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

html {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    height: 100vh;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 0;
}

.container {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 400px;
}

h1 {
    color: #333;
    margin-bottom: 30px;
    font-size: 28px;
}

.status-display {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    border-left: 4px solid #667eea;
}

.status-text {
    font-size: 18px;
    color: #555;
    margin-bottom: 10px;
}

.status-value {
    font-size: 24px;
    font-weight: bold;
    color: #667eea;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 10px;
    display: none;
}

.progress-bar.active {
    display: block;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    width: 0%;
    transition: width 0.2s ease;
}

.button {
    display: inline-block;
    padding: 15px 40px;
    font-size: 18px;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    margin-top: 20px;
    width: 100%;
}

.button.open {
    background: linear-gradient(135deg, #1abc9c 0%, #16a085 100%);
}

.button.open:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(26, 188, 156, 0.3);
}

.button.close {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
}

.button.close:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(231, 76, 60, 0.3);
}

.button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.info-text {
    font-size: 12px;
    color: #999;
    margin-top: 15px;
}