:root {
  --violet: #8b5cf6;
  --violet-soft: #a78bfa;
  --bg: #050505;
  --surface: #0e0e10;
  --border: rgba(255,255,255,0.08);
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse at top, rgba(139,92,246,0.18), transparent 55%),
    radial-gradient(ellipse at bottom right, rgba(168,85,247,0.08), transparent 60%);
  background-attachment: fixed;
}

/* Mobile nav */
header nav.mobile-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(5,5,5,0.96);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  gap: 1.25rem;
}

/* Typography */
.display, .display-sm, h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: -0.02em;
}
.display {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 600;
  line-height: 1.05;
}
.display-sm {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 600;
  line-height: 1.1;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--violet-soft);
  font-weight: 600;
}

/* Hero aurora */
.aurora {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 600px;
  background:
    radial-gradient(circle at 30% 50%, rgba(139,92,246,0.35), transparent 50%),
    radial-gradient(circle at 70% 30%, rgba(236,72,153,0.18), transparent 55%);
  filter: blur(60px);
  z-index: -1;
  pointer-events: none;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(139,92,246,0.35);
  background: rgba(139,92,246,0.08);
  color: var(--violet-soft);
  font-size: 0.85rem;
  backdrop-filter: blur(10px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #fff, #e5e5e5);
  color: #000;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 40px rgba(255,255,255,0.18); }
.btn-ghost {
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
}
.btn-ghost:hover { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.4); }

/* iMessage-style bubbles */
.bubble {
  padding: 1rem 1.4rem;
  border-radius: 1.5rem;
  font-size: 1.05rem;
  max-width: 320px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.bubble-dark { background: #1c1c1e; color: #fff; border-bottom-left-radius: 0.4rem; }
.bubble-light { background: linear-gradient(135deg, #8b5cf6, #6366f1); color: #fff; border-bottom-right-radius: 0.4rem; }

/* Marquee */
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track {
  display: flex;
  gap: 4rem;
  animation: scroll 30s linear infinite;
  white-space: nowrap;
  width: max-content;
}
.marquee-track span {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: rgba(255,255,255,0.4);
}
@keyframes scroll { to { transform: translateX(-50%); } }

/* Chips */
.chip {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  transition: all 0.2s;
}
.chip:hover { color: #fff; border-color: rgba(255,255,255,0.3); }
.chip-active { background: #fff; color: #000; border-color: #fff; }

/* Case cards */
.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  overflow: hidden;
  transition: transform 0.4s ease, border-color 0.3s;
}
.case-card:hover { transform: translateY(-6px); border-color: rgba(139,92,246,0.4); }
.case-thumb {
  aspect-ratio: 16/11;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  color: rgba(255,255,255,0.95);
}
.tag {
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.7);
  border: 1px solid var(--border);
}

/* Path cards */
.path-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 2rem;
  transition: all 0.3s;
}
.path-card:hover { border-color: rgba(139,92,246,0.4); transform: translateY(-4px); }
.path-card h3 { font-size: 1.75rem; margin-top: 1.5rem; }
.path-sub { color: rgba(255,255,255,0.5); margin-top: 0.5rem; font-size: 0.9rem; }
.path-card > p:last-of-type { color: rgba(255,255,255,0.7); margin-top: 1rem; line-height: 1.6; }
.path-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-top: 2rem; color: var(--violet-soft); font-weight: 500;
}
.path-link:hover { color: #fff; }
.path-icon {
  width: 56px; height: 56px; border-radius: 1rem;
  background: linear-gradient(135deg, rgba(139,92,246,0.3), rgba(99,102,241,0.15));
  border: 1px solid rgba(139,92,246,0.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--violet-soft); font-size: 1.5rem;
}
.path-card-featured {
  background: linear-gradient(180deg, rgba(139,92,246,0.12), var(--surface));
  border-color: rgba(139,92,246,0.35);
}

/* Stats */
.stat { padding: 2rem 0; border-top: 1px solid var(--border); }
.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 600;
  background: linear-gradient(135deg, #fff, #8b5cf6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { color: rgba(255,255,255,0.6); margin-top: 0.5rem; }

/* Service cards */
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 2rem;
  transition: all 0.3s;
}
.service-card:hover { border-color: rgba(139,92,246,0.4); }
.service-num {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--violet-soft);
  font-size: 0.9rem;
  font-weight: 600;
}
.service-card h3 { font-size: 1.5rem; margin-top: 0.5rem; }
.service-card p { color: rgba(255,255,255,0.65); margin-top: 1rem; line-height: 1.6; }
.service-card ul { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 0.5rem; }
.service-card ul li {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  padding-left: 1.25rem;
  position: relative;
}
.service-card ul li::before {
  content: "→";
  position: absolute; left: 0;
  color: var(--violet-soft);
}

/* Steps */
.step {
  padding: 1.75rem;
  border-radius: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
}
.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  color: var(--violet-soft);
  font-weight: 600;
}
.step h4 { font-size: 1.25rem; margin-top: 0.5rem; }
.step p { color: rgba(255,255,255,0.6); margin-top: 0.75rem; line-height: 1.55; font-size: 0.95rem; }

/* FAQ */
.faq { padding: 1.5rem 0; }
.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.15rem;
  font-weight: 500;
  font-family: 'Space Grotesk', sans-serif;
  gap: 2rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { color: var(--violet-soft); transition: transform 0.3s; }
.faq[open] summary i { transform: rotate(45deg); }
.faq p { color: rgba(255,255,255,0.65); margin-top: 1rem; line-height: 1.65; }

/* CTA */
.cta {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
  padding: 5rem 2rem;
  border-radius: 2rem;
  background:
    radial-gradient(circle at 50% 0%, rgba(139,92,246,0.3), transparent 60%),
    var(--surface);
  border: 1px solid rgba(139,92,246,0.3);
}

/* Chat fab */
.chat-fab {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  width: 56px; height: 56px;
  border-radius: 999px;
  background: linear-gradient(135deg, #8b5cf6, #6366f1);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 10px 30px rgba(139,92,246,0.5);
  z-index: 60;
  transition: transform 0.2s;
}
.chat-fab:hover { transform: scale(1.08); }

@media (max-width: 768px) {
  .display { font-size: 2.5rem; }
}

/* Industry cards */
.industry-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1.75rem 1rem;
  text-align: center;
  transition: all 0.3s;
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
}
.industry-card:hover { border-color: rgba(139,92,246,0.4); transform: translateY(-4px); }
.industry-card i { font-size: 1.8rem; color: var(--violet-soft); }
.industry-card span { font-weight: 600; font-size: 0.95rem; font-family: 'Space Grotesk', sans-serif; }

/* AI cards */
.ai-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1.5rem;
  transition: all 0.3s;
}
.ai-card:hover { border-color: rgba(139,92,246,0.4); transform: translateY(-4px); }
.ai-icon {
  width: 48px; height: 48px; border-radius: 0.85rem;
  background: linear-gradient(135deg, rgba(139,92,246,0.25), rgba(99,102,241,0.12));
  border: 1px solid rgba(139,92,246,0.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--violet-soft); font-size: 1.25rem;
  margin-bottom: 1rem;
}
.ai-card h4 { font-size: 1.1rem; font-family: 'Space Grotesk', sans-serif; }
.ai-card p { color: rgba(255,255,255,0.55); font-size: 0.875rem; margin-top: 0.5rem; line-height: 1.5; }

/* Contact form */
.input-field {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.25s;
}
.input-field:focus { border-color: rgba(139,92,246,0.5); }
.input-field::placeholder { color: rgba(255,255,255,0.3); }
select.input-field { color: rgba(255,255,255,0.5); }
select.input-field option { background: #111; color: #fff; }
textarea.input-field { resize: vertical; min-height: 100px; }

.contact-icon {
  width: 44px; height: 44px; border-radius: 0.85rem;
  background: rgba(139,92,246,0.12);
  border: 1px solid rgba(139,92,246,0.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--violet-soft); font-size: 1rem;
  flex-shrink: 0;
}

/* WhatsApp CTA */
.whatsapp-btn {
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.25s;
  width: fit-content;
}
.whatsapp-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(37,211,102,0.35); }