/* ====================================================================
   IO-THEME-CREATOR.CSS — Visual Theme Builder (m4 layout)
   Scoped with tc- prefix. Uses --io-* vars exclusively.
   ==================================================================== */

/* ── Shell ────────────────────────────────────────────────────────── */

.tc-shell {
    width: 1480px;
    max-width: 96vw;
    height: 865px;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--io-surface-base);
    color: var(--io-text-primary);
    font-family: var(--io-font-mono);
    font-size: var(--io-text-13);
    line-height: 1.4;
}

/* ── Top tabs ─────────────────────────────────────────────────────── */

.tc-tabs {
    display: flex;
    align-items: stretch;
    background: var(--io-surface-sunken);
    border-bottom: 1px solid var(--io-border);
    flex-shrink: 0;
}
.tc-tab {
    all: unset;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    color: var(--io-text-tertiary);
    font-family: inherit;
    font-size: var(--io-text-11);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    cursor: pointer;
    border-right: 1px solid var(--io-border);
    border-bottom: 2px solid transparent;
    transition: color var(--io-transition-fast), background var(--io-transition-fast), border-color var(--io-transition-fast);
    user-select: none;
}
.tc-tab:hover {
    color: var(--io-text-secondary);
    background: var(--io-surface-base);
}
.tc-tab.active {
    color: var(--io-accent);
    background: var(--io-surface-base);
    border-bottom-color: var(--io-accent);
}
.tc-tab small {
    color: var(--io-text-tertiary);
    font-size: var(--io-text-9);
    margin-left: 4px;
}
.tc-tab.active small { color: var(--io-accent-dim); }

.tc-tab-meta {
    margin-left: auto;
    padding: 0 16px;
    color: var(--io-text-tertiary);
    font-size: var(--io-text-11);
    align-self: center;
    display: flex;
    gap: 16px;
}
.tc-tab-meta b { color: var(--io-accent); font-weight: 500; }
.tc-tab-meta .tc-dirty {
    color: var(--io-warning);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}
.tc-tab-meta .tc-dirty::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--io-warning);
    box-shadow: 0 0 6px var(--io-warning);
}

/* ── Toolbar ──────────────────────────────────────────────────────── */

.tc-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--io-surface-base);
    border-bottom: 1px solid var(--io-border-subtle);
    flex-shrink: 0;
}
.tc-toolbar .tc-group {
    display: flex;
    align-items: center;
    border: 1px solid var(--io-border);
}
.tc-toolbar .tc-group .tc-btn {
    border: none;
    border-right: 1px solid var(--io-border);
    padding: 5px 12px;
}
.tc-toolbar .tc-group .tc-btn:last-child { border-right: none; }
.tc-toolbar .tc-spacer { flex: 1; }

.tc-input {
    background: var(--io-surface-sunken);
    border: 1px solid var(--io-border);
    color: var(--io-text-primary);
    padding: 6px 10px;
    font-family: inherit;
    font-size: var(--io-text-12);
    outline: none;
    transition: border-color var(--io-transition-fast);
    min-width: 0;
}
.tc-input:focus { border-color: var(--io-accent); }
.tc-input::placeholder { color: var(--io-text-tertiary); }
.tc-input.named {
    flex: 0 1 280px;
    letter-spacing: 0.04em;
}

.tc-btn {
    all: unset;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--io-border);
    color: var(--io-text-secondary);
    padding: 5px 12px;
    font-family: inherit;
    font-size: var(--io-text-11);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    user-select: none;
    transition: color var(--io-transition-fast), background var(--io-transition-fast), border-color var(--io-transition-fast);
    white-space: nowrap;
}
.tc-btn:hover { border-color: var(--io-accent); color: var(--io-accent); }
.tc-btn:active { background: var(--io-accent-subtle); }
.tc-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.tc-btn:disabled:hover { border-color: var(--io-border); color: var(--io-text-secondary); }
.tc-btn.active {
    border-color: var(--io-accent);
    color: var(--io-accent);
    background: var(--io-accent-subtle);
}
.tc-btn.primary {
    background: var(--io-accent);
    border-color: var(--io-accent);
    color: var(--io-on-accent);
    font-weight: 600;
}
.tc-btn.primary:hover {
    background: var(--io-accent-bright);
    border-color: var(--io-accent-bright);
    color: var(--io-on-accent);
}
.tc-btn.icon { padding: 5px 8px; }

/* ── Body ─────────────────────────────────────────────────────────── */

.tc-body {
    flex: 1;
    background: var(--io-surface-base);
    overflow: hidden;
    min-height: 0;
}

.tc-view {
    height: 100%;
    overflow: hidden;
}
.tc-view[hidden] { display: none; }

/* ── EDITOR view: 3-col grid ──────────────────────────────────────── */

.tc-editor {
    display: grid;
    grid-template-columns: 340px 1fr 360px;
    height: 100%;
    min-height: 0;
}
.tc-panel {
    border-right: 1px solid var(--io-border);
    overflow-y: auto;
    min-width: 0;
    min-height: 0;
}
.tc-panel:last-child { border-right: none; }

/* themed scrollbars */
.tc-panel::-webkit-scrollbar { width: 6px; height: 6px; }
.tc-panel::-webkit-scrollbar-track { background: var(--io-surface-sunken); }
.tc-panel::-webkit-scrollbar-thumb { background: var(--io-border); }
.tc-panel::-webkit-scrollbar-thumb:hover { background: var(--io-accent-dim); }

/* ── Section header (sticky, sidebar) ─────────────────────────────── */

.tc-section {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px 8px;
    background: var(--io-surface-sunken);
    border-bottom: 1px solid var(--io-border-subtle);
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    position: sticky;
    top: 0;
    z-index: 3;
}
.tc-section::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--io-accent);
    box-shadow: 0 0 6px var(--io-accent-glow);
    flex-shrink: 0;
}
.tc-section b {
    color: var(--io-accent);
    font-weight: 500;
    margin-left: auto;
    letter-spacing: 0.08em;
}
.tc-section-body { padding: 14px 16px; }

/* ── Color picker (CSS-only, no canvas) ───────────────────────────── */

.tc-picker {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}
.tc-pick-sq {
    flex: 1;
    aspect-ratio: 1.6;
    background:
        linear-gradient(to bottom, transparent 0%, #000 100%),
        linear-gradient(to right, #fff 0%, var(--picker-hue, var(--io-accent)) 100%);
    border: 1px solid var(--io-border);
    position: relative;
    cursor: crosshair;
    user-select: none;
}
.tc-pick-cross {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px #000, 0 0 8px rgba(0,0,0,0.6);
    transform: translate(-50%, -50%);
    pointer-events: none;
}
.tc-pick-hue {
    width: 14px;
    border: 1px solid var(--io-border);
    background: linear-gradient(to bottom,
        #ff0000 0%, #ffff00 17%, #00ff00 33%,
        #00ffff 50%, #0000ff 67%, #ff00ff 83%, #ff0000 100%);
    position: relative;
    cursor: ns-resize;
    user-select: none;
}
.tc-pick-mark {
    position: absolute;
    left: -3px;
    right: -3px;
    height: 4px;
    border: 1px solid #000;
    background: #fff;
    transform: translateY(-50%);
    pointer-events: none;
}

/* ── Hex row ──────────────────────────────────────────────────────── */

.tc-hex-row {
    display: flex;
    gap: 6px;
    align-items: center;
    margin-bottom: 12px;
}
.tc-swatch {
    width: 28px;
    height: 28px;
    border: 1px solid var(--io-border);
    flex-shrink: 0;
    background: var(--swatch-color, var(--io-accent));
}
.tc-hex {
    flex: 1;
    background: var(--io-surface-sunken);
    border: 1px solid var(--io-border);
    color: var(--io-text-primary);
    padding: 5px 8px;
    font-family: inherit;
    font-size: var(--io-text-12);
    letter-spacing: 0.08em;
    outline: none;
    text-transform: uppercase;
}
.tc-hex:focus { border-color: var(--io-accent); }
.tc-eyedrop {
    all: unset;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--io-border);
    color: var(--io-text-secondary);
    cursor: pointer;
    font-size: var(--io-text-14);
    transition: color var(--io-transition-fast), border-color var(--io-transition-fast);
}
.tc-eyedrop:hover { border-color: var(--io-accent); color: var(--io-accent); }
.tc-eyedrop[hidden] { display: none; }

/* ── Mode switch (DARK / TINTED / LIGHT) ──────────────────────────── */

.tc-modes {
    display: flex;
    border: 1px solid var(--io-border);
    margin-bottom: 12px;
}
.tc-mode {
    flex: 1;
    padding: 6px 0;
    text-align: center;
    color: var(--io-text-secondary);
    font-size: var(--io-text-10);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    cursor: pointer;
    border-right: 1px solid var(--io-border);
    user-select: none;
    transition: color var(--io-transition-fast), background var(--io-transition-fast);
}
.tc-mode:last-child { border-right: none; }
.tc-mode:hover { color: var(--io-accent); }
.tc-mode.active {
    color: var(--io-accent);
    background: var(--io-accent-subtle);
}

/* ── Preset row ──────────────────────────────────────────────────── */

.tc-presets {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
}
.tc-preset {
    aspect-ratio: 1;
    border: 1px solid var(--io-border);
    cursor: pointer;
    position: relative;
    transition: transform var(--io-transition-fast), border-color var(--io-transition-fast);
}
.tc-preset:hover {
    border-color: var(--io-accent);
    transform: scale(1.08);
    z-index: 2;
}
.tc-preset.active {
    border-color: var(--io-accent);
    box-shadow: 0 0 0 1px var(--io-accent), 0 0 8px var(--io-accent-glow);
}

/* ── Derived chips list (read-only output of generator) ───────────── */

.tc-derived {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 12px;
}
.tc-d-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 6px;
    border: 1px solid transparent;
}
.tc-d-row:hover { border-color: var(--io-border); background: var(--io-surface-raised); }
.tc-d-chip {
    width: 18px;
    height: 18px;
    border: 1px solid var(--io-border);
    flex-shrink: 0;
    background: var(--chip);
}
.tc-d-name {
    flex: 1;
    color: var(--io-text-secondary);
    font-size: var(--io-text-11);
    letter-spacing: 0.04em;
}
.tc-d-val {
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.06em;
}

/* ── Surface strip (5 cells: sunken/base/raised/overlay/hover) ───── */

.tc-surf-strip {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    border: 1px solid var(--io-border);
    margin-bottom: 12px;
}
.tc-surf-cell {
    aspect-ratio: 1;
    background: var(--cell);
    border-right: 1px solid var(--io-border);
    position: relative;
}
.tc-surf-cell:last-child { border-right: none; }
.tc-surf-label {
    position: absolute;
    bottom: 4px;
    left: 4px;
    right: 4px;
    color: var(--io-text-tertiary);
    font-size: var(--io-text-8);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-shadow: 0 0 4px #000;
}
.tc-surf-hex {
    position: absolute;
    top: 4px;
    left: 4px;
    color: var(--io-text-secondary);
    font-size: var(--io-text-8);
    text-shadow: 0 0 4px #000;
}

/* ── Sliders (Step / Tint / Glow α) ───────────────────────────────── */

.tc-sld {
    display: grid;
    grid-template-columns: 60px 1fr 36px;
    gap: 10px;
    align-items: center;
    margin-bottom: 8px;
}
.tc-sld-lbl {
    color: var(--io-text-secondary);
    font-size: var(--io-text-11);
    letter-spacing: 0.04em;
}
.tc-sld-track {
    height: 4px;
    background: var(--io-surface-sunken);
    border: 1px solid var(--io-border);
    position: relative;
    cursor: pointer;
    user-select: none;
}
.tc-sld-fill {
    position: absolute;
    left: -1px;
    top: -1px;
    bottom: -1px;
    background: var(--io-accent);
    box-shadow: 0 0 6px var(--io-accent-glow);
    pointer-events: none;
}
.tc-sld-thumb {
    position: absolute;
    top: 50%;
    width: 10px;
    height: 14px;
    background: var(--io-accent);
    border: 1px solid var(--io-on-accent);
    transform: translate(-50%, -50%);
    box-shadow: 0 0 6px var(--io-accent-glow);
    pointer-events: none;
}
.tc-sld-val {
    color: var(--io-accent);
    font-size: var(--io-text-11);
    text-align: right;
    letter-spacing: 0.04em;
}

/* ── Preview pane (kitchen sink) ──────────────────────────────────── */

.tc-preview-wrap {
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.tc-preview-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* The preview block reads ONLY --pv-* vars — mirror the live edited theme */
.tc-preview {
    background: var(--pv-bg, var(--io-surface-base));
    border: 1px solid var(--pv-border, var(--io-border));
    color: var(--pv-text, var(--io-text-primary));
    font-family: inherit;
    overflow: hidden;
}
.pv-titlebar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: var(--pv-sunken);
    border-bottom: 1px solid var(--pv-border);
    font-size: var(--io-text-11);
    letter-spacing: 0.1em;
}
.pv-titlebar .dot {
    width: 8px; height: 8px;
    background: var(--pv-accent);
    box-shadow: 0 0 6px var(--pv-accent-glow);
}
.pv-titlebar .name {
    color: var(--pv-text-2);
    text-transform: uppercase;
}
.pv-titlebar .name b { color: var(--pv-accent); font-weight: 600; }
.pv-titlebar .stats {
    margin-left: auto;
    color: var(--pv-text-3);
    font-size: var(--io-text-10);
    display: flex;
    gap: 12px;
}

.pv-tabs {
    display: flex;
    background: var(--pv-bg);
    border-bottom: 1px solid var(--pv-border);
}
.pv-tab {
    padding: 8px 14px;
    font-size: var(--io-text-10);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--pv-text-3);
    border-right: 1px solid var(--pv-border);
    border-bottom: 2px solid transparent;
}
.pv-tab.active {
    color: var(--pv-accent);
    border-bottom-color: var(--pv-accent);
    background: var(--pv-surface);
}
.pv-tab.dim { color: var(--pv-text-3); opacity: 0.6; }

.pv-grid {
    display: grid;
    grid-template-columns: 200px 1fr;
}
.pv-side {
    background: var(--pv-surface);
    border-right: 1px solid var(--pv-border);
    padding: 10px;
}
.pv-side .pv-side-h {
    color: var(--pv-text-3);
    font-size: var(--io-text-9);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin: 4px 0 6px;
}
.pv-side-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 6px;
    color: var(--pv-text-2);
    font-size: var(--io-text-11);
}
.pv-side-item::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--pv-text-3);
    flex-shrink: 0;
}
.pv-side-item.active {
    background: var(--pv-accent);
    color: var(--pv-on-accent);
    font-weight: 600;
}
.pv-side-item.active::before { background: var(--pv-on-accent); }
.pv-side-item .badge {
    margin-left: auto;
    background: var(--pv-overlay);
    color: var(--pv-text-3);
    padding: 1px 6px;
    font-size: var(--io-text-9);
    border: 1px solid var(--pv-border);
}
.pv-side-item.active .badge {
    background: var(--pv-on-accent);
    color: var(--pv-accent);
    border-color: var(--pv-on-accent);
}

.pv-main {
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.pv-h1 {
    color: var(--pv-accent);
    font-size: var(--io-text-16);
    letter-spacing: 0.05em;
    font-weight: 600;
}
.pv-h2 {
    color: var(--pv-text-2);
    font-size: var(--io-text-11);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.pv-p { color: var(--pv-text); font-size: var(--io-text-12); line-height: 1.5; }
.pv-p .muted { color: var(--pv-text-2); }
.pv-p .dim { color: var(--pv-text-3); }

.pv-alerts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.pv-alert {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--pv-overlay);
    border-left: 3px solid var(--c);
    font-size: var(--io-text-11);
    color: var(--c);
}
.pv-alert::before { content: '●'; font-size: var(--io-text-10); }

.pv-code {
    background: var(--pv-sunken);
    border: 1px solid var(--pv-border);
    padding: 8px 10px;
    font-size: var(--io-text-10);
    color: var(--pv-text-2);
    line-height: 1.6;
}
.pv-code .k { color: var(--pv-accent); }
.pv-code .s { color: var(--pv-success); }
.pv-code .e { color: var(--pv-error); }
.pv-code .c { color: var(--pv-text-3); }

.pv-table {
    width: 100%;
    border: 1px solid var(--pv-border);
    border-collapse: collapse;
    font-size: var(--io-text-11);
}
.pv-table th {
    text-align: left;
    background: var(--pv-sunken);
    color: var(--pv-text-3);
    font-weight: 500;
    font-size: var(--io-text-9);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 5px 8px;
    border-bottom: 1px solid var(--pv-border);
}
.pv-table td {
    padding: 5px 8px;
    color: var(--pv-text);
    border-bottom: 1px solid var(--pv-border-2);
}
.pv-table tr:hover td { background: var(--pv-hover); }
.pv-table .ok { color: var(--pv-success); }
.pv-table .err { color: var(--pv-error); }
.pv-table .warn { color: var(--pv-warning); }

.pv-form-row { display: flex; gap: 8px; align-items: center; }
.pv-input {
    background: var(--pv-sunken);
    border: 1px solid var(--pv-border);
    color: var(--pv-text);
    padding: 5px 8px;
    font-size: var(--io-text-11);
    flex: 1;
    font-family: inherit;
    outline: none;
}
.pv-input:focus { border-color: var(--pv-accent); }
.pv-btn {
    all: unset;
    padding: 5px 12px;
    background: transparent;
    border: 1px solid var(--pv-border);
    color: var(--pv-text-2);
    font-size: var(--io-text-11);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    font-family: inherit;
}
.pv-btn:hover { color: var(--pv-accent); border-color: var(--pv-accent); }
.pv-btn.primary {
    background: var(--pv-accent);
    color: var(--pv-on-accent);
    border-color: var(--pv-accent);
    font-weight: 600;
}
.pv-btn.primary:hover { background: var(--pv-accent-bright); }

.pv-bars { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.pv-bar {
    background: var(--pv-surface);
    border: 1px solid var(--pv-border);
    padding: 8px 10px;
}
.pv-bar-label {
    color: var(--pv-text-3);
    font-size: var(--io-text-9);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.pv-bar-val {
    color: var(--pv-text);
    font-size: var(--io-text-18);
    font-weight: 600;
    margin: 2px 0 6px;
}
.pv-bar-track {
    height: 3px;
    background: var(--pv-border);
    position: relative;
}
.pv-bar-track i {
    display: block;
    height: 100%;
    background: var(--pv-accent);
    box-shadow: 0 0 6px var(--pv-accent-glow);
}

.pv-status {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 5px 12px;
    background: var(--pv-sunken);
    border-top: 1px solid var(--pv-border);
    color: var(--pv-text-3);
    font-size: var(--io-text-9);
    letter-spacing: 0.08em;
}
.pv-status .dot {
    width: 5px; height: 5px;
    background: var(--pv-success);
    border-radius: 50%;
    box-shadow: 0 0 4px var(--pv-success);
}

/* ── Right rail ───────────────────────────────────────────────────── */

.tc-rail-tabs {
    display: flex;
    background: var(--io-surface-sunken);
    border-bottom: 1px solid var(--io-border-subtle);
    flex-shrink: 0;
}
.tc-rail-tab {
    flex: 1;
    padding: 8px;
    text-align: center;
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    border-right: 1px solid var(--io-border-subtle);
    cursor: pointer;
    user-select: none;
    transition: color var(--io-transition-fast), background var(--io-transition-fast);
}
.tc-rail-tab:last-child { border-right: none; }
.tc-rail-tab:hover { color: var(--io-text-secondary); }
.tc-rail-tab.active {
    color: var(--io-accent);
    background: var(--io-surface-base);
    box-shadow: inset 0 -2px 0 var(--io-accent);
}

/* ── Token list ───────────────────────────────────────────────────── */

.tc-tok {
    padding: 12px 14px;
    font-size: var(--io-text-11);
    line-height: 1.7;
    color: var(--io-text-secondary);
}
.tc-tok-h {
    color: var(--io-text-tertiary);
    font-size: var(--io-text-9);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin: 8px 0 4px;
}
.tc-tok-h:first-child { margin-top: 0; }
.tc-tok-line {
    display: grid;
    grid-template-columns: 18px 1fr auto;
    gap: 8px;
    align-items: center;
    padding: 2px 4px;
    cursor: default;
}
.tc-tok-line:hover { background: var(--io-surface-raised); }
.tc-tok-sw {
    width: 14px;
    height: 14px;
    border: 1px solid var(--io-border);
    background: var(--c);
}
.tc-tok-name { color: var(--io-text-secondary); }
.tc-tok-name .pre { color: var(--io-text-tertiary); }
.tc-tok-val {
    color: var(--io-accent);
    letter-spacing: 0.04em;
    font-size: var(--io-text-10);
}
.tc-tok-line.changed { background: var(--io-accent-subtle); }
.tc-tok-line.changed .tc-tok-name { color: var(--io-accent); }

/* ── Contrast block ──────────────────────────────────────────────── */

.tc-contrast {
    padding: 12px 14px;
}
.tc-c-row {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 10px;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid var(--io-border-subtle);
}
.tc-c-row:last-child { border-bottom: none; }
.tc-c-pair {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--io-text-secondary);
    font-size: var(--io-text-10);
}
.tc-c-sample {
    background: var(--bg);
    color: var(--fg);
    padding: 3px 6px;
    border: 1px solid var(--io-border-subtle);
    font-size: var(--io-text-11);
    letter-spacing: 0.04em;
}
.tc-c-ratio {
    color: var(--io-text-secondary);
    font-size: var(--io-text-11);
    font-variant-numeric: tabular-nums;
}
.tc-c-badge {
    padding: 1px 6px;
    font-size: var(--io-text-9);
    letter-spacing: 0.1em;
    border: 1px solid;
}
.tc-c-badge.aaa { color: var(--io-success); border-color: var(--io-success); }
.tc-c-badge.aa { color: var(--io-warning); border-color: var(--io-warning); }
.tc-c-badge.fail { color: var(--io-error); border-color: var(--io-error); }

/* ── Full-screen views (TOKENS / CONTRAST / EXPORT) ───────────────── */

.tc-view-full {
    height: 100%;
    overflow-y: auto;
    padding: 18px 24px;
}
.tc-view-full h2 {
    color: var(--io-accent);
    font-size: var(--io-text-13);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 14px;
    font-weight: 600;
}
.tc-view-full .tc-tok-line {
    grid-template-columns: 18px 200px auto auto;
    padding: 4px 6px;
}

.tc-export {
    display: flex;
    flex-direction: column;
    gap: 14px;
    height: 100%;
    overflow: hidden;
}
.tc-export-block {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    min-height: 0;
}
.tc-export-block-h {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}
.tc-export-block-h b { color: var(--io-accent); margin-left: auto; font-weight: 500; }
.tc-export-area {
    flex: 1;
    background: var(--io-surface-sunken);
    border: 1px solid var(--io-border);
    color: var(--io-text-primary);
    padding: 10px 12px;
    font-family: var(--io-font-mono);
    font-size: var(--io-text-11);
    line-height: 1.5;
    outline: none;
    resize: none;
    min-height: 0;
}
.tc-export-area:focus { border-color: var(--io-accent); }

/* ── Statusbar ────────────────────────────────────────────────────── */

.tc-statusbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 12px;
    background: var(--io-surface-sunken);
    border-top: 1px solid var(--io-border);
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.06em;
    flex-shrink: 0;
}
.tc-status-left {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.tc-status-left b { color: var(--io-accent); font-weight: 500; }
.tc-status-left .pass { color: var(--io-success); }
.tc-status-left .pass::before { content: '✓ '; }
.tc-status-left .fail { color: var(--io-error); }
.tc-status-actions { display: flex; gap: 6px; }

/* ── Save panel (no backdrop — just a sharp floating chrome) ──────── */

.tc-save-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 460px;
    background: var(--io-surface-overlay);
    border: 1px solid var(--io-accent);
    box-shadow:
        0 0 0 1px var(--io-surface-base),
        0 24px 64px rgba(0, 0, 0, 0.7),
        0 0 32px var(--io-accent-glow);
    padding: 20px 22px 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 99999;
    animation: tc-save-in 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes tc-save-in {
    from { opacity: 0; transform: translate(-50%, calc(-50% + 8px)) scale(0.98); }
    to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

/* accent corner cut — sharp brutalist tag */
.tc-save-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 28px;
    height: 4px;
    background: var(--io-accent);
    box-shadow: 0 0 8px var(--io-accent-glow);
}
.tc-save-panel::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 28px;
    background: var(--io-accent);
}

.tc-save-head {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--io-accent);
    font-size: var(--io-text-12);
    letter-spacing: 0.20em;
    text-transform: uppercase;
    font-weight: 600;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--io-border-subtle);
    margin-bottom: 2px;
}
.tc-save-head i {
    font-size: var(--io-text-13);
    color: var(--io-accent);
    text-shadow: 0 0 8px var(--io-accent-glow);
}

.tc-save-hint {
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: -2px;
}

.tc-save-input {
    background: var(--io-surface-sunken);
    border: 1px solid var(--io-border);
    color: var(--io-text-primary);
    padding: 10px 12px;
    font-family: inherit;
    font-size: var(--io-text-14);
    letter-spacing: 0.04em;
    outline: none;
    caret-color: var(--io-accent);
    transition: border-color var(--io-transition-fast), box-shadow var(--io-transition-fast);
}
.tc-save-input:focus {
    border-color: var(--io-accent);
    box-shadow: inset 0 0 0 1px var(--io-accent), 0 0 12px var(--io-accent-glow);
}
.tc-save-input.tc-error {
    border-color: var(--io-error);
    animation: tc-save-shake 0.3s ease;
}
@keyframes tc-save-shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-4px); }
    40%, 80% { transform: translateX(4px); }
}

/* category row (custom select-like pill group) */
.tc-save-cat {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
}
.tc-save-cat-lbl {
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    min-width: 70px;
}
.tc-save-cat-pills {
    display: flex;
    flex: 1;
    border: 1px solid var(--io-border);
}
.tc-save-cat-pill {
    flex: 1;
    padding: 5px 0;
    text-align: center;
    color: var(--io-text-secondary);
    font-size: var(--io-text-10);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    border-right: 1px solid var(--io-border);
    user-select: none;
    transition: color var(--io-transition-fast), background var(--io-transition-fast);
}
.tc-save-cat-pill:last-child { border-right: none; }
.tc-save-cat-pill:hover { color: var(--io-accent); }
.tc-save-cat-pill.active {
    color: var(--io-accent);
    background: var(--io-accent-subtle);
    box-shadow: inset 0 -2px 0 var(--io-accent);
}

.tc-save-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0 4px;
    color: var(--io-text-tertiary);
    font-size: var(--io-text-10);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    flex-wrap: wrap;
}
.tc-save-meta .tc-save-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border: 1px solid var(--io-border);
    color: var(--io-text-secondary);
}
.tc-save-meta .tc-save-pill b {
    color: var(--io-accent);
    font-weight: 500;
}
.tc-save-meta .tc-save-pill.tc-save-pill-swatch {
    padding-left: 4px;
}
.tc-save-pill-chip {
    display: inline-block;
    width: 10px;
    height: 10px;
    border: 1px solid var(--io-border);
    background: var(--swatch);
    flex-shrink: 0;
}

.tc-save-btns {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 6px;
    padding-top: 12px;
    border-top: 1px solid var(--io-border-subtle);
}

/* ── Flash feedback (copy confirmations) ──────────────────────────── */

.tc-flash {
    position: fixed;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--io-accent);
    color: var(--io-on-accent);
    padding: 8px 18px;
    font-size: var(--io-text-11);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
    z-index: 99999;
    box-shadow: var(--io-shadow-md), 0 0 18px var(--io-accent-glow);
    animation: tc-flash-in 0.15s ease, tc-flash-out 0.3s ease 0.9s forwards;
    pointer-events: none;
}
@keyframes tc-flash-in { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }
@keyframes tc-flash-out { from { opacity: 1; } to { opacity: 0; transform: translate(-50%, -8px); } }