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

:root {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --border: #e0e0e0;
  --primary: #2d6a4f;
  --primary-hover: #1b4332;
  --primary-light: #d8f3dc;
  --danger: #d32f2f;
  --danger-hover: #b71c1c;
  --text: #1a1a1a;
  --text-muted: #666;
  --radius: 8px;
  --shadow: 0 1px 4px rgba(0,0,0,.08);
  --cal-color: #e85d04;
  --protein-color: #2196f3;
  --carbs-color: #ff9800;
  --fat-color: #9c27b0;
  --fiber-color: #4caf50;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── NAV ── */
nav {
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0;
  height: 52px;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 6px rgba(0,0,0,.15);
}
nav .logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -.3px;
  margin-right: auto;
}
nav a, nav button {
  background: none;
  border: none;
  color: rgba(255,255,255,.85);
  cursor: pointer;
  font-size: .9rem;
  padding: 6px 14px;
  border-radius: 6px;
  text-decoration: none;
  transition: background .15s, color .15s;
}
nav a:hover, nav button:hover,
nav a.active, nav button.active {
  background: rgba(255,255,255,.15);
  color: #fff;
}
nav .user-email {
  font-size: .8rem;
  color: rgba(255,255,255,.6);
  margin-left: 8px;
}

/* ── LAYOUT ── */
.page { max-width: 1000px; margin: 0 auto; padding: 28px 20px; }
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.page-header h1 { font-size: 1.5rem; font-weight: 600; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: .9rem;
  font-weight: 500;
  padding: 8px 16px;
  transition: background .15s, opacity .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #d0d0d0; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-ghost { background: none; color: var(--text-muted); padding: 4px 8px; }
.btn-ghost:hover { color: var(--text); background: var(--border); }
.btn-sm { padding: 5px 10px; font-size: .8rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── CARDS / LISTS ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.list-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 48px 20px;
  font-size: .95rem;
}
.item-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  transition: background .1s;
}
.item-row:last-child { border-bottom: none; }
.item-row:hover { background: #fafafa; }
.item-name { font-weight: 500; flex: 1; min-width: 0; }
.item-meta { font-size: .8rem; color: var(--text-muted); }
.item-actions { display: flex; gap: 4px; margin-left: auto; }

/* ── MACRO PILLS ── */
.macros {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.macro-pill {
  font-size: .75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  white-space: nowrap;
}
.macro-pill.cal  { background: #fde8d8; color: #c0440c; }
.macro-pill.pro  { background: #dbeafe; color: #1565c0; }
.macro-pill.carb { background: #fff3e0; color: #e65100; }
.macro-pill.fat  { background: #f3e5f5; color: #6a1b9a; }
.macro-pill.fib  { background: #e8f5e9; color: #2e7d32; }

/* ── MACRO SUMMARY BAR ── */
.macro-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
}
.macro-stat { text-align: center; }
.macro-stat .value {
  font-size: 1.4rem;
  font-weight: 700;
  display: block;
}
.macro-stat .label { font-size: .75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.macro-stat.cal .value  { color: var(--cal-color); }
.macro-stat.pro .value  { color: var(--protein-color); }
.macro-stat.carb .value { color: var(--carbs-color); }
.macro-stat.fat .value  { color: var(--fat-color); }
.macro-stat.fib .value  { color: var(--fiber-color); }

/* ── FORMS ── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .85rem; font-weight: 500; margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .9rem;
  padding: 8px 12px;
  transition: border-color .15s;
  background: var(--surface);
  color: var(--text);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

/* ── AUTH ── */
.auth-wrap {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 80px 20px;
}
.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
}
.auth-card h2 { font-size: 1.3rem; margin-bottom: 24px; }
.auth-tabs { display: flex; gap: 0; margin-bottom: 28px; border-bottom: 2px solid var(--border); }
.auth-tab {
  background: none;
  border: none;
  cursor: pointer;
  font-size: .9rem;
  padding: 8px 16px;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  font-weight: 500;
}
.auth-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.auth-error { color: var(--danger); font-size: .85rem; margin-bottom: 12px; }

/* ── MODAL ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.4);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 20px;
  z-index: 200;
  overflow-y: auto;
}
.modal {
  background: var(--surface);
  border-radius: 12px;
  padding: 28px;
  width: 100%;
  max-width: 560px;
  box-shadow: 0 8px 40px rgba(0,0,0,.15);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px;
}
.modal-header h2 { font-size: 1.1rem; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 1.3rem; cursor: pointer; color: var(--text-muted); padding: 4px; }

/* ── INGREDIENT TABLE (recipe editor) ── */
.ingredient-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.ingredient-table th {
  background: #f5f5f5;
  padding: 8px 10px;
  text-align: left;
  font-weight: 600;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
}
.ingredient-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.ingredient-table tr:last-child td { border-bottom: none; }
.ingredient-table tr:hover td { background: #fafafa; }
.ingredient-table .totals td {
  background: #f0f7f4;
  font-weight: 700;
  border-top: 2px solid var(--primary-light);
}
.ingredient-table .per-serving td {
  background: #f9fbe7;
  font-size: .8rem;
  color: var(--text-muted);
  border-top: 1px dashed var(--border);
}
.qty-input {
  width: 80px;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 6px;
  font-size: .85rem;
  text-align: right;
}
.qty-input:focus { outline: none; border-color: var(--primary); }

/* ── SEARCH INPUT ── */
.search-wrap { position: relative; margin-bottom: 16px; }
.search-wrap input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px 8px 36px;
  font-size: .9rem;
}
.search-wrap::before {
  content: '🔍';
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: .8rem;
  pointer-events: none;
}
.search-results {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-height: 260px;
  overflow-y: auto;
}
.search-result-item {
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background .1s;
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--primary-light); }
.search-result-item .food-name { font-weight: 500; font-size: .9rem; }
.search-result-item .food-meta { font-size: .78rem; color: var(--text-muted); }

/* ── MEAL PLAN ── */
.meal-section { margin-bottom: 8px; }
.meal-section-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
  padding: 10px 0 8px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 4px;
}
.meal-section-header .section-label { margin-right: 4px; }
.meal-section-header .section-macros { margin-left: auto; }
.meal-section + .meal-section { border-top: 1px solid var(--border); padding-top: 4px; margin-top: 4px; }
.meal-entry-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.meal-entry-row:last-child { border-bottom: none; }

/* ── TAGS / BADGES ── */
.badge {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  text-transform: capitalize;
}
.badge-breakfast { background: #fff8e1; color: #f57f17; }
.badge-lunch     { background: #e8f5e9; color: #2e7d32; }
.badge-dinner    { background: #e3f2fd; color: #1565c0; }
.badge-snack     { background: #fce4ec; color: #880e4f; }

/* ── LOADING / TOAST ── */
.loading { text-align: center; padding: 48px; color: var(--text-muted); }
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #333;
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: .9rem;
  z-index: 9999;
  animation: fadeIn .2s ease;
}
.toast.error { background: var(--danger); }
.toast.success { background: var(--primary); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ── RECIPE GRID ── */
.recipe-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.recipe-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: box-shadow .15s, border-color .15s;
}
.recipe-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.1); border-color: var(--primary-light); }
.recipe-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.recipe-card .servings { font-size: .8rem; color: var(--text-muted); margin-bottom: 10px; }

/* ── RECIPE EDITOR ── */
.recipe-editor { display: flex; flex-direction: column; gap: 20px; }
.editor-section { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.editor-section h2 { font-size: 1rem; font-weight: 600; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }

/* ── WEEKLY PLAN DAY TABS ── */
.plan-day-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 16px;
  overflow-x: auto;
}
.plan-day-tab {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 14px;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 64px;
  white-space: nowrap;
  font-size: .85rem;
  font-weight: 500;
  transition: color .15s, background .15s;
  flex-shrink: 0;
}
.plan-day-tab:hover { color: var(--text); background: var(--bg); }
.plan-day-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 700; }

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .macro-bar { grid-template-columns: repeat(3, 1fr); }
  nav a.hide-sm { display: none; }
  .recipe-grid { grid-template-columns: 1fr; }
}