/* Ilmuno.com — Warm Editorial Light Mode Stylesheet (Pure HTML/CSS First) */
@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg: #fbf9f5;
  --bg-alt: #f3efe6;
  --bg-card: #ffffff;
  --text-primary: #1e1e24;
  --text-secondary: #575661;
  --text-muted: #8b8a97;
  --border: #e6e2d8;
  --border-focus: #c7beaf;
  --primary: #4338ca;
  --primary-hover: #3730a3;
  --primary-light: #eef2ff;
  --amber: #d97706;
  --amber-light: #fef3c7;
  --sage: #059669;
  --sage-light: #d1fae5;
  --rose: #e11d48;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --shadow-subtle: 0 4px 20px -2px rgba(45, 35, 20, 0.05);
  --shadow-elevated: 0 20px 45px -10px rgba(45, 35, 20, 0.08), 0 0 1px 1px rgba(0, 0, 0, 0.04);
  --font-sans: 'Outfit', -apple-system, system-ui, sans-serif;
  --font-serif: 'Newsreader', Georgia, serif;
  --max-w: 1160px;
  --transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.bg-warm-pattern {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(217, 119, 6, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 90% 15%, rgba(67, 56, 202, 0.04) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(5, 150, 105, 0.04) 0%, transparent 50%);
}

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

.serif-highlight {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--primary);
}

/* Navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(251, 249, 245, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, #f59e0b, #4338ca);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-endorse {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 8px;
  border-radius: 6px;
  margin-left: 4px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}

.nav-menu a:hover {
  color: var(--primary);
}

.nav-cta-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Language Dropdown */
.ilmuno-lang-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.ilmuno-lang-select {
  appearance: none;
  -webkit-appearance: none;
  background: #ffffff;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 7px 28px 7px 12px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition);
}

.ilmuno-lang-select:hover, .ilmuno-lang-select:focus {
  border-color: var(--primary);
}

.ilmuno-lang-arrow {
  position: absolute;
  right: 10px;
  pointer-events: none;
  color: var(--text-muted);
  width: 12px;
  height: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(67, 56, 202, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1.5px);
  box-shadow: 0 6px 20px rgba(67, 56, 202, 0.4);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-primary);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-subtle);
}

.btn-secondary:hover {
  background-color: #faf8f5;
  border-color: var(--border-focus);
  transform: translateY(-1.5px);
}

.btn-lg {
  padding: 15px 30px;
  font-size: 1.05rem;
}

/* Hero Section */
.hero-section {
  padding: 90px 0 70px;
  position: relative;
}

.hero-content {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--amber-light);
  border: 1px solid #fde68a;
  color: #92400e;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 680px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

/* Hero Visual Showcase */
.hero-showcase {
  margin-top: 40px;
  position: relative;
}

.exam-preview-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-elevated);
  max-width: 920px;
  margin: 0 auto;
  position: relative;
}

.preview-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  text-align: left;
}

.exam-paper-mock {
  background: #fdfdfd;
  border: 1px solid #e2ded5;
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  font-size: 0.85rem;
}

.exam-mock-header {
  border-bottom: 2px solid #e6e2d8;
  padding-bottom: 12px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mock-school-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: #1e1e24;
}

.mock-qr-tag {
  background: #f1efe9;
  border: 1px solid #dcd7cc;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.mock-question {
  margin-bottom: 14px;
}

.mock-q-title {
  font-weight: 600;
  margin-bottom: 6px;
  color: #2b2b36;
}

.mock-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  color: #575661;
}

.preview-callouts {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.callout-item {
  display: flex;
  gap: 16px;
}

.callout-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.callout-text h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

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

/* Steps Section */
.steps-section {
  padding: 90px 0;
  background: var(--bg-alt);
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 54px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(2.1rem, 3.8vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.steps-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-subtle);
  transition: transform var(--transition);
}

.step-card:hover {
  transform: translateY(-4px);
}

.step-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-style: italic;
  font-weight: 600;
  color: var(--amber);
  margin-bottom: 12px;
  line-height: 1;
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Pure Native HTML <details> FAQ (Zero JS) */
.faq-section {
  padding: 90px 0;
}

.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

details.faq-box {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}

details.faq-box[open] {
  border-color: var(--primary);
}

summary.faq-btn {
  padding: 20px 24px;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  user-select: none;
}

summary.faq-btn::-webkit-details-marker {
  display: none;
}

.faq-chevron {
  width: 20px;
  height: 20px;
  transition: transform var(--transition);
  color: var(--text-muted);
  flex-shrink: 0;
}

details[open] summary .faq-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Final CTA Card */
.final-cta-section {
  padding: 60px 0 100px;
}

.final-cta-card {
  background: linear-gradient(135deg, #3730a3 0%, #1e1b4b 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(55, 48, 163, 0.3);
}

.final-cta-card h2 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.final-cta-card p {
  font-size: 1.15rem;
  color: #c7d2fe;
  max-width: 600px;
  margin: 0 auto 36px;
}

.final-cta-card .btn-primary {
  background-color: #ffffff;
  color: #3730a3;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.final-cta-card .btn-primary:hover {
  background-color: #f8fafc;
  transform: translateY(-2px);
}

/* Footer */
.ilmuno-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.ilmuno-footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.ilmuno-footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

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

@media (max-width: 992px) {
  .preview-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .steps-cards-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-menu {
    display: none;
  }
}

@media (max-width: 640px) {
  .steps-cards-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions {
    flex-direction: column;
  }
}