/* ===== DARK THEME OVERRIDES ===== */
[data-theme="dark"] {
    /* Couleurs background Dark Theme */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-dark: #0d1117;
    --bg-card: #161b22;
    
    /* Couleurs texte Dark Theme */
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --text-light: #0d1117;
    
    /* Couleurs border Dark Theme */
    --border-color: #30363d;
    --border-light: #21262d;
    --border-dark: #6e7681;
    
    /* Shadows Dark Theme */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.4);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.6);
}

/* Dark Theme Specific Styles */
[data-theme="dark"] .sidebar {
    background: var(--bg-card);
    border-right-color: var(--border-color);
}

[data-theme="dark"] .nav-header {
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .social-links {
    border-top-color: var(--border-color);
}

[data-theme="dark"] .social-links a {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

[data-theme="dark"] .about-card,
[data-theme="dark"] .skill-category,
[data-theme="dark"] .contact-card,
[data-theme="dark"] .contact-form,
[data-theme="dark"] .cv-download {
    background: var(--bg-card);
    border-color: var(--border-color);
}

[data-theme="dark"] .skill-item:hover {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .upload-area {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
}

[data-theme="dark"] .upload-area:hover,
[data-theme="dark"] .upload-area.dragover {
    background: var(--bg-secondary);
}

[data-theme="dark"] .stat-item {
    background: var(--bg-card);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-group input:focus,
[data-theme="dark"] .form-group textarea:focus {
    background: var(--bg-secondary);
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(19, 151, 234, 0.2);
}

[data-theme="dark"] .tech-tag {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

[data-theme="dark"] .coming-soon .project-image {
    background: var(--bg-tertiary);
}

/* ===== THEME TRANSITION ANIMATIONS ===== */
* {
    transition: background-color var(--transition-normal),
                color var(--transition-normal),
                border-color var(--transition-normal),
                box-shadow var(--transition-normal);
}

/* ===== THEME TOGGLE ANIMATIONS ===== */
@keyframes themeToggleRotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

[data-theme="light"] .theme-toggle {
    animation: none;
}

[data-theme="dark"] .theme-toggle {
    animation: themeToggleRotate 0.6s ease-in-out;
}

/* ===== BACKGROUND ANIMATIONS ===== */
[data-theme="dark"] .floating-shapes .shape-1 {
    background: linear-gradient(45deg, #1397EA, #1e3a8a);
    opacity: 0.1;
}

[data-theme="dark"] .floating-shapes .shape-2 {
    background: linear-gradient(45deg, #7c3aed, #1e1b4b);
    opacity: 0.1;
}

[data-theme="dark"] .floating-shapes .shape-3 {
    background: linear-gradient(45deg, #059669, #064e3b);
    opacity: 0.1;
}

/* ===== HOVER EFFECTS ENHANCEMENT ===== */
[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    background: linear-gradient(90deg, var(--primary-color) 0%, transparent 100%);
    color: white;
}

[data-theme="dark"] .btn-primary:hover {
    background: var(--primary-light);
    box-shadow: 0 0 20px rgba(19, 151, 234, 0.4);
}

[data-theme="dark"] .gallery-item:hover {
    box-shadow: 0 0 30px rgba(19, 151, 234, 0.3);
}

/* ===== FORM STYLING ENHANCEMENT ===== */
[data-theme="dark"] .form-group input::placeholder,
[data-theme="dark"] .form-group textarea::placeholder {
    color: var(--text-muted);
}

/* ===== PROJECT OVERLAY ENHANCEMENT ===== */
[data-theme="dark"] .project-overlay {
    background: rgba(0, 0, 0, 0.9);
}

[data-theme="dark"] .project-link:hover {
    background: var(--primary-light);
    box-shadow: 0 0 15px rgba(19, 151, 234, 0.5);
}

/* ===== GALLERY OVERLAY ENHANCEMENT ===== */
[data-theme="dark"] .gallery-item-overlay {
    background: rgba(0, 0, 0, 0.9);
}

[data-theme="dark"] .gallery-item-btn:hover {
    background: var(--danger-color);
    box-shadow: 0 0 15px rgba(220, 53, 69, 0.5);
}

/* ===== SECTION HEADER ANIMATION ===== */
[data-theme="dark"] .section-header h2::after {
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

/* ===== CV DOWNLOAD SECTION ===== */
[data-theme="dark"] .cv-download i {
    color: #ff6b6b;
    filter: drop-shadow(0 0 10px rgba(255, 107, 107, 0.3));
}

/* ===== SOCIAL LINKS HOVER EFFECTS ===== */
[data-theme="dark"] .social-links a:hover {
    background: linear-gradient(45deg, var(--primary-color), var(--primary-light));
    box-shadow: 0 0 20px rgba(19, 151, 234, 0.4);
    transform: translateY(-3px) scale(1.1);
}

/* ===== LOADING ANIMATIONS ===== */
@keyframes themeSwitchFade {
    0% {
        opacity: 0.7;
    }
    50% {
        opacity: 0.9;
    }
    100% {
        opacity: 1;
    }
}

.theme-switching {
    animation: themeSwitchFade 0.3s ease-in-out;
}

/* ===== SCROLLBAR STYLING ===== */
[data-theme="dark"] ::-webkit-scrollbar {
    width: 8px;
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* ===== FOCUS STYLES ===== */
[data-theme="dark"] .btn:focus,
[data-theme="dark"] .nav-link:focus,
[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] .theme-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== MOBILE MENU TOGGLE ===== */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background: var(--bg-card);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.mobile-menu-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .mobile-menu-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

/* ===== IMAGE PREVIEW ENHANCEMENT ===== */
[data-theme="dark"] .upload-area.dragover {
    border-color: var(--primary-light);
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    transform: scale(1.02);
}

/* ===== ERROR STATES ===== */
.form-group .error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    display: none;
}

.form-group.has-error input,
.form-group.has-error textarea {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-group.has-error .error-message {
    display: block;
}

/* ===== SUCCESS STATES ===== */
.form-group.has-success input,
.form-group.has-success textarea {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

/* ===== LOADING STATES ===== */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== TOOLTIP STYLES ===== */
.tooltip {
    position: absolute;
    background: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    white-space: nowrap;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.tooltip.show {
    opacity: 1;
    visibility: visible;
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .theme-toggle,
    .mobile-menu-toggle,
    .sidebar,
    .social-links,
    .upload-section,
    .image-viewer {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}

/* ===== HIGH CONTRAST MODE ===== */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.8);
        --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.8);
        --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.8);
    }
    
    [data-theme="dark"] {
        --bg-primary: #000000;
        --bg-secondary: #111111;
        --bg-tertiary: #222222;
        --text-primary: #ffffff;
        --border-color: #ffffff;
    }
}