* { box-sizing: border-box; }
body { background: #111; color: #eee; font-family: Arial, sans-serif; padding: 20px; margin: 0; }
h1 { margin: 0; font-size: 1.6em; color: #7bf; letter-spacing: .03em; }

.site-header {
    display: flex; align-items: center; gap: 14px;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid #2a2a2a;
}
.site-logo svg { display: block; flex-shrink: 0; }
.site-title-group { display: flex; flex-direction: column; gap: 3px; }
.site-tagline { margin: 0; font-size: 12px; color: #667; line-height: 1.4; }

#dropzone {
    border: 2px dashed #555; padding: 18px; text-align: center;
    margin-bottom: 8px; border-radius: 6px; color: #777;
    cursor: pointer; transition: border-color .2s, color .2s; user-select: none;
}
#dropzone:hover, #dropzone.hover { border-color: #7bf; color: #7bf; }

textarea {
    width: 100%; height: 140px; margin: 6px 0;
    background: #1a1a1a; color: #ccc; border: 1px solid #444;
    border-radius: 4px; padding: 8px; font-family: monospace; font-size: 12px; resize: vertical;
}

.toolbar { display: flex; gap: 8px; margin: 6px 0; }
.toolbar-link {
    display: inline-flex; align-items: center;
    background: #1b355f; color: #fff; border: 1px solid #3f6db0;
    padding: 8px 18px; border-radius: 4px; text-decoration: none; font-size: 13px;
}
.toolbar-link:hover { background: #27508f; }

/* ─── Tab bar ─────────────────────────────────────────────────────────────────── */
.tab-bar {
    display: flex; gap: 2px;
    border-bottom: 2px solid #2a2a2a;
    margin: 12px 0 0;
}
.tab-btn {
    background: none; border: none; border-bottom: 2px solid transparent;
    color: #666; padding: 7px 22px; font-size: 13px; font-family: inherit;
    border-radius: 4px 4px 0 0; cursor: pointer; margin-bottom: -2px;
    transition: color .15s, background .15s;
}
.tab-btn:hover { background: #1a1a1a; color: #aaa; }
.tab-btn.active { color: #7bf; border-bottom-color: #4a9eff; background: #13131e; }
.tab-panel { margin-top: 4px; }
button {
    background: #236; color: #fff; border: none; padding: 8px 18px;
    border-radius: 4px; cursor: pointer; font-size: 13px;
}
button:hover { background: #347; }

.controls {
    display: flex; flex-wrap: wrap; gap: 16px; align-items: center;
    margin: 10px 0; font-size: 13px;
}
.controls label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
input[type=range] { cursor: pointer; width: 120px; }

#sprites { display: flex; flex-wrap: wrap; gap: 16px; margin: 16px 0; }

.sprite-card {
    background: #1a1a1a; border: 1px solid #2d2d2d;
    border-radius: 6px; padding: 10px; max-width: 100%;
}
.sprite-label { font-size: 12px; font-weight: bold; margin-bottom: 6px; color: #7df; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.sprite-label .label-text { flex: 1; min-width: 0; word-break: break-all; }
.sprite-label .dim { color: #555; font-weight: normal; }
.save-png-btns { display: flex; gap: 4px; flex-shrink: 0; }
.save-png-btn {
    background: #1a1a2a; border: 1px solid #335; color: #99c;
    padding: 2px 7px; font-size: 11px; border-radius: 3px;
}
.save-png-btn:hover { background: #223; border-color: #55a; color: #bbf; }

canvas { display: block; image-rendering: pixelated; border: 1px solid #222; }

.frames-row { display: flex; flex-wrap: wrap; gap: 10px; }
.frame-wrap { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.frame-num { font-size: 10px; color: #666; }

details { margin: 10px 0; }
summary { cursor: pointer; font-size: 13px; color: #999; padding: 4px 0; }
summary:hover { color: #eee; }

pre#validation {
    font-size: 12px; background: #1a1a1a; border: 1px solid #2d2d2d;
    border-radius: 4px; padding: 10px; margin: 6px 0;
    white-space: pre-wrap; line-height: 1.7;
}

/* ── BG selector ── */
.bg-label { display: flex; align-items: center; gap: 6px; }
select {
    background: #1e1e1e; color: #ccc; border: 1px solid #444;
    border-radius: 4px; padding: 3px 6px; font-size: 12px; cursor: pointer;
}
select:hover { border-color: #7bf; }
input[type=color] {
    width: 28px; height: 24px; padding: 1px 2px;
    border: 1px solid #444; border-radius: 4px; cursor: pointer;
    background: none;
}

/* ── Animation preview ── */
.anim-wrap {
    display: flex; flex-direction: column; align-items: flex-start;
    gap: 6px; margin-bottom: 10px;
}
.anim-controls {
    display: flex; align-items: center; gap: 10px;
}
.anim-btn {
    padding: 4px 10px; font-size: 14px; min-width: 36px;
    background: #1a3a1a; border: 1px solid #3a7a3a;
}
.anim-btn:hover { background: #2a5a2a; }
.anim-fps-label {
    display: flex; align-items: center; gap: 6px;
    font-size: 12px; color: #aaa; cursor: default;
}
.anim-fps-label input[type=range] { width: 80px; }
.anim-fps-label span { min-width: 18px; text-align: right; color: #ccc; }

/* ─── Font section ─────────────────────────────────────────────────────────── */
.section-header {
    width: 100%; font-size: 1em; font-weight: bold; color: #7bf;
    margin: 16px 0 8px; padding-bottom: 4px; border-bottom: 1px solid #2d2d2d;
}
.font-card {
    background: #1a1a1a; border: 1px solid #2d2d2d;
    border-radius: 6px; padding: 10px; margin-bottom: 12px; width: 100%;
}
.font-editors-note {
    font-size: 12px; color: #667; margin: 12px 0 4px;
}
.font-editors-note a { color: #7bf; text-decoration: none; }
.font-editors-note a:hover { text-decoration: underline; }

.font-meta {
    font-size: 11px; color: #778; margin: 3px 0 8px;
}
.font-meta b { color: #99b; font-weight: normal; }

.font-preview-row {
    display: flex; align-items: center; gap: 8px; margin: 6px 0;
}
.font-text-input {
    flex: 1; max-width: 400px;
    background: #111; color: #eee; border: 1px solid #444;
    border-radius: 4px; padding: 5px 8px; font-size: 13px;
}
.font-text-input:focus { outline: none; border-color: #7bf; }
.font-preview-canvas {
    display: block; margin: 4px 0 12px;
    image-rendering: pixelated; border: 1px solid #222;
}
.font-charmap {
    display: flex; flex-wrap: wrap; gap: 5px;
}
.font-char-cell {
    display: flex; flex-direction: column; align-items: center;
    gap: 2px; cursor: default;
}
.font-char-cell canvas { image-rendering: pixelated; border: 1px solid #1e1e1e; }
.font-char-empty { background: #161616; border: 1px dashed #252525; }
.font-char-label { font-size: 9px; color: #555; line-height: 1; font-family: monospace; }

/* ─── 1-bit mono color pickers ──────────────────────────────────────────────── */
.mono-pickers {
    display: flex; align-items: center; gap: 10px;
    margin-top: 6px; font-size: 11px; color: #aaa;
}
.mono-picker-label {
    display: flex; align-items: center; gap: 4px; cursor: pointer;
}
/* ─── Font subset panel ──────────────────────────────────────────────────────── */
.font-subset-panel {
    margin-top: 12px; border-top: 1px solid #2d2d2d; padding-top: 8px;
}
.font-subset-panel > summary {
    font-size: 12px; color: #7bf; cursor: pointer; padding: 2px 0;
}
.font-subset-panel > summary:hover { color: #adf; }
.font-subset-body {
    display: flex; flex-direction: column; gap: 8px; margin-top: 8px;
}
.font-subset-presets {
    display: flex; flex-wrap: wrap; gap: 5px;
}
.subset-preset-btn {
    padding: 3px 9px; font-size: 11px;
    background: #1a2030; border: 1px solid #334; color: #99c; border-radius: 3px;
}
.subset-preset-btn:hover { background: #223; border-color: #55a; color: #bbf; }
.font-subset-input-row {
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.font-subset-chars {
    flex: 1; min-width: 200px; max-width: 420px;
    background: #111; color: #eee; border: 1px solid #444;
    border-radius: 4px; padding: 4px 8px; font-size: 13px; font-family: monospace;
}
.font-subset-chars:focus { outline: none; border-color: #7bf; }
.font-subset-count { font-size: 11px; white-space: nowrap; }
.font-subset-dl-row {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.font-subset-name {
    width: 200px;
    background: #111; color: #eee; border: 1px solid #444;
    border-radius: 4px; padding: 4px 8px; font-size: 13px; font-family: monospace;
}
.font-subset-name:focus { outline: none; border-color: #7bf; }
.subset-dl-btn {
    padding: 5px 14px; font-size: 12px;
    background: #1a3a1a; border: 1px solid #3a7a3a; color: #8d8;
    border-radius: 4px;
}
.subset-dl-btn:hover { background: #2a5a2a; border-color: #5a9a5a; color: #aea; }
/* ─── Pixel hover inspector ──────────────────────────────────────────────── */
#px-tooltip {
    position: fixed; display: none; pointer-events: none; z-index: 9999;
    background: #111d; border: 1px solid #444; border-radius: 5px;
    padding: 5px 8px; font: 11px/1.6 monospace; color: #eee;
    white-space: nowrap; box-shadow: 0 2px 8px #0008;
}
#px-tooltip .px-swatch {
    display: inline-block; width: 12px; height: 12px;
    border: 1px solid #555; border-radius: 2px;
    vertical-align: middle; margin-right: 5px;
}