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

:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --text: #1e293b;
    --text-light: #64748b;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

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

header .logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    display: block;
    object-fit: contain;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.subtitle {
    color: var(--text-light);
    font-size: 1rem;
}

.tab-navigation {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    background: var(--card-bg);
    padding: 0.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    flex-wrap: wrap;
}

.tab-btn {
    flex: 1;
    min-width: 150px;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    color: var(--text-light);
}

.tab-btn:hover {
    background: var(--bg);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
}

.tab-content {
    display: none;
}

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

.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.bento-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.bento-card h2 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--text);
}

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

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

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

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

.btn-secondary:hover {
    background: #475569;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.tier-select, .status-select {
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: white;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.tier-select:hover, .status-select:hover {
    border-color: var(--primary);
}

.tier-select:focus, .status-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.summary-row:last-child {
    border-bottom: none;
}

.table-container {
    overflow-x: auto;
    margin-top: 1rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

thead {
    background: var(--bg);
}

th {
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
}

tbody tr:hover {
    background: var(--bg);
}

.empty-state {
    text-align: center;
    color: var(--text-light);
    padding: 2rem !important;
}

.form-card {
    background: var(--bg);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.form-card h3 {
    margin-bottom: 1rem;
    color: var(--text);
}

.info-text {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.archive-item {
    background: var(--bg);
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    cursor: pointer;
    transition: all 0.2s;
}

.archive-item:hover {
    box-shadow: var(--shadow);
}

.archive-item h4 {
    margin-bottom: 0.5rem;
}

.archive-details {
    display: none;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.archive-details.show {
    display: block;
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-active {
    background: #d1fae5;
    color: #065f46;
}

.status-inactive {
    background: #fee2e2;
    color: #991b1b;
}

.hours-input,
.rate-input {
    width: 80px;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    text-align: center;
}

.hours-input:focus,
.rate-input:focus {
    outline: none;
    border-color: var(--primary);
}

.shift-header {
    text-align: center;
    font-size: 0.875rem;
}

.positive {
    color: var(--success);
    font-weight: 600;
}

.negative {
    color: var(--danger);
    font-weight: 600;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .tab-btn {
        min-width: 120px;
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .bento-grid {
        grid-template-columns: 1fr;
    }
}