.pg-hero {
    margin: var(--space-5) 0 var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--border-light);
}

.pg-hero h1 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: var(--space-2);
    color: var(--fg);
}

.pg-hero p {
    font-size: var(--text-lg);
    color: var(--fg-muted);
    max-width: 60ch;
}

.pg-layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.pg-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    min-width: 0;
}

.pg-fieldset {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    background: var(--bg-card);
    padding: var(--space-3);
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.pg-fieldset[hidden] {
    display: none;
}

.pg-fieldset legend {
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--fg-faint);
    padding: 0 var(--space-1);
    margin-left: calc(var(--space-1) * -1);
}

.pg-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    min-width: 0;
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--fg);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-2) var(--space-2);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-family: inherit;
    background: var(--bg);
    color: var(--fg);
    transition: border-color var(--transition-normal), color var(--transition-normal);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--fg-faint);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--fg-muted);
}

.form-group textarea {
    min-height: 96px;
    resize: vertical;
    line-height: 1.6;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-2) center;
    padding-right: var(--space-5);
}

.error-message {
    font-size: var(--text-xs);
    color: var(--color-error);
    display: none;
}

.form-group.error .error-message {
    display: block;
}

.form-group.error input,
.form-group.error textarea {
    border-color: var(--color-error);
}

.form-group-checkbox {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.pg-checkbox-title {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--fg);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.checkbox-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}

.checkbox-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 4px 0 0;
    cursor: pointer;
    accent-color: var(--fg);
    flex-shrink: 0;
}

.checkbox-item label {
    font-size: var(--text-sm);
    font-weight: var(--font-regular);
    color: var(--fg-muted);
    cursor: pointer;
    line-height: 1.5;
}

.pg-disclosure {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    margin-top: calc(var(--space-2) * -1);
}

.pg-disclosure-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    align-self: flex-start;
    min-height: 32px;
    background: none;
    border: none;
    padding: var(--space-half) 0;
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--fg-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.pg-disclosure-btn:hover {
    color: var(--accent);
}

.pg-disclosure-btn i {
    display: inline-flex;
    font-size: var(--text-base);
    transition: transform var(--transition-fast);
}

.pg-disclosure-btn[aria-expanded="true"] i {
    transform: rotate(90deg);
}

.pg-disclosure-hint {
    font-size: var(--text-xs);
    color: var(--fg-faint);
    line-height: 1.5;
}

.pg-disclosure-btn[aria-expanded="true"] + .pg-disclosure-hint {
    display: none;
}

.pg-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.pg-actions .btn-primary {
    min-height: 40px;
    padding: var(--space-1) var(--space-3);
}

.pg-actions .btn-primary:disabled {
    opacity: 0.55;
    cursor: progress;
}

.pg-btn-ghost {
    background: none;
    border: none;
    color: var(--fg-faint);
    font-family: inherit;
    font-size: var(--text-sm);
    cursor: pointer;
    padding: var(--space-1);
    transition: color var(--transition-fast);
}

.pg-btn-ghost:hover {
    color: var(--fg-muted);
}

.form-note {
    font-size: var(--text-xs);
    color: var(--fg-faint);
    margin-top: calc(var(--space-3) * -1);
}

.pg-output {
    order: -1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    background: var(--bg-card);
    padding: var(--space-3);
    min-width: 0;
}

.pg-output:not(.has-result) {
    display: none;
}

.pg-output-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
}

.pg-output-head h2 {
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--fg-faint);
    margin: 0;
}

.pg-output-tools {
    display: flex;
    gap: var(--space-half);
}

.pg-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--fg-muted);
    cursor: pointer;
    font-size: var(--text-base);
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.pg-icon-btn:hover {
    color: var(--accent);
    border-color: var(--fg-muted);
}

.pg-output-body {
    min-height: 0;
}

.pg-placeholder {
    font-size: var(--text-sm);
    color: var(--fg-faint);
    line-height: 1.7;
}

.pg-placeholder strong {
    color: var(--fg-muted);
    font-weight: var(--font-medium);
}

.pg-placeholder.is-error {
    color: var(--color-error);
}

.pg-result {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.7;
    color: var(--fg);
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
    max-height: 60vh;
    overflow-y: auto;
}

.pg-result::after {
    content: "";
    display: inline-block;
    width: 7px;
    height: 1em;
    margin-left: 2px;
    background: var(--fg-faint);
    vertical-align: text-bottom;
    animation: pg-blink 1s steps(2, start) infinite;
}

.pg-result:not(.is-streaming)::after {
    display: none;
}

@keyframes pg-blink {
    to {
        visibility: hidden;
    }
}

.pg-meta {
    font-size: var(--text-xs);
    color: var(--fg-faint);
    font-family: var(--font-mono);
    border-top: 1px solid var(--border-light);
    padding-top: var(--space-2);
}

@media (max-width: 600px) {
    .pg-hero h1 {
        font-size: var(--text-2xl);
    }

    .pg-hero p {
        font-size: var(--text-base);
    }

    .pg-fieldset,
    .pg-output {
        padding: var(--space-3);
    }
}

.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}