:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #334155;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --danger: #ef4444;
  --ok: #10b981;
  --over: #f59e0b;
  --met: #10b981;
  --border: #334155;
  --radius: 12px;
  --tap: 44px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-2: #f1f5f9;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px 16px 96px;
}

h1 { font-size: 1.6rem; margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin: 24px 0 8px; color: var(--muted); font-weight: 600; }

.muted { color: var(--muted); }

/* ---- Top bar ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  padding-top: max(12px, env(safe-area-inset-top));
}

.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.topbar .links {
  display: flex;
  gap: 14px;
  align-items: center;
}

.topbar a, .topbar .link {
  color: var(--muted);
  text-decoration: none;
  background: none;
  border: 0;
  font: inherit;
  padding: 4px;
  cursor: pointer;
}

.topbar a:hover, .topbar .link:hover { color: var(--text); }

/* ---- Cards ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin: 12px 0;
}

.card.login { max-width: 360px; margin: 20vh auto; }

/* ---- Forms ---- */
label {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 12px;
}

input[type="text"], input[type="password"], input[type="number"], input[type="search"] {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 12px;
  font-size: 1rem;
  min-height: var(--tap);
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  appearance: none;
  -webkit-appearance: none;
}

input:focus { outline: 2px solid var(--primary); outline-offset: -1px; }

button, .cancel {
  display: inline-block;
  min-height: var(--tap);
  padding: 10px 18px;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
}

button.primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
button.primary:hover { background: var(--primary-hover); }

button.danger, .danger { color: var(--danger); }

button.icon {
  min-width: var(--tap);
  padding: 8px;
  font-size: 1.1rem;
  background: transparent;
  border: 1px solid transparent;
}
button.icon:hover { border-color: var(--border); }

.cancel {
  background: transparent;
  margin-left: 8px;
  color: var(--muted);
}

.stacked > * { margin-bottom: 12px; }
.stacked button.primary { width: 100%; }

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

form.inline { display: inline; }

/* ---- Today / stats ---- */
.day-title { margin-bottom: 4px; }
.day-title .day-sub {
  display: block;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--muted);
  margin-top: 2px;
}

.stats {
  display: grid;
  gap: 12px;
  margin: 12px 0 24px;
}
@media (min-width: 480px) {
  .stats { grid-template-columns: 1fr 1fr; }
}

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.stat-label { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }

.stat-numbers .big { font-size: 2.2rem; font-weight: 700; }
.stat-numbers .goal { color: var(--muted); margin-left: 6px; }

.bar {
  height: 8px;
  background: var(--surface-2);
  border-radius: 4px;
  overflow: hidden;
  margin: 10px 0 6px;
}
.bar-fill { height: 100%; transition: width .3s; }
.bar-fill.cal { background: var(--primary); }
.bar-fill.prot { background: var(--ok); }

.stat.over .bar-fill.cal { background: var(--over); }
.stat.over .stat-numbers .big { color: var(--over); }
.stat.met .stat-numbers .big { color: var(--met); }

.stat-sub { color: var(--muted); font-size: 0.9rem; }

/* ---- Entries list ---- */
.entries, .foods, .days, .food-results {
  list-style: none;
  padding: 0;
  margin: 0;
}

.entry, .food {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
}

.entry-main, .food > div:first-child { flex: 1; min-width: 0; }
.entry-name, .food-name { font-weight: 600; }
.entry-meta { color: var(--muted); font-size: 0.88rem; }

.entry-actions { display: flex; gap: 4px; }

/* ---- Food search results ---- */
.food-results li { margin-bottom: 6px; }

.food-pick {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  width: 100%;
  text-align: left;
  padding: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.food-pick:hover { border-color: var(--primary); }

.food-pick .food-name { font-weight: 600; }
.food-pick .food-macros { color: var(--muted); font-size: 0.85rem; }

.chosen-head { display: flex; flex-direction: column; gap: 2px; margin-bottom: 12px; }
.chosen { border-color: var(--primary); }

/* ---- History ---- */
.days li { margin-bottom: 6px; }
.day-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
}
.day-row:hover { border-color: var(--primary); }
.day-date { font-weight: 600; }
.day-stats { color: var(--muted); font-size: 0.9rem; }
.day-stats .over { color: var(--over); }
.day-stats .met { color: var(--met); }

/* ---- Flash ---- */
.flashes { margin: 8px 0; }
.flash {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 6px;
  font-size: 0.95rem;
}
.flash-ok { background: rgba(16, 185, 129, 0.15); color: var(--ok); border: 1px solid var(--ok); }
.flash-error { background: rgba(239, 68, 68, 0.15); color: var(--danger); border: 1px solid var(--danger); }

/* ---- Floating action button ---- */
.fab {
  position: fixed;
  right: 20px;
  bottom: calc(20px + env(safe-area-inset-bottom));
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
  z-index: 5;
}
.fab:hover { background: var(--primary-hover); }

/* ---- Details (collapsible new-food) ---- */
details.card summary {
  cursor: pointer;
  list-style: none;
  padding: 4px 0;
}
details.card summary::-webkit-details-marker { display: none; }
details.card[open] summary { margin-bottom: 12px; }