/* ==========================================================================
   CMStack - shared design system · "Vercel light"
   White canvas, Geist grotesk, zinc neutrals, a signature animated spectral
   gradient as the only color. Per-stack pages override --g1/--g2/--g3 + --accent.
   ========================================================================== */

@property --ga {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

:root {
  color-scheme: light;

  --bg: #ffffff;
  --bg-2: #fafafa; /* alternating sections */
  --bg-3: #f4f4f5; /* sunken wash */
  --fg: #0a0a0a; /* near-black text */
  --fg-2: #3f3f46; /* secondary */
  --muted: #71717a; /* body muted (zinc-500) */
  --faint: #a1a1aa; /* captions (zinc-400) */
  --line: #e4e4e7; /* hairline (zinc-200) */
  --line-2: #d4d4d8; /* stronger hairline */

  /* Signature spectral gradient (hub). Stacks override these three. */
  --g1: #2563eb;
  --g2: #7c3aed;
  --g3: #db2777;
  --accent: #6d28d9; /* solid accent for focus / small marks */
  --accent-tint: rgba(109, 40, 217, 0.08);

  --grad: linear-gradient(100deg, var(--g1), var(--g2) 45%, var(--g3));

  --font-sans: "Geist", system-ui, -apple-system, sans-serif;
  --font-display: "Geist", system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --maxw: 76rem;
  --radius: 12px;

  --shadow-sm: 0 1px 2px rgba(9, 9, 11, 0.05), 0 1px 1px rgba(9, 9, 11, 0.04);
  --shadow-md:
    0 2px 4px rgba(9, 9, 11, 0.04), 0 12px 28px -12px rgba(9, 9, 11, 0.18);
  --shadow-lg:
    0 4px 8px rgba(9, 9, 11, 0.05), 0 32px 64px -24px rgba(9, 9, 11, 0.28);
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg-2);
  font-family: var(--font-sans);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  color: var(--fg);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.02;
  text-wrap: balance;
  margin: 0;
}

p {
  margin: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
img,
canvas,
svg {
  display: block;
  max-width: 100%;
}
[hidden] {
  display: none !important;
}
::selection {
  background: var(--accent-tint);
  color: var(--fg);
}

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

/* ---------------------------------------------------------------- backdrop */

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: var(--bg);
}
body.grain::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.025;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------------------------------------------------------------- layout */

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1.75rem;
}
.rule {
  height: 1px;
  background: var(--line);
}

.section {
  padding-block: clamp(4.5rem, 9vw, 7.5rem);
  position: relative;
}
.section--panel {
  background: var(--bg-2);
  border-block: 1px solid var(--line);
}
.section--wash {
  position: relative;
}

.section-head {
  max-width: 48rem;
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem);
}
.section-head h2 {
  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  margin-bottom: 1.1rem;
}
.section-head .lede {
  color: var(--muted);
  font-size: 1.15rem;
  max-width: 42rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--muted);
  margin-bottom: 1.1rem;
}
.eyebrow-idx {
  color: transparent;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  font-weight: 600;
}

/* ---------------------------------------------------------------- surfaces / chips */

.glass {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg);
  box-shadow: var(--shadow-sm);
  transition:
    box-shadow 0.25s var(--ease),
    transform 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: var(--font-mono);
}
.chip::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--grad);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.62rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--bg);
  font-family: var(--font-mono);
}
.badge--ready {
  color: #047857;
  border-color: #6ee7b7;
  background: #ecfdf5;
}
.badge--planned {
  color: var(--muted);
}

/* ---------------------------------------------------------------- buttons */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-sans);
  font-weight: 600;
  transition:
    transform 0.18s var(--ease),
    box-shadow 0.18s var(--ease),
    background-color 0.18s var(--ease),
    border-color 0.18s var(--ease),
    opacity 0.18s var(--ease);
}
.btn:active {
  transform: scale(0.98);
}
.btn--sm {
  height: 2.3rem;
  padding-inline: 0.95rem;
  font-size: 0.875rem;
}
.btn--md {
  height: 2.75rem;
  padding-inline: 1.3rem;
  font-size: 0.9375rem;
}
.btn--lg {
  height: 3.1rem;
  padding-inline: 1.6rem;
  font-size: 1rem;
}

.btn--primary {
  background: var(--fg);
  color: var(--bg);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  background: #1f1f23;
}
.btn--ghost {
  background: var(--bg);
  color: var(--fg);
  border-color: var(--line-2);
}
.btn--ghost:hover {
  border-color: var(--fg);
  transform: translateY(-1px);
}
.btn--soft {
  background: var(--bg-3);
  color: var(--fg);
}
.btn--soft:hover {
  background: var(--line);
}

.focus-ring {
  outline: none;
}
.focus-ring:focus-visible {
  box-shadow:
    0 0 0 2px var(--bg),
    0 0 0 4px color-mix(in srgb, var(--accent) 75%, transparent);
  border-radius: 8px;
}

/* ---------------------------------------------------------------- header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 4.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-inline: max(1.75rem, calc((100% - var(--maxw)) / 2));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--line);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  color: var(--fg);
}
.logo-mark {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 7px;
  background: var(--grad);
}
.logo-mark span {
  display: none;
}
.logo-word {
}
.logo-tag {
  margin-left: 0.4rem;
  padding: 0.12rem 0.5rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-2);
  background: var(--bg-3);
  border: 1px solid var(--line);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.nav-link {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s var(--ease);
}
.nav-link:hover {
  color: var(--fg);
}
.nav-back {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
}
.nav-back:hover {
  color: var(--fg);
}
@media (max-width: 860px) {
  .site-nav .nav-link {
    display: none;
  }
}

/* ---------------------------------------------------------------- hero */

.hero {
  position: relative;
  padding-block: clamp(3.5rem, 8vw, 6rem) clamp(3.5rem, 8vw, 5.5rem);
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
}
@media (max-width: 940px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .hero-visual {
    display: none;
  }
}
.hero-content {
  max-width: 38rem;
}
.hero-title {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin: 1.4rem 0 1.4rem;
}
.hero-title-grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  max-width: 34rem;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.25rem;
}
.hero-cue {
  margin-top: 2.5rem;
  font-size: 0.8rem;
  color: var(--faint);
  font-family: var(--font-mono);
}
.hero-visual {
  position: relative;
}
/* animated spectral gradient ring on the hero terminal (signature motion) */
.hero-visual .terminal {
  position: relative;
}
.hero-visual .terminal::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 12px;
  padding: 1.5px;
  z-index: 3;
  background: conic-gradient(
    from var(--ga),
    var(--g1),
    var(--g2),
    var(--g3),
    var(--g1)
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: ga-spin 7s linear infinite;
  pointer-events: none;
}

/* animated spectral gradient border wrapper (signature) */
.grad-border {
  position: relative;
  border-radius: 16px;
}
.grad-border::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: conic-gradient(
    from var(--ga),
    var(--g1),
    var(--g2),
    var(--g3),
    var(--g1)
  );
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: ga-spin 7s linear infinite;
}
@keyframes ga-spin {
  to {
    --ga: 360deg;
  }
}

/* ---------------------------------------------------------------- grids / cards */

.feature-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
}
.module-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}
.step-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}
.stack-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
}

.card-pad {
  padding: 1.6rem;
}
.card-title {
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}
.card-body {
  color: var(--muted);
  font-size: 0.95rem;
}

.feature-card {
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-2);
}
.feature-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.feature-card:hover::after {
  transform: scaleX(1);
}

.icon-wrap {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 9px;
  margin-bottom: 1.1rem;
  display: grid;
  place-items: center;
  background: var(--bg-3);
  color: var(--fg);
  border: 1px solid var(--line);
}
.icon-wrap svg {
  width: 1.25rem;
  height: 1.25rem;
}

.step-num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.95rem;
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  background: var(--bg-3);
  border: 1px solid var(--line);
  color: transparent;
  background-image: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
}

/* stack card */
.stack-card {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: 1.6rem;
}
.stack-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-2);
}
.stack-card-top {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.stack-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 14%, transparent);
}
.stack-name {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--fg);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  margin-right: auto;
}
.stack-runtime {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
}
.stack-arrow {
  margin-top: auto;
  font-weight: 600;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------------------------------------------------------- code / terminal */

.code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: #0a0a0a;
  border-radius: 10px;
  padding: 0.9rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  overflow-x: auto;
  box-shadow: var(--shadow-md);
}
.code code {
  white-space: pre;
  color: #ededed;
}
.code-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--faint);
  margin-bottom: 0.5rem;
}
.code-copy {
  flex: none;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: transparent;
  color: #d4d4d8;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.32rem 0.62rem;
  border-radius: 6px;
  transition:
    color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}
.code-copy:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}

.terminal {
  border-radius: 12px;
  background: #0a0a0a;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.terminal-dots {
  display: flex;
  gap: 0.42rem;
}
.terminal-dots i {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}
.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #a1a1aa;
  margin-left: 0.45rem;
}
.terminal-body {
  padding: 1.05rem 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.75;
  color: #ededed;
  white-space: pre-wrap;
}
.terminal-body .pr {
  color: #818cf8;
}
.terminal-body .ok {
  color: #34d399;
}
.terminal-body .dim {
  color: #71717a;
}

/* hero floating card */
.hero-card {
  position: absolute;
  right: -6px;
  bottom: -14px;
  width: 56%;
  padding: 0.95rem 1.05rem;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
}
.hero-card-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--fg-2);
  font-weight: 500;
}
.hero-card-row + .hero-card-row {
  margin-top: 0.6rem;
}
.hero-card-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--grad);
}
.hero-card-meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--faint);
}

/* spec strip */
.spec-strip {
  margin-top: 2.75rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.spec-item {
  padding: 1.15rem 1.35rem;
  border-right: 1px solid var(--line);
}
.spec-item:last-child {
  border-right: 0;
}
.spec-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.85rem;
  line-height: 1;
  color: var(--fg);
  letter-spacing: -0.03em;
}
.spec-num em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.spec-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* statement */
.statement {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.6vw, 2.7rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--fg);
  max-width: 52rem;
}
.statement em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------------------------------------------------------------- form */

.notify {
  max-width: 36rem;
}
.notify-form {
  display: grid;
  gap: 0.9rem;
}
.field label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
  font-weight: 500;
}
.field input {
  width: 100%;
  height: 2.95rem;
  padding-inline: 0.95rem;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--line-2);
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition:
    border-color 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}
.field input::placeholder {
  color: var(--faint);
}
.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}
.field input.is-invalid {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12);
}
.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.notify-error {
  color: #dc2626;
  font-size: 0.85rem;
  min-height: 1.1rem;
}
.notify-fine {
  color: var(--faint);
  font-size: 0.8rem;
  margin-top: 0.4rem;
}
.notify-success {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1.3rem;
  border-radius: var(--radius);
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--fg);
}
.notify-success svg {
  color: #059669;
}

/* ---------------------------------------------------------------- final CTA */

.final-cta {
  text-align: center;
}
.final-cta h2 {
  font-size: clamp(2.3rem, 5.4vw, 3.75rem);
  margin-bottom: 1.3rem;
}
.final-cta .hero-cta {
  justify-content: center;
}

/* ---------------------------------------------------------------- footer */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 3.5rem 3rem;
  color: var(--muted);
  background: var(--bg-2);
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 2rem 1.5rem;
}
@media (max-width: 760px) {
  .footer-cols {
    grid-template-columns: 1fr 1fr;
  }
}
.footer-brand {
  max-width: 22rem;
}
.footer-brand .card-body {
  margin-top: 0.7rem;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--faint);
  margin: 0 0 0.9rem;
  font-weight: 500;
}
.footer-col a {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 0.22rem 0;
}
.footer-col a:hover {
  color: var(--fg);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}
.footer-meta {
  font-size: 0.85rem;
  color: var(--faint);
}
.footer-meta a:hover {
  color: var(--fg);
}
.footer-social {
  display: flex;
  gap: 0.8rem;
}
.footer-social a {
  color: var(--muted);
  transition: color 0.2s var(--ease);
}
.footer-social a:hover {
  color: var(--fg);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.3rem;
  font-size: 0.9rem;
}
.footer-links a:hover {
  color: var(--fg);
}

/* ---------------------------------------------------------------- reveal */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.7s var(--ease),
    transform 0.7s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------------- reduced motion */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .btn,
  .stack-card,
  .glass,
  .feature-card {
    transition: none !important;
  }
  .feature-card::after {
    transition: none !important;
  }
  .grad-border::before,
  .hero-visual .terminal::before {
    animation: none !important;
  }
}

/* ==========================================================================
   FINAL - variant A (Stripe-vivid) + requested changes
   ========================================================================== */

/* Hero color lives in a contained, ANIMATED gradient panel (21st.dev-style
   flowing gradient), not a full-bleed canvas glow. */
.hero-grid {
  display: none;
}
.hero-title {
  font-size: clamp(2.7rem, 6.4vw, 4.7rem);
}

/* (#2) no multicolor text in the hero headline - solid ink */
.hero .hero-title-grad {
  background: none;
  -webkit-text-fill-color: var(--fg);
  color: var(--fg);
}

.hero-visual {
  position: relative;
  border-radius: 26px;
  padding: 30px;
  min-height: 440px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--g1) 68%, #0b1020),
    var(--g2) 55%,
    var(--g3)
  );
  box-shadow: 0 50px 120px -45px color-mix(in srgb, var(--g2) 60%, transparent);
}
/* (#1) animated flowing gradient - two soft blobs drifting (transform/opacity only) */
.hero-visual::before,
.hero-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(46px);
  mix-blend-mode: screen;
  z-index: 0;
  pointer-events: none;
}
.hero-visual::before {
  width: 66%;
  height: 76%;
  left: -12%;
  top: -18%;
  background: radial-gradient(circle, var(--g1), transparent 60%);
  animation: heroA 15s ease-in-out infinite;
}
.hero-visual::after {
  width: 70%;
  height: 82%;
  right: -14%;
  bottom: -20%;
  background: radial-gradient(circle, var(--g3), transparent 60%);
  animation: heroB 19s ease-in-out infinite;
}
@keyframes heroA {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(20%, 14%) scale(1.18);
  }
}
@keyframes heroB {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-16%, -12%) scale(1.12);
  }
}

.hero-visual .terminal {
  position: relative;
  z-index: 1;
  width: 100%;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.32);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.5);
}
.hero-visual .terminal::before {
  display: none;
}
.hero-visual .terminal-bar {
  border-bottom-color: rgba(255, 255, 255, 0.22);
}
.hero-visual .terminal-title {
  color: rgba(255, 255, 255, 0.8);
}
.hero-visual .terminal-body {
  color: #ffffff;
}
.hero-visual .terminal-body .pr {
  color: #bfdbfe;
}
.hero-visual .terminal-body .ok {
  color: #a7f3d0;
}
.hero-visual .terminal-body .dim {
  color: rgba(255, 255, 255, 0.7);
}
.hero-visual .hero-card {
  z-index: 2;
  right: 22px;
  bottom: 22px;
  width: 60%;
  background: rgba(255, 255, 255, 0.94);
  border-color: rgba(255, 255, 255, 0.7);
}

/* (#6) early-access form centered, not left */
#early-access .section-head {
  margin-inline: auto;
  text-align: center;
}
#early-access .notify {
  margin-inline: auto;
}

/* (#3) subtle parallax between sections (scroll-driven; modern browsers only) */
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .hero-visual {
      animation: heroParallax linear both;
      animation-timeline: view();
      animation-range: exit 0% exit 100%;
    }
    @keyframes heroParallax {
      to {
        transform: translateY(-54px);
      }
    }
    .section--panel > .container,
    .section--wash > .container {
      animation: secParallax linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 48%;
    }
    @keyframes secParallax {
      from {
        transform: translateY(38px);
      }
      to {
        transform: translateY(0);
      }
    }
  }
}
@media (prefers-reduced-motion: reduce) {
  .hero-visual::before,
  .hero-visual::after {
    animation: none !important;
  }
}

/* ==========================================================================
   REVISION 2 - drop the hero gradient panel; particle hero; no gradient text
   ========================================================================== */

/* hero becomes a single column with the particle canvas behind it */
.hero {
  min-height: 68vh;
  display: flex;
  align-items: center;
}
.hero-layout {
  display: block;
}
.hero-visual {
  display: none !important;
} /* remove the colorful panel/card */
/* re-enable canvas as a Stripe-style animated mesh gradient: the JS renders a
   tiny low-res buffer; the CSS blur + scale upsell it into smooth liquid colour.
   Slight opacity keeps dark hero text readable over the colour. */
/* Stripe-style: white hero, silk ribbon only in the top-right; the shader
   handles its own transparency, so no blur/opacity wash here. */
.hero-grid {
  display: block !important;
  filter: blur(1px) saturate(1.1);
}
.hero-content {
  max-width: 46rem;
}

/* no gradient TEXT anywhere - make all clipped-gradient text solid */
.hero-title-grad,
.final-cta .hero-title-grad,
.eyebrow-idx,
.spec-num em,
.statement em,
.stack-arrow,
.grad-text {
  background: none !important;
  background-image: none !important;
  -webkit-background-clip: border-box !important;
  background-clip: border-box !important;
  -webkit-text-fill-color: currentColor !important;
}
.hero-title-grad,
.final-cta .hero-title-grad {
  color: var(--fg) !important;
}
.eyebrow-idx {
  color: var(--muted) !important;
}
.spec-num em,
.statement em {
  color: var(--accent) !important;
}
.stack-arrow {
  color: var(--accent) !important;
}
.step-num {
  background-image: none !important;
  background-color: var(--bg-3) !important;
  -webkit-background-clip: border-box !important;
  background-clip: border-box !important;
  color: var(--accent) !important;
  -webkit-text-fill-color: var(--accent) !important;
}

/* ==========================================================================
   Hero typewriter + luxury logo mark
   ========================================================================== */
.type-word {
  color: var(--fg);
}
.type-caret {
  display: inline-block;
  width: 0.06em;
  height: 0.84em;
  border-radius: 1px;
  background: var(--fg);
  margin-left: 0.05em;
  vertical-align: -0.04em;
  animation: caretBlink 1.05s steps(1) infinite;
}
@keyframes caretBlink {
  50% {
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .type-caret {
    animation: none;
  }
}

/* luxury layered-stack mark (mono ink tile + white layers) */
.logo-mark {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%230a0a0a'/%3E%3Cpath d='M16 7 L25 12 L16 17 L7 12 Z' fill='%23ffffff'/%3E%3Cpath d='M7 15.5 L16 20.5 L25 15.5' fill='none' stroke='%23ffffff' stroke-width='1.7' stroke-linejoin='round' stroke-linecap='round' opacity='0.7'/%3E%3Cpath d='M7 19.5 L16 24.5 L25 19.5' fill='none' stroke='%23ffffff' stroke-width='1.7' stroke-linejoin='round' stroke-linecap='round' opacity='0.4'/%3E%3C/svg%3E")
    center / cover no-repeat !important;
  border-radius: 7px;
}