:root {
    /* --- Modern Dark Palette --- */
    --bg-body: #0e0e12;
    /* Deepest background */
    --bg-surface: #18181b;
    /* Card/Nav background */
    --bg-surface-hover: #27272a;
    /* Hover state */

    --primary: #8b5cf6;
    /* Electric Violet - Main Brand Color */
    --primary-hover: #7c3aed;
    --secondary: #06b6d4;
    /* Neon Cyan - Accents */

    --text-main: #f3f4f6;
    /* White/Grey */
    --text-muted: #9ca3af;
    /* Grey */

    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;

    --border-color: #27272a;

    /* Typography */
    --font-heading: 'Teko', sans-serif;
    --font-body: 'Outfit', sans-serif;

    /* Spacing & Radius */
    --radius-xl: 16px;
    --radius-lg: 12px;
    --radius-md: 8px;

    /* Scroll Mask Colors */
    --scroll-mask: linear-gradient(to right, transparent, var(--bg-body));
}

[data-theme="light"] {
    --bg-body: #f3f4f6;
    /* Light Grey Background */
    --bg-surface: #ffffff;
    /* White Surface */
    --bg-surface-hover: #f9fafb;

    --primary: #7c3aed;
    /* Violet 600 - More visible on light */
    --primary-hover: #6d28d9;
    --secondary: #0891b2;
    /* Cyan 600 */

    --text-main: #111827;
    /* Grey 900 */
    --text-muted: #4b5563;
    /* Grey 600 - Better contrast */

    --border-color: #e5e7eb;
    /* Grey 200 */
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: var(--font-body);
    font-weight: 300;
    min-height: 100vh;
    overflow-x: hidden;
}

/* --- Typography --- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}


/* --- Components --- */
.card-custom {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.card-custom:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-primary-custom {
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary-custom:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.4);
}

.form-control-custom {
    background-color: var(--bg-body);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
}

.form-control-custom:focus {
    background-color: var(--bg-body);
    border-color: var(--primary);
    color: var(--text-main);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.25);
}

/* --- Utilities --- */
.glass-effect {
    background: rgba(24, 24, 27, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- Animations --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* --- Theme Utilities --- */
.theme-text {
    color: var(--text-main);
}

.text-muted {
    color: var(--text-muted) !important;
}

/* Scroll Mask */
.scroll-mask-right {
    mask-image: linear-gradient(to right, black 90%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, black 90%, transparent 100%);
}

/* Fix background-clip lint */
.text-primary-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Transition for Theme Switch */
body,
.card-custom,
.btn,
.form-control-custom {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}