/* Base theme system with mint/dark green palette and orange glow */

:root {
    /* Core color tokens (light theme - pastel, shifted to blue accents) */
    --color-bg: oklch(98% 0.003 247.858);
    --color-bg-muted: oklch(96% 0.007 247.896);
    --color-card-bg: oklch(92% 0.013 255.508);
    --color-muted-border: rgba(0, 0, 0, 0.08);
    --color-text-primary: oklch(20% 0.042 265.755);
    --color-text-secondary: rgba(32, 40, 56, 0.72);
    --color-fg: var(--color-text-primary);
    --color-muted: var(--color-text-secondary);
    --color-accent-mint: oklch(58% 0.158 241.966); /* blue primary */
    --color-accent-darkgreen: oklch(55% 0.18 240);  /* softened blue */
    --color-accent-glow: rgba(58, 158, 255, 0.16);
    --drop-shadow-glow: 0 0 18px rgba(58, 158, 255, 0.18);

    /* Accent alpha steps (light) */
    --accent-soft-08: rgba(58, 158, 255, 0.12);
    --accent-soft-12: rgba(58, 158, 255, 0.16);
    --accent-soft-14: rgba(58, 158, 255, 0.20);
    --accent-soft-24: rgba(58, 158, 255, 0.28);
    --accent-focus: rgba(58, 158, 255, 0.32);

    /* Convenience aliases */
    --color-bg-alt: var(--color-bg-muted);
    --color-primary: var(--color-accent-mint);
    --color-primary-contrast: oklch(97% 0.013 236.62);
    --color-link: var(--color-accent-mint);
    --color-link-hover: oklch(64% 0.222 41.116);

    /* Legacy accent tokens (kept for existing styles) */
    --accent1: var(--color-accent-mint);
    --accent2: #12a978;
    --accent3: #5af2c6;
    --accent4: #6fd3c7;
    --darkRed: #0b3d2e;

    /* Background gradients */
    --bg1: var(--color-bg);
    --bg2: var(--color-bg-muted);
    --bg3: var(--color-card-bg);
    --bg4: oklch(92% 0.013 255.508);
    --bgRad1: rgba(90, 140, 255, 0.10);
    --bgRad2: rgba(98, 196, 255, 0.12);
    --bgRad3: rgba(140, 180, 255, 0.10);

    --card: var(--color-card-bg);
    --cardSolid: var(--color-card-bg);
    --surface-translucent: color-mix(in srgb, var(--color-card-bg) 86%, transparent);
    --border: var(--color-muted-border);
    --panelBorder: rgba(90, 140, 255, 0.14);
    --shadow: 0 10px 32px rgba(0, 0, 0, 0.08);

    --focus: rgba(90, 140, 255, 0.32);

    /* Hero gradient control */
    --hero-gradient-end: var(--color-bg);

    /* Glow + matrix */
    --glow-orange: var(--color-accent-glow);
    --shadow-glow: var(--drop-shadow-glow);
    --matrix-color: rgba(90, 140, 255, 0.28);
    --matrix-fade: rgba(240, 245, 255, 0.08);

    /* Layout + typography */
    --radius: 16px;
    --max: 1180px;
    --spacing-unit: 8px;
    --border-radius: 16px;
    --header-height: 72px;
}

html[data-theme="dark"] {
    /* Dark theme reverted to original Tora palette */
    --color-bg: #0b0f0d;
    --color-bg-muted: #0f1612;
    --color-card-bg: rgba(17, 26, 22, 0.9);
    --color-muted-border: rgba(62, 230, 177, 0.22);
    --color-text-primary: #e7f5ee;
    --color-text-secondary: rgba(231, 245, 238, 0.68);
    --color-accent-mint: #3ee6b1;
    --color-accent-darkgreen: #0b3d2e;
    --color-accent-glow: rgba(62, 230, 177, 0.32);
    --drop-shadow-glow: 0 0 20px rgba(62, 230, 177, 0.30);

    /* Accent alpha steps (dark) */
    --accent-soft-08: rgba(62, 230, 177, 0.08);
    --accent-soft-12: rgba(62, 230, 177, 0.12);
    --accent-soft-14: rgba(62, 230, 177, 0.14);
    --accent-soft-24: rgba(62, 230, 177, 0.24);
    --accent-focus: rgba(62, 230, 177, 0.42);

    --color-primary: var(--color-accent-mint);
    --color-primary-contrast: #e7f5ee;
    --color-link: #3ee6b1;
    --color-link-hover: #52f0c0;

    --bg1: #0b0f0d;
    --bg2: #0f1612;
    --bg3: #0c1914;
    --bg4: #0a1410;
    --bgRad1: rgba(62, 230, 177, 0.10);
    --bgRad2: rgba(11, 61, 46, 0.22);
    --bgRad3: rgba(62, 230, 177, 0.12);

    --card: var(--color-card-bg);
    --cardSolid: var(--color-card-bg);
    --surface-translucent: rgba(17, 26, 22, 0.82);
    --border: var(--color-muted-border);
    --panelBorder: rgba(62, 230, 177, 0.18);
    --shadow: 0 14px 40px rgba(0, 0, 0, 0.55);

    --focus: rgba(62, 230, 177, 0.42);

    --hero-gradient-end: var(--color-bg);

    --glow-orange: var(--color-accent-glow);
    --shadow-glow: var(--drop-shadow-glow);
    --matrix-color: rgba(62, 230, 177, 0.34);
    --matrix-fade: rgba(11, 15, 13, 0.10);

    --accent1: #3ee6b1;
    --accent2: #21c494;
    --accent3: #5af2c6;
    --accent4: #6fd3c7;
    --darkRed: #3ee6b1;
}

/* Theonys bridge variables (keeps existing CSS working) */
:root {
    --background-color: var(--color-bg);
    --surface-color: var(--color-card-bg);
    --text-color: var(--color-text-primary);
    --heading-color: var(--color-text-primary);
    --primary-color: var(--color-primary);
    --secondary-color: var(--color-link);
    --accent-color: var(--color-primary);
    --border-color: var(--border);
    --light-gray-color: rgba(15, 26, 20, 0.06);
    --charcoal-blue: #0f1a14;
    --ash-grey: rgba(231, 245, 238, 0.85);

    /* Legacy text tokens used in imported styles */
    --ink: var(--color-text-primary);
    --muted: var(--color-text-secondary);
}

html[data-theme="dark"] {
    --light-gray-color: rgba(231, 245, 238, 0.08);
    --charcoal-blue: #0b0f0d;
    --ash-grey: rgba(231, 245, 238, 0.82);

    --ink: var(--color-fg);
    --muted: var(--color-muted);
}

* {
    box-sizing: border-box;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

html,
body {
    padding: 0;
    margin: 0;
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--color-fg);
    background:
        radial-gradient(circle at top left, var(--bgRad1), transparent 42%),
        radial-gradient(circle at 20% 90%, var(--bgRad2), transparent 46%),
        radial-gradient(circle at 90% 25%, var(--bgRad3), transparent 48%),
        linear-gradient(135deg, var(--bg1) 0%, var(--bg2) 28%, var(--bg3) 62%, var(--bg4) 100%);
    min-height: 100%;
    position: relative;
    z-index: 1;
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

.container {
    width: min(var(--max), calc(100% - 32px));
    margin: 0 auto;
}

.text-center {
    text-align: center;
}

.bg-light {
    background: var(--surface-color);
}

.skip-link {
    position: absolute;
    left: -999px;
    top: 12px;
    background: var(--cardSolid);
    border: 1px solid var(--border);
    padding: 10px 12px;
    border-radius: 14px;
    box-shadow: var(--shadow);
    z-index: 9999;
}

.skip-link:focus {
    left: 12px;
    outline: 3px solid var(--focus);
    outline-offset: 2px;
}

/* Theme switch */
.theme-switch {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 245, 252, 0.78);
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: transform 180ms cubic-bezier(0.2, 0.8, 0.2, 1), background-color 180ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.theme-switch:hover {
    text-decoration: none;
    background: rgba(255, 240, 248, 0.92);
    box-shadow: 0 8px 18px rgba(180, 140, 130, 0.15);
    transform: translateY(-1px);
}

.theme-switch:focus {
    outline: 3px solid var(--focus);
    outline-offset: 2px;
}

.theme-switch .icon {
    width: 16px;
    height: 16px;
    display: inline-block;
}

.theme-switch .track {
    width: 44px;
    height: 24px;
    border-radius: 999px;
    position: relative;
    background: rgba(0, 0, 0, 0.10);
    border: 1px solid var(--border);
}

.theme-switch .thumb {
    width: 18px;
    height: 18px;
    border-radius: 999px;
    position: absolute;
    top: 2px;
    left: 2px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--border);
    transition: transform 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform;
}

.theme-switch[aria-checked="true"] .thumb {
    transform: translateX(20px);
}

html[data-theme="dark"] .theme-switch {
    background: rgba(255, 255, 255, 0.12);
}

html[data-theme="dark"] .theme-switch .track {
    background: rgba(255, 255, 255, 0.14);
}

html[data-theme="dark"] .theme-switch .thumb {
    background: rgba(255, 255, 255, 0.92);
}

/* Matrix layer */
.matrix-layer {
    position: fixed;
    inset: 0;
    width: 100%;
    max-width: none;
    z-index: 0;
    pointer-events: none;
    opacity: 0.35;
    mask-image: radial-gradient(circle at 50% 45%, transparent 0%, transparent 38%, black 60%);
    -webkit-mask-image: radial-gradient(circle at 50% 45%, transparent 0%, transparent 38%, black 60%);
    mask-repeat: no-repeat;
    mask-size: cover;
}

html[data-theme="dark"] .matrix-layer {
    opacity: 0.55;
}

@media (max-width: 768px) {
    .matrix-layer {
        mask-image: none;
        -webkit-mask-image: none;
        opacity: 0.2;
        width: 100vw;
        min-width: 100vw;
        left: 0;
        right: 0;
        transform: none;
    }
}

/* Lift app content above matrix */
.site-header,
main,
.site-footer {
    position: relative;
    z-index: 1;
}

/* Utility: subtle card surface */
.surface {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
    }
}