/* ============================================================
   Text Transform Tool - scoped under .ttx / .ttx-* (rebuilt 2026-10-07)
   Shared header, footer, FAQ and related pills come from custom_styles.css.
   Accent: the page's established blue #3399cc. Single colours, no gradients,
   no thick side borders. Light default, dark via [data-theme="dark"].
   ============================================================ */
.ttx {
    --ttx-accent: #3399cc;
    --ttx-accent-strong: #237a9f;
    --ttx-accent-soft: rgba(51, 153, 204, 0.09);
    --ttx-accent-line: rgba(51, 153, 204, 0.45);
    --ttx-go: #237a9f;
    --ttx-go-hover: #1b6183;
    --ttx-card: var(--bg-elevated, #fff);
    --ttx-sunk: var(--card-tertiary, #f1f5f9);
    --ttx-open: var(--card-secondary, #f8f9fa);
    --ttx-line: var(--border-color, #e2e8f0);
    --ttx-text-1: var(--text-primary, #1e293b);
    --ttx-text-2: var(--text-secondary, #555);
    --ttx-muted: var(--text-muted, #64748b);
    --ttx-ok: #2f855a;
    --ttx-red: #c23b3b;
    --ttx-red-soft: rgba(230, 78, 78, 0.08);
    --ttx-area-bg: #fcfdfe;
    --ttx-sw-off: #cbd5e1;
}
[data-theme="dark"] .ttx {
    --ttx-accent: #60a5fa;
    --ttx-accent-strong: #93c5fd;
    --ttx-accent-soft: rgba(96, 165, 250, 0.12);
    --ttx-accent-line: rgba(96, 165, 250, 0.5);
    --ttx-go: #2563eb;
    --ttx-go-hover: #1d4ed8;
    --ttx-sunk: #172033;
    --ttx-open: #1a2438;
    --ttx-ok: #4ade80;
    --ttx-red: #f87171;
    --ttx-red-soft: rgba(248, 113, 113, 0.12);
    --ttx-area-bg: #0f172a;
    --ttx-sw-off: #475569;
}

.ttx.tool-container { max-width: 1100px; margin: 0 auto; padding: 2rem; box-sizing: border-box; }
.ttx *, .ttx *::before, .ttx *::after { box-sizing: border-box; }
.ttx [hidden] { display: none !important; }
.ttx .ttx-main { background: none; border: none; box-shadow: none; border-radius: 0; overflow: visible; padding: 0; }
.ttx button { font: inherit; }
.ttx .faq-question { width: 100%; }
.ttx code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.86em; padding: 0.05rem 0.35rem; border-radius: 5px; background: var(--ttx-sunk); color: var(--ttx-text-1); overflow-wrap: anywhere; }

/* ---------- title ---------- */
.ttx .tool-header { text-align: center; margin-bottom: 1.6rem; }
.ttx .tool-title-row { display: flex; align-items: center; justify-content: center; gap: 0.9rem; margin-bottom: 0.9rem; }
.ttx .ttx-title-icon {
    width: 56px; height: 56px; border-radius: 16px; background: var(--ttx-accent); color: #fff;
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
[data-theme="dark"] .ttx .ttx-title-icon { color: #0b1e33; }
.ttx .ttx-title-icon svg { width: 30px; height: 30px; display: block; }
.ttx .tool-title { margin: 0; font-size: clamp(1.55rem, 3.6vw, 2.1rem); font-weight: 700; color: var(--ttx-accent); line-height: 1.2; letter-spacing: -0.01em; }
.ttx .tool-description { max-width: 800px; margin: 0 auto; font-size: 1.05rem; line-height: 1.65; color: var(--ttx-text-2); text-align: center; }

/* ---------- error + toast ---------- */
.ttx .ttx-error {
    display: flex; align-items: flex-start; gap: 0.7rem; margin: 0 0 1rem; padding: 0.9rem 1rem;
    border-radius: 12px; border: 1px solid rgba(230, 78, 78, 0.35); background: var(--ttx-red-soft); color: var(--ttx-text-1);
}
.ttx .ttx-error > svg { width: 20px; height: 20px; color: #e64e4e; flex-shrink: 0; margin-top: 2px; }
.ttx .ttx-error > div { flex: 1; min-width: 0; }
.ttx .ttx-error p { margin: 0; font-size: 0.92rem; line-height: 1.55; overflow-wrap: anywhere; }
.ttx .ttx-error p + p { margin-top: 0.3rem; color: var(--ttx-muted); font-size: 0.86rem; }
.ttx .ttx-error a { color: var(--ttx-red); font-weight: 600; }
.ttx .ttx-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(--ttx-muted); cursor: pointer; padding: 0;
}
.ttx .ttx-x:hover { background: rgba(100, 116, 139, 0.12); color: var(--ttx-text-1); }
.ttx .ttx-x svg { width: 17px; height: 17px; }

.ttx .ttx-toast {
    position: fixed; left: 50%; bottom: 24px; z-index: 9500; transform: translate(-50%, 12px);
    max-width: min(560px, calc(100vw - 32px)); padding: 0.7rem 1.1rem; border-radius: 12px;
    background: #1e293b; color: #f1f5f9; font-size: 0.9rem; line-height: 1.45; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    opacity: 0; transition: opacity 0.2s ease, transform 0.2s ease; pointer-events: none; text-align: center;
}
[data-theme="dark"] .ttx .ttx-toast { background: #f1f5f9; color: #0f172a; }
.ttx .ttx-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- cards + shared ---------- */
.ttx .ttx-card {
    background: var(--ttx-card); border: 1px solid var(--ttx-line); border-radius: 20px;
    padding: 1.25rem; box-shadow: var(--shadow-sm); margin-bottom: 1.1rem; min-width: 0;
}
.ttx .ttx-h { display: inline-flex; align-items: center; gap: 0.45rem; margin: 0; font-size: 1rem; font-weight: 700; color: var(--ttx-text-1); }
.ttx .ttx-h svg { width: 18px; height: 18px; color: var(--ttx-accent); flex-shrink: 0; }
.ttx .ttx-hint { margin: 0.65rem 0 0; font-size: 0.8rem; line-height: 1.55; color: var(--ttx-muted); overflow-wrap: anywhere; }
.ttx .ttx-caption { display: block; margin: 0.2rem 0 0.1rem; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ttx-muted); }

.ttx .ttx-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem; min-height: 42px; padding: 0.55rem 1.05rem;
    border-radius: 11px; border: 1px solid transparent; font-size: 0.92rem; font-weight: 600; cursor: pointer; width: auto;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease; text-decoration: none; white-space: nowrap; line-height: 1.2;
}
.ttx .ttx-btn svg { width: 17px; height: 17px; flex-shrink: 0; }
.ttx .ttx-btn-sm { min-height: 34px; padding: 0.35rem 0.7rem; font-size: 0.84rem; border-radius: 9px; }
.ttx .ttx-btn-sm svg { width: 15px; height: 15px; }
.ttx .ttx-go { background: var(--ttx-go); color: #fff; }
.ttx .ttx-go:hover:not(:disabled) { background: var(--ttx-go-hover); color: #fff; }
.ttx .ttx-go.is-done { background: #2f855a; }
.ttx .ttx-btn-ghost { background: var(--ttx-card); color: var(--ttx-text-2); border-color: var(--ttx-line); }
.ttx .ttx-btn-ghost:hover:not(:disabled) { color: var(--ttx-accent-strong); border-color: var(--ttx-accent-line); background: var(--ttx-accent-soft); }
[data-theme="dark"] .ttx .ttx-btn-ghost:hover:not(:disabled) { color: var(--ttx-accent); }
.ttx .ttx-btn-danger:hover:not(:disabled) { color: var(--ttx-red); border-color: rgba(230, 78, 78, 0.45); background: var(--ttx-red-soft); }
.ttx .ttx-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.ttx .ttx-btn:focus-visible, .ttx .ttx-icon-btn:focus-visible, .ttx .ttx-t:focus-visible, .ttx .ttx-segs button:focus-visible {
    outline: 2px solid var(--ttx-accent); outline-offset: 2px;
}
.ttx .ttx-icon-btn {
    display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; padding: 0; flex-shrink: 0;
    border: 1px solid var(--ttx-line); border-radius: 9px; background: var(--ttx-card); color: var(--ttx-muted); cursor: pointer;
}
.ttx .ttx-icon-btn:hover { color: var(--ttx-accent); border-color: var(--ttx-accent-line); }
.ttx .ttx-icon-btn svg { width: 16px; height: 16px; }

/* ---------- editor ---------- */
.ttx .ttx-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 0.85rem; min-height: 34px; }
.ttx .ttx-tb-left { display: flex; align-items: center; gap: 0.45rem; flex-wrap: wrap; min-width: 0; }
.ttx .ttx-last { font-size: 0.8rem; font-weight: 600; color: var(--ttx-accent-strong); padding-left: 0.2rem; }
[data-theme="dark"] .ttx .ttx-last { color: var(--ttx-accent); }
.ttx .ttx-busy { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.82rem; color: var(--ttx-muted); }

.ttx .ttx-panes { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1rem; }
.ttx .ttx-pane { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--ttx-line); border-radius: 14px; background: var(--ttx-open); overflow: hidden; transition: border-color 0.15s ease; }
.ttx .ttx-pane:focus-within { border-color: var(--ttx-accent-line); }
.ttx .ttx-pane.is-drop { border-color: var(--ttx-accent); border-style: dashed; background: var(--ttx-accent-soft); }
.ttx .ttx-pane-head { display: flex; align-items: center; gap: 0.6rem; padding: 0.55rem 0.65rem 0.55rem 0.9rem; border-bottom: 1px solid var(--ttx-line); min-width: 0; }
.ttx .ttx-pane-title { display: inline-flex; align-items: center; gap: 0.4rem; margin: 0; font-size: 0.9rem; font-weight: 700; color: var(--ttx-text-1); cursor: pointer; flex-shrink: 0; }
.ttx .ttx-pane-title svg { width: 16px; height: 16px; color: var(--ttx-accent); }
.ttx .ttx-pane-meta { flex: 1; min-width: 0; text-align: right; font-size: 0.76rem; color: var(--ttx-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-variant-numeric: tabular-nums; }
.ttx .ttx-area {
    display: block; width: 100%; min-height: 280px; height: 300px; resize: vertical; margin: 0; padding: 0.9rem 1rem;
    border: none; border-radius: 0; background: var(--ttx-area-bg); color: var(--ttx-text-1);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace; font-size: 0.92rem; line-height: 1.6;
    tab-size: 4; outline: none; box-shadow: none; overflow-wrap: anywhere;
}
.ttx .ttx-area::placeholder { color: var(--ttx-muted); opacity: 0.85; }
.ttx .ttx-pane-foot { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; padding: 0.55rem 0.65rem; border-top: 1px solid var(--ttx-line); }

.ttx .ttx-pane.is-expanded {
    position: fixed; inset: 16px; z-index: 9200; background: var(--ttx-card); box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
}
.ttx .ttx-pane.is-expanded .ttx-area { flex: 1; height: auto; min-height: 0; resize: none; }
.ttx .ttx-overlay { position: fixed; inset: 0; z-index: 9100; background: rgba(0, 0, 0, 0.55); }

.ttx .ttx-stats {
    display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 0.5rem; margin: 0.95rem 0 0;
}
.ttx .ttx-stats > div { min-width: 0; padding: 0.5rem 0.55rem; border-radius: 10px; background: var(--ttx-sunk); text-align: center; }
.ttx .ttx-stats dt { margin: 0; font-size: 0.66rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ttx-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ttx .ttx-stats dd { margin: 0.1rem 0 0; font-size: 1.02rem; font-weight: 700; color: var(--ttx-text-1); font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- transforms ---------- */
.ttx .ttx-tr-head { display: flex; align-items: center; justify-content: space-between; gap: 0.8rem; flex-wrap: wrap; margin-bottom: 0.95rem; }
.ttx .ttx-filter {
    display: flex; align-items: center; gap: 0.45rem; flex: 0 1 280px; min-width: 0; padding: 0 0.7rem; height: 38px;
    border: 1px solid var(--ttx-line); border-radius: 10px; background: var(--ttx-area-bg); color: var(--ttx-muted);
}
.ttx .ttx-filter:focus-within { border-color: var(--ttx-accent-line); }
.ttx .ttx-filter svg { width: 15px; height: 15px; flex-shrink: 0; }
.ttx .ttx-filter input {
    flex: 1; min-width: 0; width: 100%; height: 100%; border: none; background: none; padding: 0; margin: 0;
    font-size: 0.88rem; color: var(--ttx-text-1); outline: none; box-shadow: none;
}
.ttx .ttx-group + .ttx-group { margin-top: 1rem; }
.ttx .ttx-gh { display: flex; align-items: center; gap: 0.4rem; margin: 0 0 0.5rem; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ttx-muted); }
.ttx .ttx-gh svg { width: 14px; height: 14px; color: var(--ttx-accent); }
.ttx .ttx-featured { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.6rem; }
.ttx .ttx-t { cursor: pointer; transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease; }
.ttx .ttx-feat {
    display: flex; flex-direction: column; align-items: flex-start; gap: 0.15rem; min-width: 0; padding: 0.7rem 0.85rem; text-align: left;
    border: 1px solid var(--ttx-line); border-radius: 12px; background: var(--ttx-open); color: var(--ttx-text-1); width: 100%;
}
.ttx .ttx-feat-name { font-size: 0.95rem; font-weight: 700; color: var(--ttx-text-1); }
.ttx .ttx-feat-ex { font-size: 0.76rem; color: var(--ttx-muted); max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.ttx .ttx-feat:hover { border-color: var(--ttx-accent-line); background: var(--ttx-accent-soft); transform: translateY(-1px); }
.ttx .ttx-chips { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.ttx .ttx-chip {
    padding: 0.42rem 0.8rem; border: 1px solid var(--ttx-line); border-radius: 999px; background: var(--ttx-card);
    color: var(--ttx-text-2); font-size: 0.85rem; font-weight: 500; line-height: 1.3; width: auto; max-width: 100%;
}
.ttx .ttx-chip:hover { border-color: var(--ttx-accent-line); color: var(--ttx-accent-strong); background: var(--ttx-accent-soft); }
[data-theme="dark"] .ttx .ttx-chip:hover { color: var(--ttx-accent); }
.ttx .ttx-t.is-last { border-color: var(--ttx-accent); background: var(--ttx-accent-soft); box-shadow: inset 0 0 0 1px var(--ttx-accent); }
.ttx .ttx-chip.is-last { color: var(--ttx-accent-strong); }
[data-theme="dark"] .ttx .ttx-chip.is-last { color: var(--ttx-accent); }
.ttx .ttx-nomatch { margin: 0.4rem 0 0; font-size: 0.88rem; color: var(--ttx-muted); }
.ttx .ttx-nomatch a { color: var(--ttx-accent-strong); font-weight: 600; }
.ttx.is-empty .ttx-transforms .ttx-t { opacity: 0.72; }
.ttx.is-empty .ttx-transforms .ttx-t:hover { opacity: 1; }

/* ---------- find & replace ---------- */
.ttx .ttx-fr-head { display: flex; align-items: center; justify-content: space-between; gap: 0.6rem; margin-bottom: 0.85rem; flex-wrap: wrap; }
.ttx .ttx-matches { font-size: 0.78rem; font-weight: 700; color: var(--ttx-muted); padding: 0.15rem 0.55rem; border-radius: 6px; }
.ttx .ttx-matches:empty { display: none; }
.ttx .ttx-matches.is-hit { color: var(--ttx-ok); background: rgba(51, 153, 102, 0.1); }
.ttx .ttx-matches.is-bad { color: var(--ttx-red); background: var(--ttx-red-soft); }
.ttx .ttx-fr-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; gap: 0.7rem; align-items: end; }
.ttx .ttx-field { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; margin: 0; }
.ttx .ttx-field > span { font-size: 0.78rem; font-weight: 700; color: var(--ttx-text-1); }
.ttx .ttx-field input {
    width: 100%; height: 42px; padding: 0 0.8rem; margin: 0; border: 1px solid var(--ttx-line); border-radius: 10px;
    background: var(--ttx-area-bg); color: var(--ttx-text-1); font-size: 0.92rem; outline: none; box-shadow: none;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.ttx .ttx-field input:focus { border-color: var(--ttx-accent); box-shadow: 0 0 0 3px var(--ttx-accent-soft); }
.ttx .ttx-fr-switches { display: flex; flex-wrap: wrap; gap: 0.5rem 1.4rem; margin-top: 0.9rem; }

/* ---------- switches (override the global checkbox styling) ---------- */
.ttx .ttx-sw { display: inline-flex; align-items: center; gap: 0.55rem; margin: 0; font-size: 0.86rem; font-weight: 500; color: var(--ttx-text-1); cursor: pointer; line-height: 1.35; min-width: 0; }
.ttx .ttx-sw-right { flex-shrink: 0; }
.ttx .ttx-switch-state { font-size: 0.7rem; font-weight: 800; letter-spacing: 0.05em; color: var(--ttx-muted); min-width: 1.9em; }
.ttx .ttx-sw input:checked ~ .ttx-switch-state { color: var(--ttx-accent-strong); }
[data-theme="dark"] .ttx .ttx-sw input:checked ~ .ttx-switch-state { color: var(--ttx-accent); }
.tool-container input[type="checkbox"].ttx-switch,
input[type="checkbox"].ttx-switch {
    -webkit-appearance: none !important; -moz-appearance: none !important; appearance: none !important;
    box-sizing: border-box !important; position: relative !important; display: inline-block !important;
    width: 40px !important; min-width: 40px !important; max-width: 40px !important;
    height: 22px !important; min-height: 22px !important; padding: 0 !important; margin: 0 !important;
    border: 1px solid var(--ttx-sw-off, #cbd5e1) !important; border-radius: 999px !important;
    background: var(--ttx-sw-off, #cbd5e1) !important; background-color: var(--ttx-sw-off, #cbd5e1) !important;
    box-shadow: none !important; cursor: pointer !important; flex-shrink: 0 !important; outline: none !important;
    transition: background-color 0.2s ease, border-color 0.2s ease !important;
}
.tool-container input[type="checkbox"].ttx-switch:checked,
input[type="checkbox"].ttx-switch:checked {
    background: var(--ttx-go, #237a9f) !important; background-color: var(--ttx-go, #237a9f) !important; border-color: var(--ttx-go, #237a9f) !important;
}
.tool-container input[type="checkbox"].ttx-switch::after,
.tool-container input[type="checkbox"].ttx-switch:checked::after,
input[type="checkbox"].ttx-switch::after,
input[type="checkbox"].ttx-switch:checked::after {
    content: '' !important; position: absolute !important; top: 2px !important; left: 2px !important; right: auto !important; bottom: auto !important;
    width: 16px !important; height: 16px !important; margin: 0 !important; padding: 0 !important; font-size: 0 !important;
    border-radius: 50% !important; border: none !important; background: #fff !important; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25) !important;
    transform: none !important; transition: transform 0.2s ease !important;
}
.tool-container input[type="checkbox"].ttx-switch:checked::after,
input[type="checkbox"].ttx-switch:checked::after { transform: translateX(18px) !important; }
.tool-container input[type="checkbox"].ttx-switch:focus-visible,
input[type="checkbox"].ttx-switch:focus-visible { outline: 2px solid var(--ttx-accent, #3399cc) !important; outline-offset: 2px !important; }

/* ---------- options (adv rows) ---------- */
.ttx .adv-options { background: var(--ttx-card); border: 1px solid var(--ttx-line); border-radius: 16px; overflow: hidden; margin-bottom: 1.1rem; }
.ttx .adv-row + .adv-row { border-top: 1px solid var(--ttx-line); }
.ttx .adv-row-head, .ttx .adv-row-static {
    display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; width: 100%; min-height: 54px;
    padding: 0.6rem 0.95rem; background: none; border: none; text-align: left; color: var(--ttx-text-1);
}
.ttx .adv-row-head { cursor: pointer; transition: background-color 0.15s ease; }
.ttx .adv-row-head:hover, .ttx .adv-row.open .adv-row-head { background: var(--ttx-open); }
.ttx .adv-row-head:focus-visible { outline: 2px solid var(--ttx-accent); outline-offset: -2px; }
.ttx .adv-row-left { display: inline-flex; align-items: center; gap: 0.6rem; flex: 1 1 auto; min-width: 0; }
.ttx .adv-row-left > svg { width: 17px; height: 17px; color: var(--ttx-accent); flex-shrink: 0; }
.ttx .adv-row-text { display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; }
.ttx .adv-row-title { font-size: 0.88rem; font-weight: 600; color: var(--ttx-text-1); }
.ttx .adv-row-hint { font-size: 0.74rem; line-height: 1.4; color: var(--ttx-muted); }
.ttx .adv-row-right { display: inline-flex; align-items: center; gap: 0.55rem; flex-shrink: 0; }
.ttx .adv-value {
    font-size: 0.76rem; font-weight: 700; color: var(--ttx-accent-strong); background: var(--ttx-accent-soft); border-radius: 6px;
    padding: 0.15rem 0.5rem; max-width: 190px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
[data-theme="dark"] .ttx .adv-value { color: var(--ttx-accent); }
.ttx .adv-chevron { width: 17px; height: 17px; color: var(--ttx-muted); transition: transform 0.2s ease; }
.ttx .adv-row.open .adv-chevron { transform: rotate(180deg); }
.ttx .adv-row-body { display: flex; flex-direction: column; gap: 0.65rem; padding: 0.35rem 0.95rem 1rem 2.55rem; background: var(--ttx-open); }
.ttx .ttx-segs { display: inline-flex; flex-wrap: wrap; gap: 0.3rem; padding: 0.25rem; border-radius: 10px; background: var(--ttx-sunk); align-self: flex-start; max-width: 100%; }
.ttx .ttx-segs button { border: none; border-radius: 8px; padding: 0.4rem 0.85rem; background: none; color: var(--ttx-text-2); font-size: 0.84rem; font-weight: 600; cursor: pointer; width: auto; }
.ttx .ttx-segs button.is-active { background: var(--ttx-card); color: var(--ttx-accent-strong); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12); }
[data-theme="dark"] .ttx .ttx-segs button.is-active { color: var(--ttx-accent); background: #1e293b; }
.ttx .ttx-keys { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.4rem 1.2rem; margin: 0; padding: 0; list-style: none; font-size: 0.85rem; color: var(--ttx-text-2); }
.ttx kbd {
    display: inline-block; padding: 0.05rem 0.4rem; margin-right: 0.3rem; border: 1px solid var(--ttx-line); border-bottom-width: 2px; border-radius: 6px;
    background: var(--ttx-card); color: var(--ttx-text-1); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.76rem; white-space: nowrap;
}
.ttx .ttx-actions { display: flex; justify-content: flex-end; margin-bottom: 0.5rem; }

/* ---------- loader (ConvertICO rings) ---------- */
.ttx .ttx-loader {
    display: block; 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"] .ttx .ttx-loader { --cico-outer-soft: rgba(242, 83, 78, 0.22); --cico-mid-soft: rgba(49, 174, 119, 0.22); }
.ttx .ttx-loader circle { fill: none; stroke-width: 72; transform-box: fill-box; transform-origin: center; }
.ttx .ttx-loader .bp { stroke: var(--cico-outer-soft); }
.ttx .ttx-loader .gp { stroke: var(--cico-mid-soft); }
.ttx .ttx-loader .b { stroke: var(--cico-outer); stroke-linecap: round; stroke-dasharray: 35.3 100; animation: ttxSpinL 1.3s linear infinite; }
.ttx .ttx-loader .g { stroke: var(--cico-mid); stroke-linecap: round; stroke-dasharray: 75.8 100; animation: ttxSpinR 2.1s linear infinite; }
.ttx .ttx-loader .r { stroke: var(--cico-inner); animation: ttxBreathe 1.3s ease-in-out infinite; }
@keyframes ttxSpinL { from { transform: rotate(117deg); } to { transform: rotate(-243deg); } }
@keyframes ttxSpinR { from { transform: rotate(36deg); } to { transform: rotate(396deg); } }
@keyframes ttxBreathe { 50% { transform: scale(0.9); } }
@media (prefers-reduced-motion: reduce) {
    .ttx .ttx-loader .b { animation-duration: 4s; }
    .ttx .ttx-loader .g { animation-duration: 6s; }
    .ttx .ttx-loader .r { animation: none; }
    .ttx .ttx-feat:hover { transform: none; }
}

/* ---------- related ---------- */
.ttx .related-tools { margin: 1.4rem 0 1.6rem; }

/* ---------- info ---------- */
.ttx .ttx-info { display: grid; gap: 1.1rem; }
.ttx .ttx-info-card {
    background: var(--ttx-card); border: 1px solid var(--ttx-line); border-radius: 16px; padding: 1.35rem 1.4rem; min-width: 0;
}
.ttx .ttx-info-card h2 { display: flex; align-items: center; gap: 0.55rem; margin: 0 0 0.85rem; font-size: 1.22rem; font-weight: 700; color: var(--ttx-text-1); line-height: 1.3; }
.ttx .ttx-info-card h2 svg { width: 21px; height: 21px; color: var(--ttx-accent); flex-shrink: 0; }
.ttx .ttx-info-card > p { margin: 0.75rem 0 0; font-size: 0.97rem; line-height: 1.7; color: var(--ttx-text-2); }
.ttx .ttx-info-card h2 + p { margin-top: 0; }
.ttx .ttx-info-card a { color: var(--ttx-accent-strong); font-weight: 600; text-decoration: none; }
.ttx .ttx-info-card a:hover { text-decoration: underline; }
[data-theme="dark"] .ttx .ttx-info-card a { color: var(--ttx-accent); }
.ttx .ttx-steps, .ttx .ttx-list { margin: 0; padding-left: 1.3rem; display: grid; gap: 0.55rem; font-size: 0.97rem; line-height: 1.65; color: var(--ttx-text-2); }
.ttx .ttx-list { margin-top: 0.75rem; }
.ttx .ttx-steps strong, .ttx .ttx-list strong { color: var(--ttx-text-1); }
.ttx .ttx-table-wrap { overflow-x: auto; border: 1px solid var(--ttx-line); border-radius: 12px; }
.ttx .ttx-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.ttx .ttx-table th, .ttx .ttx-table td { padding: 0.55rem 0.8rem; text-align: left; border-bottom: 1px solid var(--ttx-line); color: var(--ttx-text-2); vertical-align: top; }
.ttx .ttx-table th { background: var(--ttx-open); color: var(--ttx-text-1); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; }
.ttx .ttx-table tr:last-child td { border-bottom: none; }
.ttx .ttx-table td:first-child { font-weight: 600; color: var(--ttx-text-1); white-space: nowrap; }
.ttx .faq-answer a { font-weight: 600; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
    .ttx .ttx-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
    .ttx .ttx-panes { grid-template-columns: minmax(0, 1fr); }
    .ttx .ttx-featured { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ttx .ttx-area { min-height: 200px; height: 220px; }
}
@media (max-width: 640px) {
    .ttx.tool-container { padding: 1.1rem 16px 1.5rem; }
    .ttx .tool-title-row { gap: 0.7rem; }
    .ttx .ttx-title-icon { width: 46px; height: 46px; border-radius: 13px; }
    .ttx .ttx-title-icon svg { width: 25px; height: 25px; }
    .ttx .tool-title { text-align: left; }
    .ttx .tool-description { font-size: 0.97rem; }
    .ttx .ttx-card { padding: 0.95rem; border-radius: 16px; }
    .ttx .ttx-fr-grid { grid-template-columns: minmax(0, 1fr); }
    .ttx .ttx-fr-grid .ttx-btn { width: 100%; }
    .ttx .ttx-filter { flex: 1 1 100%; }
    .ttx .ttx-keys { grid-template-columns: minmax(0, 1fr); }
    .ttx .adv-row-body { padding-left: 0.95rem; }
    .ttx .ttx-info-card { padding: 1.1rem 1rem; }
    .ttx .ttx-pane.is-expanded { inset: 8px; }
    .ttx .ttx-feat { padding: 0.6rem 0.7rem; }
    .ttx .ttx-feat-name { font-size: 0.9rem; }
    .ttx .ttx-fr-switches { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem 0.8rem; }
    .ttx .ttx-table thead { display: none; }
    .ttx .ttx-table tr { display: grid; grid-template-columns: minmax(0, auto) minmax(0, 1fr); gap: 0.15rem 0.7rem; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--ttx-line); }
    .ttx .ttx-table tr:last-child { border-bottom: none; }
    .ttx .ttx-table td { padding: 0; border: none; }
    .ttx .ttx-table td:nth-child(2) { text-align: right; }
    .ttx .ttx-table td:nth-child(3) { grid-column: 1 / -1; font-size: 0.85rem; }
    .ttx .ttx-table code { overflow-wrap: normal; white-space: normal; }
}
@media (max-width: 420px) {
    .ttx .ttx-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ttx .ttx-pane-foot .ttx-btn-sm { padding: 0.35rem 0.55rem; }
}