/* ═══════════════════════════════════════════════
   Sequential Analytics — Design System
   Precision dark. Yellow accent. Clean type.
   ═══════════════════════════════════════════════ */

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

/* ── Base ── */
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  background-color: #0A0A0A;
  color: #F5F5F5;
  font-family: 'Outfit', sans-serif;
  overflow-x: clip;
}
img { max-width: 100%; height: auto; }

/* ── Subtle Grid Background ── */
.grid-bg {
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 72px 72px;
}

/* ── Navigation ── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,10,0.9);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link {
  color: #888888;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 0.2s ease;
}
.nav-link:hover, .nav-link.active { color: #F5F5F5; }
.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  color: #888888; padding: 8px;
}

/* Mobile menu */
.mobile-menu {
  display: none;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.mobile-menu.open { display: block; }
.mobile-menu-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #D2FF46;
  color: #0A0A0A;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 14px;
  font-family: 'Outfit', sans-serif;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-primary:hover {
  background: #E4FF73;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(210,255,70,0.2);
}
.btn-primary-sm {
  padding: 9px 20px;
  font-size: 13px;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #F5F5F5;
  font-weight: 500;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 14px;
  font-family: 'Outfit', sans-serif;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.12);
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-outline:hover {
  border-color: rgba(255,255,255,0.24);
  background: rgba(255,255,255,0.04);
}
.btn-outline-sm {
  padding: 9px 20px;
  font-size: 13px;
}

/* ── Cards ── */
.card {
  background: #111111;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  border-color: rgba(210,255,70,0.12);
  transform: translateY(-2px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}
.card-static {
  background: #111111;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.06), transparent);
}

/* ── Section Label ── */
.section-label {
  font-family: 'Outfit', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #D2FF46;
  margin-bottom: 16px;
}

/* ── Stats ── */
.stat-value {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 800;
  font-size: 32px;
  color: #D2FF46;
  line-height: 1;
}
.stat-label {
  color: #888888;
  font-size: 13px;
  font-weight: 400;
  margin-top: 6px;
}

/* ── Tech Badge ── */
.tech-badge {
  display: inline-flex;
  padding: 5px 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 6px;
  font-size: 12px;
  color: #888888;
  font-weight: 400;
}

/* ── Process Steps ── */
.process-step {
  position: relative;
  padding-left: 52px;
}
.step-number {
  position: absolute;
  left: 0; top: 2px;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: 13px;
  color: #D2FF46;
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(210,255,70,0.2);
  border-radius: 8px;
  background: rgba(210,255,70,0.04);
}
.step-connector {
  position: absolute;
  left: 15px;
  top: 38px;
  width: 1px;
  bottom: -8px;
  background: rgba(210,255,70,0.1);
}

/* ── Form Inputs ── */
.form-input {
  background: #111111;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  color: #F5F5F5;
  font-family: 'Outfit', sans-serif;
  outline: none;
  width: 100%;
  transition: border-color 0.2s ease;
}
.form-input:focus {
  border-color: rgba(210,255,70,0.4);
}
.form-input::placeholder { color: #555555; }
textarea.form-input { resize: vertical; min-height: 140px; }

/* ── Case Study Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.badge-shipped {
  background: rgba(210,255,70,0.08);
  border: 1px solid rgba(210,255,70,0.18);
  color: #D2FF46;
}
.badge-dev {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: #888888;
}
.badge-demo {
  background: rgba(236,72,153,0.08);
  border: 1px solid rgba(236,72,153,0.18);
  color: #ec4899;
}

/* ── Link Accent ── */
.link-accent {
  color: #D2FF46;
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease, color 0.2s ease;
}
.link-accent:hover {
  color: #E4FF73;
  gap: 10px;
}
.link-accent svg {
  width: 14px; height: 14px;
  transition: transform 0.2s ease;
}

/* ── Marquee ── */
.marquee-container { overflow: hidden; }
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 35s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.marquee-item {
  padding: 0 28px;
  color: rgba(255,255,255,0.25);
  font-size: 14px;
  font-weight: 400;
  white-space: nowrap;
}
.marquee-dot {
  color: rgba(210,255,70,0.2);
  font-size: 14px;
  padding: 0 4px;
}

/* ── Hero Animations ── */
.hero-fade {
  opacity: 0;
  transform: translateY(14px);
  animation: heroIn 0.7s ease forwards;
}
@keyframes heroIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ── Demo Section Entrance ── */
.demo-fade {
  opacity: 0;
  transform: translateY(20px);
  animation: demoIn 0.8s ease forwards;
}
.demo-slide {
  opacity: 0;
  transform: translateY(40px);
  animation: demoSlide 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes demoIn {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes demoSlide {
  to { opacity: 1; transform: translateY(0); }
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── CTA Section ── */
.cta-section {
  position: relative;
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(210,255,70,0.04) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  margin-top: 40px;
}

/* ── Content Container ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }

  .btn-primary, .btn-outline {
    padding: 11px 24px;
    font-size: 13px;
  }
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  .hero-buttons .btn-primary,
  .hero-buttons .btn-outline {
    width: 100%;
    justify-content: center;
  }

  .stat-value { font-size: 26px; }
}