/* ==========================================================================
   Dominic Darius Rafiy — Persönliche Website
   Zentrales Stylesheet
   Kein Framework, keine Abhängigkeiten. Reines CSS3 mit Custom Properties.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design-Tokens (dunkles Theme: dunkles Marineblau + petrolfarbener Akzent)
   -------------------------------------------------------------------------- */
:root {
  /* Farben */
  --color-bg: #0F1B2D;            /* dunkles Marineblau */
  --color-bg-elevated: #16273E;   /* Flächen für Karten, etwas heller */
  --color-border: #2A3C56;
  --color-text-primary: #F2F3F5;
  --color-text-secondary: #B3BECC;
  --color-text-muted: #7C8898;
  --color-accent: #5FA8D6;        /* dezentes helles Petrol/Blau, gut lesbar auf Dunkel */
  --color-accent-soft: #1B2E45;   /* sehr dunkles Blau für Hover-/Flächenakzente */
  --color-focus: #5FA8D6;

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

  --fs-h1: clamp(2.25rem, 5vw + 1rem, 3.75rem);
  --fs-h2: clamp(1.5rem, 2vw + 1rem, 2rem);
  --fs-h3: 1.125rem;
  --fs-body: 1.0625rem;
  --fs-small: 0.9375rem;
  --fs-micro: 0.8125rem;

  --lh-tight: 1.15;
  --lh-normal: 1.6;

  /* Abstände (8px-Raster) */
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 7rem;

  /* Layout */
  --content-max-width: 46rem;
  --wide-max-width: 64rem;
  --radius: 6px;
  --border-width: 1px;
}

/* --------------------------------------------------------------------------
   2. Reset & Grundlagen
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  color-scheme: dark;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

h1, h2, h3, p, ul, ol, dl {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

/* Sichtbarer Fokusring für Tastaturnutzung (WCAG) */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 2px;
}

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

/* --------------------------------------------------------------------------
   3. Layout-Hilfen
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container--wide {
  max-width: var(--wide-max-width);
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -100px;
  background: var(--color-accent);
  color: #0F1B2D;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  z-index: 100;
  transition: top 0.15s ease;
}

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

/* --------------------------------------------------------------------------
   4. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  border-bottom: var(--border-width) solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.site-logo {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--color-text-primary);
  white-space: nowrap;
}

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

.site-nav ul {
  display: flex;
  gap: var(--space-5);
}

.site-nav a {
  text-decoration: none;
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

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

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

/* --------------------------------------------------------------------------
   5. Hauptbereich / Hero (Startseite)
   -------------------------------------------------------------------------- */
.hero {
  padding-block: var(--space-8) var(--space-6);
}

.hero__name {
  font-size: var(--fs-h1);
  font-weight: 600;
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
}

.fact-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--color-text-secondary);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-5);
  border-bottom: var(--border-width) solid var(--color-border);
}

.fact-list li {
  display: flex;
  align-items: baseline;
  gap: 0.4em;
}

.fact-list li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-accent);
  display: inline-block;
  margin-right: 0.2em;
}

.hero__summary {
  max-width: 38rem;
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-5);
}

.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-size: var(--fs-small);
  text-decoration: none;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1px;
}

.linkedin-link:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.linkedin-link svg {
  width: 0.8em;
  height: 0.8em;
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   6. Seiten-Intro (Apps / Bücher)
   -------------------------------------------------------------------------- */
.page-intro {
  padding-block: var(--space-7) var(--space-6);
}

.page-intro h1 {
  font-size: var(--fs-h2);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-3);
}

.page-intro p {
  color: var(--color-text-secondary);
  max-width: 38rem;
}

/* --------------------------------------------------------------------------
   7. Karten (Apps & Bücher)
   -------------------------------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-4);
  padding-bottom: var(--space-8);
}

.card {
  background-color: var(--color-bg-elevated);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.card__media {
  aspect-ratio: 16 / 10;
  background-color: var(--color-accent-soft);
  border-radius: calc(var(--radius) - 2px);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card--book .card__media {
  aspect-ratio: 3 / 4;
  max-width: 10rem;
}

.card__media-placeholder {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--color-accent);
  text-align: center;
  padding: var(--space-2);
}

.card__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
}

.card__title {
  font-size: var(--fs-h3);
  font-weight: 600;
  letter-spacing: -0.005em;
}

.card__platform {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.card__description {
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  flex-grow: 1;
}

.card__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-1);
  border-top: var(--border-width) solid var(--color-border);
}

.card__links a {
  font-size: var(--fs-small);
  text-decoration: none;
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
}

.card__links a:hover {
  border-bottom-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   8. Rechtstexte (Impressum / Datenschutz)
   -------------------------------------------------------------------------- */
.legal {
  padding-block: var(--space-7) var(--space-8);
}

.legal h1 {
  font-size: var(--fs-h2);
  font-weight: 600;
  margin-bottom: var(--space-5);
}

.legal h2 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
}

.legal p,
.legal address {
  color: var(--color-text-secondary);
  font-style: normal;
  margin-bottom: var(--space-2);
}

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

.legal .placeholder {
  color: var(--color-text-muted);
  background-color: var(--color-accent-soft);
  padding: 0 0.3em;
  border-radius: 3px;
}

.legal .lang-block + .lang-block {
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: var(--border-width) solid var(--color-border);
}

.legal .stand {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  margin-bottom: var(--space-5);
}

/* --------------------------------------------------------------------------
   9. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: var(--border-width) solid var(--color-border);
}

.site-footer__inner {
  padding-block: var(--space-4);
  display: flex;
  gap: var(--space-4);
}

.site-footer a {
  font-size: var(--fs-micro);
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   10. Responsive Anpassungen
   -------------------------------------------------------------------------- */
@media (max-width: 40rem) {
  .hero {
    padding-block: var(--space-6) var(--space-5);
  }

  .site-nav ul {
    gap: var(--space-3);
  }

  .card--book .card__media {
    max-width: 8rem;
  }
}