@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-blue: #0A2540;
    --secondary-blue: #1A4789;
    --accent-yellow: #FFC107;
    --accent-yellow-hover: #FFD54F;
    --text-dark: #2A3B4C;
    --text-light: #F4F7F9;
    --bg-light: #F8FAFC;
    --card-bg: rgba(255, 255, 255, 0.95);
    --transition-speed: 0.3s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4 { color: var(--primary-blue); font-weight: 700; margin-bottom: 1rem; }
a { text-decoration: none; color: inherit; transition: color var(--transition-speed); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.btn-primary {
    background-color: var(--accent-yellow);
    color: var(--primary-blue);
}
.btn-primary:hover {
    background-color: var(--accent-yellow-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 193, 7, 0.3);
}

.btn-secondary {
    background-color: var(--primary-blue);
    color: var(--text-light);
}
.btn-secondary:hover {
    background-color: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(26, 71, 137, 0.3);
}

.btn-danger {
    background-color: #DC2626;
    color: white;
}
.btn-danger:hover {
    background-color: #B91C1C;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(220, 38, 38, 0.3);
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--text-light);
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    position: relative;
}
.logo h1 { color: var(--accent-yellow); margin: 0; font-size: 2.5rem; letter-spacing: -1px; }
.logo p { font-size: 1rem; opacity: 0.9; margin: 0; }

nav ul { list-style: none; display: flex; gap: 2rem; align-items: center; }
nav a { color: var(--text-light); transition: color var(--transition-speed); font-weight: 500; }
nav a:hover { color: var(--accent-yellow); }

/* Forms & Cards */
.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    backdrop-filter: blur(10px);
    margin: 2rem auto;
    max-width: 500px;
}
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: 0.5rem; color: var(--primary-blue); }
.form-control, select, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #E2E8F0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color var(--transition-speed);
    font-family: inherit;
}
.form-control:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 3px rgba(26, 71, 137, 0.1);
}

/* Admin layout */
.admin-container { display: flex; min-height: 100vh; }
.sidebar {
    width: 250px;
    background: var(--primary-blue);
    color: white;
    padding: 2rem;
}
.sidebar .logo h2 { color: var(--accent-yellow); }
.sidebar nav ul { flex-direction: column; gap: 1rem; margin-top: 2rem; list-style: none; align-items: stretch; }
.sidebar nav a { display: block; padding: 0.5rem 0; border-bottom: 1px solid rgba(255,255,255,0.1); text-align: right; }
.sidebar nav a:hover { color: var(--accent-yellow); border-color: var(--accent-yellow); padding-right: 5px; }
.content { flex: 1; padding: 2rem; background: var(--bg-light); max-width: calc(100vw - 250px);}

/* Data Tables */
.table-responsive { overflow-x: auto; width: 100%; }
table { width: 100%; border-collapse: collapse; margin-top: 1.5rem; background: white; border-radius: 8px; overflow: hidden; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
table th, table td { padding: 1rem; text-align: left; border-bottom: 1px solid #E2E8F0; }
table th { background-color: var(--primary-blue); color: white; font-weight: 500; }
table tbody tr:hover { background-color: #F8FAFC; }

/* Grid layout for materials */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.material-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    border-top: 4px solid var(--accent-yellow);
    display: flex;
    flex-direction: column;
}
.material-card:hover {  transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
.material-card .badges { margin-bottom: 1rem; }
.material-card p { flex-grow: 1; color: #475569; margin-bottom: 1.5rem; font-size: 0.95rem; }
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    background: #E2E8F0;
    color: var(--text-dark);
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}
.badge.type { background: var(--secondary-blue); color: white; }
.badge.category { background: var(--accent-yellow); color: var(--primary-blue); font-weight: 600; }

/* Utilities */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.alert { padding: 1rem; border-radius: 8px; margin-bottom: 1rem; }
.alert-success { background: #D1FAE5; color: #065F46; border: 1px solid #A7F3D0; }
.alert-error { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--primary-blue);
    color: white;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
}
.cookie-banner p { margin: 0; font-size: 0.95rem; }
.cookie-buttons { display: flex; gap: 1rem; align-items: center; }

/* Responsive */
@media (max-width: 768px) {
    .admin-container { flex-direction: column; }
    .sidebar { width: 100%; padding: 1rem; }
    .content { max-width: 100vw; }
    header { flex-direction: column; text-align: center; gap: 1rem; }
    header nav ul { flex-wrap: wrap; justify-content: center; }
    
    .cookie-banner { flex-direction: column; text-align: center; gap: 1rem; }
    .cookie-buttons { width: 100%; justify-content: center; }
}