:root {
  --navy: #0a1628;
  --navy-mid: #0f2847;
  --navy-light: #1a3a5c;
  --gold: #D4A853;
  --gold-dark: #B8892E;
  --gold-glow: rgba(212, 168, 83, 0.25);
  --text: #1A2332;
  --text-muted: #5C6778;
  --text-light: rgba(255, 255, 255, 0.75);
  --border: #D8E0EA;
  --bg: #F0F3F8;
  --white: #FFFFFF;
  --success: #2F855A;
  --danger: #C53030;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --section-gap: 80px;
}

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

html { scroll-behavior: smooth; font-size: 17px; }

body {
  font-family: 'Noto Sans KR', -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  letter-spacing: -0.02em;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: var(--section-gap) 0; }

.eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 12px;
}

.section-head {
  text-align: center;
  max-width: 520px;
  margin: 0 auto 40px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 700;
  color: var(--navy-mid);
  line-height: 1.35;
  margin-bottom: 8px;
}

.section-head p {
  font-size: 1rem;
  color: var(--text-muted);
}

.section-head--light h2 { color: var(--white); }
.section-head--light p { color: var(--text-light); }
.section-head--light .eyebrow { color: var(--gold); }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(212, 168, 83, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-text {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
}

.logo-text.light { font-size: 1.5rem; }

.header-badge {
  font-size: 0.75rem;
  color: var(--text-light);
  padding: 5px 12px;
  border: 1px solid rgba(212, 168, 83, 0.3);
  border-radius: 999px;
}

.header-cta {
  display: none;
}

.btn-cta--sm {
  padding: 10px 18px;
  font-size: 0.9375rem;
}

/* CTA Button */
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #E0B85C 0%, var(--gold) 50%, var(--gold-dark) 100%);
  color: var(--navy);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.0625rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
  box-shadow: 0 4px 20px var(--gold-glow);
  transition: transform 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

.btn-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(212, 168, 83, 0.4);
}

.btn-cta--wide { width: 100%; max-width: 320px; }

.btn-cta--hero {
  width: 100%;
  max-width: 280px;
  padding: 16px 28px;
  font-size: 1.0625rem;
}

.submit-btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none !important; }

/* Hero — dedicated layout (OG is meta-only) */
.hero {
  position: relative;
  background: linear-gradient(165deg, var(--navy) 0%, var(--navy-mid) 55%, #122a4a 100%);
  padding: 48px 0 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 45% at 85% 25%, rgba(212, 168, 83, 0.1) 0%, transparent 70%),
    radial-gradient(ellipse 40% 35% at 10% 80%, rgba(26, 58, 92, 0.5) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  padding-bottom: 40px;
}

.hero-content {
  max-width: 480px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.06em;
  padding: 6px 14px;
  margin-bottom: 18px;
  border: 1px solid rgba(212, 168, 83, 0.35);
  border-radius: 999px;
  background: rgba(212, 168, 83, 0.08);
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5.5vw, 3.5rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.12;
  margin-bottom: 14px;
  letter-spacing: -0.03em;
}

.hero-lead {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 16px;
  line-height: 1.5;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 28px;
  line-height: 1.75;
}

.hero-desc strong { color: var(--white); }

.hero-visual img {
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.35));
}

.hero-features {
  position: relative;
  border-top: 1px solid rgba(212, 168, 83, 0.18);
  background: rgba(0, 0, 0, 0.15);
  padding: 20px 0;
}

.hero-features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-feature-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212, 168, 83, 0.12);
  border: 1px solid rgba(212, 168, 83, 0.25);
  border-radius: 10px;
  font-size: 1rem;
  color: var(--gold);
}

.hero-feature strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
}

.hero-feature span {
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.3;
}

/* Summary */
.summary { background: var(--white); }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.summary-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.summary-item:hover {
  border-color: var(--gold);
  box-shadow: 0 4px 16px rgba(212, 168, 83, 0.1);
}

.summary-item dt {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gold-dark);
  margin-bottom: 6px;
}

.summary-item dd {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--navy-mid);
}

/* Form */
.form-section {
  background: linear-gradient(160deg, var(--navy-mid) 0%, var(--navy) 100%);
}

.form-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 36px;
  align-items: start;
  max-width: 920px;
  margin: 0 auto;
}

.form-checklist { list-style: none; }

.form-checklist li {
  position: relative;
  padding: 14px 0 14px 28px;
  font-size: 0.9375rem;
  color: var(--text-light);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.form-checklist li:last-child { border-bottom: none; }

.form-checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}

.form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 8px;
}

.form-group label .req {
  color: var(--gold-dark);
  font-size: 0.75rem;
  margin-left: 4px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1.0625rem;
  font-family: inherit;
  background: var(--bg);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--gold);
  background: var(--white);
  box-shadow: 0 0 0 3px var(--gold-glow);
}

.form-group input.error,
.form-group select.error { border-color: var(--danger); }

.field-error {
  color: var(--danger);
  font-size: 0.8125rem;
  margin-top: 6px;
  display: none;
}

.field-error.show { display: block; }

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 4px 0 22px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.consent input {
  margin-top: 3px;
  accent-color: var(--gold-dark);
  flex-shrink: 0;
}

.form-footer {
  text-align: center;
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-card .btn-cta { max-width: none; color: var(--navy); }

/* Steps */
.steps { background: var(--white); }

.step-track {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.step-track::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--border));
  z-index: 0;
}

.step-track li {
  text-align: center;
  padding: 0 12px;
  position: relative;
  z-index: 1;
}

.step-no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  background: linear-gradient(135deg, var(--navy-light), var(--navy-mid));
  color: var(--gold);
  font-weight: 800;
  font-size: 1.25rem;
  border-radius: 50%;
  border: 2px solid var(--gold);
  box-shadow: 0 4px 16px rgba(15, 40, 71, 0.2);
}

.step-track strong {
  display: block;
  font-size: 1rem;
  color: var(--navy-mid);
  margin-bottom: 4px;
}

.step-track p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Footer */
.footer {
  background: var(--navy);
  color: var(--text-light);
  padding: 44px 0;
  text-align: center;
  border-top: 1px solid rgba(212, 168, 83, 0.15);
}

.footer-copy {
  margin-top: 16px;
  opacity: 0.5;
  font-size: 0.8125rem;
}

/* Mobile CTA */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 150;
  padding: 12px 16px;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(212, 168, 83, 0.2);
}

.mobile-cta .btn-cta { max-width: none; width: 100%; }

/* Toast */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--navy-mid);
  color: var(--white);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  max-width: 90vw;
  text-align: center;
}

.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

@media (min-width: 769px) {
  .header-cta { display: inline-flex; }
}

@media (max-width: 900px) {
  :root { --section-gap: 56px; }

  .hero { padding-top: 36px; }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
    padding-bottom: 28px;
  }

  .hero-content {
    max-width: none;
    order: 1;
  }

  .hero-visual {
    order: 0;
    max-width: 320px;
    margin: 0 auto;
  }

  .hero-visual img { max-width: 100%; }

  .btn-cta--hero {
    max-width: none;
    margin: 0 auto;
  }

  .hero-features-grid { grid-template-columns: repeat(2, 1fr); }

  .summary-grid { grid-template-columns: repeat(2, 1fr); }
  .form-layout { grid-template-columns: 1fr; }
  .form-aside { order: 2; }

  .step-track {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

  .step-track::before { display: none; }

  .step-track li {
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

  .step-track li:last-child { border-bottom: none; }
  .step-no { width: 44px; height: 44px; font-size: 1rem; margin: 0; flex-shrink: 0; }
}

@media (max-width: 768px) {
  html { font-size: 16px; }

  .header-inner { height: 52px; }

  .hero { padding-top: 28px; }

  .hero-grid { gap: 20px; padding-bottom: 24px; }

  .hero-visual { max-width: 260px; }

  .hero-eyebrow { margin-bottom: 14px; }

  .hero-desc { margin-bottom: 22px; font-size: 0.9375rem; }

  .hero-features { padding: 16px 0; }

  .hero-features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .hero-feature-icon {
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
  }

  .summary-grid { grid-template-columns: 1fr; }
  .form-card { padding: 24px 18px; }
  .btn-cta--wide { max-width: none; }
  .mobile-cta { display: block; }
  body { padding-bottom: 76px; }
  .toast { bottom: 88px; }
}

@media (max-width: 480px) {
  .hero-features-grid { grid-template-columns: 1fr 1fr; }
  .hero-feature span { display: none; }
}