/* ================================================
   ZAI LABS v2 — High-Tech AI Corporate Website
   Deep black + Orange + Sky Blue · Glass · Glow
   ================================================ */

:root {
  /* Core backgrounds */
  --bg: #02040a;
  --bg-2: #060a12;
  --bg-card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);

  /* Accent system — Orange + Sky Blue + Electric Cyan */
  --orange: #ff6b2c;
  --orange-soft: #ff8f55;
  --orange-deep: #e85a1a;
  --sky: #38bdf8;
  --sky-soft: #7dd3fc;
  --cyan: #22d3ee;
  --grad: linear-gradient(135deg, #ff6b2c 0%, #38bdf8 55%, #22d3ee 100%);
  --grad-soft: linear-gradient(135deg, rgba(255,107,44,0.2), rgba(56,189,248,0.14), rgba(34,211,238,0.08));
  --grad-scroll: linear-gradient(180deg, #ff6b2c 0%, #38bdf8 50%, #22d3ee 100%);

  /* Text */
  --text: #f1f5f9;
  --muted: #94a3b8;
  --dim: #64748b;

  /* Typography */
  --font-d: 'Outfit', system-ui, sans-serif;
  --font-b: 'Inter', system-ui, sans-serif;

  /* Layout */
  --r: 18px;
  --r-sm: 12px;
  --header: 78px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-b);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ========== CUSTOM SIDE SCROLLBAR ========== */
/* Firefox */
html {
  scrollbar-width: thin;
  scrollbar-color: #ff6b2c #0a0e18;
}

/* Chrome, Edge, Safari */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #060a12;
  border-left: 1px solid rgba(255, 255, 255, 0.04);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #ff6b2c 0%, #38bdf8 55%, #22d3ee 100%);
  border-radius: 10px;
  border: 2px solid #060a12;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #ff8f55 0%, #7dd3fc 55%, #67e8f9 100%);
  border: 2px solid #060a12;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:active {
  background: linear-gradient(180deg, #e85a1a 0%, #0ea5e9 100%);
  border: 2px solid #060a12;
  background-clip: padding-box;
}

::-webkit-scrollbar-corner {
  background: #060a12;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button, input, select, textarea {
  font: inherit; color: inherit; border: none; background: none; outline: none;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Utilities */
.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass {
  background: var(--bg-card);
  border: 1px solid var(--border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Noise */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9990;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Loader */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 10000;
  display: grid;
  place-items: center;
  transition: opacity 0.55s ease, visibility 0.55s;
}
.loader.done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-inner { text-align: center; }
.loader-mark {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem;
  display: grid;
  place-items: center;
  background: var(--grad);
  border-radius: 14px;
  font-family: var(--font-d);
  font-weight: 800;
  font-size: 1.4rem;
  color: #fff;
}
.loader-text {
  font-family: var(--font-d);
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 0.95rem;
  margin-bottom: 1.4rem;
}
.loader-bar {
  width: 140px;
  height: 2px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}
.loader-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--grad);
  animation: load 1.35s var(--ease) forwards;
}
@keyframes load { to { width: 100%; } }

/* Header */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header);
  transition: background 0.35s, border-color 0.35s, backdrop-filter 0.35s;
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: rgba(3, 5, 10, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  font-family: var(--font-d);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.logo-text {
  color: var(--text);
}
.logo-accent {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-mark {
  display: none;
}

.nav-desktop {
  display: none;
  gap: 2rem;
}
@media (min-width: 920px) {
  .nav-desktop { display: flex; }
}
.nav-desktop a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--muted);
  position: relative;
  transition: color 0.25s;
}
.nav-desktop a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -5px;
  width: 0; height: 1.5px;
  background: var(--grad);
  transition: width 0.3s var(--ease);
}
.nav-desktop a:hover { color: var(--text); }
.nav-desktop a:hover::after { width: 100%; }

.btn-cta {
  display: none;
  padding: 0.65rem 1.25rem;
  background: var(--orange);
  color: #fff;
  font-family: var(--font-d);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 2px 14px rgba(255, 107, 44, 0.35);
  transition: all 0.3s var(--ease);
}
.btn-cta:hover {
  background: var(--orange-soft);
  transform: translateY(-1px);
}
@media (min-width: 1100px) {
  .btn-cta { display: inline-flex; }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  cursor: pointer;
  z-index: 1002;
}
.nav-toggle span {
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.3s var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (min-width: 920px) {
  .nav-toggle { display: none; }
}

.nav-mobile {
  position: fixed;
  inset: 0;
  background: rgba(3, 5, 10, 0.97);
  backdrop-filter: blur(22px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.6rem;
  opacity: 0;
  visibility: hidden;
  transition: 0.4s var(--ease);
  z-index: 999;
}
.nav-mobile.open {
  opacity: 1;
  visibility: visible;
}
.nav-mobile a {
  font-family: var(--font-d);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--muted);
  transition: color 0.25s;
}
.nav-mobile a:hover { color: var(--orange); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.75rem;
  font-family: var(--font-d);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.35s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 22px rgba(255, 107, 44, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 107, 44, 0.45);
}
.btn-outline {
  border: 1px solid var(--border-strong);
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--sky);
  color: var(--sky-soft);
  background: rgba(56, 189, 248, 0.06);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header) + 3rem) 0 5rem;
  overflow: hidden;
}
#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}
.orb-1 {
  width: 420px; height: 420px;
  background: rgba(255, 107, 44, 0.25);
  top: 10%; left: 15%;
  animation: float1 18s ease-in-out infinite;
}
.orb-2 {
  width: 360px; height: 360px;
  background: rgba(56, 189, 248, 0.2);
  bottom: 15%; right: 10%;
  animation: float2 22s ease-in-out infinite;
}
.orb-3 {
  width: 280px; height: 280px;
  background: rgba(255, 107, 44, 0.12);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: float3 15s ease-in-out infinite;
}
@keyframes float1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(40px, 30px); }
}
@keyframes float2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-30px, -40px); }
}
@keyframes float3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.15); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
}
.hero-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--dim);
  margin-bottom: 1.4rem;
  text-transform: uppercase;
}
.hero-title {
  font-family: var(--font-d);
  font-size: clamp(2.8rem, 8.5vw, 6.2rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.1rem;
}
.hero-title span { display: block; }
.hero-sub {
  font-family: var(--font-d);
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 0.9rem;
}
.hero-desc {
  font-size: 1.02rem;
  color: var(--dim);
  max-width: 540px;
  margin: 0 auto 2.4rem;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  z-index: 2;
}
.scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--orange), transparent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.35; transform: scaleY(0.7); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* Marquee */
.marquee {
  padding: 1.1rem 0;
  border-block: 1px solid var(--border);
  background: var(--bg-2);
  overflow: hidden;
}
.marquee-track {
  display: flex;
  gap: 2.2rem;
  white-space: nowrap;
  animation: marquee 38s linear infinite;
  font-family: var(--font-d);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.03em;
}
.marquee-track i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
  align-self: center;
  flex-shrink: 0;
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* Sections */
.section { padding: 6.5rem 0; position: relative; }

.section-head {
  text-align: center;
  margin-bottom: 3.5rem;
}
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.9rem;
}
.section-head h2 {
  font-family: var(--font-d);
  font-size: clamp(2rem, 4.8vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.9rem;
}
.section-desc {
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto;
  font-size: 1.02rem;
}

/* About */
.about-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 880px) {
  .about-layout { grid-template-columns: 1fr; }
}
.about-copy p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 1.2rem;
  line-height: 1.75;
}
.founder-card {
  padding: 1.8rem;
  border-radius: var(--r);
  transition: border-color 0.35s, transform 0.35s;
}
.founder-card:hover {
  border-color: rgba(255, 107, 44, 0.28);
  transform: translateY(-4px);
}
.founder-top {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin-bottom: 1rem;
}
.founder-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--grad);
  display: grid;
  place-items: center;
  font-family: var(--font-d);
  font-weight: 700;
  font-size: 1.25rem;
  color: #fff;
  flex-shrink: 0;
}
.founder-top h3 {
  font-family: var(--font-d);
  font-size: 1.2rem;
  font-weight: 600;
}
.role {
  font-size: 0.82rem;
  color: var(--sky);
  font-weight: 500;
}
.founder-bio {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.35rem;
}
.service-card {
  position: relative;
  padding: 1.7rem;
  border-radius: var(--r);
  overflow: hidden;
  transition: all 0.4s var(--ease);
}
.service-card:hover {
  border-color: rgba(255, 107, 44, 0.32);
  transform: translateY(-6px);
  box-shadow: 0 18px 48px rgba(0,0,0,0.35);
}
.service-glow {
  position: absolute;
  inset: 0;
  background: var(--grad-soft);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.service-card:hover .service-glow { opacity: 1; }
.service-num {
  font-family: var(--font-d);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.06em;
  margin-bottom: 0.85rem;
  position: relative;
}
.service-card h3 {
  font-family: var(--font-d);
  font-size: 1.12rem;
  font-weight: 600;
  margin-bottom: 0.9rem;
  position: relative;
}
.service-card ul { position: relative; }
.service-card li {
  font-size: 0.88rem;
  color: var(--muted);
  padding: 0.28rem 0 0.28rem 0.95rem;
  position: relative;
}
.service-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--sky);
  opacity: 0.75;
}

/* Why */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.3rem;
}
.why-card {
  padding: 1.8rem 1.4rem;
  border-radius: var(--r);
  text-align: center;
  transition: all 0.35s var(--ease);
}
.why-card:hover {
  border-color: rgba(56, 189, 248, 0.28);
  transform: translateY(-4px);
}
.why-icon {
  font-family: var(--font-d);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.08em;
  margin-bottom: 0.7rem;
}
.why-card h3 {
  font-family: var(--font-d);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.why-card p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
}

/* Process */
.process-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.2rem;
}
@media (max-width: 980px) {
  .process-track {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }
}
.process-step { text-align: center; }
.step-circle {
  width: 54px;
  height: 54px;
  margin: 0 auto 1.1rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--grad);
  font-family: var(--font-d);
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  box-shadow: 0 4px 18px rgba(255, 107, 44, 0.3);
}
.process-step h3 {
  font-family: var(--font-d);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.process-step p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.5;
}

/* Projects */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  justify-content: center;
  margin-bottom: 2.3rem;
}
.filter-btn {
  padding: 0.48rem 1.05rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: 0.28s;
}
.filter-btn:hover,
.filter-btn.active {
  color: var(--text);
  border-color: var(--orange);
  background: rgba(255, 107, 44, 0.1);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.35rem;
}
.project-card {
  border-radius: var(--r);
  overflow: hidden;
  transition: all 0.4s var(--ease);
  cursor: pointer;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 22px 55px rgba(0,0,0,0.4);
}
.project-card.hidden { display: none; }

.project-visual {
  height: 190px;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 1.15rem;
}
.project-visual[data-accent="orange"] {
  background: linear-gradient(145deg, #ff6b2c 0%, #1a0f0a 90%);
}
.project-visual[data-accent="sky"] {
  background: linear-gradient(145deg, #38bdf8 0%, #0a1520 90%);
}
.project-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.88);
}
.project-body {
  padding: 1.3rem 1.4rem 1.5rem;
}
.project-body h3 {
  font-family: var(--font-d);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.project-body p {
  font-size: 0.88rem;
  color: var(--muted);
}

/* AI Section */
.ai-section {
  position: relative;
  overflow: hidden;
  padding: 7.5rem 0;
}
.ai-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 25% 40%, rgba(255,107,44,0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 30%, rgba(56,189,248,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(255,107,44,0.05) 0%, transparent 45%);
  pointer-events: none;
}
.ai-content {
  position: relative;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.ai-content p {
  font-size: 1.12rem;
  color: var(--muted);
  line-height: 1.75;
  margin: 1.4rem auto 2.8rem;
  max-width: 580px;
}
.ai-metrics {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}
.metric strong {
  display: block;
  font-family: var(--font-d);
  font-size: 2.3rem;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}
.metric span {
  font-size: 0.82rem;
  color: var(--dim);
  letter-spacing: 0.03em;
}

/* CTA */
.cta-section { padding: 4.5rem 0; }
.cta-panel {
  text-align: center;
  padding: 3.8rem 2rem;
  border-radius: 22px;
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-soft);
  opacity: 0.55;
}
.cta-panel h2 {
  font-family: var(--font-d);
  font-size: clamp(1.9rem, 4.2vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.9rem;
  position: relative;
}
.cta-panel p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 1.8rem;
  position: relative;
}
.cta-actions {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.3fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 880px) {
  .contact-layout { grid-template-columns: 1fr; }
}
.contact-info h3 {
  font-family: var(--font-d);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.contact-info .tagline {
  color: var(--orange);
  font-weight: 500;
  margin-bottom: 1.8rem;
}
.info-block { margin-bottom: 1.4rem; }
.info-block .label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 0.3rem;
}
.info-block a {
  color: var(--sky);
  font-weight: 500;
  transition: color 0.25s;
}
.info-block a:hover { color: var(--sky-soft); }
.info-block p { color: var(--muted); }

.contact-form {
  padding: 2rem;
  border-radius: var(--r);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}
@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-group { margin-bottom: 1.1rem; }
.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  transition: border-color 0.28s, background 0.28s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--orange);
  background: rgba(255, 107, 44, 0.04);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--dim); }
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  cursor: pointer;
}
.form-group select option { background: #0c1018; }
.form-group.error input,
.form-group.error select,
.form-group.error textarea { border-color: #ef4444; }
.form-btn { width: 100%; margin-top: 0.4rem; }
.form-note {
  text-align: center;
  font-size: 0.78rem;
  color: var(--dim);
  margin-top: 0.9rem;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3.2rem 0 1.8rem;
  background: var(--bg-2);
}
.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.8rem;
  margin-bottom: 2.2rem;
}
.footer-brand p {
  font-size: 0.88rem;
  color: var(--dim);
  margin-top: 0.35rem;
}
.footer-nav {
  display: flex;
  gap: 1.6rem;
  flex-wrap: wrap;
}
.footer-nav a {
  font-size: 0.88rem;
  color: var(--muted);
  transition: color 0.25s;
}
.footer-nav a:hover { color: var(--orange); }
.footer-social {
  display: flex;
  gap: 0.7rem;
}
.footer-social a {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: 0.28s;
}
.footer-social a:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 107, 44, 0.08);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--dim);
}

/* Responsive */
@media (max-width: 600px) {
  .section { padding: 4.8rem 0; }
  .hero-title { font-size: 2.6rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 270px; }
  .cta-panel { padding: 2.8rem 1.4rem; }
  .contact-form { padding: 1.4rem; }
  .services-grid,
  .projects-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ========== MULTIPAGE ADDITIONS ========== */
.nav-desktop a.active,
.nav-mobile a.active {
  color: var(--text);
}
.nav-desktop a.active::after {
  width: 100%;
}

.page-hero {
  position: relative;
  padding: calc(var(--header) + 5rem) 0 4rem;
  overflow: hidden;
  text-align: center;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(255,107,44,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 30%, rgba(56,189,248,0.08) 0%, transparent 50%);
  pointer-events: none;
}
.page-hero .tag {
  margin-bottom: 1rem;
}
.page-hero h1 {
  font-family: var(--font-d);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1rem;
}
.page-hero p {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Active CTA on pages */
.header .btn-cta {
  display: none;
}
@media (min-width: 1100px) {
  .header .btn-cta { display: inline-flex; }
}