/* ==========================================================================
   Stephan Lache — persönliche Website
   Design-Tokens, Layout und Komponenten in einer Datei.
   ========================================================================== */

:root {
  /* Farben */
  --bg: #0f1115;
  --bg-elevated: #171a21;
  --border: #262b35;
  --text: #e6e8ec;
  --text-muted: #9aa1ad;
  --accent: #4dd0e1;
  --accent-strong: #7fe3f0;

  /* Typografie */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;

  /* Abstände & Form */
  --space-section: clamp(3rem, 7vw, 5.5rem);
  --radius: 10px;
  --measure: 68ch;
}

/* --------------------------------------------------------------------------
   Grundlagen
   -------------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 0.5em;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h3 {
  font-size: 1.125rem;
}

p {
  margin: 0 0 1rem;
  max-width: var(--measure);
}

a {
  color: var(--accent);
  text-decoration-color: rgba(77, 208, 225, 0.4);
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

a:hover {
  color: var(--accent-strong);
  text-decoration-color: currentColor;
}

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

ul {
  padding-left: 1.1rem;
}

/* --------------------------------------------------------------------------
   Layout-Hilfen
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.6rem 1rem;
  background-color: var(--accent);
  color: #0f1115;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */

.site-header {
  border-bottom: 1px solid var(--border);
  background-color: rgba(15, 17, 21, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header > .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
  flex-wrap: wrap;
}

.site-logo {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-logo .dot {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1.125rem;
  line-height: 1;
  padding: 0.5rem 0.7rem;
  cursor: pointer;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  padding-block: 0.25rem;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

/* --------------------------------------------------------------------------
   Hero & Sections
   -------------------------------------------------------------------------- */

.hero {
  padding-block: var(--space-section) clamp(2rem, 4vw, 3rem);
}

.hero-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.hero-text {
  flex: 1 1 320px;
}

.portrait {
  flex: 0 0 auto;
  width: clamp(140px, 20vw, 200px);
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--border);
}

/* Auf dem Desktop rechts neben dem Text, auf dem Handy darüber. */
@media (min-width: 721px) {
  .portrait {
    order: 2;
  }
}

.hero-eyebrow {
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.lead {
  color: var(--text-muted);
  font-size: 1.125rem;
}

.section {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.section + .section {
  border-top: 1px solid var(--border);
}

.section-header {
  margin-bottom: 2rem;
}

.section-header p {
  color: var(--text-muted);
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Karten & Raster
   -------------------------------------------------------------------------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: #38404e;
  transform: translateY(-2px);
}

.card h3 {
  margin-bottom: 0.4rem;
}

.card p:last-child,
.card ul:last-child {
  margin-bottom: 0;
}

.card-meta {
  color: var(--accent);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.card ul {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.9375rem;
}

.card li + li {
  margin-top: 0.25rem;
}

/* Textblöcke für die Hobbies-Seite */
.prose-block + .prose-block {
  margin-top: 2.5rem;
}

.prose-block h2 {
  margin-bottom: 0.75rem;
}

.prose-block p {
  color: var(--text-muted);
}

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

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: var(--space-section);
  padding-block: 2rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.site-footer > .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0;
}

/* --------------------------------------------------------------------------
   Mobile
   -------------------------------------------------------------------------- */

@media (max-width: 720px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    flex-basis: 100%;
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-links {
    flex-direction: column;
    gap: 0.25rem;
    padding-bottom: 1rem;
  }

  .nav-links a {
    display: block;
    padding: 0.5rem 0;
    border-bottom: none;
    border-left: 2px solid transparent;
    padding-left: 0.75rem;
  }

  .nav-links a[aria-current="page"] {
    border-left-color: var(--accent);
  }
}

/* --------------------------------------------------------------------------
   Bewegung reduzieren
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}