/* ==========================================================================
   반도체 성장률 트래커 - 랜딩 페이지 (index.html) 전용 스타일
   growth-tracker.css의 다크 네이비 + 시안 테마를 그대로 계승
   ========================================================================== */

:root {
  --lp-bg-deep: #05070f;
  --lp-bg-primary: #0a0e1a;
  --lp-bg-secondary: #10182b;
  --lp-bg-tertiary: #17223d;
  --lp-border: #223353;
  --lp-border-soft: #1b2740;

  --lp-text-primary: #eaf2ff;
  --lp-text-secondary: #9db2d6;
  --lp-text-tertiary: #6a7ea3;

  --lp-cyan: #22d3ee;
  --lp-cyan-soft: rgba(34, 211, 238, 0.12);
  --lp-cyan-glow: rgba(34, 211, 238, 0.35);
  --lp-blue: #3b82f6;
  --lp-purple: #818cf8;

  --lp-up: #34d399;
  --lp-hot: #fbbf24;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 26px;

  --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Roboto Mono', monospace;
}

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

html, body { height: 100%; }

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at 20% -10%, rgba(34, 211, 238, 0.08), transparent 45%),
              radial-gradient(circle at 100% 0%, rgba(129, 140, 248, 0.08), transparent 40%),
              var(--lp-bg-deep);
  color: var(--lp-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; }

.lp-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------- Buttons ---------------- */
.lp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 700;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.lp-btn-primary {
  background: linear-gradient(135deg, var(--lp-cyan), var(--lp-blue));
  color: #061018;
  box-shadow: 0 0 18px var(--lp-cyan-glow);
}
.lp-btn-primary:hover { transform: translateY(-2px); }

.lp-btn-outline {
  background: transparent;
  color: var(--lp-text-primary);
  border: 1.5px solid var(--lp-border);
}
.lp-btn-outline:hover { border-color: var(--lp-cyan); color: var(--lp-cyan); }

.lp-btn-ghost {
  background: var(--lp-bg-secondary);
  color: var(--lp-text-primary);
  border: 1px solid var(--lp-border);
}
.lp-btn-ghost:hover { border-color: var(--lp-cyan); }

.lp-btn-small { padding: 9px 18px; font-size: 13px; }
.lp-btn-large { padding: 15px 30px; font-size: 15.5px; }
.pricing-cta { width: 100%; padding: 13px 20px; font-size: 14px; margin-top: 22px; }

/* ---------------- Header ---------------- */
#lp-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--lp-border-soft);
}

#lp-header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

#lp-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.lp-brand-icon {
  font-size: 24px;
  color: var(--lp-cyan);
  filter: drop-shadow(0 0 8px var(--lp-cyan-glow));
}

.lp-brand-text {
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.3px;
}

.lp-brand-text-en {
  font-size: 12px;
  font-weight: 700;
  color: var(--lp-text-tertiary);
  margin-left: 4px;
}

#lp-nav {
  display: flex;
  gap: 28px;
  margin-left: 8px;
  flex: 1;
}

#lp-nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--lp-text-secondary);
  transition: color 0.15s;
}
#lp-nav a:hover { color: var(--lp-text-primary); }

#lp-header-actions { flex-shrink: 0; }

#lp-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  background: transparent;
  border: 1px solid var(--lp-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
}
#lp-nav-toggle span {
  display: block;
  width: 16px;
  height: 2px;
  margin: 0 auto;
  background: var(--lp-text-primary);
  transition: transform 0.2s, opacity 0.2s;
}
#lp-nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
#lp-nav-toggle.open span:nth-child(2) { opacity: 0; }
#lp-nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#lp-mobile-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 0 18px 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
#lp-mobile-nav.open { max-height: 320px; }
#lp-mobile-nav a {
  padding: 12px 6px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--lp-text-secondary);
  border-bottom: 1px solid var(--lp-border-soft);
}
#lp-mobile-nav a.lp-btn {
  margin-top: 10px;
  text-align: center;
  border-bottom: none;
  color: #061018;
}

/* ---------------- Hero ---------------- */
#hero {
  padding: 90px 0 70px;
  text-align: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  padding: 7px 16px;
  border-radius: 999px;
  background: var(--lp-cyan-soft);
  border: 1px solid rgba(34, 211, 238, 0.3);
  color: var(--lp-cyan);
  font-size: 12.5px;
  font-weight: 700;
  margin-bottom: 22px;
}

.hero-title {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.5px;
  max-width: 780px;
}

.hero-highlight {
  background: linear-gradient(90deg, var(--lp-cyan), var(--lp-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  margin-top: 22px;
  max-width: 620px;
  font-size: 15.5px;
  color: var(--lp-text-secondary);
}

.hero-cta-row {
  display: flex;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stats li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-stats strong {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--lp-cyan);
}

.hero-stats span {
  font-size: 12.5px;
  color: var(--lp-text-tertiary);
}

/* ---------------- Trust indicators ---------------- */
#trust { padding: 40px 0 10px; }

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.trust-card {
  background: var(--lp-bg-secondary);
  border: 1px solid var(--lp-border);
  border-radius: var(--radius-lg);
  padding: 22px 22px;
  text-align: center;
}

.trust-icon {
  font-size: 26px;
  display: inline-block;
  margin-bottom: 12px;
}

.trust-card h3 {
  font-size: 14.5px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}

.trust-card p {
  font-size: 12.5px;
  color: var(--lp-text-secondary);
  line-height: 1.6;
}

/* ---------------- Section heading (shared) ---------------- */
.lp-section-heading {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 48px;
}

.lp-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--lp-cyan);
  margin-bottom: 10px;
}

.lp-section-heading h2 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.4px;
}

.lp-section-desc {
  margin-top: 12px;
  font-size: 14.5px;
  color: var(--lp-text-secondary);
}

/* ---------------- Features ---------------- */
#features { padding: 70px 0; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--lp-bg-secondary);
  border: 1px solid var(--lp-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: var(--lp-cyan);
  transform: translateY(-3px);
}

.feature-icon {
  font-size: 30px;
  display: inline-block;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 13.5px;
  color: var(--lp-text-secondary);
  line-height: 1.65;
}

/* ---------------- Pricing ---------------- */
#pricing {
  padding: 70px 0;
  background: linear-gradient(180deg, transparent, rgba(34, 211, 238, 0.03), transparent);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  background: var(--lp-bg-secondary);
  border: 1px solid var(--lp-border);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
}

.pricing-card-featured {
  border-color: var(--lp-cyan);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.15);
  transform: scale(1.03);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--lp-hot), #f59e0b);
  color: #221400;
  font-size: 11.5px;
  font-weight: 800;
  padding: 5px 16px;
  border-radius: 999px;
  box-shadow: 0 0 14px rgba(251, 191, 36, 0.4);
}

.pricing-name {
  font-size: 19px;
  font-weight: 800;
}

.pricing-desc {
  margin-top: 6px;
  font-size: 13px;
  color: var(--lp-text-tertiary);
}

.pricing-price {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  color: var(--lp-text-primary);
}

.pricing-price span {
  font-size: 13px;
  font-weight: 500;
  color: var(--lp-text-tertiary);
  margin-left: 4px;
}

.pricing-price-alt {
  margin-top: 4px;
  font-size: 13px;
  color: var(--lp-text-tertiary);
}

.pricing-price-alt span {
  margin-left: 2px;
}

.pricing-features {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.pricing-features li {
  font-size: 13.5px;
  color: var(--lp-text-secondary);
  line-height: 1.5;
}

.pricing-features li.feature-disabled {
  color: var(--lp-text-tertiary);
  opacity: 0.7;
}

.pricing-note {
  margin-top: 30px;
  text-align: center;
  font-size: 12px;
  color: var(--lp-text-tertiary);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* ---------------- Newsletter Promo ---------------- */
#newsletter-promo {
  padding: 60px 0;
}

.newsletter-promo-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  padding: 46px 32px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.12), rgba(129, 140, 248, 0.08));
  border: 1px solid var(--lp-border);
  border-radius: var(--radius-xl);
}

.newsletter-promo-icon {
  font-size: 32px;
}

.newsletter-promo-inner h2 {
  font-size: 24px;
  font-weight: 800;
}

.newsletter-promo-inner p {
  max-width: 480px;
  font-size: 14.5px;
  color: var(--lp-text-secondary);
}

.newsletter-promo-inner .lp-btn { margin-top: 6px; }

/* ---------------- Contact ---------------- */
#contact {
  padding: 80px 0;
  text-align: center;
}

.contact-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.contact-inner h2 {
  font-size: 26px;
  font-weight: 800;
}

.contact-inner p {
  font-size: 14.5px;
  color: var(--lp-text-secondary);
  max-width: 480px;
}

.contact-inner .lp-btn { margin-top: 10px; }

/* ---------------- Footer ---------------- */
#lp-footer {
  border-top: 1px solid var(--lp-border-soft);
  padding: 48px 0 30px;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 28px;
  border-bottom: 1px dashed var(--lp-border);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-links {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  color: var(--lp-text-secondary);
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--lp-text-primary); }

.footer-disclaimer {
  margin-top: 28px;
  padding: 22px 24px;
  background: var(--lp-bg-secondary);
  border: 1px solid var(--lp-border);
  border-radius: var(--radius-md);
}

.disclaimer-heading {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--lp-text-primary);
  margin-bottom: 6px;
}

.disclaimer-heading:not(:first-child) { margin-top: 16px; }

.footer-disclaimer p {
  font-size: 12px;
  line-height: 1.75;
  color: var(--lp-text-tertiary);
}

.footer-copyright {
  margin-top: 22px;
  text-align: center;
  font-size: 11.5px;
  color: var(--lp-text-tertiary);
}

/* ==========================================================================
   반응형
   ========================================================================== */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .pricing-card-featured { transform: none; order: -1; }
  .hero-title { font-size: 34px; }
}

@media (max-width: 760px) {
  #lp-nav, #lp-header-actions { display: none; }
  #lp-nav-toggle { display: flex; }
  #lp-mobile-nav { display: flex; }

  #hero { padding: 56px 0 46px; }
  .hero-title { font-size: 27px; }
  .hero-subtitle { font-size: 14px; }
  .hero-stats { gap: 26px; margin-top: 40px; }

  .features-grid { grid-template-columns: 1fr; }
  .lp-section-heading h2 { font-size: 23px; }

  #features, #pricing { padding: 50px 0; }
  #trust { padding: 24px 0 6px; }
  #contact { padding: 56px 0; }

  .footer-top { flex-direction: column; align-items: flex-start; }
}