/* ==========================================================================
   Rabe Marketing — Platzhalter-Onepager
   Layout durchgehend mittig ausgerichtet.
   ========================================================================== */

:root {
  --ink:        #0a0a0a;
  --ink-soft:   #444444;
  --ink-mute:   #767676;
  --paper:      #ffffff;
  --paper-alt:  #f4f4f2;
  --line:       #e2e2de;
  --accent:      #d97757;   /* Claude-Orange */
  --accent-deep: #b8532f;   /* abgedunkelt für kleine Schrift auf Weiß */
  --dot:         #dcdbd5;   /* Punktraster im Hero */

  --wrap:       1120px;
  --radius:     2px;

  --font-sans: "Helvetica Neue", Helvetica, Arial, system-ui, -apple-system,
               "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --step: clamp(4rem, 9vw, 8rem);
}

/* --- Reset -------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

/* Zentrierte Ausrichtung für alle Inhaltsbereiche */
main,
.site-footer,
.mobile-nav { text-align: center; }

h1, h2, h3 {
  margin: 0 0 .5em;
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

h1 { font-size: clamp(2.3rem, 6vw, 4.1rem); text-wrap: balance; }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); margin-bottom: .6em; }
h3 { font-size: 1.2rem; letter-spacing: -0.01em; }

p { margin: 0 0 1.1em; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: .75rem 1.25rem;
  z-index: 999;
}
.skip-link:focus { left: 0; }

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

/* --- Header ------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
}

.brand-mark { width: 34px; height: 34px; }

.brand-text {
  font-size: 1.02rem;
  letter-spacing: .01em;
  font-weight: 400;
}
.brand-text strong { font-weight: 800; }

.nav {
  display: flex;
  gap: 1.9rem;
  margin-left: auto;
}

.header-inner .theme-toggle { margin-left: 1.6rem; }

.nav a {
  position: relative;
  text-decoration: none;
  padding: .25rem 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  transition: color .2s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s cubic-bezier(.2, .7, .3, 1);
}

.nav a:hover { color: var(--accent-deep); }
.nav a:hover::after { transform: scaleX(1); }

/* Burger mit Beschriftung */
.nav-toggle {
  display: none;
  min-height: 44px;
  padding: 0 .1rem;
  border: 0;
  background: none;
  cursor: pointer;
  flex-direction: row;
  align-items: center;
  gap: .6rem;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.nav-toggle-label { line-height: 1; }

.nav-toggle-icon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 22px;
}

.nav-toggle-icon span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  transition: transform .25s ease, opacity .2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-icon span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.mobile-nav a {
  padding: 1rem clamp(1.25rem, 5vw, 2.5rem);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  font-size: 1.05rem;
}

/* --- Hero --------------------------------------------------------------- */

.hero {
  position: relative;
  padding: clamp(3.5rem, 9vw, 7rem) 0 var(--step);
  background:
    radial-gradient(120% 80% at 50% -10%, var(--paper-alt) 0%, var(--paper) 60%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

/* Feines Punktraster, nach unten ausblendend */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--dot) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 75%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 75%);
  pointer-events: none;
}

.hero-inner { position: relative; z-index: 1; }

.hero-inner {
  max-width: 1040px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-mark {
  width: clamp(80px, 14vw, 128px);
  height: auto;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 1.2rem;
}

.accent { color: var(--accent); }

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 62ch;
  margin-top: 1.6rem;
  margin-inline: auto;
}
.lead strong { color: var(--ink); font-weight: 700; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .85rem;
  margin-top: 2.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .95rem 1.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--ink);
  font-size: .96rem;
  font-weight: 600;
  letter-spacing: .01em;
  text-decoration: none;
  transition: transform .2s ease, background-color .2s ease, color .2s ease;
}

.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-2px); }

.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }

/* Hinweiszeile: Akzent oben statt links, damit sie mittig funktioniert */
.notice {
  margin: 2.6rem auto 0;
  padding-top: 1rem;
  max-width: 46ch;
  border-top: 2px solid var(--accent);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--ink-mute);
}

/* --- Sections ----------------------------------------------------------- */

.section { padding: var(--step) 0; }

.section-dark {
  background: var(--ink);
  color: var(--paper);
}
.section-dark .eyebrow { color: rgba(255, 255, 255, .55); }
.section-dark .lead { color: rgba(255, 255, 255, .72); }

/* --- Cards -------------------------------------------------------------- */

/* Immer zwei Karten nebeneinander — kein angebrochenes Raster */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 3rem;
}

.card {
  position: relative;
  overflow: hidden;
  contain: paint;
  background: var(--paper);
  padding: clamp(2.25rem, 3.5vw, 3rem) clamp(1.75rem, 3vw, 2.5rem) clamp(1.75rem, 3vw, 2.5rem);
  transition: background-color .25s ease, transform .25s cubic-bezier(.2, .7, .3, 1);
}

.card:hover { background: var(--paper-alt); transform: translateY(-3px); }

/* Konturziffer, vollstaendig sichtbar in der Ecke */
.card-no {
  position: absolute;
  top: clamp(1rem, 2vw, 1.4rem);
  right: clamp(1.1rem, 2.2vw, 1.6rem);
  font-family: var(--font-sans);
  font-size: clamp(2.8rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
  opacity: .4;
  z-index: 0;
  pointer-events: none;
  user-select: none;
  transition: opacity .35s ease, transform .45s cubic-bezier(.2, .7, .3, 1);
}

.card:hover .card-no {
  opacity: 1;
  transform: translateY(3px);
}

.card h3 { margin-top: .2rem; }

.card p {
  margin: 0 auto;
  max-width: 44ch;
  color: var(--ink-soft);
  font-size: .97rem;
}
.card p strong { color: var(--ink); font-weight: 700; }

/* --- Tags --------------------------------------------------------------- */

.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .6rem;
  padding: 0;
  margin: 2.5rem 0 0;
}

.tags li {
  padding: .5rem 1.05rem;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .03em;
  transition: border-color .2s ease, background-color .2s ease;
}

.tags li:hover {
  border-color: var(--accent);
  background: rgba(217, 119, 87, .16);
}

/* --- Kontakt ------------------------------------------------------------ */

.contact-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(2.5rem, 5vw, 3.5rem);
}

.contact-copy { max-width: 640px; }
.contact-copy .lead { margin-top: 1rem; }

.contact-card {
  font-style: normal;
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  padding: clamp(1.75rem, 3vw, 2.25rem);
  background: var(--paper-alt);
}

.contact-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 1.6rem;
  line-height: 1.3;
}
.contact-name span { font-weight: 400; color: var(--ink-soft); }

.contact-list { margin: 0; }

.contact-list dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 1.1rem;
}
.contact-list dt:first-child { margin-top: 0; }

.contact-list dd {
  margin: .25rem 0 0;
  font-size: 1.02rem;
}

.contact-list a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: border-color .2s ease, color .2s ease;
}
.contact-list a:hover { color: var(--accent-deep); border-color: var(--accent); }

/* --- Impressum / Rechtstexte -------------------------------------------- */

.legal { padding: clamp(3rem, 8vw, 6rem) 0 var(--step); }

.legal-inner {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.legal-title { font-size: clamp(2.2rem, 5vw, 3.4rem); }

.legal-block {
  width: 100%;
  margin-top: clamp(2.25rem, 4vw, 3rem);
  padding-top: clamp(2.25rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
}

.legal-block h2 {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  letter-spacing: -0.01em;
  margin-bottom: .9rem;
}

.legal-block p {
  margin: 0 auto 1rem;
  max-width: 60ch;
  color: var(--ink-soft);
  font-size: .97rem;
}
.legal-block p:last-child { margin-bottom: 0; }

.legal-block a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .2s ease, border-color .2s ease;
}
.legal-block a:hover { color: var(--accent-deep); border-color: var(--accent); }

.legal-mono {
  display: inline-block;
  margin-top: .3rem;
  font-family: var(--font-mono);
  font-size: 1.02rem;
  letter-spacing: .06em;
  color: var(--ink);
}

.back-link {
  margin-top: 3rem;
  font-size: .95rem;
}
.back-link a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color .2s ease, border-color .2s ease;
}
.back-link a:hover { color: var(--accent-deep); border-color: var(--accent); }

/* --- Footer ------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
  font-size: .87rem;
  color: var(--ink-mute);
}

.footer-inner p { margin: 0; }
.footer-note { margin-top: .4rem; font-size: .82rem; }
.footer-note a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .2s ease, border-color .2s ease;
}
.footer-note a:hover { color: var(--accent-deep); border-color: var(--accent); }

/* --- Reveal-Animation --------------------------------------------------- */

.reveal:not(.is-visible),
.stack-group:not(.is-visible) .tags li { will-change: opacity, transform; }

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s cubic-bezier(.2, .7, .3, 1),
              transform .7s cubic-bezier(.2, .7, .3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}


/* --- Inline-Links im Fließtext ------------------------------------------ */

.ilink {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
  transition: color .2s ease, background-color .2s ease;
}
.ilink:hover { color: var(--accent-deep); }

.section-dark .ilink { color: var(--paper); }
.section-dark .ilink:hover { color: var(--accent-deep); }

/* Verlinkte Stack-Tags */
.tags a {
  text-decoration: none;
  color: inherit;
  display: block;
  margin: -.5rem -1.05rem;
  padding: .5rem 1.05rem;
}

/* --- Stack-Gruppen ------------------------------------------------------ */

.stack-groups {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 4vw, 3rem);
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}

.stack-label {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .55);
  margin: 0 0 1.1rem;
}

.stack-label a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.stack-label a:hover { border-bottom-color: var(--accent); }

.stack-group .tags { margin-top: 0; }

.stack-source {
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: rgba(255, 255, 255, .4);
}

/* Ungerade letzte Stack-Gruppe über beide Spalten, sonst hängt sie schief */
.stack-group:last-child:nth-child(odd) { grid-column: 1 / -1; }


/* Markenrechtlicher Hinweis im Footer.
   .footer-inner p setzt margin:0 — deshalb hier mit gleicher Spezifität zentrieren. */
.footer-inner .footer-legal {
  max-width: 78ch;
  margin: 1.6rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  font-size: .74rem;
  line-height: 1.6;
  color: var(--ink-mute);
}

/* Verhindert die Trennung am Bindestrich, z. B. "KI-Modellen" */
.nobreak { white-space: nowrap; }

/* Aktiver Abschnitt in der Navigation */
.nav a.is-active { color: var(--accent-deep); }
.nav a.is-active::after { transform: scaleX(1); }
.mobile-nav a.is-active { color: var(--accent-deep); }

/* Leuchtspur, die dem Zeiger ueber die ganze Seite nachlaeuft */
.pointer-trail {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 300;
  opacity: 0;
  transition: opacity .5s ease;
}

.pointer-trail.is-on { opacity: 1; }

.pointer-trail span {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 50%;
  background: radial-gradient(circle,
              rgba(224, 138, 104, .85) 0%,
              rgba(224, 138, 104, .35) 45%,
              transparent 70%);
  will-change: transform;
}

/* Auf Touch-Geraeten gibt es keinen Zeiger */
@media (hover: none) {
  .pointer-trail { display: none; }
}

/* Headline: jedes Wort einen Hauch spaeter */
.hero h1.is-split { opacity: 1; transform: none; }

.hero h1 .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .65s ease, transform .65s cubic-bezier(.2, .7, .3, 1);
  will-change: opacity, transform;
}

.hero h1.is-visible .word { opacity: 1; transform: none; }

/* Feine Koernung — nimmt den Flaechen das Digitale */
.grain {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 250;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

:root[data-theme="dark"] .grain { opacity: .07; }

/* Zurueck zum Anfang */
.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 150;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink-soft);
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px) scale(.9);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s cubic-bezier(.2, .7, .3, 1),
              color .2s ease, border-color .2s ease;
}

.to-top.is-on {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.to-top:hover {
  color: var(--accent-deep);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.to-top svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Markierter Text in der Akzentfarbe */
::selection {
  background: var(--accent);
  color: #fff;
}

/* ==========================================================================
   Bewegung — ausschliesslich transform und opacity, damit nichts nachrechnen muss
   ========================================================================== */

/* 1. Hero: Logo kommt eine Spur aus der Tiefe */
.hero-mark.reveal { transform: translateY(18px) scale(.94); }
.hero-mark.reveal.is-visible { transform: none; }
.hero-mark { transition: transform .9s cubic-bezier(.2, .7, .3, 1), opacity .9s ease; }

/* 2. Karten heben sich beim Ueberfahren an — siehe .card weiter oben */

/* 3. Stack-Bubbles perlen gestaffelt ein */
.stack-group .tags li {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .45s ease, transform .45s cubic-bezier(.2, .7, .3, 1);
}

/* Rand- und Flaechenwechsel erst nach dem Einblenden, beim Ueberfahren */
.stack-group.is-visible .tags li {
  transition: opacity .45s ease, transform .45s cubic-bezier(.2, .7, .3, 1),
              border-color .2s ease, background-color .2s ease;
}
.stack-group.is-visible .tags li { opacity: 1; transform: none; }
.stack-group.is-visible .tags li:nth-child(1) { transition-delay: 60ms; }
.stack-group.is-visible .tags li:nth-child(2) { transition-delay: 100ms; }
.stack-group.is-visible .tags li:nth-child(3) { transition-delay: 140ms; }
.stack-group.is-visible .tags li:nth-child(4) { transition-delay: 180ms; }
.stack-group.is-visible .tags li:nth-child(5) { transition-delay: 220ms; }
.stack-group.is-visible .tags li:nth-child(6) { transition-delay: 260ms; }
.stack-group.is-visible .tags li:nth-child(7) { transition-delay: 300ms; }
.stack-group.is-visible .tags li:nth-child(8) { transition-delay: 340ms; }
.stack-group.is-visible .tags li:nth-child(9) { transition-delay: 380ms; }

/* 4. Lesefortschritt: eine Linie am oberen Rand */
.progress {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  z-index: 200;
  will-change: transform;
  pointer-events: none;
}

/* Akzentstrich unter den Sektionsueberschriften */
.has-rule::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin: 1.4rem auto 0;
  background: var(--accent);
  border-radius: 2px;
}

/* Hinweis, dass es weitergeht */
.scroll-hint {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: .7rem;
  margin-top: clamp(3rem, 6vw, 4.5rem);
  text-decoration: none;
  color: var(--ink-mute);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  transition: color .2s ease;
}

.scroll-hint:hover { color: var(--accent-deep); }

.scroll-hint-arrow {
  width: 1px;
  height: 34px;
  background: linear-gradient(to bottom, var(--line), var(--accent));
  animation: hint 2.4s cubic-bezier(.4, 0, .2, 1) infinite;
  transform-origin: top;
}

@keyframes hint {
  0%, 100% { transform: scaleY(.45); opacity: .5; }
  50%      { transform: scaleY(1);   opacity: 1; }
}


/* Umschalter fuer das Erscheinungsbild */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, transform .2s ease;
}

.theme-toggle:hover {
  color: var(--accent-deep);
  border-color: var(--accent);
  transform: rotate(12deg);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Hell: Mond anbieten (= in den Dunkelmodus wechseln). Dunkel: Sonne. */
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* Farbwechsel nur waehrend des Umschaltens — sonst laeuft er bei jedem
   Einblenden und Ueberfahren mit und erzwingt Neuzeichnen. */
:root.theme-anim,
:root.theme-anim body,
:root.theme-anim .site-header,
:root.theme-anim .section-dark,
:root.theme-anim .card,
:root.theme-anim .contact-card {
  transition: background-color .3s ease, color .3s ease, border-color .3s ease;
}

/* Abschnitte als Bezugsrahmen (fuer absolut positionierte Kinder) */
.section { position: relative; }

/* ==========================================================================
   Dunkelmodus — folgt der Systemeinstellung, der Umschalter im Kopf gewinnt
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink:         #eceae4;
    --ink-soft:    #b4b1a8;
    --ink-mute:    #8b887f;
    --paper:       #121211;
    --paper-alt:   #1c1c19;
    --line:        #2e2e29;
    --accent:      #e08a68;
    --accent-deep: #eda184;
    --dot:         #2b2b26;
  }
}

:root[data-theme="dark"] {
  --ink:         #eceae4;
  --ink-soft:    #b4b1a8;
  --ink-mute:    #8b887f;
  --paper:       #121211;
  --paper-alt:   #1c1c19;
  --line:        #2e2e29;
  --accent:      #e08a68;
  --accent-deep: #eda184;
  --dot:         #2b2b26;
}

/* Im Dunkeln muss sich der Stack-Bereich andersherum absetzen */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .section-dark {
    background: #22221e;
    color: var(--ink);            /* sonst erbt der Text das dunkle --paper */
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  :root:not([data-theme="light"]) .site-header { background: rgba(18, 18, 17, .86); }
  :root:not([data-theme="light"]) .brand-mark,
  :root:not([data-theme="light"]) .hero-mark { filter: invert(1); }
}

:root[data-theme="dark"] .section-dark {
  background: #22221e;
  color: var(--ink);              /* sonst erbt der Text das dunkle --paper */
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
:root[data-theme="dark"] .site-header { background: rgba(18, 18, 17, .86); }
:root[data-theme="dark"] .brand-mark,
:root[data-theme="dark"] .hero-mark { filter: invert(1); }

/* ==========================================================================
   Media-Queries zum Schluss, damit sie die Basisregeln überschreiben
   ========================================================================== */

/* --- Responsive --------------------------------------------------------- */

@media (max-width: 760px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .mobile-nav[data-open="true"] { display: flex; }
  .btn { flex: 1 1 100%; }
  .grid { grid-template-columns: 1fr; }
  .stack-groups { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .stack-group .tags li { opacity: 1; transform: none; }
  .hero-mark.reveal { transform: none; }
  .progress { display: none; }
  .scroll-hint-arrow { animation: none; transform: none; opacity: 1; }
  .hero h1 .word { opacity: 1; transform: none; }
  .pointer-trail { display: none; }
}

/* --- Print -------------------------------------------------------------- */

@media print {
  .site-header, .cta-row, .nav-toggle { display: none; }
  body { color: #000; }
  .section-dark { background: #fff; color: #000; }
  .tags li { border-color: #999; }
}