/*
  Modern look (docs/decisions.md, decision 13): warm off-white background,
  teal as the primary colour, rust for actions and accents, Lilita One for
  headings and the system font for text. Colours, type, spacing and radii are
  tokens on :root, so a future design system can replace this block without
  touching the rules below.
*/

@font-face {
  font-family: "Lilita One";
  src: url("../fonts/lilita-one.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Primary: teal */
  --teal-50: #eef8f7;
  --teal-100: #d5eeeb;
  --teal-300: #7fcac3;
  --teal-600: #13807d;
  --teal-700: #0f6b69;
  --teal-900: #0b3a3b;

  /* Accent: rust */
  --rust-100: #f8e4da;
  --rust-400: #e07a4f;
  --rust-600: #b8532e;
  --rust-700: #99421f;

  --color-bg: #fbfaf8;
  --color-surface: #ffffff;
  --color-text: #172b2c;
  --color-muted: #566b6c;
  --color-heading: var(--teal-900);
  --color-primary: var(--teal-700);
  --color-accent: var(--rust-600);
  --color-accent-hover: var(--rust-700);
  --color-on-accent: #ffffff;
  --color-border: rgba(11, 58, 59, 0.1);
  --color-header-bg: rgba(251, 250, 248, 0.85);
  --color-hero-a: var(--teal-100);
  --color-hero-b: var(--rust-100);
  --color-footer-bg: var(--teal-900);
  --color-footer-text: #c4e3e0;

  --shadow-sm: 0 1px 2px rgba(11, 58, 59, 0.06), 0 2px 8px rgba(11, 58, 59, 0.05);
  --shadow-lg: 0 4px 10px rgba(11, 58, 59, 0.06), 0 18px 40px rgba(11, 58, 59, 0.12);

  --font-heading: "Lilita One", ui-rounded, system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-base: 1.0625rem;
  --line-height: 1.65;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;
  --space-7: 6rem;

  --radius-sm: 10px;
  --radius: 20px;
  --radius-lg: 32px;
  --content-width: 68rem;
  --prose-width: 44rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0c1a1b;
    --color-surface: #132728;
    --color-text: #e3efee;
    --color-muted: #9db4b3;
    --color-heading: #e9f6f4;
    --color-primary: var(--teal-300);
    --color-accent: #c85f35;
    --color-accent-hover: var(--rust-400);
    --color-border: rgba(160, 220, 214, 0.12);
    --color-header-bg: rgba(12, 26, 27, 0.8);
    --color-hero-a: rgba(19, 128, 125, 0.35);
    --color-hero-b: rgba(184, 83, 46, 0.25);
    --color-footer-bg: #081213;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.45);
  }
}

/* Base */

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

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

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: 0.005em;
  color: var(--color-heading);
}

a { color: var(--color-primary); text-underline-offset: 0.18em; }
a:hover { color: var(--color-accent); }
img { max-width: 100%; height: auto; }

:focus-visible { outline: 3px solid var(--rust-400); outline-offset: 3px; border-radius: 4px; }

.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}
@media (min-width: 48rem) { .container { padding-inline: var(--space-5); } }

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

.skip-link { position: absolute; left: -999px; }
.skip-link:focus { left: var(--space-3); top: var(--space-3); z-index: 10; background: var(--color-surface); padding: var(--space-2) var(--space-3); }

.button {
  display: inline-flex;
  align-items: center;
  padding: 0.7em 1.4em;
  border-radius: 999px;
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 6px 16px -6px rgba(184, 83, 46, 0.6);
  transition: background-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.button:hover { background: var(--color-accent-hover); color: var(--color-on-accent); transform: translateY(-1px); box-shadow: 0 10px 20px -8px rgba(184, 83, 46, 0.7); }
.button:active { transform: none; }

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--color-header-bg);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-4);
  padding-block: var(--space-3);
}
.site-header__brand {
  margin-right: auto;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--color-primary);
  text-decoration: none;
}
.site-header__brand:hover { color: var(--color-primary); }

.site-nav ul, .lang-switch ul, .site-footer__links {
  display: flex; flex-wrap: wrap; list-style: none; margin: 0; padding: 0;
}
.site-nav ul { gap: var(--space-1); }
.site-nav a {
  display: block;
  padding: 0.35em 0.85em;
  border-radius: 999px;
  color: var(--color-text);
  font-weight: 600;
  text-decoration: none;
}
.site-nav a:hover { background: var(--teal-50); color: var(--teal-700); }
.site-nav a[aria-current="page"] { color: var(--color-primary); box-shadow: inset 0 -2px 0 var(--color-accent); border-radius: 0; }

.lang-switch ul {
  padding: 3px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.85rem;
}
.lang-switch a, .lang-switch span {
  display: block;
  padding: 0.2em 0.8em;
  border-radius: 999px;
  color: var(--color-muted);
  font-weight: 600;
  text-decoration: none;
}
.lang-switch [aria-current] { background: var(--color-primary); color: var(--color-bg); }

/* Narrow screens: brand and language on one row, the menu below. */
@media (max-width: 40rem) {
  .site-header__inner { padding-block: var(--space-2); }
  .site-nav { order: 3; width: 100%; margin-left: -0.85em; }
}

@media (prefers-color-scheme: dark) {
  .site-nav a:hover { background: rgba(127, 202, 195, 0.12); color: var(--teal-300); }
}

/* Main and footer */

main { flex: 1; padding-block: var(--space-5) var(--space-7); }

.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  font-size: 0.9rem;
}
.site-footer__inner {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--space-3);
  padding-block: var(--space-5);
}
.site-footer__inner p { margin: 0; }
.site-footer a { color: #ffffff; }
.site-footer a:hover { color: var(--rust-100); }
.site-footer__links { gap: var(--space-4); }

/* Home */

.hero {
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-6);
  padding: clamp(2.5rem, 7vw, 5.5rem) clamp(1.5rem, 5vw, 4rem);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 12%, var(--color-hero-b), transparent 42%),
    radial-gradient(circle at 8% 100%, var(--color-hero-a), transparent 55%),
    var(--color-surface);
  border: 1px solid var(--color-border);
}
.hero h1 {
  max-width: 14ch;
  margin: 0 0 var(--space-4);
  font-size: clamp(2.6rem, 7.5vw, 5rem);
}
.hero__lead { max-width: var(--prose-width); margin: 0; font-size: clamp(1.1rem, 2.2vw, 1.35rem); color: var(--color-muted); }

main > h2 {
  margin: 0 0 var(--space-4);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}
main > h2::after {
  content: "";
  display: block;
  width: 3rem;
  height: 4px;
  margin-top: var(--space-2);
  border-radius: 2px;
  background: var(--color-accent);
}

/* Pages */

.page { max-width: var(--prose-width); }
.page > h1 { margin: 0 0 var(--space-4); font-size: clamp(2.2rem, 6vw, 3.4rem); }

.panel, .app-page__content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.page__body { padding: var(--space-2) clamp(1.25rem, 4vw, 2.5rem) var(--space-3); }
.page__body h2 { margin: var(--space-4) 0 var(--space-2); font-size: 1.6rem; color: var(--color-primary); }
.page__body li::marker, .app-page__content li::marker { color: var(--color-accent); }

/* Apps */

.app-icon {
  display: inline-block;
  flex: none;
  border-radius: 22%;
  overflow: hidden;
  line-height: 0;
  box-shadow: 0 8px 20px -8px rgba(11, 58, 59, 0.45);
}
.app-icon img { display: block; }

.app-list { display: grid; gap: var(--space-4); grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); }

.app-card {
  display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.app-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.app-card__icon img { width: 80px; height: 80px; }
.app-card__title { margin: 0; font-size: 2rem; }
.app-card__title a { color: inherit; text-decoration: none; }
.app-card__body { display: flex; flex-direction: column; flex: 1; width: 100%; }
.app-card__tagline { flex: 1; margin: var(--space-2) 0 var(--space-4); color: var(--color-muted); font-size: 1.1rem; }
.app-card__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4); margin: 0; }
.app-card__actions a:not(.button) { font-weight: 700; text-decoration: none; }
.app-card__actions a:not(.button)::after { content: " →"; }

.app-page { max-width: var(--prose-width); }
.app-page__header {
  display: flex; flex-wrap: wrap; gap: var(--space-4); align-items: center;
  margin-bottom: var(--space-5);
}
.app-page__icon img { width: 112px; height: 112px; }
.app-page__header h1 { margin: 0; font-size: clamp(2.6rem, 7vw, 4rem); }
.app-page__tagline { margin: var(--space-2) 0 var(--space-4); font-size: 1.2rem; color: var(--color-muted); }

.app-page__content { padding: var(--space-2) clamp(1.25rem, 4vw, 2.5rem); }

/* Screenshots: phone-shaped frames in a row that scrolls sideways on small screens. */
.screenshots { margin-top: var(--space-5); }
.screenshots h2 { margin: 0 0 var(--space-3); font-size: 1.8rem; }
.screenshots__list {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: min(15rem, 70vw);
  gap: var(--space-4);
  margin: 0;
  padding: var(--space-2) var(--space-1) var(--space-4);
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}
.screenshot { margin: 0; scroll-snap-align: start; }
.screenshot img {
  display: block;
  width: 100%;
  height: auto;
  border: 6px solid var(--teal-900);
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
  background: var(--color-surface);
}
.screenshot figcaption { margin-top: var(--space-3); font-size: 0.9rem; color: var(--color-muted); }

/* Facts as small tiles */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
}
.facts > div {
  padding: var(--space-3) var(--space-4);
  background: var(--teal-50);
  border-radius: var(--radius-sm);
}
.facts dt { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-muted); }
.facts dd { margin: var(--space-1) 0 0; font-weight: 600; color: var(--teal-900); }

@media (prefers-color-scheme: dark) {
  .facts > div { background: rgba(127, 202, 195, 0.08); }
  .facts dd { color: var(--color-heading); }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}