:root {
  --bg: #f2f2f7;
  --bg-elevated: #ffffff;
  --ink: #000000;
  --ink-secondary: #3c3c43;
  --ink-tertiary: #8e8e93;
  --separator: rgba(60, 60, 67, 0.12);
  --fill: rgba(120, 120, 128, 0.12);
  --blue: #007aff;
  --green: #34c759;
  --indigo: #5856d6;
  --pink: #ff2d55;
  --bubble-translate: rgba(0, 122, 255, 0.07);
  --bubble-translate-border: rgba(0, 122, 255, 0.16);
  --group-radius: 1rem;
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-elevated: #1c1c1e;
    --ink: #ffffff;
    --ink-secondary: rgba(235, 235, 245, 0.6);
    --ink-tertiary: rgba(235, 235, 245, 0.3);
    --separator: rgba(84, 84, 88, 0.65);
    --fill: rgba(120, 120, 128, 0.24);
    --blue: #0a84ff;
    --green: #30d158;
    --pink: #ff375f;
    --bubble-translate: rgba(10, 132, 255, 0.16);
    --bubble-translate-border: rgba(10, 132, 255, 0.28);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
  background: var(--bg);
  color: var(--ink);
}

body {
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(0, 122, 255, 0.13), transparent 32rem),
    radial-gradient(circle at bottom right, rgba(88, 86, 214, 0.12), transparent 34rem),
    var(--bg);
}

button, input, select {
  font: inherit;
  color: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ── App Shell ── */

.app-shell {
  width: 100%;
  max-width: 72rem;
  height: 100svh;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
  background: var(--bg);
}

/* ── Auth View ── */

.auth-view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  padding: max(1rem, env(safe-area-inset-top)) 1.25rem max(1rem, env(safe-area-inset-bottom));
  transition: opacity 0.35s ease, transform 0.35s ease;
  z-index: 2;
}

.auth-view.is-hidden {
  display: none;
}

.auth-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.app-icon {
  width: 5rem;
  height: 5rem;
  display: grid;
  place-items: center;
  filter: drop-shadow(0 6px 14px rgba(46, 115, 255, 0.25));
}

.app-icon svg { width: 5rem; height: 5rem; }

h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 .brand-accent,
.nav-title span {
  color: var(--blue);
  font-weight: 700;
}

.auth-subtitle {
  font-size: 0.9375rem;
  color: var(--ink-tertiary);
  font-weight: 500;
}

.auth-form-area {
  width: 100%;
  max-width: 28rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.auth-footer {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--ink-tertiary);
  line-height: 1.5;
}

.auth-switch-link {
  align-self: center;
  border: none;
  background: none;
  color: var(--blue);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

.auth-switch-link:active {
  opacity: 0.7;
}

.auth-secondary-btn {
  display: block;
  width: 100%;
  height: 2.75rem;
  border: 1px solid var(--separator);
  border-radius: 0.75rem;
  background: var(--fill);
  color: var(--ink-secondary);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.auth-secondary-btn:hover {
  background: rgba(0, 122, 255, 0.08);
  border-color: rgba(0, 122, 255, 0.25);
  color: var(--blue);
}

.auth-secondary-btn:active {
  transform: scale(0.98);
}

.user-auth-view,
.admin-auth-view {
  background:
    radial-gradient(circle at 20% 10%, rgba(0, 122, 255, 0.16), transparent 28rem),
    radial-gradient(circle at 80% 90%, rgba(88, 86, 214, 0.14), transparent 30rem),
    var(--bg);
}

.user-auth-card,
.admin-auth-card {
  width: min(100%, 26rem);
  background: var(--bg-elevated);
  border: 1px solid var(--separator);
  border-radius: 1.25rem;
  padding: 2rem 1.75rem 1.75rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.user-auth-card .auth-form-area,
.admin-auth-card .auth-form-area {
  max-width: none;
}

.password-field {
  position: relative;
  display: flex;
  align-items: center;
}

.password-field input {
  padding-right: 2.75rem;
}

.password-toggle {
  position: absolute;
  right: 0.5rem;
  width: 2rem;
  height: 2rem;
  border: none;
  border-radius: 0.375rem;
  background: transparent;
  color: var(--ink-tertiary);
  display: grid;
  place-items: center;
  cursor: pointer;
}

.password-toggle .icon-hide { display: none; }
.password-toggle.is-visible .icon-show { display: none; }
.password-toggle.is-visible .icon-hide { display: block; }

.password-toggle:active { opacity: 0.6; }

.form-row-separator {
  border-top: 1px solid var(--separator);
}

.form-row-submit {
  padding-top: 0.5rem;
  padding-bottom: 1rem;
}

.form-row-submit .app-button {
  width: 100%;
}

.form-group > .form-message {
  padding: 0 1rem;
  min-height: 1.25rem;
}

/* ── Forms ── */

.form-group {
  background: var(--bg-elevated);
  border-radius: var(--group-radius);
  overflow: hidden;
}

.form-row { padding: 0.875rem 1rem; }

.form-row label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-secondary);
  margin-bottom: 0.375rem;
}

.form-row input {
  width: 100%;
  height: 2.75rem;
  padding: 0 0.75rem;
  border: 1px solid var(--separator);
  border-radius: 0.625rem;
  background: var(--fill);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-row input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3.5px rgba(0, 122, 255, 0.15);
}

.input-with-action {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

.input-with-action input {
  flex: 1;
  min-width: 0;
}

.input-action-btn {
  flex-shrink: 0;
  height: 2.75rem;
  padding: 0 0.875rem;
  border: 1px solid var(--separator);
  border-radius: 0.625rem;
  background: var(--bg);
  color: var(--blue);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s;
}

.input-action-btn:hover {
  background: rgba(0, 122, 255, 0.08);
  border-color: rgba(0, 122, 255, 0.25);
}

.input-action-btn:active {
  transform: scale(0.98);
}

.form-message {
  min-height: 1.25rem;
  padding: 0 0.25rem;
  color: #ff3b30;
  font-size: 0.8125rem;
  font-weight: 500;
}

.app-button {
  display: block;
  width: 100%;
  height: 3.125rem;
  border: none;
  border-radius: 0.75rem;
  font-size: 1.0625rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.12s;
}

.app-button:active { transform: scale(0.98); opacity: 0.85; }
.app-button.primary { background: var(--blue); color: #fff; }

/* ── Translator View ── */

.translator-view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.translator-view.is-hidden {
  display: none;
}

.nav-bar {
  flex-shrink: 0;
  display: grid;
  grid-template-columns: 2.5rem 1fr 2.5rem;
  align-items: center;
  padding: 0.75rem clamp(0.75rem, 2vw, 1.5rem) 0.5rem;
}

.nav-icon-button {
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 50%;
  background: var(--fill);
  color: var(--ink);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.12s;
}

.nav-icon-button:active { transform: scale(0.9); opacity: 0.7; }

.nav-spacer { width: 2.5rem; height: 2.5rem; }

.nav-title {
  text-align: center;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.nav-title span { color: var(--blue); }

/* live pill */

.live-pill-wrap {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  padding: 0.15rem 0 0.5rem;
}

.live-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999rem;
  background: var(--fill);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.live-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--ink-tertiary);
  transition: background 0.3s;
}

.is-live .live-dot {
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(52, 199, 89, 0.5);
  animation: livePulse 1.6s ease-out infinite;
}

.is-live .live-pill { color: var(--ink); }

/* ── Chat List ── */

.chat-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  width: min(100%, 54rem);
  margin: 0 auto;
  padding: 0.5rem clamp(1rem, 3vw, 1.5rem) 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.chat-empty {
  margin: auto;
  text-align: center;
  color: var(--ink-tertiary);
  font-size: 0.95rem;
  line-height: 1.6;
  padding: 2rem 1rem;
  max-width: 18rem;
}

.chat-empty-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.875rem;
}

.chat-empty-steps {
  list-style: none;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-top: 0.25rem;
}

.chat-empty-steps li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.875rem;
  line-height: 1.45;
}

.chat-empty-steps li::before {
  content: counter(step);
  counter-increment: step;
  flex-shrink: 0;
  width: 1.375rem;
  height: 1.375rem;
  border-radius: 50%;
  background: rgba(0, 122, 255, 0.14);
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  margin-top: 0.1rem;
}

.chat-empty-steps {
  counter-reset: step;
}

.history-banner {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0 clamp(1rem, 3vw, 1.5rem) 0.5rem;
  padding: 0.625rem 0.875rem;
  border-radius: 0.75rem;
  background: rgba(255, 149, 0, 0.12);
  border: 1px solid rgba(255, 149, 0, 0.28);
  color: var(--ink-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
}

.history-banner.is-hidden {
  display: none;
}

.history-banner-btn {
  flex-shrink: 0;
  border: none;
  background: none;
  color: var(--blue);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0.125rem 0;
  white-space: nowrap;
}

.history-banner-btn:hover {
  text-decoration: underline;
}

.chat-empty .chat-empty-icon {
  font-size: 2.2rem;
  margin-bottom: 0.6rem;
}

.chat-item {
  position: relative;
  display: grid;
  grid-template-columns: 1.9rem 1fr;
  gap: 0.55rem;
  align-items: start;
}

/* 行（バブル）の高さいっぱいを使い、各ドット中心から次のドット中心まで
   途切れず縦バーを引く。列幅 1.9rem の中心 = 0.95rem。
   ドット中心 = 上から 0.975rem、行下端から次ドット中心まで = 余白0.85rem + 0.975rem */
.chat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 0.95rem;
  top: 0.975rem;
  bottom: -1.825rem;
  width: 2px;
  transform: translateX(-50%);
  background: var(--separator);
  z-index: 0;
}

.chat-marker {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 0.15rem;
}

.chat-marker .dot {
  position: relative;
  z-index: 1;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--fill);
  color: var(--ink-secondary);
  flex-shrink: 0;
}

.chat-marker.translation .dot {
  background: rgba(0, 122, 255, 0.14);
  color: var(--blue);
}


.bubble {
  background: var(--bg-elevated);
  border: 1px solid var(--separator);
  border-radius: 1rem;
  padding: 0.85rem 0.95rem;
  animation: bubbleIn 0.28s ease;
}

.bubble.translation {
  background: var(--bubble-translate);
  border-color: var(--bubble-translate-border);
}

.bubble-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.bubble-lang {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
}

.bubble.translation .bubble-lang { color: var(--blue); }

.speak-button {
  border: none;
  background: none;
  color: var(--ink-tertiary);
  display: inline-flex;
  padding: 0.15rem;
  cursor: pointer;
  transition: opacity 0.15s;
}

.bubble.translation .speak-button { color: var(--blue); }
.speak-button:active { opacity: 0.5; }

.bubble-text {
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--ink);
  word-break: break-word;
  white-space: pre-wrap;
}

.bubble-text.is-placeholder { color: var(--ink-tertiary); }

.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.55rem;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--blue);
}

.typing-dots span {
  display: inline-block;
  width: 0.35rem;
  height: 0.35rem;
  margin-right: 0.2rem;
  border-radius: 50%;
  background: var(--ink-tertiary);
  animation: typing 1.2s infinite ease-in-out;
}

.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

/* ── Mic Dock ── */

.mic-dock {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 1.25rem max(0.9rem, env(safe-area-inset-bottom));
}

.mic-hint {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink-secondary);
  text-align: center;
  max-width: 16rem;
  line-height: 1.4;
}

.translator-view.is-live .mic-hint {
  color: var(--pink);
}

.mic-fab {
  width: 4.5rem;
  height: 4.5rem;
  flex-shrink: 0;
  border: none;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0, 122, 255, 0.35);
  transition: transform 0.15s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.mic-fab:active { transform: scale(0.92); }
.mic-fab:disabled { opacity: 0.55; }

.is-live .mic-fab {
  background: var(--pink);
  box-shadow: 0 6px 22px rgba(255, 45, 85, 0.45);
}

.icon-stop { display: none; }
.is-live .mic-fab .icon-mic { display: none; }
.is-live .mic-fab .icon-stop { display: block; }

/* ── Drawer ── */

.drawer-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  z-index: 9;
  transition: opacity 0.3s ease;
}

.drawer-overlay.is-open { opacity: 1; }

.drawer {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(84%, 20rem);
  z-index: 10;
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.32s cubic-bezier(0.32, 0.72, 0, 1);
  box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
  padding: 0.75rem 0;
}

.drawer.is-open { transform: translateX(0); }

.translator-view.is-hidden ~ .drawer {
  display: none;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem 0.75rem;
}

.drawer-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.new-conv-button {
  margin: 0 1rem 0.75rem;
  height: 2.75rem;
  border: 1px solid var(--separator);
  border-radius: 0.75rem;
  background: var(--fill);
  color: var(--blue);
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: opacity 0.15s;
}

.new-conv-button:active { opacity: 0.6; }

.session-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 0.75rem;
}

.session-day {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-tertiary);
  padding: 0.75rem 0.5rem 0.35rem;
}

.session-item {
  width: 100%;
  text-align: left;
  border: none;
  background: none;
  padding: 0.7rem 0.5rem;
  border-radius: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  cursor: pointer;
  transition: background 0.15s;
}

.session-item:active { background: var(--fill); }
.session-item.is-active { background: var(--fill); }

.session-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-meta {
  font-size: 0.78rem;
  color: var(--ink-tertiary);
}

.session-empty {
  text-align: center;
  color: var(--ink-tertiary);
  font-size: 0.9rem;
  padding: 2rem 1rem;
}

.logout-link {
  margin: 0.5rem 1rem 0;
  padding: 0.6rem;
  border: none;
  background: none;
  color: var(--pink);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border-top: 0.5px solid var(--separator);
}

.settings-link {
  margin: 0.75rem 1rem 0;
  padding: 0.6rem;
  border: none;
  background: none;
  color: var(--blue);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  width: calc(100% - 2rem);
}

/* ── Password change dialog ── */

.password-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
}

.password-overlay.is-hidden {
  display: none;
}

.password-dialog {
  width: min(100%, 22rem);
  padding: 1.5rem;
  border-radius: 1.25rem;
  background: var(--bg-elevated);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.password-dialog h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 700;
}

.password-dialog-desc {
  margin: 0 0 1rem;
  color: var(--ink-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.password-change-form .form-row {
  margin-bottom: 0.85rem;
}

.password-change-form label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.password-change-form input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--separator);
  border-radius: 0.65rem;
  font-size: 1rem;
  background: var(--bg-elevated);
  color: var(--ink);
}

.password-dialog-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.password-dialog-actions .app-button {
  flex: 1;
}

.password-logout-link {
  display: block;
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.5rem;
  border: none;
  background: none;
  color: var(--pink);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
}

.app-button.secondary {
  background: var(--fill);
  color: var(--ink);
  border: 1px solid var(--separator);
}

/* ── Toast ── */

.toast {
  position: absolute;
  left: 50%;
  bottom: 6rem;
  transform: translateX(-50%) translateY(1rem);
  z-index: 20;
  padding: 0.6rem 1.1rem;
  border-radius: 999rem;
  background: rgba(0, 0, 0, 0.82);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Keyframes ── */

@keyframes livePulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 199, 89, 0.5); }
  100% { box-shadow: 0 0 0 0.5rem rgba(52, 199, 89, 0); }
}

@keyframes bubbleIn {
  from { opacity: 0; transform: translateY(0.4rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-0.2rem); opacity: 1; }
}

/* ── Desktop ── */

@media (min-width: 720px) {
  .app-shell {
    height: min(100svh, 56rem);
    min-height: 42rem;
    margin: clamp(0rem, 2vw, 1.25rem) auto;
    border: 1px solid var(--separator);
    border-radius: 1.25rem;
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.12);
  }

  .translator-view {
    background:
      linear-gradient(90deg, var(--bg-elevated) 0, var(--bg-elevated) 17.5rem, transparent 17.5rem),
      var(--bg);
  }

  .drawer {
    width: 17.5rem;
    transform: none;
    box-shadow: none;
    border-right: 1px solid var(--separator);
    z-index: 1;
  }

  .drawer-overlay,
  .drawer-header .nav-icon-button {
    display: none;
  }

  .translator-view .nav-bar,
  .translator-view .live-pill-wrap,
  .translator-view .chat-list,
  .translator-view .mic-dock {
    margin-left: 17.5rem;
  }

  .nav-spacer {
    visibility: hidden;
  }

  #historyButton {
    visibility: hidden;
  }

  .auth-view {
    width: min(100%, 34rem);
    left: 50%;
    transform: translateX(-50%);
  }

  .auth-view.is-hidden {
    display: none;
  }
}

/* ── Reduced Motion ── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}


/* ── Nav Actions (admin button group) ── */

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    justify-content: flex-end;
}

.nav-bar:has(.nav-actions) {
    grid-template-columns: 2.5rem 1fr auto;
}

/* ── Admin Auth Login ── */

.admin-auth-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 1rem;
  background: rgba(0, 122, 255, 0.1);
}

.admin-auth-icon svg {
  width: 2.5rem;
  height: 2.5rem;
}

.admin-auth-card h1 {
  font-size: 1.625rem;
}

/* ── Admin View ── */

.admin-view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 0% 0%, rgba(0, 122, 255, 0.08), transparent 40%),
    radial-gradient(circle at 100% 100%, rgba(88, 86, 214, 0.06), transparent 40%),
    var(--bg);
  z-index: 1;
}

.admin-view.is-hidden {
  display: none;
}

.admin-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem clamp(1rem, 4vw, 2rem);
  border-bottom: 1px solid var(--separator);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 2;
}

@media (prefers-color-scheme: dark) {
  .admin-header {
    background: rgba(28, 28, 30, 0.82);
  }
}

.admin-header-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  min-width: 0;
}

.admin-header-logo {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.admin-header-logo span {
  color: var(--blue);
}

.admin-header-badge {
  flex-shrink: 0;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25em 0.55em;
  border-radius: 0.375rem;
  background: rgba(0, 122, 255, 0.14);
  color: var(--blue);
}

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.admin-header-user {
  font-size: 0.8125rem;
  color: var(--ink-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 12rem;
}

.admin-header-avatar {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(0, 122, 255, 0.14);
  color: var(--blue);
  font-size: 0.8125rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.admin-logout-btn {
  flex-shrink: 0;
  height: 2.25rem;
  padding: 0 0.875rem;
  border: 1px solid var(--separator);
  border-radius: 0.5rem;
  background: var(--fill);
  color: var(--ink-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.admin-logout-btn:hover {
  background: rgba(255, 59, 48, 0.08);
  border-color: rgba(255, 59, 48, 0.25);
  color: var(--pink);
}

.admin-logout-btn:active {
  transform: scale(0.97);
}

.admin-content {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1.5rem clamp(1rem, 4vw, 2rem) 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 52rem;
  width: 100%;
  margin: 0 auto;
}

.admin-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.admin-stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--separator);
  border-radius: 0.875rem;
  padding: 1rem 1.125rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.admin-stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.admin-stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  line-height: 1.1;
}

.admin-stat-value-sm {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.admin-page-intro {
  padding: 0.25rem 0 0.5rem;
}

.admin-page-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.375rem;
}

.admin-page-desc {
  font-size: 0.9375rem;
  color: var(--ink-secondary);
  line-height: 1.5;
}

.admin-card {
  background: var(--bg-elevated);
  border: 1px solid var(--separator);
  border-radius: 1rem;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.admin-search-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.875rem;
  padding: 0 0.75rem;
  height: 2.5rem;
  border: 1px solid var(--separator);
  border-radius: 0.625rem;
  background: var(--bg);
  color: var(--ink-tertiary);
}

.admin-search {
  flex: 1;
  min-width: 0;
  height: 100%;
  border: none;
  background: transparent;
  font-size: 0.875rem;
  color: var(--ink);
  outline: none;
}

.admin-search::placeholder {
  color: var(--ink-tertiary);
}

.admin-search-clear {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  border: none;
  border-radius: 50%;
  background: var(--fill);
  color: var(--ink-secondary);
  font-size: 1.125rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.admin-search-clear:active {
  opacity: 0.7;
}

.admin-list-head {
  display: none;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
  padding: 0 0.75rem 0.375rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
}

.admin-user-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem;
  border: 1px solid transparent;
  background: var(--fill);
  border-radius: 0.75rem;
  transition: background 0.15s, border-color 0.15s;
  text-align: left;
  font: inherit;
  color: inherit;
}

.admin-user-row:hover {
  background: rgba(0, 122, 255, 0.06);
  border-color: rgba(0, 122, 255, 0.12);
}

.admin-copy-btn {
  flex-shrink: 0;
  height: 2rem;
  padding: 0 0.75rem;
  border: 1px solid rgba(0, 122, 255, 0.28);
  border-radius: 0.5rem;
  background: rgba(0, 122, 255, 0.1);
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, transform 0.12s;
}

.admin-copy-btn:hover {
  background: rgba(0, 122, 255, 0.18);
}

.admin-copy-btn:active {
  transform: scale(0.96);
}

.admin-user-row.is-copied .admin-copy-btn {
  background: rgba(52, 199, 89, 0.16);
  border-color: rgba(52, 199, 89, 0.35);
  color: var(--green);
}

.admin-user-row.is-copied {
  background: rgba(52, 199, 89, 0.12);
  border-color: rgba(52, 199, 89, 0.28);
}

.admin-list-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.admin-refresh-btn {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--separator);
  border-radius: 0.5rem;
  background: var(--bg);
  color: var(--ink-secondary);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.12s;
}

.admin-refresh-btn:hover {
  background: rgba(0, 122, 255, 0.08);
  border-color: rgba(0, 122, 255, 0.25);
  color: var(--blue);
}

.admin-refresh-btn:active {
  transform: scale(0.94);
}

.admin-del-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.admin-del-btn:disabled:hover {
  background: transparent;
  color: var(--ink-tertiary);
}

.admin-user-row:has(.admin-del-btn:disabled) {
  opacity: 0.92;
}

.app-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.admin-card-head {
  margin-bottom: 1rem;
}

.admin-card-head-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.admin-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--ink);
}

.admin-card-desc {
  font-size: 0.8125rem;
  color: var(--ink-tertiary);
  line-height: 1.45;
}

.admin-user-count {
  flex-shrink: 0;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--blue);
  background: rgba(0, 122, 255, 0.1);
  padding: 0.35em 0.75em;
  border-radius: 999rem;
  white-space: nowrap;
}

.admin-user-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.admin-user-avatar {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  background: rgba(0, 122, 255, 0.14);
  color: var(--blue);
  font-size: 0.875rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.admin-user-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.admin-user-id {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-user-meta {
  font-size: 0.75rem;
  color: var(--ink-tertiary);
}

.admin-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  color: var(--ink-tertiary);
  font-size: 0.875rem;
  padding: 2rem 0;
}

.admin-spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--separator);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: adminSpin 0.7s linear infinite;
}

@keyframes adminSpin {
  to { transform: rotate(360deg); }
}

.admin-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.375rem;
  padding: 2rem 1rem;
  color: var(--ink-tertiary);
}

.admin-empty svg {
  margin-bottom: 0.5rem;
  opacity: 0.45;
}

.admin-empty-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.admin-empty-desc {
  font-size: 0.8125rem;
  line-height: 1.45;
  max-width: 16rem;
}

.admin-empty-action {
  margin-top: 0.75rem;
  height: 2.5rem;
  padding: 0 1rem;
  border: none;
  border-radius: 0.625rem;
  background: var(--blue);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
}

.admin-empty-action:active {
  transform: scale(0.97);
  opacity: 0.9;
}

.admin-empty-error .admin-empty-title {
  color: var(--pink);
}

/* ── Admin Add Form ── */

.admin-add-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.admin-add-row {
  display: flex;
  gap: 0.625rem;
  align-items: stretch;
}

.admin-icon-btn {
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--separator);
  border-radius: 0.625rem;
  background: var(--bg);
  color: var(--ink-secondary);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.admin-icon-btn:hover {
  background: rgba(0, 122, 255, 0.08);
  border-color: rgba(0, 122, 255, 0.25);
  color: var(--blue);
}

.admin-icon-btn:active {
  transform: scale(0.96);
}

.admin-input {
  flex: 1;
  min-width: 0;
  height: 2.75rem;
  padding: 0 0.875rem;
  border: 1px solid var(--separator);
  border-radius: 0.625rem;
  background: var(--bg);
  font-size: 0.9375rem;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.admin-input::placeholder {
  color: var(--ink-tertiary);
}

.admin-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
}

.admin-add-btn {
  flex-shrink: 0;
  height: 2.75rem;
  padding: 0 1.125rem;
  border: none;
  border-radius: 0.625rem;
  background: var(--blue);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: opacity 0.15s, transform 0.12s;
  white-space: nowrap;
}

.admin-add-btn:active {
  transform: scale(0.97);
  opacity: 0.88;
}

.admin-add-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.admin-add-message {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--pink);
  min-height: 1rem;
}

.admin-add-message.is-success {
  color: var(--green);
}

.admin-quick-add {
  align-self: flex-start;
  border: none;
  background: none;
  color: var(--blue);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.125rem 0;
}

.admin-quick-add:hover {
  text-decoration: underline;
}

.admin-quick-add:active {
  opacity: 0.7;
}

.admin-del-btn {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 0.5rem;
  background: transparent;
  color: var(--ink-tertiary);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.12s;
}

.admin-del-btn:hover {
  background: rgba(255, 59, 48, 0.1);
  color: var(--pink);
}

.admin-del-btn:active {
  transform: scale(0.92);
}

@media (max-width: 480px) {
  .admin-header-user {
    display: none;
  }

  .admin-add-row {
    flex-direction: column;
  }

  .admin-icon-btn,
  .admin-add-btn {
    width: 100%;
    justify-content: center;
  }

  .input-with-action {
    flex-direction: column;
  }

  .input-action-btn {
    width: 100%;
  }

  .admin-copy-btn {
    padding: 0 0.5rem;
    font-size: 0.6875rem;
  }
}

@media (min-width: 720px) {
  .admin-content {
    padding-top: 2rem;
    max-width: 56rem;
  }

  .admin-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 1.25rem;
    align-items: start;
  }

  .admin-card-list {
    min-height: 20rem;
  }

  .admin-list-head {
    display: grid;
  }

  .admin-list-head span:last-child {
    text-align: right;
    padding-right: 0.25rem;
  }
}

@media (min-width: 48rem) {
  .admin-content {
    padding-top: 2rem;
  }
}

/* ── Confirm Dialog ── */

.dialog-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 30;
    padding: 1.5rem;
}

.dialog-overlay.is-hidden {
    display: none;
}

.dialog {
    background: var(--bg-elevated);
    border-radius: 1rem;
    padding: 1.5rem 1.25rem 1.25rem;
    width: 100%;
    max-width: 20rem;
    box-shadow: 0 16px 48px rgba(0,0,0,0.22);
}

.dialog-message {
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    text-align: center;
    margin-bottom: 1.25rem;
    line-height: 1.45;
}

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

.dialog-btn {
    flex: 1;
    height: 2.75rem;
    border: none;
    border-radius: 0.7rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.15s, transform 0.12s;
}

.dialog-btn:active { transform: scale(0.97); opacity: 0.85; }

.dialog-btn.cancel {
    background: var(--fill);
    color: var(--ink);
}

.dialog-btn.danger {
    background: #ff3b30;
    color: #fff;
}