/* ============================================================
   RTF File Viewer - scoped under .rtv / .rtv-* (rebuilt 2026-10-10)
   Shared header, footer, FAQ and related pills come from custom_styles.css.
   Accent: blue #3399cc (viewers). Single colours, no gradients,
   no thick side borders. Light default, dark via [data-theme="dark"].
   The document itself always sits on paper (white / sepia / night).
   ============================================================ */
.rtv {
    --rtv-accent: #3399cc;
    --rtv-accent-strong: #237a9f;
    --rtv-accent-soft: rgba(51, 153, 204, 0.09);
    --rtv-accent-line: rgba(51, 153, 204, 0.45);
    --rtv-go: #237a9f;
    --rtv-go-hover: #1b6183;
    --rtv-card: var(--bg-elevated, #fff);
    --rtv-sunk: var(--card-tertiary, #f1f5f9);
    --rtv-open: var(--card-secondary, #f8f9fa);
    --rtv-line: var(--border-color, #e2e8f0);
    --rtv-text-1: var(--text-primary, #1e293b);
    --rtv-text-2: var(--text-secondary, #555);
    --rtv-muted: var(--text-muted, #64748b);
    --rtv-ok: #2f855a;
    --rtv-warn: #b45309;
    --rtv-red: #c23b3b;
    --rtv-red-soft: rgba(230, 78, 78, 0.08);
    --rtv-red-line: rgba(230, 78, 78, 0.35);
    --rtv-desk: #e8edf2;
    --rtv-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}
[data-theme="dark"] .rtv {
    --rtv-accent: #60a5fa;
    --rtv-accent-strong: #93c5fd;
    --rtv-accent-soft: rgba(96, 165, 250, 0.12);
    --rtv-accent-line: rgba(96, 165, 250, 0.45);
    --rtv-go: #2563eb;
    --rtv-go-hover: #1d4ed8;
    --rtv-sunk: #172033;
    --rtv-open: #1a2438;
    --rtv-ok: #4ade80;
    --rtv-warn: #fbbf24;
    --rtv-red: #f87171;
    --rtv-red-soft: rgba(248, 113, 113, 0.1);
    --rtv-red-line: rgba(248, 113, 113, 0.4);
    --rtv-desk: #0f1626;
}

.rtv.tool-container { max-width: 1180px; margin: 0 auto; padding: 2rem; }
.rtv [hidden], .rtv-root [hidden] { display: none !important; }
.rtv .rtv-main { background: none; border: none; box-shadow: none; border-radius: 0; overflow: visible; padding: 0; }
.rtv button { font: inherit; }
.rtv kbd {
    display: inline-block; padding: 0.05rem 0.4rem; border-radius: 5px; border: 1px solid var(--rtv-line); border-bottom-width: 2px;
    background: var(--rtv-card); font: 600 0.78em var(--rtv-mono); color: var(--rtv-text-1);
}
.rtv .rtv-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
.rtv :focus-visible { outline: 3px solid var(--rtv-accent-line); outline-offset: 2px; }

/* ---------- title ---------- */
.rtv .tool-header { text-align: center; margin-bottom: 1.75rem; }
.rtv .rtv-title-row { display: flex; align-items: center; justify-content: center; gap: 0.9rem; margin-bottom: 0.9rem; }
.rtv .rtv-title-icon {
    width: 56px; height: 56px; border-radius: 16px; background: var(--rtv-accent); color: #fff;
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
[data-theme="dark"] .rtv .rtv-title-icon { color: #0b1e33; }
.rtv .rtv-title-icon svg { width: 30px; height: 30px; display: block; }
.rtv .tool-title { margin: 0; font-size: 2rem; font-weight: 700; color: var(--rtv-accent); line-height: 1.2; }
.rtv .tool-description { max-width: 800px; margin: 0 auto; font-size: 1.05rem; line-height: 1.65; color: var(--rtv-text-2); }
.rtv .tool-description a { color: var(--rtv-accent-strong); font-weight: 500; }
[data-theme="dark"] .rtv .tool-description a { color: var(--rtv-accent); }

/* ---------- error ---------- */
.rtv .rtv-error {
    display: flex; align-items: flex-start; gap: 0.7rem; margin: 0 0 1rem; padding: 0.9rem 1rem;
    border-radius: 12px; border: 1px solid var(--rtv-red-line); background: var(--rtv-red-soft); color: var(--rtv-text-1);
}
.rtv .rtv-error > svg { width: 20px; height: 20px; color: #e64e4e; flex-shrink: 0; margin-top: 2px; }
.rtv .rtv-error > div { flex: 1; min-width: 0; }
.rtv .rtv-error p { margin: 0; font-size: 0.92rem; line-height: 1.55; overflow-wrap: anywhere; color: var(--rtv-text-1); }
.rtv .rtv-error p + p { margin-top: 0.3rem; color: var(--rtv-muted); font-size: 0.86rem; }
.rtv .rtv-error a { color: var(--rtv-red); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.rtv .rtv-x {
    display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; flex-shrink: 0;
    border: none; border-radius: 8px; background: none; color: var(--rtv-muted); cursor: pointer; padding: 0; margin: 0;
}
.rtv .rtv-x:hover { background: rgba(100, 116, 139, 0.12); color: var(--rtv-text-1); }
.rtv .rtv-x svg { width: 17px; height: 17px; }

/* ---------- cards ---------- */
.rtv .rtv-card {
    background: var(--rtv-card); border: 1px solid var(--rtv-line); border-radius: 20px;
    padding: 1.25rem; box-shadow: var(--shadow-sm); margin-bottom: 1.25rem; min-width: 0;
}

/* ---------- buttons ---------- */
.rtv .rtv-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem; width: auto;
    min-height: 44px; padding: 0.6rem 1.1rem; margin: 0; border-radius: 12px; border: 1px solid transparent;
    font-size: 0.95rem; font-weight: 700; cursor: pointer; white-space: nowrap; text-decoration: none;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.rtv .rtv-btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.rtv .rtv-go { background: var(--rtv-go); color: #fff; }
.rtv .rtv-go:hover:not(:disabled) { background: var(--rtv-go-hover); color: #fff; }
.rtv .rtv-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.rtv .rtv-btn-lg { min-height: 48px; padding: 0.6rem 1.3rem; font-size: 0.98rem; }
.rtv .rtv-btn-sm { min-height: 36px; padding: 0.4rem 0.8rem; font-size: 0.85rem; border-radius: 10px; }
.rtv .rtv-btn-sm svg { width: 16px; height: 16px; }
.rtv .rtv-btn-ghost { background: var(--rtv-sunk); color: var(--rtv-text-2); border-color: var(--rtv-line); }
.rtv .rtv-btn-ghost:hover:not(:disabled) { color: var(--rtv-text-1); border-color: var(--rtv-accent-line); }
.rtv .rtv-text-btn {
    display: inline-flex; align-items: center; gap: 0.35rem; width: auto; padding: 0.35rem 0.55rem; margin: 0; border: none; border-radius: 8px;
    background: none; color: var(--rtv-accent-strong); font-size: 0.85rem; font-weight: 600; cursor: pointer; white-space: nowrap;
}
[data-theme="dark"] .rtv .rtv-text-btn { color: var(--rtv-accent); }
.rtv .rtv-text-btn:hover:not(:disabled) { background: var(--rtv-accent-soft); }
.rtv .rtv-text-btn svg { width: 15px; height: 15px; }
.rtv .rtv-icon-btn {
    display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; padding: 0; margin: 0;
    border: none; border-radius: 8px; background: none; color: var(--rtv-text-2); cursor: pointer; flex-shrink: 0;
}
.rtv .rtv-icon-btn:hover:not(:disabled) { background: var(--rtv-accent-soft); color: var(--rtv-text-1); }
.rtv .rtv-icon-btn:disabled { opacity: 0.35; cursor: default; }
.rtv .rtv-icon-btn svg { width: 18px; height: 18px; }
.rtv .rtv-icon-btn[aria-pressed="true"] { background: var(--rtv-accent-soft); color: var(--rtv-accent-strong); }
[data-theme="dark"] .rtv .rtv-icon-btn[aria-pressed="true"] { color: var(--rtv-accent); }
.rtv .rtv-seg-btn {
    display: inline-flex; align-items: center; gap: 0.4rem; width: auto; min-height: 38px; padding: 0.35rem 0.95rem; margin: 0; border-radius: 999px;
    border: 1px solid var(--rtv-line); background: var(--rtv-card); color: var(--rtv-text-1); font-size: 0.88rem; font-weight: 700; cursor: pointer;
}
.rtv .rtv-seg-btn svg { width: 16px; height: 16px; color: var(--rtv-accent); }
.rtv .rtv-seg-btn:hover { border-color: var(--rtv-accent); }
.rtv .rtv-chip {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem; width: auto; min-height: 34px; padding: 0.3rem 0.4rem; margin: 0;
    border-radius: 9px; border: 1px solid var(--rtv-line); background: var(--rtv-card); color: var(--rtv-text-2);
    font-size: 0.8rem; font-weight: 700; cursor: pointer; min-width: 0;
}
.rtv .rtv-chip:hover { border-color: var(--rtv-accent-line); }
.rtv .rtv-chip.is-active { border-color: var(--rtv-accent); background: var(--rtv-accent-soft); color: var(--rtv-accent-strong); }
[data-theme="dark"] .rtv .rtv-chip.is-active { color: var(--rtv-accent); }
.rtv .rtv-swatch { width: 12px; height: 12px; border-radius: 3px; flex-shrink: 0; border: 1px solid rgba(100, 116, 139, 0.45); }
.rtv .rtv-quick { display: grid; gap: 0.35rem; }
.rtv .rtv-quick > * { min-width: 0; }
.rtv .rtv-quick-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* ---------- upload ---------- */
.rtv .rtv-drop {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.35rem; text-align: center;
    min-height: 200px; padding: 1.5rem 1.25rem; border-radius: 16px; border: 2px dashed var(--rtv-accent-line);
    background: var(--rtv-accent-soft); cursor: pointer; color: var(--rtv-muted); font-size: 0.86rem; line-height: 1.5;
    transition: border-color 0.15s, background 0.15s; box-sizing: border-box; margin: 0;
}
.rtv .rtv-drop:hover, .rtv .rtv-drop.is-drag { border-color: var(--rtv-accent); background: rgba(51, 153, 204, 0.14); }
.rtv .rtv-drop:focus-within { outline: 3px solid var(--rtv-accent-soft); }
.rtv .rtv-drop strong { font-size: 1.1rem; color: var(--rtv-text-1); }
.rtv .rtv-drop-link { color: var(--rtv-accent-strong); text-decoration: underline; text-underline-offset: 3px; }
[data-theme="dark"] .rtv .rtv-drop-link { color: var(--rtv-accent); }
.rtv .rtv-drop-icon {
    width: 58px; height: 58px; border-radius: 16px; display: flex; align-items: center; justify-content: center; margin-bottom: 0.35rem;
    background: var(--rtv-card); color: var(--rtv-accent); border: 1px solid var(--rtv-line);
}
.rtv .rtv-drop-icon svg { width: 28px; height: 28px; }
body.rtv-dragging .rtv .rtv-drop { border-color: var(--rtv-accent); background: rgba(51, 153, 204, 0.16); }
.rtv .rtv-sample-row { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; margin-top: 1rem; }
.rtv .rtv-hint-text { font-size: 0.8rem; color: var(--rtv-muted); }
.rtv .rtv-under { display: flex; flex-wrap: wrap; align-items: center; gap: 0.45rem 0.6rem; margin-top: 1rem; }
.rtv .rtv-pill {
    display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.22rem 0.65rem; border-radius: 999px;
    background: var(--rtv-sunk); border: 1px solid var(--rtv-line); font-size: 0.78rem; font-weight: 600; color: var(--rtv-text-2);
}
.rtv .rtv-pill svg { width: 14px; height: 14px; color: var(--rtv-accent); }

/* ---------- progress ---------- */
.rtv .rtv-prog { padding: 1rem 1.1rem; }
.rtv .rtv-prog-top { display: flex; align-items: center; gap: 0.9rem; flex-wrap: wrap; }
.rtv .rtv-loader {
    display: block; width: 40px; height: 40px; flex-shrink: 0; overflow: visible;
    --cico-outer: #f2534e; --cico-outer-soft: #f8d3d1; --cico-mid: #31ae77; --cico-mid-soft: #d0e7dd; --cico-inner: #2b9edb;
}
[data-theme="dark"] .rtv .rtv-loader { --cico-outer-soft: rgba(242, 83, 78, 0.22); --cico-mid-soft: rgba(49, 174, 119, 0.22); }
.rtv .rtv-loader circle { fill: none; stroke-width: 72; transform-box: fill-box; transform-origin: center; }
.rtv .rtv-loader .bp { stroke: var(--cico-outer-soft); }
.rtv .rtv-loader .gp { stroke: var(--cico-mid-soft); }
.rtv .rtv-loader .b { stroke: var(--cico-outer); stroke-linecap: round; stroke-dasharray: 35.3 100; animation: rtvSpinL 1.3s linear infinite; }
.rtv .rtv-loader .g { stroke: var(--cico-mid); stroke-linecap: round; stroke-dasharray: 75.8 100; animation: rtvSpinR 2.1s linear infinite; }
.rtv .rtv-loader .r { stroke: var(--cico-inner); animation: rtvBreathe 1.3s ease-in-out infinite; }
@keyframes rtvSpinL { from { transform: rotate(117deg); } to { transform: rotate(-243deg); } }
@keyframes rtvSpinR { from { transform: rotate(36deg); } to { transform: rotate(396deg); } }
@keyframes rtvBreathe { 50% { transform: scale(0.9); } }
@media (prefers-reduced-motion: reduce) {
    .rtv .rtv-loader .b { animation-duration: 4s; }
    .rtv .rtv-loader .g { animation-duration: 6s; }
    .rtv .rtv-loader .r { animation: none; }
}
.rtv .rtv-stages { display: flex; align-items: center; flex-wrap: wrap; row-gap: 0.4rem; }
.rtv .rtv-pstage { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.8rem; font-weight: 700; color: var(--rtv-muted); }
.rtv .rtv-dot { display: inline-flex; align-items: center; justify-content: center; padding: 6px; border-radius: 50%; background: var(--rtv-card); border: 1px solid var(--rtv-line); color: var(--rtv-muted); }
.rtv .rtv-dot svg { width: 18px; height: 18px; display: block; }
.rtv .rtv-pstage.active { color: var(--rtv-text-1); }
.rtv .rtv-pstage.active .rtv-dot { background: var(--rtv-go); border-color: var(--rtv-go); color: #fff; }
.rtv .rtv-pstage.done .rtv-dot { background: #339966; border-color: #339966; color: #fff; }
.rtv .rtv-pstage-line { width: 28px; height: 2px; margin: 0 0.5rem; border-radius: 2px; background: var(--rtv-line); flex-shrink: 0; }
.rtv .rtv-pstage-line.done { background: #339966; }
.rtv .rtv-prog-head { display: flex; align-items: baseline; justify-content: space-between; gap: 0.75rem; margin-top: 0.85rem; }
.rtv .rtv-prog-text { font-size: 0.86rem; color: var(--rtv-text-2); min-width: 0; overflow-wrap: anywhere; }
.rtv .rtv-prog-pct { font-size: 0.95rem; font-weight: 800; color: var(--rtv-text-1); font-variant-numeric: tabular-nums; }
.rtv .rtv-bar { position: relative; height: 8px; margin-top: 0.5rem; border-radius: 999px; background: var(--rtv-line); overflow: hidden; }
.rtv .rtv-bar-fill { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--rtv-go); border-radius: 999px; transition: width 0.3s; }

/* ---------- viewer head ---------- */
.rtv .rtv-filehead { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; }
.rtv .rtv-fileicon { width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--rtv-accent-soft); color: var(--rtv-accent); }
.rtv .rtv-fileicon svg { width: 22px; height: 22px; }
.rtv .rtv-filetext { flex: 1; min-width: 0; }
.rtv .rtv-filetext strong { display: block; font-size: 1.02rem; color: var(--rtv-text-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rtv .rtv-filetext span { display: block; font-size: 0.82rem; color: var(--rtv-muted); overflow-wrap: anywhere; }
.rtv .rtv-kind { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.25rem 0.7rem; border-radius: 999px; font-size: 0.8rem; font-weight: 700; white-space: nowrap; background: var(--rtv-accent-soft); border: 1px solid var(--rtv-accent-line); color: var(--rtv-accent-strong); }
[data-theme="dark"] .rtv .rtv-kind { color: var(--rtv-accent); }
.rtv .rtv-stats { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.75rem; }
.rtv .rtv-stat { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.22rem 0.6rem; border-radius: 999px; background: var(--rtv-sunk); border: 1px solid var(--rtv-line); font-size: 0.78rem; color: var(--rtv-text-2); }
.rtv .rtv-stat svg { width: 14px; height: 14px; color: var(--rtv-accent); }
.rtv .rtv-stat strong { color: var(--rtv-text-1); font-variant-numeric: tabular-nums; }
.rtv .rtv-note {
    display: flex; gap: 0.6rem; align-items: center; padding: 0.6rem 0.9rem; margin: 0.75rem 0 0; border-radius: 12px;
    font-size: 0.84rem; line-height: 1.5; color: var(--rtv-text-1); background: rgba(51, 153, 204, 0.08); border: 1px solid rgba(51, 153, 204, 0.3);
}
.rtv .rtv-note > svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--rtv-accent); }
.rtv .rtv-note p { margin: 0; flex: 1; min-width: 0; overflow-wrap: anywhere; color: var(--rtv-text-1); }
.rtv .rtv-note .rtv-text-btn { flex-shrink: 0; }

/* ---------- toolbar ---------- */
.rtv .rtv-toolbar { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; margin-top: 1rem; }
.rtv .rtv-segs { display: inline-flex; padding: 0.2rem; gap: 0.2rem; border-radius: 10px; background: var(--rtv-sunk); border: 1px solid var(--rtv-line); max-width: 100%; }
.rtv .rtv-segs button { display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem; width: auto; min-height: 34px; padding: 0.2rem 0.8rem; margin: 0; border: none; border-radius: 8px; background: none; color: var(--rtv-muted); font-size: 0.84rem; font-weight: 700; cursor: pointer; }
.rtv .rtv-segs button svg { width: 16px; height: 16px; }
.rtv .rtv-segs button:hover { color: var(--rtv-text-1); }
.rtv .rtv-segs button.is-active { background: var(--rtv-card); color: var(--rtv-accent-strong); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08); }
[data-theme="dark"] .rtv .rtv-segs button.is-active { color: var(--rtv-accent); background: #26334a; }
.rtv .rtv-search { flex: 1; min-width: 220px; display: flex; align-items: center; gap: 0.25rem; height: 40px; padding: 0 0.3rem 0 0.7rem; border-radius: 10px; border: 1px solid var(--rtv-line); background: var(--input-bg, #fff); box-sizing: border-box; }
.rtv .rtv-search:focus-within { border-color: var(--rtv-accent); box-shadow: 0 0 0 3px var(--rtv-accent-soft); }
.rtv .rtv-search > svg { width: 16px; height: 16px; color: var(--rtv-muted); flex-shrink: 0; }
.rtv .rtv-search input { flex: 1; min-width: 0; width: auto; height: 100%; border: none; background: none; outline: none; box-shadow: none; color: var(--rtv-text-1); font-size: 0.9rem; padding: 0; margin: 0; }
.rtv .rtv-search .rtv-icon-btn { width: 30px; height: 30px; }
.rtv .rtv-flag { width: auto; min-width: 28px; height: 26px; padding: 0 0.3rem; margin: 0; border: 1px solid transparent; border-radius: 6px; background: none; color: var(--rtv-muted); font: 700 0.75rem var(--rtv-mono); cursor: pointer; flex-shrink: 0; }
.rtv .rtv-flag:hover { color: var(--rtv-text-1); }
.rtv .rtv-flag[aria-pressed="true"] { border-color: var(--rtv-accent); background: var(--rtv-accent-soft); color: var(--rtv-accent-strong); }
[data-theme="dark"] .rtv .rtv-flag[aria-pressed="true"] { color: var(--rtv-accent); }
.rtv .rtv-search-count { font-size: 0.76rem; color: var(--rtv-muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.rtv .rtv-search-count.is-none { color: var(--rtv-red); }

.rtv .rtv-tools { display: flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; margin-top: 0.6rem; padding: 0.3rem; border-radius: 12px; background: var(--rtv-sunk); border: 1px solid var(--rtv-line); }
.rtv .rtv-group { display: inline-flex; align-items: center; gap: 0.1rem; }
.rtv .rtv-tool-sep { width: 1px; height: 22px; background: var(--rtv-line); margin: 0 0.25rem; }
.rtv .rtv-tool-spacer { flex: 1; }
.rtv .rtv-zoom-val { min-width: 56px; height: 30px; padding: 0 0.35rem; margin: 0; border: 1px solid var(--rtv-line); border-radius: 8px; background: var(--rtv-card); color: var(--rtv-text-1); font-size: 0.8rem; font-weight: 700; font-variant-numeric: tabular-nums; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; box-sizing: border-box; }
.rtv .rtv-zoom-val.rtv-static { cursor: default; }
.rtv .rtv-pagenav { gap: 0.35rem; font-size: 0.82rem; color: var(--rtv-muted); }
.rtv .rtv-page-input {
    width: 58px; height: 30px; padding: 0 0.4rem; margin: 0; box-sizing: border-box; border-radius: 8px; border: 1px solid var(--rtv-line);
    background: var(--input-bg, #fff); color: var(--rtv-text-1); font-size: 0.85rem; font-weight: 700; text-align: center; -moz-appearance: textfield;
}
.rtv .rtv-page-input::-webkit-outer-spin-button, .rtv .rtv-page-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.rtv .rtv-page-total { white-space: nowrap; font-variant-numeric: tabular-nums; }

/* ---------- options (collapsed rows) ---------- */
.rtv .rtv-adv { border: 1px solid var(--rtv-line); border-radius: 12px; overflow: hidden; background: var(--rtv-card); margin-top: 0.75rem; }
.rtv .rtv-adv-row + .rtv-adv-row { border-top: 1px solid var(--rtv-line); }
.rtv .rtv-adv-head {
    display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; width: 100%; min-height: 52px; box-sizing: border-box;
    padding: 0.55rem 1rem; margin: 0; border: none; background: none; cursor: pointer; text-align: left; color: var(--rtv-text-1); font-weight: 400;
}
.rtv .rtv-adv-left { display: flex; align-items: center; gap: 0.65rem; min-width: 0; }
.rtv .rtv-adv-left > svg { width: 18px; height: 18px; color: var(--rtv-accent); flex-shrink: 0; }
.rtv .rtv-adv-text { display: flex; flex-direction: column; min-width: 0; }
.rtv .rtv-adv-title { font-size: 0.9rem; font-weight: 700; }
.rtv .rtv-adv-hint { font-size: 0.76rem; color: var(--rtv-muted); line-height: 1.35; }
.rtv .rtv-adv-right { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.rtv .rtv-adv-value {
    max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 0.2rem 0.55rem; border-radius: 999px;
    background: var(--rtv-accent-soft); color: var(--rtv-accent-strong); font-size: 0.76rem; font-weight: 700;
}
[data-theme="dark"] .rtv .rtv-adv-value { color: var(--rtv-accent); }
.rtv .rtv-chevron { width: 17px; height: 17px; color: var(--rtv-muted); transition: transform 0.2s; }
.rtv .rtv-adv-row.open .rtv-chevron { transform: rotate(180deg); }
.rtv .rtv-adv-row.open .rtv-adv-head, .rtv .rtv-adv-row.open .rtv-adv-body { background: var(--rtv-open); }
.rtv .rtv-adv-body { padding: 0.2rem 1rem 1rem; }
.rtv .rtv-switch-text { font-size: 0.74rem; font-weight: 800; color: var(--rtv-muted); min-width: 26px; text-align: right; }
.rtv .rtv-voice-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 0.75rem; }
.rtv .rtv-voice-grid > * { min-width: 0; }
.rtv .rtv-field { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.8rem; font-weight: 700; color: var(--rtv-text-2); }
.rtv .rtv-field b { color: var(--rtv-text-1); font-variant-numeric: tabular-nums; }
.rtv .rtv-select { width: 100%; height: 38px; padding: 0 0.5rem; margin: 0; border-radius: 9px; border: 1px solid var(--rtv-line); background: var(--input-bg, #fff); color: var(--rtv-text-1); font-size: 0.85rem; }
.rtv .rtv-range { width: 100%; margin: 0.45rem 0 0; accent-color: var(--rtv-go); }
/* switch - beats the global .tool-container checkbox rules */
.tool-container.rtv input[type="checkbox"].rtv-switch {
    -webkit-appearance: none !important; appearance: none !important; position: relative; flex-shrink: 0;
    width: 40px !important; height: 22px !important; margin: 0 !important; padding: 0 !important;
    border: none !important; border-radius: 999px !important; background: #cbd5e1 !important; box-shadow: none !important; cursor: pointer; transition: background 0.2s;
}
[data-theme="dark"] .tool-container.rtv input[type="checkbox"].rtv-switch { background: #475569 !important; }
.tool-container.rtv input[type="checkbox"].rtv-switch::after, .tool-container.rtv input[type="checkbox"].rtv-switch:checked::after {
    content: '' !important; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; border: none !important;
    background: #fff; transform: none !important; transition: left 0.2s; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); font-size: 0; line-height: 0;
}
.tool-container.rtv input[type="checkbox"].rtv-switch:checked { background: var(--rtv-go) !important; }
.tool-container.rtv input[type="checkbox"].rtv-switch:checked::after { left: 21px; }
.tool-container.rtv input[type="checkbox"].rtv-switch:focus-visible { outline: 3px solid var(--rtv-accent-line); outline-offset: 2px; }
.rtv .rtv-adv-row.is-off { opacity: 0.55; }

.rtv .rtv-resume { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.6rem; padding: 0.4rem 0.5rem 0.4rem 0.8rem; border-radius: 10px; background: rgba(51, 153, 102, 0.09); border: 1px solid rgba(51, 153, 102, 0.3); font-size: 0.84rem; color: var(--rtv-text-1); }
.rtv .rtv-resume > svg { width: 17px; height: 17px; color: #339966; flex-shrink: 0; }
.rtv .rtv-resume > span { flex: 1; min-width: 0; }

/* ---------- work area: side panel + stage ---------- */
.rtv .rtv-work { display: grid; grid-template-columns: 284px minmax(0, 1fr); gap: 0.75rem; margin-top: 0.75rem; min-width: 0; }
.rtv .rtv-work.no-side { grid-template-columns: minmax(0, 1fr); }
.rtv .rtv-work.no-side .rtv-side { display: none; }
.rtv .rtv-side { display: flex; flex-direction: column; min-width: 0; height: var(--rtv-h, 78vh); max-height: 900px; min-height: 420px; border: 1px solid var(--rtv-line); border-radius: 14px; background: var(--rtv-card); overflow: hidden; box-sizing: border-box; }
.rtv .rtv-side-tabs { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.05fr) minmax(0, 0.85fr) 38px; border-bottom: 1px solid var(--rtv-line); background: var(--rtv-sunk); }
.rtv .rtv-side-tabs button { display: inline-flex; align-items: center; justify-content: center; gap: 0.25rem; min-width: 0; height: 40px; padding: 0 0.2rem; margin: 0; border: none; background: none; color: var(--rtv-muted); font-size: 0.76rem; font-weight: 700; cursor: pointer; border-bottom: 2px solid transparent; }
.rtv .rtv-side-tabs button svg { width: 15px; height: 15px; flex-shrink: 0; }
.rtv .rtv-side-tabs button span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rtv .rtv-side-tabs button.is-active { color: var(--rtv-accent-strong); border-bottom-color: var(--rtv-accent); background: var(--rtv-card); }
[data-theme="dark"] .rtv .rtv-side-tabs button.is-active { color: var(--rtv-accent); }
.rtv .rtv-count { display: inline-flex; align-items: center; justify-content: center; min-width: 18px; height: 18px; padding: 0 4px; border-radius: 9px; background: var(--rtv-go); color: #fff; font-size: 0.68rem; box-sizing: border-box; }
.rtv .rtv-side-pane { flex: 1; min-height: 0; overflow: auto; padding: 0.5rem; }
.rtv .rtv-ol-item { display: block; width: 100%; padding: 0.35rem 0.5rem; margin: 0; border: none; border-radius: 7px; background: none; color: var(--rtv-text-2); font-size: 0.82rem; line-height: 1.35; text-align: left; cursor: pointer; overflow-wrap: anywhere; }
.rtv .rtv-ol-item:hover { background: var(--rtv-accent-soft); color: var(--rtv-text-1); }
.rtv .rtv-ol-item.is-cur { background: var(--rtv-accent-soft); color: var(--rtv-accent-strong); font-weight: 700; }
[data-theme="dark"] .rtv .rtv-ol-item.is-cur { color: var(--rtv-accent); }
.rtv .rtv-ol-item[data-l="1"] { font-weight: 700; color: var(--rtv-text-1); }
.rtv .rtv-empty { padding: 0.75rem 0.5rem; font-size: 0.82rem; color: var(--rtv-muted); line-height: 1.5; margin: 0; }
.rtv .rtv-side-h { display: flex; align-items: center; gap: 0.35rem; margin: 0.6rem 0.25rem 0.35rem; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--rtv-muted); }
.rtv .rtv-side-h:first-child { margin-top: 0.15rem; }
.rtv .rtv-cm { display: block; width: 100%; box-sizing: border-box; margin: 0 0 0.45rem; padding: 0.55rem 0.65rem; border-radius: 10px; border: 1px solid var(--rtv-line); background: var(--rtv-open); text-align: left; cursor: pointer; color: var(--rtv-text-1); }
.rtv .rtv-cm:hover { border-color: var(--rtv-accent-line); }
.rtv .rtv-cm-head { display: flex; align-items: center; gap: 0.4rem; font-size: 0.76rem; color: var(--rtv-muted); margin-bottom: 0.25rem; }
.rtv .rtv-cm-head b { color: var(--rtv-text-1); font-size: 0.8rem; }
.rtv .rtv-cm-n { display: inline-flex; align-items: center; justify-content: center; min-width: 18px; height: 18px; padding: 0 4px; border-radius: 5px; background: #f2c94c; color: #3a2c00; font-size: 0.68rem; font-weight: 800; box-sizing: border-box; }
.rtv .rtv-cm-body { font-size: 0.82rem; line-height: 1.45; color: var(--rtv-text-2); overflow-wrap: anywhere; }
.rtv .rtv-cm-body .rtv-p { margin: 0; }
.rtv .rtv-cm-tag { margin-left: auto; font-size: 0.68rem; font-weight: 700; padding: 0 0.35rem; border-radius: 5px; background: var(--rtv-sunk); }
.rtv .rtv-cm-ins .rtv-cm-n { background: #339966; color: #fff; }
.rtv .rtv-cm-del .rtv-cm-n { background: #e64e4e; color: #fff; }
.rtv .rtv-kv { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr); gap: 0.15rem 0.6rem; margin: 0 0.25rem 0.5rem; font-size: 0.8rem; line-height: 1.4; }
.rtv .rtv-kv dt { color: var(--rtv-muted); margin: 0; }
.rtv .rtv-kv dd { color: var(--rtv-text-1); margin: 0; overflow-wrap: anywhere; font-weight: 600; }
.rtv .rtv-res { display: flex; align-items: center; gap: 0.5rem; padding: 0.3rem 0.25rem; font-size: 0.78rem; color: var(--rtv-text-2); border-bottom: 1px solid var(--rtv-line); }
.rtv .rtv-res:last-child { border-bottom: none; }
.rtv .rtv-res img { width: 34px; height: 34px; object-fit: contain; border-radius: 5px; background: #fff; border: 1px solid var(--rtv-line); flex-shrink: 0; }
.rtv .rtv-res span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rtv .rtv-res .rtv-icon-btn { width: 28px; height: 28px; }
.rtv .rtv-bmk { display: flex; align-items: center; gap: 0.25rem; }
.rtv .rtv-bmk .rtv-ol-item { flex: 1; }

.rtv .rtv-stage {
    position: relative; min-width: 0; height: var(--rtv-h, 78vh); max-height: 900px; min-height: 420px; overflow: auto; box-sizing: border-box;
    border: 1px solid var(--rtv-line); border-radius: 14px; background: var(--rtv-desk); overscroll-behavior: contain; scroll-behavior: auto;
}
.rtv .rtv-stage:focus-visible { outline: 3px solid var(--rtv-accent-line); outline-offset: 2px; }
.rtv .rtv-viewer.is-full { position: fixed; inset: 0; z-index: 10000; margin: 0; border-radius: 0; overflow: auto; display: flex; flex-direction: column; }
.rtv .rtv-viewer.is-full .rtv-work { flex: 1; min-height: 0; }
.rtv .rtv-viewer.is-full .rtv-stage, .rtv .rtv-viewer.is-full .rtv-side { height: auto; max-height: none; min-height: 0; }
.rtv .rtv-viewer.is-full .rtv-actionbar, .rtv .rtv-viewer.is-full .rtv-stats { display: none; }
body.rtv-noscroll { overflow: hidden; }

/* ---------- action bar ---------- */
.rtv .rtv-actionbar { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--rtv-line); }
.rtv .rtv-actionbar .rtv-btn-ghost { min-height: 40px; padding: 0.4rem 0.7rem; font-size: 0.86rem; gap: 0.35rem; }
.rtv .rtv-actionbar .rtv-btn-ghost svg { width: 16px; height: 16px; }
.rtv .rtv-actionbar .rtv-go { margin-left: auto; }

/* toast */
.rtv .rtv-toast {
    position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 10003; max-width: calc(100vw - 32px); box-sizing: border-box;
    padding: 0.55rem 1rem; border-radius: 10px; background: #1e293b; color: #fff; font-size: 0.86rem; font-weight: 600;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25); transition: opacity 0.25s; text-align: center;
}
[data-theme="dark"] .rtv .rtv-toast { background: #e2e8f0; color: #0f172a; }
.rtv .rtv-toast.is-out { opacity: 0; }

/* ============================================================
   The document (paper). Fixed light palette in every site theme.
   ============================================================ */
.rtv .rtv-doc {
    --rtv-paper: #ffffff; --rtv-ink: #000000; --rtv-ts: 1; --rtv-zoom: 1;
    position: relative; color: var(--rtv-ink); font-family: "Liberation Serif", "Times New Roman", Times, serif; font-size: calc(12pt * var(--rtv-ts)); line-height: normal;
    text-align: start; -webkit-text-size-adjust: 100%;
}
.rtv .rtv-doc :where(div, span, table, td, th, tr, a, sup, sub, mark, del, ins, ruby, rt, section) { margin: 0; padding: 0; border: 0; font: inherit; color: inherit; background: none; text-decoration: inherit; vertical-align: baseline; box-sizing: border-box; }
.rtv .rtv-doc :where(.rtv-p) { margin: 0; min-height: 1em; overflow-wrap: break-word; }
.rtv .rtv-doc :where(a) { cursor: pointer; }
.rtv .rtv-doc :where(a.rtv-a-plain) { color: #000080; text-decoration: underline; }
.rtv .rtv-doc a.rtv-a-dead { cursor: help; }
.rtv .rtv-doc :where(img) { max-width: 100%; }
.rtv .rtv-doc .rtv-pages { zoom: var(--rtv-zoom); padding: 24px 0 32px; }
.rtv .rtv-doc .rtv-page {
    position: relative; width: var(--pw); min-height: var(--ph); margin: 0 auto 20px; box-sizing: border-box; background: var(--rtv-paper);
    display: flex; flex-direction: column; box-shadow: 0 1px 3px rgba(15, 23, 42, 0.18), 0 6px 22px rgba(15, 23, 42, 0.1); isolation: isolate;
    content-visibility: auto; contain-intrinsic-size: auto var(--pw) auto var(--ph);
}
.rtv .rtv-doc.no-cv .rtv-page { content-visibility: visible; }
.rtv .rtv-doc .rtv-page::after {
    content: attr(data-n); position: absolute; right: -2.6em; bottom: 0; font: 600 11px/1 system-ui, sans-serif; color: #8a94a6;
}
.rtv .rtv-doc .rtv-page-body { flex: 1 0 auto; display: flow-root; position: relative; }
.rtv .rtv-doc .rtv-hdr, .rtv .rtv-doc .rtv-ftr { flex: none; }
.rtv .rtv-doc .rtv-pfn { flex: none; margin-top: 0.5em; padding-top: 0.35em; font-size: 10pt; position: relative; }
.rtv .rtv-doc .rtv-pfn::before { content: ""; display: block; width: 33%; border-top: 0.75pt solid #000; margin-bottom: 0.3em; }
.rtv .rtv-doc .rtv-pfn .rtv-note + .rtv-note { margin-top: 0.15em; }
.rtv .rtv-doc .rtv-notes-end { display: none; }
/* reading view: reflowed, no paper boxes */
.rtv .rtv-doc.is-reading .rtv-pages { zoom: 1; padding: 0; }
.rtv .rtv-doc.is-reading .rtv-page {
    width: auto; min-height: 0; max-width: 46em; margin: 0 auto; padding: 0 2.25rem !important; box-shadow: none; display: block;
    content-visibility: auto; contain-intrinsic-size: auto 600px; background: transparent;
}
.rtv .rtv-doc.is-reading .rtv-page::after, .rtv .rtv-doc.is-reading .rtv-hdr, .rtv .rtv-doc.is-reading .rtv-ftr, .rtv .rtv-doc.is-reading .rtv-pfn { display: none; }
.rtv .rtv-doc.is-reading .rtv-page:first-child { padding-top: 2.5rem !important; }
.rtv .rtv-doc.is-reading .rtv-page:last-child { padding-bottom: 2.5rem !important; }
.rtv .rtv-doc.is-reading .rtv-notes-end { display: block; max-width: 46em; margin: 0 auto; padding: 0 2.25rem 2.5rem; }
.rtv .rtv-doc.is-reading .rtv-fr-pg { position: static; display: block; margin: 0.5em auto; }
.rtv .rtv-doc.is-reading { background: var(--rtv-paper); min-height: 100%; }
.rtv .rtv-stage.is-reading { background: var(--rtv-paper-stage, #ffffff); }
.rtv .rtv-doc.no-fonts, .rtv .rtv-doc.no-fonts * { font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important; }
.rtv .rtv-doc.no-fonts .rtv-mono, .rtv .rtv-doc.no-fonts .rtv-mono * { font-family: var(--rtv-mono) !important; }

/* paper themes */
.rtv .rtv-doc.th-sepia { --rtv-paper: #f6efdf; }
.rtv .rtv-stage.th-sepia { --rtv-paper-stage: #f6efdf; }
.rtv .rtv-doc.th-night { --rtv-paper: #ffffff; filter: invert(0.88) hue-rotate(180deg); }
.rtv .rtv-doc.th-night img, .rtv .rtv-doc.th-night .rtv-fr-img, .rtv .rtv-doc.th-night .rtv-stage-in > .rtv-fr-img { filter: invert(1) hue-rotate(180deg); }
.rtv .rtv-doc.th-night .rtv-fr-img img { filter: none; }
.rtv .rtv-stage.th-night { --rtv-paper-stage: #1e2128; background: #161a22; }
.rtv .rtv-stage.th-night.is-reading { background: #1e2128; }

/* paragraphs, labels, tabs */
.rtv .rtv-doc .rtv-h { break-after: avoid; }
.rtv .rtv-doc .rtv-lbl { display: inline-block; text-indent: 0; white-space: nowrap; font-style: normal; text-decoration: none; }
.rtv .rtv-doc .rtv-sp { white-space: pre-wrap; }
.rtv .rtv-doc .rtv-tab { white-space: pre; }
.rtv .rtv-doc .rtv-rtab { display: flex; align-items: baseline; text-indent: 0; }
.rtv .rtv-doc .rtv-rtab3 { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: baseline; text-indent: 0; }
.rtv .rtv-doc .rtv-rtab3 > .rtv-rt-c { text-align: center; }
.rtv .rtv-doc .rtv-rtab3 > .rtv-rt-b { text-align: end; }
.rtv .rtv-doc .rtv-rt-a { flex: 0 1 auto; min-width: 0; }
.rtv .rtv-doc .rtv-rt-b { flex: none; white-space: nowrap; }
.rtv .rtv-doc .rtv-lead { flex: 1 1 1em; min-width: 1em; white-space: normal; }
.rtv .rtv-doc .rtv-lead-dots { border-bottom: 1.5px dotted currentColor; margin: 0 0.3em; opacity: 0.6; transform: translateY(-0.25em); }
.rtv .rtv-doc .rtv-index { margin: 0.25em 0 0.5em; }
.rtv .rtv-doc .rtv-index a { text-decoration: none; }
.rtv .rtv-doc .rtv-sec { margin: 0.2em 0; }
.rtv .rtv-doc .rtv-ph { color: #6b7280; background: #eef2f6; border-radius: 2px; }
.rtv .rtv-doc .rtv-bm { display: inline; }
.rtv .rtv-doc ruby rt { font-size: 50%; }
.rtv .rtv-doc .rtv-fnref { font-size: 62%; vertical-align: super; line-height: 0; }
.rtv .rtv-doc .rtv-fnref a { color: inherit; text-decoration: none; padding: 0 0.1em; }
.rtv .rtv-doc .rtv-fnref a:hover, .rtv .rtv-doc .rtv-fnback:hover { text-decoration: underline; }
.rtv .rtv-doc .rtv-fnback { color: inherit; text-decoration: none; font-weight: 700; margin-right: 0.35em; }
.rtv .rtv-doc .rtv-note { font-size: 10pt; }
.rtv .rtv-doc .rtv-notes { margin-top: 1.5em; padding-top: 0.75em; border-top: 0.75pt solid #94a3b8; font-size: 10pt; }
.rtv .rtv-doc .rtv-notes-title { font: 700 11pt/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; margin-bottom: 0.4em; color: #334155; }
.rtv .rtv-doc .rtv-notes .rtv-note { margin-bottom: 0.35em; }
.rtv .rtv-doc .rtv-hdr, .rtv .rtv-doc .rtv-ftr { font-size: 10pt; }

/* tables */
.rtv .rtv-doc .rtv-tbl { border-collapse: collapse; border-spacing: 0; table-layout: auto; max-width: 100%; }
.rtv .rtv-doc .rtv-td { padding: 0.05cm 0.1cm; vertical-align: top; text-align: start; }
.rtv .rtv-doc .rtv-td > .rtv-p:only-child { min-height: 1em; }

/* frames, images, shapes */
.rtv .rtv-doc .rtv-fr { display: block; max-width: 100%; box-sizing: border-box; position: relative; }
.rtv .rtv-doc .rtv-fr-inl { display: inline-block; vertical-align: baseline; text-indent: 0; }
.rtv .rtv-doc .rtv-fr-fl { float: left; margin: 0 0.3cm 0.15cm 0; clear: left; }
.rtv .rtv-doc .rtv-fr-fr { float: right; margin: 0 0 0.15cm 0.3cm; clear: right; }
.rtv .rtv-doc .rtv-fr-bc { margin-left: auto; margin-right: auto; }
.rtv .rtv-doc .rtv-fr-br { margin-left: auto; }
.rtv .rtv-doc .rtv-fr-pg { position: absolute; left: var(--rtv-x, 0); top: var(--rtv-y, 0); max-width: none; }
.rtv .rtv-doc .rtv-fr-bg { z-index: -1; }
.rtv .rtv-doc .rtv-fr-abs { position: absolute; max-width: none; }
.rtv .rtv-doc .rtv-fr-img { aspect-ratio: var(--rtv-ar, auto); height: auto; }
.rtv .rtv-doc .rtv-fr-abs.rtv-fr-img { aspect-ratio: auto; }
.rtv .rtv-doc .rtv-img { display: block; width: 100%; height: 100%; object-fit: fill; }
.rtv .rtv-doc .rtv-img:not([src]) { background: repeating-linear-gradient(45deg, #eef2f6 0 8px, #f8fafc 8px 16px); min-height: 2em; }
.rtv .rtv-doc .rtv-img.is-bad { background: #f1f5f9; }
.rtv .rtv-doc .rtv-fr-tb { height: auto; }
.rtv .rtv-doc .rtv-tb { min-height: var(--rtv-h, 0); }
.rtv .rtv-doc .rtv-fr-ph { min-height: var(--rtv-h, 3em); background: #f1f5f9; border: 1px dashed #94a3b8; display: flex; align-items: center; justify-content: center; text-align: center; }
.rtv .rtv-doc .rtv-fr-inl.rtv-fr-ph { display: inline-flex; }
.rtv .rtv-doc .rtv-obj { font: 600 10px/1.3 system-ui, sans-serif; color: #64748b; padding: 0.4em; }
.rtv .rtv-doc .rtv-shape { display: flex; overflow: visible; }
.rtv .rtv-doc .rtv-fr-inl.rtv-shape { display: inline-flex; }
.rtv .rtv-doc .rtv-shape-text { flex: 1; display: flex; flex-direction: column; justify-content: center; padding: 0.125cm 0.25cm; min-width: 0; }
.rtv .rtv-doc .rtv-line { display: block; width: 100%; height: 100%; overflow: visible; }
.rtv .rtv-doc .rtv-fr-grp { display: block; }

/* comments, tracked changes, search, speech */
.rtv .rtv-doc .rtv-cmt {
    display: inline-flex; align-items: center; justify-content: center; min-width: 1.35em; height: 1.35em; padding: 0 0.2em; margin: 0 0.15em; box-sizing: border-box;
    border-radius: 0.3em 0.3em 0.3em 0; background: #f2c94c; color: #3a2c00; font: 800 9px/1 system-ui, sans-serif; vertical-align: super; cursor: pointer; text-indent: 0;
}
.rtv .rtv-doc .rtv-cmt:hover, .rtv .rtv-doc .rtv-cmt.is-flash { background: #e0a800; }
.rtv .rtv-doc .rtv-crange { background: rgba(242, 201, 76, 0.32); color: inherit; }
.rtv .rtv-doc.no-cmts .rtv-cmt { display: none; }
.rtv .rtv-doc.no-cmts .rtv-crange { background: none; }
.rtv .rtv-doc .rtv-del { display: none; }
.rtv .rtv-doc .rtv-ins { text-decoration: none; }
.rtv .rtv-doc.show-changes .rtv-del { display: inline; color: #c23b3b; text-decoration: line-through; }
.rtv .rtv-doc.show-changes .rtv-ins { color: #b45309; text-decoration: underline; text-decoration-color: #b45309; }
.rtv .rtv-doc .rtv-hit { background: #fde68a; color: inherit; border-radius: 2px; box-shadow: 0 0 0 1px rgba(217, 119, 6, 0.25); }
.rtv .rtv-doc .rtv-hit.is-cur { background: #f59e0b; box-shadow: 0 0 0 2px #b45309; }
.rtv .rtv-doc .is-speaking { background: rgba(51, 153, 204, 0.16); border-radius: 3px; }
.rtv .rtv-doc .is-flash { animation: rtvFlash 1.4s ease-out; }
@keyframes rtvFlash { 0%, 30% { background-color: rgba(51, 153, 204, 0.3); } 100% { background-color: transparent; } }

/* ---------- content ---------- */
.rtv .rtv-info { margin-top: 2rem; display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.25rem; }
.rtv .rtv-info > * { min-width: 0; }
.rtv .rtv-info-card { background: var(--bg-elevated, #fff); border: 1px solid var(--rtv-line); border-radius: var(--radius-md, 12px); padding: 1.4rem 1.5rem; }
.rtv .rtv-info-card h2 { display: flex; align-items: center; gap: 0.55rem; margin: 0 0 0.9rem; font-size: 1.25rem; color: var(--rtv-text-1); }
.rtv .rtv-info-card h2 svg { width: 22px; height: 22px; color: var(--rtv-accent); flex-shrink: 0; }
.rtv .rtv-info-card h3 { margin: 1.2rem 0 0.5rem; font-size: 1.05rem; color: var(--rtv-text-1); }
.rtv .rtv-info-card p, .rtv .rtv-info-card li { color: var(--rtv-text-2); line-height: 1.65; font-size: 0.97rem; }
.rtv .rtv-info-card p { margin: 0.8rem 0 0; }
.rtv .rtv-info-card h2 + p { margin-top: 0; }
.rtv .rtv-info a { color: var(--rtv-accent-strong); font-weight: 500; }
[data-theme="dark"] .rtv .rtv-info a { color: var(--rtv-accent); }
.rtv .rtv-steps { margin: 0; padding-left: 1.3rem; display: grid; gap: 0.45rem; }
.rtv .rtv-features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.rtv .rtv-feature { padding: 0.9rem 1rem; border-radius: 12px; border: 1px solid var(--rtv-line); background: var(--rtv-open); min-width: 0; }
.rtv .rtv-feature > svg { width: 20px; height: 20px; color: var(--rtv-accent); }
.rtv .rtv-info-card .rtv-feature h3 { margin: 0.35rem 0 0.2rem; font-size: 0.95rem; }
.rtv .rtv-info-card .rtv-feature p { margin: 0; font-size: 0.88rem; line-height: 1.55; }
.rtv .rtv-table-wrap { overflow-x: auto; border: 1px solid var(--rtv-line); border-radius: 10px; margin-top: 0.9rem; }
.rtv .rtv-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 520px; margin: 0; }
.rtv .rtv-table th, .rtv .rtv-table td { padding: 0.6rem 0.8rem; text-align: left; border-bottom: 1px solid var(--rtv-line); color: var(--rtv-text-2); vertical-align: top; }
.rtv .rtv-table th { background: var(--rtv-sunk); color: var(--rtv-text-1); font-weight: 700; font-size: 0.82rem; }
.rtv .rtv-table tr:last-child td { border-bottom: none; }
.rtv .rtv-table td:first-child { font-weight: 700; color: var(--rtv-text-1); white-space: nowrap; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
    .rtv .rtv-work { grid-template-columns: minmax(0, 1fr); }
    .rtv .rtv-side { height: auto; max-height: 340px; min-height: 0; }
    .rtv .rtv-work.no-side .rtv-side { display: none; }
    .rtv .rtv-work:not(.no-side) .rtv-side { order: 0; }
}
@media (max-width: 600px) {
    .rtv.tool-container { padding: 1.1rem 16px; }
    .rtv .tool-title { font-size: 1.55rem; }
    .rtv .rtv-title-icon { width: 46px; height: 46px; border-radius: 13px; }
    .rtv .rtv-title-icon svg { width: 25px; height: 25px; }
    .rtv .tool-description { font-size: 0.98rem; }
    .rtv .rtv-card { padding: 0.85rem; border-radius: 16px; }
    .rtv .rtv-drop { min-height: 160px; }
    .rtv .rtv-hint-text { display: none; }
    .rtv .rtv-sample-row .rtv-seg-btn { flex: 1; justify-content: center; }
    .rtv .rtv-filehead #rtvNew span { display: none; }
    .rtv .rtv-segs { flex: 1; }
    .rtv .rtv-segs button { flex: 1; }
    .rtv .rtv-search { min-width: 0; flex-basis: 100%; order: 3; }
    .rtv .rtv-quick-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .rtv .rtv-voice-grid { grid-template-columns: minmax(0, 1fr); }
    .rtv .rtv-adv-head { padding: 0.55rem 0.75rem; }
    .rtv .rtv-adv-hint { display: none; }
    .rtv .rtv-tools { gap: 0.1rem; }
    .rtv .rtv-tool-sep { display: none; }
    .rtv .rtv-tools .rtv-icon-btn { width: 32px; }
    .rtv .rtv-zoom-val { min-width: 48px; }
    .rtv .rtv-page-input { width: 46px; }
    .rtv .rtv-stage { height: 70vh; min-height: 360px; border-radius: 12px; }
    .rtv .rtv-doc .rtv-pages { padding: 12px 0 18px; }
    .rtv .rtv-doc .rtv-page::after { display: none; }
    .rtv .rtv-doc.is-reading .rtv-page { padding: 0 1rem !important; }
    .rtv .rtv-doc.is-reading .rtv-page:first-child { padding-top: 1.25rem !important; }
    .rtv .rtv-doc.is-reading .rtv-notes-end { padding: 0 1rem 1.5rem; }
    .rtv .rtv-doc.is-reading .rtv-fr-fl, .rtv .rtv-doc.is-reading .rtv-fr-fr { max-width: 45%; }
    .rtv .rtv-doc.is-reading .rtv-tbl { display: block; overflow-x: auto; }
    .rtv .rtv-actionbar .rtv-go { flex: 1 1 100%; margin-left: 0; order: -1; }
    .rtv .rtv-actionbar .rtv-btn-ghost { flex: 1 1 calc(33% - 0.5rem); padding: 0.45rem 0.4rem; }
    .rtv .rtv-features { grid-template-columns: minmax(0, 1fr); }
    .rtv .rtv-info-card { padding: 1.1rem; }
    .rtv .rtv-stages .rtv-lbl-s { display: none; }
    .rtv .rtv-pstage-line { width: 20px; margin: 0 0.3rem; }
}

/* ============================================================
   RTF additions: recent files, source view, headers in the
   margins, pictures, shapes, tab stops.
   ============================================================ */
.rtv .rtv-small { margin: 0.6rem 0 0; font-size: 0.78rem; line-height: 1.5; color: var(--rtv-muted); }
.rtv .rtv-small a { color: var(--rtv-accent-strong); font-weight: 600; }
[data-theme="dark"] .rtv .rtv-small a { color: var(--rtv-accent); }
.rtv .rtv-caption { display: inline-flex; align-items: center; gap: 0.35rem; margin: 0 0 0.45rem; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--rtv-muted); }
.rtv .rtv-caption svg { width: 14px; height: 14px; }
.rtv .rtv-recent { margin-top: 1rem; padding-top: 0.85rem; border-top: 1px solid var(--rtv-line); }
.rtv .rtv-recent-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.rtv .rtv-recent-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.4rem; }
.rtv .rtv-recent-list li { min-width: 0; margin: 0; padding: 0; }
.rtv .rtv-recent-list button {
    display: flex; flex-direction: column; align-items: flex-start; gap: 0.1rem; width: 100%; min-width: 0; box-sizing: border-box; margin: 0;
    padding: 0.5rem 0.7rem; border-radius: 10px; border: 1px solid var(--rtv-line); background: var(--rtv-open); color: var(--rtv-text-1); text-align: left; cursor: pointer;
}
.rtv .rtv-recent-list button:hover { border-color: var(--rtv-accent-line); }
.rtv .rtv-recent-name { font-size: 0.86rem; font-weight: 600; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rtv .rtv-recent-meta { font-size: 0.74rem; color: var(--rtv-muted); }
.rtv .rtv-info-card code { font: 600 0.86em var(--rtv-mono); padding: 0.05rem 0.35rem; border-radius: 5px; background: var(--rtv-sunk); border: 1px solid var(--rtv-line); color: var(--rtv-text-1); }
.rtv .rtv-side-tabs button .rtv-count { flex-shrink: 0; }
.rtv .rtv-warn-row { display: flex; gap: 0.4rem; align-items: flex-start; margin: 0 0.25rem 0.5rem; font-size: 0.78rem; line-height: 1.45; color: var(--rtv-text-2); }
.rtv .rtv-warn-row svg { width: 15px; height: 15px; flex-shrink: 0; color: var(--rtv-warn); margin-top: 1px; }
.rtv .rtv-note.is-warn { background: rgba(180, 83, 9, 0.07); border-color: rgba(180, 83, 9, 0.3); }
.rtv .rtv-note.is-warn > svg { color: var(--rtv-warn); }

/* page parts */
.rtv .rtv-doc .rtv-page > .rtv-hdr, .rtv .rtv-doc .rtv-page > .rtv-ftr { position: absolute; left: var(--ml, 72pt); right: var(--mr, 72pt); z-index: 1; }
.rtv .rtv-doc .rtv-page > .rtv-hdr { top: var(--hy, 36pt); }
.rtv .rtv-doc .rtv-page > .rtv-ftr { bottom: var(--fy, 36pt); }
.rtv .rtv-doc .rtv-hdr .rtv-p, .rtv .rtv-doc .rtv-ftr .rtv-p { min-height: 0; }
.rtv .rtv-doc .rtv-sec { margin: 0; }
.rtv .rtv-doc .rtv-sec-cols { column-fill: balance; }
.rtv .rtv-doc .rtv-pb-mark { display: none; }

/* text details */
.rtv .rtv-doc .rtv-p { tab-size: var(--rtv-tab, 36pt); -moz-tab-size: var(--rtv-tab, 36pt); }
.rtv .rtv-doc .rtv-tab { white-space: pre; }
.rtv .rtv-doc .rtv-empty::before { content: "\200b"; }
.rtv .rtv-cm-n.rtv-cm-fn { background: var(--rtv-accent); color: #fff; }
.rtv .rtv-doc .rtv-lbl { display: inline-block; text-indent: 0; white-space: pre; font-style: normal; text-decoration: none; }
.rtv .rtv-doc .rtv-lbl-hang { box-sizing: border-box; padding-right: 0.25em; }
.rtv .rtv-doc .rtv-lead-line { border-bottom: 1px solid currentColor; margin: 0 0.2em; transform: translateY(-0.2em); opacity: 0.7; }
.rtv .rtv-doc .rtv-lead-hyph { border-bottom: 1.5px dashed currentColor; margin: 0 0.3em; transform: translateY(-0.25em); opacity: 0.6; }
.rtv .rtv-doc .rtv-up { position: relative; }
.rtv .rtv-doc a.rtv-a { color: inherit; }
.rtv .rtv-doc a.rtv-a:hover { text-decoration-thickness: 2px; }
.rtv .rtv-doc .rtv-bm { display: inline; }

/* pictures, placeholders, shapes */
.rtv .rtv-doc .rtv-img { display: inline-block; vertical-align: bottom; max-width: 100%; height: auto; object-fit: fill; text-indent: 0; }
.rtv .rtv-doc .rtv-img:not([src]) { background: repeating-linear-gradient(45deg, #eef2f6 0 8px, #f8fafc 8px 16px); }
.rtv .rtv-doc .rtv-ph {
    display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.2em; vertical-align: bottom; max-width: 100%; box-sizing: border-box;
    min-width: 6em; min-height: 3em; padding: 0.4em; background: #f1f5f9; border: 1px dashed #94a3b8; border-radius: 3px; text-indent: 0; text-align: center;
    font: 600 10px/1.3 system-ui, -apple-system, "Segoe UI", sans-serif; color: #64748b; overflow: hidden;
}
.rtv .rtv-doc .rtv-ph svg { width: 18px; height: 18px; }
.rtv .rtv-doc .rtv-shp { display: inline-block; vertical-align: bottom; max-width: 100%; box-sizing: border-box; text-indent: 0; }
.rtv .rtv-doc .rtv-shp-fl { float: left; margin: 0 0.3cm 0.15cm 0; }
.rtv .rtv-doc .rtv-shp-fr { float: right; margin: 0 0 0.15cm 0.3cm; }
.rtv .rtv-doc .rtv-shp-blk { display: block; margin: 0.15cm 0; }
.rtv .rtv-doc .rtv-shp-txt { padding: 0.125cm 0.25cm; border: 0.75pt solid #000; text-align: start; }
.rtv .rtv-doc .rtv-shp-txt.no-line { border-color: transparent; }
.rtv .rtv-doc .rtv-shp > .rtv-img { display: block; width: 100%; }
.rtv .rtv-doc .rtv-tbl { border-collapse: collapse; }
.rtv .rtv-doc .rtv-tbl .rtv-tbl { margin: 0; }
.rtv .rtv-doc .rtv-td { overflow-wrap: anywhere; }
.rtv .rtv-doc.is-reading .rtv-tbl { max-width: 100%; }

/* ---------- source view (virtualised) ---------- */
.rtv .rtv-src { position: relative; min-height: 100%; background: var(--rtv-card); color: var(--rtv-text-1); font: 12.5px/20px var(--rtv-mono); --lnw: 5ch; }
.rtv .rtv-src-sizer { position: relative; width: max-content; min-width: 100%; }
.rtv .rtv-src-rows { position: absolute; left: 0; top: 0; min-width: 100%; }
.rtv .rtv-src-row { display: flex; height: 20px; white-space: pre; min-width: 100%; }
.rtv .rtv-src-ln {
    position: sticky; left: 0; z-index: 1; flex: none; width: var(--lnw); box-sizing: content-box; padding: 0 10px 0 8px; text-align: right;
    color: var(--rtv-muted); background: var(--rtv-sunk); border-right: 1px solid var(--rtv-line); user-select: none; -webkit-user-select: none;
}
.rtv .rtv-src-code { padding: 0 14px; }
.rtv .rtv-src-row.is-cont .rtv-src-ln { color: transparent; }
.rtv .rtv-src.is-wrap .rtv-src-sizer { width: 100%; }
.rtv .rtv-src .t-w { color: #1d64a8; }
.rtv .rtv-src .t-n { color: #2f855a; }
.rtv .rtv-src .t-b { color: #c23b3b; font-weight: 700; }
.rtv .rtv-src .t-e { color: #8b3fb8; }
.rtv .rtv-src .t-s { color: #b45309; font-weight: 700; }
.rtv .rtv-src .t-h { color: #94a3b8; }
.rtv .rtv-src .t-more { color: var(--rtv-muted); font-style: italic; }
[data-theme="dark"] .rtv .rtv-src .t-w { color: #7cc4ef; }
[data-theme="dark"] .rtv .rtv-src .t-n { color: #6ee7a8; }
[data-theme="dark"] .rtv .rtv-src .t-b { color: #fb7185; }
[data-theme="dark"] .rtv .rtv-src .t-e { color: #d8b4fe; }
[data-theme="dark"] .rtv .rtv-src .t-s { color: #fbbf24; }
[data-theme="dark"] .rtv .rtv-src .t-h { color: #64748b; }
.rtv .rtv-src mark.rtv-shit { background: #fde68a; color: inherit; border-radius: 2px; }
.rtv .rtv-src mark.rtv-shit.is-cur { background: #f59e0b; }
[data-theme="dark"] .rtv .rtv-src mark.rtv-shit { background: rgba(253, 230, 138, 0.35); }
[data-theme="dark"] .rtv .rtv-src mark.rtv-shit.is-cur { background: #b45309; color: #fff; }
.rtv .rtv-stage.is-source { background: var(--rtv-card); }

@media (max-width: 600px) {
    .rtv .rtv-recent-list { grid-template-columns: minmax(0, 1fr); }
    .rtv .rtv-src { font-size: 11.5px; }
    .rtv .rtv-segs button span { display: none; }
    .rtv .rtv-segs button[aria-pressed="true"] span { display: inline; }
}

/* ---------- print: only the document (#rtvPrintBox is added to <body> while printing) ---------- */
#rtvPrintBox { display: none; }
@media print {
    body.rtv-printing > *:not(#rtvPrintBox) { display: none !important; }
    body.rtv-printing #rtvPrintBox { display: block !important; color: #000; background: #fff; }
    body.rtv-printing { background: #fff !important; margin: 0 !important; padding: 0 !important; }
    #rtvPrintBox .rtv-pages { zoom: 1 !important; padding: 0 !important; }
    #rtvPrintBox .rtv-page { margin: 0 !important; box-shadow: none !important; break-after: page; page-break-after: always; content-visibility: visible !important; overflow: hidden; }
    #rtvPrintBox .rtv-page:last-child { break-after: auto; page-break-after: auto; }
    #rtvPrintBox .rtv-page::after { display: none !important; }
    #rtvPrintBox .rtv-cmt { display: none !important; }
    #rtvPrintBox .rtv-crange { background: none !important; }
    #rtvPrintBox .rtv-hit { background: none !important; box-shadow: none !important; }
    #rtvPrintBox .rtv-notes-end { display: block !important; }
}