* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--surface-app);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--space-xl);
}

.container {
    background-color: var(--surface-main);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    width: 100%;
    max-width: 500px;
    padding: var(--space-2xl);
    border: 1px solid var(--border-subtle);
}

.header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}
.header i {
    color: var(--color-primary-base);
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-md);
}
.header h1 {
    font-size: 24px;
    font-weight: 700;
}
.header p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: var(--space-xs);
}

.form-group {
    margin-bottom: var(--space-lg);
}
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-secondary-base);
}
.form-group input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    transition: all 0.2s ease;
}
.form-group input:focus {
    outline: none;
    border-color: var(--color-primary-base);
    box-shadow: var(--state-focus-ring);
}

.btn-primary {
    width: 100%;
    background-color: var(--color-primary-base);
    color: white;
    border: none;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-sm);
    transition: background-color 0.2s;
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
}
.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Progress bar UI */
.progress-container {
    display: none;
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-subtle);
}
.progress-container.active { display: block; }

.progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background-color: var(--border-subtle);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    background-color: var(--color-primary-base);
    width: 0%;
    transition: width 0.3s ease;
}

.status-message {
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
    margin-top: var(--space-md);
}

.alert {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: 14px;
    margin-bottom: var(--space-lg);
    display: none;
}
.alert.error {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
    display: block;
}
.alert.success {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
    display: block;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.lucide-spin {
    animation: spin 2s linear infinite;
}