/* =========================================================================
   Strukturion IT — Komponenten (Nav, Buttons, Cards, Hero, Grid)
   ========================================================================= */

/* --- Navigation --- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-2) var(--gutter);
  background: color-mix(in srgb, var(--brand-bg) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: var(--border-hair);
}
.brand { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; color: var(--brand-text); }
.brand .logo-mark { width: 28px; height: 28px; }
.brand .it { color: var(--brand-accent); }
.nav-links { display: flex; gap: var(--space-3); align-items: center; }
.nav-links a { color: var(--brand-text-soft); font-size: var(--fs-small); }
.nav-links a:hover { color: var(--brand-text); }
@media (max-width: 640px) { .nav-links a:not(.btn) { display: none; } }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.25rem; border-radius: var(--radius-button);
  font-family: var(--font-body); font-weight: 600; font-size: var(--fs-small);
  cursor: pointer; border: 1px solid transparent; transition: all 0.2s var(--ease-out);
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-deep); color: var(--on-accent); transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: var(--brand-border); color: var(--brand-text); }
.btn-ghost:hover { border-color: var(--brand-accent); color: var(--brand-text); }

/* --- Hero --- */
.hero { position: relative; padding-block: clamp(4rem, 12vh, 9rem); overflow: hidden; }
.hero-grid { position: absolute; inset: 0; z-index: 0; opacity: 0.4;
  background-image:
    linear-gradient(var(--brand-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--brand-border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, #000 30%, transparent 75%);
}
.hero-glow { position: absolute; z-index: 0; top: -20%; left: 50%; transform: translateX(-50%);
  width: 700px; height: 500px; pointer-events: none;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 22%, transparent), transparent 62%);
  filter: blur(30px); }
.hero-content { position: relative; z-index: 1; max-width: 780px; }
.hero h1 { font-size: var(--fs-display); margin-block: var(--space-2) var(--space-3); }
.hero .lead { max-width: 56ch; margin-bottom: var(--space-4); }
.hero-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }

/* --- Card / Grid --- */
.grid { display: grid; gap: var(--space-3); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card {
  background: var(--brand-surface); border: var(--border-hair);
  border-radius: var(--radius-card); padding: var(--space-4);
  transition: border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}
.card:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--brand-border)); transform: translateY(-3px); }
.card .icon { width: 40px; height: 40px; color: var(--brand-accent); margin-bottom: var(--space-2); }
.card h3 { margin-bottom: 0.5rem; }
.card p { font-size: var(--fs-small); }

/* --- Stat / Counter --- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: var(--space-3); }
.stat { text-align: center; padding: var(--space-3); }
.stat .num { font-family: var(--font-display); font-size: var(--fs-h1); color: var(--brand-text); font-weight: 600; }
.stat .lbl { font-family: var(--font-mono); font-size: var(--fs-label); text-transform: uppercase; letter-spacing: 0.08em; color: var(--brand-text-soft); }

/* --- Media-Mounts (Lottie / Video / 3D) --- */
.media-frame {
  background: var(--brand-surface); border: var(--border-hair);
  border-radius: var(--radius-card); aspect-ratio: 16 / 9; overflow: hidden;
  display: grid; place-items: center; color: var(--brand-text-soft);
  font-family: var(--font-mono); font-size: var(--fs-small);
}
.media-frame video { width: 100%; height: 100%; object-fit: cover; }

/* --- CTA-Band --- */
.cta-band { background: var(--brand-surface); border: var(--border-hair); border-radius: var(--radius-card);
  padding: var(--space-5); text-align: center; }
.cta-band h2 { margin-bottom: var(--space-2); }

/* --- Footer --- */
.footer { border-top: var(--border-hair); padding-block: var(--space-4); margin-top: var(--space-6); }
.footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
.footer p { font-size: var(--fs-small); }

/* --- Animations-Startzustaende (nur wenn JS/GSAP aktiv) --- */
.js .reveal { opacity: 0; transform: translateY(24px); }
.js .reveal-stagger > * { opacity: 0; transform: translateY(20px); }
/* Ohne JS oder bei reduced-motion sind alle Inhalte sofort sichtbar (kein FOUC/Blackout). */