/* =============================================
   CHEMatrix — Style System
   ============================================= */

:root {
  --navy:     #0A1628;
  --navy-mid: #0F1F3D;
  --steel:    #1E3A5F;
  --cyan:     #00C9FF;
  --cyan-dim: #0090b8;
  --white:    #F0F4F8;
  --white-dim:#B8C7D9;
  --slate:    #64748B;
  --border:   rgba(0,201,255,0.12);
  --border-lg:rgba(0,201,255,0.20);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --max-w: 1160px;
  --nav-h: 68px;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--navy);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---- Utilities ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.15;
  color: var(--white);
}

h2 { font-family: var(--font-display); }

.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--cyan);
  color: var(--navy);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
}
.btn-primary:hover { background: #33d4ff; transform: translateY(-1px); }
.btn-primary.full-width { width: 100%; text-align: center; }

.btn-ghost {
  display: inline-block;
  padding: 14px 28px;
  background: transparent;
  color: var(--white-dim);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--border-lg);
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* =============================================
   NAV
   ============================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,22,40,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.nav.scrolled { background: rgba(10,22,40,0.97); }

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

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.logo-mark { color: var(--cyan); font-size: 1.4rem; line-height: 1; }
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--white);
  letter-spacing: -0.02em;
}
.logo-accent { color: var(--cyan); }

.nav-links {
  display: flex; align-items: center; gap: 8px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--white-dim);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 8px 14px;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }
.nav-links .nav-cta {
  background: var(--cyan);
  color: var(--navy);
  font-weight: 600;
  padding: 8px 20px;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}
.nav-links .nav-cta:hover { background: #33d4ff; color: var(--navy); }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-burger span {
  display: block; width: 24px; height: 2px;
  background: var(--white);
  transition: all 0.2s;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  background: rgba(10,22,40,0.98);
}
.nav-mobile a {
  text-decoration: none;
  color: var(--white-dim);
  padding: 12px 0;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile.open { display: flex; }

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

#cfdCanvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  opacity: 0.6;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 24px 100px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(0,201,255,0.08);
  border: 1px solid var(--border-lg);
  padding: 8px 16px;
  margin-bottom: 32px;
}
.tag-dot {
  width: 7px; height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--white);
}
.title-gradient {
  background: linear-gradient(135deg, var(--cyan) 0%, #7DF9FF 50%, #00A8D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  max-width: 560px;
  font-size: 1.1rem;
  color: var(--white-dim);
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-val {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
}
.stat-div {
  width: 1px; height: 40px;
  background: var(--border-lg);
}

.hero-scroll-hint {
  position: absolute;
  right: 40px;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate);
  transform: rotate(90deg);
  transform-origin: center;
  margin-bottom: 10px;
}
.scroll-line {
  width: 1px; height: 60px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* =============================================
   SERVICES
   ============================================= */
.services {
  padding: 100px 0;
  background: var(--navy-mid);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.service-card {
  position: relative;
  background: var(--navy);
  border: 1px solid var(--border);
  padding: 40px 36px;
  transition: border-color 0.3s, transform 0.3s;
  overflow: hidden;
}
.service-card::before {
  content: attr(data-index);
  position: absolute;
  top: 24px; right: 24px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--border-lg);
  letter-spacing: 0.1em;
}
.service-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
}
.service-card.featured {
  background: var(--steel);
  border-color: var(--cyan);
}

.service-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  background: var(--cyan);
  padding: 4px 10px;
  margin-bottom: 24px;
}

.service-icon {
  width: 52px; height: 52px;
  color: var(--cyan);
  margin-bottom: 24px;
}
.service-icon svg { width: 100%; height: 100%; }

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--white);
}

.service-card p {
  font-size: 0.92rem;
  color: var(--white-dim);
  line-height: 1.7;
  margin-bottom: 24px;
}

.service-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.service-tags li {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--cyan-dim);
  border: 1px solid var(--border);
  padding: 4px 10px;
}

.service-link {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  transition: letter-spacing 0.2s;
}
.service-link:hover { letter-spacing: 0.03em; }

/* =============================================
   CAPABILITIES
   ============================================= */
.capabilities {
  padding: 100px 0;
  background: var(--navy);
}

.cap-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
}

.cap-left h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 20px;
}
.cap-desc {
  color: var(--white-dim);
  line-height: 1.75;
  margin-bottom: 36px;
  font-size: 0.95rem;
}

.cap-table {
  border: 1px solid var(--border);
  overflow: hidden;
}
.cap-row {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.cap-row:last-child { border-bottom: none; }
.cap-row:hover:not(.header-row) { background: rgba(0,201,255,0.04); }
.cap-row.header-row {
  background: var(--steel);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}
.cap-domain {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--white);
}
.cap-tools {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--white-dim);
}

/* =============================================
   INDUSTRIES
   ============================================= */
.industries {
  padding: 80px 0;
  background: var(--navy-mid);
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.industry-item {
  background: var(--navy);
  border: 1px solid var(--border);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  transition: background 0.2s, border-color 0.2s;
  cursor: default;
}
.industry-item:hover {
  background: rgba(0,201,255,0.05);
  border-color: var(--border-lg);
}
.ind-icon { font-size: 2rem; line-height: 1; }
.industry-item span {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--white-dim);
}

/* =============================================
   PROCESS
   ============================================= */
.process {
  padding: 100px 0;
  background: var(--navy);
}

.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.process-step {
  flex: 1;
  padding: 36px 32px;
  border: 1px solid var(--border);
  background: var(--navy-mid);
  transition: border-color 0.3s;
}
.process-step:hover { border-color: var(--cyan); }

.step-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin-bottom: 16px;
}
.step-body h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 12px;
}
.step-body p {
  font-size: 0.88rem;
  color: var(--white-dim);
  line-height: 1.65;
}

.process-connector {
  width: 40px;
  height: 2px;
  background: linear-gradient(to right, var(--border-lg), var(--cyan), var(--border-lg));
  align-self: center;
  flex-shrink: 0;
}

/* =============================================
   ABOUT
   ============================================= */
.about {
  padding: 100px 0;
  background: var(--navy-mid);
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-box {
  border: 1px solid var(--border);
  overflow: hidden;
  position: relative;
  z-index: 1;
}
.ab-line {
  display: grid;
  grid-template-columns: 120px 1fr;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  gap: 20px;
}
.ab-line:last-child { border-bottom: none; }
.ab-key {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-dim);
  align-self: center;
}
.ab-val {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--white);
}
.about-mesh {
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--navy-mid));
  margin-top: -1px;
}

.about-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 24px;
}
.about-text p {
  color: var(--white-dim);
  line-height: 1.75;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}
.value {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--white);
}
.val-icon { color: var(--cyan); font-size: 1.1rem; }

/* =============================================
   CONTACT
   ============================================= */
.contact {
  padding: 100px 0;
  background: var(--navy);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: start;
}

.contact-left h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 20px;
}
.contact-left p {
  color: var(--white-dim);
  line-height: 1.75;
  margin-bottom: 40px;
  font-size: 0.95rem;
}

.contact-details { display: flex; flex-direction: column; gap: 0; }
.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.contact-item:last-child { border-bottom: none; }
.ci-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
}
.ci-val {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--white);
}

.contact-form {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-dim);
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--navy);
  border: 1px solid var(--border);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.92rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
  -webkit-appearance: none;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--slate); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--cyan); }
.form-group select option { background: var(--navy); }

.form-note {
  font-size: 0.85rem;
  color: var(--cyan);
  text-align: center;
  min-height: 20px;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--navy-mid);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.footer-brand p {
  color: var(--slate);
  font-size: 0.88rem;
  line-height: 1.65;
  margin-top: 16px;
  max-width: 300px;
}

.footer-links { display: flex; gap: 60px; }
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 4px;
}
.footer-col a {
  text-decoration: none;
  color: var(--slate);
  font-size: 0.88rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  color: var(--slate);
  font-size: 0.8rem;
}
.footer-mono {
  font-family: var(--font-mono);
  font-size: 0.65rem !important;
  letter-spacing: 0.2em;
  color: var(--border-lg) !important;
}

/* =============================================
   SCROLL ANIMATIONS
   ============================================= */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr; }
  .cap-layout { grid-template-columns: 1fr; gap: 48px; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { flex-direction: column; gap: 2px; }
  .process-connector { width: 2px; height: 24px; background: linear-gradient(to bottom, var(--border-lg), var(--cyan), var(--border-lg)); align-self: center; }
  .about-layout { grid-template-columns: 1fr; gap: 48px; }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .hero-title { font-size: clamp(2.5rem, 10vw, 4rem); }
  .hero-stats { gap: 20px; }
  .stat-div { display: none; }
  .hero-scroll-hint { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .footer-links { flex-direction: column; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-form { padding: 28px 20px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}