:root {
  --bg: #08090d;
  --bg-alt: #0d0f16;
  --surface: #12141c;
  --surface-2: #171a24;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #eef0f6;
  --text-dim: #9599ab;
  --text-faint: #63677a;
  --accent: #7c6cf6;
  --accent-2: #3ed0c9;
  --accent-warn: #f6a65c;
  --radius: 16px;
  --max-width: 1180px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; zoom: 1.25; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.15em 0.45em;
  border-radius: 6px;
  font-size: 0.9em;
  color: var(--accent-2);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.text-gradient {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: linear-gradient(100deg, var(--accent), #6355e0);
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(124, 108, 246, 0.6);
}
.btn--primary:hover { background: linear-gradient(100deg, #8b7cff, #7166e8); }

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}
.btn--ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }

.btn--lg { padding: 13px 26px; font-size: 1rem; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 9, 13, 0.5);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.nav--scrolled {
  background: rgba(8, 9, 13, 0.85);
  border-bottom-color: var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand__mark { display: inline-flex; }
.nav__links {
  display: flex;
  gap: 32px;
}
.nav__links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.nav__links a:hover { color: var(--text); }

.nav__dropdown { position: relative; }
.nav__dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr));
  gap: 2px;
  padding: 8px;
  background: rgba(14, 15, 22, 0.98);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease;
}
/* Invisible bridge so the pointer can travel from the trigger into the menu
   without the gap between them registering as a mouseleave. */
.nav__dropdown-menu::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -12px;
  height: 12px;
}
.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown:focus-within .nav__dropdown-menu,
.nav__dropdown.is-open .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.nav__dropdown-menu a {
  display: block;
  padding: 8px 12px;
  border-radius: 6px;
  white-space: nowrap;
  color: var(--text-dim);
  font-size: 0.88rem;
}
.nav__dropdown-menu a:hover { color: var(--text); background: rgba(255, 255, 255, 0.06); }

.nav__cta { display: flex; gap: 10px; align-items: center; }
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav__burger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; }
.nav__mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 24px 20px;
  border-top: 1px solid var(--border);
}
.nav__mobile a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 10px 0;
  font-weight: 500;
}
.nav__mobile.open { display: flex; }
.nav__mobile-sub { padding-left: 16px; font-size: 0.92rem; opacity: 0.85; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  top: -200px;
  left: 50%;
  width: 900px;
  height: 600px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(124, 108, 246, 0.35), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}
.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}
.hero__copy { max-width: 620px; }
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero__visual img { width: 100%; max-width: 480px; height: auto; }
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  transition: opacity 0.8s ease;
  touch-action: pan-y;
}
.hero__visual.has-3d .hero__canvas { opacity: 1; }
.hero__visual.has-3d img { opacity: 0; transition: opacity 0.8s ease; }

.hero__label-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.8s ease;
}
.hero__visual.has-3d .hero__label-layer { opacity: 1; }

.hero-label {
  pointer-events: none;
  white-space: nowrap;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text);
  background: rgba(18, 20, 28, 0.75);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 4px 10px;
}
.hero-label--hub {
  font-size: 0.6rem;
  font-weight: 700;
  color: #fff;
  background: rgba(8, 9, 13, 0.55);
  border-color: rgba(255, 255, 255, 0.3);
}
.hero-label--client { color: var(--text); }
.hero-label--target { color: var(--text); }
.eyebrow {
  display: inline-block;
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin: 0 0 24px;
  font-weight: 800;
}
.hero__sub {
  color: var(--text-dim);
  font-size: 1.15rem;
  max-width: 560px;
  margin: 0 0 36px;
}
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 100px 0; }
.section--alt { background: var(--bg-alt); }
.section__eyebrow {
  color: var(--accent-2);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
.section__title {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  max-width: 720px;
}
.section__lead {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 0 48px;
}
.section__closing {
  font-size: 1.1rem;
  color: var(--text);
  max-width: 680px;
  margin: 32px 0 0;
}
.section__note {
  color: var(--text-faint);
  font-size: 0.88rem;
  font-style: italic;
  max-width: 680px;
  margin: 32px 0 0;
}

/* ---------- Problem alert list ---------- */
.alert-list {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 640px;
}
.alert-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-dim);
  font-size: 0.98rem;
}
.alert-list img { flex-shrink: 0; margin-top: 2px; }

/* ---------- Modules grid ---------- */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.module-card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.module-card__top { display: flex; align-items: center; margin-bottom: 14px; }
.module-card__icon { border-radius: 12px; }
.module-card h3 { margin: 0 0 10px; font-size: 1.15rem; letter-spacing: -0.01em; }
.module-card p { color: var(--text-dim); font-size: 0.92rem; margin: 0 0 16px; }
.module-card__link {
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.88rem;
}
.module-card__link:hover { color: var(--text); }

/* ---------- Pillars (solution) ---------- */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.pillar-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.pillar-card:hover { border-color: rgba(124, 108, 246, 0.5); transform: translateY(-2px); }
.pillar-card__icon { border-radius: 12px; margin-bottom: 16px; }
.pillar-card h3 { margin: 0 0 10px; font-size: 1.1rem; letter-spacing: -0.01em; }
.pillar-card p { margin: 0; color: var(--text-dim); font-size: 0.9rem; }

/* ---------- Tilt (pointer-driven 3D accent, see main.js) ---------- */
.pillar-card, .gate, .surface-item, .compare-card { perspective: 700px; }
.tilt { transform-style: preserve-3d; transition: transform 0.4s ease; will-change: transform; }
.tilt.is-tracking { transition: none; }
.surface-item .tilt { display: flex; gap: 16px; align-items: flex-start; width: 100%; }
@media (hover: none) {
  .tilt { transform: none !important; }
}

/* ---------- Gates (how it works) ---------- */
.gates {
  display: flex;
  align-items: stretch;
  gap: 0;
}
.gate {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.gate__icon { margin-bottom: 14px; }
.gate__step {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 8px;
}
.gate h3 { margin: 0 0 10px; font-size: 1.1rem; }
.gate p { margin: 0; color: var(--text-dim); font-size: 0.9rem; }
.gate__connector {
  width: 32px;
  flex-shrink: 0;
  align-self: center;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0.5;
}

/* ---------- Surfaces ---------- */
.surface-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 8px;
}
.surface-item img { flex-shrink: 0; border-radius: 10px; }
.surface-item h4 { margin: 0 0 6px; font-size: 1rem; }
.surface-item p { margin: 0; color: var(--text-dim); font-size: 0.88rem; }

/* ---------- Compare ---------- */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.compare-card {
  border-top: 2px solid var(--border-strong);
  padding-top: 16px;
}
.compare-card h4 { margin: 0 0 10px; font-size: 1rem; }
.compare-card p { margin: 0; color: var(--text-dim); font-size: 0.9rem; }
.compare-card em { color: var(--text); font-style: normal; font-weight: 600; }

/* ---------- Trust ---------- */
.trust__inner {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}
.trust__icon { flex-shrink: 0; border-radius: 16px; }
.trust .section__title, .trust .section__eyebrow { max-width: none; }

/* ---------- Social proof placeholder ---------- */
.proof-placeholder { text-align: center; padding: 72px 0; }
.proof-placeholder .container { max-width: 640px; }
.proof-placeholder .section__eyebrow { color: var(--text-faint); }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 760px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--accent-2);
  font-weight: 700;
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { margin: 14px 0 0; color: var(--text-dim); font-size: 0.92rem; }

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.pillar-grid .reveal:nth-child(2) { transition-delay: 0.08s; }
.pillar-grid .reveal:nth-child(3) { transition-delay: 0.16s; }
.pillar-grid .reveal:nth-child(4) { transition-delay: 0.24s; }
.gates .reveal:nth-of-type(2) { transition-delay: 0.12s; }
.gates .reveal:nth-of-type(3) { transition-delay: 0.24s; }
.surface-grid .reveal:nth-child(2) { transition-delay: 0.06s; }
.surface-grid .reveal:nth-child(3) { transition-delay: 0.12s; }
.surface-grid .reveal:nth-child(4) { transition-delay: 0.18s; }
.surface-grid .reveal:nth-child(5) { transition-delay: 0.24s; }
.surface-grid .reveal:nth-child(6) { transition-delay: 0.3s; }
.compare-grid .reveal:nth-child(2) { transition-delay: 0.08s; }
.compare-grid .reveal:nth-child(3) { transition-delay: 0.16s; }
.compare-grid .reveal:nth-child(4) { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .tilt { transition: none; }
  .hero__canvas, .hero__label-layer, .hero__visual.has-3d img { transition: none; }
}

/* ---------- Page header (sub-pages) ---------- */
.page-header {
  padding: 120px 0 60px;
  text-align: center;
}
.page-header .container { max-width: 720px; }
.page-header h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.page-header .hero__sub { margin: 0 auto; }

/* ---------- Module detail page ---------- */
.module-hero { padding: 100px 0 60px; }
.module-hero__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.module-hero__grid h1 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.module-hero__description { color: var(--text-dim); font-size: 1rem; margin: 0 0 32px; max-width: 560px; }
.module-hero__visual { display: flex; justify-content: center; }
.module-hero__visual img { border-radius: 28px; width: 160px; height: 160px; }
.breadcrumb {
  display: inline-block;
  color: var(--text-faint);
  text-decoration: none;
  font-size: 0.85rem;
  margin-bottom: 20px;
}
.breadcrumb:hover { color: var(--accent-2); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.feature-item {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.feature-item h4 { margin: 0 0 8px; font-size: 1rem; letter-spacing: -0.01em; }
.feature-item p { margin: 0; color: var(--text-dim); font-size: 0.9rem; }

/* ---------- Data figures (dashboard / chart product shots) ---------- */
.section__figure {
  margin: 0 0 48px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  position: relative;
}
.section__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  pointer-events: none;
  background: radial-gradient(120% 100% at 50% -10%, rgba(124, 108, 246, 0.10), transparent 60%);
}
.section__figure img { display: block; width: 100%; height: auto; }
.section__figure figcaption {
  color: var(--text-faint);
  font-size: 0.82rem;
  text-align: center;
  padding: 14px 16px 0;
}
.section__figure--caption { box-shadow: none; }
.section__figure--caption img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.section__figure--caption::after { display: none; }

.problem-statement {
  font-size: 1.2rem;
  color: var(--text);
  max-width: 760px;
  margin: 0;
  font-weight: 500;
  line-height: 1.5;
}

/* ---------- CTA ---------- */
.cta {
  padding: 100px 0;
  text-align: center;
  background: radial-gradient(closest-side, rgba(124, 108, 246, 0.18), transparent 70%), var(--bg);
}
.cta__inner h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); max-width: 620px; margin: 0 auto 16px; font-weight: 800; letter-spacing: -0.02em; }
.cta__inner > p { color: var(--text-dim); margin: 0 0 32px; }
.cta__inner .hero__actions { justify-content: center; }

/* ---------- Contact page ---------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 56px;
  align-items: start;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-row--split .form-row { margin: 0; }
.form-row label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dim);
}
.form-row label span { color: var(--accent-2); margin-left: 2px; }
.form-row input,
.form-row textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124, 108, 246, 0.2);
}
.form-row input:invalid:not(:placeholder-shown) { border-color: var(--accent-warn); }
.contact-form .btn { align-self: flex-start; }
.form-status {
  font-size: 0.9rem;
  min-height: 1.2em;
}
.form-status.is-success { color: var(--accent-2); }
.form-status.is-error { color: var(--accent-warn); }

.contact-info {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.contact-info h3 { margin: 0 0 20px; font-size: 1.05rem; letter-spacing: -0.01em; }
.contact-info__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-info__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-dim);
  font-size: 0.92rem;
}
.contact-info__num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(124, 108, 246, 0.15);
  color: var(--accent-2);
  font-weight: 700;
  font-size: 0.8rem;
}
.contact-info__note {
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 0.85rem;
}
.contact-info__note a { color: var(--accent-2); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 36px 0; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.brand--footer { font-size: 1.05rem; }
.footer p { color: var(--text-faint); font-size: 0.85rem; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__copy { max-width: none; }
  .hero__visual { order: -1; }
  .hero__visual img { max-width: 340px; }
  .module-hero__grid { grid-template-columns: 1fr; gap: 24px; }
  .module-hero__visual { order: -1; }
  .gates { flex-direction: column; }
  .gate__connector { width: 2px; height: 24px; margin: 0 auto; }
  .trust__inner { flex-direction: column; }
  .contact__grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .form-row--split { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .hero { padding: 100px 0 60px; }
  .section { padding: 72px 0; }
  .page-header { padding: 100px 0 48px; }
  .module-hero { padding: 88px 0 48px; }
}