/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent: #FF6B6B;
  --accent-light: #FFE5E5;
  --accent-dark: #E55555;
  --bg: #F8F7F5;
  --surface: #FFFFFF;
  --surface-2: #F2F1EF;
  --text: #1A1A1A;
  --text-2: #666666;
  --text-3: #999999;
  --border: #EBEBEB;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 20px rgba(0,0,0,0.10);
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'DM Sans', system-ui, sans-serif;

  --macro-protein: #4ECDC4;
  --macro-carbs: #FFD93D;
  --macro-fat: #FF6B9D;

  --green: #51CF66;
  --red: #FF6B6B;
  --orange: #FF9F43;
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Header ── */
.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

.header-inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.logo-emoji {
  font-size: 1.2rem;
}

.date-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-btn {
  background: var(--surface-2);
  border: none;
  border-radius: 8px;
  width: 36px;
  height: 36px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
}

.nav-btn:hover {
  background: var(--accent-light);
  color: var(--accent);
}

.nav-btn:active {
  transform: scale(0.95);
}

.date-display {
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  transition: background 0.15s;
  min-width: 110px;
  text-align: center;
}

.date-display:hover {
  background: var(--surface-2);
}

/* ── Main layout ── */
.main-content {
  max-width: 680px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

/* ── Loading ── */
.loading-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-2);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto 16px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-2);
}

.empty-emoji {
  font-size: 3rem;
  margin-bottom: 12px;
}

/* ── Status banner ── */
.status-banner {
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin-bottom: 20px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.status-banner.good {
  background: #E8F8EC;
  color: #2D7A42;
}

.status-banner.over {
  background: #FFF0E8;
  color: #C45700;
}

/* ── Summary cards ── */
.summary-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.summary-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s;
}

.summary-card:hover {
  box-shadow: var(--shadow-hover);
}

.summary-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.summary-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 4px;
}

.summary-sub {
  font-size: 0.75rem;
  color: var(--text-3);
}

/* ── Generic card ── */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: var(--shadow-hover);
}

.card-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

/* ── Macro bars ── */
.macros-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.macro-row {
  display: grid;
  grid-template-columns: 70px 1fr 50px;
  align-items: center;
  gap: 12px;
}

.macro-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-2);
}

.macro-track {
  background: var(--surface-2);
  border-radius: 99px;
  height: 8px;
  overflow: hidden;
}

.macro-fill {
  height: 100%;
  border-radius: 99px;
  transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.macro-fill.protein { background: var(--macro-protein); }
.macro-fill.carbs   { background: var(--macro-carbs); }
.macro-fill.fat     { background: var(--macro-fat); }

.macro-val {
  font-size: 0.85rem;
  font-weight: 600;
  text-align: right;
  color: var(--text);
}

/* ── Progress bar ── */
.progress-card {}

.progress-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.progress-header .card-title {
  margin-bottom: 0;
}

.progress-label-right {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-2);
}

.progress-track {
  background: var(--surface-2);
  border-radius: 99px;
  height: 12px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--accent);
  transition: width 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 100%;
}

.progress-bar.over-goal {
  background: var(--orange);
}

/* ── Week chart ── */
.week-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 100px;
  margin-bottom: 10px;
}

.week-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  height: 100%;
  justify-content: flex-end;
}

.week-bars {
  display: flex;
  gap: 2px;
  align-items: flex-end;
  width: 100%;
  height: 80px;
}

.week-bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  transition: height 0.5s ease;
  min-height: 2px;
}

.week-bar.bar-in { background: var(--accent); opacity: 0.85; }
.week-bar.bar-net { background: var(--accent); opacity: 0.4; }

.week-col.active-day .week-bar { opacity: 1; }
.week-col.active-day .week-bar.bar-in { background: var(--accent); }

.week-label {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-3);
  text-align: center;
}

.week-col.active-day .week-label {
  color: var(--accent);
  font-weight: 700;
}

.week-legend {
  display: flex;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-3);
}

.legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 5px;
}

.dot-in { background: var(--accent); }
.dot-net { background: var(--accent); opacity: 0.4; }

/* ── Exercise ── */
.exercise-card {}

.exercise-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.exercise-item:last-child { border-bottom: none; }

.exercise-name {
  font-weight: 500;
  text-transform: capitalize;
}

.exercise-meta {
  font-size: 0.8rem;
  color: var(--text-3);
  margin-top: 2px;
}

.exercise-cal {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green);
  background: #E8F8EC;
  padding: 4px 10px;
  border-radius: 99px;
}

/* ── Meals ── */
.section-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  margin-top: 4px;
}

.meal-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
  transition: box-shadow 0.2s;
}

.meal-card:hover {
  box-shadow: var(--shadow-hover);
}

.meal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
  gap: 12px;
}

.meal-name-wrap {}

.meal-name {
  font-weight: 600;
  font-size: 1rem;
  text-transform: capitalize;
  display: flex;
  align-items: center;
  gap: 6px;
}

.meal-description {
  font-size: 0.8rem;
  color: var(--text-3);
  margin-top: 2px;
  font-style: italic;
}

.meal-cal-badge {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 12px;
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
}

.meal-macros {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.meal-macro {
  font-size: 0.78rem;
  color: var(--text-3);
}

.meal-macro span {
  font-weight: 600;
  color: var(--text-2);
}

/* Collapsible items */
.meal-items {
  margin-top: 12px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
  display: none;
}

.meal-items.open { display: block; }

.meal-toggle {
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 0.78rem;
  color: var(--text-3);
  cursor: pointer;
  padding: 4px 0;
  transition: color 0.15s;
}

.meal-toggle:hover { color: var(--accent); }

.meal-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
  gap: 10px;
}

.meal-item-row:last-child { border-bottom: none; }

.meal-item-name {
  font-size: 0.82rem;
  color: var(--text-2);
  flex: 1;
}

.meal-item-cal {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.meal-item-macros {
  font-size: 0.72rem;
  color: var(--text-3);
  white-space: nowrap;
}

/* ── Meal emojis ── */
.meal-emoji { font-size: 1rem; }

/* ── Responsive ── */
@media (max-width: 480px) {
  .summary-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .summary-value { font-size: 1.3rem; }
  .summary-label { font-size: 0.68rem; }
  .header-inner { padding: 12px 16px; }
  .main-content { padding: 16px 14px 50px; }
  .week-chart { height: 80px; }
  .week-bars { height: 60px; }
}

/* ── Transitions ── */
#day-view, #no-data {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}