/* ==========================================================================
   Kivixa — light glassmorphic landing page
   1. Tokens
   2. Reset & base
   3. Ambient backdrop
   4. Layout primitives
   5. Glass system, buttons, pills
   6. Header / navigation
   7. Hero
   8. Platform strip
   9. Feature cards
   10. AI section
   11. Toolkit bento
   12. Privacy
   13. Downloads
   14. FAQ
   15. CTA & footer
   16. Motion / reveal
   17. Responsive
   18. Preferences & a11y
   ========================================================================== */

/* ------------------------------- 1. Tokens ------------------------------- */
:root {
  --bg: #f6f7fb;
  --bg-deep: #edf0f7;
  --ink: #0d1220;
  --ink-2: #49536e;
  --ink-3: #7d87a3;
  --line: rgba(13, 18, 32, 0.08);
  --line-soft: rgba(13, 18, 32, 0.055);

  --glass: rgba(255, 255, 255, 0.62);
  --glass-strong: rgba(255, 255, 255, 0.8);
  --glass-hairline: rgba(255, 255, 255, 0.75);
  --glass-edge: rgba(255, 255, 255, 0.4);

  --accent: #3d5afe;
  --accent-2: #7a63ff;
  --accent-soft: rgba(61, 90, 254, 0.1);
  --gold: #b98f43;
  --gold-soft: rgba(185, 143, 67, 0.14);
  --success: #12805c;
  --success-soft: rgba(18, 128, 92, 0.12);

  --shadow-xs: 0 1px 2px rgba(13, 18, 32, 0.05);
  --shadow-s: 0 8px 20px -12px rgba(13, 18, 32, 0.18);
  --shadow-m: 0 20px 40px -15px rgba(13, 18, 32, 0.14);
  --shadow-l: 0 36px 70px -28px rgba(13, 18, 32, 0.3);

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 30px;
  --r-pill: 999px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono",
    monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --container: 1180px;
  --gutter: clamp(20px, 5vw, 40px);
  --section-y: clamp(76px, 11vw, 140px);
}

/* ----------------------------- 2. Reset & base ---------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

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

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: -0.025em;
  font-weight: 600;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

::selection {
  background: rgba(61, 90, 254, 0.18);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* --------------------------- 3. Ambient backdrop -------------------------- */
.ambient {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(1200px 700px at 78% -8%, rgba(255, 255, 255, 0.95), transparent 60%),
    linear-gradient(180deg, #f8f9fc 0%, #f4f6fb 42%, #eef1f8 100%);
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  will-change: transform;
}

.blob-a {
  width: 620px;
  height: 620px;
  top: -220px;
  left: -140px;
  background: radial-gradient(circle at 30% 30%, #cdd9ff, rgba(205, 217, 255, 0));
  animation: drift 26s var(--ease) infinite alternate;
}

.blob-b {
  width: 560px;
  height: 560px;
  top: 8%;
  right: -180px;
  background: radial-gradient(circle at 60% 40%, #ffe4d6, rgba(255, 228, 214, 0));
  animation: drift 32s var(--ease) infinite alternate-reverse;
}

.blob-c {
  width: 700px;
  height: 700px;
  bottom: -280px;
  left: 22%;
  background: radial-gradient(circle at 50% 50%, #e2dbff, rgba(226, 219, 255, 0));
  animation: drift 38s var(--ease) infinite alternate;
}

.blob-d {
  width: 520px;
  height: 520px;
  top: 46%;
  right: 8%;
  background: radial-gradient(circle at 50% 50%, #d5f2e7, rgba(213, 242, 231, 0));
  opacity: 0.45;
  animation: drift 30s var(--ease) infinite alternate-reverse;
}

.grain {
  position: absolute;
  inset: 0;
  opacity: 0.4;
  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='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.28'/%3E%3C/svg%3E");
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(60px, 44px, 0) scale(1.12);
  }
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 60;
  background: transparent;
}

.scroll-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--gold));
  transform-origin: left center;
}

/* --------------------------- 4. Layout primitives ------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container-narrow {
  max-width: 900px;
}

.section {
  position: relative;
  padding-block: var(--section-y);
}

.section-alt::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0),
    rgba(255, 255, 255, 0.55) 18%,
    rgba(255, 255, 255, 0.55) 82%,
    rgba(255, 255, 255, 0)
  );
  backdrop-filter: blur(2px);
}

.section-head {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: clamp(40px, 6vw, 68px);
}

.overline {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-head h2 {
  margin-top: 14px;
  font-size: clamp(2rem, 4.6vw, 3.2rem);
}

.section-head h2 em,
.cta-copy h2 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
  background: linear-gradient(100deg, var(--accent) 10%, var(--accent-2) 60%, var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-sub {
  margin-top: 18px;
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  color: var(--ink-2);
}

/* ------------------- 5. Glass system, buttons, pills ---------------------- */
.glass {
  position: relative;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.74), rgba(255, 255, 255, 0.48));
  -webkit-backdrop-filter: blur(22px) saturate(170%);
  backdrop-filter: blur(22px) saturate(170%);
  border: 1px solid var(--glass-hairline);
  box-shadow:
    var(--shadow-m),
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(13, 18, 32, 0.07);
  box-shadow: var(--shadow-xs);
  white-space: nowrap;
}

.pill-accent {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: rgba(61, 90, 254, 0.2);
  box-shadow: none;
}

.pill-success {
  color: var(--success);
  background: var(--success-soft);
  border-color: rgba(18, 128, 92, 0.2);
  box-shadow: none;
}

.pill-glass {
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-color: rgba(255, 255, 255, 0.8);
  font-size: 0.78rem;
  padding: 7px 15px;
}

.dot-accent {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: var(--r-pill);
  font-size: 0.925rem;
  font-weight: 550;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition:
    transform 0.35s var(--ease),
    box-shadow 0.35s var(--ease),
    background-color 0.35s var(--ease),
    border-color 0.35s var(--ease),
    color 0.35s var(--ease);
}

.btn .ico {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.35s var(--ease);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(140deg, #1d2749 0%, #0d1220 70%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow:
    0 10px 24px -12px rgba(13, 18, 32, 0.7),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow:
    0 16px 34px -14px rgba(61, 90, 254, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:hover .ico {
  transform: translateX(3px);
}

.btn-ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.6);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(13, 18, 32, 0.09);
  box-shadow: var(--shadow-xs);
}

.btn-ghost:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(13, 18, 32, 0.16);
  box-shadow: var(--shadow-s);
}

.btn-lg {
  padding: 14px 26px;
  font-size: 0.98rem;
}

.btn-block {
  width: 100%;
}

.btn .ico[viewBox] path:first-child {
  fill: none;
}

a.btn svg path[fill] {
  fill: currentColor;
  stroke: none;
}

/* --------------------------- 6. Header / nav ------------------------------ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition:
    background-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease),
    border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.66);
  -webkit-backdrop-filter: blur(20px) saturate(170%);
  backdrop-filter: blur(20px) saturate(170%);
  border-bottom-color: rgba(255, 255, 255, 0.7);
  box-shadow: 0 10px 30px -22px rgba(13, 18, 32, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  box-shadow: var(--shadow-xs);
}

.brand-name {
  font-size: 1.02rem;
}

.brand-pill {
  font-size: 0.64rem;
  padding: 3px 9px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav a {
  padding: 8px 14px;
  border-radius: var(--r-pill);
  font-size: 0.9rem;
  color: var(--ink-2);
  transition:
    color 0.3s var(--ease),
    background-color 0.3s var(--ease);
}

.nav a:hover {
  color: var(--ink);
  background: rgba(13, 18, 32, 0.05);
}

.nav a.is-active {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow-xs);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-actions .btn {
  padding: 9px 16px;
  font-size: 0.875rem;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  border: 1px solid rgba(13, 18, 32, 0.09);
  background: rgba(255, 255, 255, 0.7);
  place-items: center;
  padding: 12px 11px;
  flex-direction: column;
  justify-content: space-between;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1.7px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.35s var(--ease);
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(5.1px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-5.1px) rotate(-45deg);
}

.mobile-menu {
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.86);
  -webkit-backdrop-filter: blur(22px);
  backdrop-filter: blur(22px);
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  padding: 12px var(--gutter) 22px;
}

.mobile-menu a {
  padding: 13px 4px;
  font-size: 1.05rem;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line-soft);
}

.mobile-menu a:last-child {
  border-bottom: 0;
}

/* -------------------------------- 7. Hero -------------------------------- */
.hero {
  position: relative;
  padding-top: clamp(120px, 17vw, 190px);
  padding-bottom: clamp(60px, 9vw, 110px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: clamp(36px, 5vw, 70px);
  align-items: center;
}

.hero-title {
  margin-top: 22px;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.02;
}

.hero-title-muted {
  display: block;
  color: var(--ink-3);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.015em;
}

.hero-sub {
  margin-top: 22px;
  max-width: 34rem;
  font-size: clamp(1.02rem, 1.7vw, 1.15rem);
  color: var(--ink-2);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-meta {
  margin-top: 26px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.hero-pronounce {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 12px;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  font-size: 0.8rem;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.75);
}

.hero-pronounce em {
  font-style: italic;
  font-weight: 600;
  color: var(--ink);
}

.hero-pronounce .ipa {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--ink-3);
}

/* Hero visual — floating glass workspace */
.hero-visual {
  position: relative;
  min-height: 470px;
}

.mock {
  border-radius: var(--r-lg);
}

.mock-main {
  position: absolute;
  inset: 18px 24px auto 0;
  overflow: hidden;
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 13px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.55);
}

.mock-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(13, 18, 32, 0.14);
}

.mock-dot:nth-child(1) {
  background: rgba(217, 119, 112, 0.75);
}
.mock-dot:nth-child(2) {
  background: rgba(196, 181, 95, 0.8);
}
.mock-dot:nth-child(3) {
  background: rgba(106, 191, 139, 0.85);
}

.mock-path {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--ink-3);
}

.mock-body {
  display: grid;
  grid-template-columns: 58px 1fr;
  min-height: 268px;
}

.mock-rail {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 14px;
  border-right: 1px solid rgba(255, 255, 255, 0.65);
  background: rgba(255, 255, 255, 0.4);
}

.rail-item {
  height: 26px;
  border-radius: 8px;
  background: rgba(13, 18, 32, 0.07);
}

.rail-item.is-active {
  background: linear-gradient(140deg, rgba(61, 90, 254, 0.9), rgba(122, 99, 255, 0.85));
  box-shadow: 0 6px 14px -8px rgba(61, 90, 254, 0.9);
}

.mock-doc {
  padding: 22px 24px;
}

.mock-doc h3 {
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.skel {
  display: block;
  height: 9px;
  border-radius: 6px;
  background: linear-gradient(
    90deg,
    rgba(13, 18, 32, 0.09),
    rgba(13, 18, 32, 0.05) 60%,
    rgba(13, 18, 32, 0.09)
  );
  margin-bottom: 11px;
}

.skel.w92 {
  width: 92%;
}
.skel.w78 {
  width: 78%;
}
.skel.w85 {
  width: 85%;
}
.skel.w60 {
  width: 60%;
}

.mock-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.tag {
  padding: 4px 11px;
  border-radius: var(--r-pill);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(61, 90, 254, 0.18);
}

.tag-ghost {
  color: var(--ink-3);
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(13, 18, 32, 0.08);
}

.mock-ai {
  position: absolute;
  right: 0;
  bottom: 12px;
  width: min(320px, 78%);
  padding: 15px 17px 17px;
}

.mock-ai-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 11px;
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0 rgba(18, 128, 92, 0.5);
  animation: pulse 2.4s var(--ease) infinite;
}

@keyframes pulse {
  70% {
    box-shadow: 0 0 0 9px rgba(18, 128, 92, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(18, 128, 92, 0);
  }
}

.bubble {
  font-size: 0.83rem;
  line-height: 1.5;
  padding: 9px 13px;
  border-radius: 14px;
  background: rgba(13, 18, 32, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.bubble + .bubble {
  margin-top: 8px;
}

.bubble-reply {
  background: rgba(61, 90, 254, 0.09);
  border-color: rgba(61, 90, 254, 0.16);
  color: var(--ink);
}

.bubble strong {
  font-weight: 600;
  color: var(--accent);
}

.mock-timer {
  position: absolute;
  left: -18px;
  bottom: 104px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 16px 11px 12px;
  border-radius: var(--r-pill);
}

.mock-timer b {
  display: block;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}

.mock-timer span {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.ring {
  width: 36px;
  height: 36px;
  transform: rotate(-90deg);
}

.ring-track {
  fill: none;
  stroke: rgba(13, 18, 32, 0.1);
  stroke-width: 3.4;
}

.ring-value {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3.4;
  stroke-linecap: round;
  stroke-dasharray: 94.2;
  stroke-dashoffset: 26;
}

.float-slow {
  animation: float 9s ease-in-out infinite;
}
.float-mid {
  animation: float 7s ease-in-out infinite reverse;
}
.float-fast {
  animation: float 6s ease-in-out 0.8s infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

/* --------------------------- 8. Platform strip ---------------------------- */
.strip {
  position: relative;
  padding-block: 30px;
  border-block: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.42);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.strip-label {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.strip-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(24px, 6vw, 68px);
  margin-top: 16px;
}

.strip-list li {
  position: relative;
  font-size: 0.98rem;
  font-weight: 550;
  letter-spacing: -0.01em;
  color: var(--ink-2);
  transition: color 0.3s var(--ease);
}

.strip-list li::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -12px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(61, 90, 254, 0.5);
  transform: translateX(-50%) scale(0);
  transition: transform 0.35s var(--ease);
}

.strip-list li:hover {
  color: var(--ink);
}

.strip-list li:hover::before {
  transform: translateX(-50%) scale(1);
}

/* ---------------------------- 9. Feature cards ---------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
}

.card {
  padding: clamp(22px, 2.4vw, 30px);
  border-radius: var(--r-lg);
  transition:
    transform 0.45s var(--ease),
    box-shadow 0.45s var(--ease),
    border-color 0.45s var(--ease);
}

.card::after,
.bento-card::after,
.mini::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  background: radial-gradient(
    340px circle at var(--mx, 50%) var(--my, 0%),
    rgba(61, 90, 254, 0.1),
    transparent 62%
  );
  pointer-events: none;
}

.card:hover,
.bento-card:hover,
.mini:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.95);
  box-shadow:
    0 34px 60px -26px rgba(13, 18, 32, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

.card:hover::after,
.bento-card:hover::after,
.mini:hover::after {
  opacity: 1;
}

.card-top,
.dl-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.icon-chip {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  color: var(--ink);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.6));
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow:
    var(--shadow-s),
    inset 0 1px 0 #fff;
}

.icon-chip .ico {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h3,
.bento-card h3,
.mini h3,
.note h3 {
  font-size: 1.14rem;
  letter-spacing: -0.02em;
}

.card p,
.bento-card p,
.mini p {
  margin-top: 10px;
  font-size: 0.94rem;
  color: var(--ink-2);
}

/* ------------------------------ 10. AI section ---------------------------- */
.ai-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.registry {
  border-radius: var(--r-xl);
  overflow: hidden;
}

.registry-head {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 15px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.5);
}

.registry-path {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--ink-3);
}

.registry-list {
  padding: 8px 8px;
  max-height: 440px;
  overflow-y: auto;
}

.registry-list li {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 9px 14px;
  border-radius: 12px;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  transition: background-color 0.3s var(--ease);
}

.registry-list li:hover {
  background: rgba(255, 255, 255, 0.72);
}

.registry-list .ok {
  color: var(--success);
  font-weight: 700;
}

.registry-list .m-name {
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.m-tag {
  padding: 3px 10px;
  border-radius: var(--r-pill);
  font-size: 0.63rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(13, 18, 32, 0.08);
  white-space: nowrap;
}

.registry-list li:nth-child(6) .m-tag,
.registry-list li:nth-child(13) .m-tag,
.registry-list li:nth-child(16) .m-tag {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: rgba(61, 90, 254, 0.2);
}

.registry-list li:nth-child(3) .m-tag,
.registry-list li:nth-child(12) .m-tag,
.registry-list li:nth-child(17) .m-tag {
  color: var(--gold);
  background: var(--gold-soft);
  border-color: rgba(185, 143, 67, 0.25);
}

.registry-foot {
  padding: 13px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.5);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--success);
}

.ai-notes {
  display: grid;
  gap: clamp(16px, 2vw, 22px);
}

.note {
  padding: clamp(22px, 2.4vw, 28px);
  border-radius: var(--r-lg);
}

.ticks {
  margin-top: 14px;
  display: grid;
  gap: 9px;
}

.ticks li {
  position: relative;
  padding-left: 26px;
  font-size: 0.9rem;
  color: var(--ink-2);
}

.ticks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 17px;
  height: 17px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--success);
  background: var(--success-soft);
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(20px, 3vw, 34px);
}

.mini {
  padding: clamp(20px, 2vw, 26px);
  border-radius: var(--r-lg);
  transition:
    transform 0.45s var(--ease),
    box-shadow 0.45s var(--ease),
    border-color 0.45s var(--ease);
}

.mini h3 {
  font-size: 1rem;
}

.mini p {
  font-size: 0.88rem;
}

/* ----------------------------- 11. Toolkit bento -------------------------- */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(16px, 2vw, 22px);
}

.bento-card {
  position: relative;
  grid-column: span 2;
  padding: clamp(22px, 2.4vw, 30px);
  border-radius: var(--r-lg);
  transition:
    transform 0.45s var(--ease),
    box-shadow 0.45s var(--ease),
    border-color 0.45s var(--ease);
}

.bento-card.span-3 {
  grid-column: span 3;
}

.bento-card .icon-chip {
  margin-bottom: 18px;
}

.bento-card code {
  padding: 1px 6px;
  border-radius: 6px;
  background: rgba(13, 18, 32, 0.06);
  color: var(--ink);
}

/* ------------------------------- 12. Privacy ------------------------------ */
.privacy-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.privacy-cards {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.privacy-cards .card h3 {
  margin-top: 16px;
}

.privacy-visual {
  display: grid;
  place-items: center;
}

.lock-glass {
  display: grid;
  place-items: center;
  gap: 18px;
  padding: clamp(30px, 4vw, 52px);
  border-radius: var(--r-xl);
  width: 100%;
}

.lock-glass svg {
  width: min(220px, 60%);
  height: auto;
  filter: drop-shadow(0 24px 34px rgba(13, 18, 32, 0.24));
}

.lock-caption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--ink-3);
  text-align: center;
}

/* ------------------------------ 13. Downloads ----------------------------- */
.dl-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
}

.dl-card {
  display: flex;
  flex-direction: column;
}

.dl-card > p {
  font-size: 0.9rem;
  color: var(--ink-2);
  margin-bottom: 18px;
  flex-grow: 0;
}

.dl-more {
  border-style: dashed;
  border-color: rgba(13, 18, 32, 0.16);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.3));
}

.dl-head h3 {
  font-size: 1.1rem;
}

.dl-card .btn {
  margin-top: auto;
}

.dl-note {
  margin-top: 12px;
  margin-bottom: 0 !important;
  font-size: 0.78rem !important;
  color: var(--ink-3) !important;
  text-align: center;
}

.code-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  padding: 9px 10px 9px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(13, 18, 32, 0.07);
}

.code-row code {
  font-size: 0.76rem;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-btn {
  padding: 5px 12px;
  border-radius: var(--r-pill);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink-2);
  background: rgba(13, 18, 32, 0.05);
  border: 1px solid rgba(13, 18, 32, 0.07);
  transition:
    background-color 0.3s var(--ease),
    color 0.3s var(--ease);
  flex-shrink: 0;
}

.copy-btn:hover {
  background: rgba(61, 90, 254, 0.1);
  color: var(--accent);
  border-color: rgba(61, 90, 254, 0.25);
}

.copy-btn.is-done {
  color: var(--success);
  background: var(--success-soft);
  border-color: rgba(18, 128, 92, 0.25);
}

.fdroid {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed rgba(13, 18, 32, 0.12);
}

.fdroid b {
  font-size: 0.82rem;
}

.fdroid ol {
  margin-top: 8px;
  list-style: decimal;
  padding-left: 18px;
  display: grid;
  gap: 4px;
}

.fdroid ol li {
  font-size: 0.8rem;
  color: var(--ink-2);
}

.fdroid .code-row {
  margin-top: 10px;
}

.fdroid-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  border-bottom: 1px solid rgba(61, 90, 254, 0.3);
}

.fdroid-link:hover {
  border-bottom-color: var(--accent);
}

/* --------------------------------- 14. FAQ -------------------------------- */
.faq {
  border-radius: var(--r-xl);
  padding: clamp(8px, 1.4vw, 14px) clamp(18px, 2.6vw, 34px);
}

.faq-item + .faq-item {
  border-top: 1px solid var(--line-soft);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 22px 2px;
  text-align: left;
  font-size: clamp(1rem, 1.7vw, 1.08rem);
  font-weight: 550;
  letter-spacing: -0.015em;
  transition: color 0.3s var(--ease);
}

.faq-q:hover {
  color: var(--accent);
}

.faq-chevron {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.4s var(--ease);
}

.faq-item.is-open .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease-out);
}

.faq-item.is-open .faq-a {
  grid-template-rows: 1fr;
}

.faq-a > div {
  overflow: hidden;
}

.faq-a p {
  padding: 0 2px 24px;
  font-size: 0.95rem;
  color: var(--ink-2);
  max-width: 62ch;
}

/* ----------------------------- 15. CTA & footer --------------------------- */
.cta-section {
  padding-bottom: clamp(50px, 7vw, 80px);
}

.cta {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  padding: clamp(32px, 5vw, 64px);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 90, 254, 0.16), transparent 65%);
  pointer-events: none;
}

.cta-copy {
  position: relative;
}

.cta-copy h2 {
  margin-top: 14px;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
}

.cta-copy > p:not(.overline) {
  margin-top: 16px;
  color: var(--ink-2);
  max-width: 46ch;
}

.cta-meta {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.cta-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.cta-links a {
  padding: 12px 16px;
  border-radius: 14px;
  font-size: 0.9rem;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.85);
  transition:
    transform 0.35s var(--ease),
    color 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}

.cta-links a:hover {
  transform: translateY(-3px);
  color: var(--ink);
  box-shadow: var(--shadow-s);
}

.cta-stack {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.45);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 30px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-tag {
  max-width: 46ch;
  font-size: 0.78rem;
  color: var(--ink-3);
  line-height: 1.5;
}

.footer-legal,
.footer-version {
  font-size: 0.78rem;
  color: var(--ink-3);
}

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

/* --------------------------- 16. Motion / reveal -------------------------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px) scale(0.99);
  transition:
    opacity 0.85s var(--ease-out) var(--d, 0ms),
    transform 0.85s var(--ease-out) var(--d, 0ms);
  will-change: opacity, transform;
}

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

/* ------------------------------ 17. Responsive ---------------------------- */
@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .hero-copy {
    max-width: 46rem;
  }

  .hero-visual {
    min-height: 470px;
    max-width: 560px;
    width: 100%;
    margin-inline: auto;
  }

  .card-grid,
  .dl-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .ai-layout,
  .privacy-grid,
  .cta {
    grid-template-columns: 1fr;
  }

  .bento {
    grid-template-columns: repeat(4, 1fr);
  }

  .bento-card,
  .bento-card.span-3 {
    grid-column: span 2;
  }
}

@media (max-width: 860px) {
  .nav {
    display: none;
  }

  .header-cta,
  .header-actions .btn-ghost span {
    display: none;
  }

  .header-actions .btn-ghost {
    padding: 9px 11px;
  }

  .menu-toggle {
    display: flex;
  }
}

@media (max-width: 700px) {
  .card-grid,
  .dl-grid,
  .mini-grid,
  .bento {
    grid-template-columns: 1fr;
  }

  .bento-card,
  .bento-card.span-3 {
    grid-column: auto;
  }

  .hero {
    padding-top: 110px;
  }

  .hero-visual {
    min-height: 470px;
  }

  .mock-main {
    inset: 0 12px auto 0;
  }

  .mock-ai {
    bottom: 6px;
    width: min(300px, 86%);
  }

  .cta-links {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .registry-list li {
    grid-template-columns: 20px 1fr;
    row-gap: 4px;
  }

  .registry-list .m-tag {
    grid-column: 2;
    justify-self: start;
  }
}

@media (max-width: 420px) {
  .hero-actions .btn {
    width: 100%;
  }

  .mock-timer {
    left: 0;
    bottom: 0;
  }
}

/* ------------------------- 18. Preferences & a11y ------------------------- */
@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;
  }

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