:root {
  --blue: #003262;        /* Berkeley Blue */
  --blue-dark: #02224a;
  --gold: #FDB515;        /* California Gold */
  --gold-soft: #fff3d6;
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1a2332;
  --muted: #64748b;
  --line: #e2e8f0;
  --radius: 12px;
  font-size: 16px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
button { font-family: inherit; cursor: pointer; }
a { color: var(--blue); }
.boot { padding: 4rem; text-align: center; color: var(--muted); }

/* ---------- login ---------- */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, var(--blue) 0%, var(--blue-dark) 70%);
  padding: 1rem;
}
.login-card {
  background: var(--card); border-radius: 16px; padding: 2.5rem 2.25rem;
  max-width: 420px; width: 100%; text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
.login-card .bear { font-size: 3rem; }
.login-card h1 { font-size: 1.6rem; font-weight: 800; margin: .5rem 0 .25rem; color: var(--blue); }
.login-card .tagline { color: var(--muted); margin-bottom: 1.75rem; }
.google-btn {
  display: inline-flex; align-items: center; gap: .6rem;
  background: var(--blue); color: #fff; border: none; border-radius: 10px;
  padding: .8rem 1.4rem; font-size: 1rem; font-weight: 600;
  transition: background .15s;
}
.google-btn:hover { background: var(--blue-dark); }
.google-btn svg { background: #fff; border-radius: 4px; padding: 2px; }
.login-note { margin-top: 1.25rem; font-size: .8rem; color: var(--muted); }
.login-error {
  margin-top: 1rem; background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca;
  border-radius: 8px; padding: .6rem .8rem; font-size: .85rem;
}

/* ---------- header ---------- */
header {
  background: var(--blue); color: #fff; position: sticky; top: 0; z-index: 20;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.header-inner {
  max-width: 760px; margin: 0 auto; padding: .7rem 1rem;
  display: flex; align-items: center; gap: .75rem;
}
.logo { font-weight: 800; font-size: 1.15rem; letter-spacing: -.02em; }
.logo .gold { color: var(--gold); }
.header-spacer { flex: 1; }
.share-btn {
  background: var(--gold); color: var(--blue-dark); border: none; border-radius: 8px;
  padding: .5rem .9rem; font-weight: 700; font-size: .9rem;
}
.share-btn:hover { filter: brightness(1.06); }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--gold-soft); object-fit: cover; }
.signout { background: none; border: none; color: rgba(255,255,255,.7); font-size: .8rem; }
.signout:hover { color: #fff; }

/* ---------- controls ---------- */
main { max-width: 760px; margin: 0 auto; padding: 1.25rem 1rem 4rem; }
.controls { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: 1rem; }
.sort-tabs { display: flex; background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.sort-tabs button {
  border: none; background: none; padding: .45rem .9rem; font-size: .85rem; font-weight: 600; color: var(--muted);
}
.sort-tabs button.active { background: var(--blue); color: #fff; }
.chip {
  border: 1px solid var(--line); background: var(--card); border-radius: 999px;
  padding: .35rem .75rem; font-size: .8rem; font-weight: 500; color: var(--muted);
}
.chip.active { background: var(--gold); border-color: var(--gold); color: var(--blue-dark); font-weight: 700; }

/* ---------- feed ---------- */
.empty { text-align: center; color: var(--muted); padding: 3rem 1rem; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem 1.1rem; margin-bottom: .8rem; display: flex; gap: .9rem;
}
.vote {
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  border: 1px solid var(--line); background: #fff; border-radius: 10px;
  padding: .5rem .6rem; height: fit-content; min-width: 52px; gap: .1rem;
}
.vote .tri { font-size: .9rem; color: var(--muted); }
.vote .count { font-weight: 800; font-size: 1rem; }
.vote.voted { background: var(--gold-soft); border-color: var(--gold); }
.vote.voted .tri { color: var(--blue); }
.card-body { flex: 1; min-width: 0; }
.card-title { font-size: 1.05rem; font-weight: 700; }
.card-title a { color: var(--text); text-decoration: none; }
.card-title a:hover { color: var(--blue); text-decoration: underline; }
.card-tagline { color: var(--muted); font-size: .92rem; margin: .15rem 0 .5rem; }
.card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; font-size: .78rem; color: var(--muted); }
.tag-pill { background: var(--bg); border: 1px solid var(--line); border-radius: 999px; padding: .15rem .6rem; font-weight: 600; }
.collab-badge {
  background: var(--gold-soft); border: 1px solid var(--gold); color: var(--blue-dark);
  border-radius: 999px; padding: .15rem .6rem; font-weight: 700;
}
.meta-author { display: flex; align-items: center; gap: .35rem; }
.meta-author img { width: 18px; height: 18px; border-radius: 50%; }
.linkish { background: none; border: none; color: var(--muted); font-size: .78rem; padding: 0; }
.linkish:hover { color: var(--blue); }
.danger { color: #b91c1c; }

/* ---------- comments ---------- */
.comments { margin-top: .8rem; border-top: 1px solid var(--line); padding-top: .8rem; }
.comment { display: flex; gap: .5rem; margin-bottom: .6rem; font-size: .88rem; }
.comment img { width: 24px; height: 24px; border-radius: 50%; margin-top: 2px; }
.comment .who { font-weight: 600; font-size: .8rem; }
.comment .when { color: var(--muted); font-weight: 400; margin-left: .35rem; font-size: .75rem; }
.comment-form { display: flex; gap: .5rem; margin-top: .5rem; }
.comment-form input {
  flex: 1; border: 1px solid var(--line); border-radius: 8px; padding: .5rem .7rem; font: inherit; font-size: .88rem;
}
.comment-form button {
  background: var(--blue); color: #fff; border: none; border-radius: 8px; padding: .5rem .9rem; font-weight: 600; font-size: .85rem;
}

/* ---------- modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(2,20,40,.55); z-index: 50;
  display: flex; align-items: center; justify-content: center; padding: 1rem;
}
.modal {
  background: var(--card); border-radius: 16px; width: 100%; max-width: 520px;
  padding: 1.5rem; max-height: 92vh; overflow-y: auto;
}
.modal h2 { color: var(--blue); font-size: 1.25rem; margin-bottom: 1rem; }
.field { margin-bottom: .9rem; }
.field label { display: block; font-size: .82rem; font-weight: 600; margin-bottom: .3rem; }
.field input[type=text], .field input[type=url], .field select, .field textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: .55rem .7rem;
  font: inherit; font-size: .92rem; background: #fff;
}
.field .hint { font-size: .75rem; color: var(--muted); margin-top: .2rem; }
.check-row { display: flex; align-items: center; gap: .5rem; font-size: .9rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: .6rem; margin-top: 1.2rem; }
.btn-secondary { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: .55rem 1rem; font-weight: 600; }
.btn-primary { background: var(--blue); color: #fff; border: none; border-radius: 8px; padding: .55rem 1.2rem; font-weight: 700; }
.form-error { color: #b91c1c; font-size: .85rem; margin-top: .5rem; }

footer { text-align: center; color: var(--muted); font-size: .75rem; padding: 2rem 0; }
@media (max-width: 520px) {
  .card { padding: .8rem; gap: .6rem; }
  .header-inner { padding: .6rem .75rem; }
}

/* ---------- content sharing (v0.2) ---------- */
.file-row { display: flex; flex-wrap: wrap; gap: .4rem; margin: .1rem 0 .5rem; }
.file-chip {
  background: #eef4fb; border: 1px solid #c9dcf0; color: var(--blue);
  border-radius: 8px; padding: .3rem .65rem; font-size: .8rem; font-weight: 600;
}
.file-chip:hover { background: #dfecfa; }
.find-badge {
  background: #f1f5f9; border: 1px solid var(--line); color: var(--muted);
  border-radius: 999px; padding: .15rem .6rem; font-weight: 600;
}
.modal-wide { max-width: 760px; }
.doc-loading { color: var(--muted); text-align: center; padding: 2rem; }
.doc-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1rem; }
.doc-header h2 { margin-bottom: .1rem; }
.doc-sub { color: var(--muted); font-size: .9rem; }
.doc-file { border: 1px solid var(--line); border-radius: 10px; margin-bottom: 1rem; overflow: hidden; }
.doc-file-bar {
  display: flex; justify-content: space-between; align-items: center; gap: .5rem;
  background: var(--bg); border-bottom: 1px solid var(--line); padding: .5rem .8rem;
}
.doc-filename { font-weight: 700; font-size: .88rem; }
.doc-actions { display: flex; gap: .4rem; }
.btn-sm { padding: .3rem .7rem; font-size: .8rem; }
.doc-pre {
  padding: .8rem 1rem; font-size: .8rem; line-height: 1.45; overflow-x: auto;
  white-space: pre-wrap; word-break: break-word; max-height: 420px; overflow-y: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.md-body { padding: .9rem 1.1rem; font-size: .9rem; max-height: 480px; overflow-y: auto; }
.md-body h1 { font-size: 1.25rem; color: var(--blue); margin: .6rem 0 .4rem; }
.md-body h2 { font-size: 1.1rem; color: var(--blue); margin: .7rem 0 .35rem; }
.md-body h3 { font-size: .98rem; margin: .6rem 0 .3rem; }
.md-body p, .md-body ul, .md-body ol { margin-bottom: .55rem; }
.md-body ul, .md-body ol { padding-left: 1.3rem; }
.md-body code {
  background: var(--bg); border: 1px solid var(--line); border-radius: 4px;
  padding: .05rem .3rem; font-size: .82em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.md-body pre { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: .7rem .9rem; overflow-x: auto; margin-bottom: .6rem; }
.md-body pre code { background: none; border: none; padding: 0; }
.md-body table { border-collapse: collapse; margin-bottom: .6rem; display: block; overflow-x: auto; }
.md-body th, .md-body td { border: 1px solid var(--line); padding: .3rem .6rem; font-size: .85rem; }
.md-body blockquote { border-left: 3px solid var(--gold); padding-left: .8rem; color: var(--muted); margin-bottom: .55rem; }
.md-body hr { border: none; border-top: 1px solid var(--line); margin: .8rem 0; }
.pending-wrap { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .5rem; }
.pending-chip {
  display: inline-flex; align-items: center; gap: .35rem;
  background: var(--gold-soft); border: 1px solid var(--gold); border-radius: 8px;
  padding: .3rem .6rem; font-size: .8rem; font-weight: 600;
}
.pending-size { color: var(--muted); font-weight: 400; }
.pending-x { background: none; border: none; color: #b91c1c; font-size: .8rem; padding: 0 .1rem; }
.paste-details { margin-top: .6rem; font-size: .85rem; }
.paste-details summary { cursor: pointer; color: var(--blue); font-weight: 600; }
.paste-details textarea { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: .55rem .7rem; font: inherit; font-size: .85rem; }
.paste-details input { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: .45rem .7rem; font: inherit; font-size: .85rem; }
.radio-row { display: flex; flex-direction: column; gap: .35rem; }
.radio-opt { display: flex; align-items: center; gap: .45rem; font-size: .88rem; font-weight: 400; }

/* ---------- one-paste share (v0.3) ---------- */
.kit-box {
  background: linear-gradient(135deg, #fff8e8, #fef3d3);
  border: 1px solid var(--gold); border-radius: 10px;
  padding: .8rem .9rem; margin-bottom: 1.1rem;
}
.kit-title { font-weight: 800; font-size: .9rem; color: var(--blue-dark); margin-bottom: .25rem; }
.kit-box textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 8px;
  padding: .55rem .7rem; font: inherit; font-size: .82rem; margin-top: .5rem; background: #fff;
}
.kit-actions { display: flex; align-items: center; gap: .6rem; margin-top: .5rem; }
.kit-status { font-size: .8rem; color: var(--blue); font-weight: 600; }
.kit-box .linkish { color: var(--blue); text-decoration: underline; font-size: inherit; }
.modal.dragging { outline: 3px dashed var(--gold); outline-offset: -6px; }

/* ---------- problem posts (v0.3) ---------- */
.problem-badge {
  background: #fdf0e3; border: 1px solid #f0b989; color: #92400e;
  border-radius: 999px; padding: .15rem .6rem; font-weight: 700;
}
.card-problem { border-left: 4px solid #f0a35e; }

/* ---------- remix (v0.3.1) ---------- */
.remix-badge {
  background: #eef9f1; border: 1px solid #a7d9b4; color: #166534;
  border-radius: 999px; padding: .15rem .6rem; font-weight: 600;
}
.remix-note {
  background: #eef9f1; border: 1px solid #a7d9b4; border-radius: 10px;
  padding: .6rem .8rem; font-size: .85rem; margin-bottom: 1rem;
}

/* ---------- front-page hero + minimal form (v0.4) ---------- */
.hero { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; margin-bottom: 1.1rem; }
@media (max-width: 620px) { .hero { grid-template-columns: 1fr; } }
.hero-panel {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: .8rem .9rem;
}
.hero-head { font-weight: 800; font-size: .95rem; color: var(--blue); margin-bottom: .5rem; }
.hero-row { display: flex; align-items: center; gap: .5rem; padding: .25rem 0; }
.hero-vote {
  border: 1px solid var(--line); background: #fff; border-radius: 6px;
  padding: .15rem .5rem; font-size: .75rem; font-weight: 700; color: var(--muted); white-space: nowrap;
}
.hero-vote.voted { background: var(--gold-soft); border-color: var(--gold); color: var(--blue); }
.hero-title { font-size: .88rem; font-weight: 600; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hero-author { font-size: .75rem; color: var(--muted); }
.hero-empty { font-size: .82rem; color: var(--muted); padding: .3rem 0 .5rem; }
.quick-add { display: flex; gap: .4rem; margin-top: .5rem; }
.quick-add input {
  flex: 1; border: 1px solid var(--line); border-radius: 8px; padding: .45rem .65rem;
  font: inherit; font-size: .85rem;
}
.quick-add button {
  background: var(--blue); color: #fff; border: none; border-radius: 8px;
  padding: .45rem .8rem; font-weight: 700; font-size: .82rem;
}
.wip-badge {
  background: #eef2ff; border: 1px solid #b6c3f0; color: #3730a3;
  border-radius: 999px; padding: .15rem .6rem; font-weight: 700;
}
.big-input {
  width: 100%; border: 2px solid var(--line); border-radius: 10px; padding: .7rem .8rem;
  font: inherit; font-size: 1.05rem; font-weight: 600;
}
.big-input:focus { border-color: var(--gold); outline: none; }
.more-options { margin: .3rem 0 .5rem; font-size: .9rem; }
.more-options summary { cursor: pointer; color: var(--blue); font-weight: 600; font-size: .85rem; }
#smart-paste {
  width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: .55rem .7rem;
  font: inherit; font-size: .85rem; margin-top: .4rem;
}
#file-input { font-size: .8rem; }

/* ---------- reactions + edit (v0.5) ---------- */
.react-row { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem; margin-top: .45rem; }
.react-btn {
  border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: .25rem .7rem; font-size: .78rem; font-weight: 600; color: var(--muted);
}
.react-btn:hover { border-color: var(--gold); color: var(--blue); }
.react-btn.active { background: var(--gold-soft); border-color: var(--gold); color: var(--blue-dark); font-weight: 700; }
.helpers { font-size: .76rem; color: #166534; font-weight: 600; }
.hero-helpers { font-size: .72rem; color: #166534; font-weight: 700; white-space: nowrap; }
.qa-attach {
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: .45rem .55rem; font-size: .8rem;
}
.qa-attach:hover { border-color: var(--gold); }
#edit-paste {
  width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: .55rem .7rem;
  font: inherit; font-size: .85rem; margin-top: .4rem;
}
#edit-file-input { font-size: .8rem; margin-top: .3rem; }

/* ---------- meetings banner (v0.6) ---------- */
.meet-banner {
  background: var(--blue); color: #fff; border-radius: var(--radius);
  padding: .6rem .9rem; margin-bottom: .8rem; font-size: .85rem;
  display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; justify-content: space-between;
}
.meet-banner a { color: var(--gold); }
.meet-banner .linkish { color: rgba(255,255,255,.85); text-decoration: underline; font-size: .8rem; }
.meet-banner .linkish:hover { color: #fff; }
.meet-banner .linkish.danger { color: #fca5a5; }
.meet-main { min-width: 0; }
.meet-actions { display: flex; gap: .7rem; align-items: center; white-space: nowrap; }
.meet-cal {
  background: var(--gold); color: var(--blue-dark) !important; text-decoration: none;
  border-radius: 7px; padding: .3rem .7rem; font-weight: 700; font-size: .8rem;
}
.meet-empty { background: #eef2f7; color: var(--muted); }
.meet-empty .linkish { color: var(--blue); }

/* ---------- resources tab + deep links (v0.7) ---------- */
.views { display: flex; gap: .15rem; background: rgba(255,255,255,.12); border-radius: 9px; padding: .18rem; margin-left: .6rem; }
.views button { border: none; background: none; color: rgba(255,255,255,.8); font-size: .82rem; font-weight: 600; padding: .3rem .7rem; border-radius: 7px; }
.views button.active { background: var(--gold); color: var(--blue-dark); font-weight: 700; }
.res-intro { background: var(--gold-soft); border: 1px solid var(--gold); border-radius: var(--radius); padding: .6rem .9rem; font-size: .85rem; margin-bottom: .9rem; }
@keyframes flashfade { 0% { box-shadow: 0 0 0 3px var(--gold); } 100% { box-shadow: 0 0 0 3px transparent; } }
.card.flash { animation: flashfade 2.5s ease-out 1; }
@media (max-width: 560px) { .views { margin-left: .2rem; } .views button { padding: .3rem .5rem; font-size: .75rem; } }

/* ---------- awards (v0.8) ---------- */
.award-badge {
  background: linear-gradient(135deg, #fff3d6, #ffe49a); border: 1px solid var(--gold);
  color: var(--blue-dark); border-radius: 999px; padding: .15rem .6rem; font-weight: 800;
}

/* ---------- leaderboard (v0.9) ---------- */
.board-wrap { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; overflow-x: auto; }
.board { width: 100%; border-collapse: collapse; font-size: .88rem; }
.board th { text-align: left; font-size: .75rem; color: var(--muted); padding: .35rem .6rem; border-bottom: 2px solid var(--line); white-space: nowrap; }
.board td { padding: .5rem .6rem; border-bottom: 1px solid var(--line); }
.board tbody tr:last-child td { border-bottom: none; }
.board-rank { font-size: 1rem; width: 2rem; }
.board-name { font-weight: 700; }
.board-impact { font-weight: 800; color: var(--blue); }

/* ---------- hearts (v0.10.2) ---------- */
.vote .heart { font-size: 1rem; line-height: 1; }