/* ── RESET & BASE ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  --bg:       #050816;
  --bg2:      #080d20;
  --accent:   #4cc9f0;
  --blue:     #2563eb;
  --text:     #ffffff;
  --muted:    #9aa8c7;
  --card-bg:  rgba(255,255,255,0.03);
  --card-bdr: rgba(255,255,255,0.08);
  --radius:   20px;
  --transition: 0.35s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Sora', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

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

.container { width: 90%; max-width: 1280px; margin: auto; }

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s var(--transition), transform 0.65s var(--transition);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── HEADER ── */
header {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  background: rgba(5,8,22,0.75);
  border-bottom: 1px solid var(--card-bdr);
  transition: background var(--transition);
}
header.scrolled {
  background: rgba(5,8,22,0.95);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
}
.logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--blue), var(--accent));
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 20px;
}

.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  color: #c6d0eb;
  font-size: 14px;
  font-weight: 500;
  position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width var(--transition);
  border-radius: 2px;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  width: 26px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: rgba(5,8,22,0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.mobile-nav.open { opacity: 1; pointer-events: all; }
.mobile-nav-link {
  font-size: 28px;
  font-weight: 700;
  color: var(--muted);
  transition: color var(--transition);
}
.mobile-nav-link:hover { color: var(--accent); }
.mobile-nav-close {
  position: absolute;
  top: 24px; right: 28px;
  background: none; border: none;
  color: var(--muted);
  font-size: 28px;
  cursor: pointer;
  transition: color var(--transition);
}
.mobile-nav-close:hover { color: var(--text); }

/* ── HERO SLIDER ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.slider {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.slide.active { opacity: 1; }

.slider-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(5,8,22,0.88) 0%,
    rgba(5,8,22,0.75) 60%,
    rgba(5,8,22,0.9) 100%
  );
  z-index: 1;
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--card-bdr);
  color: white;
  width: 48px; height: 48px;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(8px);
  display: grid; place-items: center;
}
.slider-btn:hover { background: rgba(76,201,240,0.2); border-color: var(--accent); }
.slider-btn.prev { left: 20px; }
.slider-btn.next { right: 20px; }

.slider-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 8px;
}
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.dot.active { background: var(--accent); width: 24px; border-radius: 4px; }

.hero .container { position: relative; z-index: 5; width: 90%; max-width: 1280px; margin: auto; }

.hero-content { max-width: 820px; padding: 60px 0; }

.badge {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid rgba(76,201,240,0.35);
  border-radius: 999px;
  margin-bottom: 22px;
  color: var(--accent);
  background: rgba(76,201,240,0.08);
  font-size: 13px;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
}

.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.chip {
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--card-bdr);
  color: #dbe4ff;
  font-size: 13px;
}

.hero h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.08;
  margin-bottom: 24px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--blue), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  color: #c6d0eb;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 640px;
}

.hero-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 44px;
}
.hero-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-bdr);
  border-radius: 16px;
  padding: 20px;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.hero-card:hover { border-color: rgba(76,201,240,0.3); transform: translateY(-4px); }
.hero-card h3 { color: var(--accent); font-size: 16px; margin-bottom: 8px; }
.hero-card p { color: #b8c4e0; font-size: 14px; line-height: 1.6; }

.buttons { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  padding: 15px 28px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--accent));
  color: white;
  box-shadow: 0 0 28px rgba(37,99,235,0.35);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 40px rgba(37,99,235,0.5); }
.btn-secondary {
  border: 1px solid var(--card-bdr);
  color: white;
  background: rgba(255,255,255,0.04);
}
.btn-secondary:hover { background: rgba(255,255,255,0.08); border-color: rgba(76,201,240,0.3); }

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.scroll-arrow {
  width: 22px; height: 22px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  animation: bounce 1.8s infinite;
}
@keyframes bounce {
  0%,100% { transform: rotate(45deg) translateY(0); opacity:1; }
  50%      { transform: rotate(45deg) translateY(8px); opacity:0.4; }
}

/* ── STATS BAND ── */
.stats-band {
  background: rgba(37,99,235,0.07);
  border-top: 1px solid var(--card-bdr);
  border-bottom: 1px solid var(--card-bdr);
  padding: 48px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat-number {
  font-size: 52px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: 'JetBrains Mono', monospace;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label { color: var(--muted); font-size: 14px; }

/* ── SECTIONS ── */
section { padding: 110px 0; }

.section-title {
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  margin-bottom: 16px;
  text-align: center;
}
.section-text {
  color: var(--muted);
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
  line-height: 1.8;
  font-size: 16px;
}

/* ── GRID 3-SPALTIG (max) ── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* ── CARDS ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-bdr);
  border-radius: 22px;
  padding: 36px;
  transition: var(--transition);
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 140px; height: 140px;
  background: radial-gradient(circle, rgba(76,201,240,0.06), transparent 70%);
  border-radius: 50%;
  transition: var(--transition);
}
.card:hover { transform: translateY(-8px); border-color: rgba(76,201,240,0.35); box-shadow: 0 20px 50px rgba(76,201,240,0.07); }
.card h3 { margin-bottom: 14px; font-size: 20px; color: var(--accent); }
.card p { color: #b8c4e0; line-height: 1.8; font-size: 15px; }
.card-emoji { font-size: 52px; margin-bottom: 18px; }
.card-num {
  font-size: 42px;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
  color: rgba(76,201,240,0.15);
  margin-bottom: 16px;
  line-height: 1;
}

/* ── AKKORDEON / LEISTUNGEN ── */
.accordion { display: flex; flex-direction: column; gap: 14px; }

.acc-item {
  background: var(--card-bg);
  border: 1px solid var(--card-bdr);
  border-radius: 18px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.acc-item.open { border-color: rgba(76,201,240,0.4); }

.acc-header {
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 28px;
  cursor: pointer;
  text-align: left;
  transition: background var(--transition);
}
.acc-header:hover { background: rgba(255,255,255,0.03); }
.acc-icon { font-size: 24px; flex-shrink: 0; }
.acc-title { flex: 1; font-size: 18px; font-weight: 600; }
.acc-arrow { font-size: 18px; color: var(--accent); transition: transform var(--transition); }
.acc-item.open .acc-arrow { transform: rotate(180deg); }

.acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(.4,0,.2,1), padding 0.3s;
  padding: 0 28px;
}
.acc-item.open .acc-body {
  max-height: 600px;
  padding: 0 28px 28px;
}
.acc-body p { color: #b8c4e0; line-height: 1.8; margin-bottom: 18px; font-size: 15px; }

.acc-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(76,201,240,0.08);
  border: 1px solid rgba(76,201,240,0.2);
  color: var(--accent);
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  transition: var(--transition);
}
.tag:hover { background: rgba(76,201,240,0.18); }

/* ── KONTAKT / FORM ── */
.contact-box {
  background: linear-gradient(135deg, rgba(37,99,235,0.12), rgba(76,201,240,0.06));
  border: 1px solid rgba(76,201,240,0.18);
  border-radius: 28px;
  padding: 64px;
  text-align: center;
}
.contact-box h2 { font-size: clamp(28px,4vw,46px); font-weight: 800; margin-bottom: 16px; }
.contact-box > p { color: #c6d0eb; margin-bottom: 36px; line-height: 1.8; }

/* Alerts */
.alert {
  padding: 16px 22px;
  border-radius: 12px;
  margin-bottom: 28px;
  font-weight: 500;
  font-size: 15px;
}
.alert-success { background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.3); color: #86efac; }
.alert-error   { background: rgba(239,68,68,0.12);  border: 1px solid rgba(239,68,68,0.3);  color: #fca5a5; }

/* Vorlagen */
.template-section { margin-bottom: 40px; }
.template-label { color: var(--muted); margin-bottom: 14px; font-size: 14px; font-weight: 500; }
.templates { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.tpl-btn {
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--card-bdr);
  color: #c6d0eb;
  font-size: 13px;
  cursor: pointer;
  font-family: 'Sora', sans-serif;
  transition: var(--transition);
}
.tpl-btn:hover, .tpl-btn.active {
  background: rgba(76,201,240,0.1);
  border-color: rgba(76,201,240,0.4);
  color: var(--accent);
}

/* Form */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 720px;
  margin: 0 auto 20px;
  text-align: left;
}
.form-input {
  width: 100%;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--card-bdr);
  background: rgba(255,255,255,0.05);
  color: white;
  font-size: 15px;
  font-family: 'Sora', sans-serif;
  transition: var(--transition);
  outline: none;
}
.form-input:focus {
  border-color: rgba(76,201,240,0.5);
  background: rgba(255,255,255,0.07);
  box-shadow: 0 0 0 3px rgba(76,201,240,0.1);
}
.form-input::placeholder { color: rgba(255,255,255,0.3); }
.form-textarea { grid-column: 1 / -1; resize: vertical; min-height: 160px; }

.dsgvo-check {
  grid-column: 1 / -1;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  cursor: pointer;
}
.dsgvo-check input[type="checkbox"] {
  width: 18px; height: 18px;
  accent-color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.dsgvo-check a { color: var(--accent); }

.form-submit {
  grid-column: 1 / -1;
  justify-content: center;
  font-size: 16px;
}
.btn-arrow { transition: transform var(--transition); }
.form-submit:hover .btn-arrow { transform: translateX(4px); }

.form-note {
  color: rgba(154,168,199,0.6);
  font-size: 12px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

/* ── IMPRESSUM ── */
.impressum-section { background: var(--bg2); }
.impressum-box {
  background: var(--card-bg);
  border: 1px solid var(--card-bdr);
  border-radius: 24px;
  padding: 56px;
}
.impressum-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.impressum-block h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  font-family: 'JetBrains Mono', monospace;
}
.impressum-block p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* ── FOOTER ── */
footer {
  padding: 36px 0;
  border-top: 1px solid var(--card-bdr);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo { font-size: 18px; font-weight: 800; color: var(--accent); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--muted); font-size: 14px; transition: color var(--transition); }
.footer-links a:hover { color: var(--accent); }
.footer-copy { color: rgba(154,168,199,0.5); font-size: 13px; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-cards { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .burger { display: flex; }

  .hero-cards { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-textarea { grid-column: 1; }
  .form-submit { grid-column: 1; }
  .dsgvo-check { grid-column: 1; }

  .contact-box { padding: 36px 20px; }
  .impressum-box { padding: 32px 20px; }
  .impressum-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }

  .slider-btn { display: none; }

  section { padding: 80px 0; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero-chips { display: none; }
  .acc-header { padding: 18px; }
}