/* =========================================================
   ARSION.HU — Design System
   Dark purple · gradients · geometric
   ========================================================= */

:root {
  /* Backgrounds */
  --bg-0: #08040f;
  --bg-1: #0d0719;
  --bg-2: #140b25;
  --surface: rgba(124, 58, 237, 0.06);
  --surface-2: rgba(168, 85, 247, 0.10);
  --border: rgba(168, 85, 247, 0.16);
  --border-strong: rgba(168, 85, 247, 0.34);

  /* Brand purples */
  --violet-900: #2b1259;
  --violet-700: #5b21b6;
  --violet-600: #7c3aed;
  --violet-500: #8b5cf6;
  --violet-400: #a855f7;
  --violet-300: #c4b5fd;
  --magenta: #d946ef;
  --magenta-soft: #e879f9;

  /* Text */
  --text: #efeafb;
  --text-soft: #cbc2e6;
  --text-muted: #968bb5;
  --text-dim: #6f6690;

  /* Gradients */
  --grad-brand: linear-gradient(120deg, #8b5cf6 0%, #a855f7 45%, #d946ef 100%);
  --grad-brand-soft: linear-gradient(120deg, rgba(139,92,246,0.18), rgba(217,70,239,0.18));
  --grad-text: linear-gradient(100deg, #c4b5fd 0%, #e879f9 60%, #a855f7 100%);

  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-0);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Ambient gradient field over the whole page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 600px at 12% -5%, rgba(124,58,237,0.30), transparent 60%),
    radial-gradient(800px 700px at 92% 8%, rgba(217,70,239,0.18), transparent 55%),
    radial-gradient(900px 900px at 50% 110%, rgba(91,33,182,0.28), transparent 60%),
    var(--bg-0);
}

/* Faint geometric grid */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(168,85,247,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168,85,247,0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 40%, transparent 100%);
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- Typography helpers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet-300);
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--surface);
  backdrop-filter: blur(6px);
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--magenta-soft);
  box-shadow: 0 0 10px var(--magenta);
}

h1, h2, h3 { line-height: 1.1; letter-spacing: -0.02em; font-weight: 700; }
h2.section-title {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  margin: 18px 0 16px;
  max-width: 760px;
}
.lead { font-size: 1.12rem; color: var(--text-soft); max-width: 640px; }

.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 14px 26px;
  border-radius: 100px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
}
.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: 0 10px 30px -8px rgba(168,85,247,0.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -8px rgba(217,70,239,0.6); }
.btn-ghost {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: var(--surface-2); transform: translateY(-2px); }
.btn .arrow { transition: transform .25s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Nav ---------- */
header.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
header.nav.scrolled {
  background: rgba(11, 6, 21, 0.72);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: 1.22rem; letter-spacing: -0.02em; }
.brand .mark {
  width: 34px; height: 34px;
  color: #fff;
  display: grid; place-items: center;
  border-radius: 9px;
  background: linear-gradient(150deg, rgba(139,92,246,0.25), rgba(217,70,239,0.18));
  border: 1px solid var(--border-strong);
}
.brand .mark svg { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a.link { font-size: 0.94rem; color: var(--text-muted); transition: color .2s; }
.nav-links a.link:hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: 0; color: var(--text); cursor: pointer; }

/* ---------- Section scaffolding ---------- */
section { position: relative; padding: 110px 0; }
.section-head { margin-bottom: 56px; }

/* ---------- Hero ---------- */
.hero { padding: 168px 0 120px; text-align: center; }
.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 5rem);
  max-width: 940px;
  margin: 26px auto 0;
}
.hero h1 .line2 { display: block; }
.hero p.sub {
  max-width: 660px;
  margin: 26px auto 38px;
  font-size: 1.18rem;
  color: var(--text-soft);
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-orbit {
  position: absolute; left: 50%; top: 46%;
  transform: translate(-50%, -50%);
  width: min(720px, 92vw); aspect-ratio: 1;
  z-index: -1; opacity: 0.6;
  pointer-events: none;
}
.hero-orbit .ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid rgba(168,85,247,0.14);
}
.hero-orbit .ring.r2 { inset: 14%; border-color: rgba(217,70,239,0.12); }
.hero-orbit .ring.r3 { inset: 30%; border-color: rgba(168,85,247,0.10); }

.trust-row {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 34px;
  margin-top: 58px; color: var(--text-muted); font-size: 0.92rem;
}
.trust-row span { display: inline-flex; align-items: center; gap: 9px; }
.trust-row span::before { content: ""; width: 7px; height: 7px; background: var(--grad-brand); border-radius: 2px; transform: rotate(45deg); }

/* ---------- Problem cards ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.card {
  position: relative;
  background: linear-gradient(180deg, rgba(168,85,247,0.07), rgba(124,58,237,0.02));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  overflow: hidden;
  transition: transform .35s var(--ease), border-color .35s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-brand); opacity: 0.7;
}
.card .tag {
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--magenta-soft);
}
.card h3 { font-size: 1.4rem; margin: 10px 0 14px; }
.card p { color: var(--text-soft); margin-bottom: 18px; }
.q-list { list-style: none; display: grid; gap: 11px; }
.q-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-soft); font-size: 0.98rem; }
.q-list li::before {
  content: "?"; flex: none; width: 22px; height: 22px; margin-top: 1px;
  display: grid; place-items: center; border-radius: 6px; font-weight: 700; font-size: 0.8rem;
  color: var(--violet-300); background: var(--surface-2); border: 1px solid var(--border);
}
.q-foot { margin-top: 20px; font-weight: 600; color: var(--text); }

/* ---------- What We Do ---------- */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.pillar {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  background:
    radial-gradient(600px 300px at 20% -20%, rgba(124,58,237,0.16), transparent 60%),
    linear-gradient(180deg, rgba(20,11,37,0.6), rgba(13,7,25,0.4));
  position: relative;
}
.pillar .num {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.18em; color: var(--violet-300);
  text-transform: uppercase;
}
.pillar h3 { font-size: 1.7rem; margin: 12px 0 8px; }
.pillar > p { color: var(--text-soft); }
.block-label {
  margin: 24px 0 12px; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--violet-400);
}
.feat { list-style: none; display: grid; gap: 10px; }
.feat li { display: flex; gap: 12px; color: var(--text-soft); font-size: 0.97rem; }
.feat li svg { flex: none; width: 19px; height: 19px; margin-top: 3px; color: var(--magenta-soft); }
.you-get {
  margin-top: 22px; padding: 16px 18px; border-radius: var(--radius-sm);
  background: var(--grad-brand-soft); border: 1px solid var(--border);
  font-size: 0.95rem; color: var(--text-soft);
}
.you-get b { color: var(--text); }

/* ---------- Three layers (Acquisition / Foundation / Systems) ---------- */
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 50px; }
.layer {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px;
  background: linear-gradient(180deg, rgba(168,85,247,0.07), rgba(124,58,237,0.02));
  overflow: hidden;
  transition: transform .35s var(--ease), border-color .35s;
}
.layer:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.layer::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-brand); opacity: 0.7;
}
.layer .layer-icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--grad-brand-soft); border: 1px solid var(--border);
  color: var(--magenta-soft); margin-bottom: 18px;
}
.layer .layer-icon svg { width: 24px; height: 24px; }
.layer .tag {
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--magenta-soft);
}
.layer h3 { font-size: 1.4rem; margin: 8px 0 12px; }
.layer p { color: var(--text-soft); font-size: 0.97rem; }

/* Divider label before deep-dive / sub-sections */
.deep-label {
  display: flex; align-items: center; gap: 18px;
  margin: 6px 0 28px;
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--violet-300);
  text-align: center;
}
.deep-label::before, .deep-label::after {
  content: ""; flex: 1; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong));
}
.deep-label::after { background: linear-gradient(90deg, var(--border-strong), transparent); }
section.sec-light .deep-label { color: #6d28d9; }

/* Promise strip */
.promise {
  margin-top: 50px; text-align: center;
  font-size: clamp(1.2rem, 2.6vw, 1.6rem); font-weight: 700; letter-spacing: -0.01em;
}

/* ---------- Process timeline ---------- */
.timeline { position: relative; display: grid; gap: 22px; }
.timeline::before {
  content: ""; position: absolute; left: 27px; top: 12px; bottom: 12px; width: 2px;
  background: linear-gradient(180deg, var(--violet-500), var(--magenta), transparent);
}
.phase {
  position: relative; display: grid; grid-template-columns: 56px 1fr; gap: 22px;
  align-items: start;
}
.phase .dot {
  position: relative; z-index: 1;
  width: 56px; height: 56px; border-radius: 14px;
  display: grid; place-items: center; font-weight: 700; font-size: 0.92rem;
  background: linear-gradient(150deg, var(--violet-600), var(--magenta));
  color: #fff; box-shadow: 0 8px 24px -8px rgba(168,85,247,0.6);
}
.phase .pbody {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 28px; background: linear-gradient(180deg, rgba(168,85,247,0.05), transparent);
  transition: border-color .3s, transform .3s var(--ease);
}
.phase:hover .pbody { border-color: var(--border-strong); transform: translateX(4px); }
.phase .week { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--magenta-soft); }
.phase h3 { font-size: 1.35rem; margin: 6px 0 10px; }
.phase p { color: var(--text-soft); margin-bottom: 14px; }
.phase .mini { list-style: none; display: grid; gap: 8px; margin-bottom: 16px; }
.phase .mini li { display: flex; gap: 10px; color: var(--text-muted); font-size: 0.93rem; }
.phase .mini li::before { content: ""; flex: none; width: 6px; height: 6px; margin-top: 8px; background: var(--violet-400); border-radius: 2px; transform: rotate(45deg); }
.deliverable {
  display: inline-flex; align-items: center; gap: 9px; font-size: 0.88rem; font-weight: 600;
  color: var(--text); padding: 8px 14px; border-radius: 100px;
  background: var(--surface-2); border: 1px solid var(--border);
}
.deliverable b { color: var(--violet-300); font-weight: 700; }

/* ---------- Outcomes ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.outcome {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 30px;
  background: linear-gradient(180deg, rgba(168,85,247,0.06), transparent);
  transition: transform .3s var(--ease), border-color .3s;
}
.outcome:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.outcome .oicon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--grad-brand-soft); border: 1px solid var(--border); color: var(--magenta-soft);
  margin-bottom: 16px;
}
.outcome .oicon svg { width: 24px; height: 24px; }
.outcome h3 { font-size: 1.22rem; margin-bottom: 14px; }
.outcome ul { list-style: none; display: grid; gap: 9px; }
.outcome ul li { display: flex; gap: 10px; color: var(--text-soft); font-size: 0.95rem; }
.outcome ul li::before { content: ""; flex: none; width: 6px; height: 6px; margin-top: 8px; background: var(--grad-brand); border-radius: 50%; }

/* ---------- Proof / mockups ---------- */
.proof-grid { display: grid; gap: 30px; }
.mock {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center;
  border: 1px solid var(--border); border-radius: 24px; padding: 14px;
  background: linear-gradient(180deg, rgba(20,11,37,0.55), rgba(13,7,25,0.3));
  overflow: hidden;
}
.mock:nth-child(even) { grid-template-columns: 1fr 1.05fr; }
.mock:nth-child(even) .mock-copy { order: 2; }
.mock-frame {
  border-radius: 16px; overflow: hidden; border: 1px solid var(--border-strong);
  background: #0c0719; box-shadow: 0 30px 60px -25px rgba(0,0,0,0.7);
}
.mock-copy { padding: 26px 30px; }
.mock-copy .tag { font-size: 0.74rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--magenta-soft); }
.mock-copy h3 { font-size: 1.55rem; margin: 12px 0 12px; }
.mock-copy p { color: var(--text-soft); }
.mock-copy .chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
.mock-copy .chips span {
  font-size: 0.82rem; padding: 6px 13px; border-radius: 100px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text-soft);
}

/* ---------- Ventures (real proof) ---------- */
.ventures { display: grid; grid-template-columns: 1fr; gap: 26px; margin-bottom: 54px; }
.venture {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  background: linear-gradient(180deg, rgba(168,85,247,0.07), rgba(124,58,237,0.02));
  overflow: hidden;
  transition: transform .35s var(--ease), border-color .35s;
}
.venture:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.venture::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-brand); opacity: 0.7;
}
.venture .tag {
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--magenta-soft);
}
.venture h3 { font-size: 1.55rem; margin: 10px 0 12px; }
.venture p { color: var(--text-soft); }
.venture .chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
.venture .chips span {
  font-size: 0.82rem; padding: 6px 13px; border-radius: 100px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text-soft);
}
.venture-link {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 20px; font-weight: 600; font-size: 0.95rem;
  color: var(--violet-300); border-bottom: 1px solid var(--border-strong);
  transition: color .2s;
}
.venture-link:hover { color: var(--text); }
.venture-link .arrow { transition: transform .25s var(--ease); }
.venture-link:hover .arrow { transform: translateX(4px); }
section.sec-light .venture { background: #ffffff; box-shadow: 0 18px 44px -22px rgba(43,18,89,0.22); }
section.sec-light .venture .tag { color: #c026d3; }
section.sec-light .venture-link { color: #6d28d9; }
section.sec-light .venture-link:hover { color: var(--text); }

/* ---------- Why Arsion (founder) ---------- */
.why-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; }
.why-p { color: var(--text-soft); margin-top: 18px; font-size: 1.06rem; max-width: 560px; }
.why-that { font-weight: 700; color: var(--text); font-size: 1.25rem; }
.founder { margin-top: 30px; display: grid; gap: 3px; padding-left: 16px; border-left: 3px solid; border-image: var(--grad-brand) 1; }
.founder .f-name { font-weight: 700; font-size: 1.05rem; }
.founder .f-role { color: var(--text-muted); font-size: 0.92rem; }
.why-card {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 34px;
  background: linear-gradient(180deg, rgba(168,85,247,0.07), transparent);
}
.why-card h4 { font-size: 0.84rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--violet-300); margin-bottom: 18px; }
.why-card .qs { list-style: none; display: grid; gap: 16px; }
.why-card .qs li { display: flex; gap: 14px; align-items: flex-start; color: var(--text-soft); }
.why-card .qs li .n {
  flex: none; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  font-weight: 700; font-size: 0.85rem; background: var(--grad-brand); color: #fff;
}
.why-close {
  margin: 64px auto 0; max-width: 680px; text-align: center;
  font-size: clamp(1.2rem, 2.6vw, 1.5rem); font-weight: 700; letter-spacing: -0.01em;
}

/* ---------- Who we work with ---------- */
.audience {
  border: 1px solid var(--border-strong); border-radius: 24px; padding: 56px;
  text-align: center;
  background:
    radial-gradient(600px 300px at 50% 0%, rgba(217,70,239,0.16), transparent 60%),
    linear-gradient(180deg, rgba(124,58,237,0.10), transparent);
}
.audience h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); max-width: 720px; margin: 14px auto 18px; }
.audience .big-q {
  max-width: 680px; margin: 24px auto 0; font-size: 1.22rem; color: var(--text);
  font-weight: 600;
}
.audience .big-q .grad-text { font-weight: 700; }

/* ---------- How to start ---------- */
.start { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.start-card {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 34px;
  background: linear-gradient(180deg, rgba(168,85,247,0.07), transparent);
}
.start-card h4 { font-size: 0.84rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--violet-300); margin-bottom: 18px; }
.start-card .qs { list-style: none; display: grid; gap: 16px; }
.start-card .qs li { display: flex; gap: 14px; align-items: flex-start; color: var(--text-soft); }
.start-card .qs li .n {
  flex: none; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  font-weight: 700; font-size: 0.85rem; background: var(--grad-brand); color: #fff;
}
.start-cta { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.start-note { margin-top: 16px; color: var(--text-muted); font-size: 0.92rem; }
.start-note a { color: var(--violet-300); border-bottom: 1px solid var(--border-strong); }

/* ---------- Footer ---------- */
footer.site {
  border-top: 1px solid var(--border); padding: 64px 0 40px; margin-top: 40px;
  background: linear-gradient(180deg, transparent, rgba(124,58,237,0.06));
}
.foot-grid { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.foot-brand .brand { font-size: 1.4rem; margin-bottom: 12px; }
.foot-brand .tagline { color: var(--violet-300); font-weight: 600; letter-spacing: 0.02em; }
.foot-col h5 { font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 14px; }
.foot-col a, .foot-col p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 9px; transition: color .2s; }
.foot-col a:hover { color: var(--text); }
.foot-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border);
  color: var(--text-dim); font-size: 0.88rem;
}
.foot-bottom .links { display: flex; gap: 22px; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  section { padding: 84px 0; }
  .grid-2, .duo, .grid-4, .start, .trio, .why-grid { grid-template-columns: 1fr; }
  .mock, .mock:nth-child(even) { grid-template-columns: 1fr; }
  .mock:nth-child(even) .mock-copy { order: 0; }
  .mock-copy { padding: 22px; }
  .nav-links { display: none; }
  .nav-toggle { display: grid; place-items: center; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: flex-start; gap: 18px;
    position: absolute; top: 72px; left: 0; right: 0; padding: 24px 28px;
    background: rgba(11,6,21,0.96); border-bottom: 1px solid var(--border); backdrop-filter: blur(16px);
  }
  .nav-links.open .btn { width: 100%; justify-content: center; }
  .audience { padding: 40px 26px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 20px; }
  .phase { grid-template-columns: 44px 1fr; gap: 14px; }
  .timeline::before { left: 21px; }
  .phase .dot { width: 44px; height: 44px; font-size: 0.78rem; }
  .card, .pillar { padding: 26px; }
}

/* =========================================================
   V2 — Light/dark mix · 3D hero · section visuals
   ========================================================= */

:root {
  /* visual-illustration tokens (dark default) */
  --vis-panel: rgba(255,255,255,0.04);
  --vis-line: rgba(168,85,247,0.32);
  --vis-fill: rgba(196,181,253,0.35);
}

/* ---------- HERO: 3D node network ---------- */
.hero { overflow: hidden; }
#heroCanvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}
.hero-vignette {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(ellipse 50% 40% at 50% 44%, rgba(8,4,15,0.42) 0%, rgba(8,4,15,0.16) 55%, transparent 100%),
    linear-gradient(180deg, transparent 72%, var(--bg-0) 100%);
}
.hero-content { position: relative; z-index: 2; }
.hero h1 { text-shadow: 0 2px 40px rgba(8,4,15,0.8); }
.hero p.sub { text-shadow: 0 1px 24px rgba(8,4,15,0.9); }

/* ---------- LIGHT SECTIONS ---------- */
section.sec-light {
  --text: #181028;
  --text-soft: #463a66;
  --text-muted: #695e8c;
  --text-dim: #8d84ab;
  --surface: rgba(124,58,237,0.06);
  --surface-2: rgba(124,58,237,0.10);
  --border: rgba(91,33,182,0.14);
  --border-strong: rgba(91,33,182,0.30);
  --grad-text: linear-gradient(100deg, #6d28d9 0%, #c026d3 60%, #7c3aed 100%);
  --vis-panel: #ffffff;
  --vis-line: rgba(91,33,182,0.22);
  --vis-fill: rgba(124,58,237,0.28);
  background:
    radial-gradient(800px 400px at 85% 0%, rgba(217,70,239,0.07), transparent 60%),
    radial-gradient(800px 500px at 10% 100%, rgba(124,58,237,0.07), transparent 60%),
    linear-gradient(180deg, #faf8ff 0%, #f1ecfc 100%);
  color: var(--text);
  border-top: 1px solid rgba(91,33,182,0.10);
  border-bottom: 1px solid rgba(91,33,182,0.10);
}
section.sec-light .eyebrow { color: #6d28d9; background: rgba(124,58,237,0.07); }
section.sec-light .eyebrow::before { background: #c026d3; box-shadow: 0 0 10px rgba(192,38,211,0.5); }
section.sec-light .card,
section.sec-light .pbody,
section.sec-light .mock {
  background: #ffffff;
  box-shadow: 0 18px 44px -22px rgba(43,18,89,0.22);
}
section.sec-light .card .tag,
section.sec-light .mock-copy .tag { color: #c026d3; }
section.sec-light .q-list li::before { color: #6d28d9; background: rgba(124,58,237,0.08); }
section.sec-light .mock-frame { background: #0c0719; }
section.sec-light .deliverable { background: rgba(124,58,237,0.08); }
section.sec-light .phase .mini li::before { background: #7c3aed; }
section.sec-light .timeline::before {
  background: linear-gradient(180deg, #7c3aed, #c026d3, rgba(192,38,211,0));
}

/* ---------- Problem card visuals ---------- */
.card-visual {
  margin: -34px -34px 24px;
  padding: 18px 18px 0;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(124,58,237,0.05), transparent);
}
.card-visual svg { width: 100%; height: auto; }
.card-visual .vis-label {
  font-family: var(--font); font-size: 12px; font-weight: 600;
  fill: var(--text-muted); text-anchor: middle;
}
.card-visual .vis-q {
  font-family: var(--font); font-size: 15px; font-weight: 800;
  fill: #c026d3; text-anchor: middle;
  animation: blink 2.4s ease-in-out infinite;
}
.card-visual .vis-x {
  font-family: var(--font); font-size: 13px; font-weight: 800;
  fill: #e0457b; text-anchor: middle;
  animation: blink 2.4s ease-in-out infinite;
}
.card-visual .d2 { animation-delay: .8s; }
.card-visual .d3 { animation-delay: 1.6s; }
.bad-cell { fill: rgba(224,69,123,0.30); animation: blink 2.4s ease-in-out infinite; }
.broken-link {
  stroke: rgba(91,33,182,0.35); stroke-width: 2; stroke-dasharray: 6 7;
  animation: dashmove 2.5s linear infinite;
}
@keyframes blink { 0%,100% { opacity: .35; } 50% { opacity: 1; } }
@keyframes dashmove { to { stroke-dashoffset: -26; } }

/* ---------- Pillar visuals (What we do) ---------- */
.pillar-visual {
  margin: -36px -36px 26px;
  padding: 20px 20px 4px;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(420px 130px at 50% 0%, rgba(124,58,237,0.16), transparent 75%);
}
.pillar-visual svg { width: 100%; height: auto; }
.pillar-visual .chaos circle { fill: rgba(232,121,249,0.75); animation: jitter 3.4s ease-in-out infinite; }
.pillar-visual .chaos circle:nth-child(2n) { animation-delay: .7s; }
.pillar-visual .chaos circle:nth-child(3n) { animation-delay: 1.5s; }
@keyframes jitter {
  0%,100% { transform: translate(0,0); }
  30% { transform: translate(2.5px,-3px); }
  65% { transform: translate(-2.5px,2px); }
}
.pillar-visual .flow-arrow line,
.pillar-visual .flow-arrow path { stroke: var(--violet-400); stroke-width: 2.4; stroke-linecap: round; }
.pillar-visual .flow-arrow { animation: nudge 2.2s ease-in-out infinite; }
@keyframes nudge { 0%,100% { transform: translateX(0); } 50% { transform: translateX(6px); } }
.pillar-visual .order circle { fill: var(--violet-300); }
.pillar-visual .order line { stroke: rgba(168,85,247,0.35); stroke-width: 1.4; }
.pillar-visual .net-lines line { stroke: rgba(168,85,247,0.4); stroke-width: 1.4; stroke-dasharray: 4 6; animation: dashmove 2s linear infinite; }
.pillar-visual .ai-core { fill: var(--magenta); }
.pillar-visual .ai-bolt { fill: #fff; }
.pillar-visual .ai-ring { fill: none; stroke: rgba(217,70,239,0.5); stroke-width: 1.6; transform-origin: 180px 55px; animation: ringpulse 2.6s ease-out infinite; }
.pillar-visual .ai-ring.r2 { animation-delay: 1.3s; }
@keyframes ringpulse {
  0% { transform: scale(0.55); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}
.pillar-visual .sat circle { fill: var(--violet-300); }

/* ---------- Outcome visuals ---------- */
.ovisual {
  position: relative;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 18px;
  margin-bottom: 20px; padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.ovisual .oword {
  font-size: 2.1rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1;
}
.ovisual svg { width: 46%; max-width: 200px; height: auto; flex: none; }
.ovisual .spark { fill: none; stroke: var(--violet-400); stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.ovisual .spark-dot { fill: var(--magenta-soft); animation: blink 1.8s ease-in-out infinite; }
.ovisual .track { stroke: rgba(168,85,247,0.28); stroke-width: 4; stroke-linecap: round; }
.ovisual .knob { fill: var(--magenta-soft); stroke: rgba(8,4,15,0.4); stroke-width: 2; }
.ovisual .k1 { animation: slide1 4s ease-in-out infinite; }
.ovisual .k2 { animation: slide2 5s ease-in-out infinite; }
.ovisual .k3 { animation: slide3 4.5s ease-in-out infinite; }
@keyframes slide1 { 0%,100% { transform: translateX(0); } 50% { transform: translateX(-44px); } }
@keyframes slide2 { 0%,100% { transform: translateX(0); } 50% { transform: translateX(58px); } }
@keyframes slide3 { 0%,100% { transform: translateX(0); } 50% { transform: translateX(-30px); } }
.ovisual .auto-flow {
  fill: none; stroke: var(--violet-400); stroke-width: 2.4; stroke-linecap: round;
  stroke-dasharray: 10 9; animation: dashmove 1.6s linear infinite;
}
.ovisual .node-pt { fill: var(--magenta-soft); }
.ovisual .bar { fill: rgba(168,85,247,0.55); transform-origin: bottom; }
.ovisual .b4 { fill: var(--magenta); }
.ovisual .bar { animation: grow 3.6s ease-in-out infinite; }
.ovisual .b2 { animation-delay: .3s; }
.ovisual .b3 { animation-delay: .6s; }
.ovisual .b4 { animation-delay: .9s; }
@keyframes grow { 0%,100% { transform: scaleY(1); } 50% { transform: scaleY(0.82); } }
.ovisual .flat-line { stroke: rgba(232,121,249,0.55); stroke-width: 2; stroke-dasharray: 3 6; }

/* ---------- Proof: browser chrome + tilt ---------- */
.mock-frame { position: relative; padding-top: 30px; }
.mock-frame::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 30px;
  background: linear-gradient(180deg, #1b1130, #120a22);
  border-bottom: 1px solid var(--border);
}
.mock-frame::after {
  content: ""; position: absolute; top: 11px; left: 14px;
  width: 8px; height: 8px; border-radius: 50%;
  background: #e0457b;
  box-shadow: 14px 0 0 #e8b04b, 28px 0 0 #4bc97f;
}
.mock-frame img { transition: transform .5s var(--ease); }
.mock:hover .mock-frame img { transform: scale(1.025); }
.mock { transition: transform .4s var(--ease), box-shadow .4s var(--ease); }
.mock:hover { transform: translateY(-4px); }

/* ---------- Language switcher ---------- */
.lang-switch {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  margin-left: 22px;
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  background: var(--surface);
  backdrop-filter: blur(6px);
  flex: none;
}
.lang-switch button {
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 6px 11px;
  border: 0;
  border-radius: 100px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: background .2s, color .2s;
}
.lang-switch button:hover { color: var(--text); }
.lang-switch button.active {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: 0 4px 14px -4px rgba(168,85,247,0.6);
}

/* ---------- Responsive for new elements ---------- */
@media (max-width: 900px) {
  .card-visual { margin: -26px -26px 20px; }
  .pillar-visual { margin: -26px -26px 22px; }
  .ovisual .oword { font-size: 1.7rem; }
  .nav-inner { gap: 12px; }
  .lang-switch { margin-left: auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}