/* ============================================================
   Kay Beckmann – IT-Dienstleistungen
   Modern Dark Theme CSS
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --bg-primary:   #0d0d14;
  --bg-secondary: #13131e;
  --bg-card:      #1a1a28;
  --bg-card-hover:#1f1f32;
  --accent:       #d85050;
  --accent-hover: #e86060;
  --accent-glow:  rgba(216, 80, 80, 0.2);
  --blue:         #5080d8;
  --blue-glow:    rgba(80, 128, 216, 0.2);
  --green:        #50c878;
  --green-glow:   rgba(80, 200, 120, 0.2);
  --text-primary: #e8e8f0;
  --text-secondary:#8888a8;
  --text-muted:   #55556a;
  --border:       #2a2a3a;
  --border-light: #3a3a4f;
  --nav-height:   72px;
  --radius-sm:    6px;
  --radius-md:    12px;
  --radius-lg:    20px;
  --shadow-sm:    0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:    0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg:    0 20px 60px rgba(0,0,0,0.5);
  --transition:   0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

ul { list-style: none; }

/* ---------- Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 100px 0; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-light);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  height: var(--nav-height);
  transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
}

.nav.scrolled {
  background: rgba(13, 13, 20, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switcher {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.lang-switcher:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0 24px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(216, 80, 80, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(216, 80, 80, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPan 20s linear infinite;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 40%, rgba(216, 80, 80, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 60%, rgba(80, 128, 216, 0.08) 0%, transparent 60%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(transparent, var(--bg-primary));
}

@keyframes gridPan {
  0%   { background-position: 0 0; }
  100% { background-position: 60px 60px; }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease both;
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s 0.1s ease both;
}

.hero-title-accent {
  color: var(--accent);
  position: relative;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.6s 0.2s ease both;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s 0.3s ease both;
}

.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: fadeIn 1s 0.8s ease both;
}

.scroll-indicator {
  width: 26px;
  height: 42px;
  border: 2px solid var(--border-light);
  border-radius: 13px;
  position: relative;
}

.scroll-indicator::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollDot 2s ease infinite;
}

@keyframes scrollDot {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
  80%       { transform: translateX(-50%) translateY(16px); opacity: 0; }
}

/* ---------- Services Section ---------- */
.services { background: var(--bg-secondary); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  opacity: 0;
  transform: translateY(24px);
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-md);
  transform: translateY(-4px);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent);
}

.service-icon.blue {
  background: var(--blue-glow);
  border-color: var(--blue);
  color: var(--blue);
}

.service-icon.green {
  background: var(--green-glow);
  border-color: var(--green);
  color: var(--green);
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.service-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-tech li {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

/* ---------- Skills Section ---------- */
.skills { background: var(--bg-primary); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.skill-group {
  opacity: 0;
  transform: translateY(20px);
}

.skill-group.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.skill-group-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-group-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: default;
}

.skill-tag:hover { transform: translateY(-2px); }

.tag-red   { background: rgba(216,80,80,0.12);  border-color: rgba(216,80,80,0.3);  color: #e87878; }
.tag-blue  { background: rgba(80,128,216,0.12); border-color: rgba(80,128,216,0.3); color: #8ab0e8; }
.tag-green { background: rgba(80,200,120,0.12); border-color: rgba(80,200,120,0.3); color: #80d898; }
.tag-yellow{ background: rgba(200,160,80,0.12); border-color: rgba(200,160,80,0.3); color: #d8c078; }
.tag-purple{ background: rgba(160,80,216,0.12); border-color: rgba(160,80,216,0.3); color: #c890e8; }
.tag-cyan  { background: rgba(80,200,216,0.12); border-color: rgba(80,200,216,0.3); color: #80d8e8; }

/* ---------- About Section ---------- */
.about { background: var(--bg-secondary); }

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text {
  opacity: 0;
  transform: translateX(-24px);
}

.about-text.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.about-text h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
}

.about-text h2 span { color: var(--accent); }

.about-text p {
  font-size: 0.97rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.about-highlight {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.about-highlight-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  opacity: 0;
  transform: translateX(24px);
}

.about-stats.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.6s ease 0.15s, transform 0.6s ease 0.15s;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ---------- Contact Section ---------- */
.contact { background: var(--bg-primary); }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info {
  opacity: 0;
  transform: translateY(20px);
}

.contact-info.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.contact-info h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.contact-info h2 span { color: var(--accent); }

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: var(--transition);
  font-size: 0.9rem;
}

.contact-link:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  transform: translateX(4px);
}

.contact-link-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-link-text { font-weight: 500; }

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  opacity: 0;
  transform: translateY(20px);
}

.contact-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease 0.15s, transform 0.5s ease 0.15s;
}

.contact-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-card > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 28px;
  line-height: 1.6;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea { min-height: 120px; }

.form-submit {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo img {
  height: 32px;
  width: auto;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.footer-logo img:hover { opacity: 1; }

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

/* ---------- Legal Pages ---------- */
.legal-page {
  min-height: 100vh;
  padding-top: calc(var(--nav-height) + 64px);
  padding-bottom: 80px;
}

.legal-page .container {
  max-width: 820px;
}

.legal-page h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.legal-breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.legal-breadcrumb a { color: var(--accent); }
.legal-breadcrumb a:hover { text-decoration: underline; }

.legal-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 32px 0 12px;
}

.legal-content h3 {
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 20px 0 8px;
}

.legal-content p {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.legal-content ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 12px;
}

.legal-content ul li {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 4px;
}

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

.legal-content a:hover { text-decoration: underline; }

.legal-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

.legal-content strong { color: var(--text-primary); }

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ---------- Mobile / Responsive ---------- */
@media (max-width: 900px) {
  .about-inner,
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .about-stats { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(13, 13, 20, 0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
  }

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

  .nav-links a {
    display: block;
    padding: 12px 16px;
    font-size: 1rem;
  }

  .nav-hamburger { display: flex; }
  .nav-actions { order: -1; }

  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }

  .services-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr 1fr; }

  .about-stats { grid-template-columns: 1fr 1fr; }
  .about-text { transform: none; }
  .about-stats { transform: none; }

  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .about-stats { grid-template-columns: 1fr 1fr; }
}