/* FoodLog — Dark Theme Stylesheet
   Design tokens from DESIGN.md:
   bg: #121212  text: #e9ecef  accent: #4dabf7
   over-target: #ff6b6b  under-target: #51cf66
   food-input: white #ffffff, black text
   pie charts: green/blue/yellow/orange consumed, gray remaining
*/

:root {
  --bg:            #121212;
  --text:          #e9ecef;
  --text-muted:    #adb5bd;
  --accent:        #4dabf7;
  --over-target:   #ff6b6b;
  --under-target:  #51cf66;
  --green:         #51cf66;
  --blue:          #4dabf7;
  --yellow:        #ffd43b;
  --orange:        #ff9224;
  --gray:          #868e96;
  --gray-dark:     #495057;
  --card-bg:       #1e1e1e;
  --border:        #333333;
  --divider:       #444444;
  --food-input-bg: #ffffff;
  --food-input-text: #000000;
  --shadow:        0 2px 8px rgba(0, 0, 0, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  padding-bottom: 60px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px;
}

/* ------------------------------------------------------------------ */
/* Typography                                                          */
/* ------------------------------------------------------------------ */
h1 { font-size: 1.75rem; margin-bottom: 16px; color: var(--text); }
h2 { font-size: 1.25rem; margin: 16px 0 12px; color: var(--text); }
h3 { font-size: 1rem; margin: 12px 0 8px; color: var(--text); }

.muted { color: var(--text-muted); }
.small { font-size: 0.85rem; }
.caption { font-size: 0.8rem; color: var(--text-muted); }

/* ------------------------------------------------------------------ */
/* Cards & Sections                                                    */
/* ------------------------------------------------------------------ */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

hr.divider {
  border: 0;
  height: 1px;
  background: var(--divider);
  margin: 16px 0;
}

/* ------------------------------------------------------------------ */
/* Buttons                                                             */
/* ------------------------------------------------------------------ */
.btn {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
  transition: background 0.15s, border-color 0.15s;
}

.btn:hover {
  background: var(--card-bg);
  border-color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.1);
}

.btn-small {
  padding: 4px 12px;
  font-size: 0.8rem;
}

.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* ------------------------------------------------------------------ */
/* Form Elements                                                       */
/* ------------------------------------------------------------------ */
.food-input {
  background: var(--food-input-bg);
  color: var(--food-input-text);
  border: 1px solid var(--gray-dark);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 0.9rem;
  width: 100%;
}

.food-input:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

label {
  display: block;
  margin-bottom: 4px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

input[type="number"] {
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.9rem;
  width: 100%;
}

input[type="number"]:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.9rem;
  width: 100%;
  cursor: pointer;
}

select:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

.form-group { margin-bottom: 12px; }

/* ------------------------------------------------------------------ */
/* Grid Layouts                                                        */
/* ------------------------------------------------------------------ */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 600px) {
  .grid-2col { grid-template-columns: 1fr; }
}

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

@media (max-width: 600px) {
  .charts-grid { grid-template-columns: 1fr; }
}

.chart-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  text-align: center;
}

.pie-chart {
  max-height: 160px;
  width: auto !important;
  height: auto !important;
}

.chart-legend {
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.composite-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.food-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  text-align: center;
  position: relative;
}

.food-card-title { font-weight: 600; margin-bottom: 4px; }
.food-card-meta { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 6px; }
.favourite-star {
  position: absolute;
  top: 4px;
  right: 6px;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--gray);
  z-index: 2;
  pointer-events: auto;
  line-height: 1;
}
.favourite-star.active { color: var(--yellow); }
.food-card-nutrients {
  display: flex;
  gap: 8px;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

/* ------------------------------------------------------------------ */
/* Amount Input & Presets                                             */
/* ------------------------------------------------------------------ */
.amount-input-row {
  display: flex;
  gap: 6px;
  align-items: flex-end;
}

.amount-input-row input { width: 120px; }
.amount-input-row select { width: 80px; }

.preset-row {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.preset-btn {
  flex: 1;
  padding: 4px 6px;
  font-size: 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
}

.preset-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ------------------------------------------------------------------ */
/* Macro Preview                                                      */
/* ------------------------------------------------------------------ */
.macro-preview {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.macro-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  min-width: 60px;
}

.macro-chip span {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.macro-chip span:last-child {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

/* ------------------------------------------------------------------ */
/* Food Info Bar                                                      */
/* ------------------------------------------------------------------ */
.food-info-bar {
  display: flex;
  justify-content: space-between;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 12px;
}

/* ------------------------------------------------------------------ */
/* Scanner                                                            */
/* ------------------------------------------------------------------ */
#scanner-container { position: relative; }
#barcode-video { width: 100%; max-width: 320px; border-radius: 8px; }
#composite-scan-video { width: 100%; max-width: 320px; border-radius: 8px; }
#barcode-canvas { display: none; }

/* html5-qrcode creates its own video/canvas elements inside scanner containers */
#scanner-container video.html5-qrcode-video,
#composite-scanner-container video.html5-qrcode-video,
#scanner-container video,
#composite-scanner-container video {
  display: block !important;
  max-width: 100%;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

/* ------------------------------------------------------------------ */
/* Totals Bar                                                         */
/* ------------------------------------------------------------------ */
.totals-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.9rem;
}

.totals-bar span.safe { color: var(--under-target); }
.totals-bar span.over  { color: var(--over-target); }

/* ------------------------------------------------------------------ */
/* Meal List                                                          */
/* ------------------------------------------------------------------ */
.meal-list { list-style: none; }
.meal-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
}

.meal-emoji {
  font-size: 1.5rem;
  min-width: 36px;
  text-align: center;
}

.meal-details { flex: 1; }
.meal-time   { font-size: 0.75rem; color: var(--text-muted); }
.meal-name   { font-weight: 600; }
.meal-meta   { font-size: 0.8rem; color: var(--text-muted); }

.meal-nutrients {
  text-align: right;
  font-size: 0.8rem;
}
.meal-nutrients small { color: var(--text-muted); }

.delete-btn {
  background: none;
  border: none;
  color: var(--gray);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
}

.delete-btn:hover { color: var(--over-target); }

/* ------------------------------------------------------------------ */
/* Projections & TDEE                                                 */
/* ------------------------------------------------------------------ */
.projections { margin-top: 16px; }
.projection-item {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px solid var(--divider);
}
.projection-item:last-child { border-bottom: none; }

.proj-label  { color: var(--text-muted); }
.proj-value  { font-weight: 600; }
.proj-loss   { font-weight: 600; }
.proj-loss.positive { color: var(--under-target); }
.proj-loss.negative { color: var(--over-target); }

.tdee-info { margin-top: 16px; }
.info-table {
  width: 100%;
  border-collapse: collapse;
}
.info-table td {
  padding: 4px 8px;
  border-bottom: 1px solid var(--divider);
}
.info-table td:last-child { text-align: right; font-weight: 500; }

/* ------------------------------------------------------------------ */
/* Macro Inputs                                                       */
/* ------------------------------------------------------------------ */
.macro-inputs { margin-top: 12px; }
.macro-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.macro-row span { min-width: 60px; font-size: 0.8rem; color: var(--text-muted); }
.macro-row input { width: 60px; }

/* ------------------------------------------------------------------ */
/* Composite Builder                                                  */
/* ------------------------------------------------------------------ */
.ingredient-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
}
.ingredient-table th,
.ingredient-table td {
  padding: 6px 8px;
  text-align: left;
  border-bottom: 1px solid var(--divider);
  font-size: 0.85rem;
}
.ingredient-table th { color: var(--text-muted); font-weight: 600; }

.actions-col { width: 30px; text-align: center; }

.remove-ingredient-btn,
.remove-row-btn {
  background: none;
  border: none;
  color: var(--gray);
  cursor: pointer;
  font-size: 1.1rem;
}
.remove-ingredient-btn:hover { color: var(--over-target); }

.composite-totals { margin-top: 16px; }
.composite-totals table { width: 100%; }
.composite-totals td { padding: 4px 8px; border-bottom: 1px solid var(--divider); }
.composite-totals td:last-child { text-align: right; }

/* ------------------------------------------------------------------ */
/* Login Page                                                         */
/* ------------------------------------------------------------------ */
.login-page {
  display: flex;
  justify-content: center;
  min-height: 100vh;
  padding-top: 80px;
}
.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 360px;
  text-align: center;
  box-shadow: var(--shadow);
}
.login-card h1 { margin-bottom: 8px; }
.subtitle { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }
.login-card input[type="password"] {
  width: 100%;
  padding: 10px;
  margin-bottom: 12px;
  font-size: 1rem;
}
.login-card .btn { width: 100%; padding: 10px; }
.error { color: var(--over-target); font-size: 0.85rem; margin-bottom: 8px; }
.hint { color: var(--text-muted); font-size: 0.8rem; }
.hint code { background: var(--bg); padding: 2px 6px; border-radius: 4px; }

/* ------------------------------------------------------------------ */
/* Bottom Navigation (mobile friendly)                               */
/* ------------------------------------------------------------------ */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  padding: 10px 8px;
  gap: 4px;
}
.nav-item {
  flex: 1;
  text-align: center;
  color: var(--text);
  font-size: 0.85rem;
  padding: 8px 4px;
  border-radius: 6px;
  transition: background 0.15s;
}
.nav-item:hover {
  background: var(--accent);
  color: #fff;
}

/* ------------------------------------------------------------------ */
/* Food Input Field (white background, black text)                   */
/* ------------------------------------------------------------------ */
.food-input,
input.food-input {
  background: #ffffff !important;
  color: #000000 !important;
}

.food-input::placeholder {
  color: #6c757d;
}

.food-input:focus {
  border-color: var(--accent);
}