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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-bottom: 30px;
    text-align: center;
}

.header h1 {
    color: #333;
    margin-bottom: 10px;
}

.header p {
    color: #666;
}

.controls {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-bottom: 30px;
    text-align: center;
}

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

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 600;
    font-size: 14px;
}

.input-group input,
.input-group select {
    width: 100%;
    max-width: 400px;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
    background: white;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: #667eea;
}

.input-group input::placeholder {
    color: #999;
}

.btn-small {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 2px 6px;
    margin-left: 8px;
    transition: transform 0.2s;
}

.btn-small:hover {
    transform: scale(1.2);
}

.btn-small:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.small-spinner {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 8px;
    vertical-align: middle;
}

.btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    transition: transform 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.loading {
    display: none;
    text-align: center;
    padding: 20px;
    background: white;
    border-radius: 10px;
    margin-bottom: 30px;
}

.loading.active {
    display: block;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

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

.results {
    display: none;
}

.results.active {
    display: block;
}

.cert-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-bottom: 20px;
    border-left: 5px solid #667eea;
}

.cert-card h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 20px;
}

.cert-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.info-item {
    padding: 10px;
    background: #f8f9fa;
    border-radius: 5px;
}

.info-label {
    font-weight: bold;
    color: #667eea;
    font-size: 12px;
    text-transform: uppercase;
    margin-bottom: 5px;
}

.info-value {
    color: #333;
    word-break: break-all;
}

.status-enabled {
    color: #28a745;
    font-weight: bold;
}

.status-disabled {
    color: #dc3545;
    font-weight: bold;
}

.expiring-soon {
    background: #fff3cd;
    border-left-color: #ffc107;
}

.error {
    background: #f8d7da;
    color: #721c24;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: none;
}

.error.active {
    display: block;
}

.no-results {
    background: white;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    color: #666;
}