:root {
    --bg-body: #0f1115;
    --bg-card: #181b21;
    --bg-card-hover: #1f2229;
    --text-main: #e0e6ed;
    --text-muted: #949a9e;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #8b5cf6;
    --border: #2d333b;
    --radius: 8px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.16);
}

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

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

ul {
    list-style: none;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }
.grid { display: grid; }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.hidden { display: none; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-main);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.4rem;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 0.6rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-main);
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

/* Header */
header {
    background: rgba(15, 17, 21, 0.95);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-item {
    font-weight: 500;
    color: var(--text-muted);
}

.nav-item:hover, .nav-item.active {
    color: white;
}

/* Hero */
.hero {
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #949a9e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: var(--shadow);
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 1rem;
    background: #25282e;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.card-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin: 1rem 0;
}

/* Footer */
footer {
    margin-top: auto;
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-muted);
}

/* Alerts */
.alert {
    padding: 0.8rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    background: #2d333b;
}

.alert-success { background: rgba(16, 185, 129, 0.1); color: #10b981; border: 1px solid #10b981; }
.alert-error { background: rgba(239, 68, 68, 0.1); color: #ef4444; border: 1px solid #ef4444; }

/* Responsive */
@media (max-width: 768px) {
    .grid-cols-3 { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2rem; }
}