:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --light-bg: #f8f9fa;
    --dark-text: #2c3e50;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.main-container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.header-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 30px;
    position: relative;
}

.header-content {
    text-align: center;
}

.header-section h1 {
    margin: 0;
    font-size: 2.5rem;
    font-weight: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.header-section p {
    margin: 10px 0 0 0;
    opacity: 0.9;
    font-size: 1.1rem;
}

.user-info {
    position: absolute;
    top: 20px;
    right: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255,255,255,0.1);
    padding: 10px 20px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
}

.user-email {
    font-size: 0.9rem;
    opacity: 0.9;
}

.logout-btn, .login-btn {
    background: var(--accent-color);
    border: none;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.login-btn {
    background: var(--success-color);
}

.logout-btn:hover {
    background: #c0392b;
    transform: translateY(-1px);
}

.login-btn:hover {
    background: #229954;
    transform: translateY(-1px);
}

.controls-section {
    padding: 30px;
    background: var(--light-bg);
}

.time-filters {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.time-filters h3 {
    color: var(--dark-text);
    margin-bottom: 20px;
    font-size: 1.2rem;
    font-weight: 600;
}

.time-options {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.time-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background: #f8f9fa;
    border-radius: 25px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.time-option:hover {
    background: var(--secondary-color);
    color: white;
    transform: translateY(-2px);
}

.time-option input[type="radio"] {
    accent-color: var(--secondary-color);
}

.search-filters {
    background: white;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.search-filters h3 {
    color: var(--dark-text);
    margin-bottom: 20px;
    font-size: 1.2rem;
    font-weight: 600;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-weight: 600;
    color: var(--dark-text);
    margin-bottom: 8px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-group input {
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.filter-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.filter-group .help-text {
    font-size: 0.8rem;
    color: #6c757d;
    margin-top: 5px;
}

.action-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-search {
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), #2980b9);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--success-color), #229954);
    color: white;
}

.btn-search:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-search:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.results-section {
    padding: 30px;
}

.loading-container {
    text-align: center;
    padding: 40px;
    display: none;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.results-table {
    display: none;
}

.table {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.table thead th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
    padding: 15px;
    border: none;
}

.table tbody td {
    padding: 12px 15px;
    vertical-align: middle;
    border-color: #e9ecef;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
}

.auth-status {
    background: rgba(39, 174, 96, 0.1);
    color: var(--success-color);
    padding: 10px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-error {
    background: rgba(231, 76, 60, 0.1);
    color: var(--accent-color);
    padding: 10px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-warning {
    background: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: center;
    justify-content: center;
}

.disabled-overlay {
    position: relative;
}

.disabled-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    z-index: 10;
}

.login-prompt {
    background: linear-gradient(135deg, var(--warning-color), #e67e22);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 20px;
}

.login-prompt h3 {
    margin: 0 0 10px 0;
    font-size: 1.3rem;
}

.login-prompt p {
    margin: 0 0 15px 0;
    opacity: 0.9;
}

.btn-login-large {
    background: white;
    color: var(--warning-color);
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-login-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

@media (max-width: 768px) {
    .user-info {
        position: static;
        justify-content: center;
        margin-top: 20px;
    }
    
    .time-options {
        justify-content: center;
    }
    
    .filters-grid {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .header-section h1 {
        font-size: 2rem;
    }
    
    .login-prompt {
        padding: 15px;
    }
    
    .btn-login-large {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}