/* CBS-IT — Glassmorphism redesign — shared styles */

:root {
  --bg-0: #050b18;
  --bg-1: #081428;
  --bg-2: #0d1f3a;
  --ink: #eaf3ff;
  --ink-dim: #9bb3d4;
  --ink-soft: #6c87a8;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --glass: rgba(255, 255, 255, 0.04);
  --glass-strong: rgba(255, 255, 255, 0.08);

  /* brand cyan/blue from existing site */
  --cyan: #22d3ee;
  --cyan-2: #38bdf8;
  --blue: #3b82f6;
  --blue-2: #6366f1;
  --accent: var(--cyan);

  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 28px;

  --shadow-glow: 0 0 80px rgba(34, 211, 238, 0.18), 0 0 200px rgba(59, 130, 246, 0.12);

  --font-sans: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-display: "Instrument Serif", "Playfair Display", Georgia, serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, monospace;
}

[data-theme="light"] {
  --bg-0: #f4f7fc;
  --bg-1: #eaf0fa;
  --bg-2: #dfe7f3;
  --ink: #0a1628;
  --ink-dim: #41557a;
  --ink-soft: #6f86a8;
  --line: rgba(10, 22, 40, 0.08);
  --line-strong: rgba(10, 22, 40, 0.16);
  --glass: rgba(255, 255, 255, 0.55);
  --glass-strong: rgba(255, 255, 255, 0.75);
  --shadow-glow: 0 0 80px rgba(34, 211, 238, 0.22), 0 0 200px rgba(99, 102, 241, 0.14);
}

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

html, body {
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  cursor: none;
}

@media (max-width: 900px) { body { cursor: auto; } }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
img { max-width: 100%; display: block; }

/* ─── Ambient background ─────────────────────────────────── */
.ambient {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(34, 211, 238, 0.18), transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 100%, rgba(99, 102, 241, 0.15), transparent 60%),
    radial-gradient(ellipse 60% 60% at 0% 60%, rgba(59, 130, 246, 0.12), transparent 60%),
    var(--bg-0);
}

[data-theme="light"] .ambient {
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(34, 211, 238, 0.35), transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 100%, rgba(99, 102, 241, 0.22), transparent 60%),
    radial-gradient(ellipse 60% 60% at 0% 60%, rgba(59, 130, 246, 0.18), transparent 60%),
    var(--bg-0);
}

.grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  opacity: 0.4;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ─── Custom cursor ──────────────────────────────────────── */
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  border-radius: 999px;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}
.cursor-dot {
  width: 6px; height: 6px;
  background: #fff;
  transition: width .25s, height .25s, background .25s;
}
.cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  transition: width .35s cubic-bezier(.2,.8,.2,1), height .35s cubic-bezier(.2,.8,.2,1), background .25s, border-color .25s;
}
.cursor-ring.hovering {
  width: 64px; height: 64px;
  background: rgba(34, 211, 238, 0.12);
  border-color: rgba(34, 211, 238, 0.6);
}
@media (max-width: 900px) { .cursor-dot, .cursor-ring { display: none; } }

/* ─── Nav ────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 18px; left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex; align-items: center; gap: 6px;
  padding: 8px 8px 8px 22px;
  background: var(--glass);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.06);
}
.nav-logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  padding-right: 20px;
  border-right: 1px solid var(--line);
  margin-right: 6px;
}
.nav-logo-mark {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: conic-gradient(from 220deg, var(--cyan), var(--blue-2), var(--cyan));
  position: relative;
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
}
.nav-logo-mark::after {
  content: "";
  position: absolute; inset: 4px;
  background: var(--bg-0);
  border-radius: 5px;
  display: flex;
}
.nav-logo-mark::before {
  content: ""; position: absolute; inset: 7px;
  z-index: 2;
  background: linear-gradient(135deg, var(--cyan), var(--blue-2));
  clip-path: polygon(0 0, 100% 0, 100% 35%, 35% 35%, 35% 65%, 100% 65%, 100% 100%, 0 100%);
  border-radius: 2px;
}
.nav a, .nav .nav-cta {
  font-size: 14px;
  padding: 9px 16px;
  border-radius: 999px;
  color: var(--ink-dim);
  transition: color .2s, background .2s;
  position: relative;
}
.nav a:hover { color: var(--ink); }
.nav a.active { color: var(--ink); background: var(--glass-strong); }
.nav .nav-cta {
  background: linear-gradient(135deg, var(--cyan), var(--blue-2));
  color: #001018;
  font-weight: 600;
  margin-left: 4px;
  transition: transform .25s, box-shadow .25s;
}
.nav .nav-cta:hover {
  box-shadow: 0 0 30px rgba(34, 211, 238, 0.6);
}

@media (max-width: 720px) {
  /* Pill-Nav auf Mobile: nur Logo + Burger */
  .nav { padding: 6px 6px 6px 14px; gap: 4px; }
  .nav-logo { padding-right: 0; border-right: none; margin-right: 0; }
  .nav-logo span { display: none; }
  .nav-link { display: none !important; }
  .nav-cta-pill { display: none !important; }
}

/* ─── Hamburger button ───────────────────────────────────── */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--line-strong);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: background .25s, border-color .25s;
}
.nav-burger:hover {
  background: var(--glass-strong);
  border-color: var(--cyan);
}
.nav-burger span {
  display: block;
  width: 14px; height: 1.5px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform .35s cubic-bezier(.16,1,.3,1), opacity .25s;
  transform-origin: center;
}
/* Animated X when open */
.nav-burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 720px) { .nav-burger { display: flex; } }

/* ─── Full-screen mobile overlay ─────────────────────────── */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 98; /* below nav (z-index 100) */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: var(--bg-0);
  /* subtle gradient for depth */
  background-image:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(34, 211, 238, 0.12), transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 100%, rgba(99, 102, 241, 0.1), transparent 60%);
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s cubic-bezier(.16,1,.3,1);
  /* hidden on desktop always */
  display: none;
}

@media (max-width: 720px) {
  .nav-overlay { display: flex; }
}

.nav-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.nav-overlay-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
  text-align: center;
  padding: 20px;
  transform: translateY(24px);
  transition: transform .45s cubic-bezier(.16,1,.3,1);
}
.nav-overlay.open .nav-overlay-inner {
  transform: translateY(0);
}

/* Big italic link list */
.nav-overlay-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-overlay-links a {
  font-family: var(--font-display);
  font-size: clamp(40px, 13vw, 72px);
  font-style: italic;
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--ink-dim);
  transition: color .2s, -webkit-text-fill-color .2s;
  display: block;
  padding: 4px 0;
}
.nav-overlay-links a:hover {
  color: var(--ink);
  -webkit-text-fill-color: var(--ink);
}
.nav-overlay-links a.active {
  background: linear-gradient(135deg, var(--cyan), var(--blue-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* CTA button in overlay */
.nav-overlay-cta {
  font-size: 15px !important;
  padding: 14px 28px !important;
}

/* Phone / email */
.nav-overlay-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 24px;
  width: 100%;
  text-align: center;
}
.nav-overlay-meta a {
  color: var(--ink-soft);
  transition: color .2s;
}
.nav-overlay-meta a:hover { color: var(--cyan); }

/* ─── Layout primitives ──────────────────────────────────── */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 600px) { .wrap { padding: 0 20px; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 7px 14px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(12px);
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(48px, 8vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
.h1 em {
  font-style: italic;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--blue-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.h2 em {
  font-style: italic;
  background: linear-gradient(135deg, var(--cyan), var(--blue-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.55;
  color: var(--ink-dim);
  max-width: 56ch;
  text-wrap: pretty;
}

/* ─── Glass card ─────────────────────────────────────────── */
.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 20px 60px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
}
.glass::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  opacity: 0.6;
}

[data-theme="light"] .glass {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 20px 60px rgba(10, 22, 40, 0.08);
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 999px;
  transition: transform .2s, box-shadow .25s;
  position: relative;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--blue-2) 100%);
  color: #001018;
  box-shadow: 0 10px 40px rgba(34, 211, 238, 0.35);
}
.btn-primary:hover { box-shadow: 0 14px 50px rgba(34, 211, 238, 0.55); }
.btn-ghost {
  background: var(--glass);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  backdrop-filter: blur(12px);
}
.btn-ghost:hover { background: var(--glass-strong); }
.btn .arrow { transition: transform .25s; display: inline-block; }
.btn:hover .arrow { transform: translateX(4px); }

/* ─── Footer ─────────────────────────────────────────────── */
.footer {
  position: relative;
  margin-top: 120px;
  padding: 80px 0 40px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.2));
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

.footer h4 {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 16px;
  font-weight: 600;
}
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer ul a { color: var(--ink-dim); font-size: 14.5px; transition: color .2s; }
.footer ul a:hover { color: var(--cyan); }
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 28px;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.footer-brand p { color: var(--ink-dim); font-size: 14.5px; line-height: 1.6; max-width: 36ch; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 32px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--ink-soft);
  flex-wrap: wrap; gap: 16px;
}
.footer-bottom a { color: var(--ink-soft); transition: color .2s; }
.footer-bottom a:hover { color: var(--ink); }

/* ─── Reveal on scroll ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s cubic-bezier(.16,1,.3,1), transform 1s cubic-bezier(.16,1,.3,1);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }

/* ─── Marquee ─────────────────────────────────────────────── */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  padding: 32px 0;
  margin: 80px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: flex; gap: 64px;
  animation: marquee 40s linear infinite;
  width: max-content;
}
.marquee-item {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  font-style: italic;
  color: var(--ink-soft);
  white-space: nowrap;
  display: inline-flex; align-items: center; gap: 64px;
}
.marquee-item::after {
  content: "✦";
  font-size: 0.5em;
  color: var(--cyan);
}
@keyframes marquee {
  to { transform: translateX(calc(-50% - 32px)); }
}

/* ─── Common page-top spacing ─────────────────────────────── */
.page-top { padding-top: 140px; }

/* utility */
.mono { font-family: var(--font-mono); font-size: 0.9em; letter-spacing: -0.01em; }
.muted { color: var(--ink-dim); }

/* ─── Global mobile overrides ────────────────────────────── */
@media (max-width: 480px) {
  /* Nav: kompakter auf kleinen Screens */
  .nav { padding: 5px 5px 5px 10px; gap: 1px; max-width: calc(100vw - 24px); }
  .nav a, .nav .nav-cta { padding: 6px 9px; font-size: 11.5px; }
  .nav-logo { padding-right: 8px; margin-right: 1px; font-size: 12px; }

  /* Buttons: volle Breite & kleiner auf Mobilgeräten */
  .btn { padding: 13px 20px; font-size: 14px; }

  /* Footer: kompakter */
  .footer { margin-top: 60px; padding: 60px 0 32px; }
  .footer-bottom { font-size: 12px; }

  /* Marquee: kleinere Schrift */
  .marquee { padding: 20px 0; margin: 50px 0; }
  .marquee-item { font-size: clamp(28px, 9vw, 40px); }
  .marquee-track { gap: 40px; }
  .marquee-item::after { gap: 40px; }
}

@media (max-width: 360px) {
  .nav a.hide-mobile { display: none; }
  .nav { gap: 0; }
  .nav a, .nav .nav-cta { padding: 5px 7px; font-size: 11px; }
}