:root {
  /* Typography */
  --gs-font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --gs-font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --gs-font-heading: var(--gs-font-display);
  --gs-line-height: 1.6;
  --gs-line-height-heading: 1.2;
  --gs-font-size-body: 1rem;
  --gs-font-size-h1: clamp(2rem, 3.6vw, 3.6rem);
  --gs-font-size-h2: clamp(1.5rem, 2.5vw, 2.25rem);
  --gs-font-size-h3: 1.5rem;
  --gs-font-size-h4: 1.25rem;
  --gs-font-size-h5: 1rem;
  --gs-font-size-h6: 0.875rem;

  /* Spacing scale */
  --gs-space-0: 0px;
  --gs-space-1: 4px;
  --gs-space-2: 8px;
  --gs-space-3: 12px;
  --gs-space-4: 16px;
  --gs-space-5: 20px;
  --gs-space-6: 24px;
  --gs-space-7: 32px;
  --gs-space-8: 40px;
  --gs-space-9: 48px;
  --gs-space-10: 64px;

  /* Border radius */
  --gs-radius-xs: 6px;
  --gs-radius-sm: 10px;
  --gs-radius-md: 14px;
  --gs-radius-lg: 18px;
  --gs-radius-pill: 999px;

  /* Color palette — copper-on-black */
  --gs-color-primary: #d96a32;
  --gs-color-text: #e4ecfa;    /* General body text (slightly off-white for readability) */
  --gs-color-bg: #050507;
  --gs-color-surface: #0c1221;
  --gs-color-surface-strong: #0f172a;
  --gs-color-muted-surface: #111a2f;
  --gs-color-border: rgba(255, 120, 54, 0.14);
  --gs-color-border-strong: #2d3c52;
  --gs-color-subtle: #9fb2d4;
  --gs-color-faint: #7a8cae;
  --gs-accent: var(--gs-copper);
  --gs-accent-strong: var(--gs-copper-glow);
  --gs-accent-soft: var(--gs-copper-soft);
  --gs-accent-contrast: #031122;
  --gs-success: #22c55e;
  --gs-warning: #fbbf24;
  --gs-danger: #ef4444;
  --gs-info: #38bdf8;
  --gs-accent-blue: #5882ff;
  --gs-accent-cyan: #22d3ee;

  /* Shadows */
  --gs-shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.28);
  --gs-shadow-hard: 0 0 0 1px rgba(255, 255, 255, 0.02), 0 16px 50px rgba(5, 9, 20, 0.5);

  /* Transition */
  --gs-transition: 220ms cubic-bezier(0.22, 0.61, 0.36, 1);

  /* Effect tokens */
  --gs-effect-signal-blue-08: color-mix(in srgb, var(--gs-accent-blue) 8%, transparent);
  --gs-effect-signal-blue-12: color-mix(in srgb, var(--gs-accent-blue) 12%, transparent);
  --gs-effect-signal-blue-18: color-mix(in srgb, var(--gs-accent-blue) 18%, transparent);
  --gs-effect-signal-blue-24: color-mix(in srgb, var(--gs-accent-blue) 24%, transparent);
  --gs-effect-signal-blue-32: color-mix(in srgb, var(--gs-accent-blue) 32%, transparent);
  --gs-effect-signal-blue-45: color-mix(in srgb, var(--gs-accent-blue) 45%, transparent);
  --gs-effect-star-core: color-mix(in srgb, white 92%, var(--gs-accent-blue) 8%);
  --gs-effect-star-glow: var(--gs-effect-signal-blue-24);
  --gs-effect-sweep-core: var(--gs-effect-signal-blue-32);
  --gs-effect-sweep-edge: var(--gs-effect-signal-blue-08);

  /* Text */
  --gs-text-primary: #fff;
  --gs-text-secondary: rgba(255, 255, 255, 0.7);

  /* Header */
  --gs-header-bg-glass: rgba(5, 5, 7, 0.82);
  --gs-header-bg-scrolled: rgba(0, 0, 0, 0.95);
  --gs-header-border-subtle: rgba(255, 255, 255, 0.05);
  --gs-header-border-accent: rgba(217, 106, 50, 0.15);
  --gs-header-shadow-scrolled: 0 10px 40px -10px rgba(0, 0, 0, 0.8);

  /* Logo */
  --gs-logo-glow-soft: rgba(217, 106, 50, 0.3);
  --gs-logo-glow-strong: rgba(217, 106, 50, 0.6);

  /* Nav */
  --gs-nav-indicator-bg: var(--gs-copper);
  --gs-nav-indicator-shadow: 0 0 8px var(--gs-copper);

  /* Mobile menu */
  --gs-mobile-menu-bg: #000;
  --gs-mobile-menu-border: rgba(255, 255, 255, 0.1);

  /* Background system */
  --gs-bg-primary: #050507;
  --gs-bg-secondary: #0a0c12;
  --gs-bg-surface: #0e121a;
  --gs-bg: #050507;
  --gs-surface: rgba(14, 16, 20, 0.84);
  --gs-surface-strong: rgba(20, 23, 29, 0.94);

  /* Accent palette */
  --gs-accent-gold: #eab308;

  /* Text system */
  --gs-text: #f1f4f8;
  --gs-text-dim: #9ca5b4;
  --gs-text-muted: #9ca5b4;

  /* Border system */
  --gs-border: rgba(255, 120, 54, 0.14);
  --gs-border-subtle: rgba(255, 255, 255, 0.06);

  /* Radius overrides */
  --gs-radius-lg: 20px;
  --gs-radius-md: 12px;

  /* Layout */
  --gs-section-spacing: 6rem;
  --gs-content-width: 1100px;
  --gs-max-width: 1200px;

  /* Copper palette */
  --gs-copper: #d96a32;
  --gs-copper-soft: rgba(217, 106, 50, 0.14);
  --gs-copper-glow: rgba(217, 106, 50, 0.28);
  --gs-copper-strong: rgba(217, 106, 50, 0.42);

  /* Blue signal palette */
  --gs-blue: #59a8ff;
  --gs-blue-soft: rgba(89, 168, 255, 0.12);
  --gs-blue-glow: rgba(89, 168, 255, 0.24);

  /* Semantic */
  --gs-success: #5ddb9a;
  --gs-warning: #f0b35b;
  --gs-danger: #f56b6b;

  /* Primary alias (copper) */
  --gs-primary: var(--gs-copper);
  --gs-primary-soft: var(--gs-copper-soft);
  --gs-primary-glow: var(--gs-copper-glow);

  /* Compatibility aliases */
  --gs-color-bg: var(--gs-bg-primary);
  --gs-color-surface: var(--gs-bg-secondary);
  --gs-color-muted-surface: var(--gs-bg-surface);
  --gs-color-text: var(--gs-text-primary);
  --gs-color-subtle: var(--gs-text-muted);
  --gs-color-border: var(--gs-border);
  --gs-accent: var(--gs-primary);
  --gs-accent-strong: var(--gs-accent-gold);

  /* Hero and marketing effect tokens */
  --gs-hero-text-primary: #e5eefc;
  --gs-hero-text-secondary: #bfccdf;
  --gs-hero-mark: #f6cf7a;
  --gs-hero-vignette-core: rgba(140, 176, 255, 0.16);
  --gs-hero-vignette-fade-start: rgba(2, 6, 23, 0.18);
  --gs-hero-vignette-fade-end: rgba(2, 6, 23, 0.78);
  --gs-hero-depth-glow: rgba(90, 140, 255, 0.12);
  --gs-divider-signal: rgba(90, 140, 255, 0.3);
  --gs-divider-sweep: rgba(255, 107, 0, 0.15);
  --gs-panel-border-subtle: rgba(255, 255, 255, 0.05);
}
:root {
  /* Typography */
  --gs-font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --gs-font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --gs-font-heading: var(--gs-font-display);
  --gs-line-height: 1.6;
  --gs-line-height-heading: 1.2;
  --gs-font-size-body: 1rem;
  --gs-font-size-h1: clamp(2rem, 3.6vw, 3.6rem);
  --gs-font-size-h2: clamp(1.5rem, 2.5vw, 2.25rem);
  --gs-font-size-h3: 1.5rem;
  --gs-font-size-h4: 1.25rem;
  --gs-font-size-h5: 1rem;
  --gs-font-size-h6: 0.875rem;

  /* Spacing scale */
  --gs-space-0: 0px;
  --gs-space-1: 4px;
  --gs-space-2: 8px;
  --gs-space-3: 12px;
  --gs-space-4: 16px;
  --gs-space-5: 20px;
  --gs-space-6: 24px;
  --gs-space-7: 32px;
  --gs-space-8: 40px;
  --gs-space-9: 48px;
  --gs-space-10: 64px;

  /* Border radius */
  --gs-radius-xs: 6px;
  --gs-radius-sm: 10px;
  --gs-radius-md: 14px;
  --gs-radius-lg: 18px;
  --gs-radius-pill: 999px;

  /* Color palette — copper-on-black */
  --gs-color-primary: #d96a32;
  --gs-color-text: #e4ecfa;    /* General body text (slightly off-white for readability) */
  --gs-color-bg: #050507;
  --gs-color-surface: #0c1221;
  --gs-color-surface-strong: #0f172a;
  --gs-color-muted-surface: #111a2f;
  --gs-color-border: rgba(255, 120, 54, 0.14);
  --gs-color-border-strong: #2d3c52;
  --gs-color-subtle: #9fb2d4;
  --gs-color-faint: #7a8cae;
  --gs-accent: var(--gs-copper);
  --gs-accent-strong: var(--gs-copper-glow);
  --gs-accent-soft: var(--gs-copper-soft);
  --gs-accent-contrast: #031122;
  --gs-success: #22c55e;
  --gs-warning: #fbbf24;
  --gs-danger: #ef4444;
  --gs-info: #38bdf8;
  --gs-accent-blue: #5882ff;
  --gs-accent-cyan: #22d3ee;

  /* Shadows */
  --gs-shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.28);
  --gs-shadow-hard: 0 0 0 1px rgba(255, 255, 255, 0.02), 0 16px 50px rgba(5, 9, 20, 0.5);

  /* Transition */
  --gs-transition: 220ms cubic-bezier(0.22, 0.61, 0.36, 1);

  /* Effect tokens */
  --gs-effect-signal-blue-08: color-mix(in srgb, var(--gs-accent-blue) 8%, transparent);
  --gs-effect-signal-blue-12: color-mix(in srgb, var(--gs-accent-blue) 12%, transparent);
  --gs-effect-signal-blue-18: color-mix(in srgb, var(--gs-accent-blue) 18%, transparent);
  --gs-effect-signal-blue-24: color-mix(in srgb, var(--gs-accent-blue) 24%, transparent);
  --gs-effect-signal-blue-32: color-mix(in srgb, var(--gs-accent-blue) 32%, transparent);
  --gs-effect-signal-blue-45: color-mix(in srgb, var(--gs-accent-blue) 45%, transparent);
  --gs-effect-star-core: color-mix(in srgb, white 92%, var(--gs-accent-blue) 8%);
  --gs-effect-star-glow: var(--gs-effect-signal-blue-24);
  --gs-effect-sweep-core: var(--gs-effect-signal-blue-32);
  --gs-effect-sweep-edge: var(--gs-effect-signal-blue-08);

  /* Text */
  --gs-text-primary: #fff;
  --gs-text-secondary: rgba(255, 255, 255, 0.7);

  /* Header */
  --gs-header-bg-glass: rgba(5, 5, 7, 0.82);
  --gs-header-bg-scrolled: rgba(0, 0, 0, 0.95);
  --gs-header-border-subtle: rgba(255, 255, 255, 0.05);
  --gs-header-border-accent: rgba(217, 106, 50, 0.15);
  --gs-header-shadow-scrolled: 0 10px 40px -10px rgba(0, 0, 0, 0.8);

  /* Logo */
  --gs-logo-glow-soft: rgba(217, 106, 50, 0.3);
  --gs-logo-glow-strong: rgba(217, 106, 50, 0.6);

  /* Nav */
  --gs-nav-indicator-bg: var(--gs-copper);
  --gs-nav-indicator-shadow: 0 0 8px var(--gs-copper);

  /* Mobile menu */
  --gs-mobile-menu-bg: #000;
  --gs-mobile-menu-border: rgba(255, 255, 255, 0.1);

  /* Background system */
  --gs-bg-primary: #050507;
  --gs-bg-secondary: #0a0c12;
  --gs-bg-surface: #0e121a;
  --gs-bg: #050507;
  --gs-surface: rgba(14, 16, 20, 0.84);
  --gs-surface-strong: rgba(20, 23, 29, 0.94);

  /* Accent palette */
  --gs-accent-gold: #eab308;

  /* Text system */
  --gs-text: #f1f4f8;
  --gs-text-dim: #9ca5b4;
  --gs-text-muted: #9ca5b4;

  /* Border system */
  --gs-border: rgba(255, 120, 54, 0.14);
  --gs-border-subtle: rgba(255, 255, 255, 0.06);

  /* Radius overrides */
  --gs-radius-lg: 20px;
  --gs-radius-md: 12px;

  /* Layout */
  --gs-section-spacing: 6rem;
  --gs-content-width: 1100px;
  --gs-max-width: 1200px;

  /* Copper palette */
  --gs-copper: #d96a32;
  --gs-copper-soft: rgba(217, 106, 50, 0.14);
  --gs-copper-glow: rgba(217, 106, 50, 0.28);
  --gs-copper-strong: rgba(217, 106, 50, 0.42);

  /* Blue signal palette */
  --gs-blue: #59a8ff;
  --gs-blue-soft: rgba(89, 168, 255, 0.12);
  --gs-blue-glow: rgba(89, 168, 255, 0.24);

  /* Semantic */
  --gs-success: #5ddb9a;
  --gs-warning: #f0b35b;
  --gs-danger: #f56b6b;

  /* Primary alias (copper) */
  --gs-primary: var(--gs-copper);
  --gs-primary-soft: var(--gs-copper-soft);
  --gs-primary-glow: var(--gs-copper-glow);

  /* Compatibility aliases */
  --gs-color-bg: var(--gs-bg-primary);
  --gs-color-surface: var(--gs-bg-secondary);
  --gs-color-muted-surface: var(--gs-bg-surface);
  --gs-color-text: var(--gs-text-primary);
  --gs-color-subtle: var(--gs-text-muted);
  --gs-color-border: var(--gs-border);
  --gs-accent: var(--gs-primary);
  --gs-accent-strong: var(--gs-accent-gold);

  /* Hero and marketing effect tokens */
  --gs-hero-text-primary: #e5eefc;
  --gs-hero-text-secondary: #bfccdf;
  --gs-hero-mark: #f6cf7a;
  --gs-hero-vignette-core: rgba(140, 176, 255, 0.16);
  --gs-hero-vignette-fade-start: rgba(2, 6, 23, 0.18);
  --gs-hero-vignette-fade-end: rgba(2, 6, 23, 0.78);
  --gs-hero-depth-glow: rgba(90, 140, 255, 0.12);
  --gs-divider-signal: rgba(90, 140, 255, 0.3);
  --gs-divider-sweep: rgba(255, 107, 0, 0.15);
  --gs-panel-border-subtle: rgba(255, 255, 255, 0.05);
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--gs-color-bg);
  color: var(--gs-color-text);
  font-family: var(--gs-font-body, 'Inter', system-ui, sans-serif);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  line-height: var(--gs-line-height);
  font-size: var(--gs-font-size-body);
  min-height: 100vh;
}

img { max-width: 100%; height: auto; }

a { color: var(--gs-accent); text-decoration: none; transition: color var(--gs-transition); }
a:hover { color: var(--gs-accent-strong); }

a.button-link { text-decoration: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--gs-font-display, 'Space Grotesk', 'Inter', system-ui, sans-serif);
  letter-spacing: -0.02em;
  margin: var(--gs-space-6) 0 var(--gs-space-3);
  color: var(--gs-color-text);
  line-height: var(--gs-line-height-heading);
}

h1 { font-size: var(--gs-font-size-h1); }
h2 { font-size: var(--gs-font-size-h2); }
h3 { font-size: var(--gs-font-size-h3); }
h4 { font-size: var(--gs-font-size-h4); }
h5 { font-size: var(--gs-font-size-h5); }
h6 { font-size: var(--gs-font-size-h6); }

p { color: var(--gs-color-subtle); margin: 0 0 var(--gs-space-4); }

ul, ol { color: var(--gs-color-subtle); padding-left: var(--gs-space-6); }

label { display: inline-block; color: var(--gs-color-text); font-weight: 600; margin-bottom: var(--gs-space-2); }
input, select, textarea {
  width: 100%;
  padding: var(--gs-space-3) var(--gs-space-4);
  border-radius: var(--gs-radius-sm);
  border: 1px solid var(--gs-color-border);
  background: var(--gs-color-surface);
  color: var(--gs-color-text);
  font: inherit;
  transition: border-color var(--gs-transition), box-shadow var(--gs-transition), background var(--gs-transition);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--gs-accent);
  box-shadow: 0 0 0 3px var(--gs-accent-soft);
}

::selection { background: var(--gs-accent-soft); color: var(--gs-color-text); }

.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gs-accent);
  color: var(--gs-accent-contrast);
  font-weight: 700;
  padding: var(--gs-space-3) var(--gs-space-5);
  border-radius: var(--gs-radius-md);
  z-index: 9999;
  box-shadow: var(--gs-shadow-hard);
  transition: top 0.3s cubic-bezier(.22, .61, .36, 1);
  text-decoration: none;
}
.skip-link:focus {
  top: var(--gs-space-4);
  outline: 2px solid var(--gs-color-text);
  outline-offset: 4px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: var(--gs-space-3);
  margin-bottom: var(--gs-space-3);
}
.section-title span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--gs-radius-pill);
  background: var(--gs-accent-soft);
  color: var(--gs-accent-strong);
}

/* Utilities */
.gs-row {
  display: flex;
  align-items: center;
  gap: var(--gs-space-3);
}

.gs-row.between { justify-content: space-between; }
.gs-row.tight { gap: var(--gs-space-2); }

.gs-stack {
  display: flex;
  flex-direction: column;
  gap: var(--gs-space-4);
}

.gs-no-margin { margin: 0; }
.gs-mt-3 { margin-top: var(--gs-space-3); }
.gs-mt-6 { margin-top: var(--gs-space-6); }

.gs-text-accent { color: var(--gs-accent); }
.gs-text-subtle { color: var(--gs-color-subtle); }
.gs-text-faint { color: var(--gs-color-faint); }
.gs-text-success { color: var(--gs-success); }
.gs-text-warning { color: var(--gs-warning); }
.gs-text-danger { color: var(--gs-danger); }
.gs-text-info { color: var(--gs-info); }
:root {
  /* Typography */
  --gs-font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --gs-font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --gs-font-heading: var(--gs-font-display);
  --gs-line-height: 1.6;
  --gs-line-height-heading: 1.2;
  --gs-font-size-body: 1rem;
  --gs-font-size-h1: clamp(2rem, 3.6vw, 3.6rem);
  --gs-font-size-h2: clamp(1.5rem, 2.5vw, 2.25rem);
  --gs-font-size-h3: 1.5rem;
  --gs-font-size-h4: 1.25rem;
  --gs-font-size-h5: 1rem;
  --gs-font-size-h6: 0.875rem;

  /* Spacing scale */
  --gs-space-0: 0px;
  --gs-space-1: 4px;
  --gs-space-2: 8px;
  --gs-space-3: 12px;
  --gs-space-4: 16px;
  --gs-space-5: 20px;
  --gs-space-6: 24px;
  --gs-space-7: 32px;
  --gs-space-8: 40px;
  --gs-space-9: 48px;
  --gs-space-10: 64px;

  /* Border radius */
  --gs-radius-xs: 6px;
  --gs-radius-sm: 10px;
  --gs-radius-md: 14px;
  --gs-radius-lg: 18px;
  --gs-radius-pill: 999px;

  /* Color palette — copper-on-black */
  --gs-color-primary: #d96a32;
  --gs-color-text: #e4ecfa;    /* General body text (slightly off-white for readability) */
  --gs-color-bg: #050507;
  --gs-color-surface: #0c1221;
  --gs-color-surface-strong: #0f172a;
  --gs-color-muted-surface: #111a2f;
  --gs-color-border: rgba(255, 120, 54, 0.14);
  --gs-color-border-strong: #2d3c52;
  --gs-color-subtle: #9fb2d4;
  --gs-color-faint: #7a8cae;
  --gs-accent: var(--gs-copper);
  --gs-accent-strong: var(--gs-copper-glow);
  --gs-accent-soft: var(--gs-copper-soft);
  --gs-accent-contrast: #031122;
  --gs-success: #22c55e;
  --gs-warning: #fbbf24;
  --gs-danger: #ef4444;
  --gs-info: #38bdf8;
  --gs-accent-blue: #5882ff;
  --gs-accent-cyan: #22d3ee;

  /* Shadows */
  --gs-shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.28);
  --gs-shadow-hard: 0 0 0 1px rgba(255, 255, 255, 0.02), 0 16px 50px rgba(5, 9, 20, 0.5);

  /* Transition */
  --gs-transition: 220ms cubic-bezier(0.22, 0.61, 0.36, 1);

  /* Effect tokens */
  --gs-effect-signal-blue-08: color-mix(in srgb, var(--gs-accent-blue) 8%, transparent);
  --gs-effect-signal-blue-12: color-mix(in srgb, var(--gs-accent-blue) 12%, transparent);
  --gs-effect-signal-blue-18: color-mix(in srgb, var(--gs-accent-blue) 18%, transparent);
  --gs-effect-signal-blue-24: color-mix(in srgb, var(--gs-accent-blue) 24%, transparent);
  --gs-effect-signal-blue-32: color-mix(in srgb, var(--gs-accent-blue) 32%, transparent);
  --gs-effect-signal-blue-45: color-mix(in srgb, var(--gs-accent-blue) 45%, transparent);
  --gs-effect-star-core: color-mix(in srgb, white 92%, var(--gs-accent-blue) 8%);
  --gs-effect-star-glow: var(--gs-effect-signal-blue-24);
  --gs-effect-sweep-core: var(--gs-effect-signal-blue-32);
  --gs-effect-sweep-edge: var(--gs-effect-signal-blue-08);

  /* Text */
  --gs-text-primary: #fff;
  --gs-text-secondary: rgba(255, 255, 255, 0.7);

  /* Header */
  --gs-header-bg-glass: rgba(5, 5, 7, 0.82);
  --gs-header-bg-scrolled: rgba(0, 0, 0, 0.95);
  --gs-header-border-subtle: rgba(255, 255, 255, 0.05);
  --gs-header-border-accent: rgba(217, 106, 50, 0.15);
  --gs-header-shadow-scrolled: 0 10px 40px -10px rgba(0, 0, 0, 0.8);

  /* Logo */
  --gs-logo-glow-soft: rgba(217, 106, 50, 0.3);
  --gs-logo-glow-strong: rgba(217, 106, 50, 0.6);

  /* Nav */
  --gs-nav-indicator-bg: var(--gs-copper);
  --gs-nav-indicator-shadow: 0 0 8px var(--gs-copper);

  /* Mobile menu */
  --gs-mobile-menu-bg: #000;
  --gs-mobile-menu-border: rgba(255, 255, 255, 0.1);

  /* Background system */
  --gs-bg-primary: #050507;
  --gs-bg-secondary: #0a0c12;
  --gs-bg-surface: #0e121a;
  --gs-bg: #050507;
  --gs-surface: rgba(14, 16, 20, 0.84);
  --gs-surface-strong: rgba(20, 23, 29, 0.94);

  /* Accent palette */
  --gs-accent-gold: #eab308;

  /* Text system */
  --gs-text: #f1f4f8;
  --gs-text-dim: #9ca5b4;
  --gs-text-muted: #9ca5b4;

  /* Border system */
  --gs-border: rgba(255, 120, 54, 0.14);
  --gs-border-subtle: rgba(255, 255, 255, 0.06);

  /* Radius overrides */
  --gs-radius-lg: 20px;
  --gs-radius-md: 12px;

  /* Layout */
  --gs-section-spacing: 6rem;
  --gs-content-width: 1100px;
  --gs-max-width: 1200px;

  /* Copper palette */
  --gs-copper: #d96a32;
  --gs-copper-soft: rgba(217, 106, 50, 0.14);
  --gs-copper-glow: rgba(217, 106, 50, 0.28);
  --gs-copper-strong: rgba(217, 106, 50, 0.42);

  /* Blue signal palette */
  --gs-blue: #59a8ff;
  --gs-blue-soft: rgba(89, 168, 255, 0.12);
  --gs-blue-glow: rgba(89, 168, 255, 0.24);

  /* Semantic */
  --gs-success: #5ddb9a;
  --gs-warning: #f0b35b;
  --gs-danger: #f56b6b;

  /* Primary alias (copper) */
  --gs-primary: var(--gs-copper);
  --gs-primary-soft: var(--gs-copper-soft);
  --gs-primary-glow: var(--gs-copper-glow);

  /* Compatibility aliases */
  --gs-color-bg: var(--gs-bg-primary);
  --gs-color-surface: var(--gs-bg-secondary);
  --gs-color-muted-surface: var(--gs-bg-surface);
  --gs-color-text: var(--gs-text-primary);
  --gs-color-subtle: var(--gs-text-muted);
  --gs-color-border: var(--gs-border);
  --gs-accent: var(--gs-primary);
  --gs-accent-strong: var(--gs-accent-gold);

  /* Hero and marketing effect tokens */
  --gs-hero-text-primary: #e5eefc;
  --gs-hero-text-secondary: #bfccdf;
  --gs-hero-mark: #f6cf7a;
  --gs-hero-vignette-core: rgba(140, 176, 255, 0.16);
  --gs-hero-vignette-fade-start: rgba(2, 6, 23, 0.18);
  --gs-hero-vignette-fade-end: rgba(2, 6, 23, 0.78);
  --gs-hero-depth-glow: rgba(90, 140, 255, 0.12);
  --gs-divider-signal: rgba(90, 140, 255, 0.3);
  --gs-divider-sweep: rgba(255, 107, 0, 0.15);
  --gs-panel-border-subtle: rgba(255, 255, 255, 0.05);
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--gs-color-bg);
  color: var(--gs-color-text);
  font-family: var(--gs-font-body, 'Inter', system-ui, sans-serif);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  line-height: var(--gs-line-height);
  font-size: var(--gs-font-size-body);
  min-height: 100vh;
}

img { max-width: 100%; height: auto; }

a { color: var(--gs-accent); text-decoration: none; transition: color var(--gs-transition); }
a:hover { color: var(--gs-accent-strong); }

a.button-link { text-decoration: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--gs-font-display, 'Space Grotesk', 'Inter', system-ui, sans-serif);
  letter-spacing: -0.02em;
  margin: var(--gs-space-6) 0 var(--gs-space-3);
  color: var(--gs-color-text);
  line-height: var(--gs-line-height-heading);
}

h1 { font-size: var(--gs-font-size-h1); }
h2 { font-size: var(--gs-font-size-h2); }
h3 { font-size: var(--gs-font-size-h3); }
h4 { font-size: var(--gs-font-size-h4); }
h5 { font-size: var(--gs-font-size-h5); }
h6 { font-size: var(--gs-font-size-h6); }

p { color: var(--gs-color-subtle); margin: 0 0 var(--gs-space-4); }

ul, ol { color: var(--gs-color-subtle); padding-left: var(--gs-space-6); }

label { display: inline-block; color: var(--gs-color-text); font-weight: 600; margin-bottom: var(--gs-space-2); }
input, select, textarea {
  width: 100%;
  padding: var(--gs-space-3) var(--gs-space-4);
  border-radius: var(--gs-radius-sm);
  border: 1px solid var(--gs-color-border);
  background: var(--gs-color-surface);
  color: var(--gs-color-text);
  font: inherit;
  transition: border-color var(--gs-transition), box-shadow var(--gs-transition), background var(--gs-transition);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--gs-accent);
  box-shadow: 0 0 0 3px var(--gs-accent-soft);
}

::selection { background: var(--gs-accent-soft); color: var(--gs-color-text); }

.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gs-accent);
  color: var(--gs-accent-contrast);
  font-weight: 700;
  padding: var(--gs-space-3) var(--gs-space-5);
  border-radius: var(--gs-radius-md);
  z-index: 9999;
  box-shadow: var(--gs-shadow-hard);
  transition: top 0.3s cubic-bezier(.22, .61, .36, 1);
  text-decoration: none;
}
.skip-link:focus {
  top: var(--gs-space-4);
  outline: 2px solid var(--gs-color-text);
  outline-offset: 4px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: var(--gs-space-3);
  margin-bottom: var(--gs-space-3);
}
.section-title span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--gs-radius-pill);
  background: var(--gs-accent-soft);
  color: var(--gs-accent-strong);
}

/* Utilities */
.gs-row {
  display: flex;
  align-items: center;
  gap: var(--gs-space-3);
}

.gs-row.between { justify-content: space-between; }
.gs-row.tight { gap: var(--gs-space-2); }

.gs-stack {
  display: flex;
  flex-direction: column;
  gap: var(--gs-space-4);
}

.gs-no-margin { margin: 0; }
.gs-mt-3 { margin-top: var(--gs-space-3); }
.gs-mt-6 { margin-top: var(--gs-space-6); }

.gs-text-accent { color: var(--gs-accent); }
.gs-text-subtle { color: var(--gs-color-subtle); }
.gs-text-faint { color: var(--gs-color-faint); }
.gs-text-success { color: var(--gs-success); }
.gs-text-warning { color: var(--gs-warning); }
.gs-text-danger { color: var(--gs-danger); }
.gs-text-info { color: var(--gs-info); }
.aria-icon {
  display: inline-flex;
  width: 1em;
  height: 1em;
  background: currentColor;
  -webkit-mask: var(--aria-icon) no-repeat center / contain;
  mask: var(--aria-icon) no-repeat center / contain;
}

.aria-icon-orbit {
  --aria-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><circle cx='12' cy='12' r='3' fill='black'/><path d='M3 12a9 9 0 1 0 18 0a9 9 0 1 0 -18 0' fill='none' stroke='black' stroke-width='2'/></svg>");
}

.aria-icon-signal {
  --aria-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><rect x='3' y='13' width='4' height='8' fill='black'/><rect x='10' y='9' width='4' height='12' fill='black'/><rect x='17' y='5' width='4' height='16' fill='black'/></svg>");
}

.gs-shell {
  display: flex;
  min-height: 100vh;
  background: linear-gradient(140deg, rgba(7, 11, 25, 0.9), rgba(7, 12, 30, 0.95));
}

.gs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--gs-space-3) var(--gs-space-6);
  --gs-header-opacity: 0;
  background: rgba(2, 4, 8, var(--gs-header-opacity));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  position: sticky;
  top: 0;
  z-index: 20;
  isolation: isolate;
  transition: background 220ms ease, box-shadow 220ms ease;
}
.gs-header::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 18px;
  background: linear-gradient(180deg, rgba(12, 18, 32, calc(var(--gs-header-opacity) * 0.7)) 0%, rgba(12, 18, 32, 0) 100%);
  pointer-events: none;
  z-index: -1;
}
.gs-header.is-scrolled {
  box-shadow: 0 12px 30px rgba(5, 12, 28, 0.35);
}

.gs-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--gs-space-3);
  color: var(--gs-color-text);
  font-weight: 700;
  letter-spacing: var(--gs-letter-wide);
  text-transform: uppercase;
}

.gs-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--gs-radius-sm);
  border: 1px solid var(--gs-color-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--gs-color-text);
  cursor: pointer;
  transition: background var(--gs-transition), border-color var(--gs-transition);
}
.gs-nav-toggle:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--gs-accent); }

.gs-nav {
  display: flex;
  align-items: center;
  gap: var(--gs-space-6);
}

.gs-nav a { color: var(--gs-color-subtle); font-weight: 500; font-size: 0.95rem; }
.gs-nav a[aria-current='page'], .gs-nav a:hover { color: var(--gs-color-text); }
.gs-nav .material-symbols-rounded { font-size: 1.1rem; }

.gs-button--with-icon {
  gap: var(--gs-space-2);
}

.gs-footer {
  border-top: 1px solid var(--gs-color-border);
  padding: var(--gs-space-6) var(--gs-space-4);
  margin-top: var(--gs-space-10);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
}
.gs-footer .gs-nav a { font-weight: 500; }
.gs-footer .gs-nav a[aria-current='page'] { font-weight: 700; color: var(--gs-color-text); }
.gs-footer strong { display: inline-flex; align-items: center; gap: var(--gs-space-2); }

.gs-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--gs-space-2);
  padding: var(--gs-space-3) var(--gs-space-5);
  border-radius: var(--gs-radius-sm);
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: var(--gs-accent);
  color: var(--gs-accent-contrast);
  cursor: pointer;
  transition: transform var(--gs-transition), box-shadow var(--gs-transition), background var(--gs-transition), color var(--gs-transition);
}

.gs-button--small { padding: var(--gs-space-2) var(--gs-space-4); font-size: 0.9rem; }
.gs-button--large { padding: var(--gs-space-4) var(--gs-space-6); font-size: 1rem; }

.gs-button:hover { transform: translateY(-2px); box-shadow: 0 10px 30px var(--gs-accent-soft); }
.gs-button:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--gs-accent-soft); }

.gs-button--secondary {
  background: transparent;
  color: var(--gs-color-text);
  border-color: var(--gs-color-border);
}
.gs-button--secondary:hover { border-color: var(--gs-accent); color: var(--gs-accent); }

.gs-button--destructive { background: var(--gs-danger); color: #fff; }
.gs-button--ghost {
  background: transparent;
  color: var(--gs-color-subtle);
  border-color: transparent;
  font-weight: 500;
}
.gs-button--ghost:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--gs-color-text);
  transform: none;
  box-shadow: none;
}

.gs-card, .gs-panel {
  background: var(--gs-color-surface);
  border: 1px solid var(--gs-color-border);
  border-radius: var(--gs-radius-md);
  padding: var(--gs-space-6);
  box-shadow: var(--gs-shadow-soft);
}

.gs-card { background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent), var(--gs-color-surface); }
.gs-panel { background: var(--gs-color-muted-surface); }

.gs-grid {
  display: grid;
  gap: var(--gs-space-5);
}

.gs-grid.columns-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--gs-grid-min-3)), 1fr)); }
.gs-grid.columns-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--gs-grid-min-2)), 1fr)); }
.gs-grid.columns-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.gs-grid.columns-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.gs-kpi { display: flex; flex-direction: column; gap: var(--gs-space-2); }
.gs-kpi span { color: var(--gs-color-subtle); font-size: 0.9rem; }
.gs-kpi strong { font-size: 1.8rem; }

.gs-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.gs-table th, .gs-table td { padding: var(--gs-space-3) var(--gs-space-4); border-bottom: 1px solid var(--gs-color-border); }
.gs-table th { text-align: left; color: var(--gs-color-subtle); font-weight: 600; }
.gs-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.gs-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--gs-space-2);
  padding: var(--gs-space-1) var(--gs-space-3);
  border-radius: var(--gs-radius-pill);
  font-size: 0.85rem;
  background: var(--gs-color-muted-surface);
  border: 1px solid var(--gs-color-border);
  color: var(--gs-color-text);
}

.gs-badge.success { background: rgba(34,197,94,0.12); border-color: rgba(34,197,94,0.4); color: #bbf7d0; }
.gs-badge.warning { background: rgba(251,191,36,0.14); border-color: rgba(251,191,36,0.5); color: #fde68a; }
.gs-badge.danger { background: rgba(239,68,68,0.15); border-color: rgba(239,68,68,0.6); color: #fecdd3; }
.gs-badge.info { background: rgba(56,189,248,0.14); border-color: rgba(56,189,248,0.5); color: #bae6fd; }

.gs-form-row { display: grid; gap: var(--gs-space-4); grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.gs-helper { color: var(--gs-color-faint); font-size: 0.9rem; margin-top: var(--gs-space-2); }

.gs-nav-block { display: flex; align-items: center; gap: var(--gs-space-3); padding: var(--gs-space-3) var(--gs-space-4); border-radius: var(--gs-radius-sm); color: var(--gs-color-subtle); }
.gs-nav-block[aria-current='page'] { background: var(--gs-accent-soft); color: var(--gs-accent-strong); }
.gs-nav-block:hover { color: var(--gs-color-text); background: rgba(255,255,255,0.03); }

.gs-tabs { display: flex; flex-direction: column; gap: var(--gs-space-3); }
.gs-tabs-header { display: flex; gap: var(--gs-space-2); }
.gs-tabs-header button { background: var(--gs-color-muted-surface); color: var(--gs-color-subtle); border: 1px solid var(--gs-color-border); padding: var(--gs-space-2) var(--gs-space-4); border-radius: var(--gs-radius-pill); cursor: pointer; }
.gs-tabs-header button.active { background: var(--gs-accent-soft); color: var(--gs-accent-strong); border-color: var(--gs-accent); }

.gs-hero {
  padding: calc(var(--gs-section-padding-block) + var(--gs-space-2)) var(--gs-section-padding-inline) var(--gs-section-padding-block);
  display: grid;
  gap: var(--gs-section-gap);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  align-items: center;
}
.gs-hero h1 { margin: 0 0 var(--gs-space-3); font-size: clamp(2.4rem, 3vw, 3.6rem); }
.gs-hero p { max-width: 640px; font-size: clamp(1.02rem, 0.95rem + 0.4vw, 1.2rem); }

.gs-section {
  padding: var(--gs-section-padding-block) var(--gs-section-padding-inline);
  max-width: var(--gs-section-max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--gs-section-gap);
}
.gs-hero { padding: var(--gs-space-10) var(--gs-space-4) var(--gs-space-8); display: grid; gap: var(--gs-space-6); grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); align-items: center; }
.gs-hero h1 { margin: 0 0 var(--gs-space-3); font-size: clamp(2.4rem, 3vw, 3.6rem); }
.gs-hero p { max-width: 640px; font-size: 1.05rem; }

.gs-section { padding: var(--gs-space-8) var(--gs-space-4); max-width: 1200px; margin: 0 auto; }
.gs-list-grid { display: grid; gap: var(--gs-space-4); grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

@media (max-width: 900px) {
  .gs-hero { grid-template-columns: 1fr; }
}

.gs-table-card { overflow: hidden; }
.gs-table-card table { margin: 0; }

.gs-pill-list { display: flex; gap: var(--gs-space-2); flex-wrap: wrap; }

.gs-banner { padding: var(--gs-space-3) var(--gs-space-4); border-radius: var(--gs-radius-sm); border: 1px solid var(--gs-color-border); background: var(--gs-color-muted-surface); color: var(--gs-color-text); }

.gs-input-group { display: flex; flex-direction: column; gap: var(--gs-space-2); }

.gs-form-actions { display: flex; gap: var(--gs-space-3); justify-content: flex-end; margin-top: var(--gs-space-4); }

.gs-modal-panel {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid rgba(159, 220, 255, 0.18);
  background:
    radial-gradient(circle at top left, rgba(39, 125, 201, 0.22), transparent 34%),
    radial-gradient(circle at 86% 4%, rgba(255, 255, 255, 0.12), transparent 26%),
    linear-gradient(180deg, rgba(8, 14, 27, 0.98), rgba(5, 10, 18, 0.96));
  box-shadow: 0 24px 70px rgba(2, 8, 18, 0.55);
}

.gs-modal-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(159, 220, 255, 0.08), transparent 40%);
}

.gs-access-brand {
  display: flex;
  align-items: center;
  gap: var(--gs-space-4);
  margin-bottom: var(--gs-space-4);
}

.gs-access-mark {
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1.1rem;
  color: #d8f2ff;
  background: linear-gradient(180deg, rgba(17, 74, 128, 0.88), rgba(7, 22, 40, 0.94));
  border: 1px solid rgba(159, 220, 255, 0.25);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.02), 0 14px 34px rgba(4, 12, 24, 0.45);
}

.gs-access-mark svg {
  width: 1.9rem;
  height: 1.9rem;
}

.gs-modal-title {
  margin: 0;
}

.gs-access-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gs-space-2);
  margin-bottom: var(--gs-space-4);
}

.gs-access-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--gs-space-2);
  padding: var(--gs-space-1) var(--gs-space-3);
  border-radius: var(--gs-radius-pill);
  border: 1px solid rgba(159, 220, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
  color: var(--gs-color-subtle);
  font-size: 0.82rem;
}

.gs-access-body {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(290px, 0.95fr);
  gap: var(--gs-space-4);
  align-items: start;
}

.gs-access-copy,
.gs-access-form {
  position: relative;
  border-radius: 22px;
  border: 1px solid rgba(159, 220, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.gs-access-copy {
  padding: var(--gs-space-4);
}

.gs-access-copy h3 {
  margin-top: 0;
  margin-bottom: var(--gs-space-2);
}

.gs-access-copy p {
  margin-bottom: var(--gs-space-3);
}

.gs-access-copy ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--gs-color-subtle);
}

.gs-access-copy li + li {
  margin-top: var(--gs-space-2);
}

.gs-access-form {
  display: flex;
  flex-direction: column;
  gap: var(--gs-space-2);
  padding: var(--gs-space-4);
}

.gs-access-form .gs-button {
  margin-top: var(--gs-space-2);
  width: 100%;
}

.gs-micro {
  margin-top: var(--gs-space-4);
}

@media (max-width: 720px) {
  .gs-access-brand {
    align-items: flex-start;
  }

  .gs-access-body {
    grid-template-columns: 1fr;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.gs-pulse-frame {
  position: relative;
}
.gs-pulse-frame::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: inherit;
  border: 1px solid rgba(120, 190, 255, 0.35);
  box-shadow: 0 0 10px rgba(120, 190, 255, 0.25);
  opacity: 0.45;
  animation: gs-border-pulse 7s ease-in-out infinite;
  pointer-events: none;
}
@keyframes gs-border-pulse {
  0%, 100% {
    border-width: 1px;
    opacity: 0.35;
    box-shadow: 0 0 10px rgba(120, 190, 255, 0.25);
  }
  50% {
    border-width: 6px;
    opacity: 0.85;
    box-shadow: 0 0 28px rgba(120, 190, 255, 0.55);
  }
}

@media (max-width: 900px) {
  .gs-header { flex-direction: row; gap: var(--gs-space-3); align-items: center; }
  .gs-nav-toggle { display: inline-flex; margin-left: auto; }
  .gs-nav {
    position: absolute;
    top: calc(100% + var(--gs-space-2));
    left: var(--gs-space-4);
    right: var(--gs-space-4);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--gs-space-3);
    padding: var(--gs-space-4);
    background: rgba(10, 16, 32, 0.92);
    border: 1px solid var(--gs-color-border);
    border-radius: var(--gs-radius-md);
    box-shadow: 0 20px 40px rgba(4, 10, 26, 0.4);
    opacity: 0;
    transform: translateY(-6px);
    pointer-events: none;
    transition: opacity 200ms ease, transform 200ms ease;
  }
  .gs-header[data-menu-open='true'] .gs-nav {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .gs-shell { flex-direction: column; }
}


/* Consistent vertical rhythm */
.gs-section .gs-card + .gs-card {
  margin-top: 2rem;
}

/* Improve card spacing on mobile */
@media (max-width: 768px) {
  .gs-card {
    padding: 1.5rem;
  }
}
html,
body {
  margin: 0;
  padding: 0;
  background: var(--gs-bg-primary);
  color: var(--gs-text-primary);
  font-family: Inter, system-ui, -apple-system, sans-serif;
}

body {
  padding-top: 80px;
}

@media (max-width: 768px) {
  body {
    padding-top: 72px;
  }
}

.gs-container {
  max-width: var(--gs-content-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.gs-header {
  position: fixed;
  top: 0;
  width: 100%;
  height: 80px;
  background: rgba(5, 6, 10, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gs-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 1000;
}

.gs-logo img {
  height: 32px;
}

.gs-nav a {
  margin-left: 2rem;
  text-decoration: none;
  color: var(--gs-text-muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

.gs-nav a:hover {
  color: var(--gs-text-primary);
}

.gs-section {
  padding: var(--gs-section-spacing) 0;
  position: relative;
}

.gs-section + .gs-section {
  border-top: 1px solid var(--gs-border-subtle);
}

.gs-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  width: 80%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gs-accent-blue), var(--gs-accent-gold), transparent);
  opacity: 0.25;
}

.gs-card {
  background: var(--gs-bg-secondary);
  border-radius: var(--gs-radius-lg);
  padding: 2rem;
  border: 1px solid var(--gs-border-subtle);
}

.gs-footer {
  padding: 4rem 2rem;
  text-align: center;
  background: #050507;
  border-top: 1px solid var(--gs-border-subtle);
  color: var(--gs-text-muted);
}

h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

h2 {
  margin-bottom: 1rem;
}

p {
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.blueprint-bg {
  background: radial-gradient(circle at 50% 40%, #0f172a 0%, #05060a 70%), url('/assets/blueprint-grid.svg');
}

@media (max-width: 768px) {
  .blueprint-grid {
    opacity: 0.15;
  }
}

/* Admin layout utilities */
.gs-admin-grid {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.gs-admin-sidebar {
  border-right: 1px solid var(--gs-border-subtle);
  padding: 1.5rem;
}

.gs-admin-main {
  display: flex;
  flex-direction: column;
}

.gs-admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--gs-border-subtle);
  position: sticky;
  top: 0;
  background: rgba(5, 6, 10, 0.9);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.gs-admin-content {
  padding: 1.5rem;
  flex: 1 1 auto;
}


/* Responsive Typography */
h1 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

/* Responsive Containers */
@media (max-width: 1024px) {
  .gs-container {
    padding: 0 1.5rem;
  }
}

@media (max-width: 768px) {
  .gs-container {
    padding: 0 1.25rem;
  }
}

/* Responsive Grid Utility */
.gs-grid {
  display: grid;
  gap: 2rem;
}

.gs-grid.columns-2 {
  grid-template-columns: repeat(2, 1fr);
}

.gs-grid.columns-3 {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
  .gs-grid.columns-2,
  .gs-grid.columns-3 {
    grid-template-columns: 1fr;
  }
}


/* Flex */
.gs-flex {
  display: flex;
}

.gs-flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.gs-flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gs-flex-column {
  display: flex;
  flex-direction: column;
}

/* Stack Utility (Vertical Rhythm Control) */
.gs-stack > * + * {
  margin-top: 1.5rem;
}

.gs-stack-lg > * + * {
  margin-top: 2.5rem;
}

.gs-stack-sm > * + * {
  margin-top: 1rem;
}

/* Cluster (Button / Nav Alignment) */
.gs-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

/* Split Layout (Responsive Two-Column) */
.gs-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 900px) {
  .gs-split {
    grid-template-columns: 1fr;
  }
}

/* Centered Section Utility */
.gs-center {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* Responsive Visibility Utilities */
.gs-hide-mobile {
  display: block;
}

.gs-show-mobile {
  display: none;
}

@media (max-width: 768px) {
  .gs-hide-mobile {
    display: none;
  }

  .gs-show-mobile {
    display: block;
  }
}

/* Spacing Utilities */
.gs-mt-2 { margin-top: 2rem; }
.gs-mt-4 { margin-top: 4rem; }
.gs-mb-2 { margin-bottom: 2rem; }
.gs-mb-4 { margin-bottom: 4rem; }

.gs-pt-4 { padding-top: 4rem; }
.gs-pb-4 { padding-bottom: 4rem; }
.skip-link {
        position: absolute;
        left: 1rem;
        top: -3rem;
        z-index: 1200;
        padding: 0.75rem 1rem;
        background: var(--gs-surface-strong);
        color: var(--gs-text);
        border-radius: 999px;
        border: 1px solid var(--gs-border);
        text-decoration: none;
      }

      .skip-link:focus {
        top: 1rem;
      }

      .gs-page-shell {
        min-height: 100vh;
        --gs-site-width: 1440px;
        --gs-site-gutter: clamp(1rem, 4vw, 4rem);
        --gs-site-columns: repeat(12, minmax(0, 1fr));
      }

      .gs-page-content {
        min-height: calc(100vh - 220px);
      }

      .header {
        position: sticky;
        top: 0;
        z-index: 1100;
        padding: 1rem clamp(1rem, 3vw, 3rem);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        background: rgba(6, 6, 10, 0.88);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        transition:
          padding 220ms ease,
          background 220ms ease,
          border-color 220ms ease;
      }

      .header.is-scrolled {
        padding-block: 0.68rem;
        background: rgba(6, 6, 10, 0.96);
        border-bottom-color: rgba(217, 106, 50, 0.34);
      }

      .header__inner {
        width: min(100%, var(--gs-site-width));
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 2rem;
      }

      .header-brand {
        display: flex;
        align-items: center;
        gap: 1rem;
        color: var(--gs-text);
        text-decoration: none;
        min-width: 0;
      }

      .header-brand__logo {
        display: none;
        width: 50px;
        height: 50px;
        object-fit: contain;
        flex-shrink: 0;
      }

      @media (min-width: 961px) {
        .header-brand__logo {
          display: block;
        }
      }

      .header-brand__coords {
        color: var(--gs-text-dim);
        font-family: 'DM Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
        font-size: 0.52rem;
        letter-spacing: 0.09em;
        line-height: 1.35;
        text-transform: uppercase;
      }

      .header-brand__mark {
        flex-shrink: 0;
        padding: 0.48rem 0.64rem;
        border: 1px solid rgba(217, 106, 50, 0.28);
        color: var(--gs-primary);
        font-family: 'DM Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
        font-size: 0.62rem;
        letter-spacing: 0.09em;
        text-transform: uppercase;
      }

      .header-brand__lockup {
        display: block;
        min-width: 0;
      }

      .header-brand__lockup strong {
        display: block;
        color: var(--gs-text);
        font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
        font-size: 0.9rem;
        font-weight: 700;
        letter-spacing: 0.12em;
        line-height: 1.2;
        text-transform: uppercase;
        white-space: nowrap;
      }

      .header-brand__shore {
        color: transparent;
        -webkit-text-stroke: 1px var(--gs-text);
        transition:
          color 220ms ease,
          -webkit-text-stroke-color 220ms ease;
      }

      .header.is-scrolled .header-brand__shore {
        color: var(--gs-text);
        -webkit-text-stroke-color: transparent;
      }

      .header-brand__lockup em {
        display: block;
        color: var(--gs-text-dim);
        font-family: 'DM Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
        font-size: 0.65rem;
        font-style: normal;
        letter-spacing: 0.09em;
        line-height: 1.35;
        text-transform: uppercase;
      }

      .header-brand--mobile {
        flex: 1;
      }

      .header-brand__mobile-container {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
      }

      .header-brand__logo--mobile {
        display: block;
        width: 45px;
        height: 45px;
        object-fit: contain;
      }

      .desktop-nav {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 1rem;
        flex: 1;
      }

      .desktop-nav__links {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        gap: 0.25rem;
        flex-wrap: wrap;
      }

      .desktop-nav__links a,
      .menu-panel__links a {
        text-decoration: none;
        transition:
          color 160ms ease,
          border-color 160ms ease,
          background 160ms ease,
          transform 160ms ease;
      }

      .desktop-nav__links a {
        padding: 0.6rem 0.85rem;
        border-radius: 6px;
        color: var(--gs-text);
        transition: all 160ms ease;
      }

      .desktop-nav__links a:hover,
      .desktop-nav__links a[aria-current='page'] {
        color: var(--gs-text);
        background: rgba(220, 120, 60, 0.12);
      }

      .header-login {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.72rem 1rem;
        border-radius: 6px;
        text-decoration: none;
        border: 1px solid rgba(255, 255, 255, 0.18);
        color: var(--gs-text);
        font-weight: 500;
        white-space: nowrap;
        transition: all 160ms ease;
      }

      .header-login:hover,
      .header-login:focus-visible {
        color: var(--gs-text);
        border-color: rgba(220, 120, 60, 0.6);
        background: rgba(220, 120, 60, 0.08);
      }

      .header-cta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.82rem 1.2rem;
        border-radius: 6px;
        text-decoration: none;
        background: linear-gradient(135deg, rgba(220, 120, 60, 0.8), rgba(200, 100, 50, 0.8));
        border: 1px solid rgba(220, 120, 60, 0.9);
        color: #fff;
        font-weight: 700;
        white-space: nowrap;
        box-shadow: 0 10px 28px rgba(220, 120, 60, 0.25);
        transition: all 160ms ease;
      }

      .header-cta:hover,
      .header-cta:focus-visible {
        transform: translateY(-2px);
        background: linear-gradient(135deg, rgba(230, 130, 70, 0.9), rgba(210, 110, 60, 0.9));
        box-shadow: 0 14px 36px rgba(220, 120, 60, 0.35);
      }

      .menu-button,
      .menu-panel {
        display: none;
      }

      .menu-button {
        position: relative;
        z-index: 1102;
        width: 46px;
        height: 46px;
        place-items: center;
        gap: 4px;
        border-radius: 6px;
        border: 1px solid var(--gs-border);
        background: rgba(220, 120, 60, 0.08);
        cursor: pointer;
        transition: all 160ms ease;
      }

      .menu-button:hover {
        background: rgba(220, 120, 60, 0.14);
        border-color: rgba(220, 120, 60, 0.4);
      }

      .menu-button span {
        display: block;
        width: 18px;
        height: 1.5px;
        border-radius: 999px;
        background: var(--gs-text);
        transition: transform 160ms ease, opacity 160ms ease;
      }

      .header[data-menu-open='true'] .menu-button span:nth-child(1) {
        transform: translateY(5.5px) rotate(45deg);
      }

      .header[data-menu-open='true'] .menu-button span:nth-child(2) {
        opacity: 0;
      }

      .header[data-menu-open='true'] .menu-button span:nth-child(3) {
        transform: translateY(-5.5px) rotate(-45deg);
      }

      .menu-panel {
        position: fixed;
        inset: 0;
        padding: max(0.8rem, env(safe-area-inset-top)) 0.8rem 0.8rem;
        justify-items: end;
        background: rgba(5, 8, 14, 0);
        pointer-events: none;
        transition: background 180ms ease;
      }

      .menu-panel__inner {
        width: min(360px, 100%);
        min-height: calc(100vh - 1.6rem);
        padding: 0.95rem;
        display: grid;
        align-content: start;
        gap: 1rem;
        transform: translateX(100%);
        transition: transform 180ms ease;
        background: rgba(7, 14, 28, 0.97);
        border: 1px solid var(--gs-border);
        border-radius: 24px;
        box-shadow: -24px 0 80px rgba(0, 0, 0, 0.38);
      }

      .menu-panel__header {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 0.75rem;
      }

      .gs-logo-link--mobile {
        flex: 1;
      }

      .menu-close {
        width: 2.5rem;
        height: 2.5rem;
        border: 1px solid var(--gs-border);
        border-radius: 6px;
        background: rgba(255, 255, 255, 0.07);
        color: var(--gs-text);
        font-size: 1.6rem;
        line-height: 1;
        cursor: pointer;
        flex-shrink: 0;
        transition: all 160ms ease;
      }

      .menu-close:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: rgba(220, 120, 60, 0.5);
      }

      .menu-panel__links {
        display: grid;
        gap: 0.45rem;
      }

      .menu-panel__links a {
        padding: 0.95rem 1rem;
        border-radius: 6px;
        color: var(--gs-text-dim);
        border: 1px solid transparent;
        background: rgba(255, 255, 255, 0.03);
        transition: all 160ms ease;
      }

      .menu-panel__links a:hover,
      .menu-panel__links a[aria-current='page'] {
        color: var(--gs-text);
        border-color: rgba(220, 120, 60, 0.5);
        background: rgba(220, 120, 60, 0.10);
      }

      .menu-panel__actions {
        display: grid;
        gap: 0.75rem;
      }

      .header-cta--mobile,
      .menu-secondary-link {
        width: 100%;
      }

      .menu-secondary-link {
        display: inline-flex;
        justify-content: center;
        align-items: center;
        padding: 0.82rem 1.2rem;
        border-radius: 6px;
        text-decoration: none;
        border: 1px solid rgba(255, 255, 255, 0.15);
        color: var(--gs-text);
        transition: all 160ms ease;
      }

      .menu-secondary-link:hover {
        border-color: rgba(220, 120, 60, 0.6);
        background: rgba(220, 120, 60, 0.08);
      }

      .header[data-menu-open='true'] .menu-panel {
        pointer-events: auto;
        display: grid;
        background: rgba(5, 8, 14, 0.5);
      }

      .header[data-menu-open='true'] .menu-panel__inner {
        transform: translateX(0);
      }

      .gs-footer {
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding: 2rem clamp(1rem, 3vw, 2rem) 3rem;
      }

      .gs-footer__inner {
        width: min(100%, var(--gs-max-width));
        margin: 0 auto;
        display: flex;
        justify-content: space-between;
        gap: 2rem;
        align-items: flex-start;
      }

      .footer-brand-copy {
        display: grid;
        gap: 1rem;
      }

      .footer-brand__logo {
        width: 55px;
        height: 55px;
        object-fit: contain;
      }

      .footer-brand {
        display: inline-flex;
        align-items: center;
        gap: 0.8rem;
      }

      .footer-coords {
        display: flex;
        flex-direction: column;
        gap: 0.35rem;
        text-align: right;
        font-family: 'DM Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
        font-size: 0.65rem;
        color: var(--gs-text-dim);
        letter-spacing: 0.09em;
      }

      .footer-coords__item {
        line-height: 1.2;
      }

      .gs-footer p {
        max-width: 42ch;
        color: var(--gs-text-dim);
        line-height: 1.7;
        margin: 0;
      }

      .gs-footer__links {
        display: grid;
        gap: 0.65rem;
      }

      .gs-footer__links a {
        color: var(--gs-text-dim);
        text-decoration: none;
      }

      .gs-footer__links a:hover {
        color: var(--gs-text);
      }

      .gs-shell-section {
        width: min(calc(100% - (2 * var(--gs-site-gutter))), var(--gs-site-width));
        margin: 0 auto;
      }

      .gs-column-grid {
        display: grid;
        grid-template-columns: var(--gs-site-columns);
        column-gap: clamp(0.75rem, 1.5vw, 1.5rem);
      }

      .gs-column-grid > * {
        grid-column: 1 / -1;
        min-width: 0;
      }

      .gs-eyebrow {
        margin: 0;
        color: var(--gs-primary);
        letter-spacing: 0.16em;
        text-transform: uppercase;
        font-size: 0.78rem;
      }

      @media (max-width: 960px) {
        .desktop-nav {
          display: none;
        }

        .menu-button {
          display: inline-grid;
        }
      }

      @media (max-width: 720px) {
        .header {
          padding-inline: 0.8rem;
        }

        .header-brand__coords {
          display: none;
        }

        .header-brand__lockup strong {
          font-size: 0.78rem;
        }

        .header-brand__lockup em {
          font-size: 0.58rem;
        }

        .menu-panel__header {
          align-items: center;
        }

        .gs-footer__inner {
          flex-direction: column;
        }
      }