:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --gray: #64748b;
    --light: #f8fafc;
    --white: #ffffff;
    --border: #e2e8f0;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--dark);
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    color: var(--gray);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(99, 102, 241, 0.3);
}

/* Container principal */
.container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Hero Section */
.hero {
    text-align: center;
    color: var(--white);
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Tabs */
.tabs-container {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin-bottom: 2rem;
}

.tabs {
    display: flex;
    background: var(--light);
    border-bottom: 2px solid var(--border);
}

.tab {
    flex: 1;
    padding: 1.2rem 2rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: var(--gray);
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.tab:hover {
    background: rgba(99, 102, 241, 0.05);
    color: var(--primary);
}

.tab.active {
    color: var(--primary);
    background: var(--white);
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
}

.tab-content {
    display: none;
    padding: 2rem;
    animation: fadeIn 0.3s ease-in;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Formulaire */
.search-form {
    display: grid;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
}

.form-group label i {
    color: var(--primary);
    margin-right: 6px;
}

.form-control {
    width: 100%;
    padding: 0.9rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-control::placeholder {
    color: #94a3b8;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.input-icon input {
    padding-left: 2.8rem;
}

.helper-text {
    font-size: 0.85rem;
    color: var(--gray);
    margin-top: 0.4rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Chips pour les tags */
.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

.chip-remove {
    cursor: pointer;
    margin-left: 4px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.chip-remove:hover {
    opacity: 1;
}

/* Boutons */
.btn-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.9rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

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

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
}

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

.btn-warning:hover {
    background: #d97706;
    transform: translateY(-2px);
}

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

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* Profils sauvegardés */
.saved-profiles {
    display: grid;
    gap: 1rem;
    margin-top: 1.5rem;
}

.profile-card {
    background: var(--light);
    padding: 1.2rem;
    border-radius: 8px;
    border: 2px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
}

.profile-card:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
}

.profile-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 0.8rem;
}

.profile-name {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--dark);
}

.profile-actions {
    display: flex;
    gap: 0.5rem;
}

.profile-info {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    font-size: 0.85rem;
    color: var(--gray);
}

.profile-info-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Stats cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    padding: 1.8rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.stat-icon.primary {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    color: var(--primary);
}

.stat-icon.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.stat-icon.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.3rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--gray);
    font-weight: 500;
}

.stat-change {
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.positive {
    color: var(--success);
}

/* Résultats */
.results-container {
    display: grid;
    gap: 1.5rem;
}

.result-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 5px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
}

.result-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
}

.result-header {
    padding: 1.8rem;
    border-bottom: 2px solid var(--light);
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 1rem;
}

.result-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.result-badges {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.badge {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
}

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

.badge-warning {
    background: var(--warning);
    color: var(--white);
}

.result-meta {
    padding: 1.5rem 1.8rem;
    background: var(--light);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.meta-label {
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-value {
    font-weight: 600;
    color: var(--dark);
    font-size: 1rem;
}

.result-body {
    padding: 1.8rem;
}

.cpv-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.cpv-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    padding: 0.4rem 0.9rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
}

.result-description {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.result-footer {
    padding: 1.2rem 1.8rem;
    background: var(--light);
    border-top: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.result-link:hover {
    color: var(--primary-dark);
    gap: 12px;
}

/* Loading */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.loading-content {
    background: var(--white);
    padding: 3rem;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid var(--light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    font-size: 1.1rem;
    color: var(--dark);
    font-weight: 600;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(50px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 2rem;
}

/* Toast notifications */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toast {
    background: var(--white);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 300px;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

.toast-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.toast.success .toast-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.toast.error .toast-icon {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.toast.info .toast-icon {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.toast.warning .toast-icon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.2rem;
}

.toast-message {
    font-size: 0.9rem;
    color: var(--gray);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .result-header {
        flex-direction: column;
    }
    
    .result-badges {
        width: 100%;
    }
    
    .result-meta {
        grid-template-columns: 1fr;
    }
    
    .toast {
        min-width: auto;
        width: calc(100vw - 2rem);
    }
}

/* Scrollbar personnalisée */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gray);
    border-radius: 5px;
}

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