:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --background: #f8fafc;
    --surface: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header & Nav */
header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 70px;
    display: flex;
    align-items: center;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
    text-decoration: none;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--accent);
}

.btn-access {
    background: var(--primary);
    color: white !important;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
}

/* Hero Section */
.hero {
    background: var(--primary);
    padding: 4rem 0 6rem;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero h1 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

.hero p {
    color: #94a3b8;
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Filter Bar */
.filter-bar {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: -3rem;
    position: relative;
    z-index: 10;
    border: 1px solid var(--border);
}

.filter-group {
    flex: 1;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input, select {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    font-family: inherit;
    font-size: 0.95rem;
    background: #f8fafc;
    transition: border-color 0.2s, background 0.2s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    background: white;
}

.btn-search {
    background: var(--accent);
    color: white;
    border: none;
    padding: 0 2.5rem;
    height: 50px;
    border-radius: 10px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s;
    align-self: flex-end;
}

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

/* Property Grid */
.main-content {
    padding: 6rem 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.section-header span {
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 0.5rem;
}

.property-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
}

/* Property Card */
.card {
    background: var(--surface);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

.card-image {
    height: 240px;
    position: relative;
    overflow: hidden;
}

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

.badge-container {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: flex;
    gap: 0.5rem;
}

.badge {
    background: var(--accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.card-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.address {
    font-size: 0.9rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 1rem 0;
    border-top: 1px solid #f1f5f9;
    border-bottom: 1px solid #f1f5f9;
    margin-bottom: 1.5rem;
}

.feature-item {
    text-align: center;
}

.feature-label {
    display: block;
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
}

.feature-value {
    font-weight: 700;
    color: var(--primary);
}

.btn-detail {
    width: 100%;
    padding: 0.8rem;
    background: #f1f5f9;
    border: none;
    border-radius: 10px;
    color: var(--primary);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

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

/* Animations & Skeletons */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

.skeleton {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    background: #e2e8f0;
    border-radius: 18px;
    height: 400px;
}

/* Empty State */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 5rem 0;
}

.empty-state svg {
    width: 64px;
    height: 64px;
    color: #cbd5e1;
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 2rem; }
    .filter-bar { padding: 1rem; flex-direction: column; gap: 1rem; }
    .btn-search { width: 100%; align-self: stretch; }
    .property-grid { grid-template-columns: 1fr; }
}