:root {
  color-scheme: light dark;
  --bg: #f7f6f3;
  --surface: #ffffff;
  --text: #1c1b19;
  --text-muted: #6b6660;
  --border: #ddd8d0;
  --accent: #a15c2f;
  --accent-text: #ffffff;
  --error-bg: #fbe9e7;
  --error-text: #8c2f21;
  --error-border: #e3a99b;
  --ok: #3d7a4d;
  --log-bg: #1c1b19;
  --log-text: #e7e3da;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16140f;
    --surface: #221f19;
    --text: #f0ece3;
    --text-muted: #a89f92;
    --border: #3a352c;
    --accent: #d38a52;
    --accent-text: #1c1b19;
    --error-bg: #3a1f1a;
    --error-text: #f2b6a8;
    --error-border: #6b3428;
    --ok: #7fbf8f;
    --log-bg: #0d0c0a;
    --log-text: #d9d4c8;
  }
}

* {
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
  line-height: 1.5;
}

a {
  color: var(--accent);
}

.page-header {
  padding: 2rem 0 1rem;
}

.page-header h1 {
  margin: 0 0 0.35rem;
  font-size: 1.6rem;
}

.tagline {
  color: var(--text-muted);
  margin: 0;
}

.notice {
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  margin: 1rem 0;
  border: 1px solid;
}

.notice-error {
  background: var(--error-bg);
  color: var(--error-text);
  border-color: var(--error-border);
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem 1.5rem;
  margin: 1rem 0;
}

.step h2 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.05rem;
  margin: 0 0 0.9rem;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.checkmark {
  color: var(--ok);
}

.hint {
  color: var(--text-muted);
  margin-top: 0;
}

.field-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 1rem 0 0.35rem;
}

.board-select {
  display: block;
  width: 100%;
  font: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 2.2rem 0.6rem 0.8rem;
  cursor: pointer;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position: calc(100% - 1.1rem) center, calc(100% - 0.75rem) center;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.board-select:hover,
.board-select:focus {
  border-color: var(--accent);
}

.actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

button {
  font: inherit;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.1rem;
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.chip-info {
  margin-top: 0.9rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
  color: var(--ok);
}

.progress-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1rem;
}

.progress-row .progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.progress-row progress {
  width: 100%;
  height: 0.6rem;
}

#log {
  background: var(--log-bg);
  color: var(--log-text);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  max-height: 280px;
  overflow-y: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

.log-error { color: #f28b7d; }
.log-warn { color: #e8c168; }
.log-info { color: #8fd19e; }

.page-footer {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
  margin-top: 2rem;
}