/* TechRemap — by Mennens.Tech
   A modern, user-friendly HID Remapper configuration tool
   Design: dark-mode gaming aesthetic, clean and focused
*/

/* ─── Design Tokens ─────────────────────────────────────────────────────────── */
:root {
    --bg:          #0B0B13;
    --surface-1:   #11111C;
    --surface-2:   #181826;
    --surface-3:   #1F1F30;
    --surface-4:   #26263A;
    --border:      #2C2C44;
    --border-hi:   #3E3E5C;

    --accent:      #5B7FEF;
    --accent-hi:   #7A9FFF;
    --accent-dim:  rgba(91,127,239,0.15);
    --accent-glow: rgba(91,127,239,0.35);

    --success:     #4ADE80;
    --success-dim: rgba(74,222,128,0.15);
    --warning:     #FBBF24;
    --danger:      #F87171;
    --danger-dim:  rgba(248,113,113,0.15);

    --text-1:      #EEEEFF;
    --text-2:      #9090B8;
    --text-3:      #55557A;

    /* Controller visual colours */
    --pad-body:    #161624;
    --pad-grip:    #0F0F1A;
    --pad-surface: #1E1E32;
    --pad-button:  #252538;
    --pad-button-hi: #32325A;
    --pad-ring:    #2A2A44;

    --btn-a-fill:  #1A4A2A;
    --btn-a-hi:    #2A6E3E;
    --btn-a-text:  #4ADE80;
    --btn-b-fill:  #4A1A1A;
    --btn-b-hi:    #6E2A2A;
    --btn-b-text:  #F87171;
    --btn-x-fill:  #1A2E5A;
    --btn-x-hi:    #2A4A8E;
    --btn-x-text:  #7AA8F0;
    --btn-y-fill:  #3E3010;
    --btn-y-hi:    #5C4A1A;
    --btn-y-text:  #FBBF24;

    --radius-xs:   4px;
    --radius-sm:   8px;
    --radius:      12px;
    --radius-lg:   18px;
    --radius-xl:   26px;

    --shadow-sm:   0 2px 8px rgba(0,0,0,0.4);
    --shadow:      0 4px 20px rgba(0,0,0,0.5);
    --shadow-lg:   0 8px 40px rgba(0,0,0,0.6);

    --t:           0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Reset & Base ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }

body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    background: var(--bg);
    color: var(--text-1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* ─── Scrollbar ──────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hi); }

/* ─── Header ─────────────────────────────────────────────────────────────────── */
#header {
    flex: none;
    height: 56px;
    background: var(--surface-1);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 16px;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-1);
    flex: none;
}
.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}
.logo-name { font-size: 16px; font-weight: 700; letter-spacing: -0.3px; }
.logo-sub  { font-size: 10px; color: var(--text-3); font-weight: 500; margin-top: -2px; }
.logo-img  { height: 28px; width: auto; object-fit: contain; }
.logo-fallback { display: flex; align-items: center; gap: 8px; }

.header-sep { flex: 1; }

/* Device status pill */
#device-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    font-size: 13px;
    font-weight: 500;
}
.status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--text-3);
    transition: background var(--t);
}
.status-dot.connected    { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.connecting   { background: var(--warning); animation: pulse 1s infinite; }
.status-dot.disconnected { background: var(--text-3); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.3; }
}

/* Header buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-3);
    color: var(--text-1);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--t);
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover  { background: var(--surface-4); border-color: var(--border-hi); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-hi); border-color: var(--accent-hi); }

.btn-success {
    background: var(--success-dim);
    border-color: var(--success);
    color: var(--success);
}
.btn-danger {
    background: var(--danger-dim);
    border-color: var(--danger);
    color: var(--danger);
}

.btn-icon {
    padding: 7px 10px;
}

/* Save confirmation */
#save-check {
    color: var(--success);
    font-size: 18px;
    opacity: 0;
    transition: opacity 0.3s;
}
#save-check.visible { opacity: 1; }

/* ─── Tab Bar ────────────────────────────────────────────────────────────────── */
#tabs {
    flex: none;
    display: flex;
    background: var(--surface-1);
    border-bottom: 1px solid var(--border);
    padding: 0 16px;
}
.tab {
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-2);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--t);
    user-select: none;
}
.tab:hover  { color: var(--text-1); }
.tab.active { color: var(--accent-hi); border-bottom-color: var(--accent); }

/* ─── Main Layout ────────────────────────────────────────────────────────────── */
#main {
    flex: 1;
    display: flex;
    overflow: hidden;
    min-height: 0;
}

/* ─── Tab Panels ─────────────────────────────────────────────────────────────── */
.tab-panel { display: none; flex: 1; overflow: hidden; }
.tab-panel.active { display: flex; }

/* ─── Remap Panel (controller + side panel) ─────────────────────────────────── */
#panel-remap {
    display: flex;
    flex-direction: row;
    align-items: stretch;
}

#controller-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    min-width: 0;
    overflow: auto;
}

/* ─── Controller SVG ─────────────────────────────────────────────────────────── */
#controller-wrap {
    width: 100%;
    max-width: 600px;
}

#controller-svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 12px 40px rgba(0,0,0,0.6));
}

/* SVG element base styles */
.pad-body       { fill: var(--pad-body); }
.pad-grip-tex   { fill: var(--pad-grip); opacity: 0.6; }
.pad-surface    { fill: var(--pad-surface); }
.pad-ring       { fill: var(--pad-ring); }
.pad-stick-nub  { fill: var(--pad-button); stroke: var(--border); stroke-width: 1.5; }
.pad-bumper     { fill: var(--pad-button); }
.pad-trigger    { fill: var(--pad-button); }
.pad-dpad       { fill: var(--pad-button); }
.pad-center-btn { fill: var(--pad-button); }
.pad-home-btn   { fill: var(--pad-button); }

/* Face button colours */
.pad-btn-a { fill: var(--btn-a-fill); }
.pad-btn-b { fill: var(--btn-b-fill); }
.pad-btn-x { fill: var(--btn-x-fill); }
.pad-btn-y { fill: var(--btn-y-fill); }

/* Labels */
.pad-label {
    fill: var(--text-2);
    font-size: 11px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-weight: 600;
    text-anchor: middle;
    dominant-baseline: middle;
    pointer-events: none;
    user-select: none;
}
.pad-label-a { fill: var(--btn-a-text); }
.pad-label-b { fill: var(--btn-b-text); }
.pad-label-x { fill: var(--btn-x-text); }
.pad-label-y { fill: var(--btn-y-text); }

/* Clickable controller elements */
.pad-clickable {
    cursor: pointer;
    transition: filter 0.12s;
}
.pad-clickable:hover { filter: brightness(1.6) drop-shadow(0 0 6px var(--accent-glow)); }
.pad-clickable.selected { filter: brightness(1.8) drop-shadow(0 0 10px var(--accent)); }
.pad-clickable.mapped   { filter: brightness(1.3); }

/* Mapping indicator dots on controller */
.mapping-dot {
    fill: var(--accent);
    opacity: 0.9;
    pointer-events: none;
}

/* ─── Layer selector bar (below controller) ──────────────────────────────────── */
#layer-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
}
#layer-bar label {
    font-size: 12px;
    color: var(--text-2);
    font-weight: 500;
}
.layer-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-2);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--t);
}
.layer-btn:hover  { border-color: var(--border-hi); color: var(--text-1); }
.layer-btn.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent-hi);
}
.layer-led {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--text-3);
}

/* ─── Assignment Panel (right side) ─────────────────────────────────────────── */
#assign-panel {
    width: 320px;
    flex: none;
    background: var(--surface-1);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform var(--t);
}

#assign-panel.empty {
    align-items: center;
    justify-content: center;
}

#assign-empty {
    text-align: center;
    padding: 32px;
    color: var(--text-3);
}
#assign-empty .empty-icon {
    font-size: 40px;
    margin-bottom: 12px;
    opacity: 0.5;
}
#assign-empty p { font-size: 13px; line-height: 1.6; }

#assign-content { display: flex; flex-direction: column; height: 100%; overflow: hidden; }

#assign-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    flex: none;
}
.assign-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.assign-usage-badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--accent-dim);
    border: 1px solid var(--accent);
    border-radius: var(--radius-xs);
    font-size: 10px;
    font-weight: 700;
    color: var(--accent-hi);
    font-family: monospace;
}
.assign-subtitle { font-size: 12px; color: var(--text-2); margin-top: 2px; }

/* Stick sub-selector tabs */
#stick-tabs {
    display: flex;
    gap: 4px;
    margin-top: 10px;
}
.stick-tab {
    flex: 1;
    padding: 5px 8px;
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-2);
    cursor: pointer;
    text-align: center;
    transition: all var(--t);
}
.stick-tab:hover  { border-color: var(--border-hi); color: var(--text-1); }
.stick-tab.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent-hi); }

/* Panel body (scrollable) */
#assign-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Panel sections */
.assign-section label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 8px;
}

/* Current mapping display */
.current-mapping {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    min-height: 40px;
}
.current-mapping.has-mapping {
    background: var(--accent-dim);
    border-color: var(--accent);
}
.current-mapping .mapping-name { flex: 1; font-weight: 500; }
.current-mapping .remove-btn {
    background: none;
    border: none;
    color: var(--text-3);
    cursor: pointer;
    font-size: 16px;
    padding: 2px 4px;
    border-radius: var(--radius-xs);
    transition: color var(--t);
    line-height: 1;
}
.current-mapping .remove-btn:hover { color: var(--danger); }

/* Capture button */
#capture-btn {
    width: 100%;
    padding: 10px;
    background: var(--surface-2);
    border: 1px dashed var(--border-hi);
    border-radius: var(--radius-sm);
    color: var(--text-2);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--t);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
#capture-btn:hover { border-color: var(--accent); color: var(--accent-hi); }
#capture-btn.capturing {
    border-color: var(--warning);
    color: var(--warning);
    background: rgba(251,191,36,0.08);
    animation: capture-pulse 1.2s ease infinite;
}
@keyframes capture-pulse {
    0%,100% { box-shadow: 0 0 0 0 rgba(251,191,36,0); }
    50%      { box-shadow: 0 0 0 6px rgba(251,191,36,0.2); }
}
.capture-indicator {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: currentColor;
}
#capture-btn.capturing .capture-indicator { animation: blink 0.5s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Source search */
#source-search {
    width: 100%;
    padding: 8px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-1);
    font-size: 13px;
    outline: none;
    transition: border-color var(--t);
}
#source-search:focus  { border-color: var(--accent); }
#source-search::placeholder { color: var(--text-3); }

/* Category tabs in picker */
.picker-cats {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}
.picker-cat {
    padding: 4px 10px;
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    font-size: 11px;
    font-weight: 600;
    color: var(--text-2);
    cursor: pointer;
    transition: all var(--t);
}
.picker-cat:hover  { border-color: var(--border-hi); color: var(--text-1); }
.picker-cat.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent-hi); }

/* Usage list */
#usage-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 180px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
}
.usage-item {
    padding: 7px 12px;
    font-size: 12px;
    cursor: pointer;
    transition: background var(--t);
    display: flex;
    align-items: center;
    gap: 8px;
}
.usage-item:hover    { background: var(--surface-4); }
.usage-item.selected { background: var(--accent-dim); color: var(--accent-hi); }
.usage-item-type {
    font-size: 9px;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: var(--radius-xs);
    background: var(--surface-4);
    color: var(--text-3);
    text-transform: uppercase;
    flex: none;
}
.usage-item-type.axis { background: rgba(91,127,239,0.2); color: var(--accent-hi); }

/* Sliders */
.slider-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.slider-label-row {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-2);
}
.slider-label-row span { color: var(--text-1); font-weight: 600; font-variant-numeric: tabular-nums; }
input[type="range"] {
    width: 100%;
    height: 4px;
    background: var(--surface-4);
    border-radius: 2px;
    outline: none;
    appearance: none;
    cursor: pointer;
    accent-color: var(--accent);
}
input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 16px; height: 16px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--accent-glow);
    transition: transform var(--t);
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

/* Toggle switches */
.toggle-group { display: flex; flex-direction: column; gap: 8px; }
.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.toggle-label { font-size: 12px; font-weight: 500; }
.toggle-desc  { font-size: 11px; color: var(--text-2); margin-top: 1px; }
.toggle {
    position: relative;
    width: 32px; height: 18px;
    flex: none;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--surface-4);
    border-radius: 9px;
    cursor: pointer;
    transition: background var(--t);
}
.toggle-slider::before {
    content: '';
    position: absolute;
    width: 12px; height: 12px;
    left: 3px; top: 3px;
    background: white;
    border-radius: 50%;
    transition: transform var(--t);
}
.toggle input:checked + .toggle-slider { background: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(14px); }

/* Layer selector in panel */
.layer-checkboxes {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.layer-check {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    transition: all var(--t);
}
.layer-check input { accent-color: var(--accent); }
.layer-check.checked { background: var(--accent-dim); border-color: var(--accent); color: var(--accent-hi); }

/* Panel footer */
#assign-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
    flex: none;
}
#assign-footer .btn { flex: 1; justify-content: center; }

/* ─── Layers Tab ─────────────────────────────────────────────────────────────── */
#panel-layers {
    flex-direction: column;
    overflow: auto;
    padding: 24px;
    gap: 24px;
    align-items: flex-start;
}

.section-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 4px;
}
.section-desc {
    font-size: 12px;
    color: var(--text-2);
    margin-bottom: 16px;
}

/* LED color pickers grid */
.led-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
    width: 100%;
    max-width: 720px;
}
.led-card {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.led-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
}
.led-preview {
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.1);
    cursor: pointer;
    transition: transform var(--t), box-shadow var(--t);
    flex: none;
}
.led-preview:hover { transform: scale(1.15); }
.led-preview.glow  { box-shadow: 0 0 12px var(--preview-color, var(--accent-glow)); }
.led-layer-name {
    font-weight: 600;
    font-size: 13px;
}
.led-layer-sub {
    font-size: 11px;
    color: var(--text-3);
}
input[type="color"].color-input {
    width: 100%;
    height: 32px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-3);
    cursor: pointer;
    padding: 2px;
}

/* Passthrough layers */
.passthrough-grid {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    max-width: 600px;
}
.passthrough-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    transition: all var(--t);
    user-select: none;
}
.passthrough-toggle:hover   { border-color: var(--border-hi); color: var(--text-1); }
.passthrough-toggle.active  { background: var(--success-dim); border-color: var(--success); color: var(--success); }
.passthrough-toggle input   { accent-color: var(--success); }

/* ─── Settings Tab ────────────────────────────────────────────────────────────── */
#panel-settings {
    flex-direction: column;
    overflow: auto;
    padding: 24px;
    gap: 0;
}
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    max-width: 700px;
    margin-bottom: 24px;
}
.setting-card {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}
.setting-card label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 6px;
}
.setting-card .setting-desc {
    font-size: 11px;
    color: var(--text-3);
    margin-bottom: 8px;
}
select.setting-select {
    width: 100%;
    padding: 7px 10px;
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-1);
    font-size: 13px;
    outline: none;
    cursor: pointer;
    transition: border-color var(--t);
}
select.setting-select:focus { border-color: var(--accent); }
input[type="number"].setting-input {
    width: 100%;
    padding: 7px 10px;
    background: var(--surface-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-1);
    font-size: 13px;
    outline: none;
    transition: border-color var(--t);
}
input[type="number"].setting-input:focus { border-color: var(--accent); }

/* Danger zone */
.danger-zone {
    border: 1px solid var(--danger);
    background: var(--danger-dim);
    border-radius: var(--radius);
    padding: 16px;
    max-width: 700px;
}
.danger-zone h3 { color: var(--danger); font-size: 14px; margin-bottom: 8px; }
.danger-zone p  { font-size: 12px; color: var(--text-2); margin-bottom: 12px; }
.danger-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ─── Advanced Tab ────────────────────────────────────────────────────────────── */
#panel-advanced {
    flex-direction: column;
    overflow: auto;
    padding: 24px;
    gap: 24px;
}
.adv-section { max-width: 800px; width: 100%; }
.adv-subsection {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 8px;
}
.adv-subsection-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: var(--surface-3);
    cursor: pointer;
    user-select: none;
}
.adv-subsection-header:hover { background: var(--surface-4); }
.adv-subsection-body { padding: 12px 14px; display: none; }
.adv-subsection.open .adv-subsection-body { display: block; }
.adv-chevron { transition: transform var(--t); }
.adv-subsection.open .adv-chevron { transform: rotate(90deg); }

textarea.expr-input {
    width: 100%;
    min-height: 60px;
    padding: 8px 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: #7AA8F0;
    font-family: 'Fira Code', 'Consolas', 'Monaco', monospace;
    font-size: 12px;
    line-height: 1.6;
    resize: vertical;
    outline: none;
    transition: border-color var(--t);
}
textarea.expr-input:focus { border-color: var(--accent); }

/* JSON import/export */
.io-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ─── Notifications ───────────────────────────────────────────────────────────── */
#notifications {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 100;
    pointer-events: none;
}
.notification {
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    box-shadow: var(--shadow);
    animation: slide-in 0.2s ease;
    pointer-events: all;
    max-width: 300px;
}
.notification.success { background: var(--success); color: #0a2e18; }
.notification.error   { background: var(--danger);  color: #2e0a0a; }
.notification.info    { background: var(--accent);  color: #fff; }

@keyframes slide-in {
    from { transform: translateX(120%); opacity: 0; }
    to   { transform: translateX(0);    opacity: 1; }
}

/* ─── Connect screen (shown when disconnected) ───────────────────────────────── */
#connect-screen {
    position: absolute;
    inset: 0;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    z-index: 50;
    padding: 32px;
    text-align: center;
}
#connect-screen .connect-logo-img {
    height: 64px; width: auto;
    object-fit: contain;
    opacity: 0.95;
}
#connect-screen .connect-logo {
    width: 64px; height: 64px;
    background: var(--accent);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 0 40px var(--accent-glow);
}
#connect-screen h1    { font-size: 24px; font-weight: 700; }
#connect-screen p     { font-size: 14px; color: var(--text-2); max-width: 380px; line-height: 1.6; }
.connect-btn-big {
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius);
    background: var(--accent);
    border: none;
    color: white;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--accent-glow);
    transition: all var(--t);
}
.connect-btn-big:hover { background: var(--accent-hi); transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); }
.connect-note { font-size: 12px; color: var(--text-3); }
#no-webhid-warning {
    display: none;
    padding: 12px 18px;
    background: var(--danger-dim);
    border: 1px solid var(--danger);
    border-radius: var(--radius-sm);
    color: var(--danger);
    font-size: 13px;
    max-width: 400px;
}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 800px) {
    #assign-panel { width: 280px; }
    .settings-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    #panel-remap { flex-direction: column; }
    #assign-panel { width: 100%; height: 280px; border-left: none; border-top: 1px solid var(--border); }
}

/* ─── Footer ──────────────────────────────────────────────────────────────────── */
#footer {
    flex: none;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-3);
    border-top: 1px solid var(--border);
    background: var(--surface-1);
}
#footer a { color: var(--text-2); text-decoration: none; }
#footer a:hover { color: var(--text-1); }
.footer-sep { opacity: 0.4; }

/* ─── Utility ─────────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.flex-row { display: flex; align-items: center; gap: 8px; }