/* ============================================================
   SYLVESTER DIGITAL — main.css
   ============================================================ */

/* ─── Custom Properties ─────────────────────────────────── */
:root {
  --c-deep:    #0F2912;
  --c-forest:  #1B3D1E;
  --c-green:   #2A5830;
  --c-mid:     #3A7A42;
  --c-brand:   #5AAF2A;
  --c-bright:  #7ACC44;
  --c-sage:    #A8CA84;
  --c-mint:    #D4EAC0;
  --c-cream:   #F5F2EB;
  --c-paper:   #FDFCF8;
  --c-ink:     #344050;
  --c-text:    #4A5568;
  --c-muted:   #718096;
  --c-border:  #E2E8E2;
  --c-white:   #FFFFFF;

  --font-head: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;
  --text-7xl:  4.5rem;

  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --container: 1200px;
  --container-narrow: 800px;
  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow:    0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);

  --transition:      200ms ease;
  --transition-slow: 400ms ease;
  --header-h: 72px;
}

/* ─── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--c-ink);
  background: var(--c-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
ul, ol { list-style: none; }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-head); font-weight: 600; line-height: 1.2; color: var(--c-ink); }
p { color: var(--c-text); }
input, textarea, select { font: inherit; }

/* ─── Accessibility ─────────────────────────────────────── */
.skip-link {
  position: absolute; top: -100%; left: var(--space-4);
  background: var(--c-brand); color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius); font-weight: 600; z-index: 9999;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--space-4); }
:focus-visible { outline: 2px solid var(--c-brand); outline-offset: 3px; border-radius: var(--radius-sm); }

/* ─── Layout ────────────────────────────────────────────── */
.container {
  width: min(100%, var(--container));
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.container--narrow {
  width: min(100%, var(--container-narrow));
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.section        { padding-block: var(--space-24); }
.section--sm    { padding-block: var(--space-16); }
.section--lg    { padding-block: var(--space-32); }

/* ─── Typography utilities ──────────────────────────────── */
.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-brand);
  margin-bottom: var(--space-3);
}
.heading-xl { font-size: clamp(var(--text-4xl), 6vw, var(--text-7xl)); font-weight: 300; letter-spacing: -0.02em; }
.heading-lg { font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl)); font-weight: 400; letter-spacing: -0.02em; }
.heading-md { font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl)); font-weight: 400; }
.heading-sm { font-size: clamp(var(--text-xl),  2vw, var(--text-3xl)); font-weight: 500; }
.lead       { font-size: clamp(var(--text-base), 1.5vw, var(--text-xl)); line-height: 1.75; color: var(--c-text); }
.text-center  { text-align: center; }
.text-muted   { color: var(--c-muted); }
.text-brand   { color: var(--c-brand); }
.text-white   { color: #fff; }

/* ─── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius); font-size: var(--text-base);
  font-weight: 600; line-height: 1; transition: all var(--transition); white-space: nowrap;
}
.btn--primary { background: var(--c-brand); color: #fff; }
.btn--primary:hover { background: var(--c-mid); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(90,175,42,.35); }
.btn--outline { background: transparent; color: var(--c-brand); border: 2px solid var(--c-brand); }
.btn--outline:hover { background: var(--c-brand); color: #fff; transform: translateY(-1px); }
.btn--ghost-white { background: rgba(255,255,255,.1); color: #fff; border: 2px solid rgba(255,255,255,.35); backdrop-filter: blur(4px); }
.btn--ghost-white:hover { background: rgba(255,255,255,.2); border-color: rgba(255,255,255,.6); transform: translateY(-1px); }
.btn--lg { padding: var(--space-4) var(--space-8); font-size: var(--text-lg); border-radius: var(--radius-lg); }
.btn--sm { padding: var(--space-2) var(--space-4); font-size: var(--text-sm); }
.btn-group { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }

/* ─── Header / Navigation ───────────────────────────────── */
.site-header {
  position: fixed; top: 0; inset-inline: 0;
  z-index: 100; height: var(--header-h);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header--scrolled {
  background: rgba(27,61,30,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,255,255,.08);
}
.site-header--light.site-header--scrolled {
  background: rgba(253,252,248,.97);
  box-shadow: var(--shadow-sm);
}
.nav {
  height: 100%; display: flex; align-items: center;
  justify-content: space-between; gap: var(--space-8);
}
.nav__logo img { height: 40px; width: auto; }
.nav__links { display: flex; align-items: center; gap: var(--space-1); }
.nav__links a {
  padding: var(--space-2) var(--space-3); border-radius: var(--radius);
  font-size: var(--text-sm); font-weight: 500; color: rgba(255,255,255,.85);
  transition: color var(--transition), background var(--transition);
}
.nav__links a:hover, .nav__links a.active { color: #fff; background: rgba(255,255,255,.1); }
.site-header--light.site-header--scrolled .nav__links a { color: var(--c-ink); }
.site-header--light.site-header--scrolled .nav__links a:hover,
.site-header--light.site-header--scrolled .nav__links a.active { color: var(--c-forest); background: var(--c-mint); }
.nav__links .btn--sm { background: var(--c-brand); color: #fff; }
.nav__links .btn--sm:hover { background: var(--c-mid); transform: none; box-shadow: none; }
.nav__burger {
  display: none; width: 40px; height: 40px; align-items: center;
  justify-content: center; flex-direction: column; gap: 5px;
  border-radius: var(--radius); padding: var(--space-2);
  transition: background var(--transition);
}
.nav__burger:hover { background: rgba(255,255,255,.1); }
.nav__burger-bar {
  width: 22px; height: 2px; background: #fff; border-radius: 2px;
  transition: all var(--transition); transform-origin: center;
}
.site-header--light.site-header--scrolled .nav__burger-bar { background: var(--c-ink); }
.nav__burger[aria-expanded="true"] .nav__burger-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] .nav__burger-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__burger[aria-expanded="true"] .nav__burger-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Hero ──────────────────────────────────────────────── */
.hero {
  min-height: 100svh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--c-deep) 0%, var(--c-forest) 45%, var(--c-green) 100%);
  position: relative; overflow: hidden; padding-top: var(--header-h);
}
.hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 80% 80% at 110% 50%, rgba(90,175,42,.09) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at -10% 80%, rgba(90,175,42,.05) 0%, transparent 60%);
}
.hero::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 60px, rgba(255,255,255,.015) 60px, rgba(255,255,255,.015) 61px),
    repeating-linear-gradient(90deg,  transparent, transparent 60px, rgba(255,255,255,.015) 60px, rgba(255,255,255,.015) 61px);
}
.hero__content { position: relative; z-index: 1; padding-block: var(--space-20); }
.hero__title {
  font-size: clamp(2.5rem, 6vw, 5.5rem); font-weight: 300; color: #fff;
  letter-spacing: -0.03em; line-height: 1.05; margin-bottom: var(--space-6); max-width: 14ch;
}
.hero__title em { font-style: italic; color: var(--c-bright); }
.hero__subtitle {
  font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
  color: rgba(255,255,255,.72); max-width: 50ch; line-height: 1.75; margin-bottom: var(--space-10);
}
.hero__scroll-hint {
  position: absolute; bottom: var(--space-8); left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  color: rgba(255,255,255,.35); font-size: var(--text-xs); letter-spacing: 0.1em;
  text-transform: uppercase; animation: bounce 2.5s ease infinite;
}
.hero__scroll-hint svg { width: 18px; height: 18px; }
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(7px); }
}

/* ─── Page hero (non-home) ──────────────────────────────── */
.page-hero {
  background: linear-gradient(135deg, var(--c-deep) 0%, var(--c-forest) 100%);
  padding: calc(var(--header-h) + var(--space-16)) 0 var(--space-16);
  position: relative; overflow: hidden;
}
.page-hero::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 80% 120% at 90% 50%, rgba(90,175,42,.07) 0%, transparent 60%);
}
.page-hero__content { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl)); font-weight: 300; letter-spacing: -0.02em; margin-bottom: var(--space-4); }
.page-hero p  { color: rgba(255,255,255,.7); font-size: clamp(var(--text-base), 1.5vw, var(--text-xl)); max-width: 55ch; }

/* ─── Cards ─────────────────────────────────────────────── */
.card {
  background: var(--c-paper); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--c-border); transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card__body { padding: var(--space-6); }
.card__tag {
  display: inline-block; background: var(--c-mint); color: var(--c-green);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 3px 10px; border-radius: 999px; margin-bottom: var(--space-3);
}

/* ─── Feature grid ──────────────────────────────────────── */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-6); }
.feature-item { display: flex; flex-direction: column; gap: var(--space-3); }
.feature-item__icon {
  width: 48px; height: 48px; background: var(--c-mint); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center; color: var(--c-green); flex-shrink: 0;
}
.feature-item__icon svg { width: 24px; height: 24px; }
.feature-item h3 { font-size: var(--text-lg); font-weight: 600; font-family: var(--font-body); }
.feature-item p  { font-size: var(--text-sm); line-height: 1.65; }

/* ─── Dark strip / quote band ───────────────────────────── */
.strip { background: var(--c-forest); padding-block: var(--space-12); }
.strip__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-8); flex-wrap: wrap;
}
.strip__text {
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-3xl));
  font-family: var(--font-head); font-weight: 300; font-style: italic;
  color: rgba(255,255,255,.9); max-width: 40ch;
}
.strip__text strong { font-weight: 600; font-style: normal; color: var(--c-bright); }

/* ─── Product teaser (home) ─────────────────────────────── */
.product-teaser { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); align-items: center; }
.product-teaser__screens {
  display: flex; justify-content: center; align-items: flex-end;
  gap: var(--space-4); position: relative;
}
.phone-frame {
  position: relative; border-radius: 32px; overflow: hidden;
  box-shadow: var(--shadow-xl); border: 3px solid rgba(0,0,0,.09); background: #000;
}
.phone-frame img { display: block; width: 100%; height: auto; }
.phone-frame--main { width: 200px; z-index: 2; }
.phone-frame--secondary { width: 170px; transform: translateY(24px); opacity: .82; }
.product-teaser__meta { display: flex; flex-direction: column; gap: var(--space-6); }
.product-teaser__name { font-size: var(--text-sm); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-brand); }

/* ─── News grid ─────────────────────────────────────────── */
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--space-6); }
.news-card { display: flex; flex-direction: column; }
.news-card__body { flex: 1; display: flex; flex-direction: column; padding: var(--space-6); }
.news-card__date { font-size: var(--text-xs); color: var(--c-muted); margin-bottom: var(--space-3); font-weight: 500; letter-spacing: 0.06em; }
.news-card__title { font-size: var(--text-xl); font-weight: 500; margin-bottom: var(--space-3); line-height: 1.3; }
.news-card__excerpt { font-size: var(--text-sm); color: var(--c-text); line-height: 1.65; flex: 1; margin-bottom: var(--space-4); }
.link-arrow { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); font-weight: 600; color: var(--c-brand); transition: gap var(--transition); }
.link-arrow:hover { gap: var(--space-3); }
.link-arrow svg { width: 16px; height: 16px; transition: transform var(--transition); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ─── Divider ───────────────────────────────────────────── */
.divider { height: 1px; background: var(--c-border); margin-block: var(--space-12); }

/* ─── Dark section ──────────────────────────────────────── */
.section--dark { background: var(--c-forest); }
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p  { color: rgba(255,255,255,.72); }
.section--dark .eyebrow { color: var(--c-bright); }

/* ─── Highlight block ───────────────────────────────────── */
.highlight-block {
  background: linear-gradient(135deg, var(--c-forest) 0%, var(--c-green) 100%);
  border-radius: var(--radius-xl); padding: var(--space-12); position: relative; overflow: hidden;
}
.highlight-block::before {
  content: ''; position: absolute; top: -50%; right: -20%;
  width: 400px; height: 400px; border-radius: 50%; pointer-events: none;
  background: radial-gradient(ellipse, rgba(122,204,68,.12) 0%, transparent 70%);
}
.highlight-block h2, .highlight-block h3 { color: #fff; }
.highlight-block p   { color: rgba(255,255,255,.75); }
.highlight-block .eyebrow { color: var(--c-bright); }

/* ─── Screenshots (Vitals) ──────────────────────────────── */
.screenshots { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-6); align-items: end; }
.screenshot-item { text-align: center; }
.screenshot-frame {
  border-radius: 24px; overflow: hidden; box-shadow: var(--shadow-xl);
  background: #fff; margin-bottom: var(--space-3);
  border: 1px solid rgba(0,0,0,.06);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}
.screenshot-frame:hover { transform: translateY(-8px) scale(1.02); box-shadow: 0 24px 64px rgba(0,0,0,.18); }
.screenshot-frame img { width: 100%; height: auto; display: block; }
.screenshot-item__label { font-size: var(--text-sm); color: var(--c-muted); font-weight: 500; }

/* ─── Forms ─────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-label { font-size: var(--text-sm); font-weight: 600; color: var(--c-ink); }
.form-label span { color: var(--c-muted); font-weight: 400; margin-left: 4px; }
.form-input, .form-textarea, .form-select {
  width: 100%; padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--c-border); border-radius: var(--radius);
  background: var(--c-paper); color: var(--c-ink); font-size: var(--text-base);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none; border-color: var(--c-brand);
  box-shadow: 0 0 0 3px rgba(90,175,42,.15);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--c-muted); }
.form-textarea { min-height: 160px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.hp-field { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.alert {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-4) var(--space-5); border-radius: var(--radius);
  font-size: var(--text-sm); line-height: 1.6;
}
.alert--success { background: var(--c-mint); border: 1px solid var(--c-sage); color: var(--c-green); }
.alert--error   { background: #fef2f2; border: 1px solid #fca5a5; color: #b91c1c; }
.alert svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 1px; }

/* ─── Footer ────────────────────────────────────────────── */
.site-footer { background: var(--c-deep); color: rgba(255,255,255,.65); padding-top: var(--space-16); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-10); padding-bottom: var(--space-12); }
.footer__brand img { height: 34px; width: auto; margin-bottom: var(--space-4); opacity: .9; }
.footer__brand p   { font-size: var(--text-sm); color: rgba(255,255,255,.5); line-height: 1.7; max-width: 30ch; }
.footer__col h4    { font-family: var(--font-body); font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,.4); margin-bottom: var(--space-4); }
.footer__col ul    { display: flex; flex-direction: column; gap: var(--space-2); }
.footer__col a     { font-size: var(--text-sm); color: rgba(255,255,255,.6); transition: color var(--transition); }
.footer__col a:hover { color: rgba(255,255,255,.95); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.07); padding-block: var(--space-6);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-4);
}
.footer__bottom p   { font-size: var(--text-xs); color: rgba(255,255,255,.35); }
.footer__bottom a   { color: rgba(255,255,255,.35); text-decoration: underline; text-underline-offset: 3px; transition: color var(--transition); }
.footer__bottom a:hover { color: rgba(255,255,255,.7); }

/* ─── Breadcrumb ────────────────────────────────────────── */
.breadcrumb { display: flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); color: rgba(255,255,255,.5); margin-bottom: var(--space-6); }
.breadcrumb a { color: rgba(255,255,255,.5); transition: color var(--transition); }
.breadcrumb a:hover { color: rgba(255,255,255,.9); }
.breadcrumb__sep { opacity: .4; }

/* ─── Values grid (About) ───────────────────────────────── */
.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-6); }
.value-item {
  padding: var(--space-6); background: var(--c-paper);
  border-radius: var(--radius-lg); border: 1px solid var(--c-border);
  transition: border-color var(--transition), transform var(--transition);
}
.value-item:hover { border-color: var(--c-sage); transform: translateY(-3px); }
.value-item__number { font-family: var(--font-head); font-size: var(--text-4xl); font-weight: 300; color: var(--c-mint); line-height: 1; margin-bottom: var(--space-4); }
.value-item h3 { font-size: var(--text-lg); font-weight: 600; font-family: var(--font-body); margin-bottom: var(--space-2); }
.value-item p  { font-size: var(--text-sm); line-height: 1.65; }

/* ─── Product card (Products index) ────────────────────── */
.product-card {
  display: grid; grid-template-columns: 220px 1fr; gap: var(--space-10); align-items: center;
  padding: var(--space-10); background: var(--c-paper);
  border-radius: var(--radius-xl); border: 1px solid var(--c-border);
  transition: box-shadow var(--transition);
}
.product-card:hover { box-shadow: var(--shadow-lg); }
.product-card__logo {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 1; background: linear-gradient(135deg, #FEE2E2 0%, #FFF1F0 100%);
  border-radius: var(--radius-xl);
}
.product-card__logo svg { width: 80px; height: 80px; }
.product-card__meta { display: flex; flex-direction: column; gap: var(--space-3); }
.product-card__name { font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl)); font-weight: 400; letter-spacing: -0.01em; }
.product-card__desc { font-size: var(--text-base); color: var(--c-text); line-height: 1.7; max-width: 60ch; }
.product-card__tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-2); }
.tag { display: inline-block; font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.06em; padding: 3px 10px; border-radius: 999px; }
.tag--green { background: var(--c-mint); color: var(--c-green); }
.tag--grey  { background: #F3F4F6; color: #6B7280; }

/* ─── Scroll reveal ─────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* ─── 404 ───────────────────────────────────────────────── */
.not-found {
  min-height: 100svh; display: flex; align-items: center;
  background: linear-gradient(135deg, var(--c-deep) 0%, var(--c-forest) 100%);
}
.not-found__content { text-align: center; }
.not-found__code { font-family: var(--font-head); font-size: clamp(6rem, 20vw, 16rem); font-weight: 300; color: rgba(255,255,255,.07); line-height: 1; margin-bottom: calc(-1 * var(--space-8)); }
.not-found__title { color: #fff; font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl)); margin-bottom: var(--space-4); }
.not-found p { color: rgba(255,255,255,.6); max-width: 40ch; margin-inline: auto; margin-bottom: var(--space-8); }

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .product-teaser { grid-template-columns: 1fr; }
  .product-teaser__screens { order: -1; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .product-card { grid-template-columns: 180px 1fr; gap: var(--space-8); padding: var(--space-8); }
}
@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .nav__burger { display: flex; }
  .nav__links {
    position: fixed; top: var(--header-h); inset-inline: 0; bottom: 0;
    flex-direction: column; align-items: flex-start; padding: var(--space-6);
    gap: var(--space-1); background: var(--c-forest);
    transform: translateX(100%); transition: transform var(--transition-slow);
    overflow-y: auto; z-index: 99;
  }
  .nav__links.open { transform: translateX(0); }
  .nav__links a { width: 100%; padding: var(--space-3) var(--space-4); font-size: var(--text-base); border-radius: var(--radius); }
  .nav__links .btn--sm { margin-top: var(--space-4); width: 100%; justify-content: center; padding: var(--space-4); font-size: var(--text-base); border-radius: var(--radius); }
  .site-header--light .nav__links { background: var(--c-paper); }
  .site-header--light .nav__links a { color: var(--c-ink); }
  .site-header--light .nav__links a:hover { background: var(--c-mint); color: var(--c-forest); }
  .form-grid { grid-template-columns: 1fr; }
  .product-card { grid-template-columns: 1fr; }
  .product-card__logo { max-width: 160px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .screenshots { grid-template-columns: repeat(2, 1fr); }
  .phone-frame--main { width: 155px; }
  .phone-frame--secondary { width: 135px; }
}
@media (max-width: 480px) {
  .container { padding-inline: var(--space-4); }
  .section { padding-block: var(--space-16); }
  .section--lg { padding-block: var(--space-20); }
  .footer__grid { grid-template-columns: 1fr; }
  .product-teaser__screens { flex-direction: column; align-items: center; }
  .phone-frame--secondary { transform: none; opacity: 1; width: 155px; }
  .hero__scroll-hint { display: none; }
  .highlight-block { padding: var(--space-8); }
}
@media print {
  .site-header, .site-footer, .hero__scroll-hint, .nav__burger { display: none; }
  body { background: white; color: black; }
}