/* ============================================================
   GYM COACH — Swiss × Modern dark design system
   Grid, strong type, one accent, big tactile controls, motion.
   ============================================================ */

:root {
  --bg: #08090b;
  --surface: #121417;
  --surface-2: #1a1d22;
  --surface-3: #23272e;
  --line: rgba(255,255,255,0.09);
  --line-strong: rgba(255,255,255,0.16);
  --text: #f5f7fa;
  --muted: #8b93a1;
  --faint: #5b626e;
  --accent: #c8f14a;         /* single signal colour */
  --accent-ink: #10160a;     /* text on accent */
  --danger: #ff6b6b;
  --warn: #ffcf5c;
  --ok: #5fe0a0;
  --r: 16px;
  --r-sm: 11px;
  --nav-h: 72px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --maxw: 540px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; background: var(--bg); }
body {
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, "Inter", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
::selection { background: var(--accent); color: var(--accent-ink); }

/* ---------- layout ---------- */
.view {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 20px calc(var(--nav-h) + 36px + env(safe-area-inset-bottom));
  min-height: 100vh;
}
.hero { margin-bottom: 22px; }
.row-head { display: flex; align-items: center; gap: 14px; }

/* ---------- typography ---------- */
h1 {
  font-size: clamp(1.9rem, 7vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.04;
  margin: 0 0 8px;
}
h3 { font-size: 1.02rem; font-weight: 700; letter-spacing: -0.02em; margin: 0; }
p { margin: 8px 0; }
.muted { color: var(--muted); }
.small { font-size: 0.82rem; }
.eyebrow, .label, .form label > span:first-child {
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--faint);
}
.eyebrow { display: block; margin-bottom: 6px; }
b, strong { font-weight: 700; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }
.disclaimer { margin-top: 16px; color: var(--faint); }

/* ---------- cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 20px;
  margin: 14px 0;
}
.card.ghost { background: transparent; border-style: dashed; border-color: var(--line-strong); }
.card.rest { background: var(--surface); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }

/* ---------- chips / tags ---------- */
.chip {
  font-size: 0.66rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--muted); background: var(--surface-2);
  border: 1px solid var(--line); padding: 5px 10px; border-radius: 999px; white-space: nowrap;
}
.chip.green { color: var(--ok); border-color: rgba(95,224,160,0.35); background: rgba(95,224,160,0.08); }
.chip.amber { color: var(--warn); border-color: rgba(255,207,92,0.35); background: rgba(255,207,92,0.08); }
.chip.red { color: var(--danger); border-color: rgba(255,107,107,0.35); background: rgba(255,107,107,0.08); }

/* ---------- big stat ---------- */
.bignum { font-size: 3rem; font-weight: 800; letter-spacing: -0.045em; line-height: 1; font-variant-numeric: tabular-nums; }
.bignum span { font-size: 0.95rem; font-weight: 500; color: var(--muted); margin-left: 6px; letter-spacing: 0; }

.macros { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 16px; }
.macros > div { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 12px 6px; text-align: center; }
.macros b { display: block; font-size: 1.15rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.macros span { font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--faint); }

.link-row { color: var(--accent); font-weight: 700; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; margin-top: 14px; display: inline-flex; align-items: center; gap: 6px; }

/* ---------- exercise rows ---------- */
.ex-list { display: flex; flex-direction: column; }
.ex-row { padding: 15px 0; border-top: 1px solid var(--line); }
.ex-row:first-child { border-top: none; }
.ex-top { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.ex-top b { font-size: 1.02rem; }
.setrep { color: var(--accent); font-weight: 800; white-space: nowrap; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.ex-sub { margin-top: 3px; }
.cuelink { color: var(--accent); font-weight: 600; }
.hint { margin-top: 10px; font-size: 0.85rem; color: var(--text); background: var(--surface-2); border: 1px solid var(--line); border-left: 2px solid var(--accent); padding: 10px 12px; border-radius: var(--r-sm); }
.cues ul { margin: 10px 0 2px; padding-left: 18px; color: var(--muted); font-size: 0.85rem; }
.cues li { margin: 4px 0; }

/* ---------- tick lists ---------- */
ul.ticks { list-style: none; margin: 10px 0 0; padding: 0; }
ul.ticks li { position: relative; padding: 7px 0 7px 26px; font-size: 0.92rem; border-top: 1px solid var(--line); }
ul.ticks li:first-child { border-top: none; }
ul.ticks li::before { content: ""; position: absolute; left: 0; top: 13px; width: 12px; height: 8px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
ul.ticks.cross li::before { border: none; left: 2px; top: 10px; width: 10px; height: 10px; background:
  linear-gradient(45deg, transparent 44%, var(--danger) 44%, var(--danger) 56%, transparent 56%),
  linear-gradient(-45deg, transparent 44%, var(--danger) 44%, var(--danger) 56%, transparent 56%);
  transform: none; }

/* ---------- week strip ---------- */
.weekstrip { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 8px; }
.wday { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 10px 2px; text-align: center; min-height: 62px; display: flex; flex-direction: column; justify-content: center; gap: 4px; }
.wday .d { font-size: 0.62rem; color: var(--faint); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700; }
.wday .w { font-size: 0.66rem; line-height: 1.1; color: var(--muted); }
.wday.train { background: rgba(200,241,74,0.10); border-color: rgba(200,241,74,0.28); }
.wday.train .w { color: var(--accent); font-weight: 700; }
.wday.today { outline: 2px solid var(--accent); outline-offset: -1px; }

/* ---------- buttons ---------- */
.btn {
  -webkit-appearance: none; appearance: none;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--line-strong); background: var(--surface-2); color: var(--text);
  min-height: 54px; padding: 0 20px; border-radius: var(--r-sm);
  font-size: 0.98rem; font-weight: 700; letter-spacing: -0.01em; cursor: pointer;
  flex: 1 1 auto; transition: transform .12s var(--ease), background .18s, border-color .18s, opacity .18s;
}
.btn:active { transform: scale(0.975); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn.primary:active { background: #bce53f; }
.btn.ok { background: rgba(95,224,160,0.14); color: var(--ok); border-color: rgba(95,224,160,0.32); }
.btn.danger { background: transparent; color: var(--danger); border-color: rgba(255,107,107,0.4); }
.btn.big { width: 100%; min-height: 60px; font-size: 1.05rem; }
.btn.block { width: 100%; }
.btnrow { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.back {
  background: var(--surface-2); border: 1px solid var(--line); color: var(--text);
  width: 42px; height: 42px; min-width: 42px; border-radius: var(--r-sm); font-size: 1.3rem; line-height: 1;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center; padding: 0;
}
.back:active { transform: scale(0.94); }

/* ---------- forms ---------- */
.form label, label.card { display: block; margin-bottom: 16px; }
.form label > span:first-child { display: block; margin-bottom: 8px; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
input, select, textarea {
  width: 100%;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--line-strong); border-radius: var(--r-sm);
  min-height: 54px; padding: 14px 16px; font-size: 1.02rem; font-family: inherit;
  transition: border-color .16s, box-shadow .16s, background .16s;
}
input::placeholder { color: var(--faint); }
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200,241,74,0.18); background: var(--surface-3);
}
select {
  -webkit-appearance: none; appearance: none; cursor: pointer;
  padding-right: 44px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23c8f14a' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center;
}
select option { background: var(--surface-2); color: var(--text); }

/* logger set rows */
.setrow { display: flex; align-items: center; gap: 10px; margin: 10px 0; }
.setrow .setno { width: 54px; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--faint); font-weight: 700; }
.setrow input { margin: 0; text-align: center; }
.setrow .x { color: var(--faint); }
.addrow { display: flex; gap: 10px; margin: 14px 0; }
.addrow input { flex: 1; }
.addrow .btn { flex: 0 0 auto; min-width: 96px; }

/* ---------- tables ---------- */
.tablewrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-top: 10px; }
table.food { width: 100%; border-collapse: collapse; font-size: 0.84rem; }
table.food th { text-align: left; color: var(--faint); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.66rem; padding: 8px 10px; border-bottom: 1px solid var(--line-strong); white-space: nowrap; }
table.food td { padding: 9px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; font-variant-numeric: tabular-nums; }
table.food td.unit { color: var(--muted); }
table.mini-calc { width: 100%; margin-top: 14px; font-size: 0.92rem; }
table.mini-calc td { padding: 9px 0; border-bottom: 1px solid var(--line); }
table.mini-calc tr:last-child td { border-bottom: none; }
table.mini-calc td:last-child { text-align: right; font-variant-numeric: tabular-nums; }

.spark { width: 100%; height: 64px; margin: 10px 0; }
.spacer { height: 24px; }

/* ---------- bottom nav ---------- */
.nav {
  position: fixed; left: 0; right: 0; bottom: 0;
  height: calc(var(--nav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  border-top: 1px solid var(--line);
  display: flex; z-index: 20; max-width: var(--maxw); margin: 0 auto;
}
.nav button {
  flex: 1; background: none; border: none; color: var(--faint);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 700;
  cursor: pointer; padding: 8px 0; transition: color .18s;
}
.nav button svg { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s var(--ease); }
.nav button.active { color: var(--accent); }
.nav button.active svg { transform: translateY(-1px) scale(1.06); }

/* ---------- food scan ---------- */
.scan-cta { margin: 6px 0 8px; }
.scan-cta-sm { width: 100%; margin: 4px 0; }
.camwrap { position: relative; border-radius: var(--r); overflow: hidden; margin-bottom: 14px; background: #000; }
.camwrap video, .camwrap #scanReader { width: 100%; display: block; }
.scanframe { position: absolute; inset: 22% 12%; border: 2px solid var(--accent); border-radius: var(--r-sm); box-shadow: 0 0 0 100vmax rgba(0,0,0,0.4); }
.result .phead { display: flex; gap: 14px; align-items: flex-start; }
.result .pimg { width: 66px; height: 66px; object-fit: contain; border-radius: var(--r-sm); background: #fff; flex: 0 0 auto; }
.badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.nutri, .nova { font-size: 0.64rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em; padding: 4px 9px; border-radius: 6px; }
.nova { background: var(--surface-3); color: var(--muted); }
.n-a { background: #2e7d32; color: #fff; } .n-b { background: #7cb342; color: #10160a; }
.n-c { background: #f4c430; color: #2a2200; } .n-d { background: #fb8c00; color: #fff; }
.n-e { background: #e5484d; color: #fff; }
.verdict {
  margin: 16px 0; padding: 16px; border-radius: var(--r-sm); font-weight: 800; font-size: 1.05rem;
  text-align: center; text-transform: uppercase; letter-spacing: 0.02em;
  border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; gap: 10px;
}
.verdict::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: currentColor; }
.verdict.green { background: rgba(95,224,160,0.10); color: var(--ok); border-color: rgba(95,224,160,0.3); }
.verdict.amber { background: rgba(255,207,92,0.10); color: var(--warn); border-color: rgba(255,207,92,0.3); }
.verdict.red { background: rgba(255,107,107,0.10); color: var(--danger); border-color: rgba(255,107,107,0.3); }
.fitday { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 12px 14px; font-size: 0.86rem; margin: 12px 0; }
.nutbox { margin-top: 10px; }
.nutbox summary { cursor: pointer; color: var(--accent); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 700; padding: 8px 0; }
.srow { cursor: pointer; }

/* ---------- sync / account card ---------- */
.sync-status { display: inline-flex; align-items: center; gap: 8px; font-size: 0.78rem; color: var(--muted); }
.sync-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--faint); }
.sync-dot.on { background: var(--ok); box-shadow: 0 0 0 3px rgba(95,224,160,0.18); }
.sync-dot.syncing { background: var(--warn); animation: pulse 1s infinite; }
.sync-dot.err { background: var(--danger); }
.codebox {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--surface-2); border: 1px solid var(--line-strong); border-radius: var(--r-sm);
  padding: 14px 16px; margin: 12px 0; font-variant-numeric: tabular-nums;
  font-size: 1.25rem; font-weight: 800; letter-spacing: 0.14em; font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

/* ---------- animations ---------- */
@keyframes viewin { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes pulse { 50% { opacity: 0.4; } }
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.view.anim { animation: viewin .28s var(--ease) both; }
.view.anim > * { animation: rise .42s var(--ease) both; }
.view.anim > *:nth-child(1) { animation-delay: .02s; }
.view.anim > *:nth-child(2) { animation-delay: .06s; }
.view.anim > *:nth-child(3) { animation-delay: .10s; }
.view.anim > *:nth-child(4) { animation-delay: .14s; }
.view.anim > *:nth-child(5) { animation-delay: .18s; }
.view.anim > *:nth-child(n+6) { animation-delay: .21s; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}