.start-shell {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right))
        max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
}

.start-card {
    width: 100%;
    max-width: 520px;
    background: var(--dxbl-body-bg, #fff);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    overflow: hidden;
}

.start-header {
    background: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
    padding: 1.25rem 1.5rem;
    text-align: center;
}

.start-header h1 {
    margin: 0;
    font-size: clamp(1.5rem, 5vw, 2rem);
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #ecf0f1;
    text-transform: uppercase;
}

.start-header .subtitle {
    margin: 0.25rem 0 0;
    font-size: 0.85rem;
    color: #95a5a6;
}

.start-body {
    padding: 1.25rem 1.25rem 1rem;
}

.start-form-layout {
    width: 100%;
}

.start-form-layout .dxbl-fl-item-caption {
    font-weight: 600;
}

.start-punch-item {
    margin-top: 0.25rem;
}

.start-punch-button {
    width: 100%;
    min-height: 3.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.start-punch-button .dxbl-btn-text {
    font-size: 1.125rem;
}

.start-actions {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    padding-top: 0.25rem;
}

.start-action-button {
    width: 100%;
    min-height: 2.75rem;
}

.start-user-hint {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dxbl-text-secondary, #555);
    padding: 0.35rem 0;
}

.start-version-item .start-version-value {
    font-size: 0.75rem;
    color: var(--dxbl-text-secondary, #666);
}

.start-status {
    background: #1a1a1a;
    color: #ccc;
    font-size: 0.8rem;
    padding: 0.65rem 1rem;
    min-height: 2.25rem;
    line-height: 1.4;
}

.start-status.error {
    color: #ff6b6b;
}

.start-status.success {
    color: #7bed9f;
}

@media (min-width: 521px) {
    .start-body {
        padding: 1.25rem 1.5rem 1rem;
    }

    .start-form-layout .dxbl-fl-item-caption {
        min-width: 7.5rem;
    }

    .start-actions {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .start-action-button {
        width: auto;
        flex: 1 1 auto;
    }
}

@media (max-width: 520px) {
    .start-shell {
        align-items: flex-start;
        padding-top: max(0.75rem, env(safe-area-inset-top));
    }

    .start-card {
        border-radius: 10px;
        box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
    }

    .start-version-item {
        display: none;
    }
}