/* ==========================================================================
   Design-Tokens
   ========================================================================== */
:root {
  /* Flächen & Text */
  --bg: #0d1117;
  --bg-elevated: #161b22;
  --text-primary: #e6edf3;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --accent-solid: #1f6feb;
  --border: #30363d;
  --border-subtle: #21262d;

  /* Syntax-Token (GitHub Dark) */
  --syn-comment: #8b949e;
  --syn-keyword: #ff7b72;
  --syn-string: #a5d6ff;
  --syn-func: #d2a8ff;
  --syn-number: #79c0ff;

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

  /* Layout */
  --container-width: 880px;
  --header-height: 56px;
  --gutter-width: 2.25rem;
  --code-line-height: 1.95;

  /* Abstände */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 16px;
  --sp-4: 24px;
  --sp-5: 40px;
  --sp-6: 72px;

  --radius: 6px;
  --radius-sm: 4px;
  --transition: 0.2s ease;
}

/* ==========================================================================
   Basis
   ========================================================================== */
* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--sp-4));
}

body {
  background:
    radial-gradient(ellipse 900px 520px at 50% -8%, rgba(88, 166, 255, 0.10), transparent 60%),
    radial-gradient(circle, rgba(230, 237, 243, 0.05) 1px, transparent 1px) 0 0 / 26px 26px,
    var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--sp-4);
}

section { padding: var(--sp-6) 0; }

ul { list-style: none; }

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

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

h1 {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* Section-Überschriften als Code-Kommentar */
h2 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0;
  margin-bottom: var(--sp-4);
}
h2::before {
  content: "// ";
  color: var(--syn-comment);
  font-weight: 400;
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

p { max-width: 62ch; }

.section-intro {
  color: var(--text-muted);
  margin-bottom: var(--sp-4);
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--sp-2);
  background: var(--accent-solid);
  color: #fff;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  z-index: 200;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--sp-2); }

/* ==========================================================================
   Header / Tab-Bar
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.85);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  white-space: nowrap;
}
.logo:hover { text-decoration: none; color: var(--accent); }
.logo-path { color: var(--syn-comment); }

.nav-links {
  display: flex;
  align-self: stretch;
}
.nav-links li { display: flex; }

.nav-link {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 0 var(--sp-3);
  border-top: 2px solid transparent;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}
.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
  text-decoration: none;
}
.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-elevated);
  border-top-color: var(--accent);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-primary);
  border-radius: 1px;
}

/* ==========================================================================
   Code-Block mit Zeilennummern
   ========================================================================== */
.code-block {
  counter-reset: line;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: var(--code-line-height);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-3) 0;
}

.code-line {
  display: grid;
  grid-template-columns: var(--gutter-width) 1fr;
  column-gap: var(--sp-3);
  padding-right: var(--sp-3);
  /* Hält Leerzeilen offen, auch wenn die Zeilennummer (Mobile) fehlt */
  min-height: calc(var(--code-line-height) * 1em);
}
.code-line::before {
  counter-increment: line;
  content: counter(line);
  text-align: right;
  color: var(--border);
  -webkit-user-select: none;
  user-select: none;
}
.code-text { min-width: 0; }
.code-line.indent .code-text { padding-left: 4ch; }
.code-line.indent-2 .code-text { padding-left: 8ch; }

.c-comment { color: var(--syn-comment); }
.c-keyword { color: var(--syn-keyword); }
.c-string  { color: var(--syn-string); }
.c-func    { color: var(--syn-func); }
.c-prop    { color: var(--syn-number); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  min-height: calc(100svh - var(--header-height));
  display: flex;
  align-items: center;
}

.hero-content { width: 100%; }

.hero-head {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-5);
}

.avatar-link {
  display: block;
  flex-shrink: 0;
  border-radius: var(--radius);
}

.avatar {
  display: block;
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  transition: border-color var(--transition);
}
.avatar-link:hover .avatar,
.avatar-link:focus-visible .avatar {
  border-color: var(--accent);
}

/* Overlay mit der großen Version des Profilbilds, per JS via <dialog>
   geöffnet (siehe script.js). Ohne JS bleibt der Link auf .avatar-link
   als Fallback, der das Bild direkt öffnet. */
.avatar-dialog {
  position: fixed;
  inset: 0;
  margin: auto;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  max-width: min(90vw, 640px);
  max-height: 90vh;
}
.avatar-dialog::backdrop {
  background: rgba(1, 4, 9, 0.75);
  backdrop-filter: blur(2px);
}
.avatar-dialog-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.dialog-close {
  position: absolute;
  top: var(--sp-2);
  right: var(--sp-2);
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}
.dialog-close:hover { border-color: var(--accent); color: var(--accent); }

.role {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--syn-string);
  margin-top: var(--sp-1);
}

.cursor {
  display: inline-block;
  width: 0.5em;
  height: 1.05em;
  margin-left: 2px;
  background: var(--accent);
  vertical-align: -0.15em;
  animation: blink 1.1s step-end infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ==========================================================================
   Über mich
   ========================================================================== */
.about p + p { margin-top: var(--sp-3); }

.meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-4);
  margin-top: var(--sp-4);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.meta-list .c-prop { margin-right: var(--sp-1); }

/* ==========================================================================
   Stack
   ========================================================================== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-4);
}

.stack-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--syn-number);
  padding-bottom: var(--sp-2);
  margin-bottom: var(--sp-3);
  border-bottom: 1px solid var(--border-subtle);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px var(--sp-2);
  white-space: nowrap;
}

.tag-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* ==========================================================================
   Basteleien
   ========================================================================== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--sp-3);
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-4);
  transition: border-color var(--transition), transform var(--transition);
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.project-title {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
}
.project-title::before {
  content: "./";
  color: var(--syn-comment);
  font-weight: 400;
}

.project-card p {
  max-width: none;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Tags an den Kartenboden, damit unterschiedlich lange Texte
   nicht zu versetzten Reihen führen */
.project-card .tag-list { margin-top: auto; padding-top: var(--sp-2); }

.project-link {
  display: inline-flex;
  margin-top: var(--sp-1);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

/* Eigenständiges Markenelement für schneidoa.cloud: nutzt den Original-
   Farbverlauf des Logos (statt --accent), damit klar ist, dass hier eine
   andere Domain/Marke referenziert wird. */
.cloud-banner {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.cloud-banner::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, #5eead4, #6c8cff);
}
.cloud-banner:hover {
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(94, 234, 212, 0.25), 0 10px 28px -12px rgba(108, 140, 255, 0.45);
}

.cloud-banner-mark {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(94, 234, 212, 0.32), rgba(108, 140, 255, 0.32));
  border: 1px solid rgba(94, 234, 212, 0.4);
}
.cloud-banner-mark img { width: 28px; height: 20px; }

.cloud-banner-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.cloud-banner-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.cloud-banner-url {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cloud-banner-domain {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  background: linear-gradient(90deg, #5eead4, #6c8cff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.cloud-banner-arrow {
  color: var(--text-primary);
  transition: transform var(--transition);
}
.cloud-banner:hover .cloud-banner-arrow { transform: translateX(4px); }

/* ==========================================================================
   Abseits vom Code
   ========================================================================== */
.offline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-2);
}

.offline-card {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-3);
  transition: border-color var(--transition), transform var(--transition);
}

.offline-text { position: relative; min-width: 0; }

.offline-desc {
  margin-top: 2px;
  max-width: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.45;
}
.offline-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.offline-card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background-repeat: repeat;
  transition: opacity var(--transition);
  pointer-events: none;
}
.offline-card:hover::before { opacity: 0.16; }

.offline-card--bike::before { background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%2790%27%20height%3D%2764%27%3E%3Cpath%20d%3D%27M0%2034%20L14%208%20L28%2034%20L42%208%20L56%2034%27%20stroke%3D%27%2358a6ff%27%20stroke-width%3D%271.5%27%20fill%3D%27none%27/%3E%3C/svg%3E"); }
.offline-card--camping::before { background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%2770%27%20height%3D%2764%27%3E%3Cpath%20d%3D%27M4%2034%20L22%206%20L40%2034%20Z%20M13%2034%20L22%2020%20L31%2034%27%20stroke%3D%27%2358a6ff%27%20stroke-width%3D%271.5%27%20fill%3D%27none%27/%3E%3C/svg%3E"); }
.offline-card--boardgames::before { background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%2764%27%20height%3D%2774%27%3E%3Cpolygon%20points%3D%2720%2C2%2037%2C12%2037%2C34%2020%2C44%203%2C34%203%2C12%27%20stroke%3D%27%2358a6ff%27%20stroke-width%3D%271.5%27%20fill%3D%27none%27/%3E%3C/svg%3E"); }
.offline-card--coop::before { background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%2738%27%20height%3D%2738%27%3E%3Crect%20x%3D%271%27%20y%3D%271%27%20width%3D%2722%27%20height%3D%2722%27%20stroke%3D%27%2358a6ff%27%20stroke-width%3D%271.3%27%20fill%3D%27none%27/%3E%3C/svg%3E"); }
.offline-card--grill::before { background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%2728%27%20height%3D%2728%27%3E%3Cpath%20d%3D%27M0%2018%20L18%200%27%20stroke%3D%27%2358a6ff%27%20stroke-width%3D%271.5%27/%3E%3C/svg%3E"); }
.offline-card--wok::before { background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A//www.w3.org/2000/svg%27%20width%3D%2782%27%20height%3D%2738%27%3E%3Cpath%20d%3D%27M0%2012%20Q13%200%2026%2012%20T52%2012%27%20stroke%3D%27%2358a6ff%27%20stroke-width%3D%271.5%27%20fill%3D%27none%27/%3E%3C/svg%3E"); }

.offline-emoji {
  position: relative;
  font-size: 1.15rem;
  line-height: 1;
  flex-shrink: 0;
}

.offline-title {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
}

/* ==========================================================================
   Impressum / Datenschutz
   ========================================================================== */
.legal h3 { margin-top: var(--sp-4); margin-bottom: var(--sp-2); }
.legal p + p { margin-top: var(--sp-2); }
.legal p { max-width: 68ch; }

/* ==========================================================================
   Fehlerseiten (404/500)
   ========================================================================== */
.error-page {
  min-height: calc(100svh - var(--header-height));
  display: flex;
  align-items: center;
}
.error-page .code-block { margin: var(--sp-4) 0; max-width: 560px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--sp-5) 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2) var(--sp-3);
  max-width: none;
  margin-bottom: var(--sp-2);
}
.footer-links .sep { color: var(--border); }

.footer-social {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2) var(--sp-3);
  max-width: none;
  margin-bottom: var(--sp-2);
}
.footer-label {
  color: var(--syn-comment);
}
.footer-label::before {
  content: "// ";
}

.footer-meta { max-width: none; color: var(--syn-comment); }
.footer-meta .heart { color: var(--syn-keyword); }

/* ==========================================================================
   Back-to-Top
   ========================================================================== */
.back-to-top {
  position: fixed;
  bottom: var(--sp-4);
  right: var(--sp-4);
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition),
              border-color var(--transition), color var(--transition);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { border-color: var(--accent); color: var(--accent); }
.back-to-top svg { display: block; }

/* ==========================================================================
   Scroll-Reveal (nur mit aktivem JS, sonst bleibt alles sichtbar)
   ========================================================================== */
.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js .reveal.visible { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-self: auto;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }
  .nav-links.open { max-height: 320px; }
  .nav-links li { border-top: 1px solid var(--border); }
  .nav-link {
    display: block;
    width: 100%;
    padding: var(--sp-3) var(--sp-4);
    border-top: none;
    border-bottom: none;
    border-left: 2px solid transparent;
  }
  .nav-link.active {
    border-top-color: transparent;
    border-left-color: var(--accent);
    background: transparent;
  }
}

@media (max-width: 600px) {
  :root { --sp-6: 56px; }
  h1 { font-size: 1.9rem; }
  /* Zeilennummern raus: ::before ist Grid-Item, daher muss auch die
     Spaltendefinition auf eine Spalte wechseln. */
  .code-line {
    grid-template-columns: 1fr;
    column-gap: 0;
    padding-left: var(--sp-3);
  }
  .code-line::before { display: none; }
  .hero-head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-3);
  }
  .avatar { width: 72px; height: 72px; }
  .offline-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Reduzierte Bewegung
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
  .cursor { animation: none; }
  .project-card:hover { transform: none; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}