:root {
  /* Default: Premium Dark theme */
  color-scheme: dark;

  --color-paper: oklch(14% 0.015 240);
  --color-paper-2: oklch(11% 0.015 240);
  --color-paper-3: oklch(18% 0.018 240);
  --color-ink: oklch(96% 0.01 240);
  --color-ink-2: oklch(82% 0.015 240);
  --color-muted: oklch(62% 0.015 240);
  --color-rule: oklch(22% 0.02 240);
  --color-rule-strong: oklch(32% 0.025 240);
  --color-panel: oklch(17% 0.018 240);
  --color-panel-2: oklch(20% 0.02 240);
  --color-panel-3: oklch(26% 0.02 240);
  
  --color-accent: oklch(70% 0.16 210);
  --color-accent-ink: oklch(10% 0.02 210);
  --color-accent-warm: oklch(72% 0.16 40);
  --color-accent-sage: oklch(75% 0.12 150);
  --color-accent-gold: oklch(80% 0.13 85);
  
  --color-accent-soft: oklch(70% 0.16 210 / 0.15);
  --color-accent-warm-soft: oklch(72% 0.16 40 / 0.15);
  --color-accent-sage-soft: oklch(75% 0.12 150 / 0.15);
  --color-accent-gold-soft: oklch(80% 0.13 85 / 0.15);
  
  --color-focus: oklch(70% 0.16 210);
  --color-shadow: oklch(5% 0.01 240 / 0.5);
  --color-scrim: oklch(14% 0.015 240 / 0.8);
  --color-map-line: oklch(70% 0.16 210 / 0.2);
  --color-map-fill: oklch(11% 0.015 240 / 0.9);
  --color-panel-glow: oklch(70% 0.16 210 / 0.18);
  
  --color-code: oklch(9% 0.015 240);
  --color-code-ink: oklch(88% 0.015 240);
  --color-code-glow: oklch(70% 0.16 210 / 0.25);
  --color-scan: oklch(70% 0.16 210 / 0.05);
  --color-link-hover: oklch(75% 0.13 210);
  --color-transparent: transparent;

  --color-bar-javascript: oklch(75% 0.15 88);
  --color-bar-typescript: oklch(67% 0.16 226);
  --color-bar-python: oklch(68% 0.13 154);
  --color-bar-css: oklch(67% 0.17 24);
  --color-bar-solidity: oklch(66% 0.14 294);
  --color-bar-shell: oklch(74% 0.14 80);
  --color-bar-html: oklch(72% 0.14 48);
  --color-theme-dark: oklch(70% 0.16 210);
  --color-theme-cyber: oklch(65% 0.29 330);
  --color-theme-matrix: oklch(88% 0.16 142);
  --color-theme-light: oklch(55% 0.18 232);

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-outlier: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --space-3xs: 0.125rem;
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 9rem;

  --text-xs: 0.72rem;
  --text-sm: 0.86rem;
  --text-base: 1rem;
  --text-md: 1.2rem;
  --text-lg: 1.5rem;
  --text-xl: 1.9rem;
  --text-2xl: 2.4rem;
  --text-3xl: 3rem;
  --text-display-s: clamp(2.5rem, 7vw, 4.75rem);
  --text-display: clamp(3rem, 8.5vw, 6.25rem);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-micro: 120ms;
  --dur-short: 220ms;
  --dur-long: 420ms;

  --rule-hair: 1px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --page-gutter: clamp(1rem, 4vw, 3.5rem);
  --max-page: 1180px;

  --z-base: 1;
  --z-sticky: 200;
}

/* Theme Override: Cyber Neon */
[data-theme="cyber"] {
  color-scheme: dark;

  --color-paper: oklch(12% 0.03 285);
  --color-paper-2: oklch(9% 0.03 285);
  --color-paper-3: oklch(16% 0.04 285);
  --color-ink: oklch(97% 0.015 285);
  --color-ink-2: oklch(85% 0.02 285);
  --color-muted: oklch(68% 0.03 285);
  --color-rule: oklch(20% 0.05 285);
  --color-rule-strong: oklch(30% 0.07 285);
  --color-panel: oklch(15% 0.035 285 / 0.7);
  --color-panel-2: oklch(18% 0.04 285);
  --color-panel-3: oklch(24% 0.04 285);
  
  --color-accent: oklch(65% 0.29 330);
  --color-accent-ink: oklch(10% 0.02 330);
  --color-accent-warm: oklch(70% 0.25 30);
  --color-accent-sage: oklch(70% 0.2 190);
  --color-accent-gold: oklch(82% 0.18 95);
  
  --color-accent-soft: oklch(65% 0.29 330 / 0.2);
  --color-accent-warm-soft: oklch(70% 0.25 30 / 0.2);
  --color-accent-sage-soft: oklch(70% 0.2 190 / 0.2);
  --color-accent-gold-soft: oklch(82% 0.18 95 / 0.2);
  
  --color-focus: oklch(65% 0.29 330);
  --color-shadow: oklch(4% 0.03 285 / 0.6);
  --color-scrim: oklch(12% 0.03 285 / 0.85);
  --color-map-line: oklch(70% 0.2 190 / 0.25);
  --color-map-fill: oklch(9% 0.03 285 / 0.95);
  --color-panel-glow: oklch(65% 0.29 330 / 0.22);
  
  --color-code: oklch(8% 0.03 285);
  --color-code-ink: oklch(92% 0.015 285);
  --color-code-glow: oklch(65% 0.29 330 / 0.3);
  --color-scan: oklch(65% 0.29 330 / 0.06);
  --color-link-hover: oklch(70% 0.22 330);
}

/* Theme Override: Matrix CRT Phosphor */
[data-theme="matrix"] {
  color-scheme: dark;

  --color-paper: oklch(5% 0 0);
  --color-paper-2: oklch(2% 0 0);
  --color-paper-3: oklch(8% 0 0);
  --color-ink: oklch(88% 0.16 142);
  --color-ink-2: oklch(78% 0.13 142);
  --color-muted: oklch(60% 0.1 142);
  --color-rule: oklch(35% 0.1 142);
  --color-rule-strong: oklch(50% 0.12 142);
  --color-panel: oklch(8% 0.02 142 / 0.45);
  --color-panel-2: oklch(10% 0.02 142);
  --color-panel-3: oklch(15% 0.03 142);
  
  --color-accent: oklch(88% 0.16 142);
  --color-accent-ink: oklch(5% 0.01 142);
  --color-accent-warm: oklch(80% 0.14 110);
  --color-accent-sage: oklch(82% 0.15 155);
  --color-accent-gold: oklch(88% 0.16 142);
  
  --color-accent-soft: oklch(88% 0.16 142 / 0.25);
  --color-accent-warm-soft: oklch(80% 0.14 110 / 0.25);
  --color-accent-sage-soft: oklch(82% 0.15 155 / 0.25);
  --color-accent-gold-soft: oklch(88% 0.16 142 / 0.25);
  
  --color-focus: oklch(88% 0.16 142);
  --color-shadow: oklch(0% 0 0 / 0.85);
  --color-scrim: oklch(5% 0 0 / 0.92);
  --color-map-line: oklch(88% 0.16 142 / 0.18);
  --color-map-fill: oklch(2% 0 0 / 0.96);
  --color-panel-glow: oklch(88% 0.16 142 / 0.25);
  
  --color-code: oklch(2% 0 0);
  --color-code-ink: oklch(88% 0.16 142);
  --color-code-glow: oklch(88% 0.16 142 / 0.3);
  --color-scan: oklch(88% 0.16 142 / 0.12);
  --color-link-hover: oklch(92% 0.17 142);

  --font-display: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
  --font-body: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
}

/* Theme Override: Editorial Light (Original styling refined) */
[data-theme="light"] {
  color-scheme: light;

  --color-paper: oklch(97% 0.012 122);
  --color-paper-2: oklch(93.5% 0.018 120);
  --color-paper-3: oklch(89% 0.02 118);
  --color-ink: oklch(17% 0.018 238);
  --color-ink-2: oklch(32% 0.018 238);
  --color-muted: oklch(48% 0.016 236);
  --color-rule: oklch(82% 0.016 124);
  --color-rule-strong: oklch(67% 0.024 128);
  --color-panel: oklch(99% 0.006 120);
  --color-panel-2: oklch(91% 0.015 122);
  --color-panel-3: oklch(23% 0.02 238);
  
  --color-accent: oklch(55% 0.18 232);
  --color-accent-ink: oklch(98% 0.012 122);
  --color-accent-warm: oklch(61% 0.18 30);
  --color-accent-sage: oklch(58% 0.12 154);
  --color-accent-gold: oklch(72% 0.14 88);
  
  --color-accent-soft: oklch(55% 0.18 232 / 0.16);
  --color-accent-warm-soft: oklch(61% 0.18 30 / 0.15);
  --color-accent-sage-soft: oklch(58% 0.12 154 / 0.16);
  --color-accent-gold-soft: oklch(72% 0.14 88 / 0.18);
  
  --color-focus: oklch(58% 0.19 232);
  --color-shadow: oklch(18% 0.018 238 / 0.1);
  --color-scrim: oklch(97% 0.012 122 / 0.82);
  --color-map-line: oklch(55% 0.18 232 / 0.24);
  --color-map-fill: oklch(99% 0.006 120 / 0.92);
  --color-panel-glow: oklch(55% 0.18 232 / 0.08);
  
  --color-code: oklch(21% 0.018 238);
  --color-code-ink: oklch(94% 0.014 126);
  --color-code-glow: oklch(55% 0.18 232 / 0.28);
  --color-scan: oklch(94% 0.014 126 / 0.03);
  --color-link-hover: oklch(46% 0.2 232);

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
}