

/* ---------- Buttons ---------- */
.btn-primary, .btn-ghost, .btn-sm, .link-btn {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: var(--radius-sm);
  border: 1px solid transparent; transition: filter .15s, background .15s, border-color .15s;
}
.btn-primary { background: var(--primary); color: var(--primary-contrast); padding: 10px 18px; }
.btn-primary:hover { filter: brightness(1.08); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--forest); border-color: var(--border); padding: 10px 18px; }
.btn-ghost:hover { background: var(--surface-2); text-decoration: none; }
.btn-sm { padding: 7px 13px; font-size: .9rem; background: var(--surface-2); border-color: var(--border); color: var(--text); }
.btn-sm.btn-primary { background: var(--primary); color: var(--primary-contrast); border-color: transparent; }
.link-btn { background: none; border: none; color: var(--forest); padding: 6px 0; text-align: left; }
button:disabled { opacity: .6; cursor: default; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.header-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--space-4);
  display: flex; align-items: center; gap: var(--space-4); height: 62px; }
.logo { font-weight: 800; font-size: 1.2rem; color: var(--forest); display: flex; align-items: center; gap: 6px; }
.logo:hover { text-decoration: none; }
.logo-mark { font-size: 1.15em; }
#main-nav { display: flex; gap: var(--space-1); margin-left: var(--space-3); flex: 1; }
#main-nav a { color: var(--stone); font-weight: 600; padding: 8px 12px; border-radius: var(--radius-sm); font-size: .95rem; }
#main-nav a:hover { background: var(--surface-2); color: var(--forest); text-decoration: none; }
#main-nav a.active { color: var(--forest); background: var(--sand); }
.auth-slot { display: flex; align-items: center; gap: var(--space-2); margin-left: auto; }
.auth-user { display: flex; align-items: center; gap: 8px; color: var(--text); font-weight: 600; }
.auth-user:hover { text-decoration: none; }
.auth-name { font-size: .92rem; }
.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--forest); }

/* ---------- Avatars / pills / badges ---------- */
.avatar { border-radius: 50%; object-fit: cover; flex: none; }
.avatar-initials { display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; }
.pill-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--space-2); }
.pill { background: var(--sand); color: #5a5036; font-size: .76rem; font-weight: 600;
  padding: 3px 10px; border-radius: 999px; }
.kind-badge { background: rgba(46,93,75,.92); color: #fff; font-size: .72rem; font-weight: 700;
  padding: 4px 10px; border-radius: 999px; align-self: flex-start; letter-spacing: .02em; }
.diff-badge, .diff-tag { font-size: .74rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; color: #fff; }
.diff-easy { background: var(--good); } .diff-moderate { background: var(--clay); } .diff-hard { background: var(--bad); }
.diff-tag.diff-easy { background: #e3f0e6; color: #1f5e38; }
.diff-tag.diff-moderate { background: #f4e3d6; color: #8a4a22; }
.diff-tag.diff-hard { background: #f2dcd6; color: #8a2f22; }
.level-tag { background: var(--sand); padding: 2px 9px; border-radius: 999px; font-weight: 600; font-size: .85rem; }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(150deg, var(--forest) 0%, var(--forest-d) 55%, #1c3a2f 100%); color: #fff; }
.hero-inner { padding: var(--space-6) var(--space-4); text-align: center; }
.hero h1 { color: #fff; font-size: clamp(2rem, 5.5vw, 3.2rem); margin-bottom: var(--space-3); }
.hero-sub { color: rgba(255,255,255,.85); font-size: 1.1rem; max-width: 580px; margin: 0 auto var(--space-5); }
.hero-search { display: flex; gap: 8px; max-width: 540px; margin: 0 auto var(--space-4); }
.hero-search input { flex: 1; padding: 13px 16px; border-radius: 999px; border: none; font-size: 1rem; }
.hero-search .btn-primary { background: var(--clay); border-radius: 999px; padding: 13px 22px; }
.hero-cta { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; }
.hero-cta .btn-ghost { color: #fff; border-color: rgba(255,255,255,.5); }
.hero-cta .btn-ghost:hover { background: rgba(255,255,255,.12); }
.hero-cta .btn-primary { background: #fff; color: var(--forest); }

/* ---------- Page heads / sections ---------- */
.page-head { padding-bottom: var(--space-2); }
.page-head h1 { margin-bottom: 4px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.home-section { margin-bottom: var(--space-6); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: var(--space-4); }
.section-head h2 { margin: 0; }
.section-link { font-weight: 600; font-size: .9rem; white-space: nowrap; }
.home-split { display: grid; grid-template-columns: 1fr 340px; gap: var(--space-5); align-items: start; }
.stack { display: flex; flex-direction: column; gap: var(--space-3); }
.stack-lg { display: flex; flex-direction: column; gap: var(--space-6); }

/* ---------- Grids & cards ---------- */
.grid { display: grid; gap: var(--space-4); }
.cards-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.one-col, aside .cards-grid { grid-template-columns: 1fr; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
a.card { color: inherit; display: block; overflow: hidden; transition: transform .15s, box-shadow .15s; }
a.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); text-decoration: none; }
.card-hero { height: 150px; background: var(--moss) center/cover no-repeat; display: flex; align-items: flex-start; justify-content: flex-end; padding: var(--space-3); }
.card-body { padding: var(--space-3) var(--space-4) var(--space-4); }
.card-body h3 { margin-bottom: 4px; }
.meta-row { display: flex; flex-wrap: wrap; gap: var(--space-3); color: var(--muted); font-size: .85rem; margin-top: var(--space-2); align-items: center; }
.event-card { padding: var(--space-4); }
.event-date { color: var(--clay); font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: .03em; margin-bottom: 6px; }
.event-date.big { font-size: 1rem; }
.result-count { margin-bottom: var(--space-3); }

/* ---------- Detail heroes ---------- */
.detail-hero { background: var(--forest) center/cover no-repeat; color: #fff; min-height: 280px; display: flex; align-items: flex-end; }
.detail-hero-inner { width: 100%; padding-top: var(--space-6); padding-bottom: var(--space-5); }
.detail-hero h1 { color: #fff; }
.detail-hero p { color: rgba(255,255,255,.9); }
.detail-hero .hero-link { color: #fff; text-decoration: underline; }
.hero-stats { display: flex; gap: var(--space-4); margin: var(--space-3) 0; font-weight: 600; }
.join-btn.joined, .save-btn.saved, .hike-btn.done, .rsvp-btn.going { background: var(--moss); color: #fff; border-color: transparent; }
.trail-actions { display: flex; gap: var(--space-3); margin-top: var(--space-3); flex-wrap: wrap; }
.detail-hero .btn-ghost { color: #fff; border-color: rgba(255,255,255,.6); }

/* ---------- Stat row ---------- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: var(--space-3);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4); margin: var(--space-5) 0; box-shadow: var(--shadow); }
.stat { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 2px; }
.stat-icon { font-size: 1.2rem; }
.stat-val { font-size: 1.4rem; font-weight: 800; color: var(--forest); }
.stat-label { font-size: .78rem; color: var(--muted); }
.map-placeholder { background: repeating-linear-gradient(45deg, var(--sand), var(--sand) 14px, #efe9dc 14px, #efe9dc 28px);
  border: 1px dashed rgba(46,93,75,.4); border-radius: var(--radius); padding: var(--space-6); text-align: center;
  color: var(--forest); font-weight: 600; margin: var(--space-5) 0; }

/* ---------- Feed / posts ---------- */
.feed-list { display: flex; flex-direction: column; gap: var(--space-4); }
.post { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--space-4); box-shadow: var(--shadow); }
.post-head { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-3); }
.post-head-meta { display: flex; flex-direction: column; line-height: 1.3; }
.post-context a { color: var(--forest); font-weight: 600; }
.type-chip { margin-left: auto; background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px;
  padding: 3px 11px; font-size: .76rem; font-weight: 600; color: var(--stone); white-space: nowrap; }
.post-body { white-space: pre-wrap; }
.post-image { margin-top: var(--space-3); border-radius: var(--radius-sm); max-height: 460px; object-fit: cover; width: 100%; }
.post-actions { display: flex; gap: var(--space-2); margin-top: var(--space-3); padding-top: var(--space-2); border-top: 1px solid var(--border); }
.action-btn { background: none; border: none; cursor: pointer; font: inherit; color: var(--stone); font-weight: 600;
  padding: 6px 12px; border-radius: var(--radius-sm); display: flex; align-items: center; gap: 6px; }
.action-btn:hover { background: var(--surface-2); }
.action-btn.active { color: var(--bad); }
.comments-region { margin-top: var(--space-3); border-top: 1px solid var(--border); padding-top: var(--space-3); }
.comment-list { list-style: none; padding: 0; margin: 0 0 var(--space-3); display: flex; flex-direction: column; gap: var(--space-3); }
.comment { display: flex; gap: var(--space-2); }
.comment p { margin: 2px 0 0; }
.comment-form { display: flex; gap: 8px; }
.comment-form input { flex: 1; padding: 9px 12px; border-radius: 999px; border: 1px solid var(--border); font: inherit; }

/* ---------- Composer ---------- */
.composer { padding: var(--space-4); margin-bottom: var(--space-4); }
.composer-top { display: flex; gap: var(--space-3); }
.composer textarea { flex: 1; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 12px; font: inherit; resize: vertical; }
.composer-bottom { display: flex; align-items: center; gap: var(--space-3); margin-top: var(--space-3); }
.composer-bottom select { padding: 8px 10px; border-radius: var(--radius-sm); border: 1px solid var(--border); font: inherit; }
.composer-bottom .char-count { margin-left: auto; }
.signin-gate { padding: var(--space-4); text-align: center; }
.signin-gate p { margin-bottom: var(--space-3); }

/* ---------- Reports ---------- */
.report-item { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--info);
  border-radius: var(--radius-sm); padding: var(--space-3); }
.report-item.tone-good { border-left-color: var(--good); }
.report-item.tone-warn { border-left-color: var(--warn); }
.report-item.tone-bad { border-left-color: var(--bad); }
.report-badge { font-weight: 700; font-size: .85rem; }
.report-body p { margin: 4px 0 0; }
.report-form { display: flex; flex-direction: column; gap: 8px; padding: var(--space-4); margin-bottom: var(--space-3); }
.report-form select, .report-form input { padding: 9px 11px; border: 1px solid var(--border); border-radius: var(--radius-sm); font: inherit; }
.report-form-gate { padding: var(--space-3); text-align: center; }

/* ---------- Filters / chips ---------- */
.filter-bar { display: flex; gap: var(--space-3); margin-bottom: var(--space-5); flex-wrap: wrap; }
.filter-bar input, .filter-bar select { padding: 10px 13px; border: 1px solid var(--border); border-radius: var(--radius-sm); font: inherit; background: var(--surface); }
.filter-bar input[type=search] { flex: 1; min-width: 200px; }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: var(--space-5); }
.chip { background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 7px 14px; font: inherit; font-size: .88rem; font-weight: 600; color: var(--stone); cursor: pointer; }
.chip:hover { background: var(--surface-2); }
.chip.active { background: var(--forest); color: #fff; border-color: transparent; }

/* ---------- Profile ---------- */
.profile-header { display: flex; gap: var(--space-4); align-items: flex-start; padding: var(--space-5); margin-bottom: var(--space-4); }
.profile-id { flex: 1; }
.profile-id h1 { margin-bottom: 4px; }
.profile-id .bio { margin-top: var(--space-3); }
.profile-stats { margin-top: 0; }
.activity-item { display: block; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: var(--space-3); color: inherit; }
.activity-item:hover { text-decoration: none; background: var(--surface-2); }

/* ---------- Events detail ---------- */
.event-detail .event-hero { padding: var(--space-5); margin-bottom: var(--space-5); }
.back-link { display: inline-block; margin-bottom: var(--space-3); font-weight: 600; }
.rsvp-bar { display: flex; align-items: center; gap: var(--space-3); margin-top: var(--space-4); }
.roster { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: var(--space-3); }
.roster-item { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; color: inherit;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: var(--space-3); }
.roster-item:hover { text-decoration: none; background: var(--surface-2); }

/* ---------- Modal ---------- */
.modal-overlay { position: fixed; inset: 0; background: rgba(20,27,20,.5); display: flex; align-items: flex-start;
  justify-content: center; padding: var(--space-5) var(--space-4); z-index: 100; overflow-y: auto; }
.modal { background: var(--surface); border-radius: var(--radius); width: 100%; max-width: 560px; box-shadow: var(--shadow-lg);
  position: relative; margin: auto; }
.modal-content { padding: var(--space-5); }
.modal-close { position: absolute; top: 12px; right: 12px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 50%; width: 32px; height: 32px; cursor: pointer; font-size: 1rem; }
body.modal-open { overflow: hidden; }
.modal-form { display: flex; flex-direction: column; gap: var(--space-3); }
.modal-form label { display: flex; flex-direction: column; gap: 5px; font-weight: 600; font-size: .9rem; }
.modal-form input, .modal-form select, .modal-form textarea { padding: 10px 12px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font: inherit; font-weight: 400; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.modal-form fieldset { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: var(--space-3); }
.modal-form legend { font-weight: 600; font-size: .9rem; padding: 0 6px; }
.check-row { display: flex; flex-wrap: wrap; gap: 8px; }
.check-pill { display: inline-flex; align-items: center; gap: 6px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 999px; padding: 6px 12px; font-weight: 500; font-size: .85rem; cursor: pointer; }

/* ---------- Misc states ---------- */
.empty-state { color: var(--muted); text-align: center; padding: var(--space-5); background: var(--surface-2);
  border: 1px dashed var(--border); border-radius: var(--radius); }
.loading { color: var(--muted); padding: var(--space-5); text-align: center; }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border); border-top-color: var(--forest);
  border-radius: 50%; animation: spin .7s linear infinite; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }

#toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px); opacity: 0;
  background: var(--ink); color: #fff; padding: 12px 20px; border-radius: 999px; font-weight: 600; box-shadow: var(--shadow-lg);
  pointer-events: none; transition: opacity .25s, transform .25s; z-index: 200; max-width: 90vw; text-align: center; }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
#toast.bad { background: var(--bad); }
#toast.info { background: var(--sky); }

/* ---------- Footer ---------- */
.site-footer { background: var(--forest-d); color: rgba(255,255,255,.85); margin-top: var(--space-6); }
.site-footer .container { padding: var(--space-5) var(--space-4); }
.site-footer p { margin: 0 0 4px; }
.site-footer .muted { color: rgba(255,255,255,.6); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .home-split { grid-template-columns: 1fr; }
  .menu-toggle { display: block; order: 3; margin-left: auto; }
  .auth-slot { order: 2; }
  #main-nav { display: none; order: 4; flex-basis: 100%; flex-direction: column; gap: 2px; padding-bottom: var(--space-3); margin-left: 0; }
  body.nav-open #main-nav { display: flex; }
  .header-inner { flex-wrap: wrap; height: auto; padding-top: 10px; padding-bottom: 6px; }
}
@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
  .profile-header { flex-direction: column; align-items: center; text-align: center; }
  .auth-name { display: none; }
  .hero-cta { flex-direction: column; }
  .hero-cta a { width: 100%; }
}