@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@400;500;600&family=DM+Mono:wght@300;400&display=swap');

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

/* ============================================================
   Variables
   ============================================================ */
:root {
    --bg:          #070707;
    --surface:     #0d0d0d;
    --surface-2:   #131313;
    --border:      #1a1a1a;
    --border-2:    #4f4f4f;
    --text:        #ffffff;
    --text-muted:  #ffffff60;
    --text-dim:    #ffffff55;
    --accent:      #c9a14a;
    --accent-glow: rgba(201, 161, 74, 0.12);
    --bar-h:       58px;
    --font-serif:  'Instrument Sans', system-ui, sans-serif;
    --font-mono:   'DM Mono', 'Courier New', monospace;
    --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================================
   Base
   ============================================================ */
html, body {
    height: 100%;
}

body {
    font-family: var(--font-mono);
    background: var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* ============================================================
   Nav
   ============================================================ */
.nav {
    height: 44px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 22px;
    border-bottom: 1px solid var(--border);
    z-index: 30;
}

.nav-brand {
    display: flex;
    align-items: baseline;
    gap: 9px;
    user-select: none;
}

.brand-primary {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: 1.05rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text);
}

.brand-dot {
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 0.65rem;
}

.brand-secondary {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.6rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* ============================================================
   Loading
   ============================================================ */
.loading {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.6rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
}

.loading-pip {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent);
    animation: pip-pulse 1.1s ease-in-out infinite;
}

@keyframes pip-pulse {
    0%, 100% { opacity: 1;   transform: scale(1); }
    50%       { opacity: 0.3; transform: scale(0.5); }
}

/* ============================================================
   Stage
   ============================================================ */
.stage {
    flex: 1;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stage.has-image {
    cursor: grab;
}

.stage.has-image.mode-ascii {
    cursor: default;
}

.stage.panning {
    cursor: grabbing;
    user-select: none;
}

/* ============================================================
   Upload area
   ============================================================ */
.upload-area {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    cursor: pointer;
    transition: background 0.25s ease;
}

.upload-area.drag-over {
    background: rgba(201, 161, 74, 0.03);
}

.upload-area.drag-over .upload-label {
    border-color: var(--accent);
    color: var(--accent);
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding: 40px 32px;
    border: 1px solid var(--border-2);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
}

.upload-label:hover {
    border-color: rgba(255, 255, 255, 0.35);
    color: var(--text);
    background: rgba(255, 255, 255, 0.015);
}

.upload-arrow {
    color: var(--text-dim);
    transition: color 0.25s ease, transform 0.25s ease;
    margin-top: 22px;
    margin-bottom: 22px;
}

.upload-label:hover .upload-arrow {
    color: var(--text-muted);
    transform: translateY(-2px);
}

.upload-main {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: 1.25rem;
    letter-spacing: -0.25px;
}

.upload-hint {
    font-size: 0.6rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.upload-hint + .upload-hint {
    margin-top: -12px;
}

/* ── Upload options layout (two-option landing) ────────────── */
.upload-options {
    display: flex;
    align-items: stretch;
    width: 100%;
    max-width: 900px;
    padding: 0 32px;
}

.upload-label,
.upload-default {
    justify-content: center;
    flex: 1;
}

/* ── Divider ─────────────────────────────────── */
.upload-divider {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 0 28px;
}

.upload-divider-line {
    flex: 1;
    width: 1px;
    background: var(--border-2);
}

.upload-divider-text {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    user-select: none;
}

/* ── Default image button ────────────────────── */
.upload-default {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding: 40px 40px;
    white-space: nowrap;
    border: 1px solid var(--border-2);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    background: transparent;
    font-family: inherit;
}

.upload-default:hover {
    border-color: rgba(255, 255, 255, 0.35);
    color: var(--text);
    background: rgba(255, 255, 255, 0.015);
}

.upload-default-preview {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 2px;
    border: 1px solid var(--border-2);
    opacity: 0.65;
    transition: opacity 0.25s ease, border-color 0.25s ease;
}

.upload-default:hover .upload-default-preview {
    opacity: 1;
    border-color: rgba(255, 255, 255, 0.25);
}

@media (max-width: 620px) {
    .upload-options {
        flex-direction: column;
        align-items: center;
    }

    .upload-label,
    .upload-default {
        width: 280px;
        padding: 18px 24px;
        gap: 8px;
    }

    .upload-arrow {
        margin-top: 6px;
        margin-bottom: 6px;
    }

    .upload-main {
        font-size: 1rem;
        letter-spacing: 0;
    }

    .upload-hint + .upload-hint {
        margin-top: -6px;
    }

    .upload-default-preview {
        width: 56px;
        height: 56px;
    }

    .upload-divider {
        flex-direction: row;
        padding: 12px 0;
        width: 280px;
    }

    .upload-divider-line {
        width: auto;
        height: 1px;
        flex: 1;
    }
}

/* ============================================================
   ASCII output
   ============================================================ */
.ascii-output {
    position: absolute;
    inset: 0;
    padding: 20px 76px calc(20px + var(--bar-h)) 20px;
    font-family: 'Courier New', monospace;
    font-size: 10px;
    line-height: 1;
    white-space: pre;
    overflow: auto;
}

/* Scrollbar */
.ascii-output::-webkit-scrollbar { width: 3px; height: 3px; }
.ascii-output::-webkit-scrollbar-track { background: transparent; }
.ascii-output::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 2px; }
.ascii-output::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ============================================================
   Gallery strip (right side)
   ============================================================ */
.gallery-strip {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 56px;
    z-index: 6;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 3px calc(10px + var(--bar-h)) 3px;
    gap: 6px;
}

.gallery-thumbs {
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow-y: auto;
    scrollbar-width: none;
}

.gallery-thumbs::-webkit-scrollbar { display: none; }

.gallery-thumb {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    position: relative;
    cursor: pointer;
    border: 1px solid var(--border-2);
    opacity: 0.45;
    transition: opacity 0.2s ease, border-color 0.2s ease;
}

.gallery-thumb:hover {
    opacity: 0.75;
}

.gallery-thumb.active {
    opacity: 1;
    border-color: var(--accent);
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gallery-thumb .gallery-remove {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 15px;
    height: 15px;
    background: rgba(7, 7, 7, 0.8);
    color: var(--text-muted);
    border: 1px solid var(--border-2);
    border-radius: 50%;
    font-size: 9px;
    line-height: 1;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.gallery-thumb:hover .gallery-remove {
    display: flex;
}

.gallery-add-btn {
    width: 50px;
    height: 34px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.8);
    border: 1px dashed var(--border-2);
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.2s ease;
}

.gallery-add-btn:hover:not(:disabled) {
    border-color: rgba(255, 255, 255, 0.35);
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.015);
}

.gallery-add-btn:disabled {
    opacity: 0.22;
    cursor: not-allowed;
}

/* ============================================================
   Export progress overlay
   ============================================================ */
.export-progress {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(7, 7, 7, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    backdrop-filter: blur(8px);
}

.export-progress-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.export-progress-bar {
    width: 200px;
    height: 2px;
    background: var(--border-2);
    position: relative;
    overflow: hidden;
}

.export-progress-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--accent);
    transition: width 0.2s ease;
}

/* ============================================================
   Bottom bar
   ============================================================ */
.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bar-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    background: rgba(7, 7, 7, 0.88);
    backdrop-filter: blur(24px) saturate(160%);
    -webkit-backdrop-filter: blur(24px) saturate(160%);
    border-top: 1px solid var(--border);
    z-index: 20;
    transition: opacity 0.3s ease;
}

.bar-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.bar-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ============================================================
   Bar buttons
   ============================================================ */
.bar-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 13px;
    background: transparent;
    border: 1px solid var(--border-2);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.bar-btn:hover:not(:disabled) {
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.03);
}

.bar-btn:disabled {
    opacity: 0.22;
    cursor: not-allowed;
}

.bar-btn.settings-btn.active {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-glow);
}

.chevron {
    transition: transform 0.3s var(--ease-spring);
    opacity: 0.5;
}

.settings-btn.active .chevron {
    transform: rotate(180deg);
    opacity: 1;
}

/* ============================================================
   Settings panel
   ============================================================ */
.settings-panel {
    position: fixed;
    bottom: var(--bar-h);
    left: 0;
    right: 0;
    z-index: 15;
    transform: translateY(calc(100% + var(--bar-h)));
    transition: transform 0.4s var(--ease-spring);
    background: rgba(9, 9, 9, 0.90);
    backdrop-filter: blur(40px) saturate(160%);
    -webkit-backdrop-filter: blur(40px) saturate(100%);
    border-top: 1px solid var(--border);
    max-height: 45vh;
    overflow: hidden;
}

.settings-panel::before,
.settings-panel::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 36px;
    pointer-events: none;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.settings-panel::before {
    top: 0;
    background: linear-gradient(to top, transparent, rgba(9, 9, 9, 0.95));
}

.settings-panel::after {
    bottom: 0;
    background: linear-gradient(to bottom, transparent, rgba(9, 9, 9, 0.95));
}

.settings-panel.has-overflow-top::before { opacity: 1; }
.settings-panel.has-overflow::after { opacity: 1; }

.settings-panel.open {
    transform: translateY(0);
}

.settings-inner {
    padding: 22px 0 46px;
    max-height: 45vh;
    overflow-y: auto;
}

.settings-inner::-webkit-scrollbar { width: 3px; }
.settings-inner::-webkit-scrollbar-track { background: transparent; }
.settings-inner::-webkit-scrollbar-thumb { background: var(--border-2); }

.settings-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px 28px;
    max-width: 860px;
    margin: 0 auto;
    padding: 0 22px;
}

/* ============================================================
   Control groups
   ============================================================ */
.ctrl-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 9px;
}

.ctrl-label {
    font-size: 0.6rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.ctrl-value {
    font-size: 0.65rem;
    letter-spacing: 0.05em;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

/* ============================================================
   Sliders
   ============================================================ */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 1px;
    background: var(--border-2);
    outline: none;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 11px;
    height: 11px;
    background: var(--text);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--accent);
    transform: scale(1.35);
}

input[type="range"]::-moz-range-thumb {
    width: 11px;
    height: 11px;
    background: var(--text);
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: background 0.2s ease;
}

input[type="range"]::-moz-range-thumb:hover {
    background: var(--accent);
}

input[type="range"]:disabled {
    opacity: 0.3;
}

input[type="range"]:disabled::-webkit-slider-thumb {
    cursor: not-allowed;
}

/* ============================================================
   Select
   ============================================================ */
select {
    width: 100%;
    padding: 6px 28px 6px 9px;
    background: var(--surface-2);
    border: 1px solid var(--border-2);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.04em;
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23888888' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 9px center;
}

select:focus {
    border-color: var(--accent);
}

select:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ============================================================
   Custom char input
   ============================================================ */
input[type="text"].custom-input {
    width: 100%;
    padding: 6px 9px;
    background: var(--surface-2);
    border: 1px solid var(--border-2);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    outline: none;
    transition: border-color 0.2s ease;
    margin-top: 7px;
}

input[type="text"].custom-input:focus {
    border-color: var(--accent);
}

/* ============================================================
   Toggle switch
   ============================================================ */
.control-group--toggle {
    display: flex;
    align-items: center;
    padding-top: 4px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-track {
    width: 30px;
    height: 17px;
    background: var(--border-2);
    border-radius: 9px;
    position: relative;
    flex-shrink: 0;
    transition: background 0.25s ease;
}

.toggle-label input:checked ~ .toggle-track {
    background: var(--accent);
}

.toggle-label input:disabled ~ .toggle-track {
    opacity: 0.3;
    cursor: not-allowed;
}

.toggle-thumb {
    position: absolute;
    top: 2.5px;
    left: 2.5px;
    width: 12px;
    height: 12px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: transform 0.25s var(--ease-spring), background 0.25s ease;
}

.toggle-label input:checked ~ .toggle-track .toggle-thumb {
    transform: translateX(13px);
    background: var(--bg);
}

/* ============================================================
   Utility
   ============================================================ */
.hidden {
    display: none !important;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
    .bar-palette { display: none !important; }
}

@media (max-width: 760px) {
    :root { --bar-h: 88px; }

    .settings-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .nav { padding: 0 14px; }

    /* Two-row bottom bar: modes on top, settings + downloads below */
    .bottom-bar {
        flex-wrap: wrap;
        justify-content: center;
        height: auto;
        padding: 8px 12px;
        gap: 6px;
    }

    .bar-left, .bar-right {
        display: contents;
    }

    .mode-toggle {
        width: 100%;
    }

    .mode-btn {
        flex: 1;
    }

    .btn-label { display: none; }

    .mode-btn { padding: 10px 8px; font-size: 0.52rem; }

    .bar-btn { padding: 10px 13px; }

    /* Centre upload content in visible area above the bar */
    .upload-area { padding-bottom: var(--bar-h); }

    /* Larger tap targets for settings panel buttons */
    .color-mode-btn { padding: 10px 12px; }

    /* Hide palette source hint on mobile */
    #paletteHint { display: none; }

    /* Gallery strip: thinner on mobile */
    .gallery-strip {
        width: 42px;
        padding: 8px 2px calc(8px + var(--bar-h)) 2px;
    }
    .gallery-thumb { width: 36px; height: 36px; }
    .gallery-add-btn { width: 36px; height: 28px; }

    /* ASCII output: less right padding to match thinner gallery */
    .ascii-output { padding-right: 50px; }

    /* Native scroll for canvas modes on mobile */
    .stage {
        overflow: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: var(--bar-h);  /* space below content so it isn't hidden by fixed bar */
    }

    .dither-output {
        position: relative;
        top: auto;
        left: auto;
        transform: none;
        margin: auto;
        flex-shrink: 0;
        max-height: none;   /* allow vertical scroll instead of constraining */
    }

    /* Settings panel: allow more height on shorter screens */
    .settings-panel { max-height: 50vh; }
    .settings-inner { max-height: 50vh; }
}

@media (max-width: 460px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }

    .bar-btn {
        padding: 7px 10px;
        gap: 0;
    }

    /* Tighter mode buttons for narrow screens */
    .mode-btn {
        padding: 8px 8px;
        font-size: 0.48rem;
        letter-spacing: 0.08em;
    }

    /* ASCII output: tighter padding */
    .ascii-output {
        padding: 12px 44px calc(12px + var(--bar-h)) 12px;
    }

    /* Tighter gap on narrow screens */
    .bottom-bar {
        gap: 4px;
    }
}

/* ============================================================
   Mode toggle  (ASCII | DITHER)
   ============================================================ */
.mode-toggle {
    display: flex;
    border: 1px solid var(--border-2);
    overflow: hidden;
}

.mode-btn {
    padding: 9px 11px;
    background: transparent;
    border: none;
    border-right: 1px solid var(--border-2);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1;
}

.mode-btn:last-child { border-right: none; }

.mode-btn.active {
    background: var(--surface-2);
    color: var(--text);
}

.mode-btn:hover:not(.active) {
    color: var(--text);
    background: rgba(255,255,255,0.03);
}

/* ============================================================
   Dither output canvas
   ============================================================ */
.dither-output {
    position: absolute;
    /* Centre in the visible stage area (offset up by half the bar to avoid overlap) */
    top: calc(50% - var(--bar-h) / 2);
    left: 50%;
    transform: translate(-50%, -50%);
    /* Constrain to viewport — keeps canvas visible on small screens */
    max-width: calc(100% - 16px);
    max-height: calc(100% - var(--bar-h) - 16px);
}
/* Crisp nearest-neighbor scaling — applied by JS for pixel-art modes (dither/pixel/CRT) */
.dither-output.crisp {
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

/* ============================================================
   Bar palette (centred dots)
   ============================================================ */
.bar-palette {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 7px;
    pointer-events: none; /* clicks pass through until pips exist */
}

.bar-pip {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.12);
    cursor: pointer;
    pointer-events: all;
    flex-shrink: 0;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    animation: pip-in 0.4s var(--ease-spring) backwards;
}

.bar-pip:hover {
    transform: scale(1.4);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.18);
}

@keyframes pip-in {
    from { transform: scale(0); opacity: 0; }
    to   { transform: scale(1); opacity: 1; }
}

/* ============================================================
   Palette section (inside settings panel)
   ============================================================ */
.palette-section {
    margin-bottom: 4px;
    max-width: 860px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 22px;
}

.palette-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

/* ── Colour mode toggle ──────────────────────── */
.color-mode-toggle {
    display: flex;
    border: 1px solid var(--border-2);
    overflow: hidden;
    flex-shrink: 0;
}

.color-mode-btn {
    padding: 6px 9px;
    background: transparent;
    border: none;
    border-right: 1px solid var(--border-2);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.55rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1;
}

.color-mode-btn:last-child { border-right: none; }

.color-mode-btn.active {
    background: var(--surface-2);
    color: var(--text);
}

.color-mode-btn:hover:not(.active) {
    color: var(--text);
    background: rgba(255, 255, 255, 0.03);
}

/* ── Global colour picker row ────────────────── */
.global-color-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 4px 0;
}

.global-color-row input[type="color"] {
    -webkit-appearance: none;
    appearance: none;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    padding: 0;
}

.global-color-row input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.global-color-row input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
}

.global-color-hex {
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

.palette-hint {
    font-size: 0.58rem;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    text-transform: lowercase;
    flex: 1;
}

.palette-reset {
    background: transparent;
    border: 1px solid var(--border-2);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.58rem;
    letter-spacing: 0.1em;
    text-transform: lowercase;
    padding: 5px 9px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.palette-reset:hover:not(:disabled) {
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.35);
}

.palette-reset:disabled {
    opacity: 0.25;
    cursor: not-allowed;
}

.palette-empty {
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    text-transform: lowercase;
    padding: 8px 0;
}

.palette-swatches {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: flex-end;
}

/* Each swatch is a <label> wrapping a hidden color input */
.swatch {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    cursor: pointer;
}

.swatch-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color, #555);
    display: block;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
}

.swatch:hover .swatch-circle {
    transform: scale(1.12);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.18),
                0 4px 12px rgba(0, 0, 0, 0.4);
}

.swatch:focus-within .swatch-circle {
    box-shadow: 0 0 0 2px var(--accent);
}

.swatch input[type="color"] {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
}

.swatch-hex {
    font-size: 0.57rem;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    transition: color 0.2s ease;
    text-transform: lowercase;
}

.swatch:hover .swatch-hex {
    color: var(--text);
}

.settings-divider {
    height: 1px;
    background: var(--border);
    margin: 16px 0 18px;
}

/* ============================================================
   Glyph shapes section
   ============================================================ */
.glyph-section {
    max-width: 860px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 22px;
}

.glyph-section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.glyph-dropzone {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border: 1px dashed var(--border-2);
    color: var(--text-dim);
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: lowercase;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 12px;
    user-select: none;
}

.glyph-dropzone:hover,
.glyph-dropzone.drag-over {
    border-color: rgba(255, 255, 255, 0.35);
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.015);
}

.glyph-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-height: 20px;
}

.glyph-thumb {
    width: 48px;
    height: 48px;
    background: #fff;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
    transition: border-color 0.2s ease;
}

.glyph-thumb:hover {
    border-color: var(--border-2);
}

.glyph-thumb img {
    width: 80%;
    height: 80%;
    object-fit: contain;
    display: block;
}

.glyph-remove {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 13px;
    height: 13px;
    background: var(--accent);
    color: var(--bg);
    border: none;
    font-size: 8px;
    line-height: 1;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    padding: 0;
}

.glyph-thumb:hover .glyph-remove {
    display: flex;
}

.glyph-empty {
    font-size: 0.58rem;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    text-transform: lowercase;
    padding: 4px 0;
}

/* ============================================================
   Glyph mapping strip
   ============================================================ */
.glyph-mapping-section {
    margin-top: 14px;
}

.glyph-mapping-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.glyph-range-controls {
    display: flex;
    flex-direction: column;
    gap: 7px;
    margin-bottom: 12px;
}

.glyph-range-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.glyph-range-row input[type="range"] {
    flex: 1;
}

.glyph-map-wrap {
    margin-bottom: 6px;
}

.glyph-map-strip {
    position: relative;
    height: 52px;
    background: linear-gradient(to right, #111, #e0e0e0);
    border: 1px solid var(--border-2);
    overflow: visible;
    /* extend slightly so thumbs at 0%/100% aren't clipped */
    margin: 0 14px;
}

.glyph-map-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.55rem;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    text-transform: uppercase;
    margin-top: 5px;
    padding: 0 14px;
}

.glyph-map-thumb {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 34px;
    height: 34px;
    background: rgba(201, 161, 74, 0.85);
    border: 1px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: box-shadow 0.15s ease;
    user-select: none;
}

.glyph-map-thumb.inactive {
    background: rgba(15, 15, 15, 0.85);
    border-color: var(--border);
    opacity: 0.35;
}

.glyph-map-thumb.draggable {
    cursor: grab;
}

.glyph-map-thumb.draggable:hover {
    box-shadow: 0 0 0 2px var(--accent);
}

.glyph-map-thumb.is-dragging {
    cursor: grabbing;
    z-index: 10;
    box-shadow: 0 0 0 2px var(--accent);
}

.glyph-map-thumb img {
    width: 22px;
    height: 22px;
    object-fit: contain;
    pointer-events: none;
}

.glyph-map-hint {
    font-size: 0.55rem;
    letter-spacing: 0.09em;
    color: var(--text-dim);
    text-transform: lowercase;
    text-align: center;
    min-height: 14px;
}

/* ============================================================
   Error toast animation
   ============================================================ */
@keyframes toast-in {
    from { transform: translateX(calc(100% + 20px)); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}

@keyframes toast-out {
    from { transform: translateX(0); opacity: 1; }
    to   { transform: translateX(calc(100% + 20px)); opacity: 0; }
}