/* ============================================================
   UI Color Generator — Stylesheet
   Dark-themed, M3-compliant display
   ============================================================ */

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

:root {
    /* Light defaults — overridden immediately by applyAppTheme() on generate */
    --bg:           #f8f9fa;
    --surface:      #f1f3f5;
    --surface-2:    #e9ecef;
    --surface-3:    #dee2e6;
    --border:       #ced4da;
    --border-2:     #868e96;
    --text:         #212529;
    --text-muted:   #495057;
    --text-dim:     #868e96;
    --accent:       #4361ee;
    --accent-h:     #3a0ca3;
    --btn-text:     #fff;
    --btn-h-text:   #fff;
    --shadow-color: #212529;
    /* WCAG badge colors — updated by applyAppTheme() for each mode */
    --wcag-pass-bg:   rgba(22,163,74,.12);  --wcag-pass-txt:  #15803d;
    --wcag-large-bg:  rgba(202,138,4,.12);  --wcag-large-txt: #a16207;
    --wcag-fail-bg:   rgba(220,38,38,.12);  --wcag-fail-txt:  #b91c1c;
    --radius:       10px;
    --radius-sm:    6px;
    --radius-xs:    4px;
    --font:         system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono:         'SF Mono', 'Fira Code', 'Cascadia Code', ui-monospace, monospace;
    --shadow:       0 2px 12px rgba(0,0,0,.10);
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.5;
}

/* ── Header ─────────────────────────────────────────────────────── */

.app-header {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in oklch, var(--surface) 94%, transparent);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1600px; margin: 0 auto;
    padding: 12px 24px;
    display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}

.logo {
    display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.logo-icon { width: 30px; height: 30px; }
.logo-text {
    font-size: 15px; font-weight: 700; letter-spacing: -.3px;
    background: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}

.controls { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; flex: 1; }

.color-input-group {
    display: flex; align-items: center;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden; height: 38px;
}
.color-input-group input[type="color"] {
    width: 38px; height: 38px; border: none; padding: 0;
    cursor: pointer; background: transparent; flex-shrink: 0;
}
.color-input-group input[type="color"]::-webkit-color-swatch-wrapper { padding: 4px; }
.color-input-group input[type="color"]::-webkit-color-swatch { border: none; border-radius: 3px; }
.color-input-group input[type="text"] {
    background: transparent; border: none; outline: none;
    color: var(--text); font-family: var(--mono); font-size: 13px;
    padding: 0 12px 0 8px; width: 90px; letter-spacing: .5px;
}
.color-input-group input[type="text"].invalid { color: var(--red); }

.select-group { display: flex; align-items: center; gap: 8px; }
.select-group label { color: var(--text-muted); font-size: 12px; white-space: nowrap; }
.select-group select {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text); font-size: 13px;
    padding: 0 28px 0 10px; height: 38px; cursor: pointer;
    outline: none; appearance: none; -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737a9e' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 8px center;
    min-width: 190px; transition: border-color .15s;
}
.select-group select:hover,
.select-group select:focus { border-color: var(--accent); }
.select-group select option { background: var(--surface-3); }

.btn-primary {
    background: var(--accent); color: var(--btn-text); border: none;
    border-radius: var(--radius-sm); padding: 0 18px;
    height: 38px; font-size: 13px; font-weight: 600;
    cursor: pointer; white-space: nowrap;
    transition: background .15s, color .15s, transform .1s; flex-shrink: 0;
}
.btn-primary:hover  { background: var(--accent-h); color: var(--btn-h-text); }
.btn-primary:active { transform: scale(.97); }

.btn-secondary {
    background: var(--surface-2); color: var(--text);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 0 14px; height: 34px; font-size: 13px; cursor: pointer;
    transition: background .15s, border-color .15s;
}
.btn-secondary:hover { background: var(--surface-3); border-color: var(--border-2); }

.btn-ghost {
    background: transparent; color: var(--text-muted);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 0 12px; height: 34px; font-size: 13px; cursor: pointer;
    transition: color .15s, border-color .15s;
}
.btn-ghost:hover { color: var(--text); border-color: var(--border-2); }

.btn-icon {
    background: transparent; border: none;
    color: var(--text-muted); cursor: pointer;
    font-size: 16px; padding: 4px; border-radius: var(--radius-xs);
    transition: color .15s;
}
.btn-icon:hover { color: var(--text); }

.seed-info {
    margin-left: auto; font-family: var(--mono);
    font-size: 11px; color: var(--text-muted); letter-spacing: .3px; flex-shrink: 0;
}

/* ── Settings / Typography bar ───────────────────────────────────── */

.settings-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 24px;
    border-top: 1px solid var(--border);
    background: color-mix(in oklch, var(--bg) 82%, transparent);
    flex-wrap: wrap;
}

.settings-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .6px;
    color: var(--text-dim);
    flex-shrink: 0;
}

.font-url-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.font-url-group input[type="url"] {
    flex: 1;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 12px;
    font-family: var(--mono);
    padding: 0 12px;
    height: 32px;
    outline: none;
    min-width: 0;
    transition: border-color .15s;
}
.font-url-group input[type="url"]:focus { border-color: var(--accent); }
.font-url-group input[type="url"]::placeholder { color: var(--text-dim); font-family: var(--font); }

/* Loaded font chip */
.font-info { display: flex; align-items: center; gap: 10px; }

.font-chip {
    display: flex; align-items: center; gap: 6px;
    background: var(--surface-3);
    border: 1px solid var(--border-2);
    border-radius: 99px;
    padding: 3px 6px 3px 12px;
    font-size: 12px; font-weight: 600; color: var(--text);
}
.font-chip-name { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.font-chip-clear {
    background: var(--surface-2); border: none; color: var(--text-muted);
    cursor: pointer; width: 18px; height: 18px; border-radius: 50%;
    font-size: 10px; display: flex; align-items: center; justify-content: center;
    transition: background .12s, color .12s;
}
.font-chip-clear:hover { background: var(--red); color: #fff; }

.weight-group { display: flex; align-items: center; gap: 6px; }
.weight-group select {
    background: var(--surface-2); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text); font-size: 12px;
    padding: 0 24px 0 8px; height: 28px; cursor: pointer;
    outline: none; appearance: none; -webkit-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='%23737a9e' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 6px center;
    transition: border-color .15s;
}
.weight-group select:hover, .weight-group select:focus { border-color: var(--accent); }
.weight-group select option { background: var(--surface-3); }

/* ── Theme toggle button ─────────────────────────────────────────── */

.btn-theme-toggle { font-size: 13px; }
.btn-theme-toggle.is-dark {
    background: var(--surface-3);
    border-color: var(--accent);
    color: var(--accent);
}

/* ── M3 theme label pill ─────────────────────────────────────────── */

.m3-theme-label {
    display: inline-block;
    font-size: 10px; font-weight: 600;
    text-transform: uppercase; letter-spacing: .5px;
    padding: 2px 8px; border-radius: 99px;
    background: var(--surface-3); color: var(--text-muted);
    vertical-align: middle; margin-left: 6px;
}

/* ── Settings toggle button ──────────────────────────────────────── */

.btn-settings-toggle { gap: 6px; }
.btn-settings-toggle.active {
    background: var(--surface-3);
    border-color: var(--accent);
    color: var(--accent-h);
}

/* ── Advanced Settings Panel ─────────────────────────────────────── */

.advanced-panel {
    display: none;
    border-top: 1px solid var(--border);
    background: var(--surface);
}
.advanced-panel.open { display: block; }

.advanced-panel-inner {
    max-width: 1600px; margin: 0 auto;
    padding: 14px 24px 16px;
    display: flex; gap: 28px; flex-wrap: wrap; align-items: flex-start;
}

.adv-section {
    display: flex; flex-direction: column; gap: 8px;
    min-width: 160px;
}
.adv-section-title {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: .6px; color: var(--text-muted);
}
.adv-section-sub {
    font-size: 9px; font-weight: 400; text-transform: none;
    letter-spacing: 0; color: var(--text-dim); margin-left: 4px;
}
.adv-section-actions {
    justify-content: flex-end; gap: 10px; padding-top: 4px;
}
.adv-note {
    font-size: 10px; color: var(--text-dim); line-height: 1.5;
    max-width: 200px;
}
.adv-row { display: flex; gap: 10px; flex-wrap: wrap; }

.adv-field { display: flex; flex-direction: column; gap: 4px; }
.adv-field label {
    font-size: 10px; color: var(--text-dim); letter-spacing: .2px;
}

.adv-input {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text); font-size: 12px; font-family: var(--mono);
    padding: 4px 8px; outline: none;
    transition: border-color .15s;
}
.adv-input:focus { border-color: var(--accent); }
.adv-input::placeholder { color: var(--text-dim); font-size: 10px; }
.adv-input-num { width: 76px; }

.adv-slider {
    width: 130px; height: 4px;
    accent-color: var(--accent);
    cursor: pointer;
}
.adv-live-val {
    font-family: var(--mono); font-size: 11px;
    color: var(--accent-h); font-weight: 600;
}

/* Radio options */
.radio-group { display: flex; flex-direction: column; gap: 8px; }
.radio-option {
    display: flex; align-items: flex-start; gap: 8px;
    cursor: pointer;
}
.radio-option input[type="radio"] {
    accent-color: var(--accent); margin-top: 3px; flex-shrink: 0;
    cursor: pointer;
}
.radio-label { font-size: 12px; color: var(--text); }
.radio-desc { font-size: 10px; color: var(--text-dim); margin-top: 1px; line-height: 1.4; }

/* ── Main layout ─────────────────────────────────────────────────── */

.app-main {
    max-width: 1600px; margin: 0 auto;
    padding: 28px 24px 80px;
    display: flex; flex-direction: column; gap: 52px;
}

.section-header { margin-bottom: 18px; }
.section-header h2 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.section-header p { font-size: 12px; color: var(--text-muted); }

/* Row that holds the section h2 + any inline controls (rating toggle, etc.) */
.section-hdr-row {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 4px;
}
.section-hdr-row h2 { margin-bottom: 0; }

/* AAA mode rating toggle */
.btn-rating-toggle {
    font-size: 11px; height: 26px; padding: 0 10px;
    border-radius: var(--radius-xs);
}
.btn-rating-toggle.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--btn-text);
    font-weight: 600;
}

/* Shade indicator badge on M3 pair cards */
.pair-shade-badge {
    display: inline-block;
    font-family: var(--mono); font-size: 8.5px; font-weight: 600;
    background: rgba(0,0,0,.15); color: inherit;
    border-radius: 3px; padding: 1px 5px;
    margin-left: 4px; vertical-align: middle;
    opacity: .75;
}

/* ── Role section (one per key palette) ──────────────────────────── */

.palette-container { display: flex; flex-direction: column; gap: 10px; }

.role-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: visible;
    box-shadow: var(--shadow);
    transition: border-color .2s, box-shadow .2s;
}
.role-section:hover { border-color: var(--border-2); box-shadow: 0 4px 16px rgba(0,0,0,.13); }

.role-header {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 16px 6px;
}
.role-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.role-name { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--text-muted); }
.role-seed { font-family: var(--mono); font-size: 11px; color: var(--text-dim); margin-left: 2px; }

.subsection-label {
    font-size: 10px; font-weight: 600; text-transform: uppercase;
    letter-spacing: .7px; color: var(--text-dim);
    padding: 8px 16px 3px;
}

/* ── Base cards (shades 50–400) ──────────────────────────────────── */

.base-colors-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
    padding: 0 8px 8px;
}

.base-card {
    position: relative;
    border-radius: var(--radius-sm);
    min-height: 180px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform .15s, box-shadow .15s;
    border: 1px solid rgba(0,0,0,.05);
}
.base-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,.15);
}
.base-card.bg-overridden { outline: 2px dashed rgba(255,255,255,.4); outline-offset: -2px; }

/* Text sample area */
.base-sample {
    flex: 1;
    padding: 14px 14px 10px;
    display: flex;
    align-items: flex-start;
}
.sample-display {
    display: flex; flex-direction: column; gap: 4px;
}
.sample-large {
    font-size: 38px; font-weight: 800; line-height: 1;
    letter-spacing: -1px;
}
.sample-body { font-size: 11px; opacity: .8; }

/* Info footer */
.base-footer {
    padding: 8px 12px 10px;
    background: rgba(0,0,0,.08);
    border-top: 1px solid rgba(255,255,255,.06);
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.bf-row {
    display: flex; align-items: center; justify-content: space-between;
    gap: 4px;
}
.bf-top { margin-bottom: 1px; }
.bf-shade {
    font-size: 13px; font-weight: 800; opacity: .95; flex-shrink: 0;
}
.bf-fglabel { font-size: 10px; opacity: .6; flex-shrink: 0; }
.bf-hexval {
    font-family: var(--mono); font-size: 10px;
    letter-spacing: .3px; opacity: .8;
}

/* WCAG pair score (bg ↔ generated text) */
.bf-wcag-pair {
    display: flex; align-items: center; gap: 7px;
    margin-top: 4px;
}
.wcag-ratio { font-size: 13px; font-weight: 800; font-family: var(--mono); }
.wcag-level { font-size: 10px; font-weight: 700; padding: 1px 7px; border-radius: 99px; }
.lv-pass  { background: var(--wcag-pass-bg);  color: var(--wcag-pass-txt); }
.lv-large { background: var(--wcag-large-bg); color: var(--wcag-large-txt); }
.lv-fail  { background: var(--wcag-fail-bg);  color: var(--wcag-fail-txt); }

/* Raw vs white/black */
.bf-raw-scores {
    display: flex; gap: 8px;
    font-family: var(--mono); font-size: 9px;
    margin-top: 3px; opacity: .7;
}
.raw-pass { opacity: .9; }
.raw-fail { opacity: .45; }

/* Edit button on base card (shade override) */
.base-edit-btn {
    position: absolute; top: 6px; right: 6px;
    background: rgba(0,0,0,.25); border: none;
    color: inherit; cursor: pointer;
    font-size: 11px; width: 22px; height: 22px;
    border-radius: var(--radius-xs);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity .15s;
}
.base-card:hover .base-edit-btn { opacity: 1; }

/* Row that contains the fg hex + T override button */
.bf-fg-row {
    display: flex; align-items: center; gap: 4px;
}

/* "T" button — text color override */
.fg-edit-btn {
    margin-left: auto; flex-shrink: 0;
    background: rgba(0,0,0,.18);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-xs);
    color: inherit; cursor: pointer;
    font-size: 9px; font-weight: 800;
    width: 18px; height: 18px;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity .15s, background .12s;
}
.base-card:hover .fg-edit-btn { opacity: 1; }
.fg-edit-btn:hover { background: rgba(0,0,0,.4); }

/* Active state when text color is overridden */
.fg-edit-btn--active {
    opacity: 1 !important;
    background: rgba(255,255,255,.25);
    border-color: rgba(255,255,255,.5);
}

/* Badge on the hex value when fg is overridden */
.fg-overridden-badge {
    text-decoration: underline dotted;
}

/* ── Compact shade scale (all 11) ────────────────────────────────── */

.shades-row {
    display: grid;
    grid-template-columns: repeat(11, 1fr);
    gap: 3px;
    padding: 0 8px 10px;
    overflow: visible;
}

.swatch-wrap { position: relative; z-index: 1; }
.swatch-wrap:hover { z-index: 10; }

.swatch {
    position: relative;
    border-radius: var(--radius-xs);
    height: 96px;
    cursor: pointer;
    overflow: hidden;
    transition: transform .12s, box-shadow .12s;
}
.swatch:hover {
    transform: scaleY(1.06) translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,.20);
}
.swatch.overridden::before {
    content: '✎'; position: absolute; top: 4px; right: 5px;
    font-size: 10px; opacity: .65; pointer-events: none;
}

.sw-inner {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    justify-content: flex-end;
    padding: 5px 5px 4px;
    pointer-events: none;
}
.sw-num { font-size: 11px; font-weight: 800; opacity: .9; line-height: 1.2; }
.sw-hex { font-family: var(--mono); font-size: 8.5px; opacity: .7; letter-spacing: .2px; line-height: 1.3; }
.sw-wcag { margin-top: 3px; display: flex; flex-direction: column; gap: 1px; }
.wcag-row { font-family: var(--mono); font-size: 8px; line-height: 1.5; }
.w-pass { opacity: .9; }
.w-fail { opacity: .45; }

/* Edit button on swatch */
.sw-edit-btn {
    position: absolute; top: 4px; right: 4px;
    background: rgba(0,0,0,.3); border: none; color: white;
    cursor: pointer; font-size: 10px;
    width: 18px; height: 18px;
    border-radius: 3px;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity .15s;
}
.swatch:hover .sw-edit-btn { opacity: 1; }

/* ── M3 Color Roles section ──────────────────────────────────────── */

.m3-groups { display: flex; flex-direction: column; gap: 8px; }

.m3-group {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.m3-group-header {
    display: flex; align-items: baseline; gap: 12px;
    padding: 10px 16px;
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
}
.m3-group-name {
    font-size: 12px; font-weight: 700;
    text-transform: uppercase; letter-spacing: .6px; color: var(--text);
    flex-shrink: 0;
}
.m3-group-desc { font-size: 11px; color: var(--text-muted); }

.m3-pairs-wrap {
    display: flex; flex-wrap: wrap;
    gap: 1px; background: var(--border-2);
}

/* Paired role card */
.pair-card {
    flex: 1; min-width: 180px; max-width: 320px;
    background: var(--surface);
    display: flex; flex-direction: column;
    cursor: pointer;
    transition: filter .15s;
}
.pair-card:hover { filter: brightness(1.04); }

/* Demo box — the "sample square" with bg color + text color */
.pair-demo {
    padding: 16px 16px 12px;
    min-height: 110px;
    display: flex; flex-direction: column; justify-content: flex-end;
    gap: 3px;
}
.pd-role-label {
    font-size: 9.5px; font-weight: 600;
    text-transform: uppercase; letter-spacing: .5px; opacity: .65;
}
.pd-sample { font-size: 30px; font-weight: 800; line-height: 1; }
.pd-body   { font-size: 11px; opacity: .75; margin-bottom: 2px; }
.pd-on-label { font-size: 9.5px; opacity: .5; }

/* WCAG bar — always shown below demo */
.pair-wcag-bar {
    padding: 8px 16px;
    background: var(--surface-2);
    border-top: 1px solid var(--border);
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.pwb-score  { display: flex; align-items: center; gap: 7px; }
.pwb-ratio  { font-family: var(--mono); font-size: 14px; font-weight: 800; color: var(--text); }
.pwb-level  { font-size: 10px; font-weight: 700; padding: 2px 8px; border-radius: 99px; }

.pwb-hexes {
    margin-left: auto;
    display: flex; flex-direction: column; align-items: flex-end;
    gap: 1px;
}
.pwb-hex { font-family: var(--mono); font-size: 9.5px; color: var(--text-muted); }

/* Single-role card (outline, shadow, scrim) */
.pair-single-swatch {
    padding: 14px 16px;
    min-height: 70px;
    display: flex; align-items: flex-end; justify-content: space-between;
    flex-direction: column;
}
.ps-label { font-size: 11px; font-weight: 600; color: inherit; }
.ps-hex   { font-family: var(--mono); font-size: 10px; color: inherit; opacity: .65; margin-top: auto; }

/* ── Export ──────────────────────────────────────────────────────── */

.export-tabs {
    display: flex; border: 1px solid var(--border);
    border-radius: var(--radius-sm); overflow: hidden;
    width: fit-content; margin-bottom: 12px;
}
.export-tab {
    background: var(--surface); border: none;
    color: var(--text-muted); padding: 8px 18px;
    font-size: 13px; cursor: pointer;
    border-right: 1px solid var(--border);
    transition: background .12s, color .12s;
}
.export-tab:last-child { border-right: none; }
.export-tab:hover { background: var(--surface-2); color: var(--text); }
.export-tab.active { background: var(--surface-3); color: var(--text); font-weight: 600; }
.export-tab-divider {
    width: 1px; align-self: stretch;
    background: var(--border-2); flex-shrink: 0;
}

.export-body { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.export-actions {
    display: flex; justify-content: flex-end;
    padding: 10px 14px;
    background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.export-output {
    font-family: var(--mono); font-size: 12px; line-height: 1.7;
    color: var(--accent-h); padding: 16px 20px;
    max-height: 420px; overflow-y: auto; overflow-x: auto;
    white-space: pre;
}
.export-output::-webkit-scrollbar { width: 6px; height: 6px; }
.export-output::-webkit-scrollbar-track { background: var(--surface); }
.export-output::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 3px; }

/* ── Override popover ────────────────────────────────────────────── */

.override-backdrop {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(0,0,0,.55); backdrop-filter: blur(3px);
}
.override-popover {
    position: fixed; top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    z-index: 201;
    background: var(--surface-2);
    border: 1px solid var(--border-2);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 300px; overflow: hidden;
}
.override-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 16px; border-bottom: 1px solid var(--border);
    font-size: 13px; font-weight: 600;
}
.override-body { padding: 16px; display: flex; gap: 10px; align-items: center; }
.override-body input[type="color"] {
    width: 46px; height: 46px;
    border: 2px solid var(--border-2); border-radius: var(--radius-sm);
    cursor: pointer; padding: 0; background: transparent; flex-shrink: 0;
}
.override-body input[type="color"]::-webkit-color-swatch-wrapper { padding: 4px; }
.override-body input[type="color"]::-webkit-color-swatch { border: none; border-radius: 4px; }
.override-body input[type="text"] {
    flex: 1; background: var(--surface-3);
    border: 1px solid var(--border-2); border-radius: var(--radius-sm);
    color: var(--text); font-family: var(--mono);
    font-size: 14px; padding: 10px 12px; outline: none;
    letter-spacing: 1px; transition: border-color .15s;
}
.override-body input[type="text"]:focus { border-color: var(--accent); }
.override-footer {
    display: flex; gap: 8px; justify-content: flex-end;
    padding: 12px 16px; border-top: 1px solid var(--border);
}

/* ── Toast ───────────────────────────────────────────────────────── */

.toast {
    position: fixed; bottom: 24px; left: 50%;
    transform: translateX(-50%) translateY(16px);
    background: var(--surface-3); color: var(--text);
    border: 1px solid var(--border-2); border-radius: 99px;
    padding: 9px 20px; font-size: 13px;
    box-shadow: var(--shadow); opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
    white-space: nowrap; z-index: 500;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.toast-error { border-color: #7f1d1d; color: #fca5a5; }

/* ── Scrollbar ───────────────────────────────────────────────────── */
::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--surface-2); }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ── Responsive ──────────────────────────────────────────────────── */

@media (max-width: 1100px) {
    .shades-row { grid-template-columns: repeat(6, 1fr); }
    .base-colors-row { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 700px) {
    .header-inner { padding: 10px 14px; gap: 10px; }
    .app-main { padding: 16px 12px 60px; }
    .shades-row { grid-template-columns: repeat(4, 1fr); gap: 2px; }
    .swatch { height: 80px; }
    .base-colors-row { grid-template-columns: repeat(2, 1fr); }
    .seed-info { display: none; }
    .pair-card { min-width: 140px; }
}