/*
 * AE Firefly — Indigo variant
 * "Deep night, rich as velvet."
 * Aether Platform / One Sky IT, LLC — Design System Theme
 *
 * Aesthetic vision (Scott Idem, 2026-03-09):
 *   A deep, rich purple-indigo variant of the Firefly system.
 *   Inspired by the deep indigo of a clear night sky — the hours
 *   before dawn when the dark is at its most velvety and profound.
 *   Authoritative and calm, with a warm rose accent for warmth.
 *
 * Color philosophy:
 *   Primary   — Deep Indigo: rich blue-violet (~266°), luminous depth
 *   Secondary — Violet: companion purple, warmer/rosier tone (~290°)
 *   Tertiary  — Dusty Rose: warm complement, plum/rose tones (~341°)
 *   Surface   — Velvet Slate: subtly purple-tinged neutral; near-white
 *               (light mode) → deep midnight indigo-grey (dark mode)
 *
 * Section 508 / WCAG 2.1 AA:
 *   - Body text (surface-950 on surface-50 light): >15:1 contrast ✓
 *   - Primary-filled buttons meet ≥3:1 for interactive components ✓
 *   - Contrast crossover points calculated per OKLCH approximate RL
 *
 * Based on: Skeleton v4 theme CSS variable structure
 * Variant of: src/ae-firefly.css (AE_Firefly)
 */

[data-theme='AE_Firefly_Indigo'] {
    --text-scaling: 1.067;
    --base-font-color: var(--color-surface-950);
    --base-font-color-dark: var(--color-surface-50);
    --base-font-family: system-ui, sans-serif;
    --base-font-size: inherit;
    --base-line-height: inherit;
    --base-font-weight: normal;
    --base-font-style: normal;
    --base-letter-spacing: 0em;
    --heading-font-color: inherit;
    --heading-font-color-dark: inherit;
    --heading-font-family: inherit;
    --heading-font-weight: bold;
    --heading-font-style: normal;
    --heading-letter-spacing: inherit;

    /* Anchors: indigo in light, lighter indigo in dark */
    --anchor-font-color: var(--color-primary-600);
    --anchor-font-color-dark: var(--color-primary-300);
    --anchor-font-family: inherit;
    --anchor-font-size: inherit;
    --anchor-line-height: inherit;
    --anchor-font-weight: inherit;
    --anchor-font-style: inherit;
    --anchor-letter-spacing: inherit;
    --anchor-text-decoration: none;
    --anchor-text-decoration-hover: underline;
    --anchor-text-decoration-active: none;
    --anchor-text-decoration-focus: none;

    --spacing: 0.25rem;
    --radius-base: 0.375rem;
    --radius-container: 0.875rem;
    --default-border-width: 1px;
    --default-divide-width: 1px;
    --default-ring-width: 1px;

    --body-background-color: var(--color-surface-50);
    --body-background-color-dark: var(--color-surface-950);

    /* ===================================================================
     * PRIMARY — Deep Indigo
     * Hue: ~266°. Rich blue-violet indigo — the color of deep night sky
     * in the hours before dawn. Luminous depth without harshness.
     * CSS named "indigo" (#4B0082) is near oklch(20%, 0.18, 302°) but
     * that's too dark to use as a 500 primary. This palette centers on
     * a richer, usable indigo that reads clearly as "indigo" while
     * maintaining sufficient contrast at mid-range shades.
     * At 500 (L≈50%): sufficient contrast with primary-50 text (≥4:1).
     * =================================================================== */
    --color-primary-50:  oklch(95.5% 0.040 270deg);
    --color-primary-100: oklch(89.5% 0.072 270deg);
    --color-primary-200: oklch(82.5% 0.108 269deg);
    --color-primary-300: oklch(74.5% 0.135 268deg);
    --color-primary-400: oklch(65.0% 0.155 267deg);
    --color-primary-500: oklch(50.5% 0.160 266deg);
    --color-primary-600: oklch(43.5% 0.152 265deg);
    --color-primary-700: oklch(37.0% 0.138 264deg);
    --color-primary-800: oklch(30.0% 0.120 263deg);
    --color-primary-900: oklch(23.0% 0.100 262deg);
    --color-primary-950: oklch(15.5% 0.080 261deg);
    --color-primary-contrast-dark:  var(--color-primary-950);
    --color-primary-contrast-light: var(--color-primary-50);
    --color-primary-contrast-50:  var(--color-primary-contrast-dark);
    --color-primary-contrast-100: var(--color-primary-contrast-dark);
    --color-primary-contrast-200: var(--color-primary-contrast-dark);
    --color-primary-contrast-300: var(--color-primary-contrast-dark);
    --color-primary-contrast-400: var(--color-primary-contrast-dark);
    --color-primary-contrast-500: var(--color-primary-contrast-light);
    --color-primary-contrast-600: var(--color-primary-contrast-light);
    --color-primary-contrast-700: var(--color-primary-contrast-light);
    --color-primary-contrast-800: var(--color-primary-contrast-light);
    --color-primary-contrast-900: var(--color-primary-contrast-light);
    --color-primary-contrast-950: var(--color-primary-contrast-light);

    /* ===================================================================
     * SECONDARY — Violet
     * Hue: ~290°. A companion purple, slightly warmer and rosier than
     * the primary indigo. Creates a rich monochromatic depth while
     * remaining clearly distinct from the primary.
     * Used for secondary actions, badges, and soft highlights.
     * =================================================================== */
    --color-secondary-50:  oklch(96.5% 0.032 297deg);
    --color-secondary-100: oklch(91.5% 0.058 295deg);
    --color-secondary-200: oklch(85.5% 0.090 293deg);
    --color-secondary-300: oklch(78.5% 0.115 292deg);
    --color-secondary-400: oklch(70.0% 0.132 291deg);
    --color-secondary-500: oklch(60.0% 0.140 290deg);
    --color-secondary-600: oklch(52.5% 0.135 289deg);
    --color-secondary-700: oklch(45.0% 0.126 288deg);
    --color-secondary-800: oklch(37.5% 0.112 286deg);
    --color-secondary-900: oklch(30.0% 0.094 284deg);
    --color-secondary-950: oklch(22.0% 0.076 282deg);
    --color-secondary-contrast-dark:  var(--color-secondary-950);
    --color-secondary-contrast-light: var(--color-secondary-50);
    --color-secondary-contrast-50:  var(--color-secondary-contrast-dark);
    --color-secondary-contrast-100: var(--color-secondary-contrast-dark);
    --color-secondary-contrast-200: var(--color-secondary-contrast-dark);
    --color-secondary-contrast-300: var(--color-secondary-contrast-dark);
    --color-secondary-contrast-400: var(--color-secondary-contrast-dark);
    --color-secondary-contrast-500: var(--color-secondary-contrast-light);
    --color-secondary-contrast-600: var(--color-secondary-contrast-light);
    --color-secondary-contrast-700: var(--color-secondary-contrast-light);
    --color-secondary-contrast-800: var(--color-secondary-contrast-light);
    --color-secondary-contrast-900: var(--color-secondary-contrast-light);
    --color-secondary-contrast-950: var(--color-secondary-contrast-light);

    /* ===================================================================
     * TERTIARY — Dusty Rose / Plum
     * Hue: ~341°. A warm, muted rose-plum that provides the crucial
     * warm counterpoint to the cool indigo-violet palette. Prevents
     * the theme from feeling cold — like the warm glow of dawn
     * breaking against a deep indigo sky.
     * Used for location chips, warm accents, tertiary elements.
     * =================================================================== */
    --color-tertiary-50:  oklch(96.5% 0.022 348deg);
    --color-tertiary-100: oklch(91.0% 0.042 346deg);
    --color-tertiary-200: oklch(84.5% 0.068 344deg);
    --color-tertiary-300: oklch(76.5% 0.095 343deg);
    --color-tertiary-400: oklch(68.0% 0.118 342deg);
    --color-tertiary-500: oklch(57.5% 0.128 341deg);
    --color-tertiary-600: oklch(50.0% 0.122 340deg);
    --color-tertiary-700: oklch(43.0% 0.112 339deg);
    --color-tertiary-800: oklch(35.5% 0.098 338deg);
    --color-tertiary-900: oklch(28.0% 0.080 337deg);
    --color-tertiary-950: oklch(20.5% 0.062 336deg);
    --color-tertiary-contrast-dark:  var(--color-tertiary-950);
    --color-tertiary-contrast-light: var(--color-tertiary-50);
    --color-tertiary-contrast-50:  var(--color-tertiary-contrast-dark);
    --color-tertiary-contrast-100: var(--color-tertiary-contrast-dark);
    --color-tertiary-contrast-200: var(--color-tertiary-contrast-dark);
    --color-tertiary-contrast-300: var(--color-tertiary-contrast-dark);
    --color-tertiary-contrast-400: var(--color-tertiary-contrast-dark);
    --color-tertiary-contrast-500: var(--color-tertiary-contrast-light);
    --color-tertiary-contrast-600: var(--color-tertiary-contrast-light);
    --color-tertiary-contrast-700: var(--color-tertiary-contrast-light);
    --color-tertiary-contrast-800: var(--color-tertiary-contrast-light);
    --color-tertiary-contrast-900: var(--color-tertiary-contrast-light);
    --color-tertiary-contrast-950: var(--color-tertiary-contrast-light);

    /* ===================================================================
     * SUCCESS — Bioluminescent Green
     * Hue: ~152°. Consistent with AE_Firefly for recognizable semantic
     * color meaning across OSIT themes.
     * =================================================================== */
    --color-success-50:  oklch(95.77% 0.05 152.69deg);
    --color-success-100: oklch(91.59% 0.06 152.00deg);
    --color-success-200: oklch(87.45% 0.08 152.08deg);
    --color-success-300: oklch(83.57% 0.09 150.85deg);
    --color-success-400: oklch(79.47% 0.11 150.71deg);
    --color-success-500: oklch(75.38% 0.12 149.99deg);
    --color-success-600: oklch(67.65% 0.11 149.94deg);
    --color-success-700: oklch(59.71% 0.09 150.42deg);
    --color-success-800: oklch(51.74% 0.08 150.24deg);
    --color-success-900: oklch(43.20% 0.06 151.12deg);
    --color-success-950: oklch(34.20% 0.04 151.44deg);
    --color-success-contrast-dark:  var(--color-success-950);
    --color-success-contrast-light: var(--color-success-50);
    --color-success-contrast-50:  var(--color-success-contrast-dark);
    --color-success-contrast-100: var(--color-success-contrast-dark);
    --color-success-contrast-200: var(--color-success-contrast-dark);
    --color-success-contrast-300: var(--color-success-contrast-dark);
    --color-success-contrast-400: var(--color-success-contrast-dark);
    --color-success-contrast-500: var(--color-success-contrast-dark);
    --color-success-contrast-600: var(--color-success-contrast-dark);
    --color-success-contrast-700: var(--color-success-contrast-light);
    --color-success-contrast-800: var(--color-success-contrast-light);
    --color-success-contrast-900: var(--color-success-contrast-light);
    --color-success-contrast-950: var(--color-success-contrast-light);

    /* ===================================================================
     * WARNING — Amber Orange
     * Consistent with AE_Firefly for recognizable semantic meaning.
     * =================================================================== */
    --color-warning-50:  oklch(97.5% 0.065 78deg);
    --color-warning-100: oklch(93.5% 0.090 75deg);
    --color-warning-200: oklch(89.5% 0.120 73deg);
    --color-warning-300: oklch(85.5% 0.145 70deg);
    --color-warning-400: oklch(81.5% 0.160 67deg);
    --color-warning-500: oklch(77.0% 0.165 65deg);
    --color-warning-600: oklch(69.5% 0.155 64deg);
    --color-warning-700: oklch(61.5% 0.140 63deg);
    --color-warning-800: oklch(53.5% 0.125 62deg);
    --color-warning-900: oklch(45.0% 0.105 61deg);
    --color-warning-950: oklch(37.0% 0.088 60deg);
    --color-warning-contrast-dark:  var(--color-warning-950);
    --color-warning-contrast-light: var(--color-warning-50);
    --color-warning-contrast-50:  var(--color-warning-contrast-dark);
    --color-warning-contrast-100: var(--color-warning-contrast-dark);
    --color-warning-contrast-200: var(--color-warning-contrast-dark);
    --color-warning-contrast-300: var(--color-warning-contrast-dark);
    --color-warning-contrast-400: var(--color-warning-contrast-dark);
    --color-warning-contrast-500: var(--color-warning-contrast-dark);
    --color-warning-contrast-600: var(--color-warning-contrast-dark);
    --color-warning-contrast-700: var(--color-warning-contrast-light);
    --color-warning-contrast-800: var(--color-warning-contrast-light);
    --color-warning-contrast-900: var(--color-warning-contrast-light);
    --color-warning-contrast-950: var(--color-warning-contrast-light);

    /* ===================================================================
     * ERROR — Soft Coral/Rose
     * Consistent with AE_Firefly for recognizable semantic meaning.
     * =================================================================== */
    --color-error-50:  oklch(95.0% 0.040 18deg);
    --color-error-100: oklch(88.0% 0.070 20deg);
    --color-error-200: oklch(80.0% 0.105 21deg);
    --color-error-300: oklch(72.0% 0.140 22deg);
    --color-error-400: oklch(64.5% 0.170 23deg);
    --color-error-500: oklch(57.5% 0.195 24deg);
    --color-error-600: oklch(51.5% 0.182 25deg);
    --color-error-700: oklch(45.5% 0.165 26deg);
    --color-error-800: oklch(39.5% 0.148 27deg);
    --color-error-900: oklch(33.0% 0.128 28deg);
    --color-error-950: oklch(26.5% 0.108 29deg);
    --color-error-contrast-dark:  var(--color-error-950);
    --color-error-contrast-light: var(--color-error-50);
    --color-error-contrast-50:  var(--color-error-contrast-dark);
    --color-error-contrast-100: var(--color-error-contrast-dark);
    --color-error-contrast-200: var(--color-error-contrast-dark);
    --color-error-contrast-300: var(--color-error-contrast-dark);
    --color-error-contrast-400: var(--color-error-contrast-light);
    --color-error-contrast-500: var(--color-error-contrast-light);
    --color-error-contrast-600: var(--color-error-contrast-light);
    --color-error-contrast-700: var(--color-error-contrast-light);
    --color-error-contrast-800: var(--color-error-contrast-light);
    --color-error-contrast-900: var(--color-error-contrast-light);
    --color-error-contrast-950: var(--color-error-contrast-light);

    /* ===================================================================
     * SURFACE — Velvet Slate
     * A subtly purple-tinged neutral — barely perceptible, it gives
     * surfaces a velvet quality that harmonizes with the indigo palette
     * without being purple-on-purple. Light mode: soft white with a
     * whisper of purple. Dark mode: deep midnight indigo-grey.
     *
     * 50  → body-bg light:  near-white with ImperceptibleISTIC purple cast
     * 950 → body-bg dark:   deep midnight with indigo depth
     * =================================================================== */
    --color-surface-50:  oklch(99.0% 0.003 270deg);
    --color-surface-100: oklch(96.5% 0.006 268deg);
    --color-surface-200: oklch(92.5% 0.010 266deg);
    --color-surface-300: oklch(87.0% 0.014 265deg);
    --color-surface-400: oklch(78.5% 0.018 265deg);
    --color-surface-500: oklch(66.5% 0.020 267deg);
    --color-surface-600: oklch(54.5% 0.022 269deg);
    --color-surface-700: oklch(42.5% 0.024 270deg);
    --color-surface-800: oklch(31.0% 0.026 272deg);
    --color-surface-900: oklch(20.5% 0.030 274deg);
    --color-surface-950: oklch(13.0% 0.034 276deg);
    --color-surface-contrast-dark:  var(--color-surface-950);
    --color-surface-contrast-light: var(--color-surface-50);
    --color-surface-contrast-50:  var(--color-surface-contrast-dark);
    --color-surface-contrast-100: var(--color-surface-contrast-dark);
    --color-surface-contrast-200: var(--color-surface-contrast-dark);
    --color-surface-contrast-300: var(--color-surface-contrast-dark);
    --color-surface-contrast-400: var(--color-surface-contrast-dark);
    --color-surface-contrast-500: var(--color-surface-contrast-dark);
    --color-surface-contrast-600: var(--color-surface-contrast-light);
    --color-surface-contrast-700: var(--color-surface-contrast-light);
    --color-surface-contrast-800: var(--color-surface-contrast-light);
    --color-surface-contrast-900: var(--color-surface-contrast-light);
    --color-surface-contrast-950: var(--color-surface-contrast-light);
}
