/* ============================================
   Under Maintenance – Mobile-First, Neobrutalism
   GitHub Dark: #0d1117, #010409, #30363d
   ============================================ */

:root {
  --bg-main: #0d1117;
  --bg-canvas: #010409;
  --border: #30363d;
  --border-thick: 4px;
  --border-hover: 6px;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --shadow: 6px 6px 0 #30363d;
  --shadow-hover: 10px 10px 0 #30363d;
  --transition: 0.2s ease;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --radius: 2px;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-mono);
  background: var(--bg-main);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
}

.canvas {
  min-height: 100vh;
  background-color: var(--bg-canvas);
  padding: clamp(0.75rem, 4vw, 1.5rem);
  position: relative;
  overflow: hidden;
}

/* Leichtes Tech-Grid im Hintergrund */
.canvas::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(48, 54, 61, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48, 54, 61, 0.07) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
  animation: bg-grid-drift 40s linear infinite;
}

@keyframes bg-grid-drift {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(28px, 28px); }
}

.main {
  position: relative;
  z-index: 1;
  max-width: 72rem;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: clamp(0.5rem, 3vw, 1rem) 0;
}

/* ----- Header ----- */
.header {
  margin-bottom: clamp(1rem, 6vw, 2rem);
}

.header-inner {
  padding: clamp(0.5rem, 3vw, 0.75rem) clamp(0.75rem, 4vw, 1rem);
  border: var(--border-thick) solid var(--border);
  background: var(--bg-main);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  transition: box-shadow var(--transition), border-width var(--transition);
}

.header-inner:hover {
  border-width: var(--border-hover);
  box-shadow: var(--shadow-hover);
}

.logo {
  font-size: clamp(0.75rem, 3.5vw, 0.9rem);
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* ----- Hero ----- */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: clamp(1.5rem, 8vw, 3rem) clamp(1rem, 5vw, 2rem);
  position: relative;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.badge {
  display: inline-block;
  padding: 0.35em 0.6em;
  font-size: clamp(0.7rem, 2.5vw, 0.85rem);
  font-weight: 600;
  color: var(--text-muted);
  border: var(--border-thick) solid var(--border);
  background: var(--bg-canvas);
  box-shadow: 4px 4px 0 var(--border);
  border-radius: var(--radius);
  margin-bottom: clamp(1rem, 5vw, 1.5rem);
  transition: transform var(--transition), box-shadow var(--transition);
}

.badge:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--border);
}

.hero-title {
  font-size: clamp(1.75rem, 8vw, 3rem);
  font-weight: 700;
  margin: 0 0 0.5em;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: clamp(0.9rem, 3.5vw, 1.1rem);
  color: var(--text-muted);
  margin: 0 0 clamp(1.5rem, 6vw, 2rem);
  max-width: 28ch;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(0.5rem, 3vw, 0.75rem);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.6em 1.2em;
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 2.5vw, 1rem);
  font-weight: 600;
  text-decoration: none;
  border: var(--border-thick) solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-width var(--transition);
}

.btn-primary {
  background: var(--bg-main);
  color: var(--text);
  box-shadow: var(--shadow);
}

.btn-primary:hover {
  border-width: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translate(-2px, -2px);
}

/* Pixel decoration (asymmetric) */
.hero-decoration {
  position: absolute;
  bottom: clamp(1rem, 5vw, 2rem);
  right: clamp(1rem, 5vw, 2rem);
  width: 44px;
  height: 44px;
  pointer-events: none;
  z-index: 0;
  animation: pixel-spinner-rotate 1.1s linear infinite;
}

.pixel-block {
  display: block;
  width: 10px;
  height: 10px;
  background: var(--border);
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 1px;
  /* Auf dem Kreis platzieren, Block bleibt gerade (counter-rotate) */
  transform: translate(-50%, -50%);
}

.pixel-block--1 { transform: translate(-50%, -50%) translateY(-14px); }
.pixel-block--2 { transform: translate(-50%, -50%) rotate(120deg) translateY(-14px) rotate(-120deg); }
.pixel-block--3 { transform: translate(-50%, -50%) rotate(240deg) translateY(-14px) rotate(-240deg); }

@keyframes pixel-spinner-rotate {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ----- Footer ----- */
.footer {
  margin-top: auto;
  padding: clamp(1rem, 4vw, 1.5rem) 0 0;
  text-align: center;
}

.footer-text {
  font-size: clamp(0.75rem, 2.5vw, 0.85rem);
  color: var(--text-muted);
  margin: 0;
}

/* ============================================
   Responsive Breakpoints (Mobile-First)
   sm: 480px, md: 768px, lg: 1024px, xl: 1280px
   ============================================ */

@media (min-width: 480px) {
  .hero-title {
    font-size: clamp(2rem, 7vw, 3rem);
  }
  .hero-subtitle {
    max-width: 32ch;
  }
}

@media (min-width: 768px) {
  .canvas {
    padding: clamp(1rem, 3vw, 2rem);
  }
  .hero {
    padding: clamp(2rem, 6vw, 4rem) 2rem;
  }
  .hero-title {
    font-size: clamp(2.25rem, 5vw, 3rem);
  }
  .logo {
    font-size: 0.9rem;
  }
}

@media (min-width: 1024px) {
  .main {
    padding: 1rem 0;
  }
  .hero-title {
    font-size: 3rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
    max-width: 36ch;
  }
}

@media (min-width: 1280px) {
  .canvas {
    padding: 2rem;
  }
  .hero {
    padding: 4rem 2rem;
  }
}