:root {
    --primary: #fbbf24; /* Amber 400 */
    --primary-hover: #f59e0b; /* Amber 500 */
    --accent: #3b82f6; /* Blue 500 */
    --bg-dark: #0f172a; /* Slate 900 */
    --bg-card: rgba(30, 41, 59, 0.7); /* Slate 800 with opacity */
    --text-main: #f8fafc; /* Slate 50 */
    --text-muted: #94a3b8; /* Slate 400 */
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --card-radius: 1.5rem;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0, transparent 50%),
        radial-gradient(at 50% 0%, rgba(251, 191, 36, 0.1) 0, transparent 50%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.glass {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: var(--card-radius);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 2rem;
    transition: 0.3s;
    font-weight: 500;
}

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

/* Dashboard Buttons Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.btn-card {
    padding: 3rem 2rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-main);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.btn-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px -20px rgba(0,0,0,0.5);
}

.btn-card i {
    font-size: 3rem;
    color: var(--primary);
}

.btn-card span {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Forms */
.form-card {
    max-width: 600px;
    margin: 0 auto;
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

input, select, textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    color: var(--text-main);
    font-size: 1rem;
    transition: 0.3s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
}

select option {
    background-color: var(--bg-dark);
    color: var(--text-main);
}

.btn-submit {
    background: var(--primary);
    color: var(--bg-dark);
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    transition: 0.3s;
    margin-top: 1rem;
}

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

/* Login Page specific */
.login-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 3rem;
}

/* Tables / Lists */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 0.75rem;
}

.data-table th {
    text-align: left;
    padding: 0.75rem 1.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.data-table td {
    padding: 1.25rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    transition: 0.3s;
}

.data-table tr td:first-child {
    border-left: 1px solid var(--glass-border);
    border-radius: 1rem 0 0 1rem;
}

.data-table tr td:last-child {
    border-right: 1px solid var(--glass-border);
    border-radius: 0 1rem 1rem 0;
}

.data-table tr:hover td {
    background: rgba(251, 191, 36, 0.05);
    border-color: rgba(251, 191, 36, 0.3);
}

.list-item {
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.check-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-muted);
    padding: 0.5rem;
    transition: 0.3s;
}

.check-label:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
}

.check-label input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 480px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}