:root {
  --border: #c9d1d9;
  --border-strong: #8b949e;
  --bg: #f6f8fa;
  --panel-bg: #ffffff;
  --text: #1f2328;
  --muted: #59636e;
  --accent: #0969da;
  --accent-dark: #0550ae;
  --error-bg: #ffebe9;
  --error-border: #ff818266;
  --error-text: #82071e;
  --warn-bg: #fff8c5;
  --warn-border: #d4a72c66;
  --warn-text: #633c01;
  --info-bg: #ddf4ff;
  --info-border: #54aeff66;
  --info-text: #0550ae;
  --ok-bg: #dafbe1;
  --ok-border: #4ac26b66;
  --ok-text: #116329;
  --self-bg: #ddf4ff;
  --self-border: #54aeff;
  --other-bg: #eef1f4;
  --other-border: #8b949e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", Meiryo, "Noto Sans JP", sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 8px;
}

h1 { font-size: 22px; margin: 0; }
h2 { font-size: 17px; margin: 0 0 12px; }
h3 { font-size: 15px; margin: 20px 0 10px; }

.subtitle { margin: 4px 0 0; color: var(--muted); }

.notice {
  margin: 0;
  padding: 6px 10px;
  border: 1px solid var(--warn-border);
  background: var(--warn-bg);
  color: var(--warn-text);
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.5;
  text-align: right;
  white-space: nowrap;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 8px 16px 24px;
}

.panel {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

.settings form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
}

.field { flex: 1 1 260px; }
.field-action { flex: 0 0 auto; }

.field label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 4px;
}

.field input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: #fff;
  color: var(--text);
}

.field select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
  color: var(--text);
}

button {
  padding: 8px 18px;
  border: 1px solid var(--accent-dark);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }
button:disabled { opacity: 0.55; cursor: wait; }
button.secondary {
  background: #fff;
  color: var(--accent);
  border-color: var(--border-strong);
  padding: 4px 12px;
  font-size: 13px;
}
button.secondary:hover { background: var(--bg); }

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

.status {
  border: 1px solid;
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 16px;
  white-space: pre-wrap;
  word-break: break-word;
}
.status-info { background: var(--info-bg); border-color: var(--info-border); color: var(--info-text); }
.status-ok { background: var(--ok-bg); border-color: var(--ok-border); color: var(--ok-text); }
.status-warn { background: var(--warn-bg); border-color: var(--warn-border); color: var(--warn-text); }
.status-error { background: var(--error-bg); border-color: var(--error-border); color: var(--error-text); }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.section-head h2 { margin: 0; }
.count { color: var(--muted); font-size: 13px; }

.empty {
  border: 1px dashed var(--border);
  border-radius: 6px;
  padding: 18px 12px;
  text-align: center;
  color: var(--muted);
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
th { background: var(--bg); font-weight: 600; white-space: nowrap; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: #f0f6ff; }
tbody tr.selected { background: #ddf4ff; }
td.num, th.num { white-space: nowrap; }

.meta {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 6px 14px;
  margin: 0;
}
.meta dt { font-weight: 600; color: var(--muted); font-size: 13px; }
.meta dd { margin: 0; word-break: break-word; }
.meta dd.summary { white-space: pre-wrap; }

.utterances {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.utterance {
  max-width: 78%;
  border: 1px solid;
  border-radius: 10px;
  padding: 8px 12px;
}
.utterance.side-self {
  align-self: flex-start;
  background: var(--self-bg);
  border-color: var(--self-border);
  border-bottom-left-radius: 2px;
}
.utterance.side-other {
  align-self: flex-end;
  background: var(--other-bg);
  border-color: var(--other-border);
  border-bottom-right-radius: 2px;
}
.utterance.side-unknown {
  align-self: center;
  background: #fff;
  border-color: var(--border);
}

.utterance-head {
  display: flex;
  gap: 8px;
  align-items: baseline;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 2px;
}
.utterance.side-other .utterance-head { flex-direction: row-reverse; }
.speaker-label { font-weight: 700; color: var(--text); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.side-tag { font-size: 11px; }
.utterance-time { font-variant-numeric: tabular-nums; }
.utterance-text { white-space: pre-wrap; word-break: break-word; }

/* ---------- 認証（第2段階で追加） ---------- */

.auth-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
}

.auth-divider {
  border-top: 1px solid var(--border);
  margin: 14px 0;
}

.auth-passkey {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
}
.auth-passkey .hint { margin: 0; }

button.passkey-button { padding: 8px 18px; font-size: 14px; }

.auth-message {
  margin: 10px 0 0;
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-word;
}
.auth-message:empty { display: none; }
.auth-message-info { color: var(--info-text); }
.auth-message-ok { color: var(--ok-text); }
.auth-message-warn { color: var(--warn-text); }
.auth-message-error { color: var(--error-text); }

/* ---------- 運営者ビュー ---------- */

.operator-banner {
  border: 1px solid var(--warn-border);
  background: var(--warn-bg);
  color: var(--warn-text);
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 16px;
  font-weight: 600;
}

.session-meta { margin-bottom: 12px; }

.session-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.session-actions button.secondary { padding: 8px 18px; font-size: 14px; }

footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px 24px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 640px) {
  .page-header { flex-direction: column; }
  .notice { text-align: left; white-space: normal; }
  .utterance { max-width: 92%; }
  .meta { grid-template-columns: 92px 1fr; }
}