:root {
  --accent: #3d5bd9;
  --accent-soft: #e6eafb;
  --text: #23262f;
  --muted: #6b7080;
  --line: #d6d9e3;
  --panel: rgba(255, 255, 255, 0.88);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  display: flex;
  flex-direction: column;
  font: 14px/1.5 system-ui, -apple-system, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: linear-gradient(#fbfbfd 0%, #eef0f5 60%, #dfe2ea 100%);
}

#vrm-juggler {
  flex: 1;
  min-height: 0;
  position: relative;
}

/* ---- 操作パネル ---- */

.panel {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  width: 316px;
  max-height: calc(100% - 24px);
  overflow-y: auto;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 4px 20px rgba(30, 35, 60, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

h1 {
  margin: 0;
  font-size: 16px;
  letter-spacing: 0.02em;
}

h2 {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

section {
  margin-top: 12px;
}

.siteswap-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.siteswap-row label {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.siteswap-row input {
  flex: 1;
  min-width: 0;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: 16px/1.2 ui-monospace, 'SFMono-Regular', Menlo, monospace;
  background: #fff;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  color: var(--text);
  background: #fff;
  cursor: pointer;
  white-space: nowrap;
}

button:hover,
.button:hover {
  border-color: var(--accent);
}

button:focus-visible,
.button:focus-within,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button.primary {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

button.icon {
  width: 30px;
  height: 30px;
  padding: 0;
  border: none;
  background: transparent;
  font-size: 18px;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* 1 つだけ選ぶボタンの並び */
.segmented {
  display: flex;
}

.segmented button {
  flex: 1;
  min-width: 0;
  padding-left: 4px;
  padding-right: 4px;
  border-radius: 0;
  margin-left: -1px;
}

.segmented button:first-child {
  margin-left: 0;
  border-radius: 6px 0 0 6px;
}

.segmented button:last-child {
  border-radius: 0 6px 6px 0;
}

.segmented button[aria-pressed='true'] {
  position: relative;
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
  font-weight: 600;
}

/* パターン一覧 */
.presets {
  display: grid;
  grid-template-columns: 3.2em 1fr;
  gap: 4px 6px;
  align-items: start;
}

.presets .balls {
  padding-top: 3px;
  font-size: 12px;
  color: var(--muted);
}

.presets .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.presets button {
  padding: 2px 8px;
  border-radius: 999px;
  font-family: ui-monospace, 'SFMono-Regular', Menlo, monospace;
  font-size: 13px;
}

.presets button[aria-pressed='true'] {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.description {
  min-height: 2.8em;
  margin: 6px 0 0;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--muted);
}

.description strong {
  color: var(--text);
}

.slider {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.slider span {
  width: 4.5em;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.slider input {
  flex: 1;
  min-width: 0;
  accent-color: var(--accent);
}

.slider output {
  width: 3.5em;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

#record[aria-pressed='true'] {
  border-color: #c92a2a;
  color: #fff;
  background: #c92a2a;
}

.hint {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--muted);
}

section.buttons button,
section.buttons .button {
  padding: 6px 10px;
}

/* 背の低い画面ではキー操作の説明を省く */
@media (max-height: 800px) {
  .hint {
    display: none;
  }
}

/* たたんだ時はサイトスワップの入力だけ */
.panel.collapsed .panel-body {
  display: none;
}

.panel.collapsed #collapse span {
  display: inline-block;
  transform: rotate(-90deg);
}

.toast {
  position: fixed;
  top: 16px;
  left: 50%;
  z-index: 30;
  transform: translate(-50%, -8px);
  padding: 8px 16px;
  border-radius: 999px;
  color: #fff;
  background: rgba(35, 38, 47, 0.9);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* 画面には出さないが、キーボードで選べるファイル選択 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---- スマートフォン: 画面の下に並べる ---- */

@media (max-width: 700px) {
  body {
    height: 100dvh;
  }

  .panel {
    position: static;
    order: 2;
    width: auto;
    max-height: 46dvh;
    border-radius: 14px 14px 0 0;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
    box-shadow: 0 -4px 20px rgba(30, 35, 60, 0.1);
  }

  .panel-header {
    margin-bottom: 4px;
  }

  h1 {
    font-size: 14px;
  }

  button,
  .button {
    padding: 8px 12px;
  }

  .presets button {
    padding: 4px 10px;
  }
}

/* ---- 配信用: ?ui=0 で操作パネルを消す、?bg=transparent で背景を透明に ---- */

.no-ui .panel {
  display: none;
}

.transparent,
.transparent body {
  background: transparent;
}