:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #10b981;
    --secondary-hover: #059669;
    --danger-color: #ef4444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 500px;
    border: 1px solid rgba(255,255,255,0.1);
}

h1 {
    font-size: 24px;
    margin-bottom: 5px;
    text-align: center;
}

.subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 25px;
    font-size: 14px;
}

.card {
    background: rgba(0,0,0,0.2);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.card h2 {
    font-size: 16px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.input-group input {
    width: 100%;
    padding: 12px;
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 8px;
    color: white;
    font-size: 14px;
    outline: none;
    transition: border 0.3s;
}

.input-group input:focus {
    border-color: var(--primary-color);
}

.input-group small {
    display: block;
    margin-top: 6px;
    font-size: 11px;
    color: #ef4444;
}

.actions {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-direction: column;
}

.btn {
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.btn.primary {
    background-color: var(--primary-color);
    color: white;
}

.btn.primary:hover {
    background-color: var(--primary-hover);
}

.btn.secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn.secondary:hover {
    background-color: var(--secondary-hover);
}

.btn.danger {
    background-color: var(--danger-color);
    color: white;
}

.status-box {
    background: #0f172a;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #334155;
}

.status-box h3 {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

#status-text {
    font-size: 14px;
    word-break: break-all;
    color: #34d399;
}

@media (min-width: 480px) {
    .actions {
        flex-direction: row;
    }
    .btn {
        flex: 1;
    }
}