/* ============================================================
   INSAT AI AUTOMATION — Global Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

/* ── Variables ── */
:root {
  --bg-0:        #09090B;
  --bg-1:        #0D0D14;
  --bg-2:        #111119;
  --bg-3:        #16161F;
  --surface:     rgba(255,255,255,0.03);
  --surface-h:   rgba(255,255,255,0.06);

  --indigo:      #6366F1;
  --indigo-d:    #4F51D9;
  --violet:      #8B5CF6;
  --cyan:        #22D3EE;
  --pink:        #EC4899;

  --grad:        linear-gradient(135deg, #6366F1 0%, #8B5CF6 60%, #22D3EE 100%);
  --grad-text:   linear-gradient(135deg, #A5B4FC 0%, #C4B5FD 50%, #67E8F9 100%);
  --grad-border: linear-gradient(135deg, rgba(99,102,241,0.6), rgba(139,92,246,0.4), rgba(34,211,238,0.4));

  --text-1:      #F1F5F9;
  --text-2:      #94A3B8;
  --text-3:      #475569;

  --border:      rgba(255,255,255,0.07);
  --border-h:    rgba(99,102,241,0.5);

  --glow:        0 0 60px rgba(99,102,241,0.25);
  --glow-s:      0 0 30px rgba(99,102,241,0.15);

  --radius:      14px;
  --radius-s:    8px;
  --radius-l:    20px;

  --font-h:      'Space Grotesk', -apple-system, sans-serif;
  --font-b:      'Inter', -apple-system, sans-serif;

  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Reset ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: var(--font-b);
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
::selection { background: rgba(99,102,241,0.4); color: #fff; }

/* ── Noise overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Typography ── */
h1, h2, h3, h4 { font-family: var(--font-h); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.label {
  display: inline-block;
  font-family: var(--font-b);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--indigo);
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.25);
  padding: 0.375rem 0.875rem;
  border-radius: 50px;
}
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}
.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-top: 1rem;
}
.section-header p {
  font-size: 1.125rem;
  color: var(--text-2);
  max-width: 600px;
  margin: 1rem auto 0;
  line-height: 1.7;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-s);
  font-family: var(--font-b);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all 0.3s var(--ease);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--indigo);
  color: #fff;
  box-shadow: 0 0 0 0 rgba(99,102,241,0);
}
.btn-primary:hover {
  background: var(--indigo-d);
  transform: translateY(-2px);
  box-shadow: var(--glow);
}
.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--indigo);
  border: 1px solid rgba(99,102,241,0.4);
}
.btn-outline:hover {
  background: rgba(99,102,241,0.1);
  border-color: var(--indigo);
}
.btn-white {
  background: #fff;
  color: #09090B;
  font-weight: 700;
}
.btn-white:hover {
  background: #e8e8f0;
  transform: translateY(-2px);
}
.btn-lg { padding: 1.125rem 2.25rem; font-size: 1rem; }

/* ══════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════ */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  transition: all 0.4s var(--ease);
}
#nav.scrolled {
  background: rgba(9,9,11,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.brand {
  font-family: var(--font-h);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand span { color: var(--indigo); }
.brand small {
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--text-3);
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-menu {
  display: flex;
  gap: 0.25rem;
  margin-left: auto;
}
.nav-menu a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-s);
  transition: all 0.2s;
}
.nav-menu a:hover {
  color: var(--text-1);
  background: var(--surface-h);
}
.nav-cta {
  margin-left: 0.5rem;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  margin-left: auto;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.hamburger span:nth-child(3) { width: 14px; }

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-0);
  z-index: 999;
  padding: 6rem 2rem 2rem;
  flex-direction: column;
  gap: 0.5rem;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s var(--ease);
}
.mobile-nav.open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}
.mobile-nav a {
  font-size: 1.5rem;
  font-family: var(--font-h);
  font-weight: 700;
  color: var(--text-1);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.mobile-nav a:hover { color: var(--indigo); }
.mobile-nav .btn {
  margin-top: 1.5rem;
  width: 100%;
  justify-content: center;
}

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 10rem 2rem 6rem;
  position: relative;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% -10%, rgba(99,102,241,0.18) 0%, transparent 65%),
    radial-gradient(ellipse 40% 40% at 90% 30%, rgba(139,92,246,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 10% 70%, rgba(34,211,238,0.07) 0%, transparent 60%);
  animation: glow-shift 10s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes glow-shift {
  0% { opacity: 0.7; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.05); }
}
.hero-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 0%, transparent 80%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 0%, transparent 80%);
  pointer-events: none;
}
.hero-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-2);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  margin-bottom: 2rem;
  letter-spacing: 0.04em;
}
.hero-tag::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--cyan);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
#hero h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.05;
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-2);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.75;
  font-weight: 400;
}
.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 4rem;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}
.h-stat { text-align: center; }
.h-stat-n {
  font-family: var(--font-h);
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.375rem;
}
.h-stat-n span { color: var(--indigo); }
.h-stat-l {
  font-size: 0.8125rem;
  color: var(--text-3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Floating orbs */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: float-orb 12s ease-in-out infinite alternate;
}
.orb-1 {
  width: 400px; height: 400px;
  background: rgba(99,102,241,0.12);
  top: -100px; left: -100px;
}
.orb-2 {
  width: 300px; height: 300px;
  background: rgba(139,92,246,0.1);
  bottom: 0; right: -50px;
  animation-delay: -4s;
}
.orb-3 {
  width: 200px; height: 200px;
  background: rgba(34,211,238,0.08);
  top: 40%; left: 60%;
  animation-delay: -8s;
}
@keyframes float-orb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, 40px) scale(1.1); }
}

/* ══════════════════════════════════════════
   TICKER
══════════════════════════════════════════ */
.ticker-wrap {
  overflow: hidden;
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
}
.ticker-track {
  display: flex;
  gap: 3.5rem;
  animation: ticker-scroll 28s linear infinite;
  width: max-content;
}
.ticker-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
}
.ticker-item .dot {
  width: 4px; height: 4px;
  background: var(--indigo);
  border-radius: 50%;
  flex-shrink: 0;
}
@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ══════════════════════════════════════════
   DEMO CALL (Hero Product Feature)
══════════════════════════════════════════ */
#demo {
  padding: 7rem 0;
  position: relative;
  overflow: hidden;
}
.demo-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(99,102,241,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.demo-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.demo-text .label { margin-bottom: 1.25rem; }
.demo-text h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.25rem;
  line-height: 1.1;
}
.demo-text p {
  font-size: 1.0625rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 2rem;
}
.demo-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.demo-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.875rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  transition: all 0.3s var(--ease);
}
.demo-step:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
  transform: translateX(4px);
}
.demo-step-n {
  font-family: var(--font-h);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--indigo);
  min-width: 28px;
}
.demo-step-text { font-size: 0.9rem; color: var(--text-2); line-height: 1.5; }
.demo-step-text strong { color: var(--text-1); display: block; margin-bottom: 0.125rem; }

.demo-form-wrap {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}
.demo-form-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
}
.pulse-ring {
  position: absolute;
  top: -40px; right: -40px;
  width: 150px; height: 150px;
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
}
.pulse-ring::after {
  content: '';
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(99,102,241,0.15);
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite 0.5s;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 0.2; }
}
.form-title {
  font-family: var(--font-h);
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.form-sub { font-size: 0.875rem; color: var(--text-2); margin-bottom: 1.75rem; line-height: 1.5; }
.form-group { margin-bottom: 1.125rem; }
.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 0.5rem;
  letter-spacing: 0.03em;
}
.form-group input,
.form-group select {
  width: 100%;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  padding: 0.875rem 1rem;
  color: var(--text-1);
  font-family: var(--font-b);
  font-size: 0.9375rem;
  transition: all 0.2s;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.form-group input:focus,
.form-group select:focus {
  border-color: var(--indigo);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.form-group input::placeholder { color: var(--text-3); }
.form-submit {
  width: 100%;
  background: var(--indigo);
  color: #fff;
  padding: 1rem;
  border-radius: var(--radius-s);
  font-family: var(--font-b);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.3s var(--ease);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  letter-spacing: -0.01em;
  position: relative;
  overflow: hidden;
}
.form-submit::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background 0.3s;
}
.form-submit:hover::before { background: rgba(255,255,255,0.06); }
.form-submit:hover { transform: translateY(-2px); box-shadow: var(--glow); }
.form-submit:active { transform: translateY(0); }
.form-note { font-size: 0.75rem; color: var(--text-3); text-align: center; margin-top: 0.75rem; }

.demo-success {
  display: none;
  text-align: center;
  padding: 2rem;
}
.demo-success.show { display: block; }
.success-icon {
  width: 64px; height: 64px;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 1.75rem;
  animation: pop 0.4s var(--ease-spring);
}
@keyframes pop {
  0% { transform: scale(0); }
  100% { transform: scale(1); }
}
.success-title { font-family: var(--font-h); font-size: 1.375rem; font-weight: 700; margin-bottom: 0.5rem; }
.success-sub { font-size: 0.9rem; color: var(--text-2); line-height: 1.6; }

/* ══════════════════════════════════════════
   SERVICES
══════════════════════════════════════════ */
#services {
  padding: 7rem 0;
  position: relative;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.service-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.25rem;
  position: relative;
  overflow: hidden;
  transition: all 0.4s var(--ease);
  cursor: default;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.4s;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(99,102,241,0.25);
  background: var(--bg-3);
  box-shadow: 0 24px 48px rgba(0,0,0,0.3), var(--glow-s);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 48px; height: 48px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: var(--radius-s);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.375rem;
  transition: all 0.3s;
}
.service-card:hover .service-icon {
  background: rgba(99,102,241,0.2);
  border-color: rgba(99,102,241,0.5);
  box-shadow: var(--glow-s);
}
.service-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.service-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
}
.service-tag {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--indigo);
  letter-spacing: 0.04em;
}

/* ══════════════════════════════════════════
   PRODUCTS (Workflows)
══════════════════════════════════════════ */
#products {
  padding: 7rem 0;
  background: var(--bg-1);
  position: relative;
  overflow: hidden;
}
#products::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}
.products-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 0.625rem 1.375rem;
  border-radius: 50px;
  font-family: var(--font-b);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-2);
  background: var(--surface);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.tab-btn:hover { color: var(--text-1); border-color: var(--border-h); }
.tab-btn.active {
  background: var(--indigo);
  color: #fff;
  border-color: var(--indigo);
  box-shadow: 0 0 20px rgba(99,102,241,0.3);
}

.product-panel { display: none; }
.product-panel.active { display: block; animation: fade-in 0.3s var(--ease); }
@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.product-header {
  text-align: center;
  margin-bottom: 3rem;
}
.product-header h3 {
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
}
.product-header p {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}
.product-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan);
  background: rgba(34,211,238,0.1);
  border: 1px solid rgba(34,211,238,0.25);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  margin-bottom: 0.75rem;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.workflow::before {
  content: '';
  position: absolute;
  top: 38px;
  left: calc(10% + 20px);
  right: calc(10% + 20px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--indigo), var(--violet), var(--cyan), transparent);
  opacity: 0.4;
}
.wf-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 1rem;
  position: relative;
  animation: wf-appear 0.5s var(--ease) both;
}
.wf-step:nth-child(1) { animation-delay: 0.0s; }
.wf-step:nth-child(2) { animation-delay: 0.1s; }
.wf-step:nth-child(3) { animation-delay: 0.2s; }
.wf-step:nth-child(4) { animation-delay: 0.3s; }
.wf-step:nth-child(5) { animation-delay: 0.4s; }
@keyframes wf-appear {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.wf-icon {
  width: 56px; height: 56px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  margin-bottom: 1.25rem;
  position: relative;
  z-index: 1;
  transition: all 0.3s var(--ease);
}
.wf-step:hover .wf-icon {
  background: rgba(99,102,241,0.15);
  border-color: var(--indigo);
  box-shadow: 0 0 20px rgba(99,102,241,0.25);
  transform: translateY(-4px);
}
.wf-step h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}
.wf-step p {
  font-size: 0.8rem;
  color: var(--text-3);
  line-height: 1.5;
}
.wf-step-n {
  position: absolute;
  top: -8px; right: -4px;
  width: 20px; height: 20px;
  background: var(--indigo);
  border-radius: 50%;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 2;
}

/* ══════════════════════════════════════════
   CASE STUDIES
══════════════════════════════════════════ */
#work { padding: 7rem 0; }
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}
.case-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  overflow: hidden;
  transition: all 0.4s var(--ease);
  position: relative;
}
.case-card:hover {
  transform: translateY(-8px);
  border-color: rgba(99,102,241,0.25);
  box-shadow: 0 30px 60px rgba(0,0,0,0.35), var(--glow-s);
}
.case-preview {
  height: 220px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.case-preview-ndstars {
  background: linear-gradient(135deg, #1a0a2e 0%, #2d1a4e 40%, #4a2d6e 100%);
}
.case-preview-hr {
  background: linear-gradient(135deg, #0a1628 0%, #0f2548 50%, #1a3a6e 100%);
}
.case-preview-inner {
  text-align: center;
  padding: 2rem;
}
.case-logo-text {
  font-family: var(--font-h);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 0.5rem;
}
.case-preview-ndstars .case-logo-text { color: #e8b4ff; }
.case-preview-hr .case-logo-text { color: #93c5fd; }
.case-preview-ndstars .case-preview-sub { color: rgba(232,180,255,0.6); }
.case-preview-hr .case-preview-sub { color: rgba(147,197,253,0.6); }
.case-preview-sub { font-size: 0.8rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; }
.case-browser-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 36px;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  padding: 0 1rem;
  gap: 0.375rem;
}
.case-browser-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  opacity: 0.6;
}
.case-browser-dot:nth-child(1) { background: #FF5F57; }
.case-browser-dot:nth-child(2) { background: #FEBC2E; }
.case-browser-dot:nth-child(3) { background: #28C840; }
.case-browser-url {
  margin-left: 0.75rem;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.3);
  font-family: var(--font-b);
  background: rgba(255,255,255,0.06);
  padding: 0.2rem 0.75rem;
  border-radius: 50px;
}

.case-body { padding: 2rem; }
.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.case-tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.75rem;
  border-radius: 50px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
}
.case-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.03em;
}
.case-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}
.case-results {
  display: flex;
  gap: 1.5rem;
}
.case-result-item { text-align: center; }
.case-result-n {
  font-family: var(--font-h);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--indigo);
  line-height: 1;
  margin-bottom: 0.25rem;
}
.case-result-l {
  font-size: 0.7rem;
  color: var(--text-3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.case-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--indigo);
  margin-top: 1.5rem;
  transition: gap 0.2s;
}
.case-link:hover { gap: 0.625rem; }

/* ══════════════════════════════════════════
   PROCESS
══════════════════════════════════════════ */
#process {
  padding: 7rem 0;
  background: var(--bg-1);
  position: relative;
}
#process::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  position: relative;
}
.process-connector {
  display: none;
}
.process-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}
.process-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
  transform: scaleX(0);
  transition: transform 0.4s var(--ease);
  transform-origin: left;
}
.process-card:hover {
  transform: translateY(-6px);
  border-color: rgba(99,102,241,0.2);
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
}
.process-card:hover::after { transform: scaleX(1); }
.process-n {
  font-family: var(--font-h);
  font-size: 4rem;
  font-weight: 800;
  color: rgba(99,102,241,0.08);
  line-height: 1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.05em;
}
.process-card h3 {
  font-size: 1.375rem;
  margin-bottom: 0.875rem;
}
.process-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
}
.process-time {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 1.25rem;
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--cyan);
  background: rgba(34,211,238,0.08);
  border: 1px solid rgba(34,211,238,0.2);
  padding: 0.3rem 0.75rem;
  border-radius: 50px;
}

/* ══════════════════════════════════════════
   FINAL CTA
══════════════════════════════════════════ */
#cta {
  padding: 7rem 0;
  position: relative;
  overflow: hidden;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 80% at 50% 50%, rgba(99,102,241,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.cta-border {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  padding: 5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-border::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
}
.cta-glow-dots {
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 400px; height: 300px;
  background: radial-gradient(ellipse, rgba(99,102,241,0.15) 0%, transparent 70%);
  pointer-events: none;
}
#cta h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin-bottom: 1.25rem;
}
#cta p {
  font-size: 1.125rem;
  color: var(--text-2);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.cta-note {
  font-size: 0.8rem;
  color: var(--text-3);
  margin-top: 1.25rem;
}

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand .brand { margin-bottom: 1rem; }
.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-3);
  line-height: 1.7;
  max-width: 260px;
}
.footer-col h5 {
  font-family: var(--font-h);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1.25rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a {
  font-size: 0.875rem;
  color: var(--text-2);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--indigo); }
.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--text-3);
}
.footer-bottom a { color: var(--text-3); transition: color 0.2s; }
.footer-bottom a:hover { color: var(--text-2); }

/* ══════════════════════════════════════════
   SCROLL REVEAL
══════════════════════════════════════════ */
.rv {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.rv.fl { transform: translateX(-28px); }
.rv.fr { transform: translateX(28px); }
.rv.fs { transform: scale(0.95); }
.rv.v {
  opacity: 1;
  transform: none;
}
.rv.d1 { transition-delay: 0.1s; }
.rv.d2 { transition-delay: 0.2s; }
.rv.d3 { transition-delay: 0.3s; }
.rv.d4 { transition-delay: 0.4s; }
.rv.d5 { transition-delay: 0.5s; }

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 1080px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .workflow { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
  .workflow::before { display: none; }
  .wf-step:nth-child(4),
  .wf-step:nth-child(5) { grid-column: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-menu, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .demo-inner { grid-template-columns: 1fr; gap: 3rem; }
  .services-grid { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .workflow { grid-template-columns: 1fr; gap: 1.5rem; }
  .workflow::before { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }

  .hero-stats { gap: 2rem; flex-wrap: wrap; }
  .cta-border { padding: 3rem 1.5rem; }

  .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }

  .products-tabs { gap: 0.375rem; }
  .tab-btn { padding: 0.5rem 1rem; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  #hero { padding: 8rem 1.25rem 4rem; }
  .hero-stats { gap: 1.5rem; }
  .demo-form-wrap { padding: 1.75rem 1.25rem; }
  .case-results { gap: 1rem; }
}