/* ============================================================
   Design tokens
   ============================================================ */
:root {
  --bg:            #0a0d12;
  --bg-elevated:   #10151c;
  --bg-terminal:   #0d1117;
  --bg-tag:        #131a22;
  --border:        #1f2733;
  --border-bright: #2a3543;

  --text:          #e3e8ef;
  --text-muted:    #7c8798;
  --text-faint:    #7d8ea7; /* angehoben von #4c5665 — vorher nur ~2.5:1 Kontrast auf dunklem Grund, jetzt ~5.5:1 (WCAG AA) */

  --accent:        #4dd9c4;
  --accent-dim:    #2a5f58;
  --accent-glow:   rgba(77, 217, 196, 0.14);
  --accent-text:   #0a0d12;

  --amber:         #ffb454;
  --rose:          #f7768e;

  --font-mono: ui-monospace, "JetBrains Mono", "Fira Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius: 8px;
  --radius-sm: 4px;
  --maxw: 1040px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@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: var(--bg);
  background-image:
    radial-gradient(circle at 15% 0%, var(--accent-glow), transparent 40%),
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
  background-position: 0 0, -1px -1px, -1px -1px;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* subtle grid fade so it doesn't fight with content */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, transparent 0%, var(--bg) 75%);
  z-index: 0;
}

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

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

h1, h2, h3 {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; color: var(--text-muted); }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.eyebrow::before { content: "$"; color: var(--text-faint); }

/* ============================================================
   Header / nav
   ============================================================ */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 13, 18, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.brand {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text);
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand:hover { text-decoration: none; color: var(--accent); }
.brand .caret {
  color: var(--accent);
  animation: blink 1.1s step-end infinite;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}
.nav-links a {
  color: var(--text-muted);
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text);
  text-decoration: none;
  border-bottom-color: var(--accent);
}

/* Sprachumschalter (DE / EN) */
.nav-lang {
  display: flex;
  align-items: center;
  gap: 6px;
  border-left: 1px solid var(--border);
  padding-left: 20px;
}
.nav-lang a,
.nav-lang .lang-current {
  font-size: 0.8rem;
}
.nav-lang .lang-current { color: var(--text); font-weight: 600; }
.nav-lang a { color: var(--text-muted); padding: 4px 2px; }
.nav-lang a:hover { color: var(--accent); text-decoration: none; }

/* Burger-Toggle — nur < 640px sichtbar, siehe Media Query unten */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 640px) {
  .nav { position: relative; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    margin: 0;
    padding: 12px 24px 20px;
    box-sizing: border-box;
    flex-direction: column;
    gap: 4px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 2px; }
  .nav-lang {
    border-left: none;
    border-top: 1px solid var(--border);
    padding-left: 2px;
    padding-top: 12px;
    margin-top: 6px;
  }
}

/* ============================================================
   Terminal window chrome — signature motif
   ============================================================ */
.term-window {
  background: var(--bg-terminal);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.6);
}

.term-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}
.term-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.term-dot.r { background: #ff5f57; }
.term-dot.y { background: #febc2e; }
.term-dot.g { background: #28c840; }
.term-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
}

.term-body {
  padding: 22px 24px 26px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.term-line { color: var(--text-muted); margin: 0 0 6px; }
.term-line .prompt { color: var(--accent); }
.term-line .path { color: var(--rose); }
.term-out { color: var(--text); }

.cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--accent);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* typing effect target */
.type-target { white-space: pre-wrap; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding: 88px 0 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 40px; }
}

.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.15;
  color: var(--text);
}
.hero h1 .hl { color: var(--accent); }

.hero-sub {
  font-size: 1.05rem;
  max-width: 46ch;
}

.btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; }

.btn {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-bright);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.btn:hover { text-decoration: none; border-color: var(--accent); transform: translateY(-1px); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
  font-weight: 600;
}
.btn-primary:hover { background: #62e6d2; }

/* ============================================================
   Sections
   ============================================================ */
section { padding: 64px 0; }
.section-head { margin-bottom: 36px; max-width: 60ch; }
.section-head h2 { font-size: 1.5rem; color: var(--text); }

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* stack / skills tags */
.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg-tag);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
}
.tag.accent { color: var(--accent); border-color: var(--accent-dim); }

/* categorized skill groups (Führung, DevOps, ...) */
.skill-group { margin-bottom: 28px; }
.skill-group:last-child { margin-bottom: 0; }
.skill-group h3 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 0 0 10px;
}

/* app preview cards on homepage */
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
@media (max-width: 720px) {
  .card-grid { grid-template-columns: 1fr; }
}

.app-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color .15s ease, transform .15s ease;
}
.app-card:hover { border-color: var(--accent-dim); transform: translateY(-2px); }

.app-card .app-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-text);
}

.app-card h3 { font-size: 1.15rem; margin-bottom: 4px; color: var(--text); }
.app-card .status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber);
}
.app-card .status.live { color: var(--accent); }

.app-card a.card-link {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* ============================================================
   Developer page — detailed app blocks
   ============================================================ */
.app-detail {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 40px;
  background: var(--bg-elevated);
}

.app-detail-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 28px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.app-detail-head .app-icon { width: 46px; height: 46px; font-size: 1.1rem; flex-shrink: 0; }
.app-detail-head h2 { margin: 0; font-size: 1.3rem; }
.app-detail-head .platform {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
}

.app-detail-body {
  padding: 28px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 30px;
}
@media (max-width: 760px) {
  .app-detail-body { grid-template-columns: 1fr; }
}

.app-detail-body h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin: 0 0 10px;
}

/* screenshot placeholder frame */
.shot-frame {
  border: 1px dashed var(--border-bright);
  border-radius: var(--radius);
  background: var(--bg-terminal);
  aspect-ratio: 9 / 16;
  max-width: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-faint);
  overflow: hidden;
}
/* variant once a real screenshot is dropped in — clickable to enlarge */
.shot-frame.filled {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  color: inherit;
  border-style: solid;
  padding: 0;
  max-width: 125px;
  cursor: zoom-in;
  transition: border-color .15s ease;
}
.shot-frame.filled:hover,
.shot-frame.filled:focus-visible {
  border-color: var(--accent);
}
.shot-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .2s ease;
}
.shot-frame.filled:hover img { transform: scale(1.04); }
.shot-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* Lightbox overlay for enlarged screenshots */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: rgba(5, 7, 10, 0.9);
  cursor: zoom-out;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
}
.lightbox-overlay.open { opacity: 1; pointer-events: auto; }
.lightbox-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.8);
}

.placeholder-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--rose);
  border-left: 2px solid var(--rose);
  padding-left: 10px;
  margin-top: 16px;
}

/* ============================================================
   Legal pages
   ============================================================ */
.legal {
  max-width: 74ch;
}
.legal h2 {
  font-size: 1.15rem;
  color: var(--text);
  margin-top: 2.2em;
}
.legal h2:first-child { margin-top: 0; }
.legal p, .legal li { color: var(--text-muted); }
.legal ul { padding-left: 1.2em; }

.callout {
  background: var(--bg-elevated);
  border: 1px solid var(--accent-dim);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-size: 0.92rem;
  margin: 0 0 32px;
}
.callout strong { color: var(--accent); }

.fill {
  color: var(--amber);
  background: rgba(255, 180, 84, 0.1);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* ============================================================
   Footer
   ============================================================ */
footer.site {
  border-top: 1px solid var(--border);
  margin-top: 60px;
  padding: 28px 0 40px;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
}
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-faint); }
.footer-links a:hover { color: var(--accent); }