/* =========================================
   SeekWoo - Biotech Solutions
   Deep forest black + lime green biotech theme
   ========================================= */

:root {
  --bg-deep: #080c0a;
  --bg-primary: #0b100e;
  --bg-secondary: #0f1612;
  --bg-card: #141b17;
  --bg-elevated: #19221d;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #a3e635;
  --accent-deep: #65a30d;
  --accent-lush: #4ade80;
  --accent-dim: rgba(163, 231, 53, 0.08);
  --accent-glow: rgba(163, 231, 53, 0.04);
  --accent-amber: #f59e0b;
  --border-color: #1e2922;
  --border-subtle: rgba(163, 231, 53, 0.08);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --font-sans: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
  --radius: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: #2a3a32; border-radius: 3px; }
* { scrollbar-width: thin; scrollbar-color: #2a3a32 var(--bg-deep); }

/* Background pattern - molecular/biotech feel */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 15% 25%, rgba(163, 231, 53, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 85% 75%, rgba(163, 231, 53, 0.02) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ===== Hex grid pattern ===== */
.hex-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(163, 231, 53, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(163, 231, 53, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(11, 16, 14, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(30, 41, 34, 0.6);
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(11, 16, 14, 0.97);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 1px;
  position: relative;
}

.nav-logo span {
  color: var(--accent);
}

.nav-logo .logo-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  margin-left: 2px;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--accent); }
  50% { opacity: 0.4; box-shadow: 0 0 12px var(--accent); }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  background: var(--accent-dim);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Container ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 60px 0;
}

.hero-text {
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-dim);
  border: 1px solid rgba(163, 231, 53, 0.15);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.hero-title .accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.8;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-family: var(--font-sans);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-lush));
  color: #0b100e;
  box-shadow: 0 4px 20px rgba(163, 231, 53, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(163, 231, 53, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
}

.btn-secondary:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-molecule {
  width: 100%;
  max-width: 420px;
  position: relative;
}

.molecule-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.molecule-atom {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.4s ease;
  position: relative;
}

.molecule-atom:hover {
  border-color: var(--accent);
  transform: scale(1.08);
  box-shadow: 0 0 20px rgba(163, 231, 53, 0.15);
}

.molecule-atom.large { grid-column: span 2; border-radius: 16px; aspect-ratio: auto; padding: 16px; font-size: 1rem; }
.molecule-atom.large h4 { font-size: 0.9rem; color: var(--accent); margin-bottom: 4px; }
.molecule-atom.large p { font-size: 0.75rem; color: var(--text-muted); }
.molecule-atom.large .icon { font-size: 1.5rem; margin-bottom: 4px; }

.atom-accent { border-color: rgba(163, 231, 53, 0.2); }
.atom-amber { border-color: rgba(245, 158, 11, 0.15); }
.atom-muted { border-color: var(--border-color); }

/* Connecting lines between atoms */
.molecule-atom::after {
  display: none;
}

/* ===== Section ===== */
.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.section-title .accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(163, 231, 53, 0.04), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.service-card:hover::before {
  opacity: 1;
}

.service-card:hover {
  border-color: rgba(163, 231, 53, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-dim);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

/* ===== Stats ===== */
.stats-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 60px 0;
}

.stat-item {
  text-align: center;
  padding: 24px;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== About ===== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.about-text h2 .accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1rem;
  line-height: 1.8;
}

.about-features {
  list-style: none;
  margin-top: 24px;
}

.about-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.about-features li::before {
  content: '\25B6';
  color: var(--accent);
  font-size: 0.7rem;
}

.about-visual {
  display: flex;
  justify-content: center;
}

.about-dna {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-md);
}

.dna-strand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dna-node {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-color);
}

.dna-node:last-child {
  border-bottom: none;
}

.dna-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
  border: 2px solid rgba(163, 231, 53, 0.3);
  color: var(--accent);
  background: rgba(163, 231, 53, 0.06);
}

.dna-node h4 {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.dna-node p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.contact-info h3 {
  font-size: 1.4rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  background: var(--accent-dim);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item-text h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.contact-item-text p,
.contact-item-text a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
}

.contact-item-text a:hover {
  color: var(--accent);
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  transition: border-color 0.3s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.footer-brand h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.footer-brand h3 span {
  color: var(--accent);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 320px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: color 0.3s ease;
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ===== Content Pages ===== */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
}

.page-header h1 {
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--text-primary);
}

.page-header h1 .accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  color: var(--text-secondary);
  margin-top: 12px;
  font-size: 1rem;
}

.legal-content {
  padding: 0 0 80px;
}

.legal-content .container {
  max-width: 800px;
}

.legal-content h2 {
  font-size: 1.4rem;
  margin: 40px 0 16px;
  color: var(--text-primary);
}

.legal-content h3 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
  color: var(--text-primary);
}

.legal-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.legal-content ul {
  margin: 12px 0 20px 24px;
}

.legal-content ul li {
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.7;
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--nav-height));
    background: rgba(11, 16, 14, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1.2rem;
    padding: 16px 24px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .page-header h1 {
    font-size: 1.8rem;
  }

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

@media (min-width: 769px) and (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-title {
    font-size: 2.6rem;
  }
}