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

:root {
    --color-bg: #0f0f0c;
    --color-surface: #1a1a16;
    --color-surface-hover: #222218;
    --color-surface-sunken: #131310;
    --color-border: #2e2e24;
    --color-text: #e8e4d4;
    --color-text-muted: #9a9686;
    --color-accent: #c4a24e;
    --color-accent-dim: rgba(196, 162, 78, 0.15);
    --color-error: #c45e4e;
    --color-warn: #d2a03c;
    --color-success: #4a9e6e;
    --font-body: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.55;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.app { max-width: 1500px; margin: 0 auto; padding: 1.25rem 1.25rem 3rem; }

/* ── top bar ── */
.topbar {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem;
}
.brand h1 { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.02em; line-height: 1.2; }
.brand h1 .accent { color: var(--color-accent); }
.brand p { color: var(--color-text-muted); font-size: 0.9rem; }
.topbar-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* ── buttons ── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
    padding: 0.5rem 0.95rem; border: 1px solid var(--color-border); border-radius: 8px;
    background: var(--color-surface); color: var(--color-text);
    font-family: var(--font-body); font-size: 0.85rem; font-weight: 600;
    cursor: pointer; transition: background .14s, border-color .14s, color .14s;
    text-decoration: none; user-select: none; white-space: nowrap;
}
.btn:hover { background: var(--color-surface-hover); border-color: var(--color-accent); }
.btn-primary { background: var(--color-accent); color: #14140f; border-color: var(--color-accent); }
.btn-primary:hover { background: #d8b662; border-color: #d8b662; }
.btn-small { padding: 0.32rem 0.6rem; font-size: 0.78rem; }
.btn-ghost { background: transparent; color: var(--color-text-muted); }
.btn-danger { color: var(--color-error); border-color: rgba(196,94,78,.45); }
.btn-danger:hover { background: rgba(196,94,78,.14); border-color: var(--color-error); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* ── party tabs ── */
.party {
    display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: 10px; padding: .5rem .6rem; margin-bottom: 1rem;
}
.party-tabs { display: flex; gap: .35rem; flex: 1; flex-wrap: wrap; min-width: 0; }
.party-tab {
    padding: .35rem .75rem; border-radius: 7px; border: 1px solid transparent;
    background: var(--color-surface-sunken); color: var(--color-text-muted);
    font-size: .82rem; font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: .45rem;
}
.party-tab:hover { color: var(--color-text); }
.party-tab.active { background: var(--color-accent-dim); border-color: var(--color-accent); color: var(--color-text); }
.party-tab .swatch { width: 10px; height: 14px; border-radius: 2px; display: inline-block; }
.party-actions { display: flex; gap: .35rem; }

/* ── layout ── */
.workspace { display: grid; grid-template-columns: minmax(320px, 400px) 1fr; gap: 1.25rem; align-items: start; }
.controls { display: flex; flex-direction: column; gap: .9rem; }
.stage { position: sticky; top: 1rem; display: flex; flex-direction: column; gap: 1rem; }

@media (max-width: 980px) {
    .workspace { grid-template-columns: 1fr; }
    .stage { position: static; order: -1; }
}

@media (max-width: 620px) {
    .app { padding: 1rem .75rem 2rem; }
    .party { flex-direction: column; align-items: stretch; }
    .party-tabs { flex-wrap: nowrap; overflow-x: auto; padding-bottom: .2rem; }
    .party-tab { flex: none; }
    .party-actions { justify-content: flex-end; }
    .field { grid-template-columns: 1fr; gap: .25rem; }
    .viewport { height: 58vh; }
}

/* ── cards ── */
.card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: 12px; padding: 1rem 1.1rem;
}
.card h2 {
    font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
    color: var(--color-text-muted); margin-bottom: .85rem;
}
.card.collapsible h2 { margin-bottom: .85rem; }
.card.collapsible button.toggle {
    all: unset; box-sizing: border-box; cursor: pointer; width: 100%;
    display: flex; justify-content: space-between; align-items: center;
    font: inherit; color: inherit; letter-spacing: inherit; text-transform: inherit;
}
.card.collapsible button.toggle:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: 4px; }
.card.collapsible .chev { transition: transform .18s; }
.card.collapsed .chev { transform: rotate(-90deg); }
.card.collapsed .card-body { display: none; }
.card.collapsed h2 { margin-bottom: 0; }

/* ── fields ── */
.field { display: grid; grid-template-columns: 1fr 1.15fr; gap: .5rem; align-items: center; margin-bottom: .6rem; }
.field.stack { grid-template-columns: 1fr; }
.field-label { font-size: .8rem; color: var(--color-text-muted); font-weight: 500; }
.field-label em { font-style: normal; opacity: .6; font-size: .74rem; }
.field-input { display: grid; grid-template-columns: 1fr 62px; gap: .4rem; align-items: center; }

input[type="text"], input[type="number"], input[type="search"], select {
    width: 100%; padding: .42rem .55rem;
    background: var(--color-surface-sunken); border: 1px solid var(--color-border);
    border-radius: 7px; color: var(--color-text);
    font-family: var(--font-body); font-size: .85rem;
}
input[type="number"] { font-family: var(--font-mono); font-size: .78rem; padding: .42rem .35rem; text-align: right; }
input:focus, select:focus { border-color: var(--color-accent); }
input:focus:not(:focus-visible), select:focus:not(:focus-visible) { outline: none; }
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible {
    outline: 2px solid var(--color-accent); outline-offset: 2px;
}
input[type="file"] { font-size: .78rem; color: var(--color-text-muted); }
input[type="file"]::file-selector-button {
    background: var(--color-surface-hover); color: var(--color-text); border: 1px solid var(--color-border);
    border-radius: 6px; padding: .28rem .55rem; margin-right: .5rem; font-size: .78rem; cursor: pointer;
}

input[type="range"] {
    -webkit-appearance: none; appearance: none; width: 100%; height: 4px;
    background: var(--color-border); border-radius: 3px; outline: none;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; width: 15px; height: 15px; border-radius: 50%;
    background: var(--color-accent); cursor: pointer; border: 2px solid var(--color-bg);
}
input[type="range"]::-moz-range-thumb {
    width: 13px; height: 13px; border-radius: 50%; background: var(--color-accent);
    cursor: pointer; border: 2px solid var(--color-bg);
}

.check { display: inline-flex; align-items: center; gap: .4rem; font-size: .82rem; color: var(--color-text-muted); cursor: pointer; }
.check input { accent-color: var(--color-accent); }
.row { display: flex; gap: 1rem; flex-wrap: wrap; margin: .5rem 0; }
.row.colors { gap: .6rem; }
.color { display: inline-flex; align-items: center; gap: .4rem; font-size: .8rem; color: var(--color-text-muted); }
input[type="color"] {
    width: 34px; height: 26px; padding: 0; border: 1px solid var(--color-border);
    border-radius: 5px; background: none; cursor: pointer;
}
.hint { font-size: .76rem; color: var(--color-text-muted); margin-top: .55rem; line-height: 1.5; }

/* ── presets ── */
.preset-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: .5rem; }
.preset {
    display: flex; align-items: center; gap: .5rem; padding: .45rem .55rem;
    background: var(--color-surface-sunken); border: 1px solid var(--color-border);
    border-radius: 8px; cursor: pointer; font-size: .78rem; font-weight: 600; text-align: left;
    color: var(--color-text);
}
.preset:hover { border-color: var(--color-accent); }
.preset .chip { width: 14px; height: 20px; border-radius: 2px 2px 0 0; flex: none; }

/* ── subtitle lines ── */
.sub-lines { display: flex; flex-direction: column; gap: .4rem; margin-bottom: .5rem; }
.sub-line { display: grid; grid-template-columns: 1fr auto; gap: .35rem; }
.sub-line button { padding: .3rem .5rem; }

/* ── icon picker ── */
.icon-toolbar { display: grid; grid-template-columns: 1fr 130px; gap: .4rem; margin-bottom: .6rem; }
.icon-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(52px, 1fr)); gap: .35rem;
    max-height: 260px; overflow-y: auto; padding: .35rem;
    background: var(--color-surface-sunken); border: 1px solid var(--color-border); border-radius: 8px;
}
.icon-cell {
    aspect-ratio: 1; display: grid; place-items: center; border-radius: 6px; cursor: pointer;
    border: 1px solid transparent; background: transparent; padding: 5px;
}
.icon-cell:hover { background: var(--color-surface-hover); }
.icon-cell.active { border-color: var(--color-accent); background: var(--color-accent-dim); }
.icon-cell svg { width: 100%; height: 100%; fill: var(--color-text); display: block; }
.icon-cell.active svg { fill: var(--color-accent); }
.custom-icon[hidden] { display: none; }
.custom-icon {
    display: flex; align-items: center; justify-content: space-between; gap: .5rem;
    margin-top: .5rem; padding: .4rem .55rem; border-radius: 7px;
    background: var(--color-accent-dim); border: 1px solid rgba(196,162,78,.4);
    font-size: .8rem;
}
.icon-empty { grid-column: 1 / -1; text-align: center; color: var(--color-text-muted); font-size: .8rem; padding: 1rem; }

/* ── viewport ── */
.viewport {
    position: relative; background: linear-gradient(180deg, #16160f 0%, #0d0d0a 100%);
    border: 1px solid var(--color-border); border-radius: 12px; overflow: hidden;
    height: min(62vh, 620px); min-height: 340px;
}
.viewport canvas { width: 100%; height: 100%; display: block; touch-action: none; }
.viewport-tools { position: absolute; top: .6rem; right: .6rem; display: flex; gap: .5rem; align-items: center; }
.viewport-tools .check { background: rgba(15,15,12,.75); padding: .25rem .5rem; border-radius: 6px; }
.viewport-fallback {
    position: absolute; inset: 0; display: grid; place-content: center; text-align: center;
    padding: 2rem; color: var(--color-text-muted); font-size: .86rem; line-height: 1.6;
}
.viewport-status {
    position: absolute; left: .6rem; bottom: .6rem; font-family: var(--font-mono);
    font-size: .72rem; color: var(--color-text-muted); background: rgba(15,15,12,.7);
    padding: .2rem .5rem; border-radius: 6px;
}

/* ── stage panel ── */
.stage-panel { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 12px; padding: 1rem 1.1rem; }
.stage-panel h3 { font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--color-text-muted); margin: .9rem 0 .6rem; }
.metrics { display: flex; gap: 1.1rem; flex-wrap: wrap; font-family: var(--font-mono); font-size: .76rem; color: var(--color-text-muted); }
.metrics b { color: var(--color-text); font-weight: 500; }
.warnings { display: flex; flex-direction: column; gap: .4rem; margin-bottom: .6rem; }
.warnings:empty { display: none; }
.warning {
    font-size: .78rem; line-height: 1.45; padding: .5rem .65rem; border-radius: 7px;
    background: rgba(210,160,60,.1); border: 1px solid rgba(210,160,60,.35); color: #e6c887;
}
.print-hint { font-size: .76rem; color: var(--color-text-muted); margin-bottom: .55rem; }
.download-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: .45rem; margin-bottom: .5rem; }
.download-row { display: flex; gap: .45rem; flex-wrap: wrap; margin-top: .45rem; }
.part-btn { justify-content: flex-start; gap: .5rem; }
.part-btn .swatch { width: 12px; height: 12px; border-radius: 3px; flex: none; border: 1px solid rgba(255,255,255,.2); }

/* ── misc ── */
.help ol { padding-left: 1.1rem; display: flex; flex-direction: column; gap: .5rem; }
.help li { font-size: .8rem; color: var(--color-text-muted); line-height: 1.5; }
.help strong { color: var(--color-text); }
.footer { margin-top: 1.5rem; text-align: center; font-size: .76rem; color: var(--color-text-muted); }
.footer a { color: var(--color-accent); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

.toast {
    position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%);
    background: var(--color-surface); border: 1px solid var(--color-accent);
    color: var(--color-text); padding: .6rem 1rem; border-radius: 8px;
    font-size: .84rem; z-index: 50; box-shadow: 0 8px 30px rgba(0,0,0,.5);
}
.toast.error { border-color: var(--color-error); color: #f0b6ab; }