:root {
  --bg: #0f1115;
  --surface: #1a1d24;
  --surface-2: #23272f;
  --border: #2e333d;
  --text: #f0f1f3;
  --text-dim: #9aa0ab;
  --accent: #4f8cff;
  --accent-dim: #2d4b8a;
  --good: #3ecf8e;
  --warn: #e8b339;
  --bad: #ff8383;
  --cal: #4f8cff;
  --protein: #3ecf8e;
  --fat: #e8b339;
  --carbs: #a78bfa;
  --fiber: #38bdf8;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding-bottom: 3rem;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.topbar h1 {
  font-size: 1.15rem;
  margin: 0;
  font-weight: 600;
  flex: 1;
}

.icon-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.1rem;
  cursor: pointer;
}

.icon-btn:active { background: var(--surface-2); }

#app {
  max-width: 640px;
  margin: 0 auto;
  padding: 1.25rem;
}

.muted { color: var(--text-dim); font-weight: 400; font-size: 0.85rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.form { display: grid; gap: 1rem; }

.form label,
.field-label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--text-dim);
}

input, select, textarea {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  font-size: 1rem;
  font-family: inherit;
  width: 100%;
}

textarea { resize: vertical; }

.primary-btn {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 0.85rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
}
.primary-btn:active { background: var(--accent-dim); }
.primary-btn:disabled { opacity: 0.5; cursor: default; }

.secondary-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.7rem;
  font-size: 0.95rem;
  cursor: pointer;
  width: 100%;
}

.danger-btn {
  background: transparent;
  border: 1px solid #7a3535;
  color: var(--bad);
  border-radius: 10px;
  padding: 0.7rem;
  font-size: 0.9rem;
  cursor: pointer;
  width: 100%;
}

.text-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0.25rem 0;
}
.text-btn.danger-text-btn { color: var(--bad); }

.empty-state {
  text-align: center;
  color: var(--text-dim);
  padding: 2.5rem 1rem;
  line-height: 1.5;
}

.pill {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-dim);
  border: 1px solid var(--border);
  text-transform: capitalize;
}

.action-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1rem;
}
.action-row.single { grid-template-columns: 1fr; }

/* --- Day navigation --- */

.day-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.day-nav .day-label {
  flex: 1;
  text-align: center;
}
.day-nav .day-label strong { font-size: 1.05rem; display: block; }
.day-nav .day-label input[type="date"] {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 0.8rem;
  text-align: center;
  width: auto;
  padding: 0.15rem;
  cursor: pointer;
}
.day-nav .icon-btn:disabled { opacity: 0.3; cursor: default; }

/* --- Totals card --- */

.totals-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.totals-hero {
  text-align: center;
  margin-bottom: 1rem;
}
.totals-hero .kcal-value { font-size: 2.6rem; font-weight: 700; line-height: 1; }
.totals-hero .kcal-label { color: var(--text-dim); font-size: 0.85rem; margin-top: 0.25rem; }

.macro-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
}
.macro-box {
  text-align: center;
  padding: 0.6rem 0.25rem;
  background: var(--surface-2);
  border-radius: 10px;
}
.macro-box .value { font-size: 1.15rem; font-weight: 600; }
.macro-box .label { font-size: 0.7rem; color: var(--text-dim); margin-top: 0.15rem; }
.macro-box.protein .value { color: var(--protein); }
.macro-box.fat .value { color: var(--fat); }
.macro-box.carbs .value { color: var(--carbs); }
.macro-box.fiber .value { color: var(--fiber); }

/* --- Meal list rows --- */

.meal-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}
.meal-row:last-child { border-bottom: none; }
.meal-thumb {
  width: 3rem;
  height: 3rem;
  border-radius: 10px;
  object-fit: cover;
  background: var(--surface-2);
  flex-shrink: 0;
}
.meal-thumb.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.meal-row-main { flex: 1; min-width: 0; }
.meal-row-main .meal-title {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.meal-row-main .meal-sub { font-size: 0.8rem; color: var(--text-dim); }
.meal-row-kcal { text-align: right; flex-shrink: 0; }
.meal-row-kcal .value { font-weight: 600; }
.meal-row-kcal .unit { font-size: 0.7rem; color: var(--text-dim); }

/* --- FAB / new intake --- */

.fab-row { margin: 0.5rem 0 1.25rem 0; }

/* --- Intake form --- */

.photo-previews {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.photo-previews:empty { display: none; }
.photo-preview {
  position: relative;
  width: 4.5rem;
  height: 4.5rem;
}
.photo-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}
.photo-preview button {
  position: absolute;
  top: -0.5rem;
  right: -0.5rem;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 999px;
  border: none;
  background: #000;
  color: #fff;
  font-size: 0.9rem;
  line-height: 1;
  cursor: pointer;
}

.upload-btn {
  display: block;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 0.85rem;
  color: var(--text-dim);
  cursor: pointer;
}
.upload-btn:active { background: var(--surface-2); }

.audio-area { display: grid; gap: 0.6rem; }
.audio-record-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 0.85rem;
  color: var(--text-dim);
  background: transparent;
  cursor: pointer;
}
.audio-record-btn.recording { border-color: var(--bad); color: var(--bad); }
.audio-player { display: flex; align-items: center; gap: 0.6rem; }
.audio-player audio { flex: 1; }

/* --- Analyzing / review --- */

.pending-box { text-align: center; padding: 2.5rem 1rem; }
.pending-box .spinner {
  width: 2.5rem; height: 2.5rem;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 999px;
  margin: 0 auto 1.25rem;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.nutrient-edit {
  display: grid;
  grid-template-columns: 1fr 4.5rem 4.5rem 4.5rem;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.55rem;
}
.nutrient-edit .n-label { font-size: 0.9rem; }
.nutrient-edit input { text-align: center; padding: 0.5rem 0.35rem; }
.nutrient-head {
  display: grid;
  grid-template-columns: 1fr 4.5rem 4.5rem 4.5rem;
  gap: 0.5rem;
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-bottom: 0.4rem;
  text-align: center;
}
.nutrient-head span:first-child { text-align: left; }

.item-edit {
  display: grid;
  grid-template-columns: 1fr 1fr 1.8rem;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  align-items: center;
}
.item-edit input { padding: 0.5rem; }
.remove-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 8px;
  height: 2rem;
  font-size: 1rem;
  cursor: pointer;
}
.add-row-btn {
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--text-dim);
  border-radius: 8px;
  padding: 0.5rem;
  width: 100%;
  font-size: 0.85rem;
  cursor: pointer;
  margin-top: 0.25rem;
}

.confidence-bar-wrap { margin: 0.35rem 0 0.25rem; }
.confidence-bar {
  height: 0.5rem;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
}
.confidence-bar > div { height: 100%; border-radius: 999px; }
.confidence-low > div { background: var(--warn); }
.confidence-high > div { background: var(--good); }

.nudge {
  background: rgba(232, 179, 57, 0.12);
  border: 1px solid rgba(232, 179, 57, 0.4);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  font-size: 0.85rem;
  color: var(--warn);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.section-title {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 0.6rem;
}

/* --- History --- */

.history-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}
.history-row:last-child { border-bottom: none; }
.history-row.empty { cursor: default; opacity: 0.55; }
.history-row-date { flex: 1; }
.history-row-date strong { display: block; }
.history-row-date .sub { font-size: 0.8rem; color: var(--text-dim); }
.history-row-kcal { text-align: right; }
.history-row-kcal .value { font-weight: 600; }
.history-row-kcal .unit { font-size: 0.7rem; color: var(--text-dim); }

/* --- Meal detail --- */

.detail-photos {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.detail-photos img {
  width: 100%;
  max-width: 100%;
  border-radius: 12px;
}
.detail-photos img.multi { width: calc(50% - 0.25rem); }
.kv-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.kv-row:last-child { border-bottom: none; }
.kv-row .k { color: var(--text-dim); }
.kv-row .range { color: var(--text-dim); font-size: 0.8rem; }
.detail-item {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}
.detail-item:last-child { border-bottom: none; }
.detail-item .src { color: var(--text-dim); font-size: 0.8rem; }

/* --- Login --- */

.login-landing { margin-top: 3rem; }
.login-hero { text-align: center; margin-bottom: 1.5rem; }
.login-hero h2 { margin: 0.25rem 0; font-size: 1.6rem; }
.login-logo { font-size: 2.5rem; }
.login-error { color: var(--bad); font-size: 0.85rem; margin: 0; }

/* --- Overlays --- */

.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 100;
}
.confirm-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  max-width: 22rem;
  width: 100%;
}
.confirm-box p { margin: 0 0 1rem 0; line-height: 1.5; }

.menu-sheet {
  position: absolute;
  top: 3.75rem;
  right: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.4rem;
  z-index: 100;
  min-width: 12rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.menu-sheet button {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text);
  padding: 0.7rem 0.85rem;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}
.menu-sheet button:active { background: var(--surface-2); }