/* ===== CERTPATH Publishing — Global Styles ===== */

:root {
  --primary: #1a365d;
  --primary-light: #2a4a7f;
  --accent: #e53e3e;
  --accent-hover: #c53030;
  --gold: #d69e2e;
  --bg: #f7fafc;
  --bg-card: #ffffff;
  --text: #2d3748;
  --text-light: #718096;
  --border: #e2e8f0;
  --success: #38a169;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
  --max-width: 1200px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-light); }

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

/* ===== Layout ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header {
  background: var(--primary);
  color: #fff;
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.logo span { color: var(--gold); }

nav a {
  color: rgba(255,255,255,0.85);
  margin-left: 28px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

nav a:hover { color: #fff; }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 80px 0 60px;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 32px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-align: center;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}

.btn-outline:hover {
  border-color: #fff;
  color: #fff;
  background: rgba(255,255,255,0.1);
}

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

.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
}

.btn-gold {
  background: var(--gold);
  color: var(--primary);
  font-weight: 700;
}

.btn-gold:hover {
  background: #b7791f;
  color: #fff;
}

.btn-sm { padding: 10px 20px; font-size: 0.9rem; }
.btn-lg { padding: 18px 40px; font-size: 1.1rem; }

/* ===== Books Grid ===== */
.section { padding: 64px 0; }
.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--primary);
}
.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 48px;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.book-card {
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.book-card-img {
  height: 240px;
  background: linear-gradient(135deg, var(--primary) 0%, #2b6cb0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 24px;
  text-align: center;
}

.book-card-body {
  padding: 24px;
}

.book-card-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--primary);
}

.book-card-body p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.book-card-features {
  list-style: none;
  margin-bottom: 20px;
}

.book-card-features li {
  padding: 4px 0;
  font-size: 0.9rem;
  color: var(--text);
}

.book-card-features li::before {
  content: "\2713";
  color: var(--success);
  font-weight: 700;
  margin-right: 8px;
}

.book-card-actions {
  display: flex;
  gap: 12px;
}

.book-card-actions .btn { flex: 1; text-align: center; }

/* ===== How It Works ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  text-align: center;
}

.step {
  padding: 32px 20px;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--primary);
}

.step p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  text-align: center;
  padding: 48px 24px;
  border-radius: 12px;
  margin: 32px 0;
}

.cta-banner h2 { font-size: 1.8rem; margin-bottom: 12px; }
.cta-banner p { opacity: 0.9; margin-bottom: 24px; font-size: 1.05rem; }

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding: 40px 0;
  text-align: center;
  font-size: 0.9rem;
}

.site-footer a { color: rgba(255,255,255,0.85); }
.site-footer a:hover { color: #fff; }

.footer-links {
  margin-bottom: 16px;
}

.footer-links a { margin: 0 16px; }

/* ===== Access Page ===== */
.access-wrapper {
  max-width: 480px;
  margin: 60px auto;
  background: var(--bg-card);
  padding: 48px 40px;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.access-wrapper h1 {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.access-wrapper .subtitle {
  color: var(--text-light);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
}

.error-msg {
  color: var(--accent);
  font-size: 0.85rem;
  margin-top: 6px;
  display: none;
}

.access-wrapper .btn { width: 100%; margin-top: 8px; }

/* ===== Book Landing Page ===== */
.book-hero {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: center;
  padding: 48px 0;
}

.book-cover-placeholder {
  width: 300px;
  height: 400px;
  background: linear-gradient(135deg, var(--primary), #2b6cb0);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  text-align: center;
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

.book-info h1 {
  font-size: 2.2rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.book-info .tagline {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 24px;
}

.book-info .feature-list {
  list-style: none;
  margin-bottom: 28px;
}

.book-info .feature-list li {
  padding: 6px 0;
  font-size: 1rem;
}

.book-info .feature-list li::before {
  content: "\2713";
  color: var(--success);
  font-weight: 700;
  margin-right: 10px;
}

.book-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== Quiz Styles ===== */
.quiz-container {
  max-width: 800px;
  margin: 40px auto;
  background: var(--bg-card);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 40px;
}

.quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border);
}

.quiz-header h1 { font-size: 1.5rem; color: var(--primary); }

.quiz-timer {
  background: var(--primary);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
}

.quiz-timer.warning { background: var(--accent); }

.quiz-progress {
  background: var(--border);
  border-radius: 100px;
  height: 8px;
  margin-bottom: 32px;
  overflow: hidden;
}

.quiz-progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: 100px;
  transition: width 0.3s;
}

.question-card {
  margin-bottom: 32px;
  padding: 24px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.question-card.answered { border-color: var(--primary); }
.question-card.correct { border-color: var(--success); background: #f0fff4; }
.question-card.incorrect { border-color: var(--accent); background: #fff5f5; }

.question-number {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.question-text {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.options-list { list-style: none; }

.options-list li {
  padding: 12px 16px;
  margin-bottom: 8px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
  font-size: 0.95rem;
}

.options-list li:hover { border-color: var(--primary); background: #ebf4ff; }
.options-list li.selected { border-color: var(--primary); background: #ebf4ff; font-weight: 600; }
.options-list li.correct-answer { border-color: var(--success); background: #f0fff4; }
.options-list li.wrong-answer { border-color: var(--accent); background: #fff5f5; }

.explanation {
  margin-top: 12px;
  padding: 12px 16px;
  background: #f7fafc;
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text-light);
  display: none;
}

.explanation.show { display: block; }

/* ===== Results ===== */
.results-card {
  text-align: center;
  padding: 48px;
  background: var(--bg-card);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  margin: 40px auto;
}

.results-score {
  font-size: 4rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.results-card h2 { margin-bottom: 8px; color: var(--primary); }
.results-card p { color: var(--text-light); margin-bottom: 24px; }

.results-breakdown {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

.results-stat {
  padding: 16px;
  background: var(--bg);
  border-radius: var(--radius);
}

.results-stat .number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
}

.results-stat .label {
  font-size: 0.8rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== Animations ===== */

/* Keyframes */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: var(--shadow); }
  50% { box-shadow: 0 4px 24px rgba(26, 54, 93, 0.2); }
}

@keyframes countUp {
  from { opacity: 0; transform: scale(0.5); }
  to { opacity: 1; transform: scale(1); }
}

/* Hero entrance animations */
.hero h1 {
  animation: fadeInUp 0.8s ease-out both;
}

.hero p {
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero > .container > div {
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* Scroll-triggered reveal */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
[data-animate-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

[data-animate-stagger].visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
[data-animate-stagger].visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
[data-animate-stagger].visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
[data-animate-stagger].visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }

/* Book cover float */
.book-cover-placeholder {
  animation: float 4s ease-in-out infinite;
}

/* Access page entrance */
.access-wrapper {
  animation: fadeInScale 0.6s ease-out both;
}

/* Quiz answer hover enhancements */
.options-list li {
  transition: all 0.2s ease-out;
}

.options-list li:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.options-list li.selected {
  animation: pulseGlow 1.5s ease-in-out;
}

/* Step number bounce on reveal */
[data-animate-stagger].visible .step-number {
  animation: countUp 0.4s ease-out both;
}

[data-animate-stagger].visible .step:nth-child(1) .step-number { animation-delay: 0.1s; }
[data-animate-stagger].visible .step:nth-child(2) .step-number { animation-delay: 0.2s; }
[data-animate-stagger].visible .step:nth-child(3) .step-number { animation-delay: 0.3s; }
[data-animate-stagger].visible .step:nth-child(4) .step-number { animation-delay: 0.4s; }

/* Book card hover enhancement */
.book-card {
  transition: transform 0.3s ease-out, box-shadow 0.3s ease-out;
}

/* CTA banner */
.cta-banner[data-animate].visible {
  animation: fadeInScale 0.6s ease-out both;
}

/* Results card entrance */
.results-card {
  animation: fadeInScale 0.5s ease-out both;
}

.results-score {
  animation: countUp 0.6s ease-out 0.3s both;
}

/* Book landing page feature list stagger */
.feature-list li {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.book-hero.visible .feature-list li:nth-child(1) { transition-delay: 0.1s; opacity: 1; transform: translateX(0); }
.book-hero.visible .feature-list li:nth-child(2) { transition-delay: 0.15s; opacity: 1; transform: translateX(0); }
.book-hero.visible .feature-list li:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateX(0); }
.book-hero.visible .feature-list li:nth-child(4) { transition-delay: 0.25s; opacity: 1; transform: translateX(0); }
.book-hero.visible .feature-list li:nth-child(5) { transition-delay: 0.3s; opacity: 1; transform: translateX(0); }
.book-hero.visible .feature-list li:nth-child(6) { transition-delay: 0.35s; opacity: 1; transform: translateX(0); }
.book-hero.visible .feature-list li:nth-child(7) { transition-delay: 0.4s; opacity: 1; transform: translateX(0); }

/* Book landing cover slide in */
.book-hero.visible .book-cover-placeholder {
  animation: slideInLeft 0.7s ease-out both;
}

.book-hero.visible .book-info {
  animation: slideInRight 0.7s ease-out 0.2s both;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-animate] { opacity: 1; transform: none; }
  [data-animate-stagger] > * { opacity: 1; transform: none; }
  .feature-list li { opacity: 1; transform: none; }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .book-hero { grid-template-columns: 1fr; text-align: center; }
  .book-cover-placeholder { margin: 0 auto; width: 220px; height: 300px; }
  .book-actions { justify-content: center; }
  .books-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .results-breakdown { grid-template-columns: 1fr; }
  .quiz-container { padding: 24px 16px; }
  .access-wrapper { margin: 24px 16px; padding: 32px 24px; }
  nav { display: none; }
}