/* ============================================================
   franki.ch — "Terminal Elegance" (Hybrid A+B)
   Token-System, Mobile-First, prefers-reduced-motion-Respekt
   ============================================================ */

/* ---------- Fonts (optional, Fallback = Systemstack) ---------- */
@font-face { font-family: 'Inter'; src: url('/assets/fonts/inter-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Inter'; src: url('/assets/fonts/inter-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('/assets/fonts/jetbrains-mono-400.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'JetBrains Mono'; src: url('/assets/fonts/jetbrains-mono-700.woff2') format('woff2'); font-weight: 700; font-display: swap; }

/* ---------- Design-Tokens ---------- */
:root {
  --bg: #0a0e14;
  --bg-elev: #0d131c;
  --surface: #101622;
  --line: #1c2536;
  --line-strong: #2a3650;
  --text: #e6edf3;
  --text-dim: #8b98ab;
  --accent: #00e5ff;
  --accent-2: #7c3aed;
  --accent-3: #f72585;
  --grad: linear-gradient(135deg, var(--accent), var(--accent-2));
  --on-accent: #061016;

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', 'SF Mono', Consolas, monospace;

  --space-1: .25rem; --space-2: .5rem; --space-3: 1rem;
  --space-4: 1.5rem; --space-5: 2.5rem; --space-6: 4rem; --space-7: 6.5rem;

  --radius-s: 6px; --radius: 10px; --radius-l: 16px;
  --shadow: 0 10px 40px rgb(0 0 0 / .45);
  --glow: 0 0 24px rgb(0 229 255 / .18);
  --header-h: 64px;
  --wrap: 1160px;
  --wrap-narrow: 760px;
  --dur: .55s;
  --ease: cubic-bezier(.22, .8, .28, 1);

  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-elev: #eef1f6;
  --surface: #ffffff;
  --line: #dbe2ec;
  --line-strong: #b9c5d6;
  --text: #101622;
  --text-dim: #5a6a80;
  --accent: #0092c9;
  --accent-2: #6d28d9;
  --accent-3: #d61f74;
  --on-accent: #ffffff;
  --shadow: 0 10px 32px rgb(16 22 34 / .12);
  --glow: 0 0 24px rgb(0 146 201 / .22);
  color-scheme: light;
}

/* ---------- Reset / Basis ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: clip;
}
img, picture, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
.mono { font-family: var(--font-mono); }
.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.wrap--narrow { width: min(100% - 2.5rem, var(--wrap-narrow)); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.skip-link {
  position: absolute; left: -999px; top: 8px; z-index: 200;
  background: var(--accent); color: var(--on-accent);
  padding: .5rem 1rem; border-radius: var(--radius-s);
}
.skip-link:focus { left: 8px; }

::selection { background: var(--accent); color: var(--on-accent); }

/* ---------- Scroll-Progress ---------- */
.progress { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 120; pointer-events: none; }
.progress__bar { height: 100%; width: 0; background: var(--grad); transition: width .08s linear; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.brand { display: inline-flex; align-items: baseline; gap: .55rem; color: var(--text); font-weight: 700; letter-spacing: .01em; }
.brand:hover { text-decoration: none; }
.brand__mark { font-family: var(--font-mono); color: var(--accent); font-weight: 400; }
.nav__list { display: flex; align-items: center; gap: 1.75rem; list-style: none; padding: 0; }
.nav__list a { color: var(--text-dim); font-size: .95rem; transition: color .2s; position: relative; }
.nav__list a:hover, .nav__list a[aria-current="page"] { color: var(--text); text-decoration: none; }
.nav__list a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px;
  background: var(--grad); border-radius: 2px;
}
.nav__toggle { display: none; }
.theme-toggle { color: var(--text-dim); padding: .4rem; border-radius: var(--radius-s); line-height: 0; transition: color .2s; }
.theme-toggle:hover { color: var(--accent); }
:root[data-theme="light"] .icon-moon { display: none; }
:root:not([data-theme="light"]) .icon-sun { display: none; }

@media (max-width: 720px) {
  .nav__toggle {
    display: grid; gap: 5px; padding: .6rem; z-index: 110;
  }
  .nav__toggle span { width: 22px; height: 2px; background: var(--text); transition: transform .3s var(--ease), opacity .2s; }
  .nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav__list {
    position: fixed; inset: 0; z-index: 105;
    flex-direction: column; justify-content: center; gap: 2.2rem;
    background: color-mix(in srgb, var(--bg) 96%, transparent);
    backdrop-filter: blur(10px);
    transform: translateY(-100%); transition: transform .4s var(--ease);
  }
  .nav__list.is-open { transform: translateY(0); }
  .nav__list a { font-size: 1.4rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: calc(100svh - var(--header-h));
  display: flex; align-items: center; overflow: clip;
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(color-mix(in srgb, var(--line) 26%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--line) 26%, transparent) 1px, transparent 1px);
  background-size: 34px 34px;
}
.hero__aurora { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .8; pointer-events: none; }
.hero__inner { position: relative; padding-block: var(--space-7); }
.hero__overline { color: var(--accent); font-size: .95rem; letter-spacing: .06em; margin-bottom: var(--space-3); }
.hero__title {
  font-size: clamp(2.6rem, 7.5vw, 5.2rem);
  line-height: 1.05; letter-spacing: -.02em; font-weight: 700;
  margin-bottom: var(--space-4);
}
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.cursor { display: inline-block; width: .55ch; height: .95em; margin-left: .1ch; background: var(--accent); vertical-align: text-bottom; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero__sub { max-width: 34rem; color: var(--text-dim); font-size: 1.15rem; margin-bottom: var(--space-5); }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-6); }
.hero__scroll {
  position: absolute; bottom: 1.2rem; left: 50%; transform: translateX(-50%);
  color: var(--text-dim); font-size: .8rem; animation: floaty 2.4s ease-in-out infinite;
}
@keyframes floaty { 50% { transform: translate(-50%, 6px); } }

.stats { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.stat { display: grid; gap: .1rem; padding: var(--space-3) var(--space-4); border: 1px solid var(--line); border-radius: var(--radius); background: color-mix(in srgb, var(--surface) 55%, transparent); min-width: 8.5rem; }
.stat__num { font-size: 2rem; font-weight: 700; color: var(--accent); line-height: 1.1; }
.stat__label { color: var(--text-dim); font-size: .85rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .8rem 1.6rem; border-radius: var(--radius-s);
  font-weight: 700; font-size: .98rem; letter-spacing: .01em;
  transition: transform .2s var(--ease), box-shadow .3s, background .2s, color .2s, border-color .2s;
  will-change: transform;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(.98); }
.btn--primary { background: var(--accent); color: var(--on-accent); }
.btn--primary:hover { box-shadow: var(--glow); }
.btn--ghost { border: 1px solid var(--line-strong); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Sektionen ---------- */
.section { padding-block: var(--space-7); border-bottom: 1px solid var(--line); }
.section--tight { padding-block: var(--space-5) var(--space-7); border-bottom: 0; }
.section:last-of-type { border-bottom: 0; }
.section__overline { color: var(--accent); font-size: .9rem; letter-spacing: .06em; margin-bottom: var(--space-2); }
.section__title { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -.01em; margin-bottom: var(--space-5); }
.section__more { margin-top: var(--space-5); text-align: center; }

.page-head { padding-block: var(--space-6) var(--space-3); }
.page-head__title { font-size: clamp(2.2rem, 6vw, 3.6rem); letter-spacing: -.02em; margin-block: var(--space-2) var(--space-3); }
.page-head--error { padding-block: var(--space-7); }
.glitch { font-size: clamp(4rem, 18vw, 9rem); color: var(--accent); text-shadow: 3px 0 var(--accent-3), -3px 0 var(--accent-2); }

/* ---------- Karten-Grid ---------- */
.grid { display: grid; gap: var(--space-4); }
.grid--cards { grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); }
.grid--featured { grid-template-columns: repeat(auto-fit, minmax(min(420px, 100%), 1fr)); }
.grid--cats { grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }

.card {
  border: 1px solid var(--line); border-radius: var(--radius-l);
  background: var(--surface); overflow: clip;
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.card:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: var(--glow), var(--shadow); }
.card__link { display: flex; flex-direction: column; height: 100%; color: inherit; }
.card__link:hover { text-decoration: none; }
.card__media { aspect-ratio: 16 / 9; overflow: clip; background: var(--bg-elev); }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.card:hover .card__media img { transform: scale(1.04); }
.card__body { display: flex; flex-direction: column; gap: .6rem; padding: var(--space-4); flex: 1; }
.card__meta { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; }
.badge {
  font-size: .72rem; text-transform: uppercase; letter-spacing: .1em;
  color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  padding: .15rem .55rem; border-radius: 99px;
}
.card__date { color: var(--text-dim); font-size: .8rem; }
.card__title { font-size: 1.2rem; line-height: 1.35; letter-spacing: -.01em; }
.card--big .card__title { font-size: 1.5rem; }
.card__excerpt {
  color: var(--text-dim); font-size: .95rem;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.card__cta { margin-top: auto; padding-top: .4rem; color: var(--accent); font-size: .85rem; opacity: 0; transform: translateX(-6px); transition: opacity .3s, transform .3s var(--ease); }
.card:hover .card__cta { opacity: 1; transform: translateX(0); }

/* ---------- Kategorie-Kacheln ---------- */
.cat-tile {
  display: grid; gap: .35rem; padding: var(--space-5);
  border: 1px solid var(--line); border-radius: var(--radius-l);
  background: var(--surface); color: inherit; position: relative; overflow: clip;
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.cat-tile::before {
  content: ""; position: absolute; inset: 0; opacity: 0;
  background: radial-gradient(60% 80% at 20% 0%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 70%);
  transition: opacity .4s;
}
.cat-tile:hover { text-decoration: none; transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--glow); }
.cat-tile:hover::before { opacity: 1; }
.cat-tile__icon { font-size: 1.6rem; color: var(--accent); }
.cat-tile__name { font-size: 1.3rem; font-weight: 700; }
.cat-tile__desc { color: var(--text-dim); }
.cat-tile__count { color: var(--accent); font-size: .8rem; margin-top: .4rem; }

/* ---------- Masonry / Galerie ---------- */
.masonry { columns: 2; column-gap: var(--space-3); }
@media (min-width: 700px)  { .masonry { columns: 3; } }
@media (min-width: 1100px) { .masonry { columns: 4; } }
.masonry--preview { columns: 2; }
@media (min-width: 700px) { .masonry--preview { columns: 4; } }
.masonry__item {
  display: block; margin-bottom: var(--space-3); border-radius: var(--radius);
  overflow: clip; border: 1px solid var(--line); break-inside: avoid; position: relative;
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.masonry__item:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--glow); }
.masonry__item img { width: 100%; transition: transform .6s var(--ease); }
.masonry__item:hover img { transform: scale(1.035); }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 150;
  display: flex; align-items: center; justify-content: center;
  background: rgb(4 6 10 / .92); backdrop-filter: blur(8px);
}
.lightbox[hidden] { display: none; }
.lightbox__img { max-width: min(92vw, 1400px); max-height: 84vh; border-radius: var(--radius-s); box-shadow: var(--shadow); }
.lightbox__caption { position: absolute; bottom: 1.2rem; left: 50%; transform: translateX(-50%); color: var(--text-dim); font-size: .85rem; }
.lightbox__close, .lightbox__prev, .lightbox__next {
  position: absolute; color: var(--text); font-size: 2.2rem; line-height: 1;
  padding: .5rem .9rem; border-radius: var(--radius-s); transition: color .2s, background .2s;
}
.lightbox__close:hover, .lightbox__prev:hover, .lightbox__next:hover { color: var(--accent); background: rgb(255 255 255 / .06); }
.lightbox__close { top: 1rem; right: 1rem; }
.lightbox__prev { left: .6rem; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: .6rem; top: 50%; transform: translateY(-50%); }

/* ---------- Artikel ---------- */
.post__head { padding-block: var(--space-6) var(--space-4); }
.post__meta { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; color: var(--text-dim); font-size: .85rem; margin-bottom: var(--space-3); }
.post__updated { color: var(--text-dim); }
.post__title { font-size: clamp(2rem, 5.5vw, 3.4rem); line-height: 1.12; letter-spacing: -.02em; margin-bottom: var(--space-3); }
.post__excerpt { color: var(--text-dim); font-size: 1.15rem; max-width: 40rem; }
.post__tags { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: var(--space-3); }
.tag { color: var(--accent-2); font-size: .8rem; }
:root[data-theme="light"] .tag { color: var(--accent-2); }
.post__cover { margin-top: var(--space-5); border-radius: var(--radius-l); overflow: clip; border: 1px solid var(--line); }
.post__cover img { width: 100%; will-change: transform; }
.post__body { padding-block: var(--space-5); }
.post__footer { padding-block: 0 var(--space-7); }

/* ---------- Prose (gerendertes Markdown) ---------- */
.prose h2, .prose h3 { margin: 2.2em 0 .7em; letter-spacing: -.01em; }
.prose h2 { font-size: 1.6rem; }
.prose h3 { font-size: 1.25rem; }
.prose p { margin-block: 1em; }
.prose ul, .prose ol { margin-block: 1em; padding-left: 1.4em; }
.prose li { margin-block: .35em; }
.prose li::marker { color: var(--accent); }
.prose a { text-decoration: underline; text-underline-offset: 3px; }
.prose blockquote { border-left: 3px solid var(--accent); padding-left: 1.2rem; color: var(--text-dim); margin-block: 1.4em; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin-block: 2.5em; }
.prose code {
  font-family: var(--font-mono); font-size: .88em;
  background: var(--surface); border: 1px solid var(--line);
  padding: .12em .4em; border-radius: 5px; color: var(--accent);
}
.prose pre {
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.3rem; overflow-x: auto; margin-block: 1.4em;
}
.prose pre code { background: none; border: 0; padding: 0; color: var(--text); font-size: .9rem; line-height: 1.6; }
.post-figure { margin-block: 1.8em; }
.post-figure img { border-radius: var(--radius); border: 1px solid var(--line); }
.post-figure figcaption { color: var(--text-dim); font-size: .85rem; margin-top: .6rem; font-family: var(--font-mono); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-elev); }
.site-footer__inner { display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; padding-block: var(--space-5); }
.site-footer__brand { font-weight: 700; }
.site-footer__claim { color: var(--text-dim); font-size: .8rem; font-weight: 400; margin-top: .4rem; max-width: 26rem; }
.site-footer__nav { display: flex; gap: 1.4rem; flex-wrap: wrap; list-style: none; padding: 0; }
.site-footer__nav a { color: var(--text-dim); font-size: .9rem; }
.site-footer__nav a:hover { color: var(--accent); }
.site-footer__meta { padding-block: 0 var(--space-4); color: var(--text-dim); font-size: .78rem; }
.link-dim { color: var(--text-dim); }
.link-dim:hover { color: var(--accent); }

/* ---------- Reveal-Animationen (JS setzt .is-visible) ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- View Transitions (Cross-Document) ---------- */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vt-out .28s ease both; }
::view-transition-new(root) { animation: vt-in .34s ease both; }
@keyframes vt-out { to { opacity: 0; transform: translateY(-8px); } }
@keyframes vt-in { from { opacity: 0; transform: translateY(10px); } }

/* ---------- Reduced Motion: alles Wesentliche abschalten ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .cursor { animation: none; }
  .hero__scroll { animation: none; }
  ::view-transition-old(root), ::view-transition-new(root) { animation: none; }
}

/* ---------- Druck ---------- */
@media print {
  .site-header, .site-footer, .progress, .hero__aurora, .lightbox { display: none !important; }
  body { background: #fff; color: #000; }
}