:root {
  --bg:       #ede4d3;
  --bg-soft:  #f5eee0;
  --bg-warm:  #e0d4be;
  --bg-card:  #faf6ec;
  --ink:      #2a2218;
  --ink2:     #5b4a35;
  --ink3:     #8b7861;
  --accent:   #c8541e;
  --accent-soft: rgba(200,84,30,0.10);
  --accent-hov: #a84418;
  --border:   #c9bba0;
  --border-soft: #d9ccaf;

  --cat-input:    #c8541e;
  --cat-level:    #82624a;
  --cat-saturate: #b89968;
  --cat-bright:   #b88a4d;
  --cat-hue:      #a14242;
  --cat-preview:  #6a7c9a;
  --cat-diagnose: #a14242;
  --cat-output:   #6b8e6f;

  --good: #6b8e6f;
  --bad:  #a14242;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Yu Gothic UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: var(--bg);
  background-image: radial-gradient(circle at 1px 1px, rgba(139,120,97,0.15) 1px, transparent 0);
  background-size: 18px 18px;
  color: var(--ink);
  line-height: 1.65;
  min-height: 100vh;
}

/* ===== ヘッダー ===== */
.app-header {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  padding: 10px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.app-h1 {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.05em;
}
.app-h1 .accent { color: var(--accent); }
.header-link {
  font-family: "Cormorant Garamond", "Yu Mincho", serif;
  font-size: 0.95rem;
  color: var(--ink2);
  letter-spacing: 0.06em;
  text-decoration: none;
}
.header-link .em { color: var(--accent); }
.header-link:hover { color: var(--accent); }

/* ===== ツールバー ===== */
.toolbar {
  background: var(--ink);
  color: var(--bg-soft);
  padding: 7px 14px;
  display: flex;
  gap: 6px;
  align-items: center;
  font-size: 0.78rem;
}
.toolbar button {
  background: rgba(255,255,255,0.08);
  padding: 5px 10px;
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--bg-soft);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.76rem;
}
.toolbar button:hover { background: rgba(255,255,255,0.18); }
.toolbar button:disabled { opacity: 0.4; cursor: not-allowed; }
.toolbar .divider { width: 1px; height: 22px; background: rgba(255,255,255,0.18); }
.toolbar .spacer { flex: 1; }
.toolbar .ver { font-size: 0.74rem; opacity: 0.6; }

/* ===== レイアウト ===== */
.layout {
  display: grid;
  grid-template-columns: 290px 1fr 320px;
  gap: 1px;
  background: var(--border);
  min-height: calc(100vh - 110px);
}
.col {
  background: var(--bg-soft);
  padding: 14px;
  overflow-y: auto;
}

.col-section {
  margin-bottom: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
}
.col-section.collapsed .sect-body { display: none; }
.sect-header {
  padding: 8px 12px;
  display: flex; align-items: center; gap: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--ink2);
  cursor: pointer;
  border-bottom: 1px solid var(--border-soft);
  user-select: none;
}
.col-section.collapsed .sect-header { border-bottom: none; }
.sect-header .badge { display: inline-block; width: 6px; height: 6px; }
.sect-header .step {
  display: inline-block;
  background: var(--accent); color: #fff;
  padding: 1px 6px;
  font-size: 0.65rem;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 700;
}
.sect-header .toggle { margin-left: auto; color: var(--ink3); font-size: 0.78rem; }
.sect-body { padding: 10px 12px; }

/* category colors */
.sect-header.input .badge   { background: var(--cat-input); }
.sect-header.level .badge   { background: var(--cat-level); }
.sect-header.saturate .badge{ background: var(--cat-saturate); }
.sect-header.bright .badge  { background: var(--cat-bright); }
.sect-header.hue .badge     { background: var(--cat-hue); }

/* 入力 */
.dz {
  border: 2px dashed var(--cat-input);
  background: rgba(200,84,30,0.04);
  padding: 16px 8px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--cat-input);
  cursor: pointer;
  transition: all 0.15s;
}
.dz:hover, .dz.drag {
  background: rgba(200,84,30,0.12);
  border-style: solid;
}
.dz .icon { font-size: 1.6rem; display: block; margin-bottom: 4px; }
.dz .hint { display: block; font-size: 0.66rem; color: var(--ink3); margin-top: 2px; }
.btn-sub {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 5px;
  width: 100%;
  font-family: inherit;
  font-size: 0.74rem;
  cursor: pointer;
  margin-top: 6px;
}
.btn-sub:hover { background: var(--ink); color: var(--bg-soft); }

/* common */
.label {
  font-size: 0.66rem;
  color: var(--ink2);
  margin-top: 8px;
  margin-bottom: 3px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.seg {
  display: grid;
  font-size: 0.7rem;
  border: 1px solid var(--border-soft);
}
.seg.col2 { grid-template-columns: 1fr 1fr; }
.seg.col3 { grid-template-columns: repeat(3, 1fr); }
.seg button {
  background: var(--bg-card);
  border: none;
  border-right: 1px solid var(--border-soft);
  padding: 5px 0;
  color: var(--ink2);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.7rem;
}
.seg button:last-child { border-right: none; }
.seg button:hover { background: var(--bg-warm); }
.seg button.on.sat { background: var(--cat-saturate); color: #fff; }
.seg button.on.brt { background: var(--cat-bright); color: #fff; }
.seg button.on.hue { background: var(--cat-hue); color: #fff; }
.seg button.on.lvl { background: var(--cat-level); color: #fff; }

.control {
  background: var(--bg-card); border: 1px solid var(--border-soft);
  padding: 4px 8px; font-size: 0.7rem;
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 3px;
}
.control .v { color: var(--ink3); font-family: ui-monospace, monospace; }
.range-row {
  display: flex; align-items: center; gap: 4px;
  margin-top: 3px;
}
.range-row input[type="range"] { flex: 1; accent-color: var(--accent); }
.range-row .val {
  font-family: ui-monospace, monospace;
  font-size: 0.7rem;
  color: var(--ink3);
  min-width: 42px;
  text-align: center;
}

/* ▲▼ ステッパー (各スライダー値の微調整用) */
.stepper-btn {
  background: var(--bg-warm);
  border: 1px solid var(--border-soft);
  width: 17px;
  height: 17px;
  font-size: 0.55rem;
  color: var(--ink2);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  user-select: none;
}
.stepper-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}
.stepper-btn:active { transform: translateY(1px); }

/* セクション別リセット */
.sect-reset {
  display: block;
  width: 100%;
  margin-top: 10px;
  background: transparent;
  border: 1px dashed var(--border-soft);
  font-size: 0.66rem;
  color: var(--ink3);
  padding: 5px 8px;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 0.05em;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.sect-reset:hover {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
  border-style: solid;
}

/* 15色プリセット */
.hue-presets {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 3px;
  margin-top: 4px;
}
.hue-cell {
  height: 22px;
  border: 1px solid var(--border-soft);
  cursor: pointer;
  position: relative;
  transition: transform 0.1s;
}
.hue-cell:hover { transform: scale(1.05); border-color: var(--accent); }
.hue-cell.on::after {
  content: '✓';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  text-shadow: 0 0 3px rgba(0,0,0,0.7);
}
.hue-cell.no-color {
  background: #ffffff;
  border-color: var(--border);
}
.custom-row {
  display: flex; align-items: center; gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  padding: 4px 6px;
  margin-top: 4px;
  font-size: 0.7rem;
}
.custom-row input[type="color"] {
  width: 28px;
  height: 22px;
  border: 1px solid var(--border-soft);
  padding: 0;
  cursor: pointer;
}
.custom-row .label-mini {
  font-family: ui-monospace, monospace;
  font-size: 0.7rem;
  color: var(--ink2);
}

/* ===== center ===== */
.center {
  background: var(--bg-warm);
  padding: 16px;
  overflow-y: auto;
}
.preview-tabs {
  display: flex; gap: 6px;
  margin-bottom: 10px;
  font-size: 0.74rem;
}
.preview-tabs button {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  padding: 5px 14px;
  color: var(--ink2);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.74rem;
}
.preview-tabs button.on {
  background: var(--ink);
  color: var(--bg-soft);
  font-weight: 600;
}

.canvas-wrap {
  background: #d0d0d0;
  background-image:
    linear-gradient(45deg, #b0b0b0 25%, transparent 25%),
    linear-gradient(-45deg, #b0b0b0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #b0b0b0 75%),
    linear-gradient(-45deg, transparent 75%, #b0b0b0 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
  padding: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--border-soft);
  min-height: 300px;
}
.canvas-wrap .placeholder {
  color: var(--ink3);
  font-style: italic;
  font-size: 0.85rem;
  font-family: "Yu Mincho", serif;
  padding: 40px;
  text-align: center;
}
#mainCanvas {
  max-width: 100%;
  max-height: 420px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.18);
  display: none;
}
#mainCanvas.has-image { display: block; }

.palette-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  padding: 10px 12px;
  margin-top: 10px;
  font-size: 0.72rem;
}
.palette-card .ttl {
  font-size: 0.66rem;
  color: var(--ink3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.palette-bars {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2px;
}
.palette-bars .bar {
  display: flex; flex-direction: column; align-items: center;
  cursor: pointer;
  transition: transform 0.12s;
  position: relative;
}
.palette-bars .bar:hover { transform: translateY(-1px); }
.palette-bars .swatch {
  width: 100%;
  height: 30px;
  border: 1px solid var(--border-soft);
  transition: opacity 0.15s, filter 0.15s;
}
.palette-bars .bar.excluded .swatch {
  opacity: 0.35;
  filter: grayscale(0.5);
}
.palette-bars .bar.excluded::after {
  content: '×';
  position: absolute;
  top: 7px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--bad);
  font-size: 1.4rem;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  pointer-events: none;
  line-height: 1;
}
.palette-bars .bar.excluded .pct { opacity: 0.5; text-decoration: line-through; }
.palette-bars .pct {
  font-size: 0.6rem;
  color: var(--ink2);
  font-family: ui-monospace, monospace;
  margin-top: 2px;
  transition: opacity 0.15s;
}
.palette-hint {
  font-size: 0.62rem;
  color: var(--ink3);
  margin-top: 8px;
  text-align: center;
  letter-spacing: 0.04em;
}

/* === 色相環カード (v1.1.0) === */
.hue-wheel-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  padding: 10px 12px;
  margin-top: 10px;
  font-size: 0.72rem;
}
.hue-wheel-card .ttl {
  font-size: 0.66rem;
  color: var(--ink3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.hue-wheel-wrap {
  display: flex;
  justify-content: center;
  padding: 4px 0;
}
.hue-wheel-wrap svg {
  width: 240px;
  height: 240px;
  max-width: 100%;
}
.hue-wheel-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
  margin-top: 6px;
  font-size: 0.62rem;
  color: var(--ink3);
}
.hue-wheel-legend > div {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.lg-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid var(--border-soft);
}

/* ===== 右ペイン: 診断 + 出力 ===== */
.realtime-badge {
  display: inline-block;
  background: var(--cat-diagnose);
  color: #fff;
  font-size: 0.6rem;
  padding: 2px 8px;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  font-weight: 700;
}
.realtime-badge.live {
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.diagnose-main {
  background: linear-gradient(135deg, #a14242, #2a2218);
  color: #fff;
  padding: 16px 14px;
  text-align: center;
  margin-bottom: 8px;
  border-radius: 4px;
}
.diagnose-main .level-tag {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.7;
}
.diagnose-main .title {
  font-family: "Yu Mincho", serif;
  font-size: 1.0rem;
  font-weight: 700;
  margin-top: 4px;
  line-height: 1.5;
}

.diagnose-secondary {
  background: var(--bg-card);
  border-left: 3px solid var(--cat-diagnose);
  padding: 8px 12px;
  margin-bottom: 8px;
  font-size: 0.74rem;
}
.diagnose-secondary .level-tag {
  font-size: 0.58rem;
  color: var(--cat-diagnose);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
}
.diagnose-secondary .body {
  margin-top: 3px;
  color: var(--ink);
}
.diagnose-secondary.scene {
  border-left-color: var(--cat-saturate);
}
.diagnose-secondary.scene .level-tag { color: var(--cat-saturate); }
.diagnose-secondary.scene .body { font-style: italic; }

.sub-evals {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  padding: 8px 10px;
  margin-bottom: 8px;
  font-size: 0.7rem;
}
.sub-evals .ttl {
  font-size: 0.58rem;
  color: var(--ink3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.sub-evals .item {
  padding: 2px 0;
  display: flex; gap: 4px;
  border-bottom: 1px dashed var(--border-soft);
}
.sub-evals .item:last-child { border-bottom: none; }
.sub-evals .item::before {
  content: '・';
  color: var(--cat-diagnose);
  font-weight: 700;
}

.improvement {
  margin-bottom: 10px;
}
.improvement-item {
  background: rgba(255, 200, 100, 0.18);
  border: 1px solid var(--cat-bright);
  padding: 8px 12px;
  margin-bottom: 6px;
  font-size: 0.72rem;
  position: relative;
}
.improvement-item.pri-low { background: rgba(255, 200, 100, 0.10); }
.improvement-item .tag {
  display: inline-block;
  background: var(--cat-bright);
  color: #fff;
  font-size: 0.58rem;
  padding: 1px 6px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-right: 6px;
}
.improvement-item .pri-badge {
  display: inline-block;
  font-size: 0.58rem;
  padding: 1px 5px;
  font-weight: 700;
  margin-right: 6px;
  border: 1px solid var(--cat-bright);
  color: var(--cat-bright);
}
.improvement-item .pri-badge.pri-high { background: var(--cat-bright); color: #fff; }
.improvement-item button {
  display: inline-block;
  background: transparent;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 700;
  margin-top: 4px;
  padding: 0;
  font-family: inherit;
  text-decoration: underline;
}

/* 出力 */
.output-section {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  padding: 10px 12px;
  margin-top: 6px;
  font-size: 0.72rem;
}
.output-section .ttl {
  font-size: 0.62rem;
  color: var(--ink2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 6px;
}

.final-btn {
  display: block; width: 100%;
  background: var(--ink); color: var(--bg-soft);
  padding: 11px; text-align: center;
  font-weight: 700;
  font-size: 0.88rem;
  margin-top: 10px;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.final-btn:hover { background: var(--accent); }
.final-btn:disabled { background: var(--border); cursor: not-allowed; color: var(--ink3); }
.secondary-btn {
  display: block; width: 100%;
  background: transparent; color: var(--ink);
  border: 1px solid var(--ink);
  padding: 7px; text-align: center;
  font-size: 0.74rem;
  margin-top: 4px;
  cursor: pointer;
  font-family: inherit;
}
.secondary-btn:hover { background: var(--ink); color: var(--bg-soft); }

/* Toast */
.toast-container {
  position: fixed; bottom: 20px; right: 20px;
  display: flex; flex-direction: column; gap: 8px;
  z-index: 1000;
}
.toast {
  background: var(--ink); color: var(--bg-soft);
  padding: 10px 18px;
  font-size: 0.85rem;
  animation: toast-in 0.3s;
}
.toast.success { background: var(--good); }
.toast.error { background: var(--bad); }
@keyframes toast-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr; }
}

/* === フッター === */
.app-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 22px 24px;
  text-align: center;
  color: var(--ink3);
  font-size: 0.82rem;
  margin-top: 30px;
}
.app-footer .links {
  margin-bottom: 8px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.app-footer .links a {
  color: var(--ink2);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.15s ease;
}
.app-footer .links a:hover { color: var(--accent); }
.app-footer .copyright { font-size: 0.78rem; }