/* ==========================================================================
   Pot să aduc mâncare în Marea Britanie? / Great Britain Food Customs Checker
   Dual theming (Light / Dark), WCAG AAA contrast, responsive, no inline hex.
   ========================================================================== */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Default Light Mode */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-elevated: #f1f5f9;
  --bg-input: #ffffff;
  --bg-chip: #e2e8f0;
  --bg-chip-hover: #cbd5e1;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #475569;
  --text-inverse: #ffffff;

  --border-subtle: #cbd5e1;
  --border-strong: #94a3b8;
  --border-focus: #0284c7;

  /* Status Colors - WCAG AAA verified contrast on respective backgrounds */
  --status-yes-bg: #ecfdf5;
  --status-yes-border: #059669;
  --status-yes-text: #064e3b;

  --status-no-bg: #fef2f2;
  --status-no-border: #dc2626;
  --status-no-text: #7f1d1d;

  --status-limit-bg: #fffbeb;
  --status-limit-border: #d97706;
  --status-limit-text: #78350f;

  --status-cert-bg: #f5f3ff;
  --status-cert-border: #7c3aed;
  --status-cert-text: #4c1d95;

  --accent-blue: #0284c7;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  --bg-page: #090d16;
  --bg-surface: #111827;
  --bg-elevated: #1f2937;
  --bg-input: #1e293b;
  --bg-chip: #334155;
  --bg-chip-hover: #475569;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;

  --border-subtle: #334155;
  --border-strong: #64748b;
  --border-focus: #38bdf8;

  --status-yes-bg: #064e3b;
  --status-yes-border: #10b981;
  --status-yes-text: #ecfdf5;

  --status-no-bg: #7f1d1d;
  --status-no-border: #ef4444;
  --status-no-text: #fef2f2;

  --status-limit-bg: #78350f;
  --status-limit-border: #f59e0b;
  --status-limit-text: #fffbeb;

  --status-cert-bg: #4c1d95;
  --status-cert-border: #a78bfa;
  --status-cert-text: #f5f3ff;

  --accent-blue: #38bdf8;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   Topbar (V2 standard: exactly one line tall, sticky)
   ========================================================================== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 48px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.home {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.home:hover, .home:focus-visible {
  color: var(--accent-blue);
}

.topnav {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  font-size: 0.875rem;
}

.topnav::-webkit-scrollbar {
  display: none;
}

.topnav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 4px 6px;
  border-radius: 4px;
}

.topnav a:hover, .topnav a:focus-visible {
  color: var(--text-primary);
  background-color: var(--bg-elevated);
}

.spacer {
  flex-grow: 1;
}

.chip {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 9999px;
  background-color: var(--bg-chip);
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.chip:hover, .chip:focus-visible {
  background-color: var(--bg-chip-hover);
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.icon-btn:hover, .icon-btn:focus-visible {
  background-color: var(--bg-elevated);
  border-color: var(--border-strong);
}

.icon-btn svg {
  display: block;
}

.icon-btn svg[hidden] {
  display: none !important;
}

/* Sections margin to offset sticky topbar */
section {
  scroll-margin-top: 56px;
}

/* ==========================================================================
   Main Layout & Container
   ========================================================================== */
.container {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

/* Header & Intro */
.hero {
  margin-bottom: 28px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 4px;
  background-color: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.hero h1 {
  font-size: 1.875rem;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 12px;
}

@media (min-width: 640px) {
  .hero h1 {
    font-size: 2.375rem;
  }
}

.hero-lead {
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.notice-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--accent-blue);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.notice-box p {
  margin: 0;
}

/* ==========================================================================
   Navigation Tabs (Checker vs Quiz)
   ========================================================================== */
.mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  background-color: var(--bg-elevated);
  padding: 4px;
  border-radius: 8px;
  margin-bottom: 24px;
  border: 1px solid var(--border-subtle);
}

.tab-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn[aria-selected="true"] {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Checker Card & Selectors
   ========================================================================== */
.checker-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 32px;
}

@media (min-width: 640px) {
  .checker-card {
    padding: 28px;
  }
}

.selector-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

@media (min-width: 640px) {
  .selector-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.field-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.field-hint {
  font-size: 0.75rem;
  font-weight: normal;
  color: var(--text-muted);
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrapper input,
.input-wrapper select {
  width: 100%;
  height: 48px;
  padding: 10px 14px;
  font-size: 1rem;
  font-family: var(--font-sans);
  background-color: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.input-wrapper input:focus,
.input-wrapper select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
}

.clear-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: none;
  font-size: 1.125rem;
  line-height: 1;
}

.clear-btn.active {
  display: block;
}

/* Autocomplete suggestions dropdown */
.suggestions-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  max-height: 240px;
  overflow-y: auto;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 50;
  list-style: none;
  display: none;
}

.suggestions-list.open {
  display: block;
}

.suggestion-item {
  padding: 10px 14px;
  font-size: 0.9375rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border-subtle);
}

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

.suggestion-item:hover,
.suggestion-item.active,
.suggestion-item.highlighted {
  background-color: var(--bg-chip-hover);
  color: var(--text-primary);
  outline: 2px solid var(--border-focus);
}

.item-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* Quick chips */
.chips-bar {
  margin-top: 16px;
}

.chips-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: block;
}

.chips-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill-btn {
  font-size: 0.8125rem;
  font-family: var(--font-sans);
  background-color: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  padding: 5px 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.pill-btn:hover {
  background-color: var(--bg-chip-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

/* ==========================================================================
   Verdict Output Card
   ========================================================================== */
.verdict-card {
  margin-top: 24px;
  padding: 20px;
  border-radius: 10px;
  border-width: 2px;
  border-style: solid;
  transition: all 0.2s ease;
}

.verdict-card.state-yes {
  background-color: var(--status-yes-bg);
  border-color: var(--status-yes-border);
  color: var(--status-yes-text);
}

.verdict-card.state-no {
  background-color: var(--status-no-bg);
  border-color: var(--status-no-border);
  color: var(--status-no-text);
}

.verdict-card.state-limit {
  background-color: var(--status-limit-bg);
  border-color: var(--status-limit-border);
  color: var(--status-limit-text);
}

.verdict-card.state-cert {
  background-color: var(--status-cert-bg);
  border-color: var(--status-cert-border);
  color: var(--status-cert-text);
}

.verdict-card.state-unset {
  background-color: var(--bg-surface);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.verdict-card.state-unset .verdict-badge {
  background-color: var(--bg-chip);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

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

.verdict-badge {
  font-size: 1.375rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.verdict-query {
  font-size: 0.875rem;
  font-weight: 600;
  opacity: 0.9;
}

.verdict-reason {
  font-size: 1.0625rem;
  line-height: 1.5;
  margin-bottom: 16px;
  font-weight: 500;
}

.verdict-receipt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px dashed currentColor;
  font-size: 0.8125rem;
  opacity: 0.95;
}

.receipt-link {
  color: currentColor;
  font-weight: 700;
  text-decoration: underline;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.receipt-link:hover {
  opacity: 0.8;
}

.try-another-btn {
  padding: 6px 14px;
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: 6px;
  border: 1px solid currentColor;
  background: transparent;
  color: currentColor;
  cursor: pointer;
  transition: background 0.15s;
}

.try-another-btn:hover {
  background-color: rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .try-another-btn:hover {
  background-color: rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   Quiz Game Section
   ========================================================================== */
.quiz-container {
  display: none;
}

.quiz-container.active {
  display: block;
}

.quiz-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 32px;
}

@media (min-width: 640px) {
  .quiz-card {
    padding: 32px;
  }
}

.quiz-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.progress-bar {
  height: 6px;
  background-color: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 24px;
}

.progress-fill {
  height: 100%;
  background-color: var(--accent-blue);
  width: 10%;
  transition: width 0.3s ease;
}

.quiz-scenario {
  text-align: center;
  padding: 16px 0 24px;
}

.quiz-icon {
  font-size: 3.5rem;
  margin-bottom: 12px;
  display: block;
}

.quiz-question-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

@media (min-width: 640px) {
  .quiz-question-title {
    font-size: 1.5rem;
  }
}

.quiz-origin {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.quiz-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}

.btn-yes, .btn-no {
  height: 54px;
  font-size: 1.125rem;
  font-weight: 800;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.15s ease;
  font-family: var(--font-sans);
}

.btn-yes {
  background-color: var(--status-yes-bg);
  border-color: var(--status-yes-border);
  color: var(--status-yes-text);
}

.btn-yes:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-no {
  background-color: var(--status-no-bg);
  border-color: var(--status-no-border);
  color: var(--status-no-text);
}

.btn-no:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Quiz Reveal Box */
.quiz-reveal {
  margin-top: 24px;
  padding: 18px;
  border-radius: 8px;
  border: 2px solid var(--border-subtle);
  background-color: var(--bg-elevated);
  display: none;
}

.quiz-reveal.show {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.quiz-verdict-tag {
  font-size: 1.125rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.quiz-verdict-tag.correct {
  color: var(--status-yes-text);
}

.quiz-verdict-tag.incorrect {
  color: var(--status-no-text);
}

.quiz-reveal-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.btn-next-question {
  width: 100%;
  height: 44px;
  font-size: 0.9375rem;
  font-weight: 700;
  border-radius: 6px;
  background-color: var(--text-primary);
  color: var(--bg-surface);
  border: none;
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn-next-question:hover {
  opacity: 0.9;
}

/* Quiz Scorecard Final Screen */
.quiz-scorecard {
  text-align: center;
  padding: 24px 8px;
  display: none;
}

.quiz-scorecard.show {
  display: block;
}

.score-number {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 12px;
}

.score-headline {
  font-size: 1.375rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.score-description {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 24px;
}

.score-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-restart {
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 700;
  border-radius: 6px;
  background-color: var(--text-primary);
  color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.15s ease;
}

.btn-restart:hover,
.btn-restart:focus-visible {
  opacity: 0.9;
}

/* ==========================================================================
   Reference Rules Breakdown & Tables
   ========================================================================== */
.rules-section {
  margin-top: 48px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 36px;
}

.rules-section h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.rules-subhead {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.rules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 36px;
}

@media (min-width: 640px) {
  .rules-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.rule-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 18px;
}

.rule-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.rule-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.rule-card ul {
  padding-left: 20px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.penalties-box {
  background-color: var(--bg-surface);
  border: 2px solid var(--status-no-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 36px;
}

.penalties-box h3 {
  color: var(--status-no-border);
  font-size: 1.125rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.penalties-box p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  padding: 24px 16px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-inner {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer a {
  color: var(--text-secondary);
  text-decoration: underline;
}

.footer a:hover {
  color: var(--text-primary);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}