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

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #1f2937;
    --gray: #6b7280;
    --light: #f3f4f6;
    --white: #ffffff;
    --border: #e5e7eb;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 4rem 0;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.hero .subtitle {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Search Form */
.search-form {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    color: var(--dark);
}

.search-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.search-tabs .tab {
    flex: 1;
    text-align: center;
    cursor: pointer;
}

.search-tabs input[type="radio"] {
    display: none;
}

.search-tabs .tab span {
    display: block;
    padding: 0.75rem;
    background: var(--light);
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
}

.search-tabs .tab.active span,
.search-tabs input:checked + span {
    background: var(--primary);
    color: var(--white);
}

.search-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.search-fields .field {
    position: relative;
}

.search-fields input,
.search-fields select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}

.search-fields input:focus,
.search-fields select:focus {
    outline: none;
    border-color: var(--primary);
}

.btn-search {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
    width: 100%;
}

.btn-search:hover {
    background: var(--primary-dark);
}

.advanced-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.advanced-filters input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}

/* Results Section */
.results {
    padding: 3rem 0;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.results-header h2 {
    font-size: 1.8rem;
}

.btn-deposer {
    background: var(--secondary);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-deposer:hover {
    background: #059669;
}

/* Annonces Grid */
.annonces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.annonce-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.annonce-card a {
    text-decoration: none;
    color: inherit;
}

.annonce-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.annonce-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.badge-transaction {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--primary);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.annonce-content {
    padding: 1.5rem;
}

.annonce-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.annonce-location {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.annonce-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

.annonce-details {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--gray);
}

.no-results {
    text-align: center;
    padding: 3rem;
    font-size: 1.2rem;
    color: var(--gray);
}

/* Footer */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    text-align: center;
}

.footer-content p {
    margin-bottom: 0.5rem;
}

/* Flash Messages */
.flash-message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.flash-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #34d399;
}

.flash-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #f87171;
}

.flash-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #60a5fa;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .search-fields {
        grid-template-columns: 1fr;
    }
    
    .results-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .annonces-grid {
        grid-template-columns: 1fr;
    }
    
    nav ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
}