/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { min-height: 100svh; }
img, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ---------- Design tokens ---------- */
:root {
  --bg: #0a0918;
  --bg-alt: #0e0c26;
  --surface: rgba(255,255,255,0.045);
  --surface-2: rgba(255,255,255,0.075);
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(255,255,255,0.16);

  --text: #f4f2fb;
  --text-dim: #b6b0d6;
  --text-faint: #8983ad;

  --violet-300: #a78bfa;
  --violet-400: #8b5cf6;
  --violet-500: #7c3aed;
  --violet-600: #6d28d9;
  --indigo-700: #3b1f7a;

  --gradient-brand: linear-gradient(135deg, #9d6cf9 0%, #7c3aed 55%, #4c2fa8 100%);
  --gradient-text: linear-gradient(135deg, #c4b5fd, #8b5cf6);

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;

  --container: 1200px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --shadow-glow: 0 8px 40px -8px rgba(124, 58, 237, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Base ---------- */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 4.6vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 3.2vw, 2.75rem); }
h3 { font-size: 1.2rem; }
h4 { font-size: 1rem; }

p { color: var(--text-dim); }

.skip-link {
  position: absolute; left: 1rem; top: -60px;
  background: var(--violet-500); color: #fff;
  padding: 0.7rem 1.2rem; border-radius: var(--radius-sm);
  z-index: 1000; transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 2px solid var(--violet-300);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}
.container-narrow { max-width: 820px; }

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet-300);
  margin-bottom: 0.9rem;
}

.icon { stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

/* ---------- Background canvas / glows ---------- */
.bg-canvas {
  position: fixed; inset: 0; z-index: -1; overflow: hidden;
  background: var(--bg);
}
#swirl-canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.55; }
.bg-glow {
  position: absolute; border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  pointer-events: none;
}
.bg-glow--one { width: 45vw; height: 45vw; top: -12%; right: -10%; background: radial-gradient(circle, #7c3aed, transparent 70%); }
.bg-glow--two { width: 40vw; height: 40vw; bottom: 0%; left: -12%; background: radial-gradient(circle, #4c2fa8, transparent 70%); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600; font-size: 0.95rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 44px -6px rgba(124,58,237,0.6); }
.btn-ghost {
  background: rgba(255,255,255,0.03);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover { background: rgba(255,255,255,0.08); border-color: var(--violet-300); transform: translateY(-2px); }
.btn-sm { padding: 0.6rem 1.25rem; font-size: 0.85rem; }
.btn-lg { padding: 1rem 2.2rem; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.site-header.scrolled {
  background: rgba(10, 9, 24, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 1.1rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand-mark { width: 36px; height: 36px; }
.brand-word { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: #fff; }
.brand-word .accent { color: var(--violet-300); }

.main-nav ul { display: flex; gap: 2rem; }
.main-nav a {
  font-size: 0.92rem; font-weight: 500; color: var(--text-dim);
  transition: color 0.2s var(--ease);
  position: relative;
}
.main-nav a:hover { color: var(--text); }
.main-nav a.active { color: var(--text); }

.header-actions { display: flex; align-items: center; gap: 1rem; }
.nav-toggle {
  display: none; background: none; border: none; color: var(--text);
  width: 40px; height: 40px; align-items: center; justify-content: center;
  border-radius: 8px;
}
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

/* ---------- Hero ---------- */
.hero { padding-top: clamp(3rem, 7vw, 6rem); padding-bottom: clamp(3rem, 7vw, 5rem); }
.hero-inner {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-lead { font-size: 1.1rem; max-width: 46ch; margin-block: 1.4rem 2rem; }
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.75rem; }
.hero-tagline {
  font-family: var(--font-display); font-weight: 600; letter-spacing: 0.06em;
  color: var(--text-faint); text-transform: uppercase; font-size: 0.85rem;
}

.hero-visual { position: relative; aspect-ratio: 1 / 1; max-width: 460px; margin-inline: auto; }
.visual-ring {
  position: absolute; inset: 8%;
  border-radius: 50%;
  border: 1px dashed var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  animation: spin 60s linear infinite;
}
.visual-ring::before {
  content: ""; position: absolute; inset: -18%;
  border-radius: 50%; border: 1px solid var(--border);
}
.visual-logo { width: 62%; height: 62%; animation: spin-reverse 40s linear infinite; filter: drop-shadow(0 0 40px rgba(139, 92, 246, 0.45)); }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-reverse { to { transform: rotate(-360deg); } }

.float-chip {
  position: absolute;
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(20, 16, 46, 0.75);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.55rem 1rem;
  font-size: 0.78rem; font-weight: 600; color: var(--text);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.6);
  animation: bob 6s ease-in-out infinite;
}
.float-chip .icon { color: var(--violet-300); }
.chip-1 { top: 4%; left: -6%; animation-delay: 0s; }
.chip-2 { top: 18%; right: -10%; animation-delay: 1.2s; }
.chip-3 { bottom: 14%; left: -12%; animation-delay: 2.4s; }
.chip-4 { bottom: 0%; right: -4%; animation-delay: 3.6s; }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ---------- Signal strip ---------- */
.signal-strip { padding-block: 2.5rem; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.signal-caption { text-align: center; color: var(--text-faint); font-size: 0.85rem; margin-bottom: 1.4rem; letter-spacing: 0.02em; }
.signal-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem 1rem; }
.signal-list li {
  font-family: var(--font-display); font-size: 0.85rem; font-weight: 500;
  color: var(--text-dim);
  border: 1px solid var(--border); border-radius: 999px;
  padding: 0.5rem 1.1rem;
}

/* ---------- Sections ---------- */
.section { padding-block: clamp(4rem, 8vw, 7rem); }
.section-alt { background: linear-gradient(180deg, transparent, rgba(124,58,237,0.05), transparent); }
.section-head { max-width: 640px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-lead { font-size: 1.05rem; }

.grid { display: grid; gap: 1.5rem; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.9rem;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.card h3 { margin-bottom: 0.65rem; }
.card p { font-size: 0.94rem; }
.card-sm { padding: 1.6rem; }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-brand);
  color: #fff;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-glow);
}

/* ---------- Process ---------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; position: relative; }
.process::before {
  content: ""; position: absolute; top: 44px; left: 8%; right: 8%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}
.process-step { position: relative; text-align: left; }
.process-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--bg-alt); border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  color: var(--violet-300); margin-bottom: 1.1rem;
  position: relative; z-index: 1;
}
.process-index { display: block; font-family: var(--font-display); color: var(--text-faint); font-size: 0.8rem; font-weight: 600; margin-bottom: 0.35rem; }
.process-step h3 { margin-bottom: 0.5rem; }
.process-step p { font-size: 0.92rem; }

/* ---------- Pillars ---------- */
.pillars { margin-bottom: clamp(3rem, 6vw, 5rem); }
.pillar {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 2.2rem; background: linear-gradient(160deg, rgba(124,58,237,0.08), transparent 60%);
}
.pillar-number {
  display: inline-block; font-family: var(--font-display); font-weight: 700;
  font-size: 0.85rem; color: var(--violet-300);
  border: 1px solid var(--border-strong); border-radius: 999px;
  padding: 0.3rem 0.8rem; margin-bottom: 1.2rem;
}
.pillar h3 { margin-bottom: 0.7rem; font-size: 1.4rem; }
.pillar p { font-size: 0.96rem; }

/* ---------- Feature list ---------- */
.features { }
.feature { display: flex; gap: 1rem; align-items: flex-start; padding: 0.5rem; }
.feature .icon { color: var(--violet-300); margin-top: 0.2rem; }
.feature h4 { margin-bottom: 0.35rem; }
.feature p { font-size: 0.9rem; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
  border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 1.1rem 1.4rem; background: var(--surface);
}
.faq-item summary {
  cursor: pointer; list-style: none; font-family: var(--font-display);
  font-weight: 600; font-size: 1rem; color: var(--text);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 1.4rem; color: var(--violet-300); flex-shrink: 0;
  transition: transform 0.25s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { margin-top: 0.9rem; font-size: 0.94rem; }

/* ---------- CTA banner ---------- */
.cta-banner {
  margin: clamp(3rem, 6vw, 5rem) auto; max-width: calc(var(--container) - 1rem);
  padding: clamp(3rem, 6vw, 4.5rem) clamp(1.5rem, 5vw, 3rem);
  border-radius: var(--radius-lg);
  background: var(--gradient-brand);
  text-align: center;
  position: relative; overflow: hidden;
}
.cta-inner { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.cta-banner h2 { color: #fff; }
.cta-banner p { color: rgba(255,255,255,0.85); max-width: 46ch; margin-bottom: 0.5rem; }
.cta-banner .btn-primary { background: #fff; color: var(--violet-600); box-shadow: 0 10px 30px -6px rgba(0,0,0,0.35); }
.cta-banner .btn-primary:hover { background: #f4f2fb; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact-details { margin-top: 1.75rem; display: flex; flex-direction: column; gap: 0.9rem; }
.contact-details li { display: flex; align-items: center; gap: 0.75rem; color: var(--text-dim); }
.contact-details .icon { color: var(--violet-300); }
.contact-details a:hover { color: var(--violet-300); }

.contact-form {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: clamp(1.5rem, 3vw, 2.2rem);
  display: flex; flex-direction: column; gap: 1.1rem;
}
.form-row { display: flex; flex-direction: column; gap: 0.45rem; }
.form-row label { font-size: 0.85rem; font-weight: 600; color: var(--text-dim); }
.form-row input, .form-row select, .form-row textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  color: var(--text);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  border-color: var(--violet-400); background: rgba(255,255,255,0.06); outline: none;
}
.form-row textarea { resize: vertical; min-height: 100px; }
.form-note { font-size: 0.85rem; color: var(--violet-300); min-height: 1.2em; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding-top: clamp(3rem, 6vw, 4rem); margin-top: 2rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 3rem; flex-wrap: wrap; padding-bottom: 2.5rem; }
.footer-tagline { margin-top: 0.9rem; color: var(--text-faint); font-size: 0.9rem; }
.footer-nav { display: flex; gap: clamp(2rem, 6vw, 5rem); }
.footer-col h5 { font-family: var(--font-display); font-size: 0.85rem; color: var(--text); margin-bottom: 1rem; letter-spacing: 0.02em; }
.footer-col ul { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-col a { color: var(--text-faint); font-size: 0.9rem; transition: color 0.2s var(--ease); }
.footer-col a:hover { color: var(--violet-300); }
.footer-bottom { border-top: 1px solid var(--border); padding-block: 1.5rem; }
.footer-bottom p { font-size: 0.82rem; color: var(--text-faint); text-align: center; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(2, 1fr); row-gap: 2.5rem; }
  .process::before { display: none; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 320px; margin-bottom: 1rem; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed; inset: 0 0 auto 0; top: 68px;
    background: rgba(9, 8, 22, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem clamp(1.25rem, 4vw, 2.5rem) 2rem;
    transform: translateY(-12px);
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  }
  body.nav-open .main-nav { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
  .main-nav ul { flex-direction: column; gap: 1.1rem; }
  .main-nav a { font-size: 1.05rem; display: block; }
  .nav-toggle { display: inline-flex; }
  .header-actions .btn-sm { display: none; }
  body.nav-open .header-actions .btn-sm { display: none; }

  .grid-4 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .float-chip { font-size: 0.7rem; padding: 0.45rem 0.7rem; justify-content: center; }
  .chip-1, .chip-2, .chip-3, .chip-4 { position: static; margin: 0; }
  .hero-visual {
    aspect-ratio: auto; max-width: 340px; width: 100%; margin-inline: auto;
    display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem;
  }
  .visual-ring { grid-column: 1 / -1; position: relative; inset: auto; width: 200px; height: 200px; margin: 0 auto 0.5rem; }
}

@media (max-width: 460px) {
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .footer-inner { flex-direction: column; gap: 2rem; }
}