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

/* Environment Banner */
.env-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 12px;
    text-align: center;
    font-weight: bold;
    font-size: 0.9rem;
    z-index: 9999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.env-banner[data-env="development"] {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.env-banner[data-env="staging"] {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.env-banner[data-env="production"] {
    display: none;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #ffffff;
    min-height: 100vh;
    padding: 20px;
    padding-top: 60px; /* Space for env banner */
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 20px;
}

h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 1.2rem;
    color: #a0aec0;
    font-weight: 300;
}

.env-indicator {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #a0aec0;
}

.env-indicator strong {
    color: #f59e0b;
    text-transform: uppercase;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #ffffff;
}

.card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #a0aec0;
}

#status-display {
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    border-left: 4px solid #48bb78;
}

#status-display.error {
    border-left-color: #f56565;
}

#status-display p {
    margin: 8px 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.checklist {
    list-style: none;
}

.checklist li {
    padding: 12px;
    margin: 8px 0;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    transition: background 0.2s;
}

.checklist li:hover {
    background: rgba(255, 255, 255, 0.08);
}

.checklist label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 1.1rem;
}

.checklist input[type="checkbox"] {
    margin-right: 12px;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.button-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.btn {
    display: block;
    padding: 15px 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.card.info {
    background: rgba(102, 126, 234, 0.1);
    border-color: rgba(102, 126, 234, 0.3);
}

.card.info p {
    margin: 10px 0;
    font-size: 1rem;
}

.card.info strong {
    color: #667eea;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    color: #a0aec0;
    font-size: 0.9rem;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .card {
        padding: 20px;
    }
    
    .button-grid {
        grid-template-columns: 1fr;
    }
}