/* ============================================================
   Johannes Goergen — Fullstack & DevOps
   Dark cutting-edge theme
   ============================================================ */

:root {
  --bg-deep: #06060a;
  --bg-primary: #0a0a10;
  --bg-surface: #101018;
  --bg-card: #13131d;
  --bg-card-hover: #191926;
  --text-primary: #e6e6ec;
  --text-secondary: #9a9ab0;
  --text-muted: #55556a;
  --accent: #00d4ff;
  --accent-soft: #00b8dd;
  --accent-glow: rgba(0, 212, 255, 0.10);
  --accent-glow-strong: rgba(0, 212, 255, 0.22);
  --border: #1c1c2a;
  --border-light: #24243a;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia Code', Consolas, 'Liberation Mono', 'Courier New', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Roboto, 'Helvetica Neue', Arial, sans-serif;
  --radius: 6px;
  --radius-lg: 12px;
  --transition: 0.25s ease;
  --max-width: 72rem;
}

/* ---- Reset & Base ---- */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@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 {
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.125rem);
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-deep);
  background-image: radial-gradient(circle, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Skip Link ---- */

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--accent);
  color: var(--bg-deep);
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  z-index: 1000;
  text-decoration: none;
  transition: top var(--transition);
}

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

/* ---- Focus ---- */

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

/* ---- Links ---- */

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

a:hover {
  color: #33dfff;
}

/* ---- Header / Nav ---- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(6, 6, 10, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.75rem;
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-brand span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: color var(--transition);
  padding: 0.25rem 0;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--accent);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  color: var(--text-primary);
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
}

@media (max-width: 48rem) {
  .nav-links {
    display: none;
    position: absolute;
    top: 3.75rem;
    left: 0;
    right: 0;
    background: rgba(6, 6, 10, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 1rem 1.5rem 1.5rem;
    gap: 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links li {
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 0;
    font-size: 1rem;
  }

  .nav-toggle {
    display: block;
  }
}

/* ---- Container ---- */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- Sections ---- */

section {
  padding: 6rem 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(1.75rem, 1.3rem + 2vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: clamp(1rem, 0.9rem + 0.4vw, 1.15rem);
  max-width: 40rem;
  line-height: 1.7;
}

/* ---- Hero ---- */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 3.75rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 45rem;
  height: 45rem;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 65%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 52rem;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero-tag::before {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 2rem + 4vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1.5rem;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-description {
  font-size: clamp(1.05rem, 0.95rem + 0.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 36rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.stack-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(0, 212, 255, 0.15);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  white-space: nowrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--bg-deep);
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  padding: 0.8rem 1.8rem;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background: #33dfff;
  color: var(--bg-deep);
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.25);
}

.btn-primary:active {
  transform: translateY(0);
}

/* ---- Services / Leistungen ---- */

.services-section {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

@media (max-width: 48rem) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 1.5rem;
  right: 1.5rem;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px 2px 0 0;
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-glow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 212, 255, 0.12);
  margin-bottom: 1.25rem;
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.service-tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
}

/* ---- About ---- */

.about-section {
  position: relative;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 3rem;
}

@media (max-width: 48rem) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-facts {
  display: grid;
  gap: 1.25rem;
}

.fact-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

.fact-item .fact-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.3rem;
}

.fact-item .fact-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ---- Availability / Öffnungszeiten ---- */

.availability-section {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.availability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

@media (max-width: 48rem) {
  .availability-grid {
    grid-template-columns: 1fr;
  }
}

.availability-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
}

.availability-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.availability-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

.availability-card .avail-highlight {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-top: 0.75rem;
  display: block;
}

/* ---- Contact ---- */

.contact-section {
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 3rem;
  align-items: start;
}

@media (max-width: 48rem) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.contact-info-block {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-item-icon {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--accent-glow);
  min-width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 212, 255, 0.12);
  flex-shrink: 0;
}

.contact-item-text .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.15rem;
}

.contact-item-text .value {
  font-size: 1rem;
  color: var(--text-primary);
}

.contact-item-text .value a {
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--border-light);
  transition: border-color var(--transition), color var(--transition);
}

.contact-item-text .value a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.contact-cta {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.contact-cta h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.contact-cta p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

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

.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
}

/* ---- Legal Pages ---- */

.legal-page {
  padding-top: 7rem;
  padding-bottom: 4rem;
  min-height: 100vh;
}

.legal-page h1 {
  font-size: clamp(1.75rem, 1.3rem + 2vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.legal-page .legal-updated {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
}

.legal-page h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.legal-page h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}

.legal-page p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  max-width: 48rem;
}

.legal-page ul {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  max-width: 48rem;
}

.legal-page li {
  margin-bottom: 0.4rem;
}

.legal-page address {
  font-style: normal;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.8;
}

/* ---- Utilities ---- */

@media (max-width: 48rem) {
  section {
    padding: 4rem 0;
  }

  .hero {
    min-height: auto;
    padding-top: 7rem;
    padding-bottom: 4rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: no-preference) {
  .service-card {
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  }

  .service-card:hover {
    transform: translateY(-2px);
  }
}