* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
  --ink: #2b251d;
  --muted: #736651;
  --paper: #fffaf0;
  --paper-deep: #f7e7c6;
  --panel: #fffdfa;
  --shelf: #fff4d9;
  --line: #dfc895;
  --green: #4f8f63;
  --yellow: #f2c75c;
  --red: #c65b4a;
  --radar: #143236;
  --accent: var(--green);
  --shadow: 0 14px 34px rgba(101, 75, 32, 0.12);
  --danger: var(--green);
  --distance: 1;
  --approach-y: -220px;
}

html {
  min-width: 0;
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body {
  background:
    linear-gradient(180deg, rgba(255, 244, 217, 0.72), rgba(255, 250, 240, 0.96) 34%),
    var(--paper);
  margin: 0;
}

a {
  color: #3f7d57;
}

button,
textarea,
input {
  font: inherit;
}

.site-header,
.site-footer,
.app-shell {
  margin: 0 auto;
  max-width: 1180px;
  min-width: 0;
  width: min(100%, 1180px);
}

.site-header,
.site-footer {
  align-items: center;
  background: rgba(255, 250, 240, 0.86);
  border-bottom: 1px solid rgba(115, 102, 81, 0.16);
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding: 12px 18px;
}

.site-footer {
  border-bottom: 0;
  border-top: 1px solid rgba(115, 102, 81, 0.16);
}

.site-header p {
  color: var(--muted);
  margin: 0;
}

.brand {
  color: var(--ink);
  font-weight: 850;
  text-decoration: none;
}

.app-shell {
  display: grid;
  gap: 10px;
  padding: 10px 18px 30px;
}

.mode-toolbar,
.radar-panel,
.input-panel,
.metrics-panel,
.result-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 1px 0 rgba(101, 75, 32, 0.08);
  min-width: 0;
  padding: 16px;
}

.control-panel {
  align-items: center;
  background: rgba(255, 253, 250, 0.78);
  border: 1px dashed rgba(223, 200, 149, 0.78);
  border-radius: 8px;
  box-shadow: none;
  color: var(--ink);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.84rem;
  gap: 6px 10px;
  padding: 6px 8px;
}

.mode-toolbar {
  align-items: center;
  background: #fffdfa;
  display: grid;
  gap: 8px;
  grid-template-columns: minmax(280px, 1fr) auto;
  padding: 10px 12px;
}

.mode-titlebar {
  align-content: center;
  background: linear-gradient(160deg, #fffdfa, #fff4d9);
  border: 1px solid rgba(223, 200, 149, 0.82);
  border-radius: 8px;
  display: grid;
  min-height: 70px;
  min-width: 0;
  padding: 7px 12px;
}

.eyebrow {
  color: var(--green);
  font-size: 0.64rem;
  font-weight: 850;
  letter-spacing: 0;
  margin: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(1.38rem, 2vw, 1.82rem);
  line-height: 1.05;
  margin: 1px 0 2px;
}

.lead {
  color: var(--muted);
  font-size: clamp(0.9rem, 1vw, 1rem);
  font-weight: 800;
  margin: 0;
}

.summary {
  color: var(--muted);
  display: none;
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 0;
  max-width: 780px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.action-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

fieldset {
  border: 1px dashed var(--line);
  border-radius: 7px;
  display: flex;
  flex-wrap: wrap;
  gap: 3px 8px;
  margin: 0;
  padding: 3px 7px;
}

legend,
.input-panel label,
.share-block {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.control-panel legend {
  color: var(--muted);
}

.toggle-line {
  align-items: center;
  display: inline-flex;
  gap: 6px;
  font-weight: 700;
  min-width: 0;
}

button {
  background: #fffdfa;
  border: 1px solid var(--accent);
  border-radius: 7px;
  color: #3f7d57;
  cursor: pointer;
  font-weight: 800;
  min-height: 32px;
  padding: 5px 10px;
}

button:hover {
  background: #fff4d9;
}

.play-layout {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr;
}

.radar-panel {
  --danger: var(--green);
  background:
    radial-gradient(circle at 50% 38%, rgba(79, 143, 99, 0.16), transparent 48%),
    #10282c;
  border-color: rgba(43, 37, 29, 0.32);
  color: #ffffff;
  display: grid;
  gap: 8px;
  padding: 12px;
}

.radar-panel[data-danger="mid"] {
  --danger: var(--yellow);
}

.radar-panel[data-danger="near"] {
  --danger: var(--red);
}

.radar-panel[data-complete="true"] {
  --danger: var(--green);
}

.radar-panel.is-impact {
  animation: radar-impact-shake 340ms ease-out 1;
}

.radar-panel.is-impact .radar-stage {
  box-shadow:
    inset 0 0 0 999px rgba(198, 91, 74, 0.1),
    0 0 26px rgba(198, 91, 74, 0.22);
}

.radar-panel[data-intensity="off"].is-impact {
  animation: none;
}

.radar-panel[data-intensity="off"].is-impact .radar-stage {
  box-shadow:
    inset 0 0 0 999px rgba(198, 91, 74, 0.055),
    0 0 14px rgba(198, 91, 74, 0.12);
}

.radar-panel.is-intercepted .radar-stage {
  box-shadow:
    inset 0 0 0 999px rgba(79, 143, 99, 0.08),
    0 0 28px rgba(67, 184, 157, 0.24);
}

.radar-panel.is-intercepted .ring-c,
.radar-panel.is-intercepted .center-core {
  animation: radar-intercept-pulse 420ms ease-out 1;
}

.radar-panel.is-intercepted .target-text {
  animation: radar-target-clear 420ms ease-out 1;
}

.radar-panel[data-intensity="off"].is-intercepted .radar-stage {
  box-shadow:
    inset 0 0 0 999px rgba(79, 143, 99, 0.045),
    0 0 14px rgba(67, 184, 157, 0.12);
}

.radar-panel[data-intensity="off"].is-intercepted .ring-c,
.radar-panel[data-intensity="off"].is-intercepted .center-core,
.radar-panel[data-intensity="off"].is-intercepted .target-text {
  animation: none;
}

@keyframes radar-impact-shake {
  0% { transform: translateX(0); }
  22% { transform: translateX(-3px); }
  45% { transform: translateX(3px); }
  68% { transform: translateX(-1px); }
  100% { transform: translateX(0); }
}

@keyframes radar-intercept-pulse {
  0% { opacity: 0.72; transform: translate(-50%, -50%) scale(1); }
  48% { opacity: 1; transform: translate(-50%, -50%) scale(1.12); }
  100% { opacity: 0.72; transform: translate(-50%, -50%) scale(1); }
}

@keyframes radar-target-clear {
  0% { opacity: 1; transform: scale(1); }
  55% { opacity: 0.72; transform: scale(0.96); }
  100% { opacity: 1; transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .radar-panel.is-impact,
  .radar-panel.is-intercepted .ring-c,
  .radar-panel.is-intercepted .center-core,
  .radar-panel.is-intercepted .target-text,
  .result-panel.is-highlighted {
    animation: none;
  }
}

.status-strip {
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-left: 6px solid var(--danger);
  border-radius: 8px;
  background: rgba(255, 253, 250, 0.06);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  min-height: 50px;
  padding: 6px 12px;
}

#status-code {
  color: var(--danger);
  font-size: 0.82rem;
  font-weight: 900;
  white-space: nowrap;
}

#status-message {
  font-size: 1rem;
  font-weight: 850;
  white-space: nowrap;
}

#status-message::before,
#status-help::before {
  color: rgba(255, 250, 240, 0.46);
  content: "·";
  margin-right: 8px;
}

#status-help {
  color: rgba(255, 255, 255, 0.72);
  min-width: 0;
}

.radar-stage {
  aspect-ratio: auto;
  background:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,0.08), transparent 62%),
    linear-gradient(180deg, rgba(11, 32, 37, 0.92), rgba(15, 42, 46, 0.96));
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 14px;
  display: grid;
  height: clamp(350px, 49vh, 560px);
  margin: 0 auto;
  max-width: 100%;
  overflow: hidden;
  place-items: center;
  position: relative;
  width: 100%;
}

.radar-ring {
  aspect-ratio: 1;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 50%;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
}

.ring-a {
  width: min(68vw, 260px);
}

.ring-b {
  width: min(46vw, 178px);
}

.ring-c {
  width: min(24vw, 92px);
}

.radar-sweep {
  background: conic-gradient(from 15deg, rgba(35,163,107,0.22), transparent 24deg);
  border-radius: 50%;
  height: min(68vw, 260px);
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%) rotate(calc(var(--distance) * -35deg));
  width: min(68vw, 260px);
}

.target-track {
  display: grid;
  left: 50%;
  max-width: 76%;
  place-items: center;
  position: absolute;
  top: 50%;
  transform: translate(-50%, calc(-50% + var(--approach-y)));
  transition: transform 120ms linear;
  will-change: transform;
}

.target-text {
  background: rgba(16, 40, 44, 0.88);
  border: 1px solid var(--danger);
  border-radius: 8px;
  box-shadow: 0 0 22px color-mix(in srgb, var(--danger), transparent 70%);
  color: #fff;
  font-size: clamp(1.05rem, 2.2vw, 1.55rem);
  font-weight: 850;
  line-height: 1.45;
  margin: 0;
  padding: 10px 12px;
  text-align: center;
}

.radar-panel[data-waiting="true"] .target-track {
  max-width: min(76%, 420px);
  transform: translate(-50%, -50%);
}

.radar-panel[data-waiting="true"] .target-text {
  background: rgba(255, 253, 250, 0.12);
  border-color: rgba(97, 214, 164, 0.58);
  box-shadow: 0 0 24px rgba(97, 214, 164, 0.14);
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1rem, 2vw, 1.35rem);
  letter-spacing: 0.02em;
}

.radar-guide {
  background: rgba(255, 253, 250, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  bottom: 14px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.82rem;
  font-weight: 800;
  left: 50%;
  letter-spacing: 0;
  margin: 0;
  max-width: calc(100% - 28px);
  padding: 6px 12px;
  position: absolute;
  text-align: center;
  transform: translateX(-50%);
}

.radar-panel[data-complete="true"] .radar-stage {
  background:
    radial-gradient(circle at 50% 50%, rgba(79, 143, 99, 0.2), transparent 58%),
    linear-gradient(180deg, rgba(11, 32, 37, 0.92), rgba(15, 42, 46, 0.96));
}

.radar-panel[data-complete="true"] .radar-ring {
  border-color: rgba(79, 143, 99, 0.54);
  box-shadow: 0 0 24px rgba(79, 143, 99, 0.16);
}

.radar-panel[data-complete="true"] .radar-sweep {
  opacity: 0.16;
}

.radar-panel[data-complete="true"] .target-track {
  max-width: 86%;
  transform: translate(-50%, -50%);
}

.radar-panel[data-complete="true"] .target-text {
  background: rgba(255, 253, 250, 0.1);
  border-color: rgba(79, 143, 99, 0.78);
  box-shadow: 0 0 28px rgba(79, 143, 99, 0.24);
  letter-spacing: 0.02em;
}

.radar-panel[data-complete="true"] .target-text::after {
  color: rgba(255, 255, 255, 0.72);
  content: "結果は下に表示されています ↓";
  display: block;
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0;
  margin-top: 4px;
}

.radar-panel[data-complete="true"] .center-core {
  border-color: rgba(79, 143, 99, 0.7);
  color: rgba(255, 255, 255, 0.82);
  box-shadow: 0 0 20px rgba(79, 143, 99, 0.2);
}

.center-core {
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  font-size: 0.78rem;
  font-weight: 900;
  height: 84px;
  justify-content: center;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 84px;
}

.distance-meter {
  background: rgba(255,250,240,0.16);
  border-radius: 999px;
  height: 12px;
  overflow: hidden;
}

.distance-meter span {
  background: var(--danger);
  display: block;
  height: 100%;
  width: calc(var(--distance) * 100%);
}

.radar-panel[data-intensity="off"] .radar-stage {
  aspect-ratio: auto;
  border-radius: 10px;
  min-height: 180px;
}

.radar-panel[data-intensity="off"] .radar-ring,
.radar-panel[data-intensity="off"] .radar-sweep,
.radar-panel[data-intensity="off"] .center-core {
  display: none;
}

.radar-panel[data-intensity="off"] .target-track {
  position: static;
  transform: none;
}

.radar-panel[data-intensity="low"] .radar-sweep {
  opacity: 0.35;
}

.radar-panel[data-intensity="high"] .target-text {
  box-shadow: 0 0 28px color-mix(in srgb, var(--danger), transparent 56%);
}

.input-panel {
  display: grid;
  gap: 6px;
  padding-top: 12px;
}

.start-guide,
.result-guide {
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.start-guide {
  background: #fff7e4;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: #514633;
  font-size: 0.84rem;
  line-height: 1.35;
  padding: 5px 9px;
}

.start-guide strong {
  color: var(--ink);
}

#typing-input {
  background: #fffdfa;
  border: 2px solid rgba(79, 143, 99, 0.58);
  border-radius: 8px;
  color: var(--ink);
  line-height: 1.55;
  min-height: 78px;
  padding: 9px 12px;
  resize: vertical;
  width: 100%;
}

#typing-input:focus {
  border-color: var(--green);
  outline: 3px solid rgba(79, 143, 99, 0.18);
}

#match-note {
  color: var(--muted);
  margin: 0;
}

.metrics-panel dl,
.result-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0;
}

.metrics-panel div,
.result-grid div {
  background: #fff7e4;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 12px;
}

dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

dd {
  font-size: 1.18rem;
  font-weight: 900;
  margin: 0;
}

.metrics-panel p,
.result-grid p {
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.45;
  margin: 6px 0 0;
}

.result-panel {
  display: grid;
  gap: 14px;
}

.result-panel.is-highlighted {
  animation: result-panel-highlight 1100ms ease-out 1;
}

.result-panel[hidden] {
  display: none;
}

.share-block {
  display: grid;
  gap: 4px;
}

.share-block span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

#share-text {
  background: #fffdfa;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  padding: 12px;
  width: 100%;
}

.copy-note {
  color: var(--muted);
  margin: 0;
}

.site-footer {
  flex-wrap: wrap;
}

@keyframes result-panel-highlight {
  0% {
    box-shadow: 0 0 0 0 rgba(79, 143, 99, 0);
  }

  24% {
    box-shadow: 0 0 0 5px rgba(79, 143, 99, 0.18), 0 0 24px rgba(79, 143, 99, 0.16);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(79, 143, 99, 0);
  }
}

@media (max-width: 860px) {
  .mode-toolbar {
    grid-template-columns: 1fr;
  }

  .metrics-panel dl,
  .result-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .site-header,
  .site-footer,
  .app-shell {
    width: 100%;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 14px;
  }

  .app-shell {
    gap: 8px;
    padding: 8px 12px 28px;
  }

  .mode-toolbar {
    gap: 6px;
    padding: 8px;
  }

  .mode-titlebar {
    min-height: 66px;
    padding: 8px 10px;
  }

  h1 {
    font-size: 1.42rem;
  }

  .lead {
    font-size: 0.88rem;
  }

  .control-panel {
    font-size: 0.8rem;
    gap: 4px 5px;
    padding: 5px 6px;
  }

  fieldset {
    gap: 3px 7px;
    padding: 3px 7px;
  }

  button {
    min-height: 30px;
    padding: 4px 9px;
  }

  .radar-panel,
  .input-panel,
  .metrics-panel,
  .result-panel {
    padding: 14px;
  }

  .radar-stage {
    height: clamp(280px, 34vh, 320px);
    max-width: 320px;
  }

  .status-strip {
    align-items: flex-start;
    gap: 2px 7px;
    min-height: 58px;
    padding: 7px 10px;
  }

  #status-message,
  #status-help {
    white-space: normal;
  }

  .target-track {
    max-width: 86%;
  }

  #typing-input {
    min-height: 76px;
  }

  .metrics-panel dl,
  .result-grid {
    grid-template-columns: 1fr;
  }
}