/* ============================================================
   SynthVault — Design System
   Dark editorial, musicamp.store-inspired
   ============================================================ */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #1a1a24;
  --text-primary: #f5f5f7;
  --text-secondary: #8a8a9a;
  --text-tertiary: #5a5a6a;
  --accent: #00d4aa;
  --accent-blue: #3b82f6;
  --border: #2a2a35;
  --warning: #f59e0b;
  --danger: #ef4444;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  --max-width: 1200px;
  --nav-height: 72px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

::selection { background: rgba(0, 212, 170, 0.25); color: var(--text-primary); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: var(--text-primary);
}

.display-xl { font-size: clamp(2.6rem, 6.2vw, 4.6rem); }
.display-lg { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
.display-md { font-size: clamp(1.6rem, 3vw, 2.3rem); }

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.65;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 640px;
}

.mono { font-family: var(--font-mono); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.text-accent { color: var(--accent); }
.text-blue { color: var(--accent-blue); }
.text-muted { color: var(--text-secondary); }
.text-dim { color: var(--text-tertiary); }

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: clamp(5rem, 10vw, 8.5rem) 0;
  position: relative;
}

.section--alt { background: var(--bg-secondary); }
.section--bordered { border-top: 1px solid var(--border); }

.section-head { margin-bottom: clamp(2.5rem, 5vw, 4rem); max-width: 820px; }

/* Numbered section marker */
.marker {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  margin-bottom: 1.5rem;
}
.marker__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 500;
  color: var(--text-tertiary);
  line-height: 1;
}
.marker__rule {
  flex: 0 0 48px;
  height: 1px;
  background: var(--border);
  transform: translateY(-6px);
}
.marker__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  transform: translateY(-6px);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.7rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: 3px;
  border: 1px solid transparent;
  transition: background 0.22s ease, border-color 0.22s ease, color 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--accent);
  color: #04110d;
}
.btn--primary:hover {
  background: #17e6bd;
  box-shadow: 0 0 28px rgba(0, 212, 170, 0.35);
}

.btn--outline {
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
}
.btn--outline:hover {
  background: rgba(0, 212, 170, 0.08);
  box-shadow: 0 0 20px rgba(0, 212, 170, 0.18);
}

.btn--ghost {
  color: var(--text-secondary);
  border-color: transparent;
}
.btn--ghost:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }

.btn--dark {
  background: var(--bg-tertiary);
  border-color: var(--border);
  color: var(--text-primary);
}
.btn--dark:hover { border-color: var(--accent); color: var(--accent); }

.btn--lg { padding: 1.05rem 2.2rem; font-size: 1rem; }
.btn--sm { padding: 0.55rem 1.1rem; font-size: 0.84rem; }
.btn--block { width: 100%; }

.btn .arrow { transition: transform 0.22s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* Text link with arrow */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-blue);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}
.link-arrow .arrow { transition: transform 0.22s ease; }
.link-arrow:hover { color: #6ea8ff; }
.link-arrow:hover .arrow { transform: translateX(5px); }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}
.nav.is-scrolled {
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.nav__logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.nav__logo-mark { width: 22px; height: 22px; flex: none; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  position: relative;
}
.nav__links a:hover { color: var(--text-primary); }
.nav__links a.is-active { color: var(--text-primary); }
.nav__links a.is-active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: var(--accent);
}
.nav__actions { display: flex; align-items: center; gap: 0.75rem; }

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  padding: 8px;
  z-index: 110;
}
.nav__toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav__toggle.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(10, 10, 15, 0.98);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 32px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-menu.is-open { opacity: 1; visibility: visible; }
.mobile-menu a {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 7vw, 2.4rem);
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease, color 0.2s ease;
}
.mobile-menu.is-open a { opacity: 1; transform: translateY(0); }
.mobile-menu a:hover { color: var(--accent); }
.mobile-menu a .idx { font-size: 0.8rem; color: var(--text-tertiary); }
.mobile-menu__cta { margin-top: 2rem; display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding-top: var(--nav-height);
  overflow: hidden;
}
.hero__canvas-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.9;
}
.hero__canvas-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 55% at 50% 42%, transparent 30%, var(--bg-primary) 95%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero__content { max-width: 860px; }
.hero__title { margin-bottom: 1.6rem; }
.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2.4rem; }
.hero__meta {
  margin-top: 3rem;
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.hero__meta-item { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-tertiary); }
.hero__meta-item strong { display: block; font-size: 1.35rem; color: var(--text-primary); font-weight: 600; }

.hero--page {
  min-height: 62vh;
  padding-bottom: 4rem;
}

/* Trust logos */
.trust {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 2.2rem 0;
  margin-top: 4rem;
}
.trust__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 1.4rem;
}
.trust__row {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  flex-wrap: wrap;
}
.trust__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  transition: color 0.25s ease;
}
.trust__logo:hover { color: var(--text-secondary); }
.trust__logo svg { width: 20px; height: 20px; }

/* ---------- Cards & grids ---------- */
.grid { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-tertiary);
  padding: 2rem 1.75rem;
  position: relative;
  transition: background 0.25s ease;
}
.card:hover { background: #1e1e2b; }

.card__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  display: block;
}
.card__title { font-size: 1.15rem; margin-bottom: 0.8rem; font-weight: 650; }
.card__body { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.65; }

.card--topline::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.card--topline:hover::before { transform: scaleX(1); }

.card--leftline { border-left: 2px solid transparent; transition: border-color 0.25s ease, background 0.25s ease; }
.card--leftline:hover { border-left-color: var(--accent); }

/* Icon chip */
.icon-chip {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 3px;
  margin-bottom: 1.5rem;
  color: var(--accent);
  background: rgba(0, 212, 170, 0.05);
}
.icon-chip svg { width: 20px; height: 20px; }

/* ---------- Split / asymmetric layouts ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: center;
}
.split--wide-left { grid-template-columns: 1.15fr 0.85fr; }
.split--wide-right { grid-template-columns: 0.85fr 1.15fr; }

/* Comparison panel */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
}
.compare__col { padding: 2rem; }
.compare__col + .compare__col { border-left: 1px solid var(--border); }
.compare__col--good { background: linear-gradient(180deg, rgba(0,212,170,0.06), transparent 55%); }
.compare__col--bad { background: linear-gradient(180deg, rgba(239,68,68,0.05), transparent 55%); }
.compare__head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.compare__badge {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex: none;
}
.compare__badge--x { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.4); }
.compare__badge--check { background: rgba(0,212,170,0.15); color: var(--accent); border: 1px solid rgba(0,212,170,0.4); }
.compare__list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0.45rem 0;
  border-bottom: 1px dashed rgba(42,42,53,0.7);
  display: flex;
  gap: 0.6rem;
}
.compare__list li:last-child { border-bottom: none; }
.compare__list .li-mark { color: var(--text-tertiary); font-family: var(--font-mono); }
.compare__col--good .li-mark { color: var(--accent); }

/* ---------- Workflow steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  counter-reset: step;
}
.steps::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 5%;
  right: 5%;
  height: 1px;
  background: linear-gradient(90deg, var(--border), var(--accent), var(--border));
  opacity: 0.5;
}
.step {
  padding: 0 1.25rem;
  text-align: left;
  position: relative;
}
.step__dot {
  width: 48px; height: 48px;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1.4rem;
  position: relative;
  z-index: 1;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.step:hover .step__dot { border-color: var(--accent); box-shadow: 0 0 18px rgba(0,212,170,0.25); }
.step__title { font-size: 1.05rem; font-weight: 650; margin-bottom: 0.6rem; }
.step__body { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* ---------- Layer stack ---------- */
.stack { display: flex; flex-direction: column; gap: 0.9rem; }
.stack__layer {
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  padding: 1.6rem 1.8rem;
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.5rem;
  align-items: start;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.stack__layer:hover { border-color: rgba(0,212,170,0.45); transform: translateX(6px); }
.stack__layer::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0.35;
}
.stack__tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  padding-top: 0.2rem;
}
.stack__title { font-size: 1.05rem; font-weight: 650; margin-bottom: 0.45rem; }
.stack__body { font-size: 0.9rem; color: var(--text-secondary); }

/* ---------- Testimonials ---------- */
.quote-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 2.2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.quote-card:hover { border-color: rgba(0,212,170,0.4); transform: translateY(-4px); }
.quote-card__mark {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--accent);
  opacity: 0.7;
}
.quote-card__text {
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--text-primary);
  flex: 1;
}
.quote-card__author { font-size: 0.85rem; color: var(--text-secondary); }
.quote-card__author strong { display: block; color: var(--text-primary); font-weight: 600; }

/* ---------- Stats ---------- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
}
.stat {
  padding: 2.2rem 1.8rem;
  border-left: 1px solid var(--border);
}
.stat:first-child { border-left: none; }
.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.6rem;
}
.stat__value .suffix { color: var(--accent); }
.stat__label { font-size: 0.84rem; color: var(--text-tertiary); }

/* ---------- Pricing ---------- */
.toggle-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.toggle {
  width: 52px; height: 28px;
  border-radius: 999px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  position: relative;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.toggle::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent);
  transition: transform 0.25s ease;
}
.toggle[aria-checked="true"]::after { transform: translateX(24px); }
.toggle-wrap .save-tag {
  color: var(--accent);
  font-size: 0.72rem;
  border: 1px solid rgba(0,212,170,0.4);
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  align-items: stretch;
}
.price-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 2.4rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.price-card:hover { border-color: rgba(0,212,170,0.4); transform: translateY(-4px); }
.price-card--featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(0,212,170,0.07), var(--bg-tertiary) 45%);
  box-shadow: 0 0 40px rgba(0,212,170,0.08);
}
.price-card__flag {
  position: absolute;
  top: -1px; right: 1.5rem;
  background: var(--accent);
  color: #04110d;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
}
.price-card__name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1.1rem;
}
.price-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin-bottom: 0.6rem;
}
.price-card__amount {
  font-size: clamp(2.2rem, 3.5vw, 2.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-family: var(--font-mono);
}
.price-card__per { color: var(--text-tertiary); font-size: 0.88rem; }
.price-card__desc { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.8rem; min-height: 2.7em; }
.price-card__list { flex: 1; margin-bottom: 2rem; }
.price-card__list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(42,42,53,0.6);
  display: flex;
  gap: 0.65rem;
  align-items: baseline;
}
.price-card__list li:last-child { border-bottom: none; }
.price-card__list .check { color: var(--accent); font-family: var(--font-mono); font-size: 0.8rem; flex: none; }

/* Comparison table */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); }
.spec-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  background: var(--bg-tertiary);
}
.spec-table th, .spec-table td {
  text-align: left;
  padding: 1rem 1.4rem;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
}
.spec-table thead th {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg-secondary);
}
.spec-table thead th:first-child { color: var(--text-tertiary); }
.spec-table tbody th { font-weight: 500; color: var(--text-secondary); }
.spec-table tbody td { color: var(--text-primary); }
.spec-table tbody tr:hover { background: rgba(0,212,170,0.03); }
.spec-table .col-featured { background: rgba(0,212,170,0.04); }

/* ---------- FAQ accordion ---------- */
.faq { border-top: 1px solid var(--border); }
.faq__item { border-bottom: 1px solid var(--border); }
.faq__q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 0.25rem;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.2s ease;
}
.faq__q:hover { color: var(--accent); }
.faq__icon {
  flex: none;
  width: 28px; height: 28px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: transform 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}
.faq__item.is-open .faq__icon { transform: rotate(45deg); border-color: var(--accent); color: var(--accent); }
.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq__a-inner {
  padding: 0 0.25rem 1.6rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 760px;
}

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  text-align: center;
  padding: clamp(6rem, 12vw, 9rem) 0;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  left: 50%; bottom: -40%;
  width: 900px; height: 600px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(0,212,170,0.16), transparent 65%);
  pointer-events: none;
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band__title { margin-bottom: 1.3rem; }
.cta-band__sub { margin: 0 auto 2.5rem; }

.email-capture {
  display: flex;
  gap: 0.75rem;
  max-width: 520px;
  margin: 0 auto;
}
.email-capture input {
  flex: 1;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.9rem 1.1rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.email-capture input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,212,170,0.12); }
.email-capture input::placeholder { color: var(--text-tertiary); }

/* ---------- Forms ---------- */
.form { display: flex; flex-direction: column; gap: 1.3rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.3rem; }
.form__field { display: flex; flex-direction: column; gap: 0.5rem; }
.form__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.form__label .req { color: var(--accent); }
.form__input, .form__select, .form__textarea {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  outline: none;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form__input:focus, .form__select:focus, .form__textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,212,170,0.12);
}
.form__input::placeholder, .form__textarea::placeholder { color: var(--text-tertiary); }
.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238a8a9a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form__textarea { resize: vertical; min-height: 130px; }
.form__radio-group { display: flex; gap: 1.5rem; }
.form__radio {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
  cursor: pointer;
}
.form__radio input { accent-color: var(--accent); width: 16px; height: 16px; }
.form__error { font-size: 0.8rem; color: var(--danger); display: none; }
.form__field.has-error .form__error { display: block; }
.form__field.has-error .form__input,
.form__field.has-error .form__select,
.form__field.has-error .form__textarea { border-color: var(--danger); }
.form__success {
  display: none;
  border: 1px solid rgba(0,212,170,0.4);
  background: rgba(0,212,170,0.07);
  color: var(--accent);
  padding: 1.4rem 1.6rem;
  border-radius: 3px;
  font-size: 0.95rem;
}
.form__success.is-visible { display: block; }

/* ---------- Code block ---------- */
.code-block {
  background: #0d0d14;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.code-block__bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}
.code-block__dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.code-block__dot:nth-child(1) { background: #ef4444aa; }
.code-block__dot:nth-child(2) { background: #f59e0baa; }
.code-block__dot:nth-child(3) { background: #00d4aaaa; }
.code-block__name {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-tertiary);
}
.code-block pre {
  padding: 1.4rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.7;
  overflow-x: auto;
  color: var(--text-secondary);
}
.code-block .tok-kw { color: #c792ea; }
.code-block .tok-str { color: var(--accent); }
.code-block .tok-fn { color: var(--accent-blue); }
.code-block .tok-cm { color: var(--text-tertiary); font-style: italic; }
.code-block .tok-num { color: var(--warning); }

/* ---------- Dashboard mockup ---------- */
.dash {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  font-family: var(--font-mono);
}
.dash__bar {
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-secondary);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
}
.dash__status { color: var(--accent); display: flex; align-items: center; gap: 0.45rem; }
.dash__status::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.dash__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}
.dash__cell { background: var(--bg-tertiary); padding: 1.3rem 1.2rem; }
.dash__metric { font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); margin-bottom: 0.5rem; }
.dash__value { font-size: 1.45rem; color: var(--text-primary); font-weight: 600; }
.dash__value .good { color: var(--accent); }
.dash__bars { padding: 1.3rem 1.2rem; background: var(--bg-tertiary); }
.dash__bar-row { display: grid; grid-template-columns: 110px 1fr 52px; align-items: center; gap: 0.9rem; margin-bottom: 0.75rem; font-size: 0.72rem; color: var(--text-secondary); }
.dash__bar-row:last-child { margin-bottom: 0; }
.dash__track { height: 6px; background: var(--bg-secondary); border-radius: 2px; overflow: hidden; }
.dash__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent));
  border-radius: 2px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.dash__fill.is-warn { background: linear-gradient(90deg, var(--warning), #fbbf24); }

/* ---------- Pipeline diagram ---------- */
.pipeline { display: flex; flex-direction: column; gap: 0; }
.pipeline__row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.2rem;
  border: 1px solid var(--border);
  border-bottom: none;
  background: var(--bg-tertiary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.pipeline__row:last-child { border-bottom: 1px solid var(--border); }
.pipeline__row:hover { background: #1e1e2b; border-color: rgba(0,212,170,0.35); }
.pipeline__row .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: none; box-shadow: 0 0 8px rgba(0,212,170,0.6); }
.pipeline__row .tag { margin-left: auto; font-size: 0.68rem; color: var(--text-tertiary); letter-spacing: 0.1em; text-transform: uppercase; }

/* ---------- Check list ---------- */
.check-list li {
  display: flex;
  gap: 0.8rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(42,42,53,0.6);
  color: var(--text-secondary);
  font-size: 0.95rem;
  align-items: baseline;
}
.check-list li:last-child { border-bottom: none; }
.check-list .check { color: var(--accent); font-family: var(--font-mono); flex: none; }
.check-list strong { color: var(--text-primary); font-weight: 600; }

/* ---------- Solutions blocks ---------- */
.solution-block { border-top: 1px solid var(--border); padding: clamp(3.5rem, 7vw, 5.5rem) 0; }
.solution-block:first-of-type { border-top: none; }
.solution-block__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.solution-block__num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
  display: block;
}
.solution-block__industry { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 1.2rem; }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 1.6rem; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.3rem 0.7rem;
  border-radius: 3px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.tag:hover { color: var(--accent); border-color: rgba(0,212,170,0.4); }

.pain-list li {
  display: flex;
  gap: 0.7rem;
  padding: 0.55rem 0;
  font-size: 0.93rem;
  color: var(--text-secondary);
  align-items: baseline;
}
.pain-list .x { color: var(--danger); font-family: var(--font-mono); flex: none; }
.solve-list li {
  display: flex;
  gap: 0.7rem;
  padding: 0.55rem 0;
  font-size: 0.93rem;
  color: var(--text-secondary);
  align-items: baseline;
}
.solve-list .check { color: var(--accent); font-family: var(--font-mono); flex: none; }

.subhead-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}

/* ---------- Founder placeholder ---------- */
.founder-card {
  max-width: 460px;
  margin: 0 auto;
  border: 1px dashed var(--border);
  background: var(--bg-tertiary);
  padding: 2.5rem;
  text-align: center;
}
.founder-card__avatar {
  width: 140px; height: 140px;
  margin: 0 auto 1.6rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #2a2a35, #1a1a24);
  border: 1px dashed var(--text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--text-tertiary);
  position: relative;
}
.founder-card__avatar .ph-tag {
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 0.15rem 0.5rem;
  color: var(--text-tertiary);
  white-space: nowrap;
}
.founder-card__name { font-family: var(--font-mono); font-size: 1.2rem; margin-bottom: 0.35rem; }
.founder-card__title { color: var(--accent); font-size: 0.85rem; font-family: var(--font-mono); margin-bottom: 1.2rem; }
.founder-card__bio { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 1.4rem; }
.founder-card__bio .ph { color: var(--text-tertiary); font-family: var(--font-mono); font-size: 0.82rem; }

.placeholder-box {
  border: 1px dashed var(--border);
  background: var(--bg-tertiary);
  padding: 1.6rem;
  text-align: center;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
  padding: 4.5rem 0 2rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}
.footer__brand p { color: var(--text-secondary); font-size: 0.9rem; margin: 1rem 0 1.4rem; max-width: 260px; }
.footer__social { display: flex; gap: 0.8rem; }
.footer__social a {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer__social a:hover { color: var(--accent); border-color: var(--accent); }
.footer__social svg { width: 16px; height: 16px; }
.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 1.2rem;
  font-weight: 500;
}
.footer__col li { margin-bottom: 0.65rem; }
.footer__col a { font-size: 0.9rem; color: var(--text-secondary); transition: color 0.2s ease; }
.footer__col a:hover { color: var(--accent); }
.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--text-tertiary);
}
.footer__bottom .badges { display: flex; gap: 1.2rem; font-family: var(--font-mono); font-size: 0.72rem; }

/* ---------- Cert badges ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.cert {
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  padding: 1.8rem 1.5rem;
  text-align: center;
  transition: border-color 0.25s ease;
}
.cert:hover { border-color: rgba(0,212,170,0.4); }
.cert__icon { width: 40px; height: 40px; margin: 0 auto 1rem; color: var(--accent); }
.cert__name { font-weight: 650; font-size: 0.95rem; margin-bottom: 0.35rem; }
.cert__status { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; }
.cert__status--pending { color: var(--warning); }

/* ---------- Docs teaser ---------- */
.doc-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.doc-link {
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  padding: 1.5rem 1.4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.doc-link:hover { border-color: var(--accent); background: #1e1e2b; }
.doc-link__name { font-family: var(--font-mono); font-size: 0.9rem; color: var(--text-primary); }
.doc-link__desc { font-size: 0.8rem; color: var(--text-tertiary); margin-top: 0.25rem; }
.doc-link .arrow { color: var(--accent); }

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Page transition fade ---------- */
body { animation: pageIn 0.45s ease both; }
@keyframes pageIn { from { opacity: 0; } to { opacity: 1; } }

/* ---------- Utility ---------- */
.mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; } .mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; } .mb-2 { margin-bottom: 2rem; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }
.maxw-720 { max-width: 720px; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 2.5rem 0; }
  .steps::before { display: none; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .stat { border-top: 1px solid var(--border); }
  .stat:nth-child(-n+2) { border-top: none; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .price-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .price-card--featured { transform: none; }
  .solution-block__grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  body { font-size: 16px; }
  .nav__links, .nav__actions { display: none; }
  .nav__toggle { display: flex; }
  .split, .split--wide-left, .split--wide-right { grid-template-columns: 1fr; gap: 2.5rem; }
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .compare { grid-template-columns: 1fr; }
  .compare__col + .compare__col { border-left: none; border-top: 1px solid var(--border); }
  .email-capture { flex-direction: column; }
  .form__row { grid-template-columns: 1fr; }
  .doc-links { grid-template-columns: 1fr; }
  .hero__meta { gap: 1.5rem; }
  .dash__grid { grid-template-columns: 1fr 1fr; }
  .stack__layer { grid-template-columns: 1fr; gap: 0.6rem; }
  .footer__bottom { justify-content: center; text-align: center; }
}

@media (max-width: 560px) {
  .grid--4, .cert-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; }
  .stat { border-left: none; border-top: 1px solid var(--border); }
  .stat:first-child { border-top: none; }
  .steps { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__cta .btn { width: 100%; }
  .dash__grid { grid-template-columns: 1fr; }
}