/* ==========================================================================
   DuPDF -- dupdf.com
   Design system + components
   ========================================================================== */

/* Self-hosted variable fonts (OFL). Latin subset only. No Google runtime. */
@font-face {
  font-family: "Playfair Display";
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url("/fonts/playfair-display-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Playfair Display";
  font-style: italic;
  font-weight: 400 900;
  font-display: swap;
  src: url("/fonts/playfair-display-latin-wght-italic.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/fonts/inter-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url("/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- 1. Tokens ---------- */

:root {
  /* Surfaces */
  --ink-900: #050507;
  --ink-850: #08080c;
  --ink-800: #0b0b11;
  --ink-750: #0f0f16;
  --ink-700: #14141d;
  --ink-600: #1c1c26;

  /* Hairlines */
  --line: rgba(255, 255, 255, 0.085);
  --line-2: rgba(255, 255, 255, 0.14);
  --line-3: rgba(255, 255, 255, 0.24);

  /* Type */
  --bone: #f4efe8;
  --text: #d8d3cc;
  --muted: #948f99;
  --faint: #66626f;

  /* Brand � oxblood crimson from the D mark */
  --crimson: #b81c26;
  --crimson-lit: #e33a44;
  --crimson-deep: #6c1015;
  --crimson-ink: #2a080b;

  /* Luxury gold, from the seal + Trends card */
  --gold: #c9a227;
  --gold-lit: #ecd598;

  /* Quantum spectrum � reserved for Double PQC Shield */
  --violet: #8b5cf6;
  --violet-deep: #4c2a9e;
  --cyan: #22d3ee;
  --quantum-ink: #070a1c;
  --quantum-ink-2: #0c1030;

  /* Signals */
  --live: #3ddc84;

  /* Fonts */
  --f-display: "Playfair Display", "Georgia", "Times New Roman", serif;
  --f-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Layout */
  --shell: 1240px;
  --shell-narrow: 820px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --nav-h: 72px;

  /* Radii */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* Shadows */
  --shadow-lift: 0 24px 60px -20px rgba(0, 0, 0, 0.9);
  --shadow-poster: 0 40px 90px -30px rgba(0, 0, 0, 0.95);
  --glow-crimson: 0 0 60px -12px rgba(184, 28, 38, 0.55);
  --glow-crimson-hover: 0 0 80px -8px rgba(227, 58, 68, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  --glow-crimson-text: 0 0 16px rgba(227, 58, 68, 0.5), 0 0 36px rgba(227, 58, 68, 0.28);
  --glow-crimson-text-quiet: 0 0 10px rgba(227, 58, 68, 0.38), 0 0 22px rgba(227, 58, 68, 0.18);
  --glow-quantum: 0 0 70px -14px rgba(139, 92, 246, 0.6);
}

/* ---------- 2. Reset & base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
}

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--text);
  font-family: var(--f-sans);
  font-size: 1rem;
  line-height: 1.65;
  font-feature-settings: "kern" 1, "liga" 1, "cv11" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

img,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--bone);
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

::selection {
  background: var(--crimson);
  color: #fff;
}

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

/* ---------- 3. Type scale ---------- */

.d1 {
  font-family: var(--f-display);
  font-size: clamp(2.9rem, 7.6vw, 6.2rem);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.d2 {
  font-family: var(--f-display);
  font-size: clamp(2.2rem, 5.2vw, 4rem);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.d3 {
  font-family: var(--f-display);
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.h4 {
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.lede {
  font-size: clamp(1.05rem, 1.55vw, 1.28rem);
  line-height: 1.6;
  color: var(--muted);
  max-width: 62ch;
}

.body-lg {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--muted);
}

.small {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted);
}

.tiny {
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--faint);
}

.serif-em {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 400;
}

.crimson-em {
  color: var(--crimson-lit);
}

.gold-em {
  color: var(--gold-lit);
}

.quantum-em {
  background: linear-gradient(100deg, var(--violet) 10%, var(--cyan) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Eyebrow / kicker */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

.eyebrow--quantum {
  color: var(--cyan);
}

.eyebrow--quantum::before {
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.eyebrow--plain::before {
  display: none;
}

/* ---------- 4. Layout ---------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.shell-narrow {
  width: 100%;
  max-width: var(--shell-narrow);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: clamp(4rem, 8vw, 7.25rem);
}

.section--tight {
  padding-block: clamp(3rem, 6vw, 5rem);
}

.section-head {
  max-width: 68ch;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-head > * + * {
  margin-top: 1.15rem;
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head--center .lede {
  margin-inline: auto;
}

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, transparent, var(--line-2) 18%, var(--line-2) 82%, transparent);
}

.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .g-3, .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Pricing: three plan cards stack cleanly instead of a half-width leftover. */
#get .card {
  display: flex;
  flex-direction: column;
}

#get .card .btn-row {
  margin-top: auto;
}

@media (max-width: 1100px) {
  #get .g-3 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 600px) {
  .g-2, .g-3, .g-4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 5. Atmosphere ---------- */

/* Film grain */
.grain {
  position: fixed;
  inset: 0;
  z-index: 900;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Vignette */
.vignette {
  position: fixed;
  inset: 0;
  z-index: 890;
  pointer-events: none;
  background: radial-gradient(120% 90% at 50% 40%, transparent 45%, rgba(0, 0, 0, 0.55) 100%);
}

/* Drifting aurora field */
.aurora {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.aurora span {
  position: absolute;
  display: block;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}

.aurora .a1 {
  width: 46vw;
  height: 46vw;
  min-width: 340px;
  min-height: 340px;
  left: -12vw;
  top: -14vw;
  background: radial-gradient(circle, rgba(184, 28, 38, 0.55), transparent 66%);
  animation: drift-a 26s var(--ease-in-out) infinite alternate;
}

.aurora .a2 {
  width: 40vw;
  height: 40vw;
  min-width: 300px;
  min-height: 300px;
  right: -10vw;
  top: 4vw;
  background: radial-gradient(circle, rgba(76, 42, 158, 0.5), transparent 66%);
  animation: drift-b 32s var(--ease-in-out) infinite alternate;
}

.aurora .a3 {
  width: 34vw;
  height: 34vw;
  min-width: 260px;
  min-height: 260px;
  left: 38%;
  bottom: -16vw;
  background: radial-gradient(circle, rgba(201, 162, 39, 0.22), transparent 66%);
  animation: drift-c 38s var(--ease-in-out) infinite alternate;
}

@keyframes drift-a {
  to { transform: translate3d(8vw, 6vw, 0) scale(1.15); }
}
@keyframes drift-b {
  to { transform: translate3d(-7vw, 9vw, 0) scale(1.2); }
}
@keyframes drift-c {
  to { transform: translate3d(-6vw, -8vw, 0) scale(1.1); }
}

/* Mesh grid backdrop */
.mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(90% 70% at 50% 30%, #000 10%, transparent 78%);
  -webkit-mask-image: radial-gradient(90% 70% at 50% 30%, #000 10%, transparent 78%);
}

.mesh--quantum {
  background-image:
    linear-gradient(to right, rgba(139, 92, 246, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 211, 238, 0.09) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* Content above atmosphere */
.layer {
  position: relative;
  z-index: 1;
}

/* Horizon glow line */
.horizon {
  position: relative;
}

.horizon::after {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184, 28, 38, 0.6), rgba(201, 162, 39, 0.35), transparent);
}

/* ---------- 6. Buttons ---------- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--bone);
  --btn-bd: var(--line-2);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  border: 1px solid var(--btn-bd);
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 0.9375rem;
  font-weight: 550;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: visible;
  isolation: isolate;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease), background-color 0.35s var(--ease), color 0.35s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn svg {
  flex: none;
  transition: transform 0.35s var(--ease);
}

.btn:hover svg.arr {
  transform: translateX(3px);
}

.btn--primary {
  --btn-bd: transparent;
  color: #fff;
  background: linear-gradient(140deg, var(--crimson-lit), var(--crimson) 45%, var(--crimson-deep));
  box-shadow: var(--glow-crimson), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.btn--primary:hover {
  box-shadow: var(--glow-crimson-hover);
}

.btn--quantum {
  --btn-bd: transparent;
  color: #060815;
  font-weight: 650;
  background: linear-gradient(110deg, var(--cyan), var(--violet));
  box-shadow: var(--glow-quantum), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.btn--quantum:hover {
  box-shadow: 0 0 90px -10px rgba(139, 92, 246, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn--ghost:hover {
  border-color: var(--line-3);
  background: rgba(255, 255, 255, 0.07);
}

.btn--lg {
  padding: 1.05rem 2rem;
  font-size: 1rem;
}

.btn--sm {
  padding: 0.6rem 1.1rem;
  font-size: 0.8125rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

.btn-row--center {
  justify-content: center;
}

/* Text link with animated underline */
.link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--bone);
  font-weight: 550;
  font-size: 0.9375rem;
  padding-bottom: 2px;
  background-image: linear-gradient(90deg, var(--crimson-lit), var(--gold));
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.4s var(--ease), color 0.3s var(--ease);
}

.link:hover {
  background-size: 100% 1px;
}

.link svg {
  transition: transform 0.35s var(--ease);
}

.link:hover svg {
  transform: translate(3px, -3px);
}

.link--quantum {
  background-image: linear-gradient(90deg, var(--cyan), var(--violet));
}

/* ---------- 7. Navigation ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 800;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease),
    backdrop-filter 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.is-stuck {
  background: rgba(5, 5, 7, 0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom-color: var(--line);
}

.nav__inner {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  flex: none;
  margin-right: auto;
}

.brand__seal {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--line-2), 0 6px 18px -6px rgba(0, 0, 0, 0.9);
}

.nav .brand__seal {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.brand__word {
  font-family: var(--f-display);
  font-size: 1.32rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--crimson-lit);
  line-height: 1;
}

.nav .brand__word {
  font-size: 1.55rem;
  transition: text-shadow 0.35s var(--ease);
}

.nav .brand:hover .brand__word,
.nav .brand:focus-visible .brand__word {
  text-shadow: var(--glow-crimson-text-quiet);
}

.is-home .nav .brand__word {
  font-size: clamp(1.85rem, 3.4vw, 2.45rem);
}

.is-home .nav .brand:hover .brand__word,
.is-home .nav .brand:focus-visible .brand__word {
  text-shadow: var(--glow-crimson-text);
}

.brand__word span {
  color: var(--crimson-lit);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  position: relative;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.nav__link:hover {
  color: var(--bone);
  background: rgba(255, 255, 255, 0.05);
}

.nav__link[aria-current="page"] {
  color: var(--bone);
}

.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 1px;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--crimson-lit), var(--gold));
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex: none;
}

.nav__burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
}

.nav__burger span {
  display: block;
  position: relative;
  width: 17px;
  height: 1.5px;
  background: var(--bone);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), background-color 0.2s;
}

.nav__burger span::before,
.nav__burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 17px;
  height: 1.5px;
  background: var(--bone);
  border-radius: 2px;
  transition: transform 0.35s var(--ease);
}

.nav__burger span::before { top: -5.5px; }
.nav__burger span::after { top: 5.5px; }

.nav__burger[aria-expanded="true"] span { background: transparent; }
.nav__burger[aria-expanded="true"] span::before { transform: translateY(5.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span::after { transform: translateY(-5.5px) rotate(-45deg); }

@media (max-width: 1020px) {
  .nav__links,
  .nav__cta .btn--ghost {
    display: none;
  }
  .nav__burger {
    display: flex;
  }
}

/* Mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 850;
  display: grid;
  grid-template-rows: var(--nav-h) 1fr;
  background: rgba(5, 5, 7, 0.97);
  backdrop-filter: blur(26px);
  -webkit-backdrop-filter: blur(26px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}

.drawer.is-open {
  opacity: 1;
  visibility: visible;
}

.drawer__body {
  overflow-y: auto;
  padding: 1.5rem var(--gutter) 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.drawer__link {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--f-display);
  font-size: 1.75rem;
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--bone);
  opacity: 0;
  transform: translateY(14px);
}

.drawer.is-open .drawer__link {
  animation: drawer-in 0.55s var(--ease) forwards;
}

.drawer__link i {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  font-style: normal;
  letter-spacing: 0.1em;
  color: var(--faint);
}

@keyframes drawer-in {
  to { opacity: 1; transform: none; }
}

.drawer__foot {
  margin-top: 2rem;
  display: grid;
  gap: 0.75rem;
}

/* ---------- 8. Cards & surfaces ---------- */

.card {
  position: relative;
  padding: clamp(1.5rem, 2.4vw, 2.1rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease),
    box-shadow 0.5s var(--ease);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(184, 28, 38, 0.65), transparent 40%, transparent 60%, rgba(201, 162, 39, 0.4));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-lift);
}

.card:hover::before {
  opacity: 1;
}

.card--quantum::before {
  background: linear-gradient(140deg, var(--violet), transparent 42%, transparent 58%, var(--cyan));
}

.card--gold::before {
  background: linear-gradient(140deg, var(--gold-lit), transparent 42%, transparent 58%, var(--gold));
}

.card--flat:hover {
  transform: none;
}

.card__num {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--faint);
  margin-bottom: 1.1rem;
  display: block;
}

.card__title {
  font-size: 1.1875rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--bone);
  margin-bottom: 0.6rem;
}

.card__title--sm {
  font-size: 1rem;
}

.card__text {
  font-size: 0.9375rem;
  line-height: 1.68;
  color: var(--muted);
}

.card > * + .card__text {
  margin-top: 0.6rem;
}

/* Icon chip */
.chip-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  border: 1px solid var(--line-2);
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  color: var(--crimson-lit);
  margin-bottom: 1.25rem;
}

.chip-icon svg {
  width: 24px;
  height: 24px;
}

.chip-icon--quantum {
  color: var(--cyan);
  border-color: rgba(139, 92, 246, 0.4);
  background: linear-gradient(150deg, rgba(139, 92, 246, 0.22), rgba(34, 211, 238, 0.08));
}

.chip-icon--gold {
  color: var(--gold-lit);
}

/* Corner brackets � dystopian detail */
.bracket {
  position: relative;
}

.bracket::before,
.bracket::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--line-3);
  pointer-events: none;
}

.bracket::before {
  top: 10px;
  left: 10px;
  border-right: 0;
  border-bottom: 0;
}

.bracket::after {
  bottom: 10px;
  right: 10px;
  border-left: 0;
  border-top: 0;
}

/* Pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.pill__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 10px var(--live);
  flex: none;
}

.pill__dot--gold {
  background: var(--gold);
  box-shadow: 0 0 10px var(--gold);
}

.pill__dot--cyan {
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-family: var(--f-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.badge--beta {
  color: var(--gold-lit);
  border: 1px solid rgba(201, 162, 39, 0.35);
  background: rgba(201, 162, 39, 0.1);
}

.badge--free {
  color: var(--live);
  border: 1px solid rgba(61, 220, 132, 0.3);
  background: rgba(61, 220, 132, 0.09);
}

.badge--pro {
  color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, 0.3);
  background: rgba(34, 211, 238, 0.09);
}

.badge--gold {
  color: var(--gold-lit);
  border: 1px solid rgba(201, 162, 39, 0.35);
  background: rgba(201, 162, 39, 0.1);
}

/* ---------- 9. Hero ---------- */

.hero {
  position: relative;
  padding-top: calc(var(--nav-h) + clamp(3rem, 8vw, 6rem));
  padding-bottom: clamp(3.5rem, 8vw, 6.5rem);
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 3rem;
  }
}

.hero__copy > * + * {
  margin-top: 1.5rem;
}

.hero__title {
  max-width: 15ch;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem 2.2rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
}

.hero__meta div {
  min-width: 90px;
}

.hero__meta dt {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.3rem;
}

.hero__meta dd {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 550;
  color: var(--bone);
}

/* Hero collage */
.collage {
  position: relative;
  aspect-ratio: 1 / 1.16;
  min-height: 460px;
  margin: 0;
}

.collage__poster {
  position: absolute;
  margin: 0;
  aspect-ratio: 620 / 1343;
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-poster);
  border: 1px solid var(--line-2);
  background: var(--ink-800);
}

.collage__poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collage__main {
  width: 46%;
  left: 2%;
  top: 0;
  z-index: 2;
  animation: float-a 9s var(--ease-in-out) infinite alternate;
}

.collage__side {
  width: 41%;
  right: 1%;
  top: 13%;
  z-index: 1;
  opacity: 0.92;
  animation: float-b 11s var(--ease-in-out) infinite alternate;
}

.collage__chip {
  position: absolute;
  z-index: 3;
  left: 0;
  bottom: 0;
  width: 66%;
  padding: 0.9rem 1.1rem;
  border-radius: 18px;
  border: 1px solid rgba(139, 92, 246, 0.35);
  background: linear-gradient(140deg, rgba(12, 16, 48, 0.92), rgba(7, 10, 28, 0.92));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.95), 0 0 50px -20px rgba(139, 92, 246, 0.6);
  animation: float-c 8s var(--ease-in-out) infinite alternate;
}

.collage__chip .pqc-mini {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.collage__chip strong {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--f-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.collage__chip em {
  display: block;
  margin-top: 0.1rem;
  font-style: normal;
  font-size: 0.75rem;
  color: var(--muted);
}

@keyframes float-a { to { transform: translateY(-14px); } }
@keyframes float-b { to { transform: translateY(16px); } }
@keyframes float-c { to { transform: translateY(-9px); } }

@media (max-width: 560px) {
  .collage { aspect-ratio: 1 / 1.3; min-height: 420px; }
  .collage__main { width: 52%; }
  .collage__side { width: 45%; }
  .collage__chip { width: 88%; }
}

/* ---------- 10. Marquee ---------- */

.marquee {
  position: relative;
  overflow: hidden;
  padding-block: 1.1rem;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 44s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__group {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding-right: 3rem;
  flex: none;
}

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.marquee__item b {
  color: var(--bone);
  font-weight: 500;
}

.marquee__sep {
  color: var(--crimson);
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- 11. Stats ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent);
}

.stats--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stats > div {
  padding: clamp(1.4rem, 2.6vw, 2.1rem);
  border-right: 1px solid var(--line);
}

.stats > div:last-child {
  border-right: 0;
}

.stat__val {
  font-family: var(--f-display);
  font-size: clamp(1.85rem, 3.4vw, 2.75rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--bone);
  margin-bottom: 0.55rem;
}

.stat__key {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.4rem;
}

.stat__note {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 860px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats > div:nth-child(2n) { border-right: 0; }
  .stats > div:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 460px) {
  .stats { grid-template-columns: minmax(0, 1fr); }
  .stats > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .stats > div:last-child { border-bottom: 0; }
}

/* ---------- 12. Split feature blocks ---------- */

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.split--reverse .split__media {
  order: -1;
}

@media (max-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
  }
  .split--reverse .split__media {
    order: 0;
  }
}

.split__copy > * + * {
  margin-top: 1.25rem;
}

.split__media {
  position: relative;
}

.frame {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-2);
  background: var(--ink-800);
  box-shadow: var(--shadow-poster);
}

.frame img {
  width: 100%;
  display: block;
}

.frame--glow::after {
  content: "";
  position: absolute;
  inset: -30%;
  z-index: -1;
  background: radial-gradient(circle, rgba(184, 28, 38, 0.35), transparent 62%);
  filter: blur(60px);
}

.frame--quantum {
  border-color: rgba(139, 92, 246, 0.35);
}

.frame--quantum::after {
  content: "";
  position: absolute;
  inset: -30%;
  z-index: -1;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.45), transparent 62%);
  filter: blur(60px);
}

/* Feature bullet list */
.ticks {
  display: grid;
  gap: 0.85rem;
}

.ticks li {
  position: relative;
  padding-left: 1.9rem;
  font-size: 0.9375rem;
  line-height: 1.62;
  color: var(--muted);
}

.ticks li strong {
  color: var(--bone);
  font-weight: 600;
}

.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 11px;
  height: 11px;
  border-radius: 3px;
  background: linear-gradient(140deg, var(--crimson-lit), var(--crimson-deep));
  box-shadow: 0 0 14px -2px rgba(227, 58, 68, 0.7);
}

.ticks--quantum li::before {
  background: linear-gradient(140deg, var(--cyan), var(--violet));
  box-shadow: 0 0 14px -2px rgba(139, 92, 246, 0.8);
}

.ticks--gold li::before {
  background: linear-gradient(140deg, var(--gold-lit), var(--gold));
  box-shadow: 0 0 14px -2px rgba(201, 162, 39, 0.6);
}

/* ---------- 13. Quantum section ---------- */

.quantum {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(90% 70% at 20% 10%, rgba(76, 42, 158, 0.35), transparent 60%),
    radial-gradient(70% 60% at 85% 80%, rgba(34, 211, 238, 0.16), transparent 60%),
    linear-gradient(180deg, var(--quantum-ink), #05070f);
  border-block: 1px solid rgba(139, 92, 246, 0.25);
}

.quantum::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(139, 92, 246, 0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 211, 238, 0.07) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(80% 70% at 50% 40%, #000, transparent 80%);
  -webkit-mask-image: radial-gradient(80% 70% at 50% 40%, #000, transparent 80%);
  pointer-events: none;
}

/* Key chain diagram */
.chain {
  display: grid;
  gap: 1rem;
}

.chain__node {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.1rem;
  padding: 1.15rem 1.35rem;
  border: 1px solid rgba(139, 92, 246, 0.28);
  border-radius: 18px;
  background: linear-gradient(140deg, rgba(15, 19, 54, 0.9), rgba(8, 10, 30, 0.75));
  transition: border-color 0.4s var(--ease), box-shadow 0.4s var(--ease), transform 0.4s var(--ease);
}

.chain__node:hover {
  transform: translateX(4px);
  border-color: rgba(34, 211, 238, 0.5);
  box-shadow: 0 0 44px -18px rgba(139, 92, 246, 0.9);
}

.chain__node + .chain__node::before {
  content: "";
  position: absolute;
  left: 39px;
  top: -1rem;
  width: 1px;
  height: 1rem;
  background: linear-gradient(180deg, rgba(139, 92, 246, 0.15), rgba(34, 211, 238, 0.75));
}

.chain__badge {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--f-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(140deg, var(--violet), var(--cyan));
  box-shadow: 0 0 22px -6px rgba(139, 92, 246, 0.9);
}

.chain__label {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bone);
}

.chain__spec {
  margin-top: 0.28rem;
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.5;
}

.chain__spec code {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  color: var(--cyan);
}

.chain__state {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--live);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

@media (max-width: 560px) {
  .chain__node {
    grid-template-columns: 34px minmax(0, 1fr);
  }
  .chain__state {
    grid-column: 2;
  }
}

/* Daughter key grid */
.daughters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 1rem;
  padding: 1.15rem 1.35rem;
  border: 1px dashed rgba(34, 211, 238, 0.3);
  border-radius: 18px;
  background: rgba(8, 12, 34, 0.5);
}

.daughters li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8125rem;
  color: var(--text);
}

.daughters li svg {
  flex: none;
  width: 15px;
  height: 15px;
  color: var(--cyan);
}

@media (max-width: 480px) {
  .daughters { grid-template-columns: minmax(0, 1fr); }
}

/* Threat model table */
.tbl-wrap {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  overflow-x: auto;
  background: rgba(255, 255, 255, 0.02);
}

table.tbl {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table.tbl th,
table.tbl td {
  text-align: left;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

table.tbl thead th {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  background: rgba(255, 255, 255, 0.025);
}

table.tbl tbody tr:last-child td {
  border-bottom: 0;
}

table.tbl td:first-child {
  color: var(--bone);
  font-weight: 550;
}

table.tbl td.ok {
  color: var(--live);
  font-family: var(--f-mono);
  font-size: 0.8125rem;
}

/* ---------- 14. Showcase scroller ---------- */

.showcase {
  position: relative;
}

.showcase + .showcase {
  padding-top: 0;
}

.showcase__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.25rem;
}

.showcase__nav {
  display: flex;
  gap: 0.5rem;
  flex: none;
}

.showcase__btn {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  color: var(--bone);
  background: rgba(255, 255, 255, 0.03);
  transition: background-color 0.3s var(--ease), border-color 0.3s var(--ease), opacity 0.3s;
}

.showcase__btn:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--line-3);
}

.showcase__btn[disabled] {
  opacity: 0.3;
  cursor: not-allowed;
}

.rail {
  display: flex;
  gap: clamp(0.9rem, 1.8vw, 1.4rem);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding-bottom: 1.25rem;
  margin-inline: calc(var(--gutter) * -1);
  padding-inline: var(--gutter);
  scrollbar-width: thin;
  scrollbar-color: var(--ink-600) transparent;
}

.rail::-webkit-scrollbar {
  height: 6px;
}

.rail::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 99px;
}

.rail::-webkit-scrollbar-thumb {
  background: var(--ink-600);
  border-radius: 99px;
}

.rail::-webkit-scrollbar-thumb:hover {
  background: var(--crimson-deep);
}

.poster {
  flex: none;
  width: clamp(230px, 26vw, 300px);
  scroll-snap-align: start;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
  box-shadow: var(--shadow-lift);
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease);
}

.poster:hover {
  transform: translateY(-6px);
  border-color: var(--line-3);
}

.poster img {
  width: 100%;
  aspect-ratio: 9 / 19.5;
  object-fit: cover;
  object-position: top center;
}

.poster--tablet {
  width: clamp(280px, 36vw, 440px);
}

.poster--tablet img {
  aspect-ratio: 900 / 1202;
}

.poster__cap {
  padding: 0.95rem 1.1rem 1.1rem;
  border-top: 1px solid var(--line);
}

.poster__cap b {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--bone);
  letter-spacing: -0.01em;
}

.poster__cap span {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.8125rem;
  color: var(--muted);
}

/* ---------- 15. Tools grid ---------- */

.tool {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.022);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease),
    background-color 0.4s var(--ease);
}

.tool:hover {
  transform: translateY(-3px);
  border-color: var(--line-2);
  background: rgba(255, 255, 255, 0.05);
}

.tool__ico {
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 12px;
  overflow: hidden;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--crimson-lit);
}

.tool__ico img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tool__ico svg {
  width: 20px;
  height: 20px;
}

.tool b {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--bone);
  letter-spacing: -0.01em;
}

.tool span {
  display: block;
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.45;
}

/* ---------- 16. Accordion ---------- */

.acc {
  border-top: 1px solid var(--line);
}

.acc__item {
  border-bottom: 1px solid var(--line);
}

.acc__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 0;
  text-align: left;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  font-weight: 550;
  letter-spacing: -0.015em;
  color: var(--bone);
  transition: color 0.3s var(--ease);
}

.acc__btn:hover {
  color: var(--crimson-lit);
}

.acc__sign {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
}

.acc__sign::before,
.acc__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.4s var(--ease), opacity 0.3s;
}

.acc__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.acc__btn[aria-expanded="true"] .acc__sign::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

.acc__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.45s var(--ease);
}

.acc__panel[data-open="true"] {
  grid-template-rows: 1fr;
}

.acc__panel > div {
  overflow: hidden;
}

.acc__panel p {
  padding-bottom: 1.4rem;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--muted);
  max-width: 72ch;
}

.acc__panel p + p {
  padding-top: 0;
  margin-top: -0.5rem;
}

/* ---------- 17. Tabs ---------- */

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  padding: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
  width: fit-content;
  max-width: 100%;
}

.tab {
  padding: 0.6rem 1.15rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 550;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.tab:hover {
  color: var(--bone);
}

.tab[aria-selected="true"] {
  color: #fff;
  background: linear-gradient(140deg, var(--crimson-lit), var(--crimson-deep));
  box-shadow: 0 0 30px -10px rgba(227, 58, 68, 0.8);
}

.tabpanel[hidden] {
  display: none;
}

/* ---------- 18. CTA band ---------- */

.cta {
  position: relative;
  overflow: hidden;
  padding: clamp(2.5rem, 6vw, 5rem);
  border: 1px solid var(--line-2);
  border-radius: var(--r-xl);
  text-align: center;
  background:
    radial-gradient(80% 120% at 50% 0%, rgba(184, 28, 38, 0.28), transparent 62%),
    linear-gradient(180deg, var(--ink-750), var(--ink-850));
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(70% 70% at 50% 0%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 0%, #000, transparent 75%);
  pointer-events: none;
}

.cta > * {
  position: relative;
}

.cta > * + * {
  margin-top: 1.35rem;
}

.store-note {
  max-width: 46ch;
  margin-inline: auto;
}

.card .store-note {
  margin-inline: 0;
  margin-top: 0.85rem;
}

.cta .btn-row {
  justify-content: center;
}

.cta__seal {
  width: 72px;
  height: 72px;
  margin-inline: auto;
  border-radius: 18px;
  box-shadow: 0 0 0 1px var(--line-2), 0 20px 50px -20px rgba(0, 0, 0, 0.95);
}

/* ---------- 19. Page header (interior pages) ---------- */

.pagehead {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--nav-h) + clamp(3rem, 7vw, 5.5rem));
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
  border-bottom: 1px solid var(--line);
}

.pagehead--quantum {
  background:
    radial-gradient(80% 90% at 25% 0%, rgba(76, 42, 158, 0.4), transparent 60%),
    radial-gradient(60% 80% at 90% 30%, rgba(34, 211, 238, 0.14), transparent 60%),
    linear-gradient(180deg, var(--quantum-ink), var(--ink-900));
  border-bottom-color: rgba(139, 92, 246, 0.28);
}

.pagehead__inner > * + * {
  margin-top: 1.35rem;
}

.crumbs {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

.crumbs a:hover {
  color: var(--bone);
}

.crumbs span {
  color: var(--line-3);
}

/* ---------- 20. Prose (legal / manual) ---------- */

.doc {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

@media (max-width: 900px) {
  .doc {
    grid-template-columns: minmax(0, 1fr);
  }
}

.toc {
  position: sticky;
  top: calc(var(--nav-h) + 28px);
  max-height: calc(100vh - var(--nav-h) - 60px);
  overflow-y: auto;
  padding-right: 0.5rem;
  border-left: 1px solid var(--line);
}

@media (max-width: 900px) {
  .toc {
    position: relative;
    top: 0;
    max-height: 320px;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
  }
}

.toc__title {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  padding: 0 0 0.9rem 1.1rem;
}

@media (max-width: 900px) {
  .toc__title { padding-left: 0; }
}

.toc a {
  display: block;
  padding: 0.42rem 0 0.42rem 1.1rem;
  margin-left: -1px;
  border-left: 1px solid transparent;
  font-size: 0.8438rem;
  line-height: 1.45;
  color: var(--muted);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

@media (max-width: 900px) {
  .toc a { padding-left: 0.6rem; }
}

.toc a:hover {
  color: var(--bone);
}

.toc a.is-active {
  color: var(--bone);
  border-left-color: var(--crimson-lit);
}

.prose {
  max-width: 76ch;
}

.prose > * + * {
  margin-top: 1.15rem;
}

.prose h2 {
  font-family: var(--f-display);
  font-size: clamp(1.5rem, 2.6vw, 1.95rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  margin-top: 3.25rem;
  padding-top: 0.35rem;
  scroll-margin-top: calc(var(--nav-h) + 28px);
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  font-size: 1.0625rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--bone);
  margin-top: 2.15rem;
  scroll-margin-top: calc(var(--nav-h) + 28px);
}

.prose h4 {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 1.9rem;
}

.prose p,
.prose li {
  font-size: 0.9688rem;
  line-height: 1.78;
  color: var(--muted);
}

.prose strong {
  color: var(--text);
  font-weight: 600;
}

.prose a:not(.btn):not(.link) {
  color: var(--crimson-lit);
  border-bottom: 1px solid rgba(227, 58, 68, 0.35);
  transition: border-color 0.3s;
}

.prose a:not(.btn):not(.link):hover {
  border-bottom-color: var(--crimson-lit);
}

.prose ul,
.prose ol {
  display: grid;
  gap: 0.6rem;
  padding-left: 0;
}

.prose ul li {
  position: relative;
  padding-left: 1.35rem;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--crimson);
}

.prose ol {
  counter-reset: n;
}

.prose ol li {
  position: relative;
  padding-left: 2rem;
  counter-increment: n;
}

.prose ol li::before {
  content: counter(n, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1em;
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  color: var(--crimson-lit);
}

.prose code {
  font-family: var(--f-mono);
  font-size: 0.85em;
  padding: 0.1em 0.42em;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--gold-lit);
}

.prose hr {
  height: 1px;
  border: 0;
  margin-block: 2.5rem;
  background: var(--line);
}

/* Callout */
.note {
  position: relative;
  padding: 1.15rem 1.35rem;
  border: 1px solid var(--line);
  border-left: 2px solid var(--crimson);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(184, 28, 38, 0.06);
}

.note p {
  font-size: 0.9062rem;
  line-height: 1.68;
  color: var(--text);
}

.note__label {
  display: block;
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--crimson-lit);
  margin-bottom: 0.45rem;
}

.note--gold {
  border-left-color: var(--gold);
  background: rgba(201, 162, 39, 0.07);
}

.note--gold .note__label {
  color: var(--gold-lit);
}

.note--quantum {
  border-left-color: var(--violet);
  background: rgba(139, 92, 246, 0.08);
}

.note--quantum .note__label {
  color: var(--cyan);
}

/* ---------- 21. Footer ---------- */

.footer {
  position: relative;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(184, 28, 38, 0.05));
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: 2rem;
  overflow: hidden;
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

@media (max-width: 900px) {
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 540px) {
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
}

.footer__brand > * + * {
  margin-top: 1rem;
}

.footer__blurb {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--muted);
  max-width: 34ch;
}

.footer__col h5 {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 1.1rem;
}

.footer__col li + li {
  margin-top: 0.65rem;
}

.footer__col a {
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.28s var(--ease);
}

.footer__col a:hover {
  color: var(--bone);
}

.footer__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.footer__legal {
  font-size: 0.8125rem;
  color: var(--faint);
}

.footer__legal--quiet {
  font-size: 0.625rem;
  letter-spacing: 0.02em;
  opacity: 0.7;
}

.footer__wordmark {
  position: absolute;
  left: 50%;
  bottom: -3.5vw;
  transform: translateX(-50%);
  font-family: var(--f-display);
  font-size: clamp(6rem, 22vw, 19rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.045);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  z-index: 0;
}

/* ---------- 22. Reveal animation ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  transition-delay: var(--d, 0ms);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 23. Utilities ---------- */

.center { text-align: center; }
.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.75rem; }
.mt-2 { margin-top: 1.5rem; }
.mt-3 { margin-top: 2.25rem; }
.mt-4 { margin-top: 3rem; }
.mb-2 { margin-bottom: 1.5rem; }
.mx-auto { margin-inline: auto; }
.maxw-60 { max-width: 60ch; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 999;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 12px 12px;
  background: var(--crimson);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  transition: top 0.3s var(--ease);
}

.skip:focus {
  top: 0;
}

/* ---------- 25. Interior: sticky subnav ---------- */

.subnav {
  position: sticky;
  top: var(--nav-h);
  z-index: 700;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 5, 7, 0.78);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
}

.subnav__inner {
  display: flex;
  gap: 0.3rem;
  overflow-x: auto;
  padding-block: 0.7rem;
  scrollbar-width: none;
}

.subnav__inner::-webkit-scrollbar {
  display: none;
}

.subnav a {
  flex: none;
  padding: 0.48rem 0.95rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 550;
  color: var(--muted);
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.subnav a:hover {
  color: var(--bone);
  background: rgba(255, 255, 255, 0.05);
}

.subnav a.is-active {
  color: #fff;
  background: linear-gradient(140deg, var(--crimson-lit), var(--crimson-deep));
}

/* ---------- 26. Feature showcases ---------- */

.slogan {
  font-family: var(--f-sans);
  font-weight: 800;
  font-size: clamp(1.65rem, 4.6vw, 3.15rem);
  letter-spacing: -0.045em;
  text-transform: uppercase;
  line-height: 0.94;
  color: var(--bone);
  max-width: 16ch;
}

.slogan span {
  display: block;
  background: linear-gradient(100deg, var(--bone) 20%, var(--gold-lit));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.slogan--quantum span {
  background: linear-gradient(100deg, var(--violet), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
}

.shot-pair {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 1rem;
  align-items: end;
}

.shot-pair figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-2);
  background: var(--ink-800);
  box-shadow: var(--shadow-lift);
}

.shot-pair img {
  width: 100%;
  display: block;
  object-fit: cover;
  object-position: top center;
}

.shot-pair .phone img {
  aspect-ratio: 620 / 1343;
}

.shot-pair .tablet img {
  aspect-ratio: 900 / 1202;
}

@media (max-width: 720px) {
  .shot-pair {
    grid-template-columns: minmax(0, 0.46fr) minmax(0, 0.54fr);
  }
}

.feature-block + .feature-block {
  border-top: 1px solid var(--line);
}

.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.4rem;
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}

.legal-meta a {
  color: var(--muted);
}

.legal-meta a:hover {
  color: var(--bone);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

@media (max-width: 860px) {
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.6rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.012));
}

.contact-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
}

.contact-card .mail {
  font-family: var(--f-mono);
  font-size: 0.9375rem;
  color: var(--bone);
  word-break: break-all;
}

.contact-card .link,
.card > .link {
  align-self: flex-start;
}

/* ---------- 27. 404 ---------- */

.error {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: calc(var(--nav-h) + 3rem) var(--gutter) 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.error .d1 {
  font-size: clamp(5rem, 18vw, 12rem);
  line-height: 0.8;
  background: linear-gradient(180deg, var(--bone), rgba(244, 239, 232, 0.15));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.error .lede {
  margin-inline: auto;
}

/* ---------- 24. Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}