:root {
  --bg: #0b1020;
  --panel: #141c33;
  --panel-2: #18213c;
  --line: #2b3866;
  --text: #e9eefb;
  --muted: #8f9ec9;
  --accent: #4dd0ff;
  --accent-2: #ff6ad5;
  --danger: #ff6b6b;
  --topbar-h: 48px;
  --rail: 66px;
  --panel-w: 288px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, -apple-system, sans-serif;
  font-size: 14px;
  -webkit-text-size-adjust: 100%;
  user-select: none;
}
button, input { font-family: inherit; color: inherit; }
[hidden] { display: none !important; }
button { cursor: pointer; }

#app {
  display: flex;
  flex-direction: column;
  height: 100%;
  height: 100dvh;
}

/* ---------- 上のバー ---------- */
#topbar {
  flex: none;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
  padding-top: env(safe-area-inset-top);
  height: calc(var(--topbar-h) + env(safe-area-inset-top));
  background: linear-gradient(180deg, #131c36, #0e1428);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}
.brand {
  font-weight: 700;
  letter-spacing: 0.03em;
  font-size: 15px;
  white-space: nowrap;
}
.flex { flex: 1; }
.tb-btn {
  min-width: 36px;
  height: 34px;
  padding: 0 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 15px;
  background: #1c2745;
  border: 1px solid var(--line);
  border-radius: 9px;
  text-decoration: none;
  color: var(--text);
}
.tb-btn:hover { background: #24305a; }
.tb-btn:disabled { opacity: 0.35; cursor: default; }
.tb-btn.accent {
  background: linear-gradient(180deg, #2f6ea6, #24557f);
  border-color: #3f8dc7;
  font-size: 13px;
  font-weight: 700;
}
@media (max-width: 560px) {
  .brand { display: none; }
  .tb-btn.accent .lbl { display: none; }
}

/* ---------- 本体レイアウト ---------- */
#body {
  flex: 1;
  min-height: 0;
  display: flex;
}

#tools {
  flex: none;
  width: var(--rail);
  background: #101830;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  overflow: auto;
}
.tool-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}
.tool {
  width: 50px;
  height: 46px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  font-size: 18px;
  background: #1a2440;
  border: 1px solid var(--line);
  border-radius: 11px;
  line-height: 1;
}
.tool small { font-size: 9px; color: var(--muted); }
.tool.active {
  background: linear-gradient(180deg, #2b6fa0, #1f4f76);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(77, 208, 255, 0.35) inset;
}
.tool.active small { color: #d6f2ff; }
.zoom {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--muted);
}
.zoom .tool { height: 32px; width: 44px; font-size: 16px; }

#stage {
  position: relative;
  flex: 1;
  min-width: 0;
  background:
    radial-gradient(700px 420px at 50% 0%, #182347 0%, transparent 70%),
    #0a0f1e;
  overflow: hidden;
  touch-action: none;
}
#view { display: block; touch-action: none; cursor: crosshair; }
#ring {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.55);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 5;
}

#toast {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%) translateY(10px);
  background: rgba(10, 15, 30, 0.92);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  z-index: 10;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

#challenge-bar {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100% - 24px);
  background: rgba(12, 18, 36, 0.93);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 6px 8px 6px 16px;
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.5);
  z-index: 8;
}
.ch-theme { font-weight: 700; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ch-time { font-variant-numeric: tabular-nums; color: var(--accent); font-weight: 700; }
.ch-time.warn { color: #ffd166; }
.ch-time.hot { color: var(--danger); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0.35; } }
.ch-give {
  background: linear-gradient(180deg, #ffcc4d, #f0a92c);
  color: #221800;
  font-weight: 700;
  border: none;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
}

/* ---------- 右パネル ---------- */
#panel {
  flex: none;
  width: var(--panel-w);
  background: var(--panel);
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.tabs {
  flex: none;
  display: flex;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}
.tab {
  flex: 1;
  padding: 10px 4px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  border-bottom: 2px solid transparent;
}
.tab.active { color: var(--text); border-bottom-color: var(--accent); }
.tab-toggle {
  display: none;
  width: 42px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 16px;
}
.tab-body { flex: 1; overflow: auto; padding: 12px; min-height: 0; }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

.field { display: block; margin-bottom: 14px; }
.field-head {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 5px;
}
.field-head b { color: var(--text); font-variant-numeric: tabular-nums; }
input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 22px;
  background: none;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 3px;
  background: #222e52;
}
input[type="range"]::-moz-range-track { height: 6px; border-radius: 3px; background: #222e52; }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px;
  margin-top: -7px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0b1020;
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0b1020;
}

.brush-preview {
  background: #f6f7fb;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 14px;
}
#brush-preview { display: block; width: 100%; height: 56px; }

.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg button {
  flex: 1 1 auto;
  min-width: 52px;
  padding: 7px 6px;
  font-size: 12px;
  background: #1a2440;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.seg button.active { background: #2b6fa0; border-color: var(--accent); }

/* 色 */
.picker { display: flex; gap: 8px; margin-bottom: 12px; }
#sv { flex: 1; width: 100%; height: 160px; border-radius: 8px; cursor: crosshair; touch-action: none; }
#hue { width: 24px; height: 160px; border-radius: 8px; cursor: pointer; touch-action: none; }
.color-row { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.swatch-current {
  width: 34px; height: 34px;
  border-radius: 9px;
  border: 2px solid #fff3;
  box-shadow: 0 2px 8px #0006;
}
#hex {
  flex: 1;
  min-width: 0;
  background: #101830;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  font-size: 13px;
}
.mini {
  padding: 7px 9px;
  font-size: 12px;
  background: #1a2440;
  border: 1px solid var(--line);
  border-radius: 8px;
  white-space: nowrap;
}
.mini:hover { background: #24305a; }
.mini.danger { border-color: #5e2740; color: #ffb3c4; }
.swatches { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; }
.swatches button {
  aspect-ratio: 1;
  border-radius: 7px;
  border: 1px solid #ffffff22;
  padding: 0;
}
.swatches button.on { outline: 2px solid var(--accent); outline-offset: 1px; }

/* レイヤー */
.layer-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.layer-list { display: flex; flex-direction: column-reverse; gap: 6px; }
.layer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.layer.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.layer .eye {
  width: 28px; height: 28px;
  flex: none;
  background: none;
  border: none;
  font-size: 15px;
  opacity: 0.9;
}
.layer .eye.off { opacity: 0.3; }
.layer .thumb {
  width: 46px; height: 36px;
  flex: none;
  border-radius: 6px;
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #d9dce6 25%, transparent 25%, transparent 75%, #d9dce6 75%),
    linear-gradient(45deg, #d9dce6 25%, transparent 25%, transparent 75%, #d9dce6 75%);
  background-size: 12px 12px;
  background-position: 0 0, 6px 6px;
  position: relative;
  overflow: hidden;
  border: 1px solid #0006;
}
.layer .thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.layer .meta { flex: 1; min-width: 0; }
.layer .nm {
  display: block;
  font-size: 12.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.layer .op { font-size: 11px; color: var(--muted); }

/* ---------- モーダル ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 18, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
  overflow: auto;
}
.modal[hidden] { display: none; }
.sheet {
  width: 100%;
  max-width: 400px;
  max-height: 90vh;
  overflow: auto;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 24px 60px #000a;
}
.sheet.wide { max-width: 720px; }
.sheet h2 { margin: 0 0 12px; font-size: 18px; }
.sheet h3 { margin: 16px 0 6px; font-size: 14px; color: var(--accent); }
.note { margin: 0 0 12px; color: var(--muted); font-size: 13px; line-height: 1.6; }
.row-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  margin-top: 8px;
  background: #1a2440;
  border: 1px solid var(--line);
  border-radius: 11px;
  font-size: 14px;
}
.row-btn:hover { background: #24305a; }
.row-btn.accent {
  text-align: center;
  font-weight: 700;
  background: linear-gradient(180deg, #2f8fd0, #2166a0);
  border-color: #4aa9e6;
}
.row-btn.ghost { background: none; color: var(--muted); text-align: center; }
.row-btn.danger { border-color: #5e2740; color: #ffb3c4; }
.help { margin: 0; padding-left: 18px; color: var(--muted); font-size: 13px; line-height: 1.75; }
.help b { color: var(--text); }
.check { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); margin: 10px 0; }
.theme-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #101830;
  border: 1px dashed var(--accent);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 14px;
}
.theme-box span { flex: 1; font-size: 17px; font-weight: 700; }

.result-shot {
  background: #0a0f1e;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 12px;
}
.result-shot img { display: block; width: 100%; max-height: 42vh; object-fit: contain; }
.rank-row { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.rank {
  font-size: 34px;
  font-weight: 800;
  line-height: 1;
  color: var(--accent);
  text-shadow: 0 0 18px rgba(77, 208, 255, 0.5);
}
.score-list { margin: 0 0 10px; padding: 0; list-style: none; font-size: 13px; }
.score-list li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 5px 0;
  border-bottom: 1px dashed #ffffff14;
  color: var(--muted);
}
.score-list li b { color: var(--text); font-variant-numeric: tabular-nums; }
.comment {
  margin: 0 0 6px;
  font-size: 13.5px;
  line-height: 1.7;
  background: #101830;
  border-radius: 10px;
  padding: 10px 12px;
}
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.gal-item { background: #101830; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.gal-item img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #06090f; }
.gal-meta { padding: 6px 8px; font-size: 11.5px; color: var(--muted); display: flex; justify-content: space-between; gap: 6px; }
.gal-meta b { color: var(--text); }
.gal-actions { display: flex; border-top: 1px solid var(--line); }
.gal-actions button { flex: 1; background: none; border: none; padding: 7px; font-size: 12px; color: var(--muted); }
.gal-actions button:hover { background: #1a2440; color: var(--text); }
.empty { color: var(--muted); font-size: 13px; padding: 20px 0; text-align: center; }

/* ---------- 狭い画面 ---------- */
@media (max-width: 900px) {
  #body { flex-direction: column; }
  #tools {
    order: 2;
    width: 100%;
    height: auto;
    flex-direction: row;
    border-right: none;
    border-top: 1px solid var(--line);
    padding: 6px 8px;
    gap: 6px;
    overflow-x: auto;
  }
  .tool-list { flex-direction: row; }
  .tool { width: 46px; height: 42px; }
  .zoom { margin-top: 0; margin-left: auto; flex-direction: row; align-items: center; }
  #stage { order: 1; min-height: 40vh; }
  #panel {
    order: 3;
    width: 100%;
    border-left: none;
    border-top: 1px solid var(--line);
    max-height: 38vh;
    padding-bottom: env(safe-area-inset-bottom);
  }
  #panel.collapsed .tab-body { display: none; }
  .tab-toggle { display: block; }
  .swatches { grid-template-columns: repeat(10, 1fr); }
}