/* ══════════════════════════════════════════
   LANDING PAGE — theme-aware
   ══════════════════════════════════════════ */

/* ── Navbar ── */
.lp-navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0;
  background: var(--navbar-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all .3s;
}
.lp-navbar.scrolled { border-bottom-color: var(--border-default); padding: 12px 0; }
.lp-navbar .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.lp-logo { font-size: 24px; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: -0.5px; }
.lp-nav-links { display: flex; align-items: center; gap: 28px; }
.lp-nav-links a { color: var(--text-secondary); font-size: 14px; font-weight: 500; transition: color .2s; }
.lp-nav-links a:hover { color: var(--text-primary); }

/* ── Hero ── */
.lp-hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 120px 0 80px; position: relative; overflow: hidden;
}
.lp-hero::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle at 30% 40%, var(--primary-glow) 0%, transparent 50%),
              radial-gradient(circle at 70% 60%, rgba(139,92,246,.05) 0%, transparent 50%);
  animation: heroGlow 20s ease infinite;
}
@keyframes heroGlow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-5%, -3%); }
}
.lp-hero .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.lp-hero-content { max-width: 680px; }
.lp-hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; background: var(--primary-glow); border: 1px solid rgba(59,130,246,.2); border-radius: 40px; font-size: 13px; color: var(--primary); margin-bottom: 24px; }
.lp-hero h1 { font-size: clamp(40px, 5vw, 64px); font-weight: 800; line-height: 1.1; margin-bottom: 24px; letter-spacing: -1px; }
.lp-hero h1 .gradient-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.lp-hero p { font-size: 18px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 36px; max-width: 540px; }
.lp-hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

/* ── Stats bar ── */
.lp-stats {
  padding: 60px 0;
  border-top: 1px solid var(--border-default);
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-elevated);
}
.lp-stats .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.lp-stat-item .num { font-size: 36px; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.lp-stat-item .label { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }

/* ── Section ── */
.lp-section { padding: 100px 0; }
.lp-section .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.lp-section-alt { background: var(--bg-elevated); }
.lp-section-header { text-align: center; max-width: 600px; margin: 0 auto 60px; }
.lp-section-header .overline { font-size: 13px; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
.lp-section-header h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.5px; }
.lp-section-header p { font-size: 16px; color: var(--text-secondary); }

/* ── Features ── */
.lp-features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lp-feature-card { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-lg); padding: 32px; transition: all .3s; }
.lp-feature-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.lp-feature-card .icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 20px; }
.lp-feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.lp-feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ── Steps ── */
.lp-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; position: relative; }
.lp-steps::before { content: ''; position: absolute; top: 40px; left: calc(100%/6); right: calc(100%/6); height: 2px; background: var(--border-default); }
.lp-step { text-align: center; position: relative; }
.lp-step .step-num { width: 80px; height: 80px; border-radius: 50%; background: var(--gradient); display: flex; align-items: center; justify-content: center; font-size: 28px; font-weight: 800; color: #fff; margin: 0 auto 24px; position: relative; z-index: 1; }
.lp-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.lp-step p { font-size: 14px; color: var(--text-secondary); max-width: 280px; margin: 0 auto; }

/* ── Pricing ── */
.lp-pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; max-width: 800px; margin: 0 auto; }
.lp-pricing-card { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-lg); padding: 40px; text-align: center; transition: all .3s; }
.lp-pricing-card.featured { border-color: var(--primary); box-shadow: 0 0 40px var(--primary-glow); transform: scale(1.02); }
.lp-pricing-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.lp-pricing-card .price { font-size: 48px; font-weight: 800; margin: 16px 0; }
.lp-pricing-card .price span { font-size: 16px; color: var(--text-secondary); }
.lp-pricing-card ul { list-style: none; margin: 24px 0; }
.lp-pricing-card li { padding: 8px 0; font-size: 14px; color: var(--text-secondary); border-bottom: 1px solid var(--border-default); }
.lp-pricing-card li:last-child { border: none; }

/* ── Testimonials ── */
.lp-testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lp-testimonial { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius); padding: 28px; }
.lp-testimonial .stars { color: var(--warning); font-size: 14px; margin-bottom: 12px; }
.lp-testimonial .quote { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; font-style: italic; }
.lp-testimonial .author { display: flex; align-items: center; gap: 12px; }
.lp-testimonial .avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--gradient); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; color: #fff; }
.lp-testimonial .author-name { font-size: 14px; font-weight: 600; }
.lp-testimonial .author-role { font-size: 12px; color: var(--text-dim); }

/* ── FAQ ── */
.lp-faq { max-width: 720px; margin: 0 auto; }
.lp-faq-item { border: 1px solid var(--border-default); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; background: var(--bg-surface); }
.lp-faq-q { padding: 18px 24px; font-size: 15px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: background .2s; color: var(--text-primary); }
.lp-faq-q:hover { background: var(--bg-surface-hover); }
.lp-faq-q .arrow { transition: transform .2s; color: var(--text-dim); }
.lp-faq-item.active .lp-faq-q .arrow { transform: rotate(180deg); }
.lp-faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: all .3s; font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.lp-faq-item.active .lp-faq-a { padding: 0 24px 18px; max-height: 300px; }

/* ── About ── */
.lp-about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.lp-about-content h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; }
.lp-about-content p { font-size: 16px; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.7; }
.lp-about-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.lp-about-metric { background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius); padding: 24px; text-align: center; }
.lp-about-metric .val { font-size: 32px; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.lp-about-metric .lbl { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* ── CTA ── */
.lp-cta { padding: 100px 0; text-align: center; background: var(--bg-elevated); }
.lp-cta .container { max-width: 700px; margin: 0 auto; padding: 0 24px; }
.lp-cta h2 { font-size: 40px; font-weight: 800; margin-bottom: 16px; }
.lp-cta p { font-size: 16px; color: var(--text-secondary); margin-bottom: 32px; }

/* ── Footer ── */
.lp-footer { padding: 60px 0 24px; border-top: 1px solid var(--border-default); background: var(--bg-elevated); }
.lp-footer .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.lp-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.lp-footer-brand .lp-logo { font-size: 22px; margin-bottom: 12px; display: inline-block; }
.lp-footer-brand p { font-size: 14px; color: var(--text-secondary); max-width: 300px; }
.lp-footer h4 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-secondary); margin-bottom: 16px; }
.lp-footer ul { list-style: none; }
.lp-footer li { margin-bottom: 8px; }
.lp-footer li a { font-size: 14px; color: var(--text-dim); }
.lp-footer li a:hover { color: var(--text-primary); }
.lp-footer-bottom { border-top: 1px solid var(--border-default); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; }
.lp-footer-bottom p { font-size: 13px; color: var(--text-dim); }
.lp-footer-bottom .theme-switch { margin: 0; }

/* ── Auth page ── */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 40px 24px; }
.auth-card { width: 100%; max-width: 440px; background: var(--bg-surface); border: 1px solid var(--border-default); border-radius: var(--radius-lg); padding: 40px; }
.auth-card .auth-logo { text-align: center; margin-bottom: 32px; }
.auth-card .auth-logo a { font-size: 28px; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.auth-card h2 { font-size: 22px; font-weight: 700; text-align: center; margin-bottom: 8px; }
.auth-card .auth-subtitle { text-align: center; font-size: 14px; color: var(--text-secondary); margin-bottom: 28px; }
.auth-card .auth-footer { text-align: center; margin-top: 24px; font-size: 13px; color: var(--text-secondary); }
.auth-card .auth-footer a { font-weight: 600; }
.auth-card .auth-theme-toggle { display: flex; justify-content: center; margin-top: 16px; }
.auth-error { background: var(--danger-bg); border: 1px solid rgba(239,68,68,.2); border-radius: var(--radius-sm); padding: 12px 16px; margin-bottom: 20px; font-size: 13px; color: var(--danger); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .lp-features-grid, .lp-testimonials { grid-template-columns: repeat(2, 1fr); }
  .lp-stats .container { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .lp-footer-grid { grid-template-columns: repeat(2, 1fr); }
  .lp-about-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .lp-features-grid, .lp-steps, .lp-testimonials { grid-template-columns: 1fr; }
  .lp-pricing-grid { grid-template-columns: 1fr; }
  .lp-stats .container { grid-template-columns: 1fr; }
  .lp-nav-links { display: none; }
  .lp-footer-grid { grid-template-columns: 1fr; }
  .lp-footer-bottom { flex-direction: column; gap: 16px; }
}