/* ============================================================
   JABES Landing Page — standalone marketing page.
   Reuses design tokens (--color-*, --radius-*, --shadow-*) defined in
   styles.css's :root block; everything below is layout/composition only.
   ============================================================ */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Segoe UI', 'Noto Sans KR', Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.6;
}

h1, h2, h3 { color: var(--color-text-strong); line-height: 1.3; margin: 0 0 0.5em; }
p { margin: 0 0 1em; }

/* ============================================================
   Nav
   ============================================================ */
.lp-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.lp-nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.lp-logo {
  font-family: Georgia, serif;
  font-style: italic;
  font-weight: bold;
  font-size: 1.6rem;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 1px;
}
.lp-nav-links {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}
.lp-nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 600;
}
.lp-nav-links a:hover { color: var(--color-primary); }
.lp-nav-actions { display: flex; align-items: center; gap: 14px; }
.lp-lang-switch {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
}
.lp-lang-switch:hover { background: var(--color-bg); color: var(--color-text); }

/* ============================================================
   Buttons
   ============================================================ */
.lp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 700;
  border-radius: 999px;
  padding: 9px 20px;
  font-size: 14px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.lp-btn-primary { background: var(--color-primary); color: #fff; }
.lp-btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.lp-btn-ghost { background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-primary); }
.lp-btn-ghost:hover { background: var(--color-primary-soft); }
.lp-btn-lg { padding: 14px 30px; font-size: 16px; }

/* ============================================================
   Hero
   ============================================================ */
.lp-hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 28px 88px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.lp-eyebrow {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.lp-hero h1 {
  font-size: 2.5rem;
  letter-spacing: -0.5px;
}
.lp-lead {
  font-size: 17px;
  color: var(--color-text-muted);
  max-width: 54ch;
}
.lp-hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.lp-hero-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevated);
}

/* ============================================================
   Sections
   ============================================================ */
.lp-section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 28px;
}
.lp-section-alt { background: var(--color-bg); max-width: none; }
.lp-section-alt > * { max-width: 1120px; margin-left: auto; margin-right: auto; }
.lp-section h2 {
  font-size: 1.9rem;
  text-align: center;
  margin-bottom: 40px;
}
.lp-section-lead {
  max-width: 74ch;
  margin: 0 auto 36px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 16px;
}
/* About */
.lp-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.lp-about-grid h3 { font-size: 1.15rem; color: var(--color-primary); }
.lp-about-grid p { color: var(--color-text-muted); }

/* Steps */
.lp-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.lp-step {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 28px 24px;
}
.lp-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 16px;
}
.lp-step h3 { font-size: 1.05rem; }
.lp-step p { color: var(--color-text-muted); font-size: 14.5px; margin: 0; }

/* Features */
.lp-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.lp-feature {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  box-shadow: var(--shadow-card);
}
.lp-feature i {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 14px;
  display: block;
}
.lp-feature h3 { font-size: 1rem; }
.lp-feature p { color: var(--color-text-muted); font-size: 14px; margin: 0; }

/* FAQ */
.lp-faq { max-width: 780px; margin: 0 auto; }
.lp-faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 18px 4px;
}
.lp-faq-item summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 15.5px;
  color: var(--color-text-strong);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.lp-faq-item summary::-webkit-details-marker { display: none; }
.lp-faq-item summary::after {
  content: '+';
  font-size: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-left: 12px;
}
.lp-faq-item[open] summary::after { content: '\2212'; }
.lp-faq-item p {
  margin: 12px 0 0;
  color: var(--color-text-muted);
  font-size: 14.5px;
}

/* Footer */
.lp-footer {
  border-top: 1px solid var(--color-border);
  padding: 28px;
}
.lp-footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13.5px;
  color: var(--color-text-subtle);
}
.lp-footer-brand {
  font-family: Georgia, serif;
  font-style: italic;
  font-weight: bold;
  color: var(--color-text-muted);
}
.lp-footer-inner a { color: var(--color-text-subtle); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .lp-nav-links { display: none; }
  .lp-hero { grid-template-columns: 1fr; padding-top: 48px; }
  .lp-hero-image { order: -1; max-width: 320px; margin: 0 auto; }
  .lp-about-grid { grid-template-columns: 1fr; gap: 32px; }
  .lp-steps { grid-template-columns: 1fr; }
  .lp-features { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .lp-hero h1 { font-size: 1.9rem; }
  .lp-features { grid-template-columns: 1fr; }
  .lp-nav-inner { padding: 12px 18px; }
}