/* ==========================================================================
   Probot — Design-System: Schwarz-Weiß + Glassmorphism
   Basis: ui-ux-pro-max Palette "Photography Studio" (Schwarz-Weiß-Kontrast)
   + Glassmorphism-Style (Frosted Glass, backdrop-blur) + Typografie-Pairing
   "Modern Professional" (Poppins/Open Sans).
   ========================================================================== */

:root {
  --color-background: #000000;
  --color-foreground: #FAFAFA;
  --color-muted-foreground: #9AA3AF;
  --color-border: rgba(255, 255, 255, 0.14);

  --glass-bg: rgba(255, 255, 255, 0.055);
  --glass-bg-strong: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.16);
  --blur-amount: 18px;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Open Sans', sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 104px;

  --radius: 22px;
  --transition: 240ms cubic-bezier(.2,.8,.2,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--space-2);
}

h1 { font-size: clamp(2.4rem, 5.2vw, 4rem); font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 var(--space-2); }

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

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: #fff; color: #000; padding: var(--space-1) var(--space-2);
  z-index: 1000; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Ambient background: dezent bewegter Verlauf ---------- */

.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 20%, rgba(255,255,255,0.07), transparent 40%),
    radial-gradient(circle at 85% 15%, rgba(255,255,255,0.05), transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(255,255,255,0.05), transparent 50%);
  pointer-events: none;
}

/* ---------- Glass ---------- */

.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur-amount));
  -webkit-backdrop-filter: blur(var(--blur-amount));
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.45);
}

@supports not (backdrop-filter: blur(1px)) {
  .glass { background: rgba(18, 18, 18, 0.94); }
}

/* ---------- Navigation ---------- */

.nav-glass {
  position: sticky; top: 0; z-index: 100;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(var(--blur-amount));
  -webkit-backdrop-filter: blur(var(--blur-amount));
  border-bottom: 1px solid var(--color-border);
  transition: transform 300ms ease;
}

/* Headroom.js: Nav verschwindet beim Runterscrollen, kommt beim Hochscrollen
   sofort wieder – Klassen werden von headroom.js automatisch gesetzt. */
.nav-glass.headroom--unpinned {
  transform: translateY(-100%);
}
.nav-glass.headroom--pinned {
  transform: translateY(0);
}
.nav-glass.headroom--top {
  background: rgba(0, 0, 0, 0.3);
}

@media (prefers-reduced-motion: reduce) {
  .nav-glass {
    transition: none;
    transform: none !important;
  }
}

.nav-inner {
  max-width: 1140px; margin: 0 auto;
  padding: var(--space-2) var(--space-3);
  display: flex; align-items: center; justify-content: space-between;
}

.brand {
  font-family: var(--font-heading); font-weight: 700;
  font-size: 1.5rem; letter-spacing: 0.01em;
  display: flex; align-items: center; gap: 8px;
}

.brand-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #fff; display: inline-block;
}

.nav-links {
  list-style: none; display: flex; align-items: center; gap: var(--space-3);
  margin: 0; padding: 0;
}

.nav-links a {
  font-weight: 500; padding: var(--space-1) 0; min-height: 44px;
  display: flex; align-items: center; position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute; left: 0; bottom: 6px;
  width: 0; height: 2px; background: #fff;
  transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a[aria-current="page"]::after {
  width: 100%;
}

.nav-links a[aria-current="page"] {
  color: #fff;
}

.nav-cta {
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: var(--space-1) var(--space-3) !important;
}
.nav-cta::after { display: none; }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; background: transparent;
  border: 1px solid var(--color-border); border-radius: 10px; cursor: pointer;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: #fff; margin: 0 auto; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 var(--space-3);
  border-radius: 999px; font-weight: 600; font-family: var(--font-heading);
  transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: pointer; border: 1px solid transparent;
}

.btn-primary { background: #fff; color: #000; }
.btn-primary:hover, .btn-primary:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255,255,255,0.15);
}

.btn-ghost {
  background: var(--glass-bg); border: 1px solid var(--glass-border); color: #fff;
  backdrop-filter: blur(var(--blur-amount)); -webkit-backdrop-filter: blur(var(--blur-amount));
}
.btn-ghost:hover, .btn-ghost:focus-visible {
  background: var(--glass-bg-strong); transform: translateY(-3px);
}

a:focus-visible, button:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }

/* ---------- Layout ---------- */

.section { max-width: 1140px; margin: 0 auto; padding: var(--space-6) var(--space-3); }
.section-tight { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto var(--space-4); }

.hero {
  position: relative; padding: var(--space-6) var(--space-3) var(--space-5);
  display: flex; justify-content: center; text-align: center;
}

.hero-inner { max-width: 820px; }

.eyebrow {
  text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.8rem;
  color: var(--color-muted-foreground); font-weight: 600; margin-bottom: var(--space-1);
}

.hero-text {
  font-size: 1.15rem; color: rgba(250,250,250,0.85);
  max-width: 60ch; margin: 0 auto var(--space-3);
}

.hero-actions { display: flex; gap: var(--space-2); justify-content: center; flex-wrap: wrap; }

/* ---------- Cards ---------- */

.card-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
}

.card {
  padding: var(--space-3);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  background: var(--glass-bg-strong);
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
}
.card p { color: rgba(250,250,250,0.8); font-size: 0.98rem; }
.card-note {
  font-size: 0.85rem; color: var(--color-muted-foreground);
  border-top: 1px solid var(--color-border); padding-top: var(--space-1); margin-top: var(--space-1);
}
.card-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 600; font-family: var(--font-heading); margin-top: var(--space-1);
}
.card-link svg { transition: transform var(--transition); }
.card-link:hover svg { transform: translateX(4px); }

/* ---------- Pricing ---------- */

.pricing-panel { padding: var(--space-4); }
.pricing-intro { color: var(--color-muted-foreground); font-size: 0.95rem; }
.pricing-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3); margin-top: var(--space-3);
}
.pricing-tier {
  background: rgba(255,255,255,0.04); border: 1px solid var(--color-border);
  border-radius: 14px; padding: var(--space-2); text-align: center;
  transition: transform var(--transition), background var(--transition);
}
.pricing-tier:hover { transform: translateY(-4px); background: rgba(255,255,255,0.07); }
.tier-name { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; color: var(--color-muted-foreground); margin: 0 0 4px; }
.tier-price { font-family: var(--font-heading); font-size: 1.9rem; font-weight: 700; margin: 0 0 var(--space-1); }
.tier-price span { font-size: 0.9rem; font-weight: 400; color: var(--color-muted-foreground); }
.tier-desc { font-size: 0.88rem; color: rgba(250,250,250,0.75); margin: 0; }

/* ---------- Differentiators ---------- */

.differentiators { padding: var(--space-4); }
.differentiators ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.differentiators li { position: relative; padding-left: var(--space-3); color: rgba(250,250,250,0.85); }
.differentiators li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 8px; height: 8px; border-radius: 50%; background: #fff;
}

/* ---------- Referenzen / Portfolio Grid ---------- */

.portfolio-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-3);
}

.portfolio-card {
  padding: 0; overflow: hidden; display: flex; flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}
.portfolio-card:hover { transform: translateY(-6px); box-shadow: 0 20px 50px rgba(0,0,0,0.55); }

.portfolio-media {
  height: 160px;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.02));
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-heading); font-weight: 700; font-size: 1.6rem;
  color: rgba(255,255,255,0.5); letter-spacing: 0.04em;
}

.portfolio-body { padding: var(--space-3); flex: 1; display: flex; flex-direction: column; }

.portfolio-tag {
  display: inline-block; align-self: flex-start;
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em;
  padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--color-border); color: var(--color-muted-foreground);
  margin-bottom: var(--space-1);
}
.portfolio-tag.live { color: #fff; border-color: rgba(255,255,255,0.4); }

.portfolio-diff {
  margin: var(--space-2) 0 0; padding: var(--space-2) 0 0;
  border-top: 1px solid var(--color-border);
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2);
  font-size: 0.85rem;
}
.portfolio-diff dt { color: var(--color-muted-foreground); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; }
.portfolio-diff dd { margin: 2px 0 0; }

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

.about-panel, .contact-panel {
  padding: var(--space-5) var(--space-4); max-width: 780px; margin: 0 auto;
}
.contact-panel { text-align: center; }
.contact-panel p { color: rgba(250,250,250,0.8); }
.contact-email { margin-top: var(--space-2); font-size: 1.05rem; }

.value-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-2); margin-top: var(--space-3);
}
.value-item {
  background: rgba(255,255,255,0.04); border: 1px solid var(--color-border);
  border-radius: 14px; padding: var(--space-2);
}
.value-item h3 { font-size: 1.05rem; margin-bottom: 4px; }
.value-item p { font-size: 0.92rem; color: rgba(250,250,250,0.75); margin: 0; }

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

.site-footer {
  text-align: center; padding: var(--space-4) var(--space-2);
  color: var(--color-muted-foreground); font-size: 0.85rem;
  border-top: 1px solid var(--color-border);
}
.site-footer a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- GSAP-Startzustand: verhindert Flackern, ist aber ohne JS
   trotzdem sichtbar (kein Layout-Shift, nur inline-Werte per JS) ---------- */

[data-reveal] { will-change: transform, opacity; }

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch;
    background: rgba(0,0,0,0.94);
    backdrop-filter: blur(var(--blur-amount)); -webkit-backdrop-filter: blur(var(--blur-amount));
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-2) var(--space-3); gap: var(--space-1);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-cta { text-align: center; }
  .hero-inner, .about-panel, .contact-panel, .pricing-panel, .differentiators { padding-left: var(--space-1); padding-right: var(--space-1); }
}

@media (min-width: 721px) {
  .nav-links { display: flex !important; }
}