:root {
  --bg-app: #e8eef6;
  --bg-panel: #ffffff;
  --bg-panel-soft: #f4f8fc;
  --text-main: #183552;
  --text-sub: #4b6580;
  --accent-blue: #2364c6;
  --accent-blue-deep: #174a96;
  --accent-red: #d9483b;
  --accent-yellow: #f0c443;
  --shadow-soft: 0 10px 26px rgba(20, 50, 90, 0.12);

  --boat-1-bg: #ffffff;
  --boat-1-text: #111111;
  --boat-1-border: #cfd8e3;

  --boat-2-bg: #181818;
  --boat-2-text: #ffffff;
  --boat-2-border: #181818;

  --boat-3-bg: #d83e3e;
  --boat-3-text: #ffffff;
  --boat-3-border: #d83e3e;

  --boat-4-bg: #2d6fda;
  --boat-4-text: #ffffff;
  --boat-4-border: #2d6fda;

  --boat-5-bg: #f1d13f;
  --boat-5-text: #222222;
  --boat-5-border: #e0c02f;

  --boat-6-bg: #1f9448;
  --boat-6-text: #ffffff;
  --boat-6-border: #1f9448;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  background: linear-gradient(180deg, #edf3fa 0%, #dfe9f5 100%);
  color: var(--text-main);
}

button,
select,
textarea,
input {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(360px, 430px) minmax(480px, 1fr);
  gap: 24px;
  min-height: 100vh;
  padding: 24px;
}

.panel {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(158, 182, 210, 0.9);
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(4px);
}

.control-panel {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 4px;
}

.app-title {
  margin: 0;
  font-size: 2rem;
  line-height: 1.1;
  letter-spacing: 0.03em;
  color: var(--accent-blue-deep);
}

.app-subtitle {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-sub);
}

.section-card {
  background: var(--bg-panel-soft);
  border: 1px solid #d3e0ee;
  border-radius: 20px;
  padding: 16px;
}

.section-title {
  margin: 0 0 10px;
  font-size: 1rem;
  color: var(--accent-blue-deep);
  font-weight: 800;
  letter-spacing: 0.02em;
}

.mode-select,
.free-textarea {
  width: 100%;
  border: 1px solid #bfd0e4;
  background: #fff;
  color: var(--text-main);
  border-radius: 12px;
  padding: 12px 14px;
  outline: none;
}

.mode-select:focus,
.free-textarea:focus,
input[type="range"]:focus {
  box-shadow: 0 0 0 4px rgba(35, 100, 198, 0.12);
}

.config-note,
.description-text,
.inline-status,
.form-message,
.candidate-count,
.history-empty {
  margin: 0;
  color: var(--text-sub);
  line-height: 1.55;
}

.mode-config[hidden],
.candidate-list-wrap[hidden],
.history-list-wrap[hidden] {
  display: none;
}

.boat-toggle-group {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
  margin-bottom: 10px;
}

.boat-toggle {
  border: 1px solid #bdd0e6;
  border-radius: 14px;
  background: #fff;
  color: var(--accent-blue-deep);
  font-weight: 800;
  font-size: 1.2rem;
  padding: 12px 0;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    background 0.18s ease,
    color 0.18s ease;
}

.boat-toggle:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: var(--accent-blue);
}

.boat-toggle.is-selected {
  background: linear-gradient(180deg, #2d76de 0%, #1d59b3 100%);
  border-color: #1c56ab;
  color: #fff;
}

.boat-toggle:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.free-textarea {
  min-height: 180px;
  resize: vertical;
  line-height: 1.5;
}

.setting-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  align-items: center;
  gap: 14px;
}

.setting-row + .setting-row {
  margin-top: 14px;
}

.setting-label {
  font-weight: 700;
  color: var(--accent-blue-deep);
}

.setting-control {
  display: flex;
  align-items: center;
  gap: 12px;
}

.setting-value {
  min-width: 2.8em;
  font-weight: 800;
  color: var(--accent-blue-deep);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent-blue);
  cursor: pointer;
}

.toggle-button,
.sub-button,
.action-button {
  border: none;
  border-radius: 14px;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    opacity 0.18s ease,
    filter 0.18s ease;
}

.toggle-button:hover,
.sub-button:hover,
.action-button:hover {
  transform: translateY(-1px);
}

.toggle-button {
  min-width: 84px;
  padding: 10px 14px;
  background: #dce8f8;
  color: var(--accent-blue-deep);
  font-weight: 800;
}

.toggle-button.is-on {
  background: linear-gradient(180deg, #f4d35e 0%, #eebc2c 100%);
  color: #4d3600;
}

.sub-button {
  margin-top: 10px;
  background: #eef4fb;
  color: var(--accent-blue-deep);
  padding: 10px 14px;
  font-weight: 700;
}

.candidate-list-wrap,
.history-list-wrap {
  margin-top: 12px;
  max-height: 180px;
  overflow: auto;
  padding-right: 4px;
}

.candidate-list,
.history-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.candidate-item,
.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid #d4e0ef;
}

.candidate-item-label {
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--text-main);
}

.candidate-item-meta,
.history-item-meta {
  font-size: 0.9rem;
  color: var(--text-sub);
  white-space: nowrap;
}

.history-item-label {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}

.history-mode-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.22rem 0.5rem;
  border-radius: 999px;
  background: #edf4fd;
  border: 1px solid #c6d9f1;
  color: var(--accent-blue-deep);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.action-buttons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.action-button {
  padding: 13px 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.action-button.primary {
  background: linear-gradient(180deg, #d94c40 0%, #c8352a 100%);
  color: #fff;
}

.action-button.tertiary {
  background: #e8eef7;
  color: var(--accent-blue-deep);
}

.action-button:disabled,
.toggle-button:disabled,
.sub-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.form-message {
  min-height: 1.6em;
  margin-top: 10px;
  font-size: 0.94rem;
  font-weight: 700;
}

.form-message.is-error {
  color: #b52323;
}

.form-message.is-info {
  color: var(--accent-blue-deep);
}

.stage-panel {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at top, rgba(74, 134, 231, 0.14), transparent 40%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(245, 249, 253, 0.98) 100%);
}

.stage-panel::before,
.stage-panel::after {
  content: "";
  position: absolute;
  inset: auto auto 0 -8%;
  width: 36%;
  height: 32%;
  background: radial-gradient(circle, rgba(35, 100, 198, 0.08), transparent 65%);
  pointer-events: none;
}

.stage-panel::after {
  inset: 0 -8% auto auto;
}

.stage-inner {
  position: relative;
  width: min(100%, 860px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 10px 10px 0;
}

.pointer-wrap {
  position: relative;
  z-index: 4;
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  width: 100%;
  margin-bottom: -14px;
}

.wheel-pointer {
  width: 0;
  height: 0;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-top: 28px solid var(--accent-red);
  filter: drop-shadow(0 6px 10px rgba(145, 33, 22, 0.28));
}

.wheel-wrap {
  width: min(100%, 640px);
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.roulette-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 16px 24px rgba(42, 74, 115, 0.16));
}

.wheel-group {
  transform-origin: 500px 500px;
}

.wheel-segment-path {
  stroke: rgba(34, 72, 117, 0.18);
  stroke-width: 2;
}

.wheel-outer-ring {
  fill: none;
  stroke: #2c64b7;
  stroke-width: 16;
}

.wheel-inner-ring {
  fill: none;
  stroke: rgba(255, 255, 255, 0.8);
  stroke-width: 6;
}

.wheel-label {
  font-weight: 900;
  font-size: 38px;
  letter-spacing: 0.04em;
  fill: #162d4b;
  text-anchor: middle;
  dominant-baseline: middle;
  paint-order: stroke;
  stroke: rgba(255, 255, 255, 0.45);
  stroke-width: 4;
  stroke-linejoin: round;
}

.wheel-center-cap {
  fill: #fffdfd;
  stroke: #ef4d47;
  stroke-width: 3;
}

.center-icon-wrap {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 104px;
  height: 104px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  pointer-events: none;
  overflow: hidden;
}

.center-icon {
  width: 102px;
  height: 102px;
  object-fit: contain;
  opacity: 0.98;
  display: block;
  filter: drop-shadow(0 3px 6px rgba(15, 42, 78, 0.12));
}

.result-panel {
  min-width: min(92%, 420px);
  background: linear-gradient(180deg, #ffffff 0%, #eef5fc 100%);
  border: 1px solid #c6d7ea;
  border-radius: 20px;
  padding: 14px 18px;
  text-align: center;
  box-shadow: 0 12px 26px rgba(27, 67, 112, 0.12);
  pointer-events: none;
  user-select: none;
}

.result-label {
  margin: 0 0 6px;
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--text-sub);
  letter-spacing: 0.04em;
}

.result-text {
  margin: 0;
  min-height: 3.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  line-height: 1.1;
  font-weight: 900;
  color: var(--accent-blue-deep);
  letter-spacing: 0.04em;
}

.result-placeholder {
  font-size: clamp(1.9rem, 4vw, 3rem);
}

.result-box-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.boat-chip {
  width: clamp(2.4rem, 5vw, 3.2rem);
  height: clamp(2.4rem, 5vw, 3.2rem);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 900;
  border: 2px solid transparent;
  line-height: 1;
}

.boat-chip.boat-1 { background: var(--boat-1-bg); color: var(--boat-1-text); border-color: var(--boat-1-border); }
.boat-chip.boat-2 { background: var(--boat-2-bg); color: var(--boat-2-text); border-color: var(--boat-2-border); }
.boat-chip.boat-3 { background: var(--boat-3-bg); color: var(--boat-3-text); border-color: var(--boat-3-border); }
.boat-chip.boat-4 { background: var(--boat-4-bg); color: var(--boat-4-text); border-color: var(--boat-4-border); }
.boat-chip.boat-5 { background: var(--boat-5-bg); color: var(--boat-5-text); border-color: var(--boat-5-border); }
.boat-chip.boat-6 { background: var(--boat-6-bg); color: var(--boat-6-text); border-color: var(--boat-6-border); }

.result-box-label {
  font-size: clamp(1.25rem, 2.6vw, 1.8rem);
  color: var(--accent-blue-deep);
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-left: 4px;
}

.result-free-text {
  font-size: clamp(1.9rem, 4vw, 3rem);
  color: var(--accent-blue-deep);
  font-weight: 900;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .stage-inner {
    width: min(100%, 760px);
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 14px;
    gap: 16px;
  }

  .control-panel,
  .stage-panel {
    padding: 16px;
  }

  .boat-toggle-group {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .action-buttons {
    grid-template-columns: 1fr;
  }

  .setting-row {
    grid-template-columns: 1fr;
  }
}