/* === 1. RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { background-color: var(--color-bg); color: var(--color-text-primary); font-family: var(--font-body); font-size: var(--text-base); line-height: 1.6; overflow-x: hidden; }
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }
table { border-collapse: collapse; }

/* Blueprint grid overlay — sehr zurückhaltend für professionellen Look */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    repeating-linear-gradient(rgba(201,168,76,0.012) 0 1px, transparent 1px 80px),
    repeating-linear-gradient(90deg, rgba(201,168,76,0.012) 0 1px, transparent 1px 80px);
}

/* === 2. CSS CUSTOM PROPERTIES === */
:root {
  --color-bg:            #080808;
  --color-bg-surface:    #111111;
  --color-bg-elevated:   #1a1a1a;
  --color-border:        #242424;
  --color-border-muted:  #181818;

  --color-text-primary:  #f0f0f0;
  --color-text-secondary:#888888;
  --color-text-muted:    #444444;

  --color-accent:        #c9a84c;
  --color-accent-light:  #e8c97a;
  --color-accent-dark:   #9a7830;
  --color-accent-glow:   rgba(201,168,76,0.12);
  --color-accent-glow-strong: rgba(201,168,76,0.25);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --text-xs:   clamp(0.7rem,   1.5vw, 0.8rem);
  --text-sm:   clamp(0.8rem,   2vw,   0.9rem);
  --text-base: clamp(0.95rem,  2vw,   1.05rem);
  --text-lg:   clamp(1.1rem,   2.5vw, 1.25rem);
  --text-xl:   clamp(1.25rem,  3vw,   1.5rem);
  --text-2xl:  clamp(1.5rem,   4vw,   2rem);
  --text-3xl:  clamp(2rem,     5vw,   3rem);
  --text-4xl:  clamp(2.5rem,   7vw,   4.5rem);
  --text-hero: clamp(3rem,     10vw,  7.5rem);

  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 3px rgba(0,0,0,0.7), 0 4px 24px rgba(0,0,0,0.5);
  --shadow-glow-gold: 0 0 0 1px rgba(201,168,76,0.3), 0 8px 32px rgba(201,168,76,0.15);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --nav-height: 68px;
  --max-width:  1200px;
  --section-v:  clamp(88px, 13vw, 140px);
}

/* === LIGHT MODE === */
html[data-theme="light"] {
  --color-bg:            #faf8f4;
  --color-bg-surface:    #ffffff;
  --color-bg-elevated:   #f2ede5;
  --color-border:        rgba(26,21,16,0.1);
  --color-border-muted:  rgba(26,21,16,0.04);
  --color-text-primary:  #1a1510;
  --color-text-secondary:#5e5248;
  --color-text-muted:    #a09488;
  --color-accent:        #8b6514;
  --color-accent-light:  #b08a1a;
  --color-accent-dark:   #5a4009;
  --color-accent-glow:   rgba(139,101,20,0.1);
  --color-accent-glow-strong: rgba(139,101,20,0.2);
  --shadow-card:         0 1px 4px rgba(0,0,0,0.07), 0 4px 20px rgba(0,0,0,0.06);
  --shadow-glow-gold:    0 0 0 1px rgba(139,101,20,0.22), 0 8px 32px rgba(139,101,20,0.1);
}
html[data-theme="light"] body::before {
  background-image:
    repeating-linear-gradient(rgba(26,21,16,0.04) 0 1px, transparent 1px 80px),
    repeating-linear-gradient(90deg, rgba(26,21,16,0.04) 0 1px, transparent 1px 80px);
}
html[data-theme="light"] .site-nav.nav--scrolled {
  background: rgba(250,248,244,0.92) !important;
}
html[data-theme="light"] .nav-mobile-menu {
  background: #faf8f4;
  border-bottom: 1px solid rgba(26,21,16,0.08);
}
html[data-theme="light"] .tag-pill {
  background: rgba(26,21,16,0.07);
  border-color: rgba(26,21,16,0.13);
}
html[data-theme="light"] .tag-pill--accent {
  background: rgba(139,101,20,0.1);
  border-color: rgba(139,101,20,0.25);
}
html[data-theme="light"] .btn-ghost {
  border-color: rgba(26,21,16,0.22);
  color: var(--color-text-primary);
}
html[data-theme="light"] .btn-ghost:hover {
  background: rgba(26,21,16,0.05);
  border-color: rgba(26,21,16,0.3);
}
html[data-theme="light"] .btn-steam {
  background: #1b2838;
  color: #ffffff;
}
html[data-theme="light"] .btn-steam:hover { background: #2a475e; }
html[data-theme="light"] .code-block {
  background: #1c1a16;
  border-color: rgba(255,255,255,0.08);
}
html[data-theme="light"] .code-block-header {
  background: #252220;
  border-bottom-color: rgba(255,255,255,0.06);
}
html[data-theme="light"] .cta-banner {
  background: linear-gradient(135deg, rgba(139,101,20,0.07) 0%, rgba(26,21,16,0.03) 100%);
  border-color: rgba(139,101,20,0.18);
}
html[data-theme="light"] .feature-card { border-color: rgba(26,21,16,0.1); }
html[data-theme="light"] .mode-card    { border-color: rgba(26,21,16,0.1); }
html[data-theme="light"] .mode-card--featured { border-color: rgba(139,101,20,0.35); }
html[data-theme="light"] .mode-badge {
  background: rgba(26,21,16,0.07);
  color: var(--color-text-secondary);
}
html[data-theme="light"] .mode-card--featured .mode-badge {
  background: rgba(139,101,20,0.12);
  color: var(--color-accent);
}
html[data-theme="light"] .req-card     { background: var(--color-bg-surface); }
html[data-theme="light"] .value-card   { background: var(--color-bg-surface); border-color: rgba(26,21,16,0.1); }
html[data-theme="light"] .anatomy-diagram { background: var(--color-bg-elevated); border-color: rgba(26,21,16,0.1); }
html[data-theme="light"] .spec-table tbody tr:nth-child(odd) { background: rgba(26,21,16,0.025); }

/* === 3. TYPOGRAPHY === */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p { max-width: 68ch; }

code, pre { font-family: var(--font-mono); }

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.section-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

/* === 4. LAYOUT UTILITIES === */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}

.section {
  padding-block: var(--section-v);
  position: relative;
  z-index: 1;
}

.section-header {
  margin-bottom: clamp(40px, 6vw, 64px);
}

.section-header p {
  margin-top: 1rem;
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
}

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }

.text-accent { color: var(--color-accent); }
.text-muted   { color: var(--color-text-secondary); }

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin-block: var(--section-v);
}

/* Skip link */
.skip-link {
  position: absolute; left: -9999px; top: 1rem;
  background: var(--color-accent); color: #000;
  padding: 0.5rem 1rem; border-radius: var(--radius-md);
  font-weight: 600; z-index: 1000;
}
.skip-link:focus { left: 1rem; }

/* === 5. NAVIGATION === */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-height);
  display: flex; align-items: center;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.site-nav.nav--scrolled {
  background: rgba(8,8,8,0.85);
  backdrop-filter: blur(16px) saturate(120%);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: var(--max-width);
  margin-inline: auto; padding-inline: clamp(20px, 5vw, 48px);
}

.nav-logo {
  display: flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-display); font-weight: 700;
  font-size: 1.1rem; letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.nav-logo svg { flex-shrink: 0; }

.nav-logo-accent { color: var(--color-accent); }

.nav-links {
  display: flex; align-items: center; gap: 0.25rem;
}

.nav-links a {
  font-size: var(--text-sm); font-weight: 500;
  color: var(--color-text-secondary);
  padding: 0.4rem 0.75rem; border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

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

.nav-links a[aria-current="page"] {
  color: var(--color-text-primary);
}

.nav-links a[aria-current="page"]::after {
  content: ''; position: absolute; bottom: -2px; left: 0.75rem; right: 0.75rem;
  height: 2px; background: var(--color-accent); border-radius: var(--radius-pill);
}

.nav-cta-group { display: flex; align-items: center; gap: 0.75rem; }

.nav-theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}
.nav-theme-toggle:hover {
  background: var(--color-bg-elevated);
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.nav-theme-toggle svg { width: 16px; height: 16px; flex-shrink: 0; }

.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  width: 28px; padding: 4px;
}

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

.nav-mobile-menu {
  display: none; position: fixed;
  inset: var(--nav-height) 0 0 0; z-index: 99;
  background: rgba(8,8,8,0.97);
  backdrop-filter: blur(16px);
  padding: 2rem clamp(20px, 5vw, 48px);
  flex-direction: column; gap: 0.5rem;
  border-top: 1px solid var(--color-border);
}

.nav-mobile-menu.nav-mobile-menu--open { display: flex; }

.nav-mobile-menu a {
  font-size: var(--text-xl); font-family: var(--font-display);
  font-weight: 600; padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border-muted);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}
.nav-mobile-menu a:hover, .nav-mobile-menu a[aria-current="page"] { color: var(--color-accent); }

/* === 6. BUTTONS === */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.5rem; border-radius: var(--radius-md);
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--text-sm); letter-spacing: 0.01em;
  transition: all var(--transition-base);
  white-space: nowrap; cursor: pointer;
  position: relative; overflow: hidden;
}

.btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

.btn-primary {
  background: var(--color-accent);
  color: #0a0a0a;
}
.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(201,168,76,0.35);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-glow);
}

.btn-sm { padding: 0.5rem 1rem; font-size: var(--text-xs); }
.btn-lg { padding: 0.9rem 2rem; font-size: var(--text-base); }

.btn-steam {
  background: #1b2838;
  color: #fff;
  border: 1px solid #2a475e;
}
.btn-steam:hover { background: #2a475e; border-color: #4a90d9; }

/* Tag pills */
.tag-pill {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.3rem 0.8rem; border-radius: var(--radius-pill);
  font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.06em;
  background: var(--color-bg-surface); border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.tag-pill--accent {
  background: var(--color-accent-glow);
  border-color: rgba(201,168,76,0.3);
  color: var(--color-accent);
}

/* === 7. CARDS === */
.feature-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative; overflow: hidden;
}

.feature-card::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: linear-gradient(135deg, var(--color-accent-glow) 0%, transparent 60%);
  opacity: 0; transition: opacity var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-gold);
  border-color: rgba(201,168,76,0.3);
}
.feature-card:hover::before { opacity: 1; }

.feature-card-icon {
  width: 44px; height: 44px; margin-bottom: 1.25rem;
  color: var(--color-accent);
}

.feature-card h3 {
  font-size: var(--text-lg); margin-bottom: 0.5rem;
}
.feature-card p { font-size: var(--text-sm); color: var(--color-text-secondary); max-width: 100%; }

/* Mode cards (deployment) */
.mode-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  display: flex; flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.mode-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border);
  box-shadow: var(--shadow-card);
}

.mode-card--featured {
  border-color: rgba(201,168,76,0.4);
  box-shadow: 0 0 0 1px rgba(201,168,76,0.15), 0 8px 40px rgba(201,168,76,0.12);
  background: linear-gradient(160deg, rgba(201,168,76,0.05) 0%, var(--color-bg-surface) 50%);
}
.mode-card--featured:hover { box-shadow: var(--shadow-glow-gold); }

.mode-badge {
  display: inline-block;
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.15em; text-transform: uppercase;
  padding: 0.25rem 0.65rem; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border); color: var(--color-text-secondary);
  margin-bottom: 1.25rem; width: fit-content;
}
.mode-card--featured .mode-badge {
  border-color: rgba(201,168,76,0.4); color: var(--color-accent);
  background: var(--color-accent-glow);
}

.mode-card-icon { width: 48px; height: 48px; color: var(--color-accent); margin-bottom: 1rem; }

.mode-card h3 { font-size: var(--text-xl); margin-bottom: 0.75rem; }
.mode-card > p { font-size: var(--text-sm); color: var(--color-text-secondary); margin-bottom: 1.5rem; max-width: 100%; }

.feature-list { flex: 1; display: flex; flex-direction: column; gap: 0.5rem; }
.feature-list li {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: var(--text-sm); color: var(--color-text-secondary);
}
.feature-list li::before {
  content: ''; flex-shrink: 0;
  width: 16px; height: 16px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%23c9a84c' d='M13.4 3.6L6 11 2.6 7.6l-1.2 1.2L6 13.4l8.6-8.6z'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* === 8. HERO VARIANTS === */
.hero {
  min-height: 100svh;
  display: flex; align-items: center;
  position: relative; z-index: 1;
  padding-block: calc(var(--nav-height) + 2rem) 4rem;
}

.hero-inner { max-width: 860px; }

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  padding: 0.3rem 0.8rem;
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: var(--radius-pill);
  background: var(--color-accent-glow);
}

.hero h1 {
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-sub {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  max-width: 56ch;
  margin-bottom: 2.5rem;
  line-height: 1.5;
}

.hero-cta-group { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 4rem; }

.hero-stats {
  display: flex; flex-wrap: wrap; gap: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border);
}

.hero-stat-value {
  display: block; font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 700; color: var(--color-accent);
}
.hero-stat-label { font-size: var(--text-xs); color: var(--color-text-muted); letter-spacing: 0.1em; text-transform: uppercase; }

/* Page hero (sub-pages) */
.page-hero {
  padding-block: calc(var(--nav-height) + 3rem) 5rem;
  position: relative; z-index: 1;
  border-bottom: 1px solid var(--color-border);
}

.page-hero h1 { font-size: var(--text-4xl); margin-bottom: 1rem; }
.page-hero p { font-size: var(--text-lg); color: var(--color-text-secondary); max-width: 60ch; }

/* === 9. SECTIONS === */
.alt-bg { background: var(--color-bg-surface); position: relative; }
.alt-bg::before { display: none; }

.section-title-group { display: flex; flex-direction: column; gap: 0.5rem; }

/* Split layout */
.split-layout {
  display: grid; gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
@media (min-width: 768px) { .split-layout { grid-template-columns: 1fr 1fr; } }
.split-layout--reverse > :first-child { order: 2; }
.split-layout--reverse > :last-child  { order: 1; }
@media (max-width: 767px) { .split-layout--reverse > * { order: unset; } }

.split-text h2 { margin-bottom: 1rem; }
.split-text p   { color: var(--color-text-secondary); margin-bottom: 1.5rem; }

/* === 10. PAGE: HOME === */
.features-section { padding-block: var(--section-v); }

.deployment-teaser {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex; flex-direction: column; gap: 1.5rem;
}

@media (min-width: 640px) {
  .deployment-teaser { flex-direction: row; align-items: center; justify-content: space-between; }
}

.deployment-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.deployment-pill {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.45rem 0.9rem; border-radius: var(--radius-pill);
  background: var(--color-bg-elevated); border: 1px solid var(--color-border);
  font-size: var(--text-xs); font-weight: 500; color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}
.deployment-pill:hover { border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-glow); }
.deployment-pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-accent); }

/* Code block */
.code-block {
  background: #0d0d0d;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

.code-block-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
}

.code-block-dots { display: flex; gap: 6px; }
.code-block-dots span {
  width: 12px; height: 12px; border-radius: 50%;
}
.code-block-dots span:nth-child(1) { background: #ff5f57; }
.code-block-dots span:nth-child(2) { background: #febc2e; }
.code-block-dots span:nth-child(3) { background: #28c840; }

.code-block-title {
  font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

.code-block-copy {
  font-size: var(--text-xs); color: var(--color-text-secondary);
  padding: 0.25rem 0.6rem; border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}
.code-block-copy:hover { color: var(--color-accent); border-color: var(--color-accent); }

.code-block pre {
  padding: 1.5rem;
  overflow-x: auto;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: #d4d4d4;
}

.code-block code { display: block; }
.c-comment  { color: #6a9955; }
.c-string   { color: #ce9178; }
.c-keyword  { color: var(--color-accent); }
.c-type     { color: #4ec9b0; }
.c-number   { color: #b5cea8; }
.c-prop     { color: #9cdcfe; }

/* === 11. PAGE: FORMAT === */
.anatomy-diagram {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  font-family: var(--font-mono); font-size: var(--text-sm);
}

.anatomy-file-root {
  display: flex; flex-direction: column; gap: 0.25rem;
  border-left: 2px solid var(--color-accent);
  padding-left: 1rem;
  margin-left: 0.5rem;
}

.anatomy-file-root > .anatomy-row:first-child {
  margin-left: -1.5rem;
  font-weight: 600; color: var(--color-accent);
}

.anatomy-row {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.5rem 0.75rem; border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.anatomy-row:hover { background: var(--color-bg-elevated); }

.anatomy-icon { width: 18px; height: 18px; flex-shrink: 0; }
.anatomy-name { color: var(--color-text-primary); min-width: 160px; }
.anatomy-desc { color: var(--color-text-secondary); font-size: var(--text-xs); }
.anatomy-folder { color: var(--color-accent-light); }

.spec-table {
  width: 100%; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--color-border);
}

.spec-table th, .spec-table td {
  padding: 0.85rem 1.25rem;
  text-align: left; font-size: var(--text-sm);
}

.spec-table thead tr {
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
}

.spec-table thead th { color: var(--color-accent); font-family: var(--font-mono); font-weight: 500; letter-spacing: 0.08em; }

.spec-table tbody tr { border-bottom: 1px solid var(--color-border-muted); }
.spec-table tbody tr:last-child { border-bottom: none; }
.spec-table tbody tr:hover { background: var(--color-bg-surface); }
.spec-table .field { font-family: var(--font-mono); color: var(--color-accent-light); }
.spec-table .type  { font-family: var(--font-mono); color: var(--color-text-secondary); font-size: var(--text-xs); }
.spec-table .desc  { color: var(--color-text-secondary); }

/* Workflow steps */
.workflow-steps {
  display: grid; gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); overflow: hidden;
}

@media (min-width: 640px) { .workflow-steps { grid-template-columns: repeat(4, 1fr); } }

.workflow-step {
  background: var(--color-bg-surface);
  padding: 1.75rem;
  position: relative;
}

.workflow-step-num {
  font-family: var(--font-display); font-size: 2.5rem; font-weight: 700;
  color: var(--color-text-muted); line-height: 1; margin-bottom: 1rem;
}

.workflow-step h4 { margin-bottom: 0.5rem; font-size: var(--text-base); }
.workflow-step p  { font-size: var(--text-sm); color: var(--color-text-secondary); max-width: 100%; }

/* === 12. PAGE: DEPLOYMENT === */
.deployment-grid {
  display: grid; gap: 1.5rem;
}
@media (min-width: 900px) { .deployment-grid { grid-template-columns: repeat(3, 1fr); } }

.comparison-table { width: 100%; }

.comparison-table th, .comparison-table td {
  padding: 1rem 1.25rem; text-align: left;
  border-bottom: 1px solid var(--color-border-muted);
  font-size: var(--text-sm);
}

.comparison-table thead th {
  color: var(--color-text-secondary); font-weight: 500;
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.1em; text-transform: uppercase;
  border-bottom: 1px solid var(--color-border);
}
.comparison-table thead th.th-feature { color: var(--color-text-muted); }
.comparison-table thead th.th-featured { color: var(--color-accent); }

.comparison-table tbody tr:last-child td { border-bottom: none; }
.comparison-table tbody tr:hover td { background: var(--color-bg-elevated); }
.comparison-table .feature-name { color: var(--color-text-secondary); }

.check-yes::before {
  content: '✓';
  color: var(--color-accent); font-weight: 700;
}
.check-no::before {
  content: '—';
  color: var(--color-text-muted);
}
.check-partial { color: var(--color-text-secondary); font-size: var(--text-xs); }

/* === 13. PAGE: STEAM === */
.steam-store-card {
  background: #1b2838;
  border: 1px solid #2a475e;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.steam-store-card-thumb {
  width: 100%; height: 200px;
  background: linear-gradient(135deg, #0d1117 0%, #1a2332 50%, #0d1117 100%);
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid #2a475e;
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 700;
  color: rgba(255,255,255,0.15);
  letter-spacing: 0.1em;
}

.steam-store-card-body { padding: 1.5rem; }
.steam-store-card h3 { color: #c6d4df; margin-bottom: 0.5rem; }
.steam-store-card p { color: #acbccc; font-size: var(--text-sm); max-width: 100%; }
.steam-store-card-meta {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem;
}
.steam-tag {
  font-size: var(--text-xs); padding: 0.2rem 0.6rem;
  background: #2a3f5a; color: #4a90d9; border-radius: var(--radius-sm);
}

.req-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.req-card h3 { font-size: var(--text-lg); margin-bottom: 1.25rem; }
.req-row {
  display: grid; grid-template-columns: 100px 1fr; gap: 0.5rem;
  padding: 0.6rem 0; border-bottom: 1px solid var(--color-border-muted);
  font-size: var(--text-sm);
}
.req-row:last-child { border-bottom: none; }
.req-label { color: var(--color-text-secondary); font-weight: 500; }
.req-value { color: var(--color-text-primary); }

/* === 14. PAGE: ABOUT === */
.values-grid {
  display: grid; gap: 1.5rem;
}
@media (min-width: 640px) { .values-grid { grid-template-columns: repeat(3, 1fr); } }

.value-card {
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-surface);
}
.value-card-icon { width: 40px; height: 40px; color: var(--color-accent); margin-bottom: 1rem; }
.value-card h3 { margin-bottom: 0.5rem; }
.value-card p  { font-size: var(--text-sm); color: var(--color-text-secondary); max-width: 100%; }

.contact-grid {
  display: grid; gap: 3rem;
}
@media (min-width: 768px) { .contact-grid { grid-template-columns: 3fr 2fr; } }

.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: var(--text-sm); font-weight: 500; color: var(--color-text-secondary); }

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--color-text-primary);
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast);
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group select option { background: var(--color-bg-surface); }

.field-error { font-size: var(--text-xs); color: #e05454; display: none; }
.form-group.has-error input,
.form-group.has-error textarea { border-color: #e05454; }
.form-group.has-error .field-error { display: block; }

.form-success {
  text-align: center; padding: 3rem 2rem;
  background: var(--color-bg-surface); border: 1px solid rgba(201,168,76,0.3);
  border-radius: var(--radius-lg);
}
.form-success-icon { font-size: 3rem; margin-bottom: 1rem; }
.form-success h3 { color: var(--color-accent); margin-bottom: 0.5rem; }
.form-success p  { color: var(--color-text-secondary); }

.contact-details { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-detail-item h4 { margin-bottom: 0.25rem; font-size: var(--text-sm); font-weight: 600; color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: 0.1em; }
.contact-detail-item p, .contact-detail-item a { font-size: var(--text-base); color: var(--color-text-primary); }
.contact-detail-item a:hover { color: var(--color-accent); }

/* === 15. FOOTER === */
.site-footer {
  padding-block: clamp(48px, 8vw, 80px) 2rem;
  border-top: 1px solid var(--color-border);
  position: relative; z-index: 1;
}

.footer-grid {
  display: grid; gap: 2.5rem 2rem;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  margin-bottom: 3rem;
}

@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand p { font-size: var(--text-sm); color: var(--color-text-secondary); margin-top: 0.75rem; max-width: 36ch; }

.footer-col h4 {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col ul li a {
  font-size: var(--text-sm); color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}
.footer-col ul li a:hover { color: var(--color-accent); }

.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 1rem;
  align-items: center; justify-content: space-between;
  padding-top: 2rem; border-top: 1px solid var(--color-border-muted);
}

.footer-bottom p { font-size: var(--text-xs); color: var(--color-text-muted); }
.footer-badge {
  font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--color-text-muted); letter-spacing: 0.08em;
}
.footer-badge span { color: var(--color-accent); }

/* Technology badges (DLSS, Vulkan, …) */
.tech-badges {
  display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap;
}
.tech-badge {
  height: 36px; width: auto;
  opacity: 0.7;
  transition: opacity var(--transition-fast), filter var(--transition-fast);
  filter: grayscale(20%);
  border-radius: 4px;
}
.tech-badge:hover { opacity: 1; filter: none; }
html[data-theme="light"] .tech-badge { opacity: 0.6; filter: grayscale(15%) brightness(0.82); }
html[data-theme="light"] .tech-badge:hover { opacity: 1; filter: none; }

/* Tech stack block used on steam / deployment / hero pages */
.tech-stack-block {
  display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap;
  padding: 1rem 1.5rem;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.tech-stack-label {
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-text-muted); white-space: nowrap;
  margin-right: 0.25rem;
}
.tech-stack-block .tech-badge { height: 44px; }

/* CTA banner */
.cta-banner {
  background: var(--color-bg-surface);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 5vw, 4rem);
  text-align: center;
  position: relative; overflow: hidden;
}

.cta-banner::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(201,168,76,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner h2 { margin-bottom: 1rem; }
.cta-banner p { color: var(--color-text-secondary); max-width: 50ch; margin-inline: auto; margin-bottom: 2rem; }
.cta-banner .cta-group { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

/* === 16. ANIMATIONS === */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201,168,76,0); }
  50%       { box-shadow: 0 0 0 8px rgba(201,168,76,0); }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0ms !important; animation-duration: 0ms !important; }
}

/* === 17. MEDIA QUERIES === */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta-group .btn { display: none; }
  .nav-hamburger { display: flex; }
}

@media (max-width: 640px) {
  .hero h1 { letter-spacing: -0.03em; }
  .hero-cta-group { flex-direction: column; }
  .hero-cta-group .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .deployment-teaser { gap: 1.5rem; }

  /* Mobile nav: larger touch targets */
  .nav-mobile-menu { padding: 1.5rem clamp(20px, 5vw, 48px) 3rem; }
  .nav-mobile-menu a { padding: 1rem 0; font-size: var(--text-xl); }
  .nav-mobile-menu .btn { margin-top: 1.5rem !important; padding: 1rem; font-size: var(--text-base); }

  /* Skip link visible */
  .skip-link:focus { left: 1rem; top: 1rem; }
}

/* === 18. HERO QUOTE === */
.hero-quote {
  position: relative; z-index: 1;
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  display: flex; flex-direction: column; align-items: center;
}

.hero-quote-mark {
  font-family: Georgia, serif;
  font-size: 5rem;
  line-height: 0.5;
  color: var(--color-accent);
  opacity: 0.35;
  margin-bottom: 1rem;
  user-select: none;
}

.hero-quote-text {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-style: italic;
  font-weight: 400;
  color: var(--color-text-primary);
  max-width: 72ch;
  line-height: 1.5;
  letter-spacing: -0.01em;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.hero-quote-text.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-quote-author {
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  opacity: 0;
  transition: opacity 0.8s ease 0.2s;
}

.hero-quote-author.is-visible { opacity: 1; }

/* === 20. GALLERY MOSAIC === */
.gallery-section { overflow: hidden; }

.gallery-section .section-header { display: flex; flex-direction: column; }

.gallery-mosaic {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: 220px 220px;
  gap: 10px;
  /* Slight skew on the container for the "tilted tile" feel */
  transform: perspective(1200px) rotateX(2deg);
  transform-origin: center bottom;
  transition: transform 0.6s ease;
}
.gallery-mosaic:hover { transform: perspective(1200px) rotateX(0deg); }

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  grid-column: span 4;
  cursor: pointer;
}

.gallery-item--tall  { grid-row: span 2; grid-column: span 4; }
.gallery-item--wide  { grid-column: span 8; }

.gallery-img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  display: block;
  transition: transform 0.6s ease;
}

.gallery-item:hover .gallery-img { transform: scale(1.04); }

.gallery-item-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 1.25rem;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 100%);
  transform: translateY(4px);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
  transform: translateY(0);
}

.gallery-item-overlay span {
  font-family: var(--font-display); font-size: var(--text-sm);
  font-weight: 600; color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

/* Gold border on hover */
.gallery-item::after {
  content: ''; position: absolute; inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  transition: border-color 0.3s ease;
  pointer-events: none;
}
.gallery-item:hover::after { border-color: rgba(201,168,76,0.4); }

@media (max-width: 768px) {
  .gallery-mosaic {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
    transform: none;
  }
  .gallery-item, .gallery-item--tall, .gallery-item--wide {
    grid-column: span 1; grid-row: span 1;
    height: 160px;
  }
  .gallery-item--tall  { height: 200px; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* Focus */
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

/* === MUSEUM EXPERIENCE MOCKUP === */
.museum-mockup {
  background: #101014;
  border: 1px solid rgba(201,168,76,0.18);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-glow-gold);
  font-family: var(--font-body);
}
.mm-chrome {
  display: flex; align-items: center; gap: 8px;
  padding: 0.6rem 1rem;
  background: #18181c;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.mm-chrome-dots { display: flex; gap: 5px; }
.mm-chrome-dots span {
  width: 10px; height: 10px; border-radius: 50%;
}
.mm-chrome-dots span:nth-child(1) { background: #ff5f57; }
.mm-chrome-dots span:nth-child(2) { background: #febc2e; }
.mm-chrome-dots span:nth-child(3) { background: #28c840; }
.mm-chrome-url {
  flex: 1; background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 6px; padding: 0.25rem 0.75rem;
  font-size: 0.7rem; color: rgba(255,255,255,0.35);
  font-family: var(--font-mono);
}
.mm-body {
  display: grid;
  grid-template-columns: 190px 1fr;
  min-height: 260px;
}
.mm-sidebar {
  background: #0d0d10;
  border-right: 1px solid rgba(255,255,255,0.05);
  padding: 1rem 0;
  display: flex; flex-direction: column;
}
.mm-sidebar-title {
  font-size: 0.62rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: rgba(201,168,76,0.55); padding: 0 1rem 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  margin-bottom: 0.5rem;
}
.mm-room {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.45rem 1rem; font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  transition: background 0.15s, color 0.15s;
  cursor: default;
}
.mm-room-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: rgba(255,255,255,0.15); flex-shrink: 0;
}
.mm-room--active {
  background: rgba(201,168,76,0.08);
  color: rgba(201,168,76,0.9);
}
.mm-room--active .mm-room-dot { background: var(--color-accent); }
.mm-main {
  display: flex; flex-direction: column;
  background: #13131a;
}
.mm-wall {
  flex: 1; display: flex; align-items: center; justify-content: center;
  gap: 1.5rem; padding: 1.5rem 2rem;
}
.mm-artwork {
  background: #1a1a22;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(201,168,76,0.12); font-size: 1.2rem;
  position: relative; flex-shrink: 0;
}
.mm-artwork--lg { width: 100px; height: 120px; }
.mm-artwork--md { width: 76px; height: 96px; }
.mm-artwork--sm { width: 60px; height: 72px; }
.mm-artwork-label {
  position: absolute; bottom: -1.4rem; left: 0; right: 0;
  text-align: center; font-size: 0.58rem;
  color: rgba(255,255,255,0.28); white-space: nowrap; overflow: hidden;
}
.mm-artwork--active {
  border-color: rgba(201,168,76,0.45);
  box-shadow: 0 0 0 1px rgba(201,168,76,0.2);
}
.mm-artwork--active .mm-artwork-label { color: rgba(201,168,76,0.7); }
.mm-info {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.6rem 1.25rem;
  background: rgba(0,0,0,0.3);
  border-top: 1px solid rgba(255,255,255,0.05);
  font-size: 0.68rem; color: rgba(255,255,255,0.35);
}
.mm-info-title { color: rgba(255,255,255,0.7); font-weight: 500; font-size: 0.72rem; }
.mm-info-meta { color: rgba(201,168,76,0.6); }
.mm-info-vr {
  display: flex; align-items: center; gap: 4px;
  background: rgba(201,168,76,0.1); border: 1px solid rgba(201,168,76,0.2);
  border-radius: 4px; padding: 3px 8px;
  color: rgba(201,168,76,0.8); font-size: 0.62rem; font-weight: 500;
}

html[data-theme="light"] .museum-mockup {
  background: #f0ede7;
  border-color: rgba(139,101,20,0.2);
}
html[data-theme="light"] .mm-chrome { background: #e5e1d8; border-bottom-color: rgba(0,0,0,0.08); }
html[data-theme="light"] .mm-chrome-url { background: rgba(0,0,0,0.05); border-color: rgba(0,0,0,0.1); color: rgba(0,0,0,0.35); }
html[data-theme="light"] .mm-sidebar { background: #e9e5de; border-right-color: rgba(0,0,0,0.08); }
html[data-theme="light"] .mm-sidebar-title { color: rgba(139,101,20,0.6); border-bottom-color: rgba(0,0,0,0.06); }
html[data-theme="light"] .mm-room { color: rgba(0,0,0,0.4); }
html[data-theme="light"] .mm-room-dot { background: rgba(0,0,0,0.2); }
html[data-theme="light"] .mm-room--active { background: rgba(139,101,20,0.1); color: rgba(139,101,20,0.9); }
html[data-theme="light"] .mm-main { background: #f5f1ea; }
html[data-theme="light"] .mm-artwork { background: #e8e3d8; border-color: rgba(0,0,0,0.1); }
html[data-theme="light"] .mm-info { background: rgba(0,0,0,0.04); border-top-color: rgba(0,0,0,0.07); color: rgba(0,0,0,0.4); }
html[data-theme="light"] .mm-info-title { color: rgba(0,0,0,0.7); }
html[data-theme="light"] .mm-artwork-label { color: rgba(0,0,0,0.3); }

/* === HERO DEVICE SPLIT (large screens) === */
@media (min-width: 1280px) {
  .hero .container {
    display: grid;
    grid-template-columns: 1fr 460px;
    gap: clamp(3rem, 4vw, 5rem);
    align-items: center;
  }
  .hero-inner { max-width: none; }
}
.hero-device { display: none; }
@media (min-width: 1280px) {
  .hero-device {
    display: block;
    transform: perspective(1200px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.5s ease;
  }
  .hero-device:hover { transform: perspective(1200px) rotateY(-2deg) rotateX(1deg); }
}
.hero-device-wrap {
  background: #0c0c14;
  border: 1px solid rgba(201,168,76,0.28);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(201,168,76,0.06), 0 32px 80px rgba(0,0,0,0.75), 0 6px 24px rgba(201,168,76,0.1);
}
.hd-chrome {
  display: flex; align-items: center; gap: 6px;
  padding: 0.55rem 0.9rem;
  background: #17171f;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.hd-dots { display: flex; gap: 4px; }
.hd-dots span { width: 9px; height: 9px; border-radius: 50%; }
.hd-dots span:nth-child(1) { background: #ff5f57; }
.hd-dots span:nth-child(2) { background: #febc2e; }
.hd-dots span:nth-child(3) { background: #28c840; }
.hd-url {
  flex: 1; background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 5px; padding: 0.22rem 0.65rem;
  font-size: 0.67rem; color: rgba(255,255,255,0.28);
  font-family: var(--font-mono);
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.hd-scene {
  height: 300px; position: relative; overflow: hidden;
  background: #0c0c14;
}
.hd-nav {
  position: absolute; left: 0; top: 0; bottom: 0; width: 114px;
  background: rgba(8,8,14,0.65);
  border-right: 1px solid rgba(255,255,255,0.05);
  backdrop-filter: blur(8px);
  padding: 0.75rem 0;
  display: flex; flex-direction: column;
  z-index: 2;
}
.hd-nav-title {
  font-size: 0.54rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(201,168,76,0.45); padding: 0 0.75rem 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.04); margin-bottom: 0.4rem;
}
.hd-nav-item {
  display: flex; align-items: center; gap: 5px;
  padding: 0.38rem 0.75rem; font-size: 0.64rem;
  color: rgba(255,255,255,0.3); font-family: var(--font-body);
}
.hd-nav-dot { width: 5px; height: 5px; border-radius: 50%; background: rgba(255,255,255,0.15); flex-shrink: 0; }
.hd-nav-item--active { color: rgba(201,168,76,0.85); }
.hd-nav-item--active .hd-nav-dot { background: var(--color-accent); }
.hd-ceiling {
  position: absolute; top: 0; left: 0; right: 0; height: 22%;
  background: linear-gradient(180deg, #08080e 0%, transparent 100%);
  pointer-events: none;
}
.hd-floor {
  position: absolute; bottom: 0; left: 15%; right: 15%; height: 36%;
  background: linear-gradient(180deg, rgba(20,20,30,0.4) 0%, rgba(15,15,22,0.8) 100%);
  clip-path: polygon(0 100%, 100% 100%, 90% 0%, 10% 0%);
  pointer-events: none;
}
.hd-glow {
  position: absolute; left: 58%; top: 42%; transform: translate(-50%,-50%);
  width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(201,168,76,0.1) 0%, transparent 65%);
  pointer-events: none;
}
.hd-artworks {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  gap: 2rem; padding: 0.5rem 1rem 2.5rem 7.5rem;
  z-index: 1;
}
.hd-art {
  background: rgba(201,168,76,0.05); border: 1px solid rgba(201,168,76,0.2);
  border-radius: 3px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: rgba(201,168,76,0.1); font-size: 1.4rem;
  position: relative;
}
.hd-art::before {
  content: ''; position: absolute; inset: -5px;
  border: 1px solid rgba(201,168,76,0.07); border-radius: 4px;
}
.hd-art--sm { width: 58px; height: 76px; }
.hd-art--md { width: 84px; height: 108px; }
.hd-art--lg { width: 62px; height: 84px; }
.hd-art--active { border-color: rgba(201,168,76,0.55); box-shadow: 0 0 24px rgba(201,168,76,0.14); }
.hd-art--active::before { border-color: rgba(201,168,76,0.18); }
.hd-info {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 2;
  padding: 0.65rem 1rem;
  background: linear-gradient(to top, rgba(8,8,14,0.95) 55%, transparent 100%);
  display: flex; justify-content: space-between; align-items: flex-end;
}
.hd-info-title { font-size: 0.7rem; font-weight: 600; color: rgba(255,255,255,0.82); font-family: var(--font-display); }
.hd-info-meta { font-size: 0.58rem; color: rgba(201,168,76,0.7); margin-top: 1px; }
.hd-info-badge {
  font-size: 0.59rem; font-family: var(--font-mono);
  background: rgba(201,168,76,0.12); border: 1px solid rgba(201,168,76,0.28);
  border-radius: 4px; padding: 3px 7px; color: rgba(201,168,76,0.85);
  flex-shrink: 0;
}

html[data-theme="light"] .hero-device-wrap { background: #f0ede7; border-color: rgba(139,101,20,0.25); }
html[data-theme="light"] .hd-chrome { background: #e5e1d8; border-bottom-color: rgba(0,0,0,0.07); }
html[data-theme="light"] .hd-url { background: rgba(0,0,0,0.05); border-color: rgba(0,0,0,0.09); color: rgba(0,0,0,0.28); }
html[data-theme="light"] .hd-scene { background: #ece7de; }
html[data-theme="light"] .hd-nav { background: rgba(240,237,231,0.7); border-right-color: rgba(0,0,0,0.07); }
html[data-theme="light"] .hd-nav-item { color: rgba(0,0,0,0.35); }
html[data-theme="light"] .hd-nav-dot { background: rgba(0,0,0,0.2); }
html[data-theme="light"] .hd-art { background: rgba(139,101,20,0.06); border-color: rgba(139,101,20,0.2); }
html[data-theme="light"] .hd-art--active { border-color: rgba(139,101,20,0.5); }
html[data-theme="light"] .hd-info { background: linear-gradient(to top, rgba(240,237,231,0.95) 55%, transparent 100%); }
html[data-theme="light"] .hd-info-title { color: rgba(0,0,0,0.75); }
html[data-theme="light"] .hd-floor { background: linear-gradient(180deg, rgba(210,204,192,0.4) 0%, rgba(190,184,172,0.7) 100%); }

/* === SCREENSHOT STRIP === */
.ss-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 960px) { .ss-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px)  { .ss-grid { grid-template-columns: 1fr; } }

.ss-item { display: flex; flex-direction: column; gap: 0.7rem; }
.ss-item:nth-child(even) { margin-top: 28px; }
@media (max-width: 960px) { .ss-item:nth-child(even) { margin-top: 0; } }
.ss-item:hover .ss-device { box-shadow: 0 0 0 1px rgba(201,168,76,0.32), 0 20px 48px rgba(0,0,0,0.5); }

.ss-device {
  background: #0c0c14; border: 1px solid rgba(201,168,76,0.18);
  border-radius: 10px; overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s ease;
}
.ss-chrome {
  display: flex; align-items: center; gap: 5px;
  padding: 0.42rem 0.65rem;
  background: #15151e; border-bottom: 1px solid rgba(255,255,255,0.05);
}
.ss-dots { display: flex; gap: 3.5px; }
.ss-dots span { width: 7px; height: 7px; border-radius: 50%; }
.ss-dots span:nth-child(1) { background: rgba(255,95,87,0.55); }
.ss-dots span:nth-child(2) { background: rgba(254,188,46,0.55); }
.ss-dots span:nth-child(3) { background: rgba(40,200,64,0.55); }
.ss-url { flex: 1; font-size: 0.6rem; color: rgba(255,255,255,0.22); font-family: var(--font-mono); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }

.ss-screen { height: 178px; position: relative; overflow: hidden; background: #0c0c14; }

/* Screen 1: Gallery room */
.ss-screen--room { background: linear-gradient(175deg, #0e0e1a 0%, #09090f 100%); }
.ss-screen--room::after {
  content: ''; position: absolute; bottom: 0; left: 10%; right: 10%; height: 32%;
  background: linear-gradient(180deg, transparent, rgba(201,168,76,0.025));
  clip-path: polygon(0 100%, 100% 100%, 82% 0%, 18% 0%);
  pointer-events: none;
}
.ss-room-arts {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  gap: 0.9rem; padding: 0.75rem 0.75rem 2rem;
}
.ss-room-art {
  background: rgba(201,168,76,0.055); border: 1px solid rgba(201,168,76,0.18);
  border-radius: 2px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: rgba(201,168,76,0.1); font-size: 0.85rem;
}
.ss-room-art--a { width: 36px; height: 50px; }
.ss-room-art--b { width: 50px; height: 66px; border-color: rgba(201,168,76,0.42); box-shadow: 0 0 14px rgba(201,168,76,0.1); }
.ss-room-art--c { width: 32px; height: 44px; }
.ss-room-art--d { width: 26px; height: 36px; opacity: 0.7; }

/* Screen 2: Artwork detail */
.ss-screen--detail {
  background: #0d0d12;
  display: grid; grid-template-columns: 2fr 3fr;
}
.ss-detail-img {
  background: rgba(201,168,76,0.05); border-right: 1px solid rgba(255,255,255,0.05);
  display: flex; align-items: center; justify-content: center;
  color: rgba(201,168,76,0.1); font-size: 1.6rem; position: relative;
}
.ss-detail-img::before {
  content: ''; position: absolute; inset: 7px;
  border: 1px solid rgba(201,168,76,0.1); border-radius: 2px;
}
.ss-detail-info {
  padding: 0.7rem 0.65rem; display: flex; flex-direction: column; gap: 0.35rem;
}
.ss-detail-title { font-size: 0.67rem; font-weight: 600; color: rgba(255,255,255,0.78); font-family: var(--font-display); }
.ss-detail-artist { font-size: 0.59rem; color: rgba(201,168,76,0.68); }
.ss-detail-line { height: 5px; border-radius: 2px; background: rgba(255,255,255,0.07); margin-top: 1px; }
.ss-detail-line--sm { width: 68%; }
.ss-detail-line--md { width: 88%; }
.ss-detail-line--lg { width: 53%; }
.ss-detail-audio {
  display: flex; align-items: center; gap: 4px; margin-top: 3px;
  background: rgba(201,168,76,0.1); border: 1px solid rgba(201,168,76,0.22);
  border-radius: 3px; padding: 3px 5px;
  font-size: 0.57rem; color: rgba(201,168,76,0.8); width: fit-content;
}

/* Screen 3: VR mode */
.ss-screen--vr {
  background: radial-gradient(ellipse 70% 60% at 52% 46%, #14141f 20%, #07070e 100%);
}
.ss-screen--vr::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 55% 72% at 50% 50%, transparent 42%, rgba(0,0,0,0.85) 100%);
  pointer-events: none;
}
.ss-vr-glow {
  position: absolute; left: 50%; top: 42%; transform: translate(-50%,-50%);
  width: 90px; height: 90px; border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(201,168,76,0.1) 0%, transparent 68%);
}
.ss-vr-lines {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 1;
}
.ss-vr-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: rgba(201,168,76,0.65); box-shadow: 0 0 8px rgba(201,168,76,0.45);
}

/* Screen 4: Curator app */
.ss-screen--curator { background: #0c0c13; display: flex; flex-direction: column; }
.ss-curator-header {
  padding: 0.48rem 0.7rem; border-bottom: 1px solid rgba(255,255,255,0.05);
  display: flex; align-items: center; justify-content: space-between; flex-shrink: 0;
}
.ss-curator-title { font-size: 0.6rem; color: rgba(255,255,255,0.45); }
.ss-curator-btn {
  font-size: 0.54rem; padding: 2px 6px;
  background: rgba(201,168,76,0.12); border: 1px solid rgba(201,168,76,0.28);
  border-radius: 3px; color: rgba(201,168,76,0.8);
}
.ss-curator-cols {
  display: grid; grid-template-columns: 20px 2fr 1fr 1fr;
  padding: 0.28rem 0.7rem; flex-shrink: 0;
  font-size: 0.53rem; color: rgba(255,255,255,0.22);
  letter-spacing: 0.08em; text-transform: uppercase;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.ss-curator-row {
  display: grid; grid-template-columns: 20px 2fr 1fr 1fr;
  padding: 0.32rem 0.7rem;
  border-bottom: 1px solid rgba(255,255,255,0.025);
  align-items: center; flex-shrink: 0;
}
.ss-curator-thumb {
  width: 13px; height: 13px; border-radius: 2px;
  background: rgba(201,168,76,0.1); border: 1px solid rgba(201,168,76,0.14);
}
.ss-curator-name { font-size: 0.58rem; color: rgba(255,255,255,0.5); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.ss-curator-tag {
  font-size: 0.5rem; padding: 1px 4px; border-radius: 2px; width: fit-content;
  background: rgba(201,168,76,0.08); color: rgba(201,168,76,0.6); font-family: var(--font-mono);
}
.ss-curator-size { font-size: 0.56rem; color: rgba(255,255,255,0.25); }

.ss-label {
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent);
}
.ss-caption { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.5; }

/* Light mode overrides: screenshot strip */
html[data-theme="light"] .ss-device { background: #f0ede7; border-color: rgba(139,101,20,0.15); }
html[data-theme="light"] .ss-chrome { background: #e5e1d8; border-bottom-color: rgba(0,0,0,0.07); }
html[data-theme="light"] .ss-url { color: rgba(0,0,0,0.28); }
html[data-theme="light"] .ss-screen { background: #eae5db; }
html[data-theme="light"] .ss-screen--room { background: linear-gradient(175deg, #ddd8cc 0%, #d4cec2 100%); }
html[data-theme="light"] .ss-room-art { background: rgba(139,101,20,0.07); border-color: rgba(139,101,20,0.2); }
html[data-theme="light"] .ss-room-art--b { border-color: rgba(139,101,20,0.45); }
html[data-theme="light"] .ss-screen--detail { background: #eae5db; }
html[data-theme="light"] .ss-detail-img { background: rgba(139,101,20,0.07); border-right-color: rgba(0,0,0,0.07); }
html[data-theme="light"] .ss-detail-title { color: rgba(0,0,0,0.72); }
html[data-theme="light"] .ss-detail-line { background: rgba(0,0,0,0.1); }
html[data-theme="light"] .ss-screen--curator { background: #eae5db; }
html[data-theme="light"] .ss-curator-title { color: rgba(0,0,0,0.42); }
html[data-theme="light"] .ss-curator-name { color: rgba(0,0,0,0.5); }
html[data-theme="light"] .ss-curator-size { color: rgba(0,0,0,0.28); }
html[data-theme="light"] .ss-curator-cols { color: rgba(0,0,0,0.22); border-bottom-color: rgba(0,0,0,0.07); }
html[data-theme="light"] .ss-curator-row { border-bottom-color: rgba(0,0,0,0.05); }

/* CTA banner diagonal pattern enhancement */
.cta-banner::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  background: repeating-linear-gradient(-45deg, rgba(201,168,76,0.018) 0 1px, transparent 1px 52px);
  pointer-events: none;
}
html[data-theme="light"] .cta-banner::after {
  background: repeating-linear-gradient(-45deg, rgba(139,101,20,0.03) 0 1px, transparent 1px 52px);
}

/* === i18n Language Switching === */
.i18n-en { display: none; }
html[data-lang="en"] .i18n-de { display: none; }
html[data-lang="en"] .i18n-en { display: revert; }

.nav-lang-toggle {
  display: flex; align-items: center; gap: 0.3rem;
  padding: 0 0.6rem; height: 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}
.nav-lang-toggle:hover {
  background: var(--color-bg-elevated);
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.nav-lang-toggle .lang-flag { font-size: 15px; line-height: 1; }

/* Founder initials avatar */
.founder-avatar {
  width: 88px; height: 88px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(201,168,76,0.15) 0%, rgba(201,168,76,0.05) 100%);
  border: 2px solid rgba(201,168,76,0.38);
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  overflow: hidden; position: relative;
}
.founder-avatar-initials {
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 700;
  color: var(--color-accent); letter-spacing: -0.02em;
  position: relative; z-index: 1;
}
.founder-avatar::before {
  content: ''; position: absolute; inset: 0; border-radius: 50%;
  background: radial-gradient(ellipse at 40% 35%, rgba(201,168,76,0.18) 0%, transparent 65%);
}
html[data-theme="light"] .founder-avatar {
  background: linear-gradient(135deg, rgba(139,101,20,0.12) 0%, rgba(139,101,20,0.04) 100%);
  border-color: rgba(139,101,20,0.35);
}

/* =====================================================
   MOBILE IMPROVEMENTS
   ===================================================== */

/* Tablets (≤ 768px) */
@media (max-width: 768px) {
  /* Reduce section vertical padding */
  :root { --section-v: clamp(56px, 10vw, 88px); }

  /* Page hero sub-pages */
  .page-hero {
    padding-block: calc(var(--nav-height) + 2rem) 3.5rem;
  }
  .page-hero h1 { font-size: var(--text-3xl); }
  .page-hero p  { font-size: var(--text-base); }

  /* Section headers */
  h2 { font-size: var(--text-2xl); }
  .section-header { margin-bottom: clamp(32px, 6vw, 56px); }

  /* Spec / comparison tables: force horizontal scroll */
  .spec-table th, .spec-table td { font-size: var(--text-xs); padding: 0.6rem 0.75rem; }

  /* Feature cards tighter */
  .feature-card { padding: 1.25rem 1.5rem; }

  /* Grids tighter */
  .grid-2, .grid-3 { gap: 1rem; }

  /* Contact grid */
  .contact-grid { gap: 2rem; }

  /* Deployment grid */
  .deployment-grid { gap: 1rem; }

  /* Footer badges wrap cleanly */
  .footer-bottom > div { gap: 1rem; }
}

/* Small phones (≤ 640px) */
@media (max-width: 640px) {
  /* Hero text */
  .hero-sub { font-size: var(--text-base); margin-bottom: 2rem; }
  .hero-cta-group { margin-bottom: 2.5rem; }

  /* Hero stats: compact */
  .hero-stats { gap: 1.25rem; padding-top: 1.5rem; }
  .hero-stat-value { font-size: var(--text-xl); }
  .hero-stat-label { font-size: 0.65rem; }

  /* Tech stack badges in hero */
  .tech-stack-block { padding: 0.75rem 1rem; gap: 0.6rem; flex-wrap: wrap; }
  .tech-stack-block .tech-badge { height: 30px; }
  .tech-badges .tech-badge { height: 28px; }

  /* Workflow steps: 2 columns instead of 4/6 */
  .workflow-steps { grid-template-columns: repeat(2, 1fr) !important; }

  /* Gallery: taller items on small screens */
  .gallery-item, .gallery-item--tall, .gallery-item--wide { height: 180px; }

  /* Split layout: reverse order fix */
  .split-layout { gap: 2rem; }

  /* Mode cards */
  .mode-card { padding: 1.5rem; }

  /* Process steps */
  .process-step { padding: 1.25rem; }

  /* Anatomy diagram */
  .anatomy-diagram { font-size: var(--text-xs); }

  /* Code blocks: smaller font */
  .code-block pre { font-size: 0.75rem; }

  /* CTA banner */
  .cta-banner { padding: 2rem 1.5rem; }
  .cta-group { flex-direction: column; }
  .cta-group .btn { width: 100%; justify-content: center; }
}

/* Very small phones (≤ 480px) */
@media (max-width: 480px) {
  /* Gallery: single column */
  .gallery-mosaic {
    grid-template-columns: 1fr !important;
    grid-template-rows: auto !important;
  }
  .gallery-item,
  .gallery-item--tall,
  .gallery-item--wide {
    height: 200px !important;
    grid-column: span 1 !important;
    grid-row: span 1 !important;
  }

  /* Nav: keep toggles compact */
  .nav-lang-toggle { width: 30px; height: 30px; padding: 0 0.4rem; }
  .nav-theme-toggle { width: 30px; height: 30px; }
  .nav-lang-toggle .lang-flag { font-size: 13px; }

  /* Hero stat-value: shorter display */
  .hero-stat-value { font-size: var(--text-lg); }

  /* Page hero h1 */
  .page-hero h1 { font-size: var(--text-2xl); }

  /* Pilot hero */
  .pilot-hero { padding-block: calc(var(--nav-height) + 1.5rem) 3rem; min-height: unset; }

  /* Footer badges: stack */
  .tech-badges { gap: 0.4rem; }
  .tech-badges .tech-badge { height: 24px; }

  /* Value / feature cards */
  .value-card, .feature-card { padding: 1.25rem; }

  /* Grids: always single column */
  .grid-3 { grid-template-columns: 1fr; }

  /* Section eyebrow */
  .section-eyebrow { font-size: 0.65rem; }
}

/* =====================================================
   SCROLL-TO-TOP
   ===================================================== */
.scroll-top {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 50;
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base),
              color var(--transition-fast), border-color var(--transition-fast),
              background var(--transition-fast);
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
.scroll-top svg { width: 18px; height: 18px; flex-shrink: 0; }
.scroll-top--visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.scroll-top:hover { color: var(--color-accent); border-color: var(--color-accent); background: var(--color-accent-glow); }
@media (max-width: 640px) { .scroll-top { bottom: 1rem; right: 1rem; width: 40px; height: 40px; } }

/* =====================================================
   ANNOUNCEMENT BAR CLOSE
   ===================================================== */
.announcement-bar { position: relative; }
.bar-close {
  position: absolute; right: 0.75rem; top: 50%; transform: translateY(-50%);
  width: 28px; height: 28px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: none;
  color: var(--color-text-muted); font-size: 1rem; line-height: 1;
  cursor: pointer; transition: color var(--transition-fast), background var(--transition-fast);
  flex-shrink: 0;
}
.bar-close:hover { color: var(--color-text-primary); background: rgba(255,255,255,0.06); }

/* =====================================================
   LIGHTBOX
   ===================================================== */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.93);
  backdrop-filter: blur(10px) saturate(80%);
  -webkit-backdrop-filter: blur(10px) saturate(80%);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease;
}
.lightbox--open { opacity: 1; pointer-events: auto; }

.lightbox-content {
  max-width: min(92vw, 1300px);
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
}
.lightbox-img {
  max-width: 100%; max-height: 82vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 32px 96px rgba(0,0,0,0.8);
  transition: opacity 0.18s ease;
}
.lightbox-caption {
  font-family: var(--font-mono); font-size: var(--text-xs);
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--color-accent); margin: 0; opacity: 0.8;
}
.lightbox-close {
  position: fixed; top: 1.25rem; right: 1.25rem; z-index: 201;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  color: #fff; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background 0.15s ease;
}
.lightbox-close:hover { background: rgba(255,255,255,0.18); }
.lightbox-prev, .lightbox-next {
  position: fixed; top: 50%; transform: translateY(-50%); z-index: 201;
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12);
  color: #fff; font-size: 1.6rem; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background 0.15s ease;
  user-select: none;
}
.lightbox-prev { left: 1rem; }
.lightbox-next { right: 1rem; }
.lightbox-prev:hover, .lightbox-next:hover { background: rgba(255,255,255,0.18); }
@media (max-width: 480px) {
  .lightbox-prev { left: 0.25rem; }
  .lightbox-next { right: 0.25rem; }
  .lightbox-prev, .lightbox-next { width: 40px; height: 40px; font-size: 1.3rem; }
}

/* =====================================================
   STICKY DEMO CTA
   ===================================================== */
.sticky-demo {
  position: fixed; bottom: 1.5rem; left: 1.5rem; z-index: 50;
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  background: var(--color-bg-surface);
  border: 1px solid rgba(201,168,76,0.4);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--text-sm);
  text-decoration: none;
  box-shadow: 0 4px 24px rgba(0,0,0,0.45);
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base),
              background var(--transition-fast), border-color var(--transition-fast);
}
.sticky-demo svg { flex-shrink: 0; }
.sticky-demo--visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.sticky-demo:hover { background: var(--color-accent-glow); border-color: var(--color-accent); }
html[data-theme="light"] .sticky-demo { background: #fff; box-shadow: 0 4px 24px rgba(0,0,0,0.15); }
@media (max-width: 640px) { .sticky-demo { display: none; } }

/* =====================================================
   COOKIE BANNER
   ===================================================== */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 150;
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  padding: 1rem 0;
  transform: translateY(100%);
  transition: transform 0.35s ease;
  box-shadow: 0 -4px 32px rgba(0,0,0,0.45);
}
.cookie-banner--visible { transform: translateY(0); }
.cookie-banner-text {
  font-size: var(--text-sm); color: var(--color-text-secondary);
  max-width: 64ch; margin: 0; line-height: 1.5;
}
.cookie-banner-text strong { color: var(--color-text-primary); }
html[data-theme="light"] .cookie-banner { box-shadow: 0 -4px 32px rgba(0,0,0,0.1); }

/* =====================================================
   PAINTING MOCKUP UTILITIES
   ===================================================== */

/* Base canvas — fills parent absolutely */
.paint-canvas {
  position: absolute; inset: 0;
  border-radius: 1px; overflow: hidden;
  pointer-events: none;
}

/* Impressionist water / Monet Seerosen */
.paint-monet {
  background:
    radial-gradient(ellipse 60% 30% at 30% 40%, #a0c8d8 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 70% 60%, #78b0cc 0%, transparent 50%),
    linear-gradient(178deg,
      #b0ccec 0%, #7aaed8 12%, #5890c0 24%,
      #8ab4d0 36%, #c0dce8 48%, #60a0b8 60%,
      #98c0d0 72%, #d0e5d8 84%, #88b4a0 100%);
}

/* Symbolist gold / Klimt */
.paint-klimt {
  background:
    radial-gradient(ellipse 40% 60% at 55% 35%, rgba(255,240,160,0.4) 0%, transparent 55%),
    linear-gradient(128deg,
      #b88e2c 0%, #ddc058 18%, #a07426 34%,
      #c8a848 50%, #8e6218 66%, #d6b64c 82%, #eed87c 100%);
}

/* Expressionist warm / Schiele */
.paint-schiele {
  background:
    radial-gradient(ellipse 45% 55% at 40% 30%, rgba(220,170,120,0.3) 0%, transparent 50%),
    linear-gradient(152deg,
      #d6a474 0%, #b48454 20%, #966844 38%,
      #c89e78 55%, #744c36 70%, #a47454 84%, #c08e6c 100%);
}

/* Abstract / Kandinsky */
.paint-kandinsky {
  background:
    radial-gradient(circle 30% at 25% 30%, #3474c4 0%, transparent 50%),
    radial-gradient(circle 25% at 70% 60%, #b42424 0%, transparent 45%),
    radial-gradient(circle 20% at 50% 70%, #e4c424 0%, transparent 40%),
    linear-gradient(118deg,
      #2644a4 0%, #b42424 20%, #e4c424 38%,
      #3474c4 55%, #9e1e1e 70%, #d4ae1c 85%, #1c3674 100%);
}

/* Impressionist landscape / green */
.paint-landscape {
  background:
    radial-gradient(ellipse 70% 30% at 50% 18%, #a4c4e4 0%, transparent 60%),
    linear-gradient(172deg,
      #5684c4 0%, #a4c4e4 14%, #ccc494 26%,
      #84a454 42%, #5c7440 58%, #445430 74%, #344424 100%);
}

/* Dark old master portrait */
.paint-portrait {
  background:
    radial-gradient(ellipse 35% 50% at 45% 35%, rgba(180,120,60,0.35) 0%, transparent 55%),
    linear-gradient(146deg,
      #1e1008 0%, #543820 20%, #886038 38%,
      #482c10 54%, #341e10 70%, #664828 85%, #180a04 100%);
}

/* =====================================================
   VR SCREEN UI ELEMENTS
   ===================================================== */

/* Artwork hanging in VR space */
.vr-scene-artwork {
  position: absolute;
  width: 36%; height: 50%;
  top: 15%; left: 32%;
  border: 1.5px solid rgba(201,168,76,0.55);
  border-radius: 2px;
  overflow: hidden;
}
.vr-scene-artwork::before {
  content: ''; position: absolute; inset: -5px;
  border: 1px solid rgba(201,168,76,0.18); border-radius: 3px;
  pointer-events: none;
}

/* Title label below artwork */
.vr-scene-label {
  position: absolute;
  bottom: 22px; left: 50%;
  transform: translateX(-50%);
  font-size: 0.44rem; font-family: var(--font-body);
  color: rgba(255,255,255,0.6); white-space: nowrap;
  background: rgba(0,0,0,0.6); border: 1px solid rgba(255,255,255,0.1);
  padding: 1px 5px; border-radius: 2px;
}

/* Horizon separator line */
.vr-horizon-line {
  position: absolute; left: 5%; right: 5%; top: 58%;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%, rgba(100,150,255,0.18) 20%,
    rgba(120,160,255,0.28) 50%,
    rgba(100,150,255,0.18) 80%, transparent 100%);
}

/* VR crosshair reticle */
.vr-reticle {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 16px; height: 16px;
}
.vr-reticle::before,
.vr-reticle::after {
  content: ''; position: absolute;
  background: rgba(255,255,255,0.5);
}
.vr-reticle::before { width: 1px; height: 7px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.vr-reticle::after  { width: 7px; height: 1px; top: 50%; left: 50%; transform: translate(-50%,-50%); }

/* HUD status chip at bottom */
.vr-hud-chip {
  position: absolute; bottom: 7px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 0.42rem;
  color: rgba(255,255,255,0.5); white-space: nowrap;
  background: rgba(0,0,0,0.6); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 3px; padding: 2px 6px;
}