/* Royal Protocol Guide - Stylesheet */
:root {
  --color-bg: #f8f5f0;
  --color-surface: #ffffff;
  --color-surface-alt: #f0ebe3;
  --color-text: #1a1a2e;
  --color-text-muted: #5a5a72;
  --color-accent: #b8860b;
  --color-accent-dark: #8b6508;
  --color-navy: #1a2744;
  --color-navy-light: #2a3a5c;
  --color-border: #d6cfc4;
  --color-success: #2d6a4f;
  --color-error: #9b2226;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(26, 39, 68, 0.08);
  --shadow-md: 0 4px 12px rgba(26, 39, 68, 0.1);
  --shadow-lg: 0 8px 30px rgba(26, 39, 68, 0.12);
  --max-width: 1160px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-accent-dark);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--color-navy);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius);
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus {
  top: 16px;
}

/* Header */
.site-header {
  background: var(--color-navy);
  color: #fff;
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
}
.brand:hover {
  color: var(--color-accent);
  text-decoration: none;
}
.brand-mark {
  color: var(--color-accent);
  flex-shrink: 0;
}
.site-nav {
  display: flex;
  gap: 24px;
}
.site-nav a {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.site-nav a:hover {
  color: #fff;
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: #fff;
  padding: 72px 0 56px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}
.lede {
  font-size: 1.15rem;
  max-width: 640px;
  margin: 0 auto;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
}

/* Section titles */
.section-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 24px;
  text-align: center;
}

/* Selector */
.selector-section {
  padding: 48px 0 32px;
}
.selector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}
.selector-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
}
.selector-btn:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.selector-btn.active {
  border-color: var(--color-accent);
  background: var(--color-navy);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.selector-icon {
  font-size: 1.6rem;
  line-height: 1;
}
.selector-label {
  font-weight: 600;
}

/* Protocol section */
.protocol-section {
  padding: 32px 0 48px;
}
.protocol-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: start;
}
.protocol-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.protocol-header {
  padding: 28px 28px 20px;
  border-bottom: 1px solid var(--color-border);
}
.protocol-header h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-navy);
  margin-bottom: 6px;
}
.protocol-subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Tabs */
.protocol-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  overflow-x: auto;
}
.tab-btn {
  flex: 1;
  padding: 14px 16px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.tab-btn:hover {
  color: var(--color-text);
  background: rgba(184, 134, 11, 0.06);
}
.tab-btn.active {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent);
  background: var(--color-surface);
}

.tab-panels {
  padding: 24px 28px;
}
.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
  animation: fadeIn 0.25s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.tab-panel h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-navy);
  margin-bottom: 14px;
}
.protocol-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.protocol-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.95rem;
  line-height: 1.6;
}
.protocol-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

.protocol-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 28px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}
.save-status {
  font-size: 0.85rem;
  color: var(--color-success);
  font-weight: 500;
}

/* Side panel */
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.side-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}
.side-card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-navy);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
}
.fact-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  font-size: 0.9rem;
}
.fact-list dt {
  font-weight: 600;
  color: var(--color-text-muted);
}
.fact-list dd {
  color: var(--color-text);
}
.mistake-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mistake-list li {
  font-size: 0.9rem;
  padding-left: 18px;
  position: relative;
}
.mistake-list li::before {
  content: '✕';
  position: absolute;
  left: 0;
  color: var(--color-error);
  font-weight: 700;
}
.side-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Content section */
.content-section {
  padding: 48px 0;
  background: var(--color-surface-alt);
}
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.content-block {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.content-block h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-navy);
  margin-bottom: 12px;
}
.content-block p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 10px;
}
.content-block p:last-child {
  margin-bottom: 0;
}

/* Scenario */
.scenario-section {
  padding: 48px 0;
}
.scenario-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 32px;
}
.scenario-timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-border);
}
.scenario-step {
  position: relative;
  padding: 16px 0 16px 24px;
}
.scenario-step::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 22px;
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  border: 3px solid var(--color-bg);
}
.step-time {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  background: rgba(184, 134, 11, 0.1);
  padding: 2px 10px;
  border-radius: 20px;
  margin-bottom: 6px;
}
.scenario-step h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-navy);
  margin-bottom: 6px;
}
.scenario-step p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* FAQ */
.faq-section {
  padding: 48px 0;
  background: var(--color-surface-alt);
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.faq-item {
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.faq-item summary {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-navy);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--color-accent);
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  content: '−';
}
.faq-item p {
  padding: 0 20px 16px;
  font-size: 0.93rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Footer */
.site-footer {
  background: var(--color-navy);
  color: rgba(255,255,255,0.7);
  padding: 32px 0;
  margin-top: auto;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
.footer-note {
  font-size: 0.85rem;
  max-width: 500px;
}
.footer-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-nav a {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  text-decoration: none;
}
.footer-nav a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}
.footer-copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

/* Responsive */
@media (max-width: 900px) {
  .protocol-layout {
    grid-template-columns: 1fr;
  }
  .side-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
  .hero {
    padding: 48px 0 40px;
  }
  .selector-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .protocol-tabs {
    flex-wrap: nowrap;
  }
  .tab-btn {
    font-size: 0.82rem;
    padding: 12px 10px;
  }
  .tab-panels {
    padding: 20px;
  }
  .protocol-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .protocol-actions .btn {
    justify-content: center;
  }
  .site-nav {
    gap: 14px;
  }
  .site-nav a {
    font-size: 0.85rem;
  }
  .brand-text {
    font-size: 1rem;
  }
}

@media (max-width: 380px) {
  .selector-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .selector-btn {
    padding: 14px 8px;
  }
}

/* Print */
@media print {
  .site-header, .site-footer, .selector-section, .protocol-actions, .side-panel, .scenario-section, .faq-section, .content-section {
    display: none;
  }
  .protocol-card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
  .tab-panel {
    display: block !important;
    page-break-inside: avoid;
  }
  .tab-panel:not(:first-child) {
    margin-top: 20px;
  }
  body {
    background: #fff;
    color: #000;
  }
}

/* Focus styles */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

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


/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}