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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #c2c2c2 0%, #454545 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #2e3ddc 100%);
    color: white;
    padding: 40px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 600;
}

.subtitle {
    font-size: 1.1em;
    opacity: 0.9;
}

/* User Menu Styles */
.user-menu {
    position: relative;
}

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.95em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-menu-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.dropdown-arrow {
    font-size: 0.7em;
    transition: transform 0.3s ease;
}

.user-menu-btn:hover .dropdown-arrow {
    transform: translateY(2px);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.logout-btn {
    width: 100%;
    padding: 12px 16px;
    background: white;
    color: #dc3545;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 0.95em;
    font-weight: 500;
    border-radius: 8px;
    transition: background-color 0.2s ease;
}

.logout-btn:hover {
    background-color: #f8f9fa;
}

main {
    padding: 40px;
    min-height: 800px;
}

.table-container {
    overflow-x: auto;
    margin-bottom: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

thead {
    background: #f8f9fa;
}

th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    color: #495057;
    border-bottom: 2px solid #dee2e6;
    font-size: 0.95em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    padding: 16px;
    border-bottom: 1px solid #dee2e6;
    color: #495057;
}

tbody tr {
    transition: background-color 0.2s ease;
}

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

.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 600;
}

.status-badge.completed {
    background-color: #d4edda;
    color: #155724;
}

.status-badge.not-supported {
    background-color: #ffe0e0;
    color: #c42e2e;
    border: 1px solid #ffb3b3;
}

.status-badge.processing {
    background-color: #fff3cd;
    color: #856404;
}

.result-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.result-link:hover {
    color: #272ddc;
    text-decoration: underline;
}

.upload-section {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.upload-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #667eea 0%, #3338d8 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 20px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.upload-btn:active {
    transform: translateY(0);
}

.plus-icon {
    font-size: 1.5em;
    font-weight: bold;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 25%;
}

/* Processing Animation */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    border-top-color: #667eea;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.processing-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
}

.processing-text {
    color: #170485;
    font-weight: 500;
}

/* Progress Bar */
.progress-container {
    width: 100%;
    background-color: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
    height: 8px;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #a2efc4 0%, #67f46e 100%);
    width: 0%;
    transition: width 0.3s ease;
    animation: progress 10s linear forwards;
}

@keyframes progress {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }
    
    main {
        padding: 20px;
    }
    
    th, td {
        padding: 12px 8px;
        font-size: 0.9em;
    }
    
    .upload-btn {
        padding: 14px 24px;
        font-size: 1em;
    }
}

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

.modal-content {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 90%;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-content h2 {
    color: #667eea;
    margin-bottom: 10px;
    text-align: center;
}

.login-subtitle {
    text-align: center;
    color: #6c757d;
    margin-bottom: 30px;
    font-size: 0.95em;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #495057;
    font-weight: 500;
    font-size: 0.95em;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #3338d8 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.login-btn:active {
    transform: translateY(0);
}

.error-message {
    display: none;
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 15px;
    font-size: 0.9em;
    border: 1px solid #f5c6cb;
}