:root {
  color-scheme: light;
  --ink: #17211b;
  --muted: #5f6f65;
  --line: #d8e0da;
  --paper: #f4f7f3;
  --card: #ffffff;
  --accent: #1f6b4a;
  --accent-dark: #164c36;
  --danger: #9b2c2c;
  --ok: #1d5c3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, sans-serif;
}

a { color: var(--accent-dark); }
a:hover { text-decoration-thickness: 2px; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 980px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0.5rem;
}

.brand {
  color: var(--ink);
  font-size: 1.15rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand span { color: var(--accent); }
.topbar-user { display: flex; align-items: center; gap: 0.9rem; color: var(--muted); font-size: 0.92rem; }
.inline-form { display: inline; margin: 0; }
.link-button {
  border: 0;
  background: none;
  color: var(--accent-dark);
  cursor: pointer;
  font: inherit;
  padding: 0;
  text-decoration: underline;
}

.page { max-width: 980px; margin: 0 auto; padding: 1.5rem 1.25rem 3rem; }
.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  max-width: 980px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.4rem;
  box-shadow: 0 8px 24px rgb(23 33 27 / 4%);
}
.card.narrow, .auth-card { max-width: 520px; margin: 2rem auto; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin: 1.5rem 0;
}
.page-head h1 { margin: 0.2rem 0 0.3rem; font-size: clamp(2rem, 5vw, 3rem); letter-spacing: -0.04em; }
h1, h2 { line-height: 1.15; }
h2 { margin-top: 0; font-size: 1.15rem; }
.eyebrow { margin: 0; color: var(--accent); font-size: 0.75rem; font-weight: 750; letter-spacing: 0.14em; text-transform: uppercase; }
.muted { color: var(--muted); }
.small { font-size: 0.86rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }
.button {
  display: inline-block;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 650;
  padding: 0.65rem 1rem;
  text-decoration: none;
}
.button:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.button-secondary { background: transparent; color: var(--accent-dark); }
.button-secondary:hover { background: #e8f0ea; color: var(--accent-dark); }

.stack { display: grid; gap: 1rem; }
label { display: grid; gap: 0.35rem; font-size: 0.9rem; font-weight: 650; }
input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 0.65rem 0.75rem;
}
input:focus, select:focus { outline: 2px solid #9fc9b4; outline-offset: 1px; border-color: var(--accent); }

.notice { max-width: 980px; margin: 0 auto 1rem; padding: 0.8rem 1rem; border-radius: 10px; }
.notice-ok { background: #e6f2ea; color: var(--ok); }
.notice-error { background: #fbe9e9; color: var(--danger); }

.member-list { display: grid; gap: 0.75rem; list-style: none; margin: 0; padding: 0; }
.member-list li { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--line); }
.member-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.badge { display: inline-block; border-radius: 999px; background: #e8f0ea; color: var(--accent-dark); font-size: 0.75rem; font-weight: 750; padding: 0.2rem 0.55rem; }
.badge-soft { background: #f0f3f1; color: var(--muted); }
.plain-list { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.plain-list li + li { margin-top: 0.45rem; }

.invite-box {
  overflow-wrap: anywhere;
  border: 1px dashed var(--line);
  border-radius: 10px;
  background: #f8faf8;
  margin: 1rem 0;
  padding: 0.9rem;
}
.invite-box code { font-size: 0.82rem; }

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .page-head { align-items: flex-start; flex-direction: column; }
  .topbar { align-items: flex-start; }
  .footer { flex-direction: column; }
}

/* Stage 2: navigation, tasks and calendar */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
  margin-right: auto;
}
.main-nav a {
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  padding: 0.35rem 0.7rem;
  text-decoration: none;
}
.main-nav a:hover, .main-nav a.active { background: #e8f0ea; color: var(--accent-dark); }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}
.filters label { min-width: 9rem; flex: 1 1 9rem; }
.filters select { margin-top: 0.2rem; }

.task-list { display: grid; gap: 0.6rem; }
.task-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  box-shadow: 0 5px 18px rgb(23 33 27 / 3%);
}
.task-main { min-width: 0; }
.task-title-line { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.task-title { color: var(--ink); font-weight: 700; overflow-wrap: anywhere; }
.task-meta { display: flex; flex-wrap: wrap; gap: 0.4rem 0.9rem; margin-top: 0.35rem; color: var(--muted); font-size: 0.82rem; }
.task-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; justify-content: flex-end; }
.status-form { display: flex; gap: 0.35rem; align-items: center; margin: 0; }
.status-form select { width: auto; min-width: 8.5rem; padding: 0.4rem 0.5rem; font-size: 0.82rem; }
.button-small { padding: 0.4rem 0.6rem; font-size: 0.8rem; }
.button-danger { background: var(--danger); border-color: var(--danger); }
.button-danger:hover { background: #762020; border-color: #762020; }
.small-link { font-size: 0.84rem; font-weight: 650; }
.overdue { color: var(--danger); font-weight: 700; }
.empty-state { padding: 2rem 1rem; text-align: center; border: 1px dashed var(--line); border-radius: 14px; background: #fff; }
.empty-state h2 { margin-top: 0; }

.badge.status-todo { background: #eef2ef; color: #44564b; }
.badge.status-in_progress { background: #fff3d6; color: #7a5410; }
.badge.status-done { background: #e2f2e8; color: var(--ok); }
.badge.status-cancelled { background: #f1e9e9; color: var(--danger); }

.details { display: grid; grid-template-columns: minmax(8rem, 12rem) 1fr; gap: 0.55rem 1rem; margin: 0; }
.details dt { color: var(--muted); font-weight: 650; }
.details dd { margin: 0; overflow-wrap: anywhere; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.9rem; }
textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); font: inherit; padding: 0.65rem 0.75rem; resize: vertical; }
textarea:focus { outline: 2px solid #9fc9b4; outline-offset: 1px; border-color: var(--accent); }
.checkbox-label { display: flex; align-items: center; gap: 0.55rem; font-weight: 650; }
.checkbox-label input { width: auto; }
.danger-zone { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--line); }

.calendar-card { overflow: hidden; }
.calendar-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; margin-bottom: 1rem; }
.calendar-toolbar h2 { margin: 0; text-transform: capitalize; }
.calendar-tools { display: flex; align-items: center; gap: 0.75rem; }
.calendar-nav {
  display: inline-grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  color: var(--accent-dark);
  font-size: 1.35rem;
  line-height: 1;
  text-decoration: none;
}
.calendar-nav:hover { background: #e8f0ea; }
.calendar-weekdays, .calendar-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); }
.calendar-weekdays { color: var(--muted); font-size: 0.72rem; font-weight: 750; letter-spacing: 0.08em; padding-bottom: 0.4rem; text-transform: uppercase; }
.calendar-weekdays span { padding: 0.25rem; text-align: center; }
.calendar-grid { border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.calendar-day { min-height: 6.4rem; padding: 0.35rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }
.calendar-day-outside { background: #fafbf9; color: #9aa69e; }
.calendar-day-today { background: #f0f7f2; }
.calendar-day-number { display: block; margin-bottom: 0.25rem; font-size: 0.78rem; font-weight: 750; }
.calendar-day-today .calendar-day-number { color: var(--accent-dark); }
.event-chip { display: block; margin: 0.18rem 0; padding: 0.18rem 0.3rem; border-radius: 5px; background: #e8f0ea; color: var(--accent-dark); font-size: 0.72rem; line-height: 1.25; text-decoration: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.event-chip:hover { background: #d8e9dd; }
.event-time { color: var(--muted); font-size: 0.67rem; margin-right: 0.15rem; }
.calendar-more { color: var(--muted); font-size: 0.7rem; }
.occurrence-list { display: grid; gap: 0.55rem; list-style: none; margin: 0; padding: 0; }
.occurrence-list li { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; border-bottom: 1px solid var(--line); padding-bottom: 0.55rem; }
.occurrence-list li:last-child { border-bottom: 0; padding-bottom: 0; }

@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; }
  .main-nav { order: 3; width: 100%; margin: 0; overflow-x: auto; }
  .task-row { align-items: flex-start; flex-direction: column; }
  .task-actions { width: 100%; justify-content: flex-start; }
  .form-grid, .details { grid-template-columns: 1fr; }
  .calendar-card { padding: 0.8rem; }
  .calendar-day { min-height: 4.7rem; padding: 0.2rem; }
  .event-time { display: none; }
  .event-chip { font-size: 0.66rem; }
}

/* Stage 3: private AI chat and voice controls. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.chat-shell {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  margin-top: 1.5rem;
}
.chat-sidebar { position: sticky; top: 1rem; }
.chat-sidebar-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.75rem; }
.chat-sidebar-head h1 { margin: 0.2rem 0 0.35rem; font-size: 1.55rem; letter-spacing: -0.03em; }
.chat-list { display: grid; gap: 0.35rem; margin-top: 1rem; }
.chat-list-item {
  display: grid;
  gap: 0.15rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--ink);
  text-decoration: none;
}
.chat-list-item:hover { background: #f0f5f1; }
.chat-list-item.active { background: #e8f0ea; border-color: #cfe0d5; }
.chat-list-title { font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-list-meta { color: var(--muted); font-size: 0.74rem; }
.chat-settings-link { display: inline-block; margin-top: 1rem; }
.chat-main { min-height: 60vh; }
.chat-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.chat-head h1 { margin: 0.2rem 0; font-size: clamp(1.5rem, 4vw, 2.2rem); letter-spacing: -0.035em; overflow-wrap: anywhere; }
.chat-head-actions { display: flex; align-items: center; gap: 0.65rem; flex-wrap: wrap; }
.chat-usage { margin: 0.8rem 0; padding: 0.5rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.chat-messages {
  display: grid;
  gap: 0.8rem;
  max-height: 55vh;
  overflow-y: auto;
  padding: 0.25rem 0.15rem 0.8rem;
}
.chat-message {
  max-width: 86%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}
.chat-message-user { margin-left: auto; background: #e8f0ea; border-color: #d5e4d9; }
.chat-message-assistant { margin-right: auto; background: #fbfcfa; }
.chat-message-meta { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 0.3rem; color: var(--muted); font-size: 0.76rem; }
.chat-message-content { white-space: pre-wrap; overflow-wrap: anywhere; }
.chat-message-actions { margin-top: 0.35rem; text-align: right; }
.chat-empty { grid-column: 1 / -1; }
.chat-composer { display: grid; gap: 0.55rem; margin-top: 0.4rem; }
.chat-composer textarea { width: 100%; min-height: 5.2rem; resize: vertical; }
.chat-composer-actions { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; flex-wrap: wrap; }
.chat-voice-actions { display: flex; align-items: center; gap: 0.55rem; flex-wrap: wrap; }
.chat-voice-auto { display: inline-flex; align-items: center; gap: 0.35rem; }
.chat-privacy-note { margin: 0; }
.recording { background: var(--danger); border-color: var(--danger); color: #fff; }
.recording:hover { background: #762020; border-color: #762020; }
.button:disabled, .button[disabled] { cursor: not-allowed; opacity: 0.55; }
.link-danger { color: var(--danger); }
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; min-width: 780px; }
.data-table th, .data-table td { padding: 0.65rem 0.55rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { color: var(--muted); font-size: 0.78rem; font-weight: 750; }
.data-table input[type="number"] { width: 7rem; }
.data-table input[type="checkbox"] { width: auto; }
.settings-actions { margin-top: 1rem; }
.nowrap { white-space: nowrap; }

@media (max-width: 720px) {
  .chat-shell { grid-template-columns: 1fr; }
  .chat-sidebar { position: static; }
  .chat-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chat-messages { max-height: 48vh; }
  .chat-message { max-width: 94%; }
  .chat-head-actions { width: 100%; justify-content: space-between; }
  .chat-composer-actions { align-items: stretch; }
  .chat-composer-actions .button { flex: 1 1 auto; }
  .data-table { min-width: 680px; }
}

/* --- JF-VOICE-13: voice dialogue in the chat composer ------------------- */
.chat-voice-bar {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  flex: 1 1 100%;
}

.chat-ptt {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 44px;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.chat-ptt.recording {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
  animation: chat-ptt-pulse 1.1s ease-in-out infinite;
}

.chat-ptt-icon { font-size: 1.05em; line-height: 1; }

@keyframes chat-ptt-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(155, 44, 44, 0.45); }
  50%      { box-shadow: 0 0 0 6px rgba(155, 44, 44, 0); }
}

.chat-voice-state {
  font-size: 0.85rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--muted);
  white-space: nowrap;
}

.chat-voice-state[data-state="recording"]   { background: #fbeaea; border-color: var(--danger); color: var(--danger); }
.chat-voice-state[data-state="recognizing"],
.chat-voice-state[data-state="thinking"]    { background: #fdf4e0; border-color: #d8b25a; color: #7a5a10; }
.chat-voice-state[data-state="speaking"]    { background: #e8f3ec; border-color: var(--accent); color: var(--accent-dark); }
.chat-voice-state[data-state="error"]       { background: #fbeaea; border-color: var(--danger); color: var(--danger); }
.chat-voice-state[data-state="cancelled"]   { background: var(--paper); border-color: var(--line); color: var(--muted); }

.chat-voice-hint {
  flex: 1 1 100%;
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.chat-voice-hint[data-tone="warning"] { color: var(--danger); }

@media (max-width: 720px) {
  .chat-voice-bar { gap: 0.4rem; }
  .chat-voice-bar .button { flex: 1 1 auto; min-height: 44px; }
  .chat-ptt { flex: 1 1 100%; justify-content: center; }
  .chat-voice-state { flex: 1 1 100%; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .chat-ptt.recording { animation: none; }
}

.chat-voice-state[data-state="unknown"] {
  background: #eef1f4;
  border-color: #9aa4b2;
  color: #4a5560;
}

/* JF-VOICE-SETTINGS-01: personal voice page */
.voice-list { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; gap: 0.5rem; }
.voice-row {
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
  padding: 0.75rem; border: 1px solid var(--border, #d8d8e0); border-radius: 12px;
  flex-wrap: wrap;
}
.voice-choice { display: flex; align-items: flex-start; gap: 0.6rem; cursor: pointer; flex: 1 1 16rem; }
.voice-choice input { margin-top: 0.25rem; }
.voice-text { display: flex; flex-direction: column; gap: 0.15rem; }
.voice-speed { margin: 0.5rem 0 1rem; }
.voice-speed label { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.voice-speed input[type="range"] { flex: 1 1 12rem; min-width: 8rem; }
.voice-preview { white-space: nowrap; }
@media (max-width: 520px) {
  .voice-row { flex-direction: column; align-items: stretch; }
  .voice-preview { width: 100%; }
}