:root {
    /* Color Palette - Premium & Elegant */
    --primary-color: #002147;
    --secondary-color: #d11f26;
    --accent-color: #00bcd4;
    --bg-light: #f8f9fa;
    --text-light: #212529;
    --bg-dark: #0a192f;
    --text-dark: #e6f1ff;
    --card-bg-light: #ffffff;
    --card-bg-dark: #112240;
    --nav-bg-light: rgba(255, 255, 255, 0.9);
    --nav-bg-dark: rgba(10, 25, 47, 0.9);
    --transition-base: 0.3s ease-in-out;
}

[data-theme="dark"] {
    --bg-body: var(--bg-dark);
    --text-body: var(--text-dark);
    --card-body: var(--card-bg-dark);
    --nav-body: var(--nav-bg-dark);
}

[data-theme="light"] {
    --bg-body: var(--bg-light);
    --text-body: var(--text-light);
    --card-body: var(--card-bg-light);
    --nav-body: var(--nav-bg-light);
}

body {
    background-color: var(--bg-body);
    color: var(--text-body);
    transition: background-color var(--transition-base), color var(--transition-base);
    font-family: 'Inter', sans-serif;
}

body[lang="ar"] {
    font-family: 'Tajawal', sans-serif;
    direction: rtl;
}

/* Common Components */
.btn-primary-custom {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border: none;
    color: white !important;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.2s;
}

.btn-primary-custom:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 188, 212, 0.4);
}

.btn-secondary-custom {
    background-color: var(--secondary-color);
    border: none;
    color: white !important;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
}

/* Glassmorphism for cards */
.card {
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2) !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-body);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

/* Global Dark Mode Fixes */
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6,
[data-theme="dark"] .h1,
[data-theme="dark"] .h2,
[data-theme="dark"] .h3,
[data-theme="dark"] .h4,
[data-theme="dark"] .h5,
[data-theme="dark"] .h6 {
    color: var(--text-dark) !important;
}

[data-theme="dark"] .card h3,
[data-theme="dark"] .card h4,
[data-theme="dark"] .card .h5,
[data-theme="dark"] .card .h4 {
    color: var(--accent-color) !important;
}

[data-theme="dark"] p,
[data-theme="dark"] span,
[data-theme="dark"] li,
[data-theme="dark"] .nav-link,
[data-theme="dark"] .card-text {
    color: var(--text-dark) !important;
}

[data-theme="dark"] .bg-light,
[data-theme="dark"] .bg-light-subtle,
[data-theme="dark"] .bg-premium {
    background-color: var(--bg-dark) !important;
    background-image: none !important;
}

[data-theme="dark"] .text-muted {
    color: #cbd5e0 !important;
}

[data-theme="dark"] .accordion-button:not(.collapsed) {
    background-color: var(--primary-color) !important;
    color: white !important;
}

[data-theme="dark"] .border,
[data-theme="dark"] .border-start,
[data-theme="dark"] .border-bottom,
[data-theme="dark"] .border-top {
    border-color: rgba(230, 241, 255, 0.2) !important;
}

/* Icon High Contrast */
[data-theme="dark"] .text-primary {
    color: var(--accent-color) !important;
}

[data-theme="dark"] .text-secondary {
    color: #ffca28 !important;
}

[data-theme="dark"] .text-info {
    color: #00e5ff !important;
}

[data-theme="dark"] .text-success {
    color: #69f0ae !important;
}

[data-theme="dark"] .text-warning {
    color: #ffca28 !important;
}