:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --accent-color: #0f172a;
    --background-light: #f8fafc;
    --text-main: #334155;
    --text-light: #64748b;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --success: #10b981;
    --danger: #ef4444;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--background-light);
    color: var(--text-main);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

/* Header */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify_content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links a {
    margin-left: 1.5rem;
    color: var(--text-main);
    font-weight: 500;
}

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

/* Hero Section */
.hero {
    background: var(--primary-color);
    color: var(--white);
    padding: 4rem 1rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.search-box {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.search-input {
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 0.5rem;
    width: 300px;
    font-size: 1rem;
    outline: none;
}

.search-btn {
    padding: 0.75rem 1.5rem;
    background: var(--accent-color);
    color: var(--white);
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
}

.search-btn:hover {
    background: #000;
}

/* Cards & Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
    transition: transform 0.2s;
}

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

.card h3 {
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.card-meta {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Admin Login */
.login-wrapper {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.25rem;
    cursor: pointer;
    width: 100%;
    font-weight: 600;
}

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

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