:root {
  --bg: #0a0e12;
  --panel: #121a22;
  --border: #1e2d3d;
  --text: #c8d6e5;
  --muted: #6b7f93;
  --accent: #3ddc84;
  --accent-dim: #1a6b40;
  --amber: #f0a030;
  --red: #e05050;
  --blue: #4aa3ff;
  --font: "Segoe UI", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
  --mono: "Cascadia Code", "Consolas", "SF Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}

body {
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, #142033 0%, transparent 60%),
    linear-gradient(180deg, #0a0e12 0%, #0d1218 100%);
}

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.header h1 {
  margin: 0.5rem 0 0.25rem;
  font-size: 1.55rem;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.led-row {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  background: #0d1218;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.led {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #1a2530;
  box-shadow: inset 0 1px 2px #000;
  transition: background 0.1s, box-shadow 0.1s;
}

.led.on {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent), 0 0 2px var(--accent);
}

.led.on.amber {
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
}

.led.on.red {
  background: var(--red);
  box-shadow: 0 0 8px var(--red);
}

.led.on.blue {
  background: var(--blue);
  box-shadow: 0 0 8px var(--blue);
}

.led-label {
  margin-right: 0.45rem;
}

.display {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem 0.9rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.status-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.6rem;
  font-family: var(--mono);
  font-size: 0.8rem;
}

#status-text {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.06em;
}

#phase-text {
  color: var(--muted);
  max-width: 65%;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#scope {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  background: #06090c;
  border: 1px solid #15202a;
}

.progress-wrap {
  margin-top: 0.75rem;
  height: 4px;
  background: #1a2530;
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  border-radius: 2px;
  transition: width 0.08s linear;
}

.time-row {
  display: flex;
  justify-content: space-between;
  margin-top: 0.4rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: #1a2430;
  color: var(--text);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.65rem 1.15rem;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
}

.btn:hover:not(:disabled) {
  background: #243040;
  border-color: #2a3d52;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn.primary {
  background: linear-gradient(180deg, #2a8f55 0%, #1f6b40 100%);
  border-color: #3aa866;
  color: #fff;
}

.btn.primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #34a364 0%, #267a4a 100%);
}

.btn-icon {
  font-size: 0.75rem;
  opacity: 0.9;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.toggle input {
  accent-color: var(--accent);
}

.field {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.field input[type="text"] {
  width: 7.5rem;
  background: #0d1218;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 0.4rem 0.55rem;
}

.field input[type="range"] {
  width: 100px;
  accent-color: var(--accent);
}

.phases {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
}

.phase-item {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.45rem 0.7rem;
  background: var(--panel);
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--muted);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.phase-item .t {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: #4a5d70;
}

.phase-item .name {
  color: var(--muted);
}

.phase-item .tag {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: #3a4d60;
  letter-spacing: 0.04em;
}

.phase-item.active {
  border-color: var(--accent-dim);
  background: #12201a;
  color: var(--text);
}

.phase-item.active .t,
.phase-item.active .name,
.phase-item.active .tag {
  color: var(--accent);
}

.phase-item.done .name {
  color: #5a7a6a;
}

.footer {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.footer p {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--muted);
}

@media (max-width: 520px) {
  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .phase-item {
    grid-template-columns: 3.8rem 1fr;
  }

  .phase-item .tag {
    display: none;
  }
}