/* Variables CSS */
:root {
    --primary-color: #6366f1;
    --primary-hover: #5855eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border-color: #334155;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}

/* Typographie */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Liens */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-hover);
}

/* Boutons */
.btn {
    border-radius: 12px;
    font-weight: 600;
    padding: 12px 24px;
    border: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-outline-secondary {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
}

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

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Navigation */
.navbar {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary) !important;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color) !important;
    background: rgba(99, 102, 241, 0.1);
}

/* Logo */
.logo-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    position: relative;
    width: 32px;
    height: 32px;
}

.logo-triangle {
    position: absolute;
    width: 0;
    height: 0;
    transition: all 0.3s ease;
}

.logo-triangle-1 {
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 14px solid var(--primary-color);
    top: 2px;
    left: 8px;
}

.logo-triangle-2 {
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 11px solid var(--primary-color);
    top: 8px;
    left: 4px;
    transform: rotate(-30deg);
}

.logo-triangle-3 {
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 11px solid var(--primary-color);
    top: 8px;
    right: 4px;
    transform: rotate(30deg);
}

.logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

/* Dropdown utilisateur responsive */
.user-dropdown {
    position: relative;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-width: 0;
    flex-shrink: 0;
}

.user-info:hover {
    background: rgba(30, 41, 59, 0.8);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.user-details {
    display: flex;
    flex-direction: column;
    min-width: 0;
    flex: 1;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.user-role.admin {
    color: var(--warning-color);
}

.dropdown-chevron {
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.user-info[aria-expanded="true"] .dropdown-chevron {
    transform: rotate(180deg);
}

/* Dropdown menu responsive */
.user-dropdown .dropdown-menu {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    min-width: 280px;
    max-width: 320px;
    width: max-content;
}

.user-dropdown .dropdown-header {
    padding: 0.75rem 1rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: none;
    margin-bottom: 0.25rem;
}

.user-dropdown .dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 0;
}

.user-dropdown .dropdown-item:hover,
.user-dropdown .dropdown-item:focus {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    transform: translateX(4px);
}

.user-dropdown .dropdown-item i {
    font-size: 1rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.user-dropdown .dropdown-item.text-danger:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.user-dropdown .dropdown-divider {
    border-color: var(--border-color);
    margin: 0.5rem 0;
    opacity: 0.3;
}

/* Stats utilisateur dans le dropdown */
.user-stats {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    background: rgba(99, 102, 241, 0.05);
    margin: 0.5rem 1rem;
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.user-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
}

.user-stat-number {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.user-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 0.25rem;
}

/* Forms */
.form-control {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    padding: 12px 16px;
    transition: all 0.3s ease;
}

.form-control:focus {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}

.form-label {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Alerts */
.alert {
    border-radius: 12px;
    border: none;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Utility classes */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-effect {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive - Tablet */
@media (max-width: 992px) {
    .user-dropdown .dropdown-menu {
        min-width: 260px;
        max-width: 300px;
    }
    
    .user-name {
        max-width: 100px;
    }
    
    .navbar-brand {
        font-size: 1.3rem;
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
    }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    .btn-lg {
        padding: 14px 24px;
        font-size: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .logo-icon {
        width: 24px;
        height: 24px;
    }
    
    .logo-triangle-1 {
        border-left: 6px solid transparent;
        border-right: 6px solid transparent;
        border-bottom: 10px solid var(--primary-color);
        top: 1px;
        left: 6px;
    }
    
    .logo-triangle-2 {
        border-left: 4px solid transparent;
        border-right: 4px solid transparent;
        border-bottom: 8px solid var(--success-color);
        top: 6px;
        left: 3px;
    }
    
    .logo-triangle-3 {
        border-left: 4px solid transparent;
        border-right: 4px solid transparent;
        border-bottom: 8px solid var(--warning-color);
        top: 6px;
        right: 3px;
    }
    
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    /* Dropdown responsive sur mobile */
    .user-info {
        gap: 0.5rem;
        padding: 0.375rem 0.5rem;
    }
    
    .user-avatar {
        width: 28px;
        height: 28px;
    }
    
    .user-details {
        display: none;
    }
    
    .user-dropdown .dropdown-menu {
        position: fixed !important;
        top: auto !important;
        left: 1rem !important;
        right: 1rem !important;
        bottom: 1rem !important;
        transform: none !important;
        min-width: auto;
        max-width: none;
        width: auto;
        max-height: 60vh;
        overflow-y: auto;
        z-index: 1055;
    }
    
    .user-dropdown .dropdown-menu.show {
        animation: slideUpMobile 0.3s ease;
    }
    
    .user-stats {
        margin: 0.5rem 0.75rem;
        padding: 0.75rem;
    }
    
    .user-stat-number {
        font-size: 1.1rem;
    }
    
    .dropdown-chevron {
        font-size: 1rem;
    }
}

/* Animation pour le dropdown mobile */
@keyframes slideUpMobile {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive - Petits mobiles */
@media (max-width: 576px) {
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .btn-lg {
        padding: 12px 20px;
    }
    
    .navbar-brand .logo-text {
        font-size: 1rem;
    }
    
    .user-info {
        padding: 0.25rem 0.375rem;
    }
    
    .user-avatar {
        width: 24px;
        height: 24px;
    }
    
    .user-dropdown .dropdown-menu {
        left: 0.5rem !important;
        right: 0.5rem !important;
        bottom: 0.5rem !important;
    }
    
    .user-dropdown .dropdown-item {
        padding: 0.875rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .user-dropdown .dropdown-header {
        padding: 0.5rem 0.75rem 0.25rem;
        font-size: 0.7rem;
    }
}

/* Responsive - Navigation collapse */
@media (max-width: 991px) {
    .navbar-collapse {
        background: var(--bg-secondary);
        border-radius: 12px;
        margin-top: 1rem;
        padding: 1rem;
        border: 1px solid var(--border-color);
    }
    
    .navbar-nav {
        margin-bottom: 1rem;
    }
    
    .nav-link {
        padding: 0.75rem 1rem !important;
        margin-bottom: 0.25rem;
        border-radius: 8px;
    }
    
    .d-flex.gap-2 {
        flex-direction: column;
        gap: 0.5rem !important;
    }
    
    .d-flex.gap-2 > * {
        width: 100%;
    }
}