/* Login + Chat */
.login-page,
.chat-page {
  padding: 2rem 0 3rem;
  min-height: 50vh;
}

.login-card-wrap {
  display: flex;
  justify-content: center;
}

.login-card {
  width: min(420px, 100%);
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-size: 1.35rem;
  margin-bottom: 0.35rem;
}

.login-lead {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.login-form .form-group {
  margin-bottom: 1rem;
}

.login-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.login-form input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
}

.login-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.login-google-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.login-back {
  display: none;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
  padding: 0.35rem 0;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
}

.login-back svg {
  flex-shrink: 0;
}

.login-code-input {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-align: center;
}

.login-otp-timer {
  margin-top: 0.6rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
}

.login-otp-timer strong {
  color: var(--primary);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.login-resend {
  display: block;
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.35rem 0.5rem;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  text-align: center;
}

.login-resend[hidden],
.login-resend:disabled {
  cursor: not-allowed;
}

.login-resend:disabled {
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .page-login main {
    min-height: calc(100dvh - 56px - env(safe-area-inset-top, 0px));
    display: flex;
    flex-direction: column;
  }

  .page-login .login-page {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0.75rem 0 2rem;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .page-login .login-card-wrap {
    flex: 1;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .page-login .login-back {
    display: inline-flex;
  }

  .page-login .login-card {
    width: 100%;
    border: none;
    box-shadow: none;
    padding: 0.25rem 0 1rem;
    border-radius: 0;
    background: transparent;
  }

  .page-login .login-card h1 {
    font-size: 1.15rem;
    margin-bottom: 1rem;
  }

  .page-login .login-form input {
    font-size: 1rem;
    padding: 0.85rem 1rem;
  }

  .page-login .login-form .btn {
    font-family: 'Peyda', system-ui, sans-serif;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
  }
}

.alert-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.chat-shell {
  max-width: 720px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: min(70vh, 640px);
  box-shadow: var(--shadow);
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: #fafafa;
}

.chat-header h1 {
  font-size: 1.15rem;
}

.chat-header-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.chat-exit-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
  white-space: nowrap;
}

.chat-exit-btn svg {
  flex-shrink: 0;
}

@media (max-width: 480px) {
  .chat-exit-btn span {
    display: none;
  }

  .chat-exit-btn {
    width: 40px;
    height: 40px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
  }
}

.chat-messages,
.admin-chat-thread {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: #f8f9fb;
  min-height: 280px;
}

.chat-bubble {
  max-width: 82%;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.chat-bubble--user {
  align-self: flex-end;
  align-items: flex-end;
}

.chat-bubble--admin {
  align-self: flex-start;
  align-items: flex-start;
}

.chat-bubble-body {
  padding: 0.65rem 0.9rem;
  border-radius: 14px;
  line-height: 1.5;
  font-size: 0.95rem;
  word-break: break-word;
}

.chat-bubble--user .chat-bubble-body {
  background: var(--primary);
  color: white;
  border-bottom-left-radius: 4px;
}

.chat-bubble--admin .chat-bubble-body {
  background: white;
  border: 1px solid var(--border);
  border-bottom-right-radius: 4px;
}

.chat-bubble time {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.chat-compose,
.admin-chat-compose {
  display: flex;
  gap: 0.5rem;
  padding: 0.85rem;
  border-top: 1px solid var(--border);
  background: white;
}

.chat-compose input,
.admin-chat-compose input {
  flex: 1;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
}

.chat-send-btn {
  width: 44px;
  height: 44px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.chat-send-btn img {
  filter: brightness(0) invert(1);
}

/* Admin chat */
.admin-chat-page {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 1rem;
  min-height: calc(100vh - 120px);
}

.admin-chat-sidebar,
.admin-chat-main {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.admin-chat-sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.admin-chat-sidebar-head h1 {
  font-size: 1.1rem;
}

.admin-chat-badge {
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}

.admin-chat-list {
  max-height: calc(100vh - 180px);
  overflow-y: auto;
}

.admin-chat-item {
  display: block;
  width: 100%;
  text-align: right;
  padding: 0.85rem 1rem;
  border: none;
  border-bottom: 1px solid var(--border);
  background: white;
  cursor: pointer;
  font-family: inherit;
}

.admin-chat-item:hover,
.admin-chat-item.active {
  background: #fef2f2;
}

.admin-chat-item strong {
  display: block;
  margin-bottom: 0.2rem;
}

.admin-chat-item-preview {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-chat-item-badge {
  display: inline-block;
  margin-top: 0.25rem;
  background: var(--primary);
  color: white;
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
}

.admin-chat-main {
  display: flex;
  flex-direction: column;
}

.admin-chat-placeholder {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.admin-chat-thread-head {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.admin-chat-thread-head h2 {
  font-size: 1rem;
}

.admin-chat-thread-head p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.admin-chat-empty {
  padding: 1.5rem;
  color: var(--text-muted);
  text-align: center;
}

@media (max-width: 900px) {
  .admin-chat-page {
    grid-template-columns: 1fr;
  }
}