/* ==========================================================
   Prompt Version Diff — all selectors scoped to .pvd-
   ========================================================== */

.pvd-shell { display: flex; flex-direction: column; gap: 1.5rem; }

/* ── Recipe banner ───────────────────────────────────────── */
.pvd-recipe-banner {
    display: flex; align-items: center; gap: 0.65rem;
    padding: 0.65rem 1rem;
    background: rgba(99, 91, 255, 0.08); border: 1px solid rgba(99, 91, 255, 0.22);
    border-radius: var(--np-radius-sm, 6px); font-size: 0.84rem; color: var(--np-text-secondary); line-height: 1.4;
}
.pvd-recipe-icon { color: var(--np-accent-light, #818cf8); font-size: 0.8rem; flex-shrink: 0; }
.pvd-recipe-text { flex: 1; }
.pvd-recipe-text strong { color: var(--np-text-primary); font-weight: 600; }
.pvd-recipe-dismiss {
    display: flex; align-items: center; justify-content: center; width: 20px; height: 20px; flex-shrink: 0;
    background: none; border: none; color: var(--np-text-muted); font-size: 1.1rem; cursor: pointer; padding: 0; line-height: 1;
}
.pvd-recipe-dismiss:hover { color: var(--np-text-primary); }

/* ── Hero ────────────────────────────────────────────────── */
.pvd-hero {
    display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
    padding: 1.75rem;
    background: radial-gradient(ellipse at top left, rgba(99,102,241,0.09) 0%, transparent 60%), var(--np-bg-card);
    border: 1px solid var(--np-border); border-radius: var(--np-radius-lg, 14px);
}
.pvd-hero-text { display: flex; flex-direction: column; gap: 0.6rem; max-width: 680px; }
.pvd-eyebrow { color: var(--np-accent-light, #818cf8); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.pvd-title { font-size: clamp(1.5rem, 2.5vw, 2rem); letter-spacing: -0.02em; color: var(--np-text-primary); margin: 0; }
.pvd-subtitle { color: var(--np-text-secondary); font-size: 0.9375rem; line-height: 1.65; margin: 0; }
.pvd-hero-actions { flex-shrink: 0; padding-top: 0.2rem; }

/* ── Buttons ─────────────────────────────────────────────── */
.pvd-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
    min-height: 44px; padding: 0 1.1rem; border-radius: 9px;
    font: inherit; font-size: 0.875rem; font-weight: 500; cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s, opacity 0.15s, transform 0.1s;
    text-decoration: none; white-space: nowrap; border: 1px solid transparent; outline: none;
}
.pvd-btn:focus-visible { outline: 2px solid var(--np-accent, #6366f1); outline-offset: 2px; }
.pvd-btn--primary {
    width: 100%; min-height: 48px; border-radius: 12px;
    background: linear-gradient(135deg, var(--np-accent, #6366f1), #4338ca);
    color: #fff; font-size: 0.9375rem; font-weight: 700;
    box-shadow: 0 8px 24px rgba(99,102,241,0.28);
}
.pvd-btn--primary:hover  { background: linear-gradient(135deg, var(--np-accent-light, #818cf8), var(--np-accent, #6366f1)); }
.pvd-btn--primary:active { transform: scale(0.99); }
.pvd-btn--ghost { background: transparent; color: var(--np-text-secondary); border-color: rgba(255,255,255,0.1); }
.pvd-btn--ghost:hover { background: rgba(255,255,255,0.05); color: var(--np-text-primary); border-color: rgba(255,255,255,0.18); }
.pvd-btn--ghost:disabled { opacity: 0.38; cursor: not-allowed; pointer-events: none; }
.pvd-btn--clear { margin-left: auto; }

/* ── Preset bar ──────────────────────────────────────────── */
.pvd-preset-bar {
    display: flex; align-items: center; flex-wrap: wrap; gap: 0.5rem;
    padding: 0.85rem 1.1rem; background: var(--np-bg-card); border: 1px solid var(--np-border); border-radius: var(--np-radius-lg, 14px);
}
.pvd-preset-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--np-text-muted); flex-shrink: 0; margin-right: 0.25rem; }
.pvd-preset-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.pvd-preset-pill {
    height: 30px; padding: 0 0.75rem; font: inherit; font-size: 0.78rem; font-weight: 500; color: var(--np-text-secondary);
    background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.09); border-radius: 100px; cursor: pointer;
    transition: background 0.13s, border-color 0.13s, color 0.13s; white-space: nowrap; outline: none;
}
.pvd-preset-pill:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.18); color: var(--np-text-primary); }
.pvd-preset-pill:focus-visible { outline: 2px solid var(--np-accent, #6366f1); outline-offset: 2px; }
.pvd-preset-pill.is-active { background: rgba(99,102,241,0.15); border-color: rgba(99,102,241,0.4); color: var(--np-accent-light, #818cf8); font-weight: 600; }

/* ── Workspace / input card ──────────────────────────────── */
.pvd-workspace { display: flex; flex-direction: column; gap: 1.25rem; }
.pvd-input-card {
    display: flex; flex-direction: column; gap: 1.25rem; padding: 1.75rem;
    background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 50%), var(--np-bg-card);
    border: 1px solid rgba(255,255,255,0.11); border-radius: var(--np-radius-lg, 14px);
}

/* v1/v2 side-by-side on desktop, stacked on mobile */
.pvd-ab-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }

.pvd-field-group { display: flex; flex-direction: column; gap: 0.45rem; min-width: 0; }
.pvd-label { font-size: 0.8125rem; font-weight: 600; color: #a8b9cc; display: flex; align-items: center; gap: 0.45rem; flex-wrap: wrap; }
.pvd-version-tag {
    display: inline-flex; align-items: center; height: 18px; padding: 0 0.45rem; border-radius: 99px;
    background: rgba(99,102,241,0.12); border: 1px solid rgba(99,102,241,0.3);
    color: var(--np-accent-light, #818cf8); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
}
.pvd-required-mark { color: var(--np-error, #f87171); }
.pvd-field-hint { font-size: 0.78rem; color: var(--np-text-muted); line-height: 1.5; margin: 0; }

.pvd-textarea {
    width: 100%; background: var(--np-bg-input); border: 1px solid rgba(255,255,255,0.13); border-radius: 10px;
    color: var(--np-text-primary); font: inherit; font-size: 0.875rem; padding: 0.75rem 0.9rem; resize: vertical; outline: none;
    transition: border-color 0.15s, box-shadow 0.15s; box-shadow: inset 0 1px 4px rgba(0,0,0,0.32);
    line-height: 1.65; min-height: 150px; max-height: 420px;
}
.pvd-textarea::placeholder { color: var(--np-text-muted); font-size: 0.84rem; }
.pvd-textarea:hover:not(:focus) { border-color: rgba(255,255,255,0.22); }
.pvd-textarea:focus { border-color: var(--np-border-focus, rgba(99,102,241,0.5)); box-shadow: 0 0 0 3px rgba(99,102,241,0.14), inset 0 1px 4px rgba(0,0,0,0.28); }

.pvd-error-box { padding: 0.65rem 0.85rem; background: rgba(248,113,113,0.08); border: 1px solid rgba(248,113,113,0.22); border-radius: 8px; font-size: 0.8125rem; color: #fca5a5; line-height: 1.5; }
.pvd-error-box p { margin: 0; }
.pvd-error-box[hidden] { display: none; }

/* ── Compare row (full-width CTA) ────────────────────────── */
.pvd-compare-row { padding-top: 0.75rem; border-top: 1px solid var(--np-border); }

/* ── Output ──────────────────────────────────────────────── */
.pvd-output-section { display: flex; flex-direction: column; gap: 1.25rem; }
.pvd-output-section[hidden] { display: none !important; }

.pvd-output-card { background: var(--np-bg-card); border: 1px solid var(--np-border); border-radius: var(--np-radius-lg, 14px); overflow: hidden; }
.pvd-output-head { padding: 0.85rem 1.5rem; border-bottom: 1px solid var(--np-border); }
.pvd-output-title { font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--np-text-secondary); }
.pvd-output-title--added   { color: #4ade80; }
.pvd-output-title--removed { color: #f87171; }

/* Summary stats */
.pvd-summary { display: flex; flex-wrap: wrap; gap: 0.75rem; padding: 1.1rem 1.5rem 0.5rem; }
.pvd-stat {
    flex: 1 1 110px; min-width: 0; display: flex; flex-direction: column; gap: 0.2rem;
    background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.07); border-radius: 10px; padding: 0.7rem 0.9rem;
}
.pvd-stat-num { font-size: 1.15rem; font-weight: 800; color: var(--np-accent-light, #818cf8); font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pvd-stat-label { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--np-text-muted); }

/* Net assessment banner */
.pvd-assessment { margin: 0.6rem 1.5rem 1.25rem; padding: 0.95rem 1.25rem; border-radius: 12px; border: 1px solid rgba(255,255,255,0.16); background: rgba(255,255,255,0.04); }
.pvd-assessment--good    { border-color: rgba(74,222,128,0.35);  background: linear-gradient(135deg, rgba(74,222,128,0.1), rgba(74,222,128,0.03)); }
.pvd-assessment--mixed   { border-color: rgba(251,191,36,0.35);  background: linear-gradient(135deg, rgba(251,191,36,0.1), rgba(251,191,36,0.03)); }
.pvd-assessment--bad     { border-color: rgba(248,113,113,0.35); background: linear-gradient(135deg, rgba(248,113,113,0.1), rgba(248,113,113,0.03)); }
.pvd-verdict { margin: 0; font-size: 1rem; font-weight: 700; color: var(--np-text-primary); }
.pvd-verdict-detail { margin: 0.3rem 0 0; font-size: 0.85rem; color: var(--np-text-secondary); line-height: 1.5; }

/* Added/Removed two-column grid */
.pvd-change-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.pvd-change-grid .pvd-output-card > div:last-child { padding: 1rem 1.5rem 1.1rem; }
.pvd-output-card > #pvd-modified { padding: 1rem 1.5rem 1.1rem; }

/* Lists */
.pvd-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.4rem; }
.pvd-list li { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.84rem; color: var(--np-text-secondary); line-height: 1.55; }
.pvd-list--added li::before   { content: '+'; color: #4ade80; font-weight: 800; flex-shrink: 0; }
.pvd-list--removed li::before { content: '−'; color: #f87171; font-weight: 800; flex-shrink: 0; }
.pvd-note { margin: 0; font-size: 0.82rem; color: var(--np-text-muted); font-style: italic; line-height: 1.5; }

/* Structural / risk change rows */
.pvd-change { border-radius: 8px; }
.pvd-change-sign { font-weight: 800; flex-shrink: 0; }
.pvd-change--added   .pvd-change-sign { color: #4ade80; }
.pvd-change--removed .pvd-change-sign { color: #f87171; }
.pvd-change--good::before    { content: '↑'; color: #4ade80; font-weight: 800; flex-shrink: 0; }
.pvd-change--bad::before     { content: '↓'; color: #f87171; font-weight: 800; flex-shrink: 0; }
.pvd-change--neutral::before { content: '·'; color: var(--np-text-muted); font-weight: 800; flex-shrink: 0; }

/* Modified pairs */
.pvd-mod-pair { display: flex; flex-direction: column; gap: 0.3rem; padding: 0.7rem 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
.pvd-mod-pair:first-child { padding-top: 0; }
.pvd-mod-pair:last-child { border-bottom: none; padding-bottom: 0; }
.pvd-mod-before, .pvd-mod-after { margin: 0; display: flex; align-items: flex-start; gap: 0.55rem; font-size: 0.84rem; line-height: 1.55; }
.pvd-mod-before { color: var(--np-text-muted); }
.pvd-mod-after  { color: var(--np-text-secondary); }
.pvd-mod-tag {
    display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 0.1rem;
    height: 17px; min-width: 26px; padding: 0 0.35rem; border-radius: 99px;
    font-size: 0.62rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
}
.pvd-mod-tag--v1 { background: rgba(248,113,113,0.12); border: 1px solid rgba(248,113,113,0.3); color: #f87171; }
.pvd-mod-tag--v2 { background: rgba(74,222,128,0.12);  border: 1px solid rgba(74,222,128,0.3);  color: #4ade80; }

/* Output actions */
.pvd-output-actions { padding: 0.85rem 1.25rem; }
.pvd-action-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }

/* Status */
.pvd-status { min-height: 1.25rem; font-size: 0.8125rem; color: var(--np-text-secondary); text-align: right; padding: 0 0.25rem; transition: opacity 0.2s; }

/* ── Mobile ──────────────────────────────────────────────── */
@media (max-width: 820px) {
    .pvd-ab-grid, .pvd-change-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
    .pvd-hero { flex-direction: column; gap: 1rem; }
    .pvd-hero-actions { padding-top: 0; }
    .pvd-input-card, .pvd-output-card { border-radius: 10px; }
    .pvd-summary { padding-left: 1rem; padding-right: 1rem; }
    .pvd-assessment { margin-left: 1rem; margin-right: 1rem; }
    .pvd-change-grid .pvd-output-card > div:last-child,
    .pvd-output-card > #pvd-modified { padding-left: 1rem; padding-right: 1rem; }
    .pvd-stat { flex-basis: 96px; }
}