/* ---- shell (shared ConvertICO viewer design system, copied per tool) ---- */
.dtv-root {
    --dtv-accent: #3399cc;
    --dtv-accent-strong: #237a9f;
    --dtv-accent-soft: rgba(51, 153, 204, 0.09);
    --dtv-accent-line: rgba(51, 153, 204, 0.45);
    --dtv-go: #237a9f;
    --dtv-go-hover: #1b6183;
    --dtv-card: var(--bg-elevated, #fff);
    --dtv-sunk: var(--card-tertiary, #f1f5f9);
    --dtv-open: var(--card-secondary, #f8f9fa);
    --dtv-line: var(--border-color, #e2e8f0);
    --dtv-text-1: var(--text-primary, #1e293b);
    --dtv-text-2: var(--text-secondary, #555);
    --dtv-muted: var(--text-muted, #64748b);
    --dtv-warn: #b45309;
    --dtv-red: #c23b3b;
    --dtv-red-soft: rgba(230, 78, 78, 0.08);
    --dtv-red-line: rgba(230, 78, 78, 0.35);
    --dtv-mono: ui-monospace, "Cascadia Mono", SFMono-Regular, Menlo, Consolas, "DejaVu Sans Mono", "Liberation Mono", monospace;
    /* text surface */
    --dtv-bg: #ffffff;
    --dtv-fg: #1f2937;
    --dtv-gut: #f6f8fa;
    --dtv-gut-t: #94a3b8;
    --dtv-gut-line: #e5e7eb;
    --dtv-ws: #c0c7d2;
    --dtv-ts: #0f7a8a;
    --dtv-e: #c62828;
    --dtv-w: #b45309;
    --dtv-i: #1d6fa5;
    --dtv-d: #8a94a6;
}
[data-theme="dark"] .dtv-root {
    --dtv-accent: #60a5fa;
    --dtv-accent-strong: #93c5fd;
    --dtv-accent-soft: rgba(96, 165, 250, 0.12);
    --dtv-accent-line: rgba(96, 165, 250, 0.45);
    --dtv-go: #2563eb;
    --dtv-go-hover: #1d4ed8;
    --dtv-sunk: #172033;
    --dtv-open: #1a2438;
    --dtv-warn: #fbbf24;
    --dtv-red: #f87171;
    --dtv-red-soft: rgba(248, 113, 113, 0.1);
    --dtv-red-line: rgba(248, 113, 113, 0.4);
    --dtv-bg: #0f172a;
    --dtv-fg: #e2e8f0;
    --dtv-gut: #131c30;
    --dtv-gut-t: #64748b;
    --dtv-gut-line: #24314a;
    --dtv-ws: #475569;
    --dtv-ts: #5eead4;
    --dtv-e: #f87171;
    --dtv-w: #fbbf24;
    --dtv-i: #7dd3fc;
    --dtv-d: #7c8aa3;
}

.dtv-root.tool-container { max-width: 1100px; margin: 0 auto; padding: 2rem; }
.dtv-root [hidden] { display: none !important; }
.dtv-root .dtv-main { background: none; border: none; box-shadow: none; border-radius: 0; overflow: visible; padding: 0; }
.dtv-root button { font: inherit; }
.dtv-root code { font-family: var(--dtv-mono); font-size: 0.86em; padding: 0.05rem 0.35rem; border-radius: 5px; background: var(--dtv-sunk); }
.dtv-root kbd {
    display: inline-block; padding: 0.05rem 0.4rem; border-radius: 5px; border: 1px solid var(--dtv-line); border-bottom-width: 2px;
    background: var(--dtv-card); font: 600 0.78em var(--dtv-mono); color: var(--dtv-text-1);
}
.dtv-root .dtv-muted { color: var(--dtv-muted); font-weight: 500; }
.dtv-root :focus-visible { outline: 3px solid var(--dtv-accent-line); outline-offset: 2px; }

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

/* ---------- error ---------- */
.dtv-root .dtv-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(--dtv-red-line); background: var(--dtv-red-soft); color: var(--dtv-text-1); }
.dtv-root .dtv-error > svg { width: 20px; height: 20px; color: #e64e4e; flex-shrink: 0; margin-top: 2px; }
.dtv-root .dtv-error > div { flex: 1; min-width: 0; }
.dtv-root .dtv-error p { margin: 0; font-size: 0.92rem; line-height: 1.55; overflow-wrap: anywhere; }
.dtv-root .dtv-error p + p { margin-top: 0.3rem; color: var(--dtv-muted); font-size: 0.86rem; }
.dtv-root .dtv-error a { color: var(--dtv-red); font-weight: 600; }
.dtv-root .dtv-error-actions { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.55rem; }
.dtv-root .dtv-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(--dtv-muted); cursor: pointer; padding: 0; margin: 0; }
.dtv-root .dtv-x:hover { background: rgba(100, 116, 139, 0.12); color: var(--dtv-text-1); }
.dtv-root .dtv-x svg { width: 17px; height: 17px; }

/* ---------- cards ---------- */
.dtv-root .dtv-card { background: var(--dtv-card); border: 1px solid var(--dtv-line); border-radius: 20px; padding: 1.25rem; box-shadow: var(--shadow-sm); margin-bottom: 1.25rem; min-width: 0; }
.dtv-root .dtv-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(--dtv-muted); }
.dtv-root .dtv-caption svg { width: 14px; height: 14px; }

/* ---------- buttons ---------- */
.dtv-root .dtv-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;
}
.dtv-root .dtv-btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.dtv-root .dtv-go { background: var(--dtv-go); color: #fff; }
.dtv-root .dtv-go:hover:not(:disabled) { background: var(--dtv-go-hover); color: #fff; }
.dtv-root .dtv-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.dtv-root .dtv-btn-lg { min-height: 50px; padding: 0.65rem 1.5rem; font-size: 1rem; }
.dtv-root .dtv-btn-sm { min-height: 36px; padding: 0.4rem 0.8rem; font-size: 0.85rem; border-radius: 10px; }
.dtv-root .dtv-btn-sm svg { width: 16px; height: 16px; }
.dtv-root .dtv-btn-ghost { background: var(--dtv-sunk); color: var(--dtv-text-2); border-color: var(--dtv-line); }
.dtv-root .dtv-btn-ghost:hover:not(:disabled) { color: var(--dtv-text-1); border-color: var(--dtv-accent-line); }
.dtv-root .dtv-text-btn { display: inline-flex; align-items: center; gap: 0.35rem; width: auto; padding: 0.35rem 0.6rem; margin: 0; border: none; border-radius: 8px; background: none; color: var(--dtv-accent-strong); font-size: 0.85rem; font-weight: 600; cursor: pointer; white-space: nowrap; text-decoration: none; }
[data-theme="dark"] .dtv-root .dtv-text-btn { color: var(--dtv-accent); }
.dtv-root .dtv-text-btn:hover:not(:disabled) { background: var(--dtv-accent-soft); }
.dtv-root .dtv-text-btn svg { width: 15px; height: 15px; }
.dtv-root .dtv-icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; padding: 0; margin: 0; border: none; border-radius: 7px; background: none; color: var(--dtv-text-2); cursor: pointer; flex-shrink: 0; }
.dtv-root .dtv-icon-btn:hover:not(:disabled) { background: var(--dtv-accent-soft); color: var(--dtv-text-1); }
.dtv-root .dtv-icon-btn:disabled { opacity: 0.35; cursor: default; }
.dtv-root .dtv-icon-btn svg { width: 16px; height: 16px; }
.dtv-root .dtv-seg-btn { display: inline-flex; align-items: center; gap: 0.4rem; width: auto; min-height: 36px; padding: 0.35rem 0.85rem; margin: 0; border-radius: 999px; border: 1px solid var(--dtv-line); background: var(--dtv-card); color: var(--dtv-text-2); font-size: 0.85rem; font-weight: 600; cursor: pointer; }
.dtv-root .dtv-seg-btn svg { width: 15px; height: 15px; color: var(--dtv-accent); }
.dtv-root .dtv-seg-btn:hover { border-color: var(--dtv-accent-line); color: var(--dtv-text-1); }
.dtv-root .dtv-chip { display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem; width: auto; min-height: 34px; padding: 0.3rem 0.55rem; margin: 0; border-radius: 9px; border: 1px solid var(--dtv-line); background: var(--dtv-card); color: var(--dtv-text-2); font-size: 0.8rem; font-weight: 700; cursor: pointer; min-width: 0; }
.dtv-root .dtv-chip:hover { border-color: var(--dtv-accent-line); }
.dtv-root .dtv-chip.is-active { border-color: var(--dtv-accent); background: var(--dtv-accent-soft); color: var(--dtv-accent-strong); }
[data-theme="dark"] .dtv-root .dtv-chip.is-active { color: var(--dtv-accent); }
.dtv-root .dtv-chip svg { width: 15px; height: 15px; }
.dtv-root .dtv-quick { display: grid; gap: 0.35rem; }
.dtv-root .dtv-quick > * { min-width: 0; }
.dtv-root .dtv-quick-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.dtv-root .dtv-quick-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.dtv-root .dtv-quick-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.dtv-root .dtv-sub { margin: 0.75rem 0 0.35rem; font-size: 0.78rem; font-weight: 700; color: var(--dtv-text-2); }
.dtv-root .dtv-sub:first-child { margin-top: 0.2rem; }

/* ---------- upload ---------- */
.dtv-root .dtv-drop {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.35rem; text-align: center; min-height: 180px; padding: 1.5rem 1.25rem;
    border-radius: 16px; border: 2px dashed var(--dtv-accent-line); background: var(--dtv-accent-soft); cursor: pointer; color: var(--dtv-muted); font-size: 0.86rem; line-height: 1.5;
    transition: border-color 0.15s, background 0.15s; box-sizing: border-box; margin: 0;
}
.dtv-root .dtv-drop:hover, .dtv-root .dtv-drop.is-drag { border-color: var(--dtv-accent); background: rgba(51, 153, 204, 0.14); }
.dtv-root .dtv-drop:focus-within { outline: 3px solid var(--dtv-accent-soft); }
.dtv-root .dtv-drop strong { font-size: 1.08rem; color: var(--dtv-text-1); }
.dtv-root .dtv-drop-link { color: var(--dtv-accent-strong); text-decoration: underline; text-underline-offset: 3px; }
[data-theme="dark"] .dtv-root .dtv-drop-link { color: var(--dtv-accent); }
.dtv-root .dtv-drop-icon { width: 58px; height: 58px; border-radius: 16px; display: flex; align-items: center; justify-content: center; margin-bottom: 0.35rem; background: var(--dtv-card); color: var(--dtv-accent); border: 1px solid var(--dtv-line); }
.dtv-root .dtv-drop-icon svg { width: 28px; height: 28px; }
.dtv-root .dtv-types { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.3rem; margin-top: 0.35rem; max-width: 560px; }
.dtv-root .dtv-types span { padding: 0.05rem 0.45rem; border-radius: 6px; background: var(--dtv-card); border: 1px solid var(--dtv-line); font: 600 0.72rem var(--dtv-mono); color: var(--dtv-text-2); }
.dtv-root .dtv-textarea { display: block; width: 100%; min-height: 130px; max-height: 60vh; resize: vertical; box-sizing: border-box; margin: 0; padding: 0.75rem 0.85rem; border-radius: 12px; border: 1px solid var(--dtv-line); background: var(--input-bg, #fff); color: var(--dtv-text-1); font: 0.86rem/1.55 var(--dtv-mono); tab-size: 4; }
.dtv-root .dtv-textarea:focus { outline: none; border-color: var(--dtv-accent); box-shadow: 0 0 0 3px var(--dtv-accent-soft); }
.dtv-root .dtv-kbd-hint { margin-left: auto; font-size: 0.76rem; color: var(--dtv-muted); }
.dtv-root .dtv-samples { margin-top: 1rem; }
.dtv-root .dtv-sample-row { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.dtv-root .dtv-under { display: flex; flex-wrap: wrap; align-items: center; gap: 0.45rem 0.6rem; margin-top: 1rem; }
.dtv-root .dtv-pill { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.22rem 0.65rem; border-radius: 999px; background: var(--dtv-sunk); border: 1px solid var(--dtv-line); font-size: 0.78rem; font-weight: 600; color: var(--dtv-text-2); }
.dtv-root .dtv-pill svg { width: 14px; height: 14px; color: var(--dtv-accent); }

/* page-wide drop overlay */
.dtv-root .dtv-overlay { position: fixed; inset: 0; z-index: 10004; display: flex; align-items: center; justify-content: center; background: rgba(15, 23, 42, 0.45); pointer-events: none; }
.dtv-root .dtv-overlay-box { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; padding: 2rem 2.5rem; border-radius: 20px; border: 2px dashed var(--dtv-accent); background: var(--dtv-card); color: var(--dtv-text-1); font-weight: 700; font-size: 1.1rem; }
.dtv-root .dtv-overlay-box svg { width: 36px; height: 36px; color: var(--dtv-accent); }

/* ---------- progress ---------- */
.dtv-root .dtv-prog { padding: 1rem 1.1rem; }
.dtv-root .dtv-prog-top { display: flex; align-items: center; gap: 0.9rem; flex-wrap: wrap; }
.dtv-root .dtv-prog-top .dtv-btn { margin-left: auto; }
.dtv-root .dtv-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"] .dtv-root .dtv-loader { --cico-outer-soft: rgba(242, 83, 78, 0.22); --cico-mid-soft: rgba(49, 174, 119, 0.22); }
.dtv-root .dtv-loader circle { fill: none; stroke-width: 72; transform-box: fill-box; transform-origin: center; }
.dtv-root .dtv-loader .bp { stroke: var(--cico-outer-soft); }
.dtv-root .dtv-loader .gp { stroke: var(--cico-mid-soft); }
.dtv-root .dtv-loader .b { stroke: var(--cico-outer); stroke-linecap: round; stroke-dasharray: 35.3 100; animation: dtvSpinL 1.3s linear infinite; }
.dtv-root .dtv-loader .g { stroke: var(--cico-mid); stroke-linecap: round; stroke-dasharray: 75.8 100; animation: dtvSpinR 2.1s linear infinite; }
.dtv-root .dtv-loader .r { stroke: var(--cico-inner); animation: dtvBreathe 1.3s ease-in-out infinite; }
@keyframes dtvSpinL { from { transform: rotate(117deg); } to { transform: rotate(-243deg); } }
@keyframes dtvSpinR { from { transform: rotate(36deg); } to { transform: rotate(396deg); } }
@keyframes dtvBreathe { 50% { transform: scale(0.9); } }
@media (prefers-reduced-motion: reduce) {
    .dtv-root .dtv-loader .b { animation-duration: 4s; }
    .dtv-root .dtv-loader .g { animation-duration: 6s; }
    .dtv-root .dtv-loader .r { animation: none; }
}
.dtv-root .dtv-stages { display: flex; align-items: center; flex-wrap: wrap; row-gap: 0.4rem; }
.dtv-root .dtv-stage { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.8rem; font-weight: 700; color: var(--dtv-muted); }
.dtv-root .dtv-dot { display: inline-flex; align-items: center; justify-content: center; padding: 6px; border-radius: 50%; background: var(--dtv-card); border: 1px solid var(--dtv-line); color: var(--dtv-muted); }
.dtv-root .dtv-dot svg { width: 18px; height: 18px; display: block; }
.dtv-root .dtv-stage.active { color: var(--dtv-text-1); }
.dtv-root .dtv-stage.active .dtv-dot { background: var(--dtv-go); border-color: var(--dtv-go); color: #fff; }
.dtv-root .dtv-stage.done .dtv-dot { background: #339966; border-color: #339966; color: #fff; }
.dtv-root .dtv-stage-line { width: 28px; height: 2px; margin: 0 0.5rem; border-radius: 2px; background: var(--dtv-line); flex-shrink: 0; }
.dtv-root .dtv-stage-line.done { background: #339966; }
.dtv-root .dtv-prog-head { display: flex; align-items: baseline; justify-content: space-between; gap: 0.75rem; margin-top: 0.85rem; }
.dtv-root .dtv-prog-text { font-size: 0.86rem; color: var(--dtv-text-2); min-width: 0; overflow-wrap: anywhere; }
.dtv-root .dtv-prog-pct { font-size: 0.95rem; font-weight: 800; color: var(--dtv-text-1); font-variant-numeric: tabular-nums; }
.dtv-root .dtv-bar { position: relative; height: 8px; margin-top: 0.5rem; border-radius: 999px; background: var(--dtv-line); overflow: hidden; }
.dtv-root .dtv-bar-fill { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--dtv-go); border-radius: 999px; transition: width 0.2s; }

/* ---------- viewer head ---------- */
.dtv-root .dtv-filehead { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; }
.dtv-root .dtv-fileicon { width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--dtv-accent-soft); color: var(--dtv-accent); }
.dtv-root .dtv-fileicon svg { width: 22px; height: 22px; }
.dtv-root .dtv-filetext { flex: 1; min-width: 0; }
.dtv-root .dtv-filetext strong { display: block; font-size: 1.02rem; color: var(--dtv-text-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-filetext span { display: block; font-size: 0.82rem; color: var(--dtv-muted); }
.dtv-root .dtv-badges { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.dtv-root .dtv-badge { display: inline-flex; align-items: center; gap: 0.35rem; width: auto; margin: 0; padding: 0.25rem 0.7rem; border-radius: 999px; font-size: 0.8rem; font-weight: 700; white-space: nowrap; background: var(--dtv-accent-soft); border: 1px solid var(--dtv-accent-line); color: var(--dtv-accent-strong); cursor: pointer; }
[data-theme="dark"] .dtv-root .dtv-badge { color: var(--dtv-accent); }
.dtv-root .dtv-badge svg { width: 14px; height: 14px; }
.dtv-root .dtv-badge.is-plain { cursor: default; background: var(--dtv-sunk); border-color: var(--dtv-line); color: var(--dtv-text-2); }
.dtv-root .dtv-badge.is-edit { cursor: default; background: rgba(217, 119, 6, 0.1); border-color: rgba(217, 119, 6, 0.4); color: var(--dtv-warn); }

/* notes */
.dtv-root .dtv-notes { display: grid; gap: 0.5rem; margin-top: 0.75rem; }
.dtv-root .dtv-note { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.65rem 0.9rem; border-radius: 12px; font-size: 0.86rem; line-height: 1.5; color: var(--dtv-text-1); background: rgba(51, 153, 204, 0.08); border: 1px solid rgba(51, 153, 204, 0.3); }
.dtv-root .dtv-note.is-warn { background: rgba(217, 119, 6, 0.08); border-color: rgba(217, 119, 6, 0.35); }
.dtv-root .dtv-note > svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; color: var(--dtv-accent); }
.dtv-root .dtv-note.is-warn > svg { color: var(--dtv-warn); }
.dtv-root .dtv-note > div { flex: 1; min-width: 0; }
.dtv-root .dtv-note p { margin: 0; overflow-wrap: anywhere; }
.dtv-root .dtv-note a { color: var(--dtv-accent-strong); font-weight: 600; }
[data-theme="dark"] .dtv-root .dtv-note a { color: var(--dtv-accent); }
.dtv-root .dtv-alts { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.45rem; align-items: center; }

/* stats */
.dtv-root .dtv-stats { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.75rem; }
.dtv-root .dtv-stat { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.22rem 0.6rem; border-radius: 999px; background: var(--dtv-sunk); border: 1px solid var(--dtv-line); font-size: 0.78rem; color: var(--dtv-text-2); max-width: 100%; }
.dtv-root .dtv-stat svg { width: 14px; height: 14px; color: var(--dtv-accent); flex-shrink: 0; }
.dtv-root .dtv-stat strong { color: var(--dtv-text-1); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.dtv-root .dtv-search input::-webkit-search-cancel-button { -webkit-appearance: none; appearance: none; display: none; }

/* ---------- toolbar ---------- */
.dtv-root .dtv-toolbar { position: relative; display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-top: 1rem; }
.dtv-root .dtv-search { flex: 1; min-width: 260px; display: flex; align-items: center; gap: 0.2rem; height: 42px; padding: 0 0.3rem 0 0.7rem; border-radius: 10px; border: 1px solid var(--dtv-line); background: var(--input-bg, #fff); box-sizing: border-box; }
.dtv-root .dtv-search:focus-within { border-color: var(--dtv-accent); box-shadow: 0 0 0 3px var(--dtv-accent-soft); }
.dtv-root .dtv-search > svg { width: 16px; height: 16px; color: var(--dtv-muted); flex-shrink: 0; }
.dtv-root .dtv-search input { flex: 1; min-width: 0; width: auto; height: 100%; border: none; background: none; outline: none; box-shadow: none; color: var(--dtv-text-1); font-size: 0.9rem; padding: 0 0 0 0.4rem; margin: 0; }
.dtv-root .dtv-search-count { font-size: 0.76rem; color: var(--dtv-muted); white-space: nowrap; font-variant-numeric: tabular-nums; max-width: 210px; overflow: hidden; text-overflow: ellipsis; }
.dtv-root .dtv-select { width: 100%; height: 40px; max-width: 100%; min-width: 0; padding: 0 0.6rem; margin: 0; border-radius: 9px; border: 1px solid var(--dtv-line); background: var(--input-bg, #fff); color: var(--dtv-text-1); font-size: 0.88rem; box-sizing: border-box; }

/* log bar */
.dtv-root .dtv-segs { display: inline-flex; flex-wrap: wrap; padding: 0.15rem; gap: 0.15rem; border-radius: 9px; background: var(--dtv-sunk); border: 1px solid var(--dtv-line); max-width: 100%; }
.dtv-root .dtv-segs button { display: inline-flex; align-items: center; gap: 0.3rem; width: auto; min-height: 30px; padding: 0.15rem 0.6rem; margin: 0; border: none; border-radius: 7px; background: none; color: var(--dtv-muted); font-size: 0.8rem; font-weight: 700; cursor: pointer; }
.dtv-root .dtv-segs button:hover:not(:disabled) { color: var(--dtv-text-1); }
.dtv-root .dtv-segs button:disabled { opacity: 0.45; cursor: default; }
.dtv-root .dtv-segs button.is-active { background: var(--dtv-card); color: var(--dtv-accent-strong); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08); }
[data-theme="dark"] .dtv-root .dtv-segs button.is-active { color: var(--dtv-accent); background: #26334a; }

/* ---------- options (collapsed rows) ---------- */
.dtv-root .dtv-adv { border: 1px solid var(--dtv-line); border-radius: 12px; overflow: hidden; background: var(--dtv-card); margin-top: 0.75rem; }
.dtv-root .dtv-adv-row + .dtv-adv-row { border-top: 1px solid var(--dtv-line); }
.dtv-root .dtv-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(--dtv-text-1); font-weight: 400; }
.dtv-root .dtv-adv-left { display: flex; align-items: center; gap: 0.65rem; min-width: 0; }
.dtv-root .dtv-adv-left > svg { width: 18px; height: 18px; color: var(--dtv-accent); flex-shrink: 0; }
.dtv-root .dtv-adv-text { display: flex; flex-direction: column; min-width: 0; }
.dtv-root .dtv-adv-title { font-size: 0.9rem; font-weight: 700; }
.dtv-root .dtv-adv-hint { font-size: 0.76rem; color: var(--dtv-muted); line-height: 1.35; }
.dtv-root .dtv-adv-right { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.dtv-root .dtv-adv-value { max-width: 170px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 0.2rem 0.55rem; border-radius: 999px; background: var(--dtv-accent-soft); color: var(--dtv-accent-strong); font-size: 0.76rem; font-weight: 700; }
[data-theme="dark"] .dtv-root .dtv-adv-value { color: var(--dtv-accent); }
.dtv-root .dtv-chevron { width: 17px; height: 17px; color: var(--dtv-muted); transition: transform 0.2s; }
.dtv-root .dtv-adv-row.open .dtv-chevron { transform: rotate(180deg); }
.dtv-root .dtv-adv-row.open .dtv-adv-head, .dtv-root .dtv-adv-row.open .dtv-adv-body { background: var(--dtv-open); }
.dtv-root .dtv-adv-body { padding: 0.2rem 1rem 1rem; }
.dtv-root .dtv-adv-note { margin: 0.5rem 0 0; font-size: 0.78rem; color: var(--dtv-muted); line-height: 1.45; }
.dtv-root .dtv-switch-text { font-size: 0.74rem; font-weight: 800; color: var(--dtv-muted); min-width: 26px; text-align: right; }
/* switch - beats the global .tool-container checkbox rules */
.tool-container.dtv-root input[type="checkbox"].dtv-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.dtv-root input[type="checkbox"].dtv-switch { background: #475569 !important; }
.tool-container.dtv-root input[type="checkbox"].dtv-switch::after, .tool-container.dtv-root input[type="checkbox"].dtv-switch:checked::after {
    content: '' !important; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%;
    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; border: none;
}
.tool-container.dtv-root input[type="checkbox"].dtv-switch:checked { background: var(--dtv-go) !important; }
.tool-container.dtv-root input[type="checkbox"].dtv-switch:checked::after { left: 21px; }
.tool-container.dtv-root input[type="checkbox"].dtv-switch:focus-visible { outline: 3px solid var(--dtv-accent-line); outline-offset: 2px; }
/* action bar */
.dtv-root .dtv-actionbar { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-top: 1.1rem; padding-top: 1rem; border-top: 1px solid var(--dtv-line); }
.dtv-root .dtv-actionbar .dtv-btn-ghost { min-height: 40px; padding: 0.4rem 0.7rem; font-size: 0.86rem; gap: 0.35rem; }
.dtv-root .dtv-actionbar .dtv-btn-ghost svg { width: 16px; height: 16px; }
.dtv-root .dtv-actionbar .dtv-go { margin-left: auto; }
.dtv-root .dtv-dl-hint { font-weight: 600; font-size: 0.8rem; opacity: 0.85; }

/* toast */
.dtv-root .dtv-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"] .dtv-root .dtv-toast { background: #e2e8f0; color: #0f172a; }
.dtv-root .dtv-toast.is-out { opacity: 0; }

/* ---------- content ---------- */
.dtv-root .dtv-info { margin-top: 2rem; display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.25rem; }
.dtv-root .dtv-info > * { min-width: 0; }
.dtv-root .dtv-info-card { background: var(--bg-elevated, #fff); border: 1px solid var(--dtv-line); border-radius: var(--radius-md, 12px); padding: 1.4rem 1.5rem; }
.dtv-root .dtv-info-card h2 { display: flex; align-items: center; gap: 0.55rem; margin: 0 0 0.9rem; font-size: 1.25rem; color: var(--dtv-text-1); }
.dtv-root .dtv-info-card h2 svg { width: 22px; height: 22px; color: var(--dtv-accent); flex-shrink: 0; }
.dtv-root .dtv-info-card h3 { margin: 1.2rem 0 0.5rem; font-size: 1.05rem; color: var(--dtv-text-1); }
.dtv-root .dtv-info-card p, .dtv-root .dtv-info-card li { color: var(--dtv-text-2); line-height: 1.65; font-size: 0.97rem; }
.dtv-root .dtv-info-card p { margin: 0.8rem 0 0; }
.dtv-root .dtv-info-card h2 + p { margin-top: 0; }
.dtv-root .dtv-info a { color: var(--dtv-accent-strong); font-weight: 500; }
[data-theme="dark"] .dtv-root .dtv-info a { color: var(--dtv-accent); }
.dtv-root .dtv-steps, .dtv-root .dtv-list { margin: 0; padding-left: 1.3rem; display: grid; gap: 0.45rem; }
.dtv-root .dtv-info-card p + .dtv-list, .dtv-root .dtv-info-card p + .dtv-steps { margin-top: 0.7rem; }
.dtv-root .dtv-features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.dtv-root .dtv-feature { padding: 0.9rem 1rem; border-radius: 12px; border: 1px solid var(--dtv-line); background: var(--dtv-open); min-width: 0; }
.dtv-root .dtv-feature > svg { width: 20px; height: 20px; color: var(--dtv-accent); }
.dtv-root .dtv-info-card .dtv-feature h3 { margin: 0.35rem 0 0.2rem; font-size: 0.95rem; }
.dtv-root .dtv-info-card .dtv-feature p { margin: 0; font-size: 0.88rem; line-height: 1.55; }
.dtv-root .dtv-table-wrap { overflow-x: auto; border: 1px solid var(--dtv-line); border-radius: 10px; margin-top: 0.9rem; }
.dtv-root .dtv-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 520px; margin: 0; }
.dtv-root .dtv-table th, .dtv-root .dtv-table td { padding: 0.6rem 0.8rem; text-align: left; border-bottom: 1px solid var(--dtv-line); color: var(--dtv-text-2); vertical-align: top; }
.dtv-root .dtv-table th { background: var(--dtv-sunk); color: var(--dtv-text-1); font-weight: 700; font-size: 0.82rem; }
.dtv-root .dtv-table tr:last-child td { border-bottom: none; }
.dtv-root .dtv-table td:first-child { font-weight: 700; color: var(--dtv-text-1); white-space: nowrap; }
.dtv-root .dtv-keys { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.4rem 1rem; margin-top: 0.9rem; padding: 0; list-style: none; }
.dtv-root .dtv-keys li { display: flex; justify-content: space-between; gap: 0.6rem; padding: 0.35rem 0.6rem; border-radius: 8px; background: var(--dtv-open); font-size: 0.88rem; min-width: 0; }
.dtv-root .dtv-keys li span:last-child { text-align: right; white-space: nowrap; }
.dtv-root .dtv-faq .faq-question svg { width: 18px; height: 18px; flex-shrink: 0; }

.dtv-root .dtv-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* privacy strip */
.dtv-root .dtv-privacy { display: flex; align-items: center; gap: 0.75rem; max-width: 800px; margin: -0.5rem auto 1.25rem; padding: 0.65rem 1rem; border-radius: 14px; background: rgba(51, 153, 102, 0.08); border: 1px solid rgba(51, 153, 102, 0.35); color: var(--dtv-text-1); }
[data-theme="dark"] .dtv-root .dtv-privacy { background: rgba(52, 211, 153, 0.08); border-color: rgba(52, 211, 153, 0.35); }
.dtv-root .dtv-privacy-icon { width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: #339966; color: #fff; }
.dtv-root .dtv-privacy-icon svg { width: 18px; height: 18px; }
.dtv-root .dtv-privacy p { margin: 0; font-size: 0.92rem; line-height: 1.5; color: var(--dtv-text-2); }
.dtv-root .dtv-privacy strong { color: var(--dtv-text-1); }

/* upload extras */
.dtv-root .dtv-sample-row { align-items: center; }
.dtv-root .dtv-paste { margin-top: 0.9rem; }
.dtv-root .dtv-badge.is-ok { cursor: default; background: rgba(51, 153, 102, 0.1); border-color: rgba(51, 153, 102, 0.4); color: #237a52; }
[data-theme="dark"] .dtv-root .dtv-badge.is-ok { color: #6ee7b7; }
.dtv-root span.dtv-badge, .dtv-root .dtv-badge.is-plain { cursor: default; }

/* tabs */
.dtv-root .dtv-tabs { display: flex; gap: 0.25rem; margin-top: 1rem; border-bottom: 1px solid var(--dtv-line); overflow-x: auto; scrollbar-width: none; }
.dtv-root .dtv-tabs::-webkit-scrollbar { display: none; }
.dtv-root .dtv-tab { display: inline-flex; align-items: center; gap: 0.4rem; width: auto; flex-shrink: 0; margin: 0 0 -1px; padding: 0.6rem 0.9rem; border: none; border-bottom: 2px solid transparent; border-radius: 10px 10px 0 0; background: none; color: var(--dtv-muted); font-size: 0.92rem; font-weight: 700; cursor: pointer; white-space: nowrap; }
.dtv-root .dtv-tab svg { width: 17px; height: 17px; }
.dtv-root .dtv-tab:hover { color: var(--dtv-text-1); background: var(--dtv-accent-soft); }
.dtv-root .dtv-tab.is-active { color: var(--dtv-accent-strong); border-bottom-color: var(--dtv-accent); }
[data-theme="dark"] .dtv-root .dtv-tab.is-active { color: var(--dtv-accent); }
.dtv-root .dtv-tab-count { display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 20px; padding: 0 0.4rem; border-radius: 999px; background: var(--dtv-go); color: #fff; font-size: 0.72rem; font-weight: 800; box-sizing: border-box; }
.dtv-root .dtv-tab-count.is-warn { background: #d97706; }
.dtv-root .dtv-panel { padding-top: 0.9rem; min-width: 0; }

/* ============================================================
   Mail reader (mail-view.js) - shared by the EML/MSG, MBOX and PST viewers
   ============================================================ */
.dtv-root .dtv-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.dtv-root .dtv-mv { min-width: 0; }
.dtv-root .dtv-msg { min-width: 0; }
.dtv-root .dtv-crumb { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin: 0 0 0.75rem; padding: 0.4rem 0.5rem; border-radius: 10px; background: var(--dtv-accent-soft); }
.dtv-root .dtv-crumb-note { font-size: 0.78rem; color: var(--dtv-muted); font-weight: 600; }
.dtv-root .dtv-linkish { display: inline; width: auto; padding: 0; margin: 0; border: none; background: none; color: var(--dtv-accent-strong); font: inherit; font-weight: 600; cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }
[data-theme="dark"] .dtv-root .dtv-linkish { color: var(--dtv-accent); }

/* message header */
.dtv-root .dtv-mhead { min-width: 0; }
.dtv-root .dtv-subject { margin: 0 0 0.5rem; font-size: 1.3rem; line-height: 1.35; font-weight: 750; color: var(--dtv-text-1); overflow-wrap: anywhere; }
.dtv-root .dtv-mv .dtv-badges { margin: 0 0 0.6rem; }
.dtv-root .dtv-mv .dtv-badge { cursor: default; font-size: 0.74rem; padding: 0.18rem 0.55rem; background: var(--dtv-sunk); border-color: var(--dtv-line); color: var(--dtv-text-2); }
.dtv-root .dtv-mv .dtv-badge svg { width: 13px; height: 13px; }
.dtv-root .dtv-mv .dtv-badge-red { background: var(--dtv-red-soft); border-color: var(--dtv-red-line); color: var(--dtv-red); }
.dtv-root .dtv-mv .dtv-badge-green { background: rgba(51, 153, 102, 0.1); border-color: rgba(51, 153, 102, 0.4); color: #237a52; }
[data-theme="dark"] .dtv-root .dtv-mv .dtv-badge-green { color: #6ee7b7; }
.dtv-root .dtv-mv .dtv-badge-amber { background: rgba(217, 119, 6, 0.1); border-color: rgba(217, 119, 6, 0.4); color: var(--dtv-warn); }
.dtv-root .dtv-mv .dtv-badge-label { background: var(--dtv-accent-soft); border-color: var(--dtv-accent-line); color: var(--dtv-accent-strong); }
[data-theme="dark"] .dtv-root .dtv-mv .dtv-badge-label { color: var(--dtv-accent); }
.dtv-root .dtv-people { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 0.75rem; align-items: start; }
.dtv-root .dtv-avatar { width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 0.95rem; flex-shrink: 0; letter-spacing: 0.02em; }
.dtv-root .dtv-pmain { min-width: 0; font-size: 0.88rem; color: var(--dtv-text-2); line-height: 1.5; }
.dtv-root .dtv-from { color: var(--dtv-text-1); overflow-wrap: anywhere; }
.dtv-root .dtv-from strong { font-size: 0.98rem; }
.dtv-root .dtv-addr { color: var(--dtv-muted); font-size: 0.85em; overflow-wrap: anywhere; }
.dtv-root .dtv-via { font-size: 0.78rem; color: var(--dtv-muted); }
.dtv-root .dtv-rline { display: flex; gap: 0.4rem; min-width: 0; }
.dtv-root .dtv-rlabel { flex-shrink: 0; min-width: 2.2em; color: var(--dtv-muted); font-weight: 600; font-size: 0.82rem; }
.dtv-root .dtv-rlist { min-width: 0; overflow-wrap: anywhere; }
.dtv-root .dtv-dateblock { display: flex; flex-direction: column; align-items: flex-end; gap: 0.25rem; font-size: 0.8rem; color: var(--dtv-muted); text-align: right; white-space: nowrap; }
.dtv-root .dtv-attcount { display: inline-flex; align-items: center; gap: 0.2rem; font-weight: 700; color: var(--dtv-text-2); }
.dtv-root .dtv-attcount svg { width: 14px; height: 14px; }
.dtv-root .dtv-authrow { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem; margin-top: 0.6rem; font-size: 0.8rem; }
.dtv-root .dtv-auth { display: inline-flex; align-items: center; gap: 0.25rem; padding: 0.12rem 0.5rem; border-radius: 999px; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.02em; border: 1px solid; white-space: nowrap; }
.dtv-root .dtv-auth svg { width: 13px; height: 13px; }
.dtv-root .dtv-auth-ok { color: #237a52; background: rgba(51, 153, 102, 0.1); border-color: rgba(51, 153, 102, 0.4); }
.dtv-root .dtv-auth-bad { color: var(--dtv-red); background: var(--dtv-red-soft); border-color: var(--dtv-red-line); }
.dtv-root .dtv-auth-warn { color: var(--dtv-warn); background: rgba(217, 119, 6, 0.08); border-color: rgba(217, 119, 6, 0.4); }
[data-theme="dark"] .dtv-root .dtv-auth-ok { color: #6ee7b7; }

/* notices */
.dtv-root .dtv-mv .dtv-notice { display: flex; align-items: center; flex-wrap: wrap; gap: 0.45rem 0.6rem; margin-top: 0.75rem; padding: 0.55rem 0.8rem; border-radius: 10px; font-size: 0.84rem; line-height: 1.45; color: var(--dtv-text-1); background: rgba(51, 153, 102, 0.07); border: 1px solid rgba(51, 153, 102, 0.3); }
.dtv-root .dtv-mv .dtv-notice > svg { width: 17px; height: 17px; flex-shrink: 0; color: #339966; }
.dtv-root .dtv-mv .dtv-notice > span { flex: 1 1 240px; min-width: 0; }
.dtv-root .dtv-mv .dtv-notice-info { background: var(--dtv-accent-soft); border-color: var(--dtv-accent-line); }
.dtv-root .dtv-mv .dtv-notice-info > svg { color: var(--dtv-accent); }
.dtv-root .dtv-mv .dtv-notice-warn { background: rgba(217, 119, 6, 0.08); border-color: rgba(217, 119, 6, 0.38); }
.dtv-root .dtv-mv .dtv-notice-warn > svg { color: var(--dtv-warn); }

/* calendar + extra fields */
.dtv-root .dtv-cal { display: flex; gap: 0.75rem; margin-top: 0.75rem; padding: 0.75rem 0.9rem; border-radius: 12px; border: 1px solid var(--dtv-line); background: var(--dtv-open); }
.dtv-root .dtv-cal-ico { width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; background: var(--dtv-accent); color: #fff; }
.dtv-root .dtv-cal-ico svg { width: 20px; height: 20px; }
.dtv-root .dtv-cal-body { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; font-size: 0.85rem; color: var(--dtv-text-2); }
.dtv-root .dtv-cal-body .dtv-caption { margin: 0; }
.dtv-root .dtv-cal-body strong { color: var(--dtv-text-1); font-size: 0.98rem; }
.dtv-root .dtv-cal-body span { display: inline-flex; align-items: flex-start; gap: 0.35rem; overflow-wrap: anywhere; }
.dtv-root .dtv-cal-body span svg { width: 14px; height: 14px; flex-shrink: 0; margin-top: 3px; color: var(--dtv-accent); }
.dtv-root .dtv-cal-body p { margin: 0.3rem 0 0; white-space: pre-wrap; }
.dtv-root .dtv-fields { margin-top: 0.75rem; padding: 0.75rem 0.9rem; border-radius: 12px; border: 1px solid var(--dtv-line); background: var(--dtv-open); }
.dtv-root .dtv-fields dl { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0.25rem; margin: 0; }
.dtv-root .dtv-fields dl > div { display: grid; grid-template-columns: minmax(90px, 160px) minmax(0, 1fr); gap: 0.6rem; font-size: 0.86rem; }
.dtv-root .dtv-fields dt { color: var(--dtv-muted); font-weight: 600; }
.dtv-root .dtv-fields dd { margin: 0; color: var(--dtv-text-1); overflow-wrap: anywhere; white-space: pre-wrap; }

/* attachment strip */
.dtv-root .dtv-astrip { margin-top: 0.85rem; }
.dtv-root .dtv-astrip-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; flex-wrap: wrap; }
.dtv-root .dtv-astrip-head .dtv-caption { margin: 0; }
.dtv-root .dtv-achips { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 0.45rem; margin-top: 0.4rem; }
.dtv-root .dtv-achip { display: flex; align-items: center; gap: 0.2rem; min-width: 0; padding: 0.25rem 0.3rem 0.25rem 0.25rem; border-radius: 12px; border: 1px solid var(--dtv-line); background: var(--dtv-card); }
.dtv-root .dtv-achip:hover { border-color: var(--dtv-accent-line); }
.dtv-root .dtv-achip-main { display: flex; align-items: center; gap: 0.55rem; flex: 1; min-width: 0; width: auto; padding: 0.25rem; margin: 0; border: none; border-radius: 9px; background: none; text-align: left; cursor: pointer; color: var(--dtv-text-1); }
.dtv-root .dtv-achip-ico { width: 34px; height: 34px; border-radius: 9px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; background: var(--dtv-accent-soft); color: var(--dtv-accent); }
.dtv-root .dtv-achip-ico svg { width: 18px; height: 18px; }
.dtv-root .dtv-achip-text { display: flex; flex-direction: column; min-width: 0; }
.dtv-root .dtv-achip-name { font-size: 0.84rem; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-achip-meta { font-size: 0.74rem; color: var(--dtv-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* reader tabs */
.dtv-root .dtv-mv .dtv-tabs { align-items: center; margin-top: 0.9rem; }
.dtv-root .dtv-mv .dtv-tab { padding: 0.5rem 0.7rem; font-size: 0.86rem; }
.dtv-root .dtv-mv .dtv-tab svg { width: 15px; height: 15px; }
.dtv-root .dtv-count { display: inline-flex; align-items: center; justify-content: center; min-width: 18px; height: 18px; padding: 0 0.3rem; border-radius: 999px; background: var(--dtv-sunk); border: 1px solid var(--dtv-line); font-size: 0.7rem; font-weight: 800; color: var(--dtv-text-2); box-sizing: border-box; }
.dtv-root .dtv-tabs-spacer { flex: 1; }
.dtv-root .dtv-zoom { display: inline-flex; gap: 0.1rem; flex-shrink: 0; }
.dtv-root .dtv-mv .dtv-panel { padding-top: 0.75rem; }

/* body */
.dtv-root .dtv-framewrap { border: 1px solid var(--dtv-line); border-radius: 12px; overflow: hidden; background: #fff; }
.dtv-root .dtv-frame { display: block; width: 100%; min-height: 120px; height: 300px; border: 0; background: #fff; color-scheme: light; }
.dtv-root .dtv-linkhint { margin-top: 0.4rem; padding: 0.3rem 0.6rem; border-radius: 8px; background: var(--dtv-sunk); font: 0.76rem var(--dtv-mono); color: var(--dtv-text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-linkhint-warn { background: rgba(217, 119, 6, 0.1); color: var(--dtv-warn); white-space: normal; }
.dtv-root .dtv-plainbody { padding: 1rem 1.1rem; border: 1px solid var(--dtv-line); border-radius: 12px; background: var(--dtv-bg); color: var(--dtv-fg); font: 14px/1.6 var(--dtv-mono); white-space: pre-wrap; overflow-wrap: anywhere; max-height: none; }
.dtv-root .dtv-plainbody a { color: var(--dtv-accent-strong); }
[data-theme="dark"] .dtv-root .dtv-plainbody a { color: var(--dtv-accent); }
.dtv-root .dtv-panelbar { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.5rem; font-size: 0.82rem; }
.dtv-root .dtv-pre { margin: 0; padding: 0.85rem 1rem; border: 1px solid var(--dtv-line); border-radius: 12px; background: var(--dtv-bg); color: var(--dtv-fg); font: 13px/1.55 var(--dtv-mono); white-space: pre-wrap; overflow-wrap: anywhere; max-height: 640px; overflow: auto; }
.dtv-root .dtv-mactions { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.9rem; }
.dtv-root .dtv-mactions .dtv-btn-sm { min-height: 36px; }

/* headers panel */
.dtv-root .dtv-kvs { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; margin: 0; border: 1px solid var(--dtv-line); border-radius: 12px; overflow: hidden; }
.dtv-root .dtv-kv { display: grid; grid-template-columns: minmax(100px, 150px) minmax(0, 1fr); gap: 0.75rem; padding: 0.45rem 0.8rem; font-size: 0.85rem; border-bottom: 1px solid var(--dtv-line); }
.dtv-root .dtv-kv:last-child { border-bottom: none; }
.dtv-root .dtv-kv:nth-child(odd) { background: var(--dtv-open); }
.dtv-root .dtv-kv dt { color: var(--dtv-muted); font-weight: 600; }
.dtv-root .dtv-kv dd { margin: 0; color: var(--dtv-text-1); overflow-wrap: anywhere; }
.dtv-root .dtv-mono { font-family: var(--dtv-mono); font-size: 0.8rem; }
.dtv-root .dtv-h3 { display: flex; align-items: center; gap: 0.45rem; flex-wrap: wrap; margin: 1.2rem 0 0.55rem; font-size: 0.98rem; color: var(--dtv-text-1); }
.dtv-root .dtv-h3 > svg { width: 17px; height: 17px; color: var(--dtv-accent); }
.dtv-root .dtv-h3 .dtv-muted { font-size: 0.8rem; font-weight: 600; }
.dtv-root .dtv-h3-btn { margin-left: auto; }
.dtv-root .dtv-authlist { display: grid; gap: 0.35rem; }
.dtv-root .dtv-authitem { display: flex; gap: 0.5rem; align-items: baseline; min-width: 0; }
.dtv-root .dtv-authitem .dtv-mono { overflow-wrap: anywhere; min-width: 0; }
.dtv-root .dtv-mv .dtv-note { display: flex; gap: 0.4rem; align-items: flex-start; margin: 0.6rem 0 0; padding: 0; background: none; border: none; font-size: 0.8rem; color: var(--dtv-muted); line-height: 1.5; }
.dtv-root .dtv-mv .dtv-note svg { width: 15px; height: 15px; flex-shrink: 0; margin-top: 2px; }
.dtv-root .dtv-hops { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.dtv-root .dtv-hop { display: flex; gap: 0.7rem; position: relative; padding-bottom: 0.75rem; }
.dtv-root .dtv-hop:not(:last-child)::before { content: ''; position: absolute; left: 13px; top: 28px; bottom: 0; width: 2px; background: var(--dtv-line); }
.dtv-root .dtv-hop-n { width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; background: var(--dtv-accent-soft); border: 1px solid var(--dtv-accent-line); color: var(--dtv-accent-strong); font-size: 0.78rem; font-weight: 800; }
[data-theme="dark"] .dtv-root .dtv-hop-n { color: var(--dtv-accent); }
.dtv-root .dtv-hop-body { min-width: 0; font-size: 0.84rem; line-height: 1.45; }
.dtv-root .dtv-hop-top { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; color: var(--dtv-text-1); overflow-wrap: anywhere; }
.dtv-root .dtv-delay { padding: 0.05rem 0.45rem; border-radius: 999px; font-size: 0.72rem; font-weight: 800; border: 1px solid; }
.dtv-root .dtv-delay-ok { color: #237a52; border-color: rgba(51, 153, 102, 0.4); background: rgba(51, 153, 102, 0.08); }
[data-theme="dark"] .dtv-root .dtv-delay-ok { color: #6ee7b7; }
.dtv-root .dtv-delay-warn { color: var(--dtv-warn); border-color: rgba(217, 119, 6, 0.4); background: rgba(217, 119, 6, 0.08); }
.dtv-root .dtv-delay-bad { color: var(--dtv-red); border-color: var(--dtv-red-line); background: var(--dtv-red-soft); }
.dtv-root .dtv-rawheaders { max-height: 460px; overflow: auto; padding: 0.7rem 0.9rem; border: 1px solid var(--dtv-line); border-radius: 12px; background: var(--dtv-bg); color: var(--dtv-fg); font: 12.5px/1.55 var(--dtv-mono); }
.dtv-root .dtv-hl { padding-left: 1.5em; text-indent: -1.5em; overflow-wrap: anywhere; }
.dtv-root .dtv-hn { color: var(--dtv-i); font-weight: 700; }

/* attachments table */
.dtv-root .dtv-tablewrap { overflow-x: auto; border: 1px solid var(--dtv-line); border-radius: 12px; }
.dtv-root .dtv-mv .dtv-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; margin: 0; }
.dtv-root .dtv-mv .dtv-table th, .dtv-root .dtv-mv .dtv-table td { padding: 0.45rem 0.6rem; text-align: left; border-bottom: 1px solid var(--dtv-line); vertical-align: middle; color: var(--dtv-text-2); }
.dtv-root .dtv-mv .dtv-table th { background: var(--dtv-sunk); color: var(--dtv-text-1); font-size: 0.78rem; }
.dtv-root .dtv-mv .dtv-table tr:last-child td { border-bottom: none; }
.dtv-root .dtv-tico { display: inline-flex; color: var(--dtv-accent); }
.dtv-root .dtv-tico svg { width: 18px; height: 18px; }
.dtv-root .dtv-tname { min-width: 0; overflow-wrap: anywhere; }
.dtv-root .dtv-tsub { font-size: 0.74rem; color: var(--dtv-muted); }
.dtv-root .dtv-tmime { font: 0.74rem var(--dtv-mono); overflow-wrap: anywhere; }
.dtv-root .dtv-tsize { white-space: nowrap; font-variant-numeric: tabular-nums; }
.dtv-root .dtv-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.4rem; padding: 1.75rem 1rem; text-align: center; color: var(--dtv-muted); font-size: 0.88rem; }
.dtv-root .dtv-empty svg { width: 30px; height: 30px; color: var(--dtv-accent); opacity: 0.8; }
.dtv-root .dtv-empty strong { color: var(--dtv-text-1); }
.dtv-root .dtv-empty a { color: var(--dtv-accent-strong); font-weight: 600; }

/* preview modal */
.dtv-root .dtv-modal { position: fixed; inset: 0; z-index: 10010; display: flex; align-items: center; justify-content: center; padding: 16px; background: rgba(15, 23, 42, 0.55); box-sizing: border-box; }
.dtv-root .dtv-modal-box { display: flex; flex-direction: column; width: min(980px, 100%); max-height: calc(100vh - 32px); border-radius: 16px; background: var(--dtv-card); border: 1px solid var(--dtv-line); box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35); overflow: hidden; }
.dtv-root .dtv-modal-head { display: flex; align-items: center; gap: 0.6rem; padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--dtv-line); flex-wrap: wrap; }
.dtv-root .dtv-modal-title { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.dtv-root .dtv-modal-title strong { color: var(--dtv-text-1); font-size: 0.95rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-modal-title span { font-size: 0.76rem; color: var(--dtv-muted); }
.dtv-root .dtv-modal-body { flex: 1; min-height: 0; overflow: auto; padding: 0.8rem; background: var(--dtv-open); }
.dtv-root .dtv-pv-img { display: flex; align-items: center; justify-content: center; min-height: 200px; background-color: #fff; background-image: linear-gradient(45deg, #eef1f5 25%, transparent 25%), linear-gradient(-45deg, #eef1f5 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #eef1f5 75%), linear-gradient(-45deg, transparent 75%, #eef1f5 75%); background-size: 18px 18px; background-position: 0 0, 0 9px, 9px -9px, -9px 0; border-radius: 10px; }
.dtv-root .dtv-pv-img img { max-width: 100%; max-height: 70vh; display: block; }
.dtv-root .dtv-pv-pdf { display: block; width: 100%; height: 70vh; border: 0; border-radius: 10px; background: #fff; }
.dtv-root .dtv-pv-media { display: block; width: 100%; max-height: 70vh; }
.dtv-root .dtv-pv-text { max-height: 70vh; }

/* full screen fallback */
.dtv-root .dtv-pseudo-full { position: fixed; inset: 0; z-index: 10005; overflow: auto; background: var(--dtv-card); padding: 1rem; }
.dtv-root :fullscreen { overflow: auto; background: var(--dtv-card); padding: 1rem; box-sizing: border-box; }

@media (max-width: 600px) {
    .dtv-root .dtv-subject { font-size: 1.12rem; }
    .dtv-root .dtv-people { grid-template-columns: auto minmax(0, 1fr); }
    .dtv-root .dtv-dateblock { grid-column: 1 / -1; flex-direction: row; justify-content: flex-start; align-items: center; gap: 0.6rem; text-align: left; }
    .dtv-root .dtv-avatar { width: 36px; height: 36px; font-size: 0.85rem; }
    .dtv-root .dtv-achips { grid-template-columns: minmax(0, 1fr); }
    .dtv-root .dtv-kv { grid-template-columns: minmax(0, 1fr); gap: 0.1rem; }
    .dtv-root .dtv-mv .dtv-tab { padding: 0.5rem 0.45rem; }
    .dtv-root .dtv-mv .dtv-tab svg { display: none; }
    .dtv-root .dtv-zoom { display: none; }
    .dtv-root .dtv-mactions .dtv-btn-sm { flex: 1 1 calc(50% - 0.4rem); }
    .dtv-root .dtv-mv .dtv-tmime { display: none; }
    .dtv-root .dtv-plainbody { padding: 0.8rem; font-size: 13px; }
    .dtv-root .dtv-modal { padding: 0; }
    .dtv-root .dtv-modal-box { max-height: 100vh; height: 100%; border-radius: 0; }
}

/* ============================================================
   Mailbox browser (MBOX / PST): list + reader, folder tree
   ============================================================ */
.dtv-root .dtv-browser { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr); gap: 0.9rem; margin-top: 0.75rem; align-items: start; }
.dtv-root .dtv-browser.has-tree { grid-template-columns: minmax(0, 220px) minmax(0, 0.95fr) minmax(0, 1.3fr); }
.dtv-root .dtv-browser > * { min-width: 0; }
.dtv-root .dtv-listcol { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--dtv-line); border-radius: 14px; overflow: hidden; background: var(--dtv-card); }
.dtv-root .dtv-listhead { display: flex; align-items: center; gap: 0.4rem; padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--dtv-line); background: var(--dtv-open); font-size: 0.78rem; color: var(--dtv-muted); min-height: 40px; box-sizing: border-box; }
.dtv-root .dtv-listhead .dtv-listinfo { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.dtv-root .dtv-mlist { position: relative; height: 640px; overflow-y: auto; overflow-x: hidden; outline: none; -webkit-overflow-scrolling: touch; }
.dtv-root .dtv-mlist:focus-visible { box-shadow: inset 0 0 0 3px var(--dtv-accent-line); }
.dtv-root .dtv-space { position: relative; width: 100%; }
.dtv-root .dtv-win { position: absolute; left: 0; right: 0; top: 0; }
.dtv-root .dtv-row { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0.55rem; align-items: center; height: 72px; box-sizing: border-box; padding: 0.45rem 0.7rem 0.45rem 0.55rem; border-bottom: 1px solid var(--dtv-line); cursor: pointer; position: relative; }
.dtv-root .dtv-row:hover { background: var(--dtv-open); }
.dtv-root .dtv-row.is-current { background: var(--dtv-accent-soft); box-shadow: inset 0 0 0 2px var(--dtv-accent-line); }
.dtv-root .dtv-row.is-unread .dtv-row-from, .dtv-root .dtv-row.is-unread .dtv-row-subj { font-weight: 800; color: var(--dtv-text-1); }
.dtv-root .dtv-row-main { min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0.05rem 0.5rem; align-items: baseline; }
.dtv-root .dtv-row-from { font-size: 0.86rem; font-weight: 650; color: var(--dtv-text-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-row-date { font-size: 0.74rem; color: var(--dtv-muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.dtv-root .dtv-row-subj { grid-column: 1 / 2; font-size: 0.84rem; color: var(--dtv-text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-row-meta { display: inline-flex; align-items: center; gap: 0.3rem; justify-content: flex-end; font-size: 0.72rem; color: var(--dtv-muted); white-space: nowrap; }
.dtv-root .dtv-row-meta svg { width: 13px; height: 13px; }
.dtv-root .dtv-row-snip { grid-column: 1 / -1; font-size: 0.76rem; color: var(--dtv-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-row mark { background: rgba(250, 204, 21, 0.45); color: inherit; border-radius: 3px; padding: 0 1px; }
.dtv-root .dtv-listempty { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.4rem; padding: 1rem; text-align: center; color: var(--dtv-muted); font-size: 0.86rem; }
.dtv-root .dtv-listempty svg { width: 28px; height: 28px; color: var(--dtv-accent); }
.dtv-root .dtv-listempty strong { color: var(--dtv-text-1); }
/* row checkbox - beats the global .tool-container checkbox rules */
.tool-container.dtv-root input[type="checkbox"].dtv-check {
    -webkit-appearance: none !important; appearance: none !important; position: relative; flex-shrink: 0;
    width: 18px !important; height: 18px !important; margin: 0 !important; padding: 0 !important;
    border: 2px solid #94a3b8 !important; border-radius: 5px !important; background: var(--dtv-card) !important; box-shadow: none !important; cursor: pointer;
}
.tool-container.dtv-root input[type="checkbox"].dtv-check::after { content: '' !important; position: absolute; left: 4px; top: 0; width: 5px; height: 10px; border: solid transparent; border-width: 0 2px 2px 0; transform: none !important; rotate: 45deg; background: none; font-size: 0; }
.tool-container.dtv-root input[type="checkbox"].dtv-check:checked { background: var(--dtv-go) !important; border-color: var(--dtv-go) !important; }
.tool-container.dtv-root input[type="checkbox"].dtv-check:checked::after { border-color: #fff; }
.tool-container.dtv-root input[type="checkbox"].dtv-check:indeterminate { background: var(--dtv-go) !important; border-color: var(--dtv-go) !important; }
.tool-container.dtv-root input[type="checkbox"].dtv-check:indeterminate::after { border-color: #fff; border-width: 0 0 2px 0; rotate: 0deg; left: 2px; top: -1px; width: 10px; height: 7px; }
.tool-container.dtv-root input[type="checkbox"].dtv-check:focus-visible { outline: 3px solid var(--dtv-accent-line); outline-offset: 2px; }
.dtv-root .dtv-checkwrap { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 44px; margin: -0.3rem 0; cursor: pointer; }

.dtv-root .dtv-readcol { min-width: 0; border: 1px solid var(--dtv-line); border-radius: 14px; background: var(--dtv-card); padding: 1rem 1.1rem; min-height: 300px; position: relative; }
.dtv-root .dtv-readcol > .dtv-reader-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.5rem; min-height: 360px; text-align: center; color: var(--dtv-muted); font-size: 0.9rem; }
.dtv-root .dtv-reader-empty svg { width: 34px; height: 34px; color: var(--dtv-accent); opacity: 0.85; }
.dtv-root .dtv-reader-empty strong { color: var(--dtv-text-1); font-size: 1rem; }
.dtv-root .dtv-sheetbar { display: none; align-items: center; justify-content: space-between; gap: 0.5rem; margin: -0.3rem 0 0.6rem; }
.dtv-root .dtv-sheetnav { display: inline-flex; gap: 0.2rem; }

/* folder tree */
.dtv-root .dtv-tree { border: 1px solid var(--dtv-line); border-radius: 14px; background: var(--dtv-card); padding: 0.4rem; max-height: 682px; overflow: auto; box-sizing: border-box; }
.dtv-root .dtv-tree ul { list-style: none; margin: 0; padding: 0; }
.dtv-root .dtv-tree ul ul { padding-left: 0.85rem; }
.dtv-root .dtv-fold { display: flex; align-items: center; gap: 0.25rem; min-width: 0; }
.dtv-root .dtv-fold-tog { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 28px; padding: 0; margin: 0; border: none; background: none; color: var(--dtv-muted); cursor: pointer; flex-shrink: 0; }
.dtv-root .dtv-fold-tog svg { width: 14px; height: 14px; transition: transform 0.15s; }
.dtv-root .dtv-fold-tog[aria-expanded="false"] svg { transform: rotate(-90deg); }
.dtv-root .dtv-fold-tog.is-leaf { visibility: hidden; }
.dtv-root .dtv-fold-btn { display: flex; align-items: center; gap: 0.4rem; flex: 1; min-width: 0; width: auto; min-height: 32px; padding: 0.2rem 0.45rem; margin: 0; border: none; border-radius: 8px; background: none; color: var(--dtv-text-2); font-size: 0.84rem; font-weight: 600; text-align: left; cursor: pointer; }
.dtv-root .dtv-fold-btn:hover { background: var(--dtv-open); color: var(--dtv-text-1); }
.dtv-root .dtv-fold-btn.is-current { background: var(--dtv-accent-soft); color: var(--dtv-accent-strong); }
[data-theme="dark"] .dtv-root .dtv-fold-btn.is-current { color: var(--dtv-accent); }
.dtv-root .dtv-fold-btn svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--dtv-accent); }
.dtv-root .dtv-fold-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-fold-n { font-size: 0.72rem; font-weight: 700; color: var(--dtv-muted); font-variant-numeric: tabular-nums; }
.dtv-root .dtv-fold-btn.is-empty .dtv-fold-n { opacity: 0.5; }
.dtv-root .dtv-foldsel { display: none; }

/* list toolbar extras */
.dtv-root .dtv-chiprow { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.6rem; }
.dtv-root .dtv-fchip { display: inline-flex; align-items: center; gap: 0.3rem; width: auto; min-height: 32px; padding: 0.2rem 0.65rem; margin: 0; border-radius: 999px; border: 1px solid var(--dtv-line); background: var(--dtv-card); color: var(--dtv-text-2); font-size: 0.8rem; font-weight: 650; cursor: pointer; max-width: 100%; }
.dtv-root .dtv-fchip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-fchip svg { width: 14px; height: 14px; color: var(--dtv-accent); flex-shrink: 0; }
.dtv-root .dtv-fchip em { font-style: normal; font-size: 0.72rem; color: var(--dtv-muted); font-variant-numeric: tabular-nums; }
.dtv-root .dtv-fchip:hover { border-color: var(--dtv-accent-line); }
.dtv-root .dtv-fchip.is-active { border-color: var(--dtv-accent); background: var(--dtv-accent-soft); color: var(--dtv-accent-strong); }
[data-theme="dark"] .dtv-root .dtv-fchip.is-active { color: var(--dtv-accent); }
.dtv-root .dtv-selbar { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.6rem; padding: 0.35rem 0.5rem; border-radius: 10px; background: var(--dtv-accent-soft); border: 1px solid var(--dtv-accent-line); font-size: 0.82rem; font-weight: 700; color: var(--dtv-text-1); }
.dtv-root .dtv-selbar .dtv-seltext { margin-right: auto; }
.dtv-root .dtv-searchprog { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.5rem; font-size: 0.8rem; color: var(--dtv-muted); }
.dtv-root .dtv-searchprog .dtv-bar { flex: 1; margin: 0; height: 6px; }


/* mailbox toolbar + list extras */
.dtv-root .dtv-flag { display: inline-flex; align-items: center; justify-content: center; width: auto; min-width: 32px; height: 32px; padding: 0 0.35rem; margin: 0; border: 1px solid transparent; border-radius: 7px; background: none; color: var(--dtv-muted); cursor: pointer; flex-shrink: 0; }
.dtv-root .dtv-flag svg { width: 16px; height: 16px; }
.dtv-root .dtv-flag:hover { color: var(--dtv-text-1); }
.dtv-root .dtv-flag[aria-pressed="true"] { border-color: var(--dtv-accent); background: var(--dtv-accent-soft); color: var(--dtv-accent-strong); }
[data-theme="dark"] .dtv-root .dtv-flag[aria-pressed="true"] { color: var(--dtv-accent); }
.dtv-root .dtv-sort { width: auto; min-width: 150px; height: 42px; flex: 0 0 auto; }
.dtv-root .dtv-thread { min-height: 42px; }
.dtv-root .dtv-thread[aria-pressed="true"] { border-color: var(--dtv-accent); background: var(--dtv-accent-soft); color: var(--dtv-accent-strong); }
[data-theme="dark"] .dtv-root .dtv-thread[aria-pressed="true"] { color: var(--dtv-accent); }
.dtv-root .dtv-row.is-reply .dtv-row-main { padding-left: 14px; }
.dtv-root .dtv-row.is-selected { background: var(--dtv-open); }
.dtv-root .dtv-row.is-current.is-selected { background: var(--dtv-accent-soft); }
.dtv-root .dtv-row-from { display: flex; align-items: center; gap: 0.3rem; }
.dtv-root .dtv-row-from > svg { width: 14px; height: 14px; color: var(--dtv-muted); flex-shrink: 0; }
.dtv-root .dtv-row-subj em { color: var(--dtv-muted); }
.dtv-root .dtv-tcount { display: inline-flex; align-items: center; justify-content: center; min-width: 18px; height: 18px; padding: 0 0.3rem; border-radius: 999px; background: var(--dtv-sunk); border: 1px solid var(--dtv-line); font-size: 0.68rem; font-weight: 800; color: var(--dtv-text-2); box-sizing: border-box; flex-shrink: 0; }
.dtv-root .dtv-row-meta span { font-variant-numeric: tabular-nums; }
.dtv-root .dtv-readcol > #mbvMail, .dtv-root .dtv-readcol > div:last-child { min-width: 0; }
.dtv-root .dtv-senders { list-style: none; margin: 0.2rem 0 0; padding: 0; display: grid; gap: 0.3rem; }
.dtv-root .dtv-sender { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; width: 100%; min-height: 36px; padding: 0.35rem 0.6rem; margin: 0; border: 1px solid var(--dtv-line); border-radius: 9px; background: var(--dtv-card); color: var(--dtv-text-1); font-size: 0.84rem; text-align: left; cursor: pointer; overflow: hidden; }
.dtv-root .dtv-sender:hover { border-color: var(--dtv-accent-line); }
.dtv-root .dtv-sender-name { position: relative; z-index: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 650; }
.dtv-root .dtv-sender-n { position: relative; z-index: 1; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--dtv-text-2); }
.dtv-root .dtv-sender-bar { position: absolute; left: 0; top: 0; bottom: 0; background: var(--dtv-accent-soft); z-index: 0; }
.dtv-root .dtv-keys code { white-space: nowrap; }
.dtv-root .dtv-searchprog { max-width: 520px; }

/* full screen mailbox */
.dtv-root .dtv-card.is-full { position: fixed; inset: 10px; z-index: 10000; margin: 0; overflow: auto; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35); }
.dtv-root .dtv-card.is-full .dtv-mlist { height: calc(100vh - 330px); min-height: 300px; }
body.dtv-noscroll { overflow: hidden; }

@media (max-width: 1080px) {
    .dtv-root .dtv-browser.has-tree { grid-template-columns: minmax(0, 200px) minmax(0, 1fr); }
    .dtv-root .dtv-browser.has-tree .dtv-readcol { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
    .dtv-root .dtv-browser, .dtv-root .dtv-browser.has-tree { grid-template-columns: minmax(0, 1fr); }
    .dtv-root .dtv-browser.has-tree .dtv-tree { display: none; }
    .dtv-root .dtv-foldsel { display: block; margin-top: 0.6rem; }
    .dtv-root .dtv-readcol { display: none; }
    .dtv-root .dtv-readcol.is-open { display: block; position: fixed; inset: 0; z-index: 10002; border-radius: 0; border: none; overflow-y: auto; padding: 0.9rem 16px 1.5rem; }
    .dtv-root .dtv-sheetbar { display: flex; position: sticky; top: -0.9rem; z-index: 2; margin: -0.9rem -16px 0.7rem; padding: 0.5rem 16px; background: var(--dtv-card); border-bottom: 1px solid var(--dtv-line); }
    .dtv-root .dtv-mlist { height: 560px; }
}
@media (max-width: 600px) {
    .dtv-root .dtv-row { height: 76px; padding-left: 0.35rem; }
    .dtv-root .dtv-mlist { height: 520px; }
    .dtv-root .dtv-card.is-full { inset: 0; border-radius: 0; }
}

/* ============================================================
   Page shell extras (EML / MBOX pages)
   ============================================================ */
.dtv-root .dtv-input-bar { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.6rem; }
.dtv-root .dtv-adv-paste { margin-top: 1rem; }
.dtv-root .dtv-adv-paste .dtv-adv-body { padding-top: 0.5rem; }
.dtv-root .dtv-recent { margin-top: 1rem; padding-top: 0.85rem; border-top: 1px solid var(--dtv-line); }
.dtv-root .dtv-recent-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.dtv-root .dtv-recent-head .dtv-caption { margin: 0; }
.dtv-root .dtv-recent-list { list-style: none; margin: 0.4rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.4rem; }
.dtv-root .dtv-recent-list li { min-width: 0; }
.dtv-root .dtv-recent-item { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 0.5rem; width: 100%; padding: 0.5rem 0.7rem; margin: 0; border-radius: 10px; border: 1px solid var(--dtv-line); background: var(--dtv-sunk); cursor: pointer; text-align: left; min-width: 0; color: var(--dtv-text-1); }
.dtv-root .dtv-recent-item:hover { border-color: var(--dtv-accent-line); }
.dtv-root .dtv-recent-item svg { width: 16px; height: 16px; color: var(--dtv-accent); }
.dtv-root .dtv-recent-name { font-size: 0.85rem; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dtv-root .dtv-recent-meta { font-size: 0.74rem; color: var(--dtv-muted); white-space: nowrap; }
.dtv-root .dtv-prog-top { min-height: 40px; }
.dtv-root .dtv-filehead .dtv-badges { align-items: center; }
.dtv-root .dtv-files { margin-top: 0.85rem; }
.dtv-root .dtv-files .dtv-caption { margin: 0 0 0.35rem; }
.dtv-root .dtv-files-row { display: flex; gap: 0.35rem; overflow-x: auto; padding-bottom: 0.25rem; scrollbar-width: thin; }
.dtv-root .dtv-files-row .dtv-fchip { flex-shrink: 0; max-width: 260px; }
.dtv-root .dtv-mailhost { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--dtv-line); min-width: 0; }
.dtv-root .dtv-info-card .dtv-table td:first-child { font-family: var(--dtv-mono); }
.dtv-root .dtv-stat-row { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.75rem; }

@media (max-width: 760px) {
    .dtv-root .dtv-search { flex-basis: 100%; min-width: 0; }
    .dtv-root .dtv-features { grid-template-columns: minmax(0, 1fr); }
    .dtv-root .dtv-keys { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
    .dtv-root .dtv-chiprow { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 0.3rem; scrollbar-width: thin; }
    .dtv-root .dtv-chiprow .dtv-fchip { flex-shrink: 0; }
    .dtv-root .dtv-sort { flex: 1 1 auto; min-width: 0; }
    .dtv-root .dtv-thread { flex: 0 0 auto; }
    .dtv-root .dtv-actionbar .dtv-go { flex: 1 1 100%; margin-left: 0; }
    .dtv-root .dtv-actionbar .dtv-btn-ghost { flex: 1; }
    .dtv-root.tool-container { padding: 1.1rem 16px; }
    .dtv-root .tool-title { font-size: 1.5rem; }
    .dtv-root .dtv-title-icon { width: 46px; height: 46px; border-radius: 13px; }
    .dtv-root .dtv-title-icon svg { width: 25px; height: 25px; }
    .dtv-root .dtv-title-row { gap: 0.7rem; }
    .dtv-root .tool-description { font-size: 0.98rem; }
    .dtv-root .dtv-card { padding: 1rem; border-radius: 16px; }
    .dtv-root .dtv-drop { min-height: 150px; padding: 1.2rem 0.9rem; }
    .dtv-root .dtv-kbd-hint { display: none; }
    .dtv-root .dtv-input-bar .dtv-go { flex: 1 1 100%; }
    .dtv-root .dtv-input-bar .dtv-btn-ghost { flex: 1; }
    .dtv-root .dtv-recent-list { grid-template-columns: minmax(0, 1fr); }
    .dtv-root .dtv-info-card { padding: 1.1rem 1rem; }
    .dtv-root .dtv-adv-head { padding: 0.55rem 0.75rem; }
    .dtv-root .dtv-adv-value { max-width: 96px; }
    .dtv-root .dtv-filehead .dtv-badges { width: 100%; }
    .dtv-root .dtv-filehead .dtv-badges .dtv-btn { flex: 1; }
    .dtv-root .dtv-sample-row .dtv-seg-btn { flex: 1 1 100%; justify-content: center; }
}

/* ============================================================
   DAT viewer extras: summary strip, "what is this file" card,
   media preview, virtualised text + hex views, details tables
   ============================================================ */
.dtv-root .dtv-tabs { margin-top: 1rem; }
.dtv-root .dtv-panel { padding-top: 1rem; }
.dtv-root .dtv-panel > .dtv-mailhost { margin-top: 0; padding-top: 0; border-top: none; }
.dtv-root .dtv-strip { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 1rem; padding: 0.7rem 0.85rem; border-radius: 12px; background: var(--dtv-sunk); border: 1px solid var(--dtv-line); }
.dtv-root .dtv-strip .dtv-stats { margin-top: 0; }
.dtv-root .dtv-strip .dtv-stat { background: var(--dtv-card); }
.dtv-root .dtv-strip-acts { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.dtv-root .dtv-kindcard { display: flex; gap: 0.9rem; align-items: flex-start; padding: 1rem 1.1rem; border-radius: 14px; border: 1px solid var(--dtv-accent-line); background: var(--dtv-accent-soft); }
.dtv-root .dtv-kindcard.is-warn { border-color: rgba(217, 119, 6, 0.45); background: rgba(217, 119, 6, 0.08); }
.dtv-root .dtv-kind-ico { width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--dtv-accent); color: #fff; }
[data-theme="dark"] .dtv-root .dtv-kind-ico { color: #0b1e33; }
.dtv-root .dtv-kindcard.is-warn .dtv-kind-ico { background: #d97706; color: #fff; }
.dtv-root .dtv-kind-ico svg { width: 24px; height: 24px; }
.dtv-root .dtv-kind-body { flex: 1; min-width: 0; }
.dtv-root .dtv-kind-body .dtv-caption { margin-bottom: 0.15rem; }
.dtv-root .dtv-kind-body > strong { display: block; font-size: 1.1rem; color: var(--dtv-text-1); overflow-wrap: anywhere; }
.dtv-root .dtv-kind-body p { margin: 0.35rem 0 0; font-size: 0.9rem; line-height: 1.55; color: var(--dtv-text-2); }
.dtv-root .dtv-kind-acts { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.75rem; }
.dtv-root .dtv-vcdprog { margin-top: 0.75rem; font-size: 0.85rem; }
.dtv-root .dtv-vcdprog .dtv-bar { margin: 0 0 0.35rem; }

.dtv-root .dtv-media { margin-top: 1rem; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.dtv-root .dtv-media video { width: 100%; max-height: 70vh; border-radius: 12px; background: #000; }
.dtv-root .dtv-media audio { width: 100%; max-width: 560px; }
.dtv-root .dtv-imgbox { padding: 1rem; border-radius: 12px; border: 1px solid var(--dtv-line); background-color: var(--dtv-card); background-image: linear-gradient(45deg, rgba(100, 116, 139, 0.12) 25%, transparent 25%), linear-gradient(-45deg, rgba(100, 116, 139, 0.12) 25%, transparent 25%), linear-gradient(45deg, transparent 75%, rgba(100, 116, 139, 0.12) 75%), linear-gradient(-45deg, transparent 75%, rgba(100, 116, 139, 0.12) 75%); background-size: 20px 20px; background-position: 0 0, 0 10px, 10px -10px, -10px 0; }
.dtv-root .dtv-imgbox img { display: block; max-width: 100%; max-height: 70vh; height: auto; }
.dtv-root .dtv-mediaerr { margin: 0; font-size: 0.86rem; text-align: center; }
.dtv-root .dtv-texthost:empty { display: none; }
.dtv-root .dtv-texthost { margin-top: 1rem; min-width: 0; }

/* text view */
.dtv-root .dtv-tvbar, .dtv-root .dtv-hexbar { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.dtv-root .dtv-tvbar .dtv-search { min-width: 220px; }
.dtv-root .dtv-encsel { width: auto; max-width: 230px; flex: 0 1 auto; }
.dtv-root .dtv-tvinfo { margin: 0.5rem 0 0.4rem; font-size: 0.8rem; min-height: 1.2em; }
.dtv-root .dtv-tv, .dtv-root .dtv-hex { position: relative; height: 62vh; min-height: 260px; max-height: 720px; overflow: auto; border: 1px solid var(--dtv-line); border-radius: 12px; background: var(--dtv-bg); color: var(--dtv-fg); font: 13px/20px var(--dtv-mono); contain: strict; }
.dtv-root .dtv-tv:focus-visible, .dtv-root .dtv-hex:focus-visible { outline: 3px solid var(--dtv-accent-line); outline-offset: 1px; }
.dtv-root .dtv-tv-spacer, .dtv-root .dtv-hex-spacer { width: 1px; }
.dtv-root .dtv-tv-rows, .dtv-root .dtv-hex-rows { position: absolute; top: 0; left: 0; min-width: 100%; will-change: transform; }
.dtv-root .dtv-tv-row { display: flex; height: 20px; white-space: pre; }
.dtv-root .dtv-tv-row.is-hit { background: var(--dtv-accent-soft); }
.dtv-root .dtv-tv-num { flex-shrink: 0; position: sticky; left: 0; padding: 0 0.6rem 0 0.4rem; text-align: right; color: var(--dtv-gut-t); background: var(--dtv-gut); border-right: 1px solid var(--dtv-gut-line); user-select: none; }
.dtv-root .dtv-tv-text { padding: 0 0.75rem; }
.dtv-root .dtv-tv mark { background: #fde68a; color: #1f2937; border-radius: 2px; }
[data-theme="dark"] .dtv-root .dtv-tv mark { background: #a16207; color: #fff; }

/* hex view */
.dtv-root .dtv-hexbar { margin-bottom: 0.6rem; }
.dtv-root .dtv-hexbar .dtv-caption { margin: 0; }
.dtv-root .dtv-goto { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.82rem; font-weight: 600; color: var(--dtv-text-2); margin: 0; }
.dtv-root .dtv-goto input { width: 130px; height: 36px; padding: 0 0.6rem; margin: 0; border-radius: 9px; border: 1px solid var(--dtv-line); background: var(--input-bg, #fff); color: var(--dtv-text-1); font: 0.85rem var(--dtv-mono); box-sizing: border-box; }
.dtv-root .dtv-goto input:focus { outline: none; border-color: var(--dtv-accent); box-shadow: 0 0 0 3px var(--dtv-accent-soft); }
.dtv-root .dtv-hexinfo { font-size: 0.8rem; margin-left: auto; }
.dtv-root .dtv-hx-row { display: flex; gap: 1.1rem; height: 20px; white-space: pre; padding: 0 0.75rem; }
.dtv-root .dtv-hx-off { color: var(--dtv-gut-t); user-select: none; }
.dtv-root .dtv-hx-hex { color: var(--dtv-fg); }
.dtv-root .dtv-hx-asc { color: var(--dtv-ts); }
.dtv-root .dtv-hx-asc i { font-style: normal; color: var(--dtv-ws); }
.dtv-root .dtv-hx-mark { background: #fde68a; color: #1f2937; border-radius: 2px; }

/* details */
.dtv-root .dtv-facts dl { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; margin: 0; border: 1px solid var(--dtv-line); border-radius: 12px; overflow: hidden; }
.dtv-root .dtv-facts dl > div { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 0.75rem; padding: 0.55rem 0.85rem; border-top: 1px solid var(--dtv-line); font-size: 0.88rem; }
.dtv-root .dtv-facts dl > div:first-child { border-top: none; }
.dtv-root .dtv-facts dt { font-weight: 700; color: var(--dtv-text-1); }
.dtv-root .dtv-facts dd { margin: 0; color: var(--dtv-text-2); overflow-wrap: anywhere; min-width: 0; }
.dtv-root .dtv-facts .dtv-text-btn { padding: 0.1rem 0.4rem; }
.dtv-root .dtv-hash { font-size: 0.78rem; word-break: break-all; }
.dtv-root .dtv-h3 { display: flex; align-items: center; gap: 0.45rem; margin: 1.3rem 0 0.4rem; font-size: 1rem; color: var(--dtv-text-1); }
.dtv-root .dtv-h3 svg { width: 18px; height: 18px; color: var(--dtv-accent); }
.dtv-root .dtv-psearch { max-width: 420px; min-width: 0; margin-bottom: 0.2rem; }
.dtv-root .dtv-ptable { min-width: 640px; font-size: 0.84rem; }
.dtv-root .dtv-ptable td:first-child { white-space: nowrap; }
.dtv-root .dtv-ptable code { font-size: 0.8em; }
.dtv-root .dtv-pval { overflow-wrap: anywhere; max-width: 420px; }
.dtv-root .dtv-ok { color: #237a52; font-weight: 700; }
[data-theme="dark"] .dtv-root .dtv-ok { color: #6ee7b7; }
.dtv-root .dtv-bad { color: var(--dtv-red); font-weight: 700; }
.dtv-root .dtv-pad { padding: 0.75rem 0; }
.dtv-root .dtv-info-card code { white-space: normal; overflow-wrap: anywhere; }

@media (max-width: 600px) {
    .dtv-root .dtv-kindcard { flex-direction: column; }
    .dtv-root .dtv-kind-acts .dtv-btn { flex: 1 1 100%; }
    .dtv-root .dtv-tvbar .dtv-search { flex-basis: 100%; min-width: 0; }
    .dtv-root .dtv-encsel { flex: 1 1 auto; max-width: none; }
    .dtv-root .dtv-tv, .dtv-root .dtv-hex { height: 56vh; font-size: 12px; }
    .dtv-root .dtv-hx-row { gap: 0.6rem; padding: 0 0.5rem; }
    .dtv-root .dtv-goto input { width: 110px; }
    .dtv-root .dtv-hexinfo { margin-left: 0; }
    .dtv-root .dtv-facts dl > div { grid-template-columns: minmax(0, 1fr); gap: 0.15rem; }
    .dtv-root .dtv-strip-acts .dtv-btn { flex: 1 1 auto; }
}
@media print {
    .dtv-root .dtv-tabs, .dtv-root .dtv-strip, .dtv-root .dtv-filehead .dtv-badges { display: none !important; }
}
.dtv-root .dtv-hash:empty { display: none; }