.customparam-page {
    display: grid;
    gap: var(--tp-space-4);
    --cp-accent-ink: var(--tp-color-brand-900);
    --cp-accent-soft: var(--tp-color-info-bg);
    --cp-accent-soft-2: color-mix(in srgb, var(--tp-color-brand-050) 72%, white);
    --cp-accent-border: var(--tp-color-brand-300);
    --cp-border: var(--tp-color-border-soft);
}

.customparam-page h1,
.customparam-page h2,
.customparam-page h3 {
    letter-spacing: -0.01em;
}

/* ── Hero ── */

.customparam-hero {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--tp-color-border-soft);
    border-radius: var(--tp-ui-radius-hero);
    background: var(--tp-color-surface);
    padding: 22px 22px 18px;
}

.customparam-hero::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--tp-color-brand-800) 0%, var(--tp-color-sage-700) 55%, var(--tp-color-brand-500) 100%);
}

.customparam-hero > * {
    position: relative;
    z-index: 1;
}

.customparam-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0 0 8px;
    color: var(--tp-color-text-muted);
    font-family: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: var(--tp-font-label);
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.customparam-hero h1 {
    margin: 0;
    font-size: var(--tp-heading-lg);
    line-height: 1.05;
    color: var(--cp-accent-ink);
}

.customparam-subtitle {
    margin: 10px 0 0;
    max-width: 900px;
    color: var(--tp-color-text-secondary);
    font-size: 1.03rem;
    line-height: 1.52;
}

.customparam-chip-group {
    margin-top: 16px;
}

.customparam-chip-group .tp-chip {
    gap: 6px;
}

.customparam-chip-id {
    font-family: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
    font-weight: 600;
    color: var(--cp-accent-ink);
}

/* ── Layout ── */

.customparam-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(300px, 0.9fr);
    gap: 18px;
    align-items: start;
}

/* ── Cards ── */

.customparam-card {
    border: 1px solid var(--tp-color-border-soft);
    border-radius: var(--tp-ui-radius-panel);
    background: var(--tp-color-surface);
    padding: 16px;
}

.customparam-card--guide {
    background: var(--tp-color-surface);
    display: grid;
    gap: 8px;
}

.customparam-card-head {
    align-items: flex-start;
    margin-bottom: 14px;
}

.customparam-card h2 {
    margin: 0;
    color: var(--cp-accent-ink);
    font-size: var(--tp-heading-sm);
    line-height: 1.15;
}

.customparam-card-note {
    margin: 6px 0 0;
    max-width: 720px;
    color: var(--tp-color-text-muted);
    font-size: 0.95rem;
    line-height: 1.45;
}

/* ── State note (overwrite warning) ── */

.customparam-state-note {
    margin-bottom: 14px;
}

/* ── Form ── */

.customparam-form {
    display: grid;
    gap: 16px;
}

.customparam-field {
    display: grid;
    gap: 7px;
}

.customparam-field .tp-ui-control,
.customparam-field .form-control,
.customparam-field input[type="file"] {
    min-height: 44px;
    border-radius: 12px;
}

.customparam-field-help {
    margin: 0;
    color: var(--tp-color-text-muted);
    font-size: var(--tp-font-size-sm);
    line-height: 1.4;
}

.customparam-field-error {
    margin: 0;
    color: var(--tp-color-danger-ink);
    font-size: var(--tp-font-size-sm);
    font-weight: 600;
}

/* ── Submit row ── */

.customparam-submit-row {
    display: flex;
    gap: 14px;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border: 1px solid var(--tp-color-border-soft);
    border-radius: 18px;
    background: var(--tp-color-surface-soft);
}

.customparam-submit-copy {
    min-width: 0;
}

.customparam-submit-title {
    margin: 0;
    color: var(--cp-accent-ink);
    font-size: 0.96rem;
    font-weight: 600;
}

.customparam-submit-note {
    margin: 4px 0 0;
    color: var(--tp-color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.45;
}

.customparam-actions {
    margin-top: 0;
    flex-shrink: 0;
}

/* ── Guide (aside) ── */

.customparam-guide {
    display: grid;
    gap: 14px;
    margin-bottom: 4px;
}

.customparam-guide-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: start;
    padding: 12px 0;
    border-top: 1px solid var(--tp-color-border-soft);
}

.customparam-guide-item:first-child {
    border-top: 0;
    padding-top: 2px;
}

.customparam-guide-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 999px;
    background: var(--cp-accent-soft);
    border: 1px solid var(--cp-accent-border);
    color: var(--cp-accent-ink);
    font-weight: var(--tp-font-weight-bold);
    font-size: 0.92rem;
    flex-shrink: 0;
}

.customparam-guide-item h3 {
    margin: 0;
    color: var(--cp-accent-ink);
    font-size: 0.98rem;
    line-height: 1.25;
}

.customparam-guide-item p {
    margin: 5px 0 0;
    color: var(--tp-color-text-secondary);
    font-size: 0.91rem;
    line-height: 1.5;
}

/* ── Code example ── */

.customparam-example {
    padding: 12px 14px;
    border: 1px solid var(--tp-color-border-soft);
    border-radius: 14px;
    background: var(--tp-color-surface-soft);
}

.customparam-example-label {
    margin: 0 0 8px;
    color: var(--tp-color-text-muted);
    font-size: var(--tp-font-label);
    font-weight: 500;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.customparam-example-code {
    display: block;
    font-family: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
    color: var(--tp-color-text-secondary);
    font-size: 0.8rem;
    line-height: 1.55;
    white-space: pre;
    overflow-x: auto;
}

/* ── Animations ── */

.customparam-hero,
.customparam-layout {
    animation: customparam-enter 0.36s ease;
}

.customparam-layout {
    animation-delay: 0.04s;
}

@keyframes customparam-enter {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Responsive ── */

@media (max-width: 980px) {
    .customparam-layout {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 768px) {
    .customparam-hero {
        padding: 18px 16px 16px;
    }

    .customparam-card {
        padding: 14px;
    }

    .customparam-submit-row {
        flex-direction: column;
        align-items: stretch;
    }
}