/* appCal component layer — sits on top of the generated tokens.css.
   Typography ("display-xl", "title-lg", "body", …) is generated from
   tokens.json and already loaded — this file only adds structural /
   component classes, all built from var(--token) so a theme switch
   (data-theme="dark") repaints everything below for free. */

* { box-sizing: border-box; }
body { margin: 0; background: var(--surface-page); color: var(--ink); font-family: var(--font-sans); -webkit-font-smoothing: antialiased; }
img, svg { display: block; }
button { font: inherit; color: inherit; }

/* ---------- Cards ---------- */
.card { background: var(--surface-card); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); padding: var(--space-5); }
.card--flat { box-shadow: none; border: 1px solid var(--border-subtle); }

/* ---------- Header ---------- */
.app-header { padding: var(--space-2) var(--space-4) var(--space-3); display: flex; align-items: flex-end; justify-content: space-between; }
.app-header__eyebrow { display: block; color: var(--ink-muted); margin-bottom: 2px; text-transform: uppercase; }
.icon-btn { width: 36px; height: 36px; border-radius: var(--radius-full); border: none; background: var(--surface-card); box-shadow: var(--shadow-sm); display: flex; align-items: center; justify-content: center; color: var(--ink); cursor: pointer; }
.icon-btn svg { width: 18px; height: 18px; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); border: none; cursor: pointer; border-radius: var(--radius-full); padding: 0 var(--space-6); height: 52px; font-size: 16px; font-weight: 700; }
.btn svg { width: 20px; height: 20px; }
.btn--primary { background: var(--accent); color: var(--on-accent); box-shadow: var(--shadow-sm); }
.btn--secondary { background: var(--surface-sunken); color: var(--ink); }
.btn--ghost { background: transparent; color: var(--ink-muted); }
.btn--danger-ghost { background: transparent; color: var(--status-danger); }
.btn--block { width: 100%; }
.btn--sm { height: 40px; padding: 0 var(--space-4); font-size: 14px; }
.btn--on-dark { background: rgba(255,255,255,0.16); color: #fff; }
.btn--flex { flex: 1; }

/* ---------- Calorie ring (Home hero) ---------- */
.ring-wrap { position: relative; width: 148px; height: 148px; flex: none; }
.ring-wrap svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.ring-center .unit { color: var(--ink-muted); margin-top: -2px; }
.ring-state { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px 4px 8px; border-radius: var(--radius-full); }
.ring-state svg { width: 14px; height: 14px; }
.ring-state--success { background: var(--status-success-subtle); color: var(--status-success); }
.ring-state--warning { background: var(--status-warning-subtle); color: var(--status-warning); }
.ring-state--danger { background: var(--status-danger-subtle); color: var(--status-danger); }

/* ---------- Macro mini bars (Home) ---------- */
.macro-row { display: flex; flex-direction: column; gap: 10px; }
.macro-line { display: flex; align-items: center; gap: var(--space-2); }
.macro-line__label { width: 58px; flex: none; color: var(--ink-muted); }
.macro-line__track { flex: 1; height: 8px; border-radius: 999px; background: var(--surface-sunken); overflow: hidden; }
.macro-line__fill { height: 100%; border-radius: 999px; }
.macro-line__value { width: 44px; flex: none; text-align: right; font-variant-numeric: tabular-nums; }

.macro-stack { display: flex; height: 20px; gap: 2px; border-radius: var(--radius-sm); overflow: hidden; background: var(--surface-sunken); }
.macro-stack__seg { height: 100%; }
.macro-stack__seg:first-child { border-top-left-radius: var(--radius-sm); border-bottom-left-radius: var(--radius-sm); }
.macro-stack__seg:last-child { border-top-right-radius: var(--radius-sm); border-bottom-right-radius: var(--radius-sm); }
.macro-legend { display: flex; gap: var(--space-4); margin-top: var(--space-3); flex-wrap: wrap; }
.macro-legend__item { display: flex; align-items: center; gap: 6px; }
.macro-legend__dot { width: 10px; height: 10px; border-radius: 999px; flex: none; }
.macro-legend__text { display: flex; flex-direction: column; }

/* ---------- Thumbnails ---------- */
.thumb { width: 48px; height: 48px; border-radius: var(--radius-sm); background: var(--surface-sunken); border: 1px solid var(--border-subtle); flex: none; display: flex; align-items: center; justify-content: center; color: var(--ink-faint); overflow: hidden; }
.thumb svg { width: 20px; height: 20px; }
.thumb--xl { width: 100%; height: 220px; border-radius: var(--radius-md); }

/* ---------- List rows ---------- */
.list-row { display: flex; align-items: center; gap: var(--space-3); padding: 10px var(--space-4); }
.list-row__body { flex: 1; min-width: 0; }
.list-row__title { display: block; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-row__meta { display: block; color: var(--ink-muted); margin-top: 1px; }
.list-row__trail { flex: none; color: var(--ink-muted); display: flex; align-items: center; gap: 4px; }
.list-row + .list-row { border-top: 1px solid var(--border-subtle); }

.day-group__header { display: flex; align-items: baseline; justify-content: space-between; padding: var(--space-4) var(--space-4) 6px; }
.day-group__header .label { color: var(--ink-muted); text-transform: uppercase; }

/* ---------- Confirm screen ---------- */
.confirm-photo { position: relative; }
.confirm-photo__retake { position: absolute; top: var(--space-3); right: var(--space-3); }
.field-label { color: var(--ink-muted); display: block; margin-bottom: 6px; }
.name-field { display: flex; align-items: center; gap: var(--space-2); border-bottom: 2px solid var(--border-strong); padding-bottom: 8px; }
.name-field input { flex: 1; border: none; background: transparent; padding: 0; color: var(--ink); font-family: var(--font-sans); }
.name-field input::placeholder { color: var(--ink-faint); }
.name-field svg { width: 18px; height: 18px; color: var(--ink-muted); flex: none; }
.confidence-chip { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: var(--radius-full); background: var(--status-warning-subtle); color: var(--status-warning); margin-top: 6px; }
.confidence-chip svg { width: 12px; height: 12px; }

.portion-control { background: var(--surface-sunken); border-radius: var(--radius-lg); padding: var(--space-4); }
.portion-control__row { display: flex; align-items: center; justify-content: space-between; }
.stepper-btn { width: 36px; height: 36px; border-radius: 999px; border: 1px solid var(--border-strong); background: var(--surface-card); display: flex; align-items: center; justify-content: center; color: var(--ink); flex: none; cursor: pointer; }
.stepper-btn svg { width: 16px; height: 16px; }
.portion-ticks { display: flex; justify-content: space-between; padding: 0 4px; color: var(--ink-faint); }

.macro-stat-row { display: flex; justify-content: space-between; }
.macro-stat { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.macro-stat__dot { width: 8px; height: 8px; border-radius: 999px; margin-bottom: 2px; }

/* ---------- Insights ---------- */
.segmented { display: inline-flex; background: var(--surface-sunken); border-radius: var(--radius-full); padding: 3px; }
.segmented__opt { border: none; background: transparent; padding: 7px 18px; border-radius: var(--radius-full); color: var(--ink-muted); font-weight: 700; font-size: 13px; cursor: pointer; }
.segmented__opt--active { background: var(--accent-subtle); color: var(--ink); }

.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.stat-tile__label { color: var(--ink-muted); display: block; margin-bottom: 2px; }
.stat-tile__delta { display: inline-flex; align-items: center; gap: 3px; margin-top: 4px; }
.stat-tile__delta svg { width: 12px; height: 12px; }
.stat-tile__delta--good { color: var(--status-success); }
.stat-tile__delta--bad { color: var(--status-danger); }

.chart-card { padding: var(--space-4) var(--space-4) var(--space-3); }
.chart-legend-row { display: flex; align-items: center; justify-content: space-between; }
.axis-label { fill: var(--ink-faint); font-size: 11px; font-family: var(--font-sans); }
.chart-goal-line { stroke: var(--ink-faint); stroke-width: 1.5; stroke-dasharray: 3 4; }
.chart-line { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.chart-area { fill: var(--accent); opacity: 0.1; }
.chart-dot { fill: var(--accent); stroke: var(--surface-card); stroke-width: 2; }
.chart-tooltip-bg { fill: var(--ink); }
.chart-tooltip-text { fill: var(--surface-card); font-size: 11px; font-weight: 700; font-family: var(--font-sans); }

.streak-card { display: flex; align-items: center; gap: var(--space-4); background: var(--brand-subtle); }
.streak-flame { width: 44px; height: 44px; flex: none; color: var(--brand); }
.streak-flame svg { width: 100%; height: 100%; }

/* ---------- Settings ---------- */
.settings-section__title { color: var(--ink-muted); text-transform: uppercase; padding: var(--space-5) var(--space-4) var(--space-2); display: block; }
.settings-row { display: flex; align-items: center; gap: var(--space-3); padding: 14px var(--space-4); background: var(--surface-card); }
.settings-row + .settings-row { border-top: 1px solid var(--border-subtle); }
.settings-row__icon { width: 34px; height: 34px; border-radius: var(--radius-sm); background: var(--surface-sunken); display: flex; align-items: center; justify-content: center; color: var(--ink); flex: none; }
.settings-row__icon svg { width: 18px; height: 18px; }
.settings-row__body { flex: 1; min-width: 0; }
.settings-group { border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
.settings-stepper { display: flex; align-items: center; gap: var(--space-2); }
.settings-stepper__value { min-width: 44px; text-align: center; font-variant-numeric: tabular-nums; }

.switch { width: 46px; height: 28px; border-radius: 999px; background: var(--border-strong); position: relative; flex: none; }
.switch--on { background: var(--brand); }
.switch__knob { position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 999px; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,0.3); transition: left 0.15s; }
.switch--on .switch__knob { left: 21px; }

.link-card { display: flex; align-items: center; gap: var(--space-3); }
.link-card__url { color: var(--ink-muted); }

.empty-hint { text-align: center; color: var(--ink-muted); padding: var(--space-8) var(--space-6); }
.empty-hint svg { width: 36px; height: 36px; color: var(--ink-faint); margin: 0 auto var(--space-3); }