/* stephan-hannach.de: Gestaltung der bisherigen Startseite (Projekt stephan-hannach.de, Stand 2026-07),
   ohne Framework. Farben und Abstände folgen den arvex-Tokens; hell ist Standard, dunkel über
   [data-theme="dark"] (gesetzt von theme.js vor dem ersten Paint). */

@font-face {
  font-family: "Mulish";
  src: url("/assets/fonts/Mulish.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --c-primary: #256694;
  --c-primary-light: #4a8fc4;
  --c-accent: #f98008;
  --c-surface: #ffffff;
  --c-surface-warm: #f7f5f1;
  --c-surface-alt: #dddddd;
  --c-surface-dark: #0a1628;
  --c-surface-dark-alt: #162238;
  --c-text-inverted: #f5f7fa;
  --c-text-muted-dark: #a8b2c1;

  --bg: var(--c-surface-warm);
  --bg-alt: var(--c-surface-alt);
  --fg: var(--c-surface-dark);
  --fg-muted: #4a5568;
  --fg-lead: #2a3a4d;
  --fg-accent: var(--c-primary);
  --border: var(--c-surface-alt);
  /* Tiefe ohne Farbverlauf: feines Korn und ein dezentes Punktraster */
  --noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  --grid: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='22'%3E%3Ccircle cx='1.5' cy='1.5' r='1' fill='%23256694' opacity='0.11'/%3E%3C/svg%3E");

  --font-primary: "Mulish", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Menlo, Consolas, monospace;
  --text-lead: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);

  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-8: 96px;
  --radius-sm: 4px;

  color-scheme: light;
}

[data-theme="dark"] {
  --bg: var(--c-surface-dark);
  --bg-alt: var(--c-surface-dark-alt);
  --fg: var(--c-text-inverted);
  --fg-muted: var(--c-text-muted-dark);
  --fg-lead: #cdd6e1;
  --fg-accent: var(--c-primary-light);
  --border: #1f2d45;
  --grid: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='22'%3E%3Ccircle cx='1.5' cy='1.5' r='1' fill='%234a8fc4' opacity='0.17'/%3E%3C/svg%3E");
  color-scheme: dark;
}

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

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

body {
  margin: 0;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg);
  background-image: var(--grid), var(--noise);
  color: var(--fg);
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--fg);
  font-weight: 700;
  line-height: 1.15;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2rem, 1.4rem + 3vw, 3.25rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  max-width: 22ch;
  margin-bottom: clamp(1rem, 0.5rem + 1.5vw, 1.5rem);
}

h2 {
  font-size: clamp(1.25rem, 1.1rem + 0.8vw, 1.5rem);
  letter-spacing: -0.01em;
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

p {
  margin: 0;
  max-width: 70ch;
}

a {
  color: var(--fg-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-decoration-color: var(--c-accent);
  text-underline-offset: 2px;
}

/* Links im Fließtext brauchen ein Merkmal außer der Farbe (WCAG 1.4.1) */
.legal a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

::selection {
  background: var(--c-accent);
  color: #fff;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -100px;
  z-index: 50;
  padding: var(--space-2) var(--space-3);
  background: var(--bg);
  border: 1px solid var(--fg-accent);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: var(--space-3);
}

/* Kopfzeile */
.site-header {
  border-bottom: 1px solid var(--c-accent);
  background: var(--bg);
}

.site-header__inner,
.site-footer__inner,
main {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
}

.logo-light,
.logo-dark {
  height: clamp(42px, 2.5vw + 30px, 56px);
  width: auto;
}

.logo-dark,
[data-theme="dark"] .logo-light {
  display: none;
}

[data-theme="dark"] .logo-dark {
  display: block;
}

.site-header__tools {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header-cta {
  display: none;
  align-items: center;
  min-height: 36px;
  padding: 0.4em 1.05em;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  color: var(--fg-accent);
  border: 1px solid var(--fg-accent);
  border-radius: var(--radius-sm);
}

.header-cta:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: var(--c-text-inverted);
  text-decoration: none;
}

@media (min-width: 720px) {
  .header-cta {
    display: inline-flex;
  }
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  white-space: nowrap;
}

.lang-switch a,
.lang-switch span {
  display: inline-flex;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  font-size: 1.0625rem;
  color: var(--fg);
}

.lang-switch a:hover {
  color: var(--fg-accent);
  text-decoration: none;
}

.lang-switch [aria-current] {
  color: var(--fg-accent);
  font-weight: 600;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  padding: 4px 6px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--c-accent);
  cursor: pointer;
}

/* Sonne im hellen Modus, Mond im dunklen; ohne JS bleibt der Schalter verborgen */
.theme-toggle .icon-moon,
[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

html:not([data-theme]) .theme-toggle {
  display: none;
}

/* Inhalt */
main {
  flex: 1 0 auto;
  padding: var(--space-8) var(--space-4);
}

.hero {
  display: grid;
  gap: clamp(var(--space-6), 4vw, var(--space-8));
  align-items: center;
}

.hero__lead {
  font-size: var(--text-lead);
  line-height: 1.42;
  letter-spacing: -0.005em;
  color: var(--fg-lead);
  max-width: 52ch;
  text-wrap: pretty;
}

.hero__lead + .hero__lead {
  margin-top: var(--space-3);
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  margin-top: clamp(1.5rem, 1rem + 2vw, 2.5rem);
}

/* Handlungsaufforderung: Link mit orangefarbenem Pfeil, kein schwerer Button */
.cta {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4em;
  font-weight: 600;
  color: var(--fg-accent);
}

.cta::after {
  content: "→";
  color: var(--c-accent);
  transition: transform 0.15s ease;
}

.cta:hover {
  text-decoration-color: var(--c-accent);
  text-underline-offset: 4px;
}

.cta:hover::after {
  transform: translateX(3px);
}

.cta--secondary {
  color: var(--fg-muted);
  font-weight: 400;
}

.hero__visual {
  display: none;
}

@media (min-width: 820px) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .hero__visual {
    display: block;
    width: 100%;
    height: auto;
    max-width: 480px;
    margin-inline: auto;
    color: var(--fg-accent);
  }
}

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

.hero__labels text {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  fill: currentColor;
  opacity: 0.6;
}

.hero__labels .hero__label--here {
  opacity: 0.85;
}

@media (prefers-reduced-motion: no-preference) {
  .hero__pulse {
    transform-box: fill-box;
    transform-origin: center;
    animation: hero-ping 3.6s ease-out infinite;
  }

  .hero__orbit {
    transform-box: view-box;
    transform-origin: 220px 220px;
    animation: hero-orbit 26s linear infinite;
  }
}

@keyframes hero-ping {
  0% {
    transform: scale(0.8);
    opacity: 0.7;
  }

  70%,
  100% {
    transform: scale(2.3);
    opacity: 0;
  }
}

@keyframes hero-orbit {
  to {
    transform: rotate(360deg);
  }
}

/* Rechtstexte */
.legal h1 {
  font-size: clamp(1.875rem, 1.45rem + 1.4vw, 2.5rem);
  line-height: 1.12;
  max-width: 34ch;
}

.legal p,
.legal ul {
  color: var(--fg-muted);
}

.legal p + p {
  margin-top: var(--space-3);
}

.legal ul {
  margin: var(--space-2) 0 0;
  padding-inline-start: 1.25em;
  max-width: 70ch;
}

.legal .updated {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}

/* Fußzeile */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: var(--space-6);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
  padding: var(--space-5) var(--space-4);
  font-size: 0.875rem;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px var(--space-3);
}

.site-footer a,
.site-footer p {
  color: var(--fg-muted);
}

.site-footer a:hover {
  color: var(--fg-accent);
}

.site-footer__social {
  display: flex;
  gap: var(--space-2);
}

.site-footer__social a {
  display: inline-flex;
  padding: 4px;
}

.site-footer__copy {
  margin-inline-start: auto;
}

@media (prefers-reduced-motion: reduce) {
  .cta::after {
    transition: none;
  }
}