/* --- THEME LIGHT (النموذج الشركاتي المشرق) --- */
body.theme-light {
    --bg-color: #f8f9fa;
    --surface-color: #ffffff;
    --surface-light: #e9ecef;
    --text-primary: #121212;
    --text-secondary: #495057;
    --border-color: #dee2e6;
}

body.theme-light .hero {
    background-color: #f8f9fa;
}

body.theme-light .hero-overlay {
    background: linear-gradient(to right, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.6) 100%);
}
html[lang="en"] body.theme-light .hero-overlay {
    background: linear-gradient(to left, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.6) 100%);
}

body.theme-light .navbar {
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(0,0,0,0.1);
}
body.theme-light .navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
body.theme-light .mobile-menu {
    background-color: #ffffff;
}

/* --- THEME DYNAMIC (النموذج الديناميكي الجريء) --- */
body.theme-dynamic {
    --bg-color: #050a1f; /* Midnight Blue */
    --surface-color: #0a1128;
    --surface-light: #162447;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --accent-color: #ffb703; /* Warning Orange/Yellow */
    --accent-hover: #fb8500;
    --border-color: #1a294f;
}

body.theme-dynamic .hero-overlay {
    background: linear-gradient(to right, rgba(5,10,31,0.9) 0%, rgba(5,10,31,0.5) 100%);
}
html[lang="en"] body.theme-dynamic .hero-overlay {
    background: linear-gradient(to left, rgba(5,10,31,0.9) 0%, rgba(5,10,31,0.5) 100%);
}

/* Diagonal cuts for dynamic theme */
body.theme-dynamic .section-dark {
    position: relative;
    z-index: 1;
    background-color: transparent;
}
body.theme-dynamic .section-dark::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--surface-color);
    transform: skewY(-3deg);
    transform-origin: 0;
    z-index: -1;
}

body.theme-dynamic .equipment-card {
    border-radius: 0;
    border: 2px solid transparent;
}
body.theme-dynamic .equipment-card:hover {
    border-color: var(--accent-color);
    transform: scale(1.05);
}
body.theme-dynamic .btn-primary {
    border-radius: 0;
}
body.theme-dynamic .badge {
    border-radius: 0;
}

/* --- Theme Switcher UI Styles --- */
.theme-switcher {
    position: fixed;
    top: 150px;
    right: -250px;
    width: 250px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-right: none;
    border-radius: 8px 0 0 8px;
    z-index: 9999;
    box-shadow: -5px 5px 15px rgba(0,0,0,0.3);
    transition: right 0.3s ease;
}
html[lang="en"] .theme-switcher {
    right: auto;
    left: -250px;
    border-right: 1px solid var(--border-color);
    border-left: none;
    border-radius: 0 8px 8px 0;
    box-shadow: 5px 5px 15px rgba(0,0,0,0.3);
    transition: left 0.3s ease;
}
.theme-switcher.open {
    right: 0;
}
html[lang="en"] .theme-switcher.open {
    left: 0;
}

.theme-switcher-header {
    position: absolute;
    top: 20px;
    left: -150px;
    width: 150px;
    background-color: var(--accent-color);
    color: white;
    padding: 10px 15px;
    border-radius: 8px 0 0 8px;
    cursor: pointer;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: -2px 2px 10px rgba(0,0,0,0.2);
}
html[lang="en"] .theme-switcher-header {
    left: auto;
    right: -150px;
    border-radius: 0 8px 8px 0;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
}

.theme-switcher-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.theme-btn {
    background-color: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px;
    text-align: right;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
    font-family: inherit;
    font-weight: 600;
}
html[lang="en"] .theme-btn {
    text-align: left;
}
.theme-btn:hover {
    border-color: var(--accent-color);
}
.theme-btn.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}