/* ============================================================
   QL Foods AI Exhibition Agent — design tokens + shared kit
   Tokens from approved Stitch "Agri-Tech Enterprise Excellence"
   Local system font stack only — zero network at build & runtime.
   ============================================================ */

:root {
  --surface: #fbf9f8;
  --surface-low: #f6f3f2;
  --surface-container: #f0eded;
  --surface-high: #eae8e7;
  --surface-highest: #e4e2e1;
  --on-surface: #1b1c1c;
  --on-surface-variant: #564241;
  --outline: #897170;
  --outline-variant: #dcc0be;
  --primary: #58050f;
  --primary-container: #771e22;
  --on-primary: #fff;
  --primary-soft: #ffdad8;
  --primary-tint: #a13d3e;
  --secondary: #27609d;
  --secondary-soft: #d3e4ff;
  --error: #ba1a1a;
  --radius: 14px;
  --font-sans: "Hanken Grotesk", "Inter", system-ui, -apple-system,
    "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif;
  --shadow-1: 0 1px 3px rgba(27, 28, 28, 0.08), 0 1px 2px rgba(27, 28, 28, 0.05);
  --shadow-2: 0 4px 14px rgba(27, 28, 28, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  line-height: 1.2;
  font-weight: 700;
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--secondary);
}

img, svg {
  max-width: 100%;
}

:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 2px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 120ms ease, border-color 120ms ease, opacity 120ms ease;
  min-height: 44px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-container);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--outline-variant);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--surface-container);
}

/* ---------- Inputs ---------- */

.input {
  display: block;
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--outline);
  border-radius: var(--radius);
  background: #fff;
  color: var(--on-surface);
  font-family: inherit;
  font-size: 16px;
  line-height: 1.4;
  min-height: 44px;
}

.input::placeholder {
  color: var(--outline);
}

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

textarea.input {
  resize: vertical;
  min-height: 88px;
}

.field-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: 6px;
}

/* ---------- Card ---------- */

.card {
  background: #fff;
  border: 1px solid var(--surface-highest);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-1);
}

/* ---------- Table ---------- */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--surface-highest);
  border-radius: var(--radius);
  background: #fff;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th {
  text-align: start;
  padding: 12px 16px;
  background: var(--surface-container);
  color: var(--on-surface-variant);
  font-weight: 700;
  white-space: nowrap;
  border-bottom: 1px solid var(--surface-highest);
}

.table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--surface-high);
  vertical-align: top;
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table tbody tr:hover {
  background: var(--surface-low);
}

/* ---------- Badge ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.6;
  background: var(--surface-container);
  color: var(--on-surface-variant);
  white-space: nowrap;
}

.badge-primary {
  background: var(--primary-soft);
  color: var(--primary);
}

.badge-secondary {
  background: var(--secondary-soft);
  color: var(--secondary);
}

.badge-error {
  background: #ffe1e1;
  color: var(--error);
}

.badge-success {
  background: #dcf1de;
  color: #1c5e26;
}

/* ---------- Chip (tappable topic / language) ---------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--outline-variant);
  background: #fff;
  color: var(--on-surface);
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  min-height: 44px;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.chip:hover {
  background: var(--surface-container);
}

.chip.active,
.chip[aria-pressed="true"] {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
}

/* ---------- Stat tile ---------- */

.stat-tile {
  background: #fff;
  border: 1px solid var(--surface-highest);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-1);
}

.stat-tile .stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}

.stat-tile .stat-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- Chat bubbles (RTL-safe via logical properties) ---------- */

.bubble-row {
  display: flex;
  margin-block: 6px;
}

.bubble {
  max-width: 78%;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 17px;
  line-height: 1.5;
  overflow-wrap: break-word;
  white-space: pre-wrap;
}

.bubble-row.user {
  justify-content: flex-end;
}

.bubble-user {
  background: var(--primary);
  color: var(--on-primary);
  border-end-end-radius: 4px;
  margin-inline-start: auto;
}

.bubble-assistant {
  background: var(--surface-high);
  color: var(--on-surface);
  border-end-start-radius: 4px;
  margin-inline-end: auto;
}

.bubble .bubble-meta {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  opacity: 0.75;
}

/* ---------- Admin sidebar ---------- */

.sidebar {
  background: var(--primary);
  color: var(--on-primary);
  width: 240px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  flex-shrink: 0;
}

.sidebar-brand {
  font-size: 18px;
  font-weight: 800;
  padding: 6px 12px 18px;
  color: var(--on-primary);
  letter-spacing: 0.01em;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: background-color 120ms ease;
}

.sidebar-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--on-primary);
}

.sidebar-link.active {
  background: rgba(255, 255, 255, 0.16);
  color: var(--on-primary);
  font-weight: 700;
}

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

/* ---------- Small helpers ---------- */

.muted {
  color: var(--on-surface-variant);
}

.error-text {
  color: var(--error);
}

/* ---------- RTL ---------- */
/* Logical properties above handle most flipping automatically. */

[dir="rtl"] {
  text-align: right;
}

[dir="rtl"] .table th {
  text-align: start;
}