/* ========================================
   SEBIT — Premium Health & Wellness Website
   CSS Style Sheet
   ======================================== */

/* ── Variables ── */
:root {
  --blue-primary: #1a56db;
  --blue-dark: #1341b0;
  --blue-light: #3b82f6;
  --blue-xlight: #eff6ff;
  --blue-glow: rgba(26, 86, 219, 0.15);

  --night-dark: #0f172a;
  --night-mid: #1e293b;
  --night-soft: #334155;

  --red-accent: #e53e3e;
  --red-light: #fed7d7;

  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-800: #1e293b;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.14);
  --shadow-blue: 0 8px 32px rgba(26,86,219,0.20);

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.18s ease;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Section Common ── */
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header.light .section-title,
.section-header.light .section-desc { color: var(--white); }
.section-header.light .section-tag {
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
  border-color: rgba(255,255,255,0.2);
}

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--blue-xlight);
  color: var(--blue-primary);
  border: 1px solid rgba(26,86,219,0.15);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--night-dark);
  margin-bottom: 20px;
}
.section-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--red-accent), var(--blue-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-primary);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(26,86,219,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--blue-primary);
  border: 2px solid var(--blue-primary);
}
.btn-outline:hover {
  background: var(--blue-primary);
  color: var(--white);
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* ======================================================
   NAVBAR
   ====================================================== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(26,86,219,0.08);
  transition: var(--transition);
}
#navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

/* 네비 SEBIT 로고 */
.sebit-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}
.footer-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  /* sebit-logo-clean.png 사용 — 필터 불필요 */
}
.adn-logo-img {
  width: 220px;
  height: auto;
  object-fit: contain;
  animation: floatCard 4s ease-in-out infinite;
  filter: drop-shadow(0 8px 24px rgba(0,0,0,0.12));
}
.adn-logo-img-lg {
  width: 240px;
  height: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-links li a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: var(--transition-fast);
}
.nav-links li a:hover { color: var(--blue-primary); background: var(--blue-xlight); }
.nav-links li a.nav-cta {
  background: var(--blue-primary);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 100px;
  margin-left: 8px;
}
.nav-links li a.nav-cta:hover {
  background: var(--blue-dark);
}

/* Language Switcher */
.lang-switcher {
  position: relative;
  flex-shrink: 0;
}
.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 100px;
  border: 1.5px solid var(--gray-200);
  background: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-800);
  transition: var(--transition-fast);
}
.lang-btn:hover { border-color: var(--blue-primary); color: var(--blue-primary); }
.lang-arrow {
  font-size: 0.65rem;
  transition: transform 0.2s;
  color: var(--gray-400);
}
.lang-switcher.open .lang-arrow { transform: rotate(180deg); }

.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  overflow: hidden;
  z-index: 100;
  animation: dropIn 0.18s ease;
}
.lang-switcher.open .lang-dropdown { display: block; }

@keyframes dropIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.lang-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 11px 18px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--gray-800);
  background: transparent;
  transition: var(--transition-fast);
  border-bottom: 1px solid var(--gray-100);
}
.lang-option:last-child { border-bottom: none; }
.lang-option:hover { background: var(--blue-xlight); color: var(--blue-primary); }
.lang-option.active { color: var(--blue-primary); font-weight: 600; background: var(--blue-xlight); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}
.hamburger span {
  display: block;
  width: 22px; height: 2.5px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  background: var(--white);
  border-top: 1px solid var(--gray-100);
  padding: 16px 24px 24px;
}
.mobile-menu.open { display: block; }
.mobile-menu ul { margin-bottom: 16px; }
.mobile-menu ul li { border-bottom: 1px solid var(--gray-100); }
.mobile-menu ul li a {
  display: block;
  padding: 13px 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-800);
  transition: var(--transition-fast);
}
.mobile-menu ul li a:hover { color: var(--blue-primary); padding-left: 6px; }
.mobile-lang {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.mobile-lang .lang-option {
  flex: 1;
  border: 1.5px solid var(--gray-200);
  border-radius: 100px;
  text-align: center;
  padding: 8px 12px;
  font-size: 0.82rem;
  min-width: 100px;
}

/* ======================================================
   HERO
   ====================================================== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 84px;
  overflow: hidden;
  background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 50%, #f0f9ff 100%);
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.shape-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(26,86,219,0.12), transparent);
  top: -100px; right: -100px;
  animation: floatShape 8s ease-in-out infinite;
}
.shape-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(229,62,62,0.08), transparent);
  bottom: 0; left: -80px;
  animation: floatShape 10s ease-in-out infinite reverse;
}
.shape-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(59,130,246,0.12), transparent);
  top: 40%; left: 40%;
  animation: floatShape 12s ease-in-out infinite;
}
@keyframes floatShape {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -20px) scale(1.05); }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 80px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  color: var(--white);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
  width: fit-content;
}

.hero-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--night-dark);
  margin-bottom: 24px;
}
.hero-title-accent {
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 480px;
}

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



/* Hero Visual */
.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  position: relative;
}

.hero-logo-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-glow {
  position: absolute;
  width: 340px; height: 340px;
  background: radial-gradient(circle, rgba(26,86,219,0.15), rgba(229,62,62,0.08), transparent);
  border-radius: 50%;
  filter: blur(40px);
  z-index: 0;
  animation: pulseGlow 3s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.1); opacity: 1; }
}

/* All Day & Night Brand Logo — Hero */
.brand-logo-hero {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px 36px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(26,86,219,0.08);
  animation: floatCard 4s ease-in-out infinite;
}
@keyframes floatCard {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.adn-all {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.8rem;
  font-weight: 900;
  color: #111;
  line-height: 1;
}

.adn-circle {
  width: 100px; height: 100px;
  border-radius: 50%;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: conic-gradient(from 0deg, #e53e3e 0deg 180deg, #1a56db 180deg 360deg);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  animation: spinGlow 8s linear infinite;
}
.adn-circle::before {
  content: '';
  position: absolute;
  inset: 4px;
  background: white;
  border-radius: 50%;
}
@keyframes spinGlow {
  0% { box-shadow: 0 0 20px rgba(229,62,62,0.4), 0 0 40px rgba(26,86,219,0.2); }
  50% { box-shadow: 0 0 20px rgba(26,86,219,0.4), 0 0 40px rgba(229,62,62,0.2); }
  100% { box-shadow: 0 0 20px rgba(229,62,62,0.4), 0 0 40px rgba(26,86,219,0.2); }
}

.adn-day {
  position: relative;
  z-index: 1;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
  font-weight: 900;
  color: #e53e3e;
  line-height: 1;
  text-shadow: none;
}
.adn-night {
  position: relative;
  z-index: 1;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
  font-weight: 900;
  color: #1a56db;
  line-height: 1;
}

/* Floating Pills */
.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  animation: floatPill 3s ease-in-out infinite;
}
.pill i { font-size: 0.8rem; }
.pill-1 {
  background: rgba(229,62,62,0.1);
  color: #c53030;
  border: 1px solid rgba(229,62,62,0.2);
  animation-delay: 0s;
}
.pill-2 {
  background: rgba(26,86,219,0.1);
  color: var(--blue-dark);
  border: 1px solid rgba(26,86,219,0.2);
  animation-delay: 0.5s;
}
.pill-3 {
  background: rgba(16,185,129,0.1);
  color: #065f46;
  border: 1px solid rgba(16,185,129,0.2);
  animation-delay: 1s;
}
@keyframes floatPill {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--gray-400);
  font-weight: 500;
  animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ======================================================
   ABOUT
   ====================================================== */
#about {
  background: var(--white);
}

.about-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.about-card {
  padding: 40px 32px;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-primary), var(--blue-light));
  opacity: 0;
  transition: var(--transition);
}
.about-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(26,86,219,0.15);
}
.about-card:hover::before { opacity: 1; }

.about-card-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
  color: var(--white);
}

.about-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--night-dark);
  margin-bottom: 12px;
}
.about-card p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.75;
}

/* ======================================================
   BRAND / PRODUCT
   ====================================================== */
#brand {
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.brand-showcase {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 56px;
  align-items: start;
}

.brand-logo-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

/* Large ADN Logo for brand section */
.adn-logo-large {
  display: flex;
  align-items: center;
  gap: 14px;
}
.adn-all-lg {
  font-family: 'Montserrat', sans-serif;
  font-size: 3.2rem;
  font-weight: 900;
  color: #111;
  line-height: 1;
}
.adn-circle-lg {
  width: 120px; height: 120px;
  border-radius: 50%;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: conic-gradient(from 0deg, #e53e3e 0deg 180deg, #1a56db 180deg 360deg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
}
.adn-circle-lg::before {
  content: '';
  position: absolute;
  inset: 5px;
  background: white;
  border-radius: 50%;
}
.adn-day-lg {
  position: relative; z-index: 1;
  font-family: 'Montserrat', sans-serif;
  font-size: 1.1rem; font-weight: 900; color: #e53e3e; line-height: 1;
}
.adn-night-lg {
  position: relative; z-index: 1;
  font-family: 'Montserrat', sans-serif;
  font-size: 1.1rem; font-weight: 900; color: #1a56db; line-height: 1;
}

.brand-tagline {
  font-size: 0.9rem;
  color: var(--gray-600);
  font-style: italic;
  line-height: 1.6;
  max-width: 200px;
}

/* Formula Cards */
.brand-formula {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
}

.formula-card {
  display: flex;
  gap: 20px;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.formula-card:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

.day-card {
  background: linear-gradient(135deg, #fff5f5, #ffffff);
  border-color: rgba(229,62,62,0.15);
}
.night-card {
  background: linear-gradient(135deg, #eff6ff, #ffffff);
  border-color: rgba(26,86,219,0.15);
}

.formula-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.day-card .formula-icon { background: rgba(229,62,62,0.1); color: #e53e3e; }
.night-card .formula-icon { background: rgba(26,86,219,0.1); color: var(--blue-primary); }

.formula-content h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.day-card .formula-content h4 { color: #c53030; }
.night-card .formula-content h4 { color: var(--blue-dark); }

.formula-content p {
  font-size: 0.87rem;
  color: var(--gray-600);
  margin-bottom: 12px;
  line-height: 1.7;
}
.formula-content ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.formula-content ul li {
  font-size: 0.82rem;
  color: var(--gray-600);
  padding-left: 16px;
  position: relative;
}
.formula-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  font-weight: 700;
}
.day-card ul li::before { color: #e53e3e; }
.night-card ul li::before { color: var(--blue-primary); }



/* ======================================================
   WHY SEBIT
   ====================================================== */
#why {
  position: relative;
  background: linear-gradient(135deg, var(--night-dark) 0%, var(--night-mid) 100%);
  overflow: hidden;
}
.why-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(26,86,219,0.15), transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(229,62,62,0.08), transparent 60%);
  pointer-events: none;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.why-card {
  padding: 36px 28px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.why-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,86,219,0.08), transparent);
  opacity: 0;
  transition: var(--transition);
}
.why-card:hover {
  transform: translateY(-6px);
  border-color: rgba(26,86,219,0.3);
  background: rgba(255,255,255,0.08);
}
.why-card:hover::after { opacity: 1; }

.why-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 3rem;
  font-weight: 900;
  color: rgba(26,86,219,0.2);
  line-height: 1;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.why-icon {
  font-size: 1.6rem;
  color: var(--blue-light);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.why-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.why-card p {
  font-size: 0.87rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

/* ======================================================
   PERFORMANCE
   ====================================================== */
#performance {
  background: var(--white);
}

.perf-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 80px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.perf-stat-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}
.perf-stat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(26,86,219,0.2);
  background: var(--blue-xlight);
}
.perf-icon {
  font-size: 1.8rem;
  color: var(--blue-primary);
  margin-bottom: 16px;
}
.perf-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--night-dark);
  line-height: 1;
  margin-bottom: 8px;
}
.perf-num span {
  font-size: 1.2rem;
  color: var(--blue-primary);
}
.perf-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Timeline */
.milestones-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--night-dark);
  text-align: center;
  margin-bottom: 48px;
}

.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--blue-primary), var(--blue-light), var(--gray-200));
}

.timeline-item {
  display: flex;
  gap: 32px;
  padding-bottom: 40px;
  position: relative;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--gray-200);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: var(--transition);
}
.timeline-dot.active {
  border-color: var(--blue-primary);
  background: var(--blue-primary);
  box-shadow: 0 0 0 6px rgba(26,86,219,0.12);
}
.timeline-item:hover .timeline-dot {
  border-color: var(--blue-primary);
  transform: scale(1.1);
}

.timeline-content {
  flex: 1;
  padding-top: 6px;
}
.timeline-year {
  display: inline-block;
  padding: 3px 12px;
  background: var(--blue-xlight);
  color: var(--blue-primary);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.timeline-content h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--night-dark);
  margin-bottom: 6px;
}
.timeline-content p {
  font-size: 0.88rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* ======================================================
   FOUNDER
   ====================================================== */
#founder {
  background: var(--gray-50);
}

.founder-wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: start;
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 56px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-100);
}

.founder-avatar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.avatar-circle {
  width: 140px; height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-primary), var(--blue-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--white);
  box-shadow: var(--shadow-blue);
}

/* Founder Photo */
.founder-photo-wrap {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--white);
  box-shadow: var(--shadow-blue);
  flex-shrink: 0;
}
.founder-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.founder-name-card {
  text-align: center;
}
.founder-name {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--night-dark);
  letter-spacing: -0.3px;
}
.founder-role {
  font-size: 0.85rem;
  color: var(--gray-600);
  font-weight: 500;
  margin-top: 4px;
}
.founder-company {
  font-size: 0.85rem;
  color: var(--blue-primary);
  font-weight: 600;
  margin-top: 4px;
}

.founder-quote {
  position: relative;
  margin-bottom: 32px;
}
.quote-icon {
  font-size: 2rem;
  color: var(--blue-primary);
  opacity: 0.3;
  margin-bottom: 12px;
  display: block;
}
.founder-quote p {
  font-size: 1.05rem;
  color: var(--gray-600);
  line-height: 1.85;
  font-style: italic;
  border-left: 3px solid var(--blue-primary);
  padding-left: 20px;
}

.founder-credentials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.cred-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--gray-600);
  font-weight: 500;
}
.cred-item i { color: var(--blue-primary); font-size: 0.9rem; flex-shrink: 0; }

/* ======================================================
   CONTACT
   ====================================================== */
#contact {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1a3c8f 100%);
  overflow: hidden;
}
.contact-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 80%, rgba(26,86,219,0.2), transparent 60%),
    radial-gradient(ellipse at 90% 20%, rgba(59,130,246,0.1), transparent 60%);
  pointer-events: none;
}

/* ── Contact Info Grid ── */
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 860px;
  margin: 0 auto 40px;
  position: relative;
  z-index: 1;
}

.contact-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  backdrop-filter: blur(16px);
  transition: var(--transition);
}
.contact-card:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.32);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.28);
}

.contact-card-icon {
  width: 46px; height: 46px;
  border-radius: var(--radius-md);
  background: rgba(59,130,246,0.25);
  border: 1px solid rgba(59,130,246,0.4);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.05rem;
  color: #93c5fd;
  flex-shrink: 0;
}

.contact-card-body h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.55);
  margin-bottom: 6px;
}
.contact-card-body p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.95);
  font-weight: 500;
  line-height: 1.6;
}
.contact-card-body a {
  color: #93c5fd;
  text-decoration: none;
  transition: var(--transition-fast);
}
.contact-card-body a:hover {
  color: var(--white);
  text-decoration: underline;
}

/* Badges */
.contact-badges-wrap {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 1;
  margin-top: 8px;
}
.badge {
  padding: 8px 18px;
  background: rgba(59,130,246,0.18);
  border: 1px solid rgba(93,168,255,0.4);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #93c5fd;
  letter-spacing: 0.04em;
  transition: var(--transition-fast);
}
.badge:hover {
  background: rgba(59,130,246,0.35);
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}

/* ======================================================
   FOOTER
   ====================================================== */
#footer {
  background: var(--night-dark);
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.6);
  margin-top: 16px;
  line-height: 1.7;
}
.footer-sub {
  font-size: 0.82rem !important;
  color: rgba(255,255,255,0.35) !important;
  margin-top: 6px !important;
}

.footer-links h4,
.footer-contact h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 20px;
}

.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition-fast);
}
.footer-links ul li a:hover { color: var(--white); padding-left: 4px; }

.footer-contact p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}
.footer-contact a { color: var(--blue-light); }
.footer-contact a:hover { color: var(--white); }

.footer-markets {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}
.footer-markets span {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}
.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.3);
}
.footer-lang {
  display: flex;
  gap: 8px;
}
.lang-option-footer {
  padding: 5px 12px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 100px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  background: transparent;
  transition: var(--transition-fast);
}
.lang-option-footer:hover,
.lang-option-footer.active {
  border-color: var(--blue-light);
  color: var(--blue-light);
}

/* ======================================================
   SCROLL REVEAL ANIMATIONS
   ====================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered children */
.stagger > * { transition-delay: 0s; }
.stagger > *:nth-child(1) { transition-delay: 0.05s; }
.stagger > *:nth-child(2) { transition-delay: 0.15s; }
.stagger > *:nth-child(3) { transition-delay: 0.25s; }
.stagger > *:nth-child(4) { transition-delay: 0.35s; }
.stagger > *:nth-child(5) { transition-delay: 0.45s; }
.stagger > *:nth-child(6) { transition-delay: 0.55s; }

/* ======================================================
   RESPONSIVE — TABLET (≤ 968px)
   ====================================================== */
@media (max-width: 968px) {
  section { padding: 72px 0; }

  .nav-links { display: none; }
  .hamburger { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 20px;
    padding-bottom: 60px;
    gap: 40px;
  }
  .hero-title { font-size: clamp(2rem, 6vw, 3rem); }
  .hero-subtitle { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }

  .about-cards { grid-template-columns: 1fr; gap: 20px; }

  .brand-showcase { grid-template-columns: 1fr; gap: 36px; }
  .brand-logo-card { padding: 36px 24px; }

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

  .perf-stats { grid-template-columns: repeat(3, 1fr); }

  .founder-wrap {
    grid-template-columns: 1fr;
    padding: 36px;
    gap: 36px;
  }
  .founder-avatar { flex-direction: row; text-align: left; }

  .contact-info-grid { grid-template-columns: 1fr; gap: 16px; }

  .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
}

/* ======================================================
   RESPONSIVE — MOBILE (≤ 600px)
   ====================================================== */
@media (max-width: 600px) {
  section { padding: 56px 0; }
  .container { padding: 0 16px; }

  .hero-inner { padding-top: 10px; padding-bottom: 48px; gap: 28px; }
  .hero-title { font-size: 2.1rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { padding: 13px 28px; font-size: 0.9rem; }

  .brand-logo-hero { flex-direction: column; padding: 24px; }
  .adn-all { font-size: 2rem; }
  .adn-circle { width: 80px; height: 80px; }

  .why-grid { grid-template-columns: 1fr; }

  .perf-stats { grid-template-columns: 1fr; gap: 16px; max-width: 360px; }
  .perf-stat-card { padding: 28px 16px; }

  .founder-wrap { padding: 28px 20px; }
  .founder-avatar { flex-direction: column; align-items: center; text-align: center; }
  .founder-credentials { grid-template-columns: 1fr; }

  .contact-badges-wrap { gap: 8px; }

  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

  .section-title { font-size: 1.7rem; }
  .section-desc { font-size: 0.95rem; }

  .hero-pills { flex-direction: column; align-items: center; }
  .brand-formula { gap: 16px; }
  .formula-card { flex-direction: column; }
  .timeline::before { left: 18px; }
}