/**
 * MP Vision - Composants Réutilisables
 * Buttons, Cards, Sections, Forms, etc.
 */

/* ===================================
   1. BUTTONS
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--text-base);
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--text-sm);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--text-lg);
}

/* Primary Button */
.btn-primary {
    background: var(--gradient-primary);
    background-size: 200% auto;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-position: right center;
    transform: scale(1.05);
    box-shadow: var(--glow-primary);
    color: var(--text-primary);
}

.btn-primary:active {
    transform: scale(0.98);
}

/* Secondary Button (Outline) */
.btn-secondary {
    background: transparent;
    color: var(--primary-light);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--text-primary);
    box-shadow: var(--glow-primary);
}

/* Accent Button */
.btn-accent {
    background: var(--gradient-accent);
    background-size: 200% auto;
    color: var(--dark-bg);
    box-shadow: var(--shadow-md);
    font-weight: 700;
}

.btn-accent:hover {
    background-position: right center;
    transform: scale(1.05);
    box-shadow: var(--glow-accent);
    color: var(--dark-bg);
}

/* Ghost Button */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

.btn-ghost:hover {
    background: var(--glass-bg);
    color: var(--text-primary);
    border-color: var(--primary);
}

/* Button Disabled State */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===================================
   2. CARDS
   =================================== */

.card {
    background: var(--dark-bg-3);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

/* Default Card */
.card-default {
    background: var(--dark-bg-3);
    border: 1px solid var(--border);
}

/* Glass Card */
.card-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
}

/* Hover Card */
.card-hover {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl), var(--glow-primary);
    border-color: var(--primary);
}

/* Gradient Border Card */
.card-gradient {
    position: relative;
    background: var(--dark-bg-3);
    border: none;
}

.card-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 2px;
    background: var(--gradient-primary);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

/* Card Components */
.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    font-size: var(--text-2xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: var(--text-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.card-description {
    color: var(--text-secondary);
    font-size: var(--text-base);
    margin-bottom: var(--spacing-md);
}

.card-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-light);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: all var(--transition-base);
}

.card-link:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.card-link i {
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-base);
}

.card-link:hover i {
    transform: translateX(3px);
}

/* ===================================
   3. SECTIONS
   =================================== */

.section-wrapper {
    position: relative;
    padding: var(--spacing-2xl) 0;
}

@media (max-width: 768px) {
    .section-wrapper {
        padding: var(--spacing-2xl) 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--primary-light);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--text-4xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

@media (max-width: 768px) {
    .section-title {
        font-size: var(--text-3xl);
    }
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

.section-content {
    position: relative;
}

/* ===================================
   4. FORMS
   =================================== */

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    font-size: var(--text-sm);
}

.form-label.required::after {
    content: ' *';
    color: #EF4444;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text-primary);
    background-color: var(--dark-bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239CA3AF' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.form-check-input {
    width: 20px;
    height: 20px;
    margin-right: var(--spacing-sm);
    cursor: pointer;
}

.form-check-label {
    color: var(--text-secondary);
    font-size: var(--text-base);
    cursor: pointer;
}

.form-error {
    color: #EF4444;
    font-size: var(--text-sm);
    margin-top: var(--spacing-xs);
    display: none;
}

.form-control.is-invalid {
    border-color: #EF4444;
}

.form-control.is-invalid ~ .form-error {
    display: block;
}

.form-control.is-valid {
    border-color: #10B981;
}

/* ===================================
   5. HERO SECTIONS
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-hero);
    padding: var(--spacing-3xl) 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--text-6xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--text-4xl);
    }
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Particles Container */
#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

/* ===================================
   6. GRID LAYOUTS
   =================================== */

.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   7. STATISTICS / COUNTERS
   =================================== */

.stat-item {
    text-align: center;
    padding: var(--spacing-xl);
}

.stat-number {
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--text-lg);
    color: var(--text-secondary);
}

/* ===================================
   8. TIMELINE
   =================================== */

.timeline {
    position: relative;
    padding: var(--spacing-xl) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-2xl);
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

@media (max-width: 768px) {
    .timeline-item,
    .timeline-item:nth-child(even) {
        flex-direction: row;
        padding-left: 60px;
    }
}

.timeline-content {
    flex: 1;
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    margin: 0 var(--spacing-xl);
}

@media (max-width: 768px) {
    .timeline-content {
        margin: 0 0 0 var(--spacing-md);
    }
}

.timeline-marker {
    position: absolute;
    left: 50%;
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: var(--glow-primary);
}

@media (max-width: 768px) {
    .timeline-marker {
        left: 20px;
    }
}

/* ===================================
   9. BADGES & TAGS
   =================================== */

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: var(--primary);
    color: var(--text-primary);
}

.badge-secondary {
    background: var(--secondary);
    color: var(--text-primary);
}

.badge-accent {
    background: var(--accent);
    color: var(--dark-bg);
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

/* ===================================
   10. ALERTS & MESSAGES
   =================================== */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: #10B981;
    color: #6EE7B7;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: #EF4444;
    color: #FCA5A5;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--accent);
    color: var(--accent-glow);
}

.alert-info {
    background: rgba(6, 182, 212, 0.1);
    border-color: var(--secondary);
    color: var(--secondary-light);
}