:root {
  --bg: #0b0f1a;
  --bg-2: #101626;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-solid: rgba(11, 15, 26, 0.92);
  --border: rgba(255, 255, 255, 0.14);
  --text: #e8ebf5;
  --muted: #b3bbd0;
  --accent: #67e8f9;
  --accent-hover: #a5f3fc;
  --accent-2: #c084fc;
  --accent-3: #f472b6;
  --ink: #0b0f1a;
  --danger: #fda4af;
  --danger-border: #fb7185;
  --success: #86efac;
  --grad: linear-gradient(135deg, #22d3ee 0%, #a855f7 55%, #f472b6 100%);
  --s1: 4px;
  --s2: 8px;
  --s3: 16px;
  --s4: 24px;
  --s5: 40px;
  --s6: 64px;
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 60px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(1000px 600px at 5% -10%, rgba(34, 211, 238, 0.16), transparent 60%),
    radial-gradient(800px 500px at 95% 5%, rgba(168, 85, 247, 0.18), transparent 60%),
    radial-gradient(700px 500px at 50% 110%, rgba(244, 114, 182, 0.12), transparent 60%),
    var(--bg);
}

body.nav-open { overflow: hidden; }

main { flex: 1; }

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

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-hover); }

h1, h2, h3, h4, h5, h6, .brand, .brand__name, .site-nav, .site-footer, .card__link { overflow-wrap: anywhere; }

h1, h2, h3 { line-height: 1.15; margin: 0 0 var(--s3); letter-spacing: -0.01em; color: #ffffff; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 var(--s3); }
ul, ol { margin: 0 0 var(--s3); padding-left: 1.25rem; }
li { margin-bottom: var(--s2); }
address { font-style: normal; }
code { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: 0.9em; background: rgba(255, 255, 255, 0.08); color: #f1f5f9; padding: 2px 6px; border-radius: 6px; overflow-wrap: anywhere; }

[hidden] { display: none !important; }

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

.skip-link {
  position: absolute;
  left: var(--s3);
  top: -100px;
  z-index: 200;
  padding: var(--s2) var(--s3);
  background: var(--accent);
  color: var(--ink);
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus { top: var(--s3); color: var(--ink); }

.container { width: min(1120px, calc(100% - 32px)); margin-inline: auto; }

.eyebrow {
  display: inline-block;
  margin: 0 0 var(--s3);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.lead { font-size: 1.125rem; color: var(--muted); max-width: 62ch; }

/* Glass */
.glass {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}
@supports ((-webkit-mask-composite: xor) or (mask-composite: exclude)) {
  .glass::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--grad);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask-composite: exclude;
    opacity: 0.55;
    pointer-events: none;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--grad);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}
.btn:hover { color: var(--ink); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(168, 85, 247, 0.35); }
.btn:focus-visible { color: var(--ink); }
.btn--ghost { background: rgba(255, 255, 255, 0.07); color: var(--text); border-color: var(--border); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.14); color: #ffffff; box-shadow: none; }
.btn--ghost:focus-visible { color: var(--text); }
.btn--small { padding: 8px 14px; font-size: 0.875rem; }

/* Header */
.site-header {
  height: var(--header-h);
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 26, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.site-header__inner { height: 100%; display: flex; align-items: center; gap: var(--s3); }
.site-header__inner > * { min-width: 0; }

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; }
.brand:hover { color: #ffffff; }
.brand__mark { flex-shrink: 0; }
.brand__name { font-size: 1rem; line-height: 1.1; }

.site-nav { flex: 1; display: flex; justify-content: center; }
.site-nav__list { display: flex; gap: var(--s4); list-style: none; margin: 0; padding: 0; }
.site-nav__list li { margin: 0; }
.site-nav a { display: inline-block; padding: 8px 4px; color: var(--text); text-decoration: none; font-weight: 500; }
.site-nav a:hover { color: var(--accent); }
.site-nav__close { display: none; }

.header-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  margin-left: auto;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--text); border-radius: 2px; }

/* Hero */
.hero { padding: var(--s6) 0; }
.hero__inner { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: var(--s5); align-items: center; }
.hero__inner > * { min-width: 0; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s3); margin-top: var(--s4); }
.hero__stats { padding: var(--s4); }

.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s4); }
.stat { display: flex; flex-direction: column; min-width: 0; }
.stat__value { font-size: 2.25rem; font-weight: 800; line-height: 1; color: var(--accent); }
.stat__label { margin-top: 12px; color: var(--muted); font-size: 0.9375rem; }

/* Sections */
.section { padding: var(--s6) 0; }
.section__head { max-width: 760px; margin-bottom: var(--s5); }
.section__foot { margin-top: var(--s5); color: var(--muted); }

/* Cards: glass overlay */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: var(--s4); }
.card-grid > * { min-width: 0; }
.card {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: 460px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-2);
}
.card__image {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  opacity: 0.85;
}
.card__panel {
  position: relative;
  width: 100%;
  margin: var(--s3);
  padding: var(--s4);
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(11, 15, 26, 0.82);
  color: var(--text);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover .card__panel { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(34, 211, 238, 0.18); }
.card__panel > * + * { margin-top: var(--s4); }
.card__panel p { margin-bottom: 0; color: var(--muted); }
.card__panel h3 { margin: 0; font-size: 1.375rem; }
.card__tag { display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent-2); }
.card__link { color: #ffffff; text-decoration: none; }
.card__link:hover { color: var(--accent); }
.card__meta { display: flex; flex-wrap: wrap; gap: var(--s2) var(--s3); font-size: 0.875rem; color: var(--muted); }
.card__meta span + span::before { content: "·"; margin-right: var(--s3); color: var(--accent-3); }

/* Features */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: var(--s4); }
.feature-grid > * { min-width: 0; }
.feature { padding: var(--s4); }
.feature__icon { margin-bottom: var(--s4); }
.feature h3 { margin-bottom: var(--s3); }
.feature p { margin: 0; color: var(--muted); }

/* Book hero */
.book-hero, .page-hero { padding: var(--s6) 0 0; }
.book-hero__inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--s5); align-items: center; }
.book-hero__inner > * { min-width: 0; }
.chips { display: flex; flex-wrap: wrap; gap: var(--s2); list-style: none; margin: var(--s4) 0 0; padding: 0; }
.chips li { margin: 0; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.06); color: var(--text); font-size: 0.875rem; }
.book-cover-frame { margin: 0; padding: var(--s2); }
.book-cover-image { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: calc(var(--radius) - 6px); }
.book-cover-frame figcaption { padding: var(--s3) var(--s3) var(--s2); font-size: 0.875rem; color: var(--muted); }
.cover-image--salt-cartographers { object-position: center 40%; }
.cover-image--quiet-machines-dream { object-position: center 50%; }
.cover-image--lagrange-point-blues { object-position: center 45%; }
.cover-image--archive-of-unfinished-suns { object-position: center 35%; }
.cover-image--meridian-drift { object-position: center 55%; }

/* Article layout */
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: var(--s5); align-items: start; }
.article-layout > * { min-width: 0; }
.article { max-width: 72ch; }
.article h2 { margin-top: var(--s5); font-size: 1.625rem; }
.article h2:first-of-type { margin-top: var(--s4); }
.article p { color: var(--text); }
.article-aside { position: sticky; top: var(--s4); }
.aside-card { padding: var(--s4); }
.aside-card__title { font-size: 1.25rem; margin-bottom: var(--s4); }
.aside-card .btn { width: 100%; margin-top: var(--s4); }

.specs { margin: 0; display: grid; gap: var(--s3); }
.specs > div { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: var(--s3); padding-bottom: var(--s3); border-bottom: 1px solid var(--border); }
.specs > div:last-child { border-bottom: 0; padding-bottom: 0; }
.specs dt { color: var(--muted); font-size: 0.875rem; }
.specs dd { margin: 0; color: #ffffff; font-weight: 600; }

.pros-cons { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: var(--s4); margin: var(--s5) 0; }
.pros-cons > * { min-width: 0; }
.pros-cons__col { padding: var(--s4); }
.pros-cons__col h3 { margin-bottom: var(--s3); }
.pros-cons__col ul { margin: 0; }
.pros-cons__col li { color: var(--text); }

.pager { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: var(--s4); margin-top: var(--s6); }
.pager > * { min-width: 0; }
.pager__link { display: flex; flex-direction: column; gap: var(--s2); padding: var(--s4); text-decoration: none; color: var(--text); transition: transform 0.2s ease; }
.pager__link:hover { color: #ffffff; transform: translateY(-3px); }
.pager__label { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.pager__title { font-weight: 700; font-size: 1.125rem; }

/* Legal */
.legal-article { padding: var(--s5); max-width: 860px; }
.legal-article h2 { font-size: 1.375rem; margin-top: var(--s5); }
.legal-article h2:first-child { margin-top: 0; }
.legal-article p, .legal-article li { color: var(--text); }
.table-wrap { overflow-x: auto; margin: var(--s4) 0; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.cookie-table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
.cookie-table caption { text-align: left; padding: var(--s3); color: var(--muted); font-size: 0.875rem; }
.cookie-table th, .cookie-table td { padding: 12px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
.cookie-table th { background: rgba(255, 255, 255, 0.06); color: #ffffff; font-weight: 700; }
.cookie-table tbody tr:last-child td { border-bottom: 0; }

/* Contact */
.contact-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--s5); align-items: start; }
.contact-layout > * { min-width: 0; }
.contact-form-panel { padding: var(--s5); }
.contact-form-panel h2 { margin-bottom: var(--s4); }
.field { margin-bottom: var(--s4); }
.field label { display: block; margin-bottom: var(--s2); font-weight: 600; color: #ffffff; }
.field input[type="text"], .field input[type="email"], .field select, .field textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font: inherit;
}
.field select option { background: var(--bg-2); color: var(--text); }
.field textarea { resize: vertical; min-height: 140px; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: rgba(255, 255, 255, 0.3); }
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea { border-color: var(--danger-border); }
.field__error { margin: var(--s2) 0 0; font-size: 0.875rem; color: var(--danger); }
.check { display: flex; gap: 12px; align-items: flex-start; font-weight: 500; color: var(--text); }
.check input { margin-top: 5px; width: 18px; height: 18px; flex-shrink: 0; accent-color: #a855f7; }
.field--check label { font-weight: 500; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s3) var(--s4); margin-top: var(--s4); }
.form-note { margin: 0; font-size: 0.875rem; color: var(--muted); }
.form-status { margin-top: var(--s4); padding: var(--s3) var(--s4); border-radius: var(--radius-sm); }
.form-status--error { background: rgba(251, 113, 133, 0.12); border: 1px solid var(--danger-border); color: var(--danger); }
.form-status--success { background: rgba(134, 239, 172, 0.1); border: 1px solid rgba(134, 239, 172, 0.5); color: var(--text); }
.form-status--success h3 { color: var(--success); margin-bottom: var(--s2); }
.form-status--success p { margin: 0; }

.contact-info { display: grid; gap: var(--s4); }
.contact-card { padding: var(--s4); }
.contact-card h2 { font-size: 1.375rem; margin-bottom: var(--s4); }
.contact-address { margin-bottom: var(--s4); color: var(--text); }
.contact-details { margin: 0; display: grid; gap: var(--s3); }
.contact-details > div { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: var(--s3); }
.contact-details dt { color: var(--muted); font-size: 0.875rem; }
.contact-details dd { margin: 0; overflow-wrap: anywhere; }
.contact-note { color: var(--muted); font-size: 0.9375rem; margin: 0; }

.map-block {
  position: relative;
  min-height: 280px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px) 0 0 / 40px 40px,
    radial-gradient(300px 200px at 60% 45%, rgba(244, 114, 182, 0.18), transparent 70%),
    #101626;
  display: flex;
  align-items: flex-end;
}
.map-block__roads { position: absolute; inset: 0; width: 100%; height: 100%; border-radius: inherit; }
.map-block__pin { position: absolute; left: 50%; top: 40%; transform: translate(-50%, -100%); filter: drop-shadow(0 8px 16px rgba(244, 114, 182, 0.45)); }
.map-block__label {
  position: relative;
  margin: var(--s3);
  padding: var(--s2) var(--s3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(11, 15, 26, 0.85);
  color: var(--text);
  font-size: 0.875rem;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

/* Footer */
.site-footer { margin-top: var(--s6); padding: var(--s6) 0 var(--s4); border-top: 1px solid var(--border); background: rgba(6, 9, 18, 0.85); }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--s5); }
.site-footer__grid > * { min-width: 0; }
.site-footer__brand p { color: var(--muted); margin: var(--s4) 0; }
.site-footer__brand address { color: var(--muted); line-height: 1.7; }
.site-footer__title { font-size: 0.875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: var(--s3); }
.site-footer__nav ul { list-style: none; margin: 0; padding: 0; }
.site-footer__nav li { margin-bottom: var(--s2); }
.site-footer__nav a { color: var(--text); text-decoration: none; }
.site-footer__nav a:hover { color: var(--accent); text-decoration: underline; }
.site-footer__bottom { margin-top: var(--s5); padding-top: var(--s4); border-top: 1px solid var(--border); }
.site-footer__bottom p { margin: 0; font-size: 0.875rem; color: var(--muted); }

/* Cookie banner */
.cookie-banner { position: fixed; left: var(--s3); right: var(--s3); bottom: var(--s3); z-index: 100; display: flex; justify-content: center; }
.cookie-banner__inner { width: 100%; max-width: 960px; padding: var(--s4); background: var(--panel-solid); color: var(--text); }
.cookie-banner__text { margin: 0 0 var(--s4); font-size: 0.9375rem; }
.cookie-banner__prefs { display: flex; flex-wrap: wrap; gap: var(--s3) var(--s4); margin-bottom: var(--s4); padding: var(--s3); border-radius: var(--radius-sm); background: rgba(255, 255, 255, 0.05); color: var(--text); }
.cookie-banner__option { display: inline-flex; align-items: center; gap: var(--s2); font-size: 0.9375rem; }
.cookie-banner__option input { width: 18px; height: 18px; accent-color: #a855f7; }
.cookie-banner__actions { display: flex; flex-wrap: wrap; gap: var(--s2) var(--s3); }

/* Responsive */
@media (max-width: 1023px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-aside { position: static; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
}

@media (min-width: 900px) {
  .card--featured { grid-column: span 2; }
}

@media (max-width: 767px) {
  :root { --header-h: 50px; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: none;
    flex-direction: column;
    justify-content: flex-start;
    padding: 72px var(--s4) var(--s4);
    background: rgba(11, 15, 26, 0.97);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
  }
  .site-nav.is-open { display: flex; }
  .site-nav__close { display: inline-flex; position: absolute; top: var(--s3); right: var(--s3); }
  .site-nav__list { flex-direction: column; gap: var(--s3); }
  .site-nav a { font-size: 1.5rem; padding: var(--s2) 0; }
  .hero__inner, .book-hero__inner, .contact-layout { grid-template-columns: 1fr; }
  .hero, .section, .book-hero, .page-hero { padding-top: var(--s5); padding-bottom: var(--s5); }
  .book-hero, .page-hero { padding-bottom: 0; }
  .section { padding: var(--s6) 0; }
  .legal-article, .contact-form-panel { padding: var(--s4); }
  .card { min-height: 420px; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .specs > div, .contact-details > div { grid-template-columns: 1fr; gap: var(--s1); }
}

@media (max-width: 599px) {
  .header-cta { display: none; }
}

@media (max-width: 399px) {
  .container { width: calc(100% - 24px); }
  h1 { font-size: 1.75rem; }
  .lead { font-size: 1rem; }
  .brand__name { font-size: 0.8125rem; }
  .btn { padding: 10px 16px; }
  .stats { grid-template-columns: 1fr; }
  .stat__value { font-size: 1.875rem; }
  .card { min-height: 380px; }
  .card__panel { margin: var(--s2); }
  .cookie-banner { left: var(--s2); right: var(--s2); bottom: var(--s2); }
  .cookie-banner__inner { padding: var(--s3) var(--s3) var(--s4); }
  .cookie-banner__actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}