html[data-theme="aether"] {
  /* Aether palette - matching aether.asiier.com */
  --steel-900: #0a0a0f;
  --steel-850: #0a0a0f;
  --steel-800: #0a0a0f;
  --steel-750: #16161d;
  --steel-700: #121214;
  --steel-650: #1e1e24;
  --steel-600: #27272e;
  --steel-550: #3f3f46;
  --steel-500: #52525b;
  --steel-450: #6b7280;
  --steel-400: #6b7280;
  --steel-350: #9ca3af;
  --steel-300: #9ca3af;
  --steel-250: #9ca3af;
  --steel-200: #9ca3af;
  --steel-150: #9ca3af;
  --steel-100: #f0f0f5;
  --is-dark-theme: true;

  /* Primary - Aether purple */
  --color-primary: #7f5af0;
  --color-primary-contrast: #ffffff;
  --color-primary-dark-1: #6d4bd4;
  --color-primary-dark-2: #5e3dbf;
  --color-primary-dark-3: #4f32a8;
  --color-primary-dark-4: #402891;
  --color-primary-dark-5: #311e7a;
  --color-primary-dark-6: #221563;
  --color-primary-dark-7: #130c4c;
  --color-primary-light-1: #8b6cf2;
  --color-primary-light-2: #a78bfa;
  --color-primary-light-3: #c4b5fd;
  --color-primary-light-4: #ddd6fe;
  --color-primary-light-5: #ede9fe;
  --color-primary-light-6: #f5f3ff;
  --color-primary-light-7: #faf9ff;
  --color-primary-alpha-10: #7f5af019;
  --color-primary-alpha-20: #7f5af033;
  --color-primary-alpha-30: #7f5af04d;
  --color-primary-alpha-40: #7f5af066;
  --color-primary-alpha-50: #7f5af080;
  --color-primary-alpha-60: #7f5af099;
  --color-primary-alpha-70: #7f5af0b3;
  --color-primary-alpha-80: #7f5af0cc;
  --color-primary-alpha-90: #7f5af0e1;
  --color-primary-hover: var(--color-primary-light-1);
  --color-primary-active: var(--color-primary-light-2);

  /* Secondary / UI chrome */
  --color-secondary: var(--steel-700);
  --color-secondary-dark-1: var(--steel-550);
  --color-secondary-dark-2: var(--steel-500);
  --color-secondary-dark-3: var(--steel-450);
  --color-secondary-dark-4: var(--steel-400);
  --color-secondary-dark-5: var(--steel-350);
  --color-secondary-dark-6: var(--steel-300);
  --color-secondary-dark-7: var(--steel-250);
  --color-secondary-dark-8: var(--steel-200);
  --color-secondary-dark-9: var(--steel-150);
  --color-secondary-dark-10: var(--steel-150);
  --color-secondary-dark-11: var(--steel-150);
  --color-secondary-dark-12: var(--steel-150);
  --color-secondary-dark-13: var(--steel-150);
  --color-secondary-light-1: var(--steel-650);
  --color-secondary-light-2: var(--steel-700);
  --color-secondary-light-3: var(--steel-750);
  --color-secondary-light-4: var(--steel-800);
  --color-secondary-alpha-10: #2b364219;
  --color-secondary-alpha-20: #2b364233;
  --color-secondary-alpha-30: #2b36424b;
  --color-secondary-alpha-40: #2b364266;
  --color-secondary-alpha-50: #2b364280;
  --color-secondary-alpha-60: #2b364299;
  --color-secondary-alpha-70: #2b3642b3;
  --color-secondary-alpha-80: #2b3642cc;
  --color-secondary-alpha-90: #2b3642e1;
  --color-secondary-hover: var(--color-secondary-light-1);
  --color-secondary-active: var(--color-secondary-light-2);

  /* Console */
  --color-console-fg: #eeeff2;
  --color-console-fg-subtle: #9ca3af;
  --color-console-bg: #0a0a0f;
  --color-console-border: #27272e;
  --color-console-hover-bg: #ffffff08;
  --color-console-active-bg: #1e1e24;
  --color-console-menu-bg: #121214;
  --color-console-menu-border: #27272e;

  /* Semantic colors - keeping original values */
  --color-red: #b91c1c;
  --color-orange: #ea580c;
  --color-yellow: #ca8a04;
  --color-olive: #91a313;
  --color-green: #15803d;
  --color-teal: #0d9488;
  --color-blue: #2563eb;
  --color-violet: #7c3aed;
  --color-purple: #9333ea;
  --color-pink: #db2777;
  --color-brown: #a47252;
  --color-grey: var(--steel-500);
  --color-black: #000000;
  --color-red-light: #dc2626;
  --color-orange-light: #f97316;
  --color-yellow-light: #eab308;
  --color-olive-light: #839311;
  --color-green-light: #16a34a;
  --color-teal-light: #14b8a6;
  --color-blue-light: #3b82f6;
  --color-violet-light: #8b5cf6;
  --color-purple-light: #a855f7;
  --color-pink-light: #ec4899;
  --color-brown-light: #94674a;
  --color-grey-light: var(--steel-300);
  --color-black-light: #1f2937;
  --color-red-dark-1: #a71919;
  --color-orange-dark-1: #d34f0b;
  --color-yellow-dark-1: #b67c04;
  --color-olive-dark-1: #839311;
  --color-green-dark-1: #137337;
  --color-teal-dark-1: #0c857a;
  --color-blue-dark-1: #1554e0;
  --color-violet-dark-1: #6a1feb;
  --color-purple-dark-1: #8519e7;
  --color-pink-dark-1: #c7216b;
  --color-brown-dark-1: #94674a;
  --color-black-dark-1: #0f1623;
  --color-red-dark-2: #941616;
  --color-orange-dark-2: #bb460a;
  --color-yellow-dark-2: #ca8a04;
  --color-olive-dark-2: #91a313;
  --color-green-dark-2: #15803d;
  --color-teal-dark-2: #0a766d;
  --color-blue-dark-2: #2563eb;
  --color-violet-dark-2: #5c14d8;
  --color-purple-dark-2: #7c3aed;
  --color-pink-dark-2: #b11d5f;
  --color-brown-dark-2: #a47252;
  --color-black-dark-2: #000000;

  /* ANSI colors */
  --color-ansi-black: #1d2328;
  --color-ansi-red: #cc4848;
  --color-ansi-green: #87ab63;
  --color-ansi-yellow: #cc9903;
  --color-ansi-blue: #3a8ac6;
  --color-ansi-magenta: #d22e8b;
  --color-ansi-cyan: #00918a;
  --color-ansi-white: var(--color-console-fg-subtle);
  --color-ansi-bright-black: #424851;
  --color-ansi-bright-red: #d15a5a;
  --color-ansi-bright-green: #93b373;
  --color-ansi-bright-yellow: #eaaf03;
  --color-ansi-bright-blue: #4e96cc;
  --color-ansi-bright-magenta: #d74397;
  --color-ansi-bright-cyan: #00b6ad;
  --color-ansi-bright-white: var(--color-console-fg);

  /* Misc */
  --color-gold: #b1983b;
  --color-white: #ffffff;
  --color-pure-black: #000000;

  /* Diff colors - subtle dark */
  --color-diff-removed-word-bg: #5c2020;
  --color-diff-added-word-bg: #1b4a2a;
  --color-diff-removed-row-bg: #2d1515;
  --color-diff-moved-row-bg: #825718;
  --color-diff-added-row-bg: #13261a;
  --color-diff-removed-row-border: #5c2020;
  --color-diff-moved-row-border: #a67a1d;
  --color-diff-added-row-border: #1b4a2a;
  --color-diff-inactive: var(--steel-650);

  /* Status colors */
  --color-error-border: #5c2020;
  --color-error-bg: #2d1515;
  --color-error-bg-active: #5c2020;
  --color-error-bg-hover: #5c2020;
  --color-error-text: #fef2f2;
  --color-success-border: #1b4a2a;
  --color-success-bg: #13261a;
  --color-success-text: #aef0c2;
  --color-warning-border: #825718;
  --color-warning-bg: #332410;
  --color-warning-text: #fff388;
  --color-info-border: #2e50b0;
  --color-info-bg: #1a2550;
  --color-info-text: var(--steel-100);

  /* Badges */
  --color-red-badge: #b91c1c;
  --color-red-badge-bg: #b91c1c22;
  --color-red-badge-hover-bg: #b91c1c44;
  --color-green-badge: #16a34a;
  --color-green-badge-bg: #16a34a22;
  --color-green-badge-hover-bg: #16a34a44;
  --color-yellow-badge: #ca8a04;
  --color-yellow-badge-bg: #ca8a0422;
  --color-yellow-badge-hover-bg: #ca8a0444;
  --color-orange-badge: #ea580c;
  --color-orange-badge-bg: #ea580c22;
  --color-orange-badge-hover-bg: #ea580c44;
  --color-git: #f05133;

  /* Icons */
  --color-icon-green: #4ade80;
  --color-icon-red: #f87171;
  --color-icon-purple: var(--color-primary-light-2);

  /* --- SURFACE MAPPINGS (Aether) --- */

  /* Page background */
  --color-body: var(--steel-900);
  --color-box-header: var(--steel-700);
  --color-box-body: var(--steel-750);
  --color-box-body-highlight: var(--steel-650);

  /* Text */
  --color-text-dark: #ffffff;
  --color-text: var(--steel-100);
  --color-text-light: #9ca3af;
  --color-text-light-1: #9ca3af;
  --color-text-light-2: #6b7280;
  --color-text-light-3: #52525b;

  /* Footer, timeline */
  --color-footer: #060609;
  --color-timeline: var(--steel-600);

  /* Inputs */
  --color-input-text: var(--steel-100);
  --color-input-background: var(--steel-650);
  --color-input-toggle-background: var(--steel-650);
  --color-input-border: var(--steel-600);
  --color-input-border-hover: var(--steel-550);

  /* Header */
  --color-header-wrapper: var(--steel-850);
  --color-header-wrapper-transparent: #0a0a0f00;

  /* Light / borders */
  --color-light: #00000028;
  --color-light-mimic-enabled: rgba(0, 0, 0, calc(40 / 255 * 222 / 255 / var(--opacity-disabled)));
  --color-light-border: #ffffff0f;

  /* Hover / active */
  --color-hover: var(--steel-650);
  --color-active: var(--steel-600);

  /* Menu / card / code */
  --color-menu: var(--steel-700);
  --color-card: var(--steel-750);
  --color-markup-table-row: #ffffff06;
  --color-markup-code-block: var(--steel-750);
  --color-markup-code-inline: var(--steel-600);
  --color-button: var(--steel-600);
  --color-code-bg: var(--steel-750);
  --color-shadow: #00000060;
  --color-secondary-bg: var(--steel-700);

  /* Focus / expand */
  --color-text-focus: #fff;
  --color-expand-button: var(--steel-600);
  --color-placeholder-text: var(--color-text-light-3);
  --color-editor-line-highlight: var(--steel-650);
  --color-project-board-bg: var(--color-secondary-light-3);
  --color-project-board-dark-label: var(--color-text-light-3);
  --color-caret: var(--color-text);

  /* Reactions */
  --color-reaction-bg: #ffffff0a;
  --color-reaction-active-bg: var(--color-primary-alpha-30);
  --color-reaction-hover-bg: var(--color-primary-alpha-40);

  /* Tooltips */
  --color-tooltip-text: #ffffff;
  --color-tooltip-bg: #000000f0;

  /* Navigation */
  --color-nav-bg: var(--steel-900);
  --color-nav-hover-bg: var(--steel-650);
  --color-nav-text: var(--color-text);
  --color-secondary-nav-bg: var(--color-body);

  /* Labels */
  --color-label-text: #ffffff;
  --color-label-bg: var(--steel-600);
  --color-label-hover-bg: var(--steel-550);
  --color-label-active-bg: var(--steel-500);
  --color-label-bg-alt: var(--steel-550);

  /* Accent / highlight */
  --color-accent: var(--color-primary-light-1);
  --color-small-accent: var(--color-primary-light-3);
  --color-highlight-fg: var(--color-primary-light-3);
  --color-highlight-bg: var(--color-primary-alpha-20);
  --color-overlay-backdrop: #080808c0;

  /* Checkerboard */
  --checkerboard-color-1: #27272e;
  --checkerboard-color-2: #1e1e24;

  accent-color: var(--color-accent);
  color-scheme: dark;
}