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

:root {
    --gold: #6B5B47;
    --light-gold: #D4AF37;
    --bg: #ffffff;
    --text: #1a1a1a;
    --border: #e5e5e5;
    --error: #ef4444;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg);
    color: var(--text);
}

.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Login Screen */
.login-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #fafafa;
}

.logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo h1 {
    font-size: 2.5rem;
    color: var(--gold);
    font-family: serif;
    margin-bottom: 0.5rem;
}

.logo p {
    color: #666;
    font-size: 1rem;
}

#login-form {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

#login-form input {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 1rem;
}

#login-form button {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--gold);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

#login-form button:hover {
    background-color: #5a4a38;
}

.error {
    color: var(--error);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    text-align: center;
}

/* Dashboard */
.header {
    background-color: var(--gold);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 1.5rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.tabs {
    background-color: #f9f9f9;
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
}

.tab {
    padding: 1rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: #666;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab:hover {
    color: var(--gold);
}

.tab.active {
    color: var(--gold);
    border-bottom-color: var(--gold);
}

.content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.tab-header h2 {
    font-size: 1.75rem;
    color: var(--gold);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--gold);
    margin-bottom: 0.5rem;
}

.stat-detail {
    font-size: 0.875rem;
    color: #666;
}

/* Tables */
.table-container {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background-color: #f9f9f9;
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--gold);
    border-bottom: 2px solid var(--border);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

tbody tr:hover {
    background-color: #fafafa;
}

/* Buttons */
.btn-primary {
    padding: 0.625rem 1.25rem;
    background-color: var(--gold);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: #5a4a38;
}

.btn-secondary {
    padding: 0.625rem 1.25rem;
    background-color: white;
    color: var(--gold);
    border: 1px solid var(--gold);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.btn-secondary:hover {
    background-color: var(--gold);
    color: white;
}

.btn-danger {
    padding: 0.5rem 1rem;
    background-color: var(--error);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.close {
    float: right;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    color: #666;
}

.close:hover {
    color: var(--gold);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #666;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 1rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .tabs {
        padding: 0 1rem;
    }
    
    .content {
        padding: 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    table {
        font-size: 0.875rem;
    }
    
    th, td {
        padding: 0.75rem 0.5rem;
    }
}