/* =============================================================================
   AquaHelper – styles.css
   Konzept „Klares Wasser / Tiefe": hell & frisch, Wassertöne, ruhig & präzise.
   Aufbau: Fonts · Tokens · Base · Layout · Header · Buttons/Badges · Hero
           · Stats · Features · Tools · Deep-Band · Premium-Teaser · Community
           · CTA · Footer · Seiten (Premium/FAQ/Quick-Start/Changelog/Impressum
           · Download/404) · Motion · Responsive
   ============================================================================= */

/* ----------------------------------------------------------------------------
   Fonts (selbst gehostet, DSGVO-freundlich)
   ---------------------------------------------------------------------------- */
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal; font-weight: 200 800; font-display: swap;
  src: url('../fonts/bricolage-latin.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+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal; font-weight: 200 800; font-display: swap;
  src: url('../fonts/bricolage-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'Manrope';
  font-style: normal; font-weight: 200 800; font-display: swap;
  src: url('../fonts/manrope-latin.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+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'Manrope';
  font-style: normal; font-weight: 200 800; font-display: swap;
  src: url('../fonts/manrope-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal; font-weight: 500; font-display: swap;
  src: url('../fonts/plexmono-500-latin.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+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal; font-weight: 500; font-display: swap;
  src: url('../fonts/plexmono-500-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02AF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal; font-weight: 600; font-display: swap;
  src: url('../fonts/plexmono-600-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2212,U+FEFF,U+FFFD;
}

/* ----------------------------------------------------------------------------
   Design Tokens
   ---------------------------------------------------------------------------- */
:root {
  /* Farben */
  --bg: #F1FAFB;
  --bg-deep: #E4F4F6;
  --bg-deepest: #D7EEF1;
  --surface: #FFFFFF;
  --surface-2: #F6FCFD;
  --ink: #08303A;
  --ink-soft: #143E48;
  --muted: #4C6B72;
  --muted-2: #6E888E;
  --line: rgba(8, 48, 58, .10);
  --line-strong: rgba(8, 48, 58, .16);

  --primary: #0AA7C2;
  --primary-deep: #076C86;
  --primary-bright: #14BAD6;
  --primary-050: #E7F7FA;
  --primary-100: #D2EFF4;
  --primary-ink: #075B6E;

  --good: #1FBE86;
  --good-050: #E4F8F0;
  --warn: #F1A013;
  --warn-050: #FDF1DC;
  --alert: #EF6A64;
  --alert-050: #FCE7E6;
  --leaf: #37B24D;

  /* Verläufe */
  --grad-primary: linear-gradient(135deg, #14BAD6 0%, #0784A0 55%, #076C86 100%);
  --grad-deep: linear-gradient(165deg, #0A7E97 0%, #076C86 45%, #064F63 100%);
  --grad-text: linear-gradient(120deg, #0A93AE 0%, #076C86 100%);

  /* Schatten (kühl getönt, „wässrig") */
  --shadow-xs: 0 1px 2px rgba(8, 48, 58, .06);
  --shadow-sm: 0 2px 6px rgba(8, 48, 58, .07), 0 1px 2px rgba(8, 48, 58, .06);
  --shadow-md: 0 12px 32px -14px rgba(9, 74, 90, .28);
  --shadow-lg: 0 30px 64px -28px rgba(7, 84, 102, .40);
  --shadow-cta: 0 14px 30px -10px rgba(10, 167, 194, .55);

  /* Radien */
  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 34px;
  --r-pill: 999px;

  /* Typografie */
  --font-display: 'Bricolage Grotesque', 'Manrope', system-ui, sans-serif;
  --font-body: 'Manrope', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Code', Consolas, monospace;

  --fs-hero: clamp(2.5rem, 4.4vw + 1rem, 4.35rem);
  --fs-h1: clamp(2.05rem, 3vw + 1rem, 3.2rem);
  --fs-h2: clamp(1.7rem, 1.8vw + 1rem, 2.5rem);
  --fs-h3: clamp(1.2rem, .7vw + 1rem, 1.5rem);
  --fs-lead: clamp(1.05rem, .55vw + 1rem, 1.28rem);
  --fs-body: 1.0625rem;
  --fs-sm: .9375rem;
  --fs-xs: .8125rem;

  /* Layout */
  --container: 1200px;
  --container-narrow: 780px;
  --gutter: clamp(1.15rem, 4vw, 2.5rem);
  --section-pad: clamp(4rem, 8vw, 8rem);
  --header-h: 72px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* ----------------------------------------------------------------------------
   Base / Reset
   ---------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }
html:focus-within { scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.62;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--ink);
  font-weight: 700;
  text-wrap: balance;
}
p { text-wrap: pretty; }

a { color: var(--primary-deep); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--primary); }

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

button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
ul, ol { list-style: none; padding: 0; }

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

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

.skip-link {
  position: absolute; left: 12px; top: -60px;
  z-index: 200;
  background: var(--ink); color: #fff;
  padding: .7rem 1.1rem; border-radius: var(--r-sm);
  font-weight: 600; font-size: var(--fs-sm);
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; color: #fff; }

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

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

.section { padding-block: var(--section-pad); position: relative; }
.section--tint { background: var(--bg-deep); }
.section--tint2 { background: var(--bg-deepest); }
.section--flush-top { padding-top: clamp(2rem, 4vw, 3.5rem); }

.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--font-mono); font-weight: 500;
  font-size: var(--fs-xs); letter-spacing: .16em; text-transform: uppercase;
  color: var(--primary-ink);
}
.eyebrow::before {
  content: "//"; color: var(--primary); font-weight: 600; letter-spacing: 0;
}

.section-head { max-width: 44rem; margin-bottom: clamp(2.2rem, 4vw, 3.4rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head__title { font-size: var(--fs-h2); margin-top: .8rem; }
.section-head__lead { font-size: var(--fs-lead); color: var(--muted); margin-top: 1rem; }

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

/* ----------------------------------------------------------------------------
   Header / Navigation
   ---------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
/* Blur/Hintergrund als Pseudo-Element – so wird KEIN Containing-Block für das
   position:fixed Mobile-Menü erzeugt (sonst hinge es am Header statt am Viewport). */
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(241, 250, 251, .72);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  transition: background .25s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px -22px rgba(7, 84, 102, .5);
}
.site-header.is-scrolled::before { background: rgba(241, 250, 251, .86); }
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; height: var(--header-h);
}

.brand { display: inline-flex; align-items: center; gap: .6rem; color: var(--ink); font-weight: 700; }
.brand:hover { color: var(--ink); }
.brand__mark { width: 34px; height: 34px; border-radius: 10px; box-shadow: var(--shadow-xs); }
.brand__name {
  font-family: var(--font-display); font-size: 1.32rem; letter-spacing: -.02em; font-weight: 700;
}

.nav { display: flex; align-items: center; gap: .35rem; }
.nav > a {
  color: var(--ink-soft); font-weight: 600; font-size: var(--fs-sm);
  padding: .55rem .8rem; border-radius: var(--r-pill);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav > a:not(.nav__cta):hover { color: var(--primary-deep); background: var(--primary-050); }
.nav > a[aria-current="page"]:not(.nav__cta) { color: var(--primary-deep); background: var(--primary-050); }
.nav__cta { margin-left: .5rem; }

.nav-toggle {
  display: none;
  width: 46px; height: 46px; border-radius: 12px;
  align-items: center; justify-content: center;
  border: 1px solid var(--line);
  background: var(--surface);
}
.nav-toggle__box { position: relative; width: 20px; height: 14px; }
.nav-toggle__bar {
  position: absolute; left: 0; width: 20px; height: 2px; border-radius: 2px;
  background: var(--ink); transition: transform .3s var(--ease), opacity .2s var(--ease), top .3s var(--ease);
}
.nav-toggle__bar:nth-child(1) { top: 0; }
.nav-toggle__bar:nth-child(2) { top: 6px; }
.nav-toggle__bar:nth-child(3) { top: 12px; }
body.nav-open .nav-toggle__bar:nth-child(1) { top: 6px; transform: rotate(45deg); }
body.nav-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle__bar:nth-child(3) { top: 6px; transform: rotate(-45deg); }

/* ----------------------------------------------------------------------------
   Buttons & Store-Badges
   ---------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-weight: 700; font-size: var(--fs-sm); line-height: 1;
  padding: .95rem 1.5rem; border-radius: var(--r-pill);
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
}
.btn--sm { padding: .62rem 1.05rem; }
.btn--lg { padding: 1.1rem 1.9rem; font-size: var(--fs-body); }
.btn--primary { background: var(--grad-primary); color: #fff; box-shadow: var(--shadow-cta); }
.btn--primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 38px -10px rgba(10, 167, 194, .62); }
.btn--ghost { background: var(--surface); color: var(--primary-deep); border: 1px solid var(--line-strong); box-shadow: var(--shadow-xs); }
.btn--ghost:hover { color: var(--primary-deep); border-color: var(--primary); background: var(--primary-050); transform: translateY(-2px); }
.btn--on-deep { background: rgba(255, 255, 255, .14); color: #fff; border: 1px solid rgba(255, 255, 255, .38); }
.btn--on-deep:hover { background: #fff; color: var(--primary-deep); }
.btn__icon { width: 1.15em; height: 1.15em; }

.store-badges { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.store-badge {
  display: inline-flex; height: 54px; border-radius: 12px;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease);
  box-shadow: var(--shadow-sm);
}
.store-badge:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.store-badge img { height: 100%; width: auto; border-radius: 12px; }
.store-badge--sm { height: 46px; }

/* ----------------------------------------------------------------------------
   Hero
   ---------------------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; padding-top: clamp(2.5rem, 5vw, 4.5rem); padding-bottom: clamp(3rem, 6vw, 6rem); }
.hero__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.hero__bg::before {
  /* weicher Wasser-Verlauf oben */
  content: ""; position: absolute; inset: -10% -10% auto -10%; height: 80%;
  background:
    radial-gradient(60% 60% at 78% 12%, rgba(20, 186, 214, .22), transparent 70%),
    radial-gradient(55% 55% at 18% 4%, rgba(31, 190, 134, .14), transparent 70%);
}
.hero__caustics {
  position: absolute; inset: -20%; opacity: .5;
  background:
    radial-gradient(closest-side, rgba(255, 255, 255, .8), transparent) 12% 30% / 26% 26%,
    radial-gradient(closest-side, rgba(20, 186, 214, .30), transparent) 78% 20% / 30% 30%,
    radial-gradient(closest-side, rgba(255, 255, 255, .7), transparent) 62% 62% / 22% 22%,
    radial-gradient(closest-side, rgba(7, 132, 160, .18), transparent) 30% 74% / 26% 26%;
  background-repeat: no-repeat;
  filter: blur(22px);
  animation: caustics 22s ease-in-out infinite alternate;
}
.hero .container { position: relative; z-index: 1; }
.hero__grid {
  display: grid; grid-template-columns: 1.12fr .88fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center;
}
.hero__title { font-size: var(--fs-hero); margin-top: 1.1rem; }
.hero__lead { font-size: var(--fs-lead); color: var(--muted); margin-top: 1.4rem; max-width: 34rem; }
.hero__actions { margin-top: 2rem; }
.hero__note {
  margin-top: 1rem; font-family: var(--font-mono); font-size: var(--fs-xs);
  color: var(--muted-2); letter-spacing: .02em; display: inline-flex; gap: .6rem; align-items: center; flex-wrap: wrap;
}
.hero__note .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--good); box-shadow: 0 0 0 4px var(--good-050); }

/* Hero-Device + schwebende Wasserwert-Chips (Signature) */
.hero__stage { position: relative; }
.hero__device {
  width: 100%; height: auto; filter: drop-shadow(0 40px 60px rgba(7, 84, 102, .28));
  animation: floaty 7s ease-in-out infinite;
}
.hero__glow {
  position: absolute; inset: 8% 6% 6% 6%; z-index: -1;
  background: radial-gradient(closest-side, rgba(20, 186, 214, .35), transparent 72%);
  filter: blur(30px);
}
.chip {
  position: absolute; z-index: 2;
  display: inline-flex; align-items: center; gap: .5rem;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: .5rem .85rem;
  font-family: var(--font-mono); font-weight: 600; font-size: .82rem; color: var(--ink);
  box-shadow: var(--shadow-md);
  animation: floaty 6s ease-in-out infinite;
}
.chip .dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.chip .dot--good { background: var(--good); box-shadow: 0 0 0 4px var(--good-050); }
.chip .dot--warn { background: var(--warn); box-shadow: 0 0 0 4px var(--warn-050); }
.chip .dot--alert { background: var(--alert); box-shadow: 0 0 0 4px var(--alert-050); }
.chip .unit { color: var(--muted-2); font-weight: 500; }
.chip--1 { top: 12%; left: -4%; animation-delay: -1s; }
.chip--2 { top: 40%; right: -6%; animation-delay: -3s; }
.chip--3 { bottom: 14%; left: 2%; animation-delay: -2s; }

/* ----------------------------------------------------------------------------
   Stat-Strip
   ---------------------------------------------------------------------------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(.8rem, 2vw, 1.5rem);
  padding: clamp(1.4rem, 3vw, 2rem); background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-sm);
}
.stat { text-align: center; padding: .4rem .5rem; position: relative; }
.stat + .stat::before {
  content: ""; position: absolute; left: 0; top: 18%; height: 64%; width: 1px; background: var(--line);
}
.stat__num {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(1.9rem, 3vw, 2.7rem);
  line-height: 1; letter-spacing: -.03em; color: var(--primary-deep);
}
.stat__num .suffix { color: var(--primary); }
.stat__label { margin-top: .5rem; font-size: var(--fs-sm); color: var(--muted); }

/* ----------------------------------------------------------------------------
   Feature-Blöcke (Wechsel-Layout)
   ---------------------------------------------------------------------------- */
.feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 5vw, 4.5rem);
  align-items: center;
}
.feature + .feature { margin-top: clamp(3.5rem, 7vw, 6.5rem); }
.feature__media { position: relative; display: grid; place-items: center; }
.feature--reverse .feature__media { order: -1; }
.feature__stage {
  position: relative; width: 100%; max-width: 460px; aspect-ratio: 1 / 1;
  display: grid; place-items: center;
}
.feature__stage::before {
  content: ""; position: absolute; inset: 8%;
  background: radial-gradient(closest-side, rgba(20, 186, 214, .22), transparent 72%);
  filter: blur(26px);
}
.feature__img { width: 100%; height: auto; position: relative; filter: drop-shadow(0 30px 46px rgba(7, 84, 102, .24)); }
.feature__title { font-size: var(--fs-h2); margin-top: .8rem; }
.feature__text { color: var(--muted); font-size: var(--fs-lead); margin-top: 1rem; }
.feature__list { margin-top: 1.6rem; display: grid; gap: .85rem; }
.feature__list li { display: flex; gap: .75rem; align-items: flex-start; font-weight: 500; }
.feature__list .check {
  flex: none; width: 24px; height: 24px; border-radius: 8px; margin-top: 1px;
  display: grid; place-items: center; background: var(--good-050); color: var(--good);
}
.feature__list .check svg { width: 14px; height: 14px; }

/* ----------------------------------------------------------------------------
   Tools-Grid
   ---------------------------------------------------------------------------- */
.tools-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(.9rem, 1.8vw, 1.35rem);
}
.tool-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 1.5rem 1.4rem; box-shadow: var(--shadow-xs);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-100); }
.tool-card__icon {
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
  background: var(--primary-050); color: var(--primary-deep); margin-bottom: 1rem;
}
.tool-card__icon svg { width: 24px; height: 24px; }
.tool-card__title { font-size: 1.12rem; font-family: var(--font-display); font-weight: 700; letter-spacing: -.01em; }
.tool-card__text { margin-top: .45rem; color: var(--muted); font-size: var(--fs-sm); }

/* ----------------------------------------------------------------------------
   Deep-Band (KI-Assistent) – „tieferes Wasser"
   ---------------------------------------------------------------------------- */
.band-deep {
  position: relative; overflow: hidden; color: #EAFbff;
  background: var(--grad-deep);
}
.band-deep::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(50% 40% at 85% 10%, rgba(20, 186, 214, .35), transparent 70%),
    radial-gradient(45% 45% at 10% 90%, rgba(31, 190, 134, .2), transparent 70%);
}
.band-deep .container { position: relative; z-index: 1; }
.band-deep h2, .band-deep h3 { color: #fff; }
.ki {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 5vw, 4rem); align-items: center;
}
.ki__eyebrow { color: #BFF0FA; }
.ki__eyebrow::before { color: #BFF0FA; }
.ki__title { font-size: var(--fs-h2); margin-top: .8rem; }
.ki__text { color: #C9E8EF; font-size: var(--fs-lead); margin-top: 1rem; }
.ki__list { margin-top: 1.5rem; display: grid; gap: .8rem; }
.ki__list li { display: flex; gap: .7rem; align-items: flex-start; color: #DFF3F7; font-weight: 500; }
.ki__list .check { flex: none; width: 24px; height: 24px; border-radius: 8px; display: grid; place-items: center; background: rgba(255, 255, 255, .16); color: #7EF0C6; }
.ki__list .check svg { width: 14px; height: 14px; }

/* KI-Chat-Mockup */
.chatcard {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--r-lg); padding: 1.3rem; backdrop-filter: blur(6px);
  box-shadow: var(--shadow-lg); display: grid; gap: .8rem;
}
.chatcard__head { display: flex; align-items: center; gap: .6rem; padding-bottom: .5rem; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.chatcard__avatar { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: rgba(255, 255, 255, .16); color: #fff; }
.chatcard__avatar svg { width: 17px; height: 17px; }
.chatcard__name { font-weight: 700; color: #fff; font-size: var(--fs-sm); }
.chatcard__status { font-family: var(--font-mono); font-size: .7rem; color: #8FE8CC; }
.bubble { padding: .75rem 1rem; border-radius: 15px; font-size: var(--fs-sm); line-height: 1.5; max-width: 88%; }
.bubble--user { background: rgba(255, 255, 255, .18); color: #fff; margin-left: auto; border-bottom-right-radius: 5px; }
.bubble--ai { background: #fff; color: var(--ink); border-bottom-left-radius: 5px; box-shadow: var(--shadow-sm); }
.bubble--ai strong { color: var(--primary-deep); }

/* ----------------------------------------------------------------------------
   Premium-Teaser
   ---------------------------------------------------------------------------- */
.teaser {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-xl); padding: clamp(1.8rem, 4vw, 3.2rem);
  box-shadow: var(--shadow-md); position: relative; overflow: hidden;
}
.teaser::before {
  content: ""; position: absolute; right: -60px; top: -60px; width: 260px; height: 260px;
  background: radial-gradient(closest-side, rgba(20, 186, 214, .22), transparent 70%);
}
.teaser__title { font-size: var(--fs-h2); margin-top: .7rem; }
.teaser__text { color: var(--muted); font-size: var(--fs-lead); margin-top: .9rem; }
.teaser__actions { margin-top: 1.6rem; display: flex; flex-wrap: wrap; gap: .8rem; }
.teaser__badge {
  justify-self: end; position: relative; z-index: 1;
  background: var(--grad-primary); color: #fff; border-radius: var(--r-lg); padding: 1.6rem;
  box-shadow: var(--shadow-cta); width: 100%; max-width: 280px;
}
.teaser__badge .mono { font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .14em; text-transform: uppercase; opacity: .85; }
.teaser__badge .big { font-family: var(--font-display); font-weight: 700; font-size: 2rem; line-height: 1.1; margin-top: .3rem; }
.teaser__badge ul { margin-top: 1rem; display: grid; gap: .5rem; }
.teaser__badge li { display: flex; gap: .5rem; align-items: center; font-size: var(--fs-sm); }
.teaser__badge li svg { width: 15px; height: 15px; flex: none; }

/* ----------------------------------------------------------------------------
   Community
   ---------------------------------------------------------------------------- */
.community__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.community__title { font-size: var(--fs-h2); margin-top: .8rem; }
.community__text { color: var(--muted); font-size: var(--fs-lead); margin-top: 1rem; }
.creator {
  display: flex; gap: 1.1rem; align-items: center; margin-top: 1.8rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 1.1rem 1.3rem; box-shadow: var(--shadow-xs); max-width: 30rem;
}
.creator img { width: 66px; height: 66px; border-radius: 14px; object-fit: cover; flex: none; background: var(--bg-deep); }
.creator__name { font-weight: 700; font-family: var(--font-display); }
.creator__role { color: var(--muted); font-size: var(--fs-sm); margin-top: .1rem; }
.social-links { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.6rem; }
.social-link {
  display: inline-flex; align-items: center; gap: .5rem; font-weight: 600; font-size: var(--fs-sm);
  background: var(--surface); border: 1px solid var(--line-strong); color: var(--ink-soft);
  padding: .6rem 1rem; border-radius: var(--r-pill); box-shadow: var(--shadow-xs);
  transition: transform .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.social-link:hover { transform: translateY(-2px); border-color: var(--primary); color: var(--primary-deep); }
.social-link svg { width: 18px; height: 18px; }

.community__aside {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: clamp(1.6rem, 3vw, 2.4rem); box-shadow: var(--shadow-md);
}
.community__stat { display: flex; align-items: baseline; gap: .6rem; }
.community__stat + .community__stat { margin-top: 1.2rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.community__stat b { font-family: var(--font-display); font-size: 2rem; color: var(--primary-deep); letter-spacing: -.02em; }
.community__stat span { color: var(--muted); }

/* ----------------------------------------------------------------------------
   CTA-Band
   ---------------------------------------------------------------------------- */
.cta-band { position: relative; overflow: hidden; background: var(--grad-primary); color: #fff; text-align: center; }
.cta-band::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(40% 60% at 15% 20%, rgba(255, 255, 255, .25), transparent 70%),
    radial-gradient(45% 55% at 85% 90%, rgba(6, 79, 99, .4), transparent 70%);
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 { color: #fff; font-size: var(--fs-h1); }
.cta-band p { color: rgba(255, 255, 255, .9); font-size: var(--fs-lead); margin: 1rem auto 0; max-width: 40rem; }
.cta-band .store-badges { justify-content: center; margin-top: 2rem; }

/* ----------------------------------------------------------------------------
   Footer
   ---------------------------------------------------------------------------- */
.site-footer { background: var(--ink); color: #C7DCE1; padding-top: clamp(3rem, 6vw, 5rem); }
.site-footer a { color: #C7DCE1; }
.site-footer a:hover { color: #fff; }
.site-footer__inner {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: clamp(1.6rem, 4vw, 3rem);
  padding-bottom: 3rem; border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.site-footer .brand { color: #fff; }
.site-footer__brand p { color: #9FBDC4; margin-top: 1rem; max-width: 26rem; font-size: var(--fs-sm); }
.site-footer__brand .store-badges { margin-top: 1.5rem; }
.site-footer__col h3 { color: #fff; font-family: var(--font-display); font-size: 1rem; margin-bottom: 1rem; }
.site-footer__col a { display: block; padding: .32rem 0; font-size: var(--fs-sm); font-weight: 500; }
.site-footer__bottom {
  display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; justify-content: space-between;
  padding-block: 1.6rem; color: #8AA9B1; font-size: var(--fs-xs);
}
.site-footer__bottom p { font-family: var(--font-mono); }

/* ----------------------------------------------------------------------------
   Sub-Page Hero (kleiner)
   ---------------------------------------------------------------------------- */
.page-hero { position: relative; overflow: hidden; padding-top: clamp(2.6rem, 5vw, 4.5rem); padding-bottom: clamp(2rem, 4vw, 3.2rem); }
.page-hero__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.page-hero__bg::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 120%;
  background: radial-gradient(50% 60% at 80% 0%, rgba(20, 186, 214, .18), transparent 70%),
              radial-gradient(45% 50% at 12% 0%, rgba(31, 190, 134, .1), transparent 70%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero__title { font-size: var(--fs-h1); margin-top: 1rem; }
.page-hero__lead { font-size: var(--fs-lead); color: var(--muted); margin-top: 1rem; max-width: 46rem; }

/* Breadcrumb-ähnliche Mono-Zeile */
.crumb { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--muted-2); letter-spacing: .04em; }
.crumb a { color: var(--muted-2); }
.crumb a:hover { color: var(--primary-deep); }

/* ----------------------------------------------------------------------------
   Premium-Seite: Plan-Karten + Vergleichstabelle
   ---------------------------------------------------------------------------- */
.note-banner {
  display: flex; gap: .7rem; align-items: flex-start;
  background: var(--warn-050); border: 1px solid rgba(241, 160, 19, .35); border-radius: var(--r-md);
  padding: .9rem 1.1rem; color: #8A5A00; font-size: var(--fs-sm);
}
.note-banner svg { width: 18px; height: 18px; flex: none; margin-top: 2px; color: var(--warn); }

.plans { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1rem, 3vw, 1.8rem); }
.plan {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: clamp(1.6rem, 3vw, 2.4rem); box-shadow: var(--shadow-sm); position: relative; display: flex; flex-direction: column;
}
.plan--featured { border-color: var(--primary); box-shadow: var(--shadow-lg); }
.plan--featured::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: var(--grad-primary);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
.plan__badge {
  position: absolute; top: -13px; left: clamp(1.6rem, 3vw, 2.4rem);
  background: var(--grad-primary); color: #fff; font-family: var(--font-mono); font-weight: 600;
  font-size: var(--fs-xs); letter-spacing: .1em; text-transform: uppercase;
  padding: .35rem .8rem; border-radius: var(--r-pill); box-shadow: var(--shadow-cta);
}
.plan__name { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; }
.plan__price { display: flex; align-items: baseline; gap: .35rem; margin-top: .9rem; }
.plan__price b { font-family: var(--font-display); font-size: clamp(2.2rem, 4vw, 3rem); letter-spacing: -.03em; color: var(--ink); line-height: 1; }
.plan__price .per { color: var(--muted); font-size: var(--fs-sm); }
.plan__price .ph { font-family: var(--font-mono); font-size: .7rem; color: var(--warn); border: 1px dashed var(--warn); border-radius: 6px; padding: .1rem .4rem; align-self: center; }
.plan__desc { color: var(--muted); margin-top: .8rem; font-size: var(--fs-sm); }
.plan__list { margin: 1.4rem 0; display: grid; gap: .7rem; }
.plan__list li { display: flex; gap: .6rem; align-items: flex-start; font-size: var(--fs-sm); font-weight: 500; }
.plan__list .check { flex: none; width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center; background: var(--good-050); color: var(--good); }
.plan__list .check svg { width: 13px; height: 13px; }
.plan__list .muted-item { color: var(--muted-2); }
.plan__list .muted-item .check { background: rgba(8, 48, 58, .06); color: var(--muted-2); }
.plan .btn { margin-top: auto; width: 100%; }

/* Vergleichstabelle */
.compare-wrap { margin-top: 1.4rem; overflow-x: auto; border-radius: var(--r-lg); border: 1px solid var(--line); box-shadow: var(--shadow-sm); background: var(--surface); }
.compare { width: 100%; border-collapse: collapse; min-width: 560px; }
.compare caption { text-align: left; padding: 1rem 1.2rem 0; color: var(--muted); font-size: var(--fs-sm); }
.compare th, .compare td { padding: .95rem 1.2rem; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
.compare thead th { position: sticky; top: 0; background: var(--surface-2); font-family: var(--font-display); font-size: 1.02rem; }
.compare thead th:nth-child(2), .compare thead th:nth-child(3) { text-align: center; width: 22%; }
.compare tbody td:nth-child(2), .compare tbody td:nth-child(3) { text-align: center; font-weight: 600; }
.compare tbody tr:hover { background: var(--primary-050); }
.compare .col-premium { background: rgba(10, 167, 194, .05); }
.compare .feat { font-weight: 600; }
.compare .feat small { display: block; font-weight: 500; color: var(--muted); font-size: var(--fs-xs); margin-top: .15rem; }
.compare .yes { color: var(--good); }
.compare .no { color: var(--muted-2); }
.compare .val { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--primary-deep); }
.compare .catrow td { background: var(--bg-deep); font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: .12em; text-transform: uppercase; color: var(--primary-ink); }
.i-yes, .i-no { width: 22px; height: 22px; display: inline-grid; place-items: center; border-radius: 50%; }
.i-yes { background: var(--good-050); color: var(--good); }
.i-no { background: rgba(8, 48, 58, .05); color: var(--muted-2); }
.i-yes svg, .i-no svg { width: 13px; height: 13px; }

/* ----------------------------------------------------------------------------
   FAQ-Seite
   ---------------------------------------------------------------------------- */
.faq-layout { display: grid; grid-template-columns: 240px 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.faq-toc { position: sticky; top: calc(var(--header-h) + 1.2rem); display: grid; gap: .2rem; }
.faq-toc a { padding: .5rem .8rem; border-radius: var(--r-sm); color: var(--muted); font-weight: 600; font-size: var(--fs-sm); border-left: 2px solid transparent; }
.faq-toc a:hover { background: var(--primary-050); color: var(--primary-deep); }
.faq-search {
  display: flex; align-items: center; gap: .6rem; background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--r-pill); padding: .7rem 1.1rem; box-shadow: var(--shadow-xs); margin-bottom: 1.6rem;
}
.faq-search svg { width: 18px; height: 18px; color: var(--muted-2); flex: none; }
.faq-search input { border: 0; outline: 0; background: none; width: 100%; font: inherit; color: var(--ink); }
.faq-cat + .faq-cat { margin-top: 2.6rem; }
.faq-cat__title { font-size: var(--fs-h3); display: flex; align-items: center; gap: .6rem; padding-bottom: .6rem; border-bottom: 1px solid var(--line); scroll-margin-top: calc(var(--header-h) + 1rem); }
.faq-cat__title .badge { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--primary); }
.faq-item {
  border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface);
  margin-top: .8rem; box-shadow: var(--shadow-xs); overflow: hidden;
}
.faq-item[open] { border-color: var(--primary-100); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.05rem 1.25rem; cursor: pointer; font-weight: 600; list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { flex: none; width: 26px; height: 26px; border-radius: 8px; background: var(--primary-050); color: var(--primary-deep); display: grid; place-items: center; transition: transform .3s var(--ease); }
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item summary .plus svg { width: 15px; height: 15px; }
.faq-item__body { padding: 0 1.25rem 1.2rem; color: var(--muted); }
.faq-item__body p + p { margin-top: .7rem; }
.faq-empty { display: none; color: var(--muted); padding: 1.5rem 0; }

/* ----------------------------------------------------------------------------
   Quick-Start (nummerierter Stepper)
   ---------------------------------------------------------------------------- */
.steps { position: relative; display: grid; gap: clamp(1.2rem, 3vw, 2rem); }
.steps::before { content: ""; position: absolute; left: 27px; top: 12px; bottom: 12px; width: 2px; background: linear-gradient(var(--primary-100), var(--primary-100)); }
.step { position: relative; display: grid; grid-template-columns: 56px 1fr; gap: 1.2rem; align-items: start; }
.step__num {
  position: relative; z-index: 1; width: 56px; height: 56px; border-radius: 16px; flex: none;
  background: var(--surface); border: 1px solid var(--primary-100); box-shadow: var(--shadow-sm);
  display: grid; place-items: center; font-family: var(--font-mono); font-weight: 600; font-size: 1.15rem; color: var(--primary-deep);
}
.step__card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 1.3rem 1.5rem; box-shadow: var(--shadow-xs); flex: 1;
}
.step__title { font-size: var(--fs-h3); }
.step__title .opt { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--muted-2); font-weight: 500; margin-left: .5rem; letter-spacing: .04em; }
.step__text { color: var(--muted); margin-top: .5rem; }
.step__meta { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.pill { font-family: var(--font-mono); font-size: var(--fs-xs); background: var(--primary-050); color: var(--primary-ink); border-radius: var(--r-pill); padding: .3rem .7rem; }

/* ----------------------------------------------------------------------------
   Changelog (Timeline)
   ---------------------------------------------------------------------------- */
.timeline { position: relative; display: grid; gap: clamp(1.3rem, 3vw, 2.2rem); }
.timeline::before { content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px; background: var(--primary-100); }
.release { position: relative; padding-left: 2.4rem; }
.release::before { content: ""; position: absolute; left: 0; top: 6px; width: 18px; height: 18px; border-radius: 50%; background: var(--surface); border: 4px solid var(--primary); box-shadow: var(--shadow-xs); }
.release--latest::before { background: var(--primary); border-color: var(--primary-100); }
.release__head { display: flex; flex-wrap: wrap; align-items: center; gap: .8rem; }
.release__ver { font-family: var(--font-mono); font-weight: 600; font-size: 1.1rem; color: var(--primary-deep); }
.tag-latest { font-family: var(--font-mono); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .1em; color: #fff; background: var(--grad-primary); padding: .2rem .6rem; border-radius: var(--r-pill); }
.release__card { margin-top: .9rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 1.2rem 1.4rem; box-shadow: var(--shadow-xs); }
.change { display: flex; gap: .7rem; align-items: flex-start; padding: .35rem 0; }
.change + .change { border-top: 1px dashed var(--line); }
.change__tag { flex: none; font-family: var(--font-mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; padding: .22rem .5rem; border-radius: 6px; margin-top: .1rem; min-width: 84px; text-align: center; }
.tag-new { background: var(--good-050); color: #0E8A5F; }
.tag-improved { background: var(--primary-050); color: var(--primary-ink); }
.tag-fixed { background: var(--warn-050); color: #8A5A00; }

/* ----------------------------------------------------------------------------
   Prose (Impressum)
   ---------------------------------------------------------------------------- */
.prose { max-width: var(--container-narrow); }
.prose h2 { font-size: var(--fs-h3); margin-top: 2.2rem; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--ink-soft); margin-top: .8rem; }
.prose address { font-style: normal; color: var(--ink-soft); margin-top: .8rem; line-height: 1.8; }
.prose a { text-decoration: underline; text-underline-offset: 3px; }
.prose .muted { color: var(--muted); font-size: var(--fs-sm); }

/* ----------------------------------------------------------------------------
   Download-Seite
   ---------------------------------------------------------------------------- */
.dl-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(1.5rem, 5vw, 4rem); align-items: center; }
.dl-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: clamp(1.6rem, 3vw, 2.6rem); box-shadow: var(--shadow-md);
}
.dl-card h2 { font-size: var(--fs-h3); }
.dl-store { display: flex; gap: 1rem; align-items: center; padding: 1rem 0; }
.dl-store + .dl-store { border-top: 1px solid var(--line); }
.dl-store__ico { width: 48px; height: 48px; border-radius: 13px; flex: none; display: grid; place-items: center; background: var(--ink); color: #fff; }
.dl-store__ico svg { width: 26px; height: 26px; }
.dl-store__meta { flex: 1; }
.dl-store__meta b { display: block; }
.dl-store__meta span { color: var(--muted); font-size: var(--fs-sm); }
.dl-specs { margin-top: 1.4rem; display: grid; gap: .55rem; }
.dl-specs li { display: flex; gap: .6rem; align-items: center; color: var(--muted); font-size: var(--fs-sm); }
.dl-specs svg { width: 16px; height: 16px; color: var(--good); flex: none; }
.dl-device { position: relative; display: grid; place-items: center; }
.dl-device::before { content: ""; position: absolute; inset: 6%; background: radial-gradient(closest-side, rgba(20, 186, 214, .28), transparent 72%); filter: blur(28px); }
.dl-device img { width: 100%; max-width: 440px; height: auto; position: relative; filter: drop-shadow(0 34px 50px rgba(7, 84, 102, .26)); }

/* ----------------------------------------------------------------------------
   404
   ---------------------------------------------------------------------------- */
.err { min-height: 62vh; display: grid; place-items: center; text-align: center; }
.err__code { font-family: var(--font-display); font-size: clamp(5rem, 18vw, 11rem); line-height: 1; letter-spacing: -.04em; }
.err__code .text-grad { display: inline-block; }

/* ----------------------------------------------------------------------------
   Motion / Reveal
   ---------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); will-change: opacity, transform; }
.reveal.is-in { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: .08s; }
[data-reveal-delay="2"] { transition-delay: .16s; }
[data-reveal-delay="3"] { transition-delay: .24s; }
[data-reveal-delay="4"] { transition-delay: .32s; }

@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes caustics {
  0%   { transform: translate3d(0,0,0) scale(1); }
  50%  { transform: translate3d(2%, 1.5%, 0) scale(1.06); }
  100% { transform: translate3d(-1.5%, -1%, 0) scale(1.02); }
}

/* ----------------------------------------------------------------------------
   Responsive
   ---------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer__inner { grid-template-columns: 1.4fr 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed; inset: 0 0 0 auto; width: min(84vw, 340px);
    flex-direction: column; align-items: stretch; justify-content: flex-start; gap: .3rem;
    background: var(--surface); padding: calc(var(--header-h) + 1.2rem) 1.4rem 2rem;
    box-shadow: -20px 0 60px -30px rgba(7, 84, 102, .5);
    transform: translateX(100%); transition: transform .34s var(--ease); overflow-y: auto;
  }
  body.nav-open .nav { transform: none; }
  .nav > a { font-size: 1.05rem; padding: .85rem 1rem; border-radius: var(--r-sm); }
  .nav__cta { margin-left: 0; margin-top: .6rem; }
  .nav-backdrop { position: fixed; inset: 0; z-index: 90; background: rgba(8, 48, 58, .4); opacity: 0; visibility: hidden; transition: opacity .3s var(--ease); }
  body.nav-open .nav-backdrop { opacity: 1; visibility: visible; }

  .hero__grid { grid-template-columns: 1fr; text-align: left; }
  .hero__stage { max-width: 460px; margin: 1rem auto 0; }
  .feature, .ki, .teaser, .community__grid, .dl-grid { grid-template-columns: 1fr; }
  .feature--reverse .feature__media { order: 0; }
  .feature__media, .ki__media { order: -1; }
  .teaser__badge { justify-self: stretch; max-width: none; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-toc { position: static; grid-auto-flow: column; grid-auto-columns: max-content; overflow-x: auto; padding-bottom: .4rem; }
  .faq-toc a { border-left: 0; white-space: nowrap; }
}

@media (max-width: 620px) {
  .stats { grid-template-columns: repeat(2, 1fr); gap: 0; }
  .stat { padding: 1rem .5rem; }
  .stat + .stat::before { display: none; }
  .stat:nth-child(3), .stat:nth-child(4) { border-top: 1px solid var(--line); }
  .stat:nth-child(even) { border-left: 1px solid var(--line); }
  .plans { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
  .chip--1 { left: 0; } .chip--2 { right: 0; }
  .hero__actions .store-badges { justify-content: flex-start; }
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 420px) {
  .site-footer__inner { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------------------------
   Reduced Motion
   ---------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .hero__device, .chip, .hero__caustics { animation: none; }
}