.agent-body {
  height: 100vh;
  overflow: hidden;
  background: var(--background);
}
.agent-app {
  display: grid;
  grid-template-columns: 286px minmax(0, 1fr);
  height: 100vh;
  min-height: 0;
}
.agent-sidebar {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 92%, var(--surface-soft));
  z-index: 40;
}
.agent-sidebar-top { padding: 18px 16px 12px; }
.agent-sidebar-brand {
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 18px;
  font-weight: 850;
  padding: 4px 6px 15px;
}
.agent-sidebar-brand img { display: block; max-width: 205px; max-height: 42px; object-fit: contain; }
.agent-brand-mark,
.agent-welcome-mark {
  display: inline-grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
  background: linear-gradient(145deg, var(--accent), var(--primary-dark));
  box-shadow: 0 10px 30px rgba(21, 101, 192, .22);
}
.agent-brand-mark { width: 36px; height: 36px; border-radius: 12px; }
.agent-new-chat,
.agent-search-link {
  width: 100%;
  min-height: 46px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-radius: 13px;
  padding: 10px 13px;
  color: var(--text);
  font-weight: 720;
}
.agent-new-chat {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: 0 8px 22px rgba(26, 64, 115, .06);
}
.agent-new-chat:hover { border-color: var(--primary); color: var(--primary); }
.agent-new-chat span:first-child { font-size: 22px; line-height: 1; }
.agent-search-link { margin-top: 8px; color: var(--muted); }
.agent-search-link:hover { background: var(--surface-soft); color: var(--primary); }
.agent-history-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 19px 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.agent-history-heading button {
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 8px;
  padding: 4px 7px;
}
.agent-history-heading button:hover { background: var(--surface-soft); color: var(--text); }
.agent-conversation-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 2px 10px 18px;
  scrollbar-width: thin;
}
.agent-conversation-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  border-radius: 11px;
  margin-bottom: 3px;
}
.agent-conversation-item:hover,
.agent-conversation-item.is-active { background: var(--surface-soft); }
.agent-conversation-open {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 10px 8px 10px 10px;
  text-align: left;
}
.agent-conversation-open span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.agent-conversation-icon { flex: 0 0 auto; color: var(--muted); }
.agent-conversation-actions { display: flex; opacity: 0; padding-right: 5px; }
.agent-conversation-item:hover .agent-conversation-actions,
.agent-conversation-item.is-active .agent-conversation-actions { opacity: 1; }
.agent-conversation-actions button {
  width: 27px;
  height: 27px;
  border: 0;
  border-radius: 7px;
  color: var(--muted);
  background: transparent;
}
.agent-conversation-actions button:hover { color: var(--text); background: var(--surface); }
.agent-sidebar-loading,
.agent-empty-history { padding: 18px 10px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.agent-sidebar-footer {
  padding: 15px 18px 18px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
}
.agent-sidebar-footer strong { display: block; color: var(--text); margin-bottom: 8px; line-height: 1.4; }
.agent-sidebar-footer nav { display: flex; gap: 13px; }
.agent-sidebar-footer a { color: var(--muted); }
.agent-sidebar-overlay { display: none; }

.agent-main {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: 64px minmax(0, 1fr) auto;
  background: var(--background);
}
.agent-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 22px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 93%, transparent);
  backdrop-filter: blur(14px);
}
.agent-header-left,
.agent-header-actions { display: flex; align-items: center; gap: 12px; }
.agent-header-left > div { display: grid; gap: 1px; }
.agent-header-left strong { font-size: 14px; }
.agent-header-left span { color: var(--muted); font-size: 11px; }
.agent-mobile-menu { display: none; }
.agent-capability {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 9px;
  color: var(--muted);
  background: var(--surface);
  font-size: 11px;
  font-weight: 750;
}
.agent-capability i { width: 7px; height: 7px; border-radius: 50%; background: #188038; box-shadow: 0 0 0 3px rgba(24,128,56,.10); }
.agent-icon-button,
.agent-mobile-menu {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 11px;
  color: var(--text);
  background: var(--surface);
}
.agent-scroll {
  min-height: 0;
  overflow-y: auto;
  scroll-behavior: smooth;
  padding: 0 20px 36px;
}
.agent-welcome {
  width: min(860px, 100%);
  min-height: 100%;
  margin: 0 auto;
  padding: clamp(48px, 11vh, 120px) 0 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.agent-welcome[hidden] { display: none !important; }
.agent-welcome-brand img { display: block; max-width: min(420px, 78vw); max-height: 110px; object-fit: contain; }
.agent-welcome-mark { width: 72px; height: 72px; border-radius: 24px; font-size: 38px; transform: rotate(-3deg); }
.agent-welcome h1 { margin: 24px 0 10px; font-size: clamp(31px, 5vw, 48px); letter-spacing: -1.8px; }
.agent-welcome > p { max-width: 660px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.65; }
.agent-suggestions {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}
.agent-suggestions button {
  min-height: 78px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  border: 1px solid var(--border);
  border-radius: 17px;
  padding: 17px 18px;
  color: var(--text);
  background: var(--surface);
  text-align: left;
  line-height: 1.4;
  box-shadow: 0 12px 32px rgba(26,64,115,.05);
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.agent-suggestions button:hover { transform: translateY(-2px); border-color: var(--primary); box-shadow: 0 16px 36px rgba(21,101,192,.10); }
.agent-suggestions b { color: var(--primary); font-size: 17px; }
.agent-message-stream { width: min(900px, 100%); margin: 0 auto; padding: 26px 0 12px; }
.agent-message {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 13px;
  padding: 19px 0;
}
.agent-message-avatar {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  font-size: 10px;
  font-weight: 850;
  color: #fff;
  background: linear-gradient(145deg, var(--accent), var(--primary-dark));
}
.agent-message-user .agent-message-avatar { color: var(--text); background: var(--surface-soft); border: 1px solid var(--border); }
.agent-message-body { min-width: 0; }
.agent-message-label { display: flex; align-items: baseline; gap: 9px; margin-bottom: 7px; color: var(--text); font-size: 12px; font-weight: 800; }
.agent-message-label time { color: var(--muted); font-size: 10px; font-weight: 500; }
.agent-message-content {
  max-width: 100%;
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
  overflow-wrap: anywhere;
}
.agent-message-content p { margin: 0 0 13px; }
.agent-message-content p:last-child { margin-bottom: 0; }
.agent-message-content h2,
.agent-message-content h3,
.agent-message-content h4 { margin: 24px 0 9px; line-height: 1.3; letter-spacing: -.3px; }
.agent-message-content ul,
.agent-message-content ol { margin: 10px 0 15px; padding-left: 24px; }
.agent-message-content li { margin: 6px 0; }
.agent-message-content code { padding: 2px 5px; border-radius: 6px; background: var(--surface-soft); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }
.agent-message-content pre { max-width: 100%; overflow-x: auto; padding: 15px; border: 1px solid var(--border); border-radius: 13px; background: #0c1420; color: #eef4ff; }
.agent-message-user .agent-message-content {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 17px 17px 5px 17px;
  padding: 11px 14px;
  background: var(--surface);
  box-shadow: 0 8px 25px rgba(26,64,115,.05);
}
.agent-message-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.agent-message-actions button {
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 5px 8px;
  color: var(--muted);
  background: transparent;
  font-size: 10px;
}
.agent-message-actions button:hover { color: var(--text); background: var(--surface-soft); }
.agent-feedback-status { color: var(--muted); font-size: 10px; }
.agent-sources { margin-top: 15px; }
.agent-sources summary { display: inline-flex; cursor: pointer; color: var(--primary); font-size: 11px; font-weight: 800; }
.agent-source-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.agent-source-grid a {
  min-width: 0;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 9px;
  color: var(--text);
  background: var(--surface);
}
.agent-source-grid a > span { width: 22px; height: 22px; display: grid; place-items: center; border-radius: 7px; color: var(--primary); background: var(--surface-soft); font-size: 9px; font-weight: 850; }
.agent-source-grid strong,
.agent-source-grid small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.agent-source-grid strong { font-size: 11px; }
.agent-source-grid small { margin-top: 3px; color: var(--muted); font-size: 9px; }
.agent-thinking { min-height: 40px; display: flex; align-items: center; gap: 5px; color: var(--muted); }
.agent-thinking span { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); animation: agentPulse 1.1s infinite ease-in-out; }
.agent-thinking span:nth-child(2) { animation-delay: .15s; }
.agent-thinking span:nth-child(3) { animation-delay: .3s; }
.agent-thinking em { margin-left: 7px; font-size: 12px; font-style: normal; }
@keyframes agentPulse { 0%, 70%, 100% { opacity: .25; transform: translateY(0); } 35% { opacity: 1; transform: translateY(-4px); } }
.agent-global-error {
  width: min(900px, 100%);
  margin: 0 auto 20px;
  border: 1px solid rgba(180,35,24,.25);
  border-radius: 13px;
  padding: 13px 15px;
  color: var(--danger);
  background: color-mix(in srgb, var(--surface) 88%, #ffd9d4);
  font-size: 13px;
}
.agent-composer-area {
  padding: 11px 20px max(12px, env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--background) 75%, color-mix(in srgb, var(--background) 0%, transparent));
}
.agent-composer {
  width: min(900px, 100%);
  min-height: 58px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: end;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 10px 10px 10px 16px;
  background: var(--surface);
  box-shadow: 0 14px 40px rgba(26,64,115,.10);
}
.agent-composer:focus-within { border-color: var(--primary); box-shadow: 0 15px 42px rgba(21,101,192,.15); }
.agent-composer textarea {
  width: 100%;
  min-height: 35px;
  max-height: 190px;
  resize: none;
  border: 0;
  outline: 0;
  padding: 7px 0 5px;
  color: var(--text);
  background: transparent;
  line-height: 1.5;
}
.agent-composer-actions { display: flex; align-items: center; gap: 7px; }
.agent-character-count { color: var(--muted); font-size: 9px; white-space: nowrap; }
.agent-send-button,
.agent-stop-button {
  border: 0;
  font-weight: 850;
}
.agent-send-button {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(145deg, var(--accent), var(--primary-dark));
  font-size: 19px;
}
.agent-send-button:disabled { opacity: .45; cursor: not-allowed; }
.agent-stop-button { border-radius: 9px; padding: 8px 10px; color: var(--danger); background: #fff0ee; font-size: 10px; }
.agent-disclaimer { width: min(900px, 100%); margin: 7px auto 0; color: var(--muted); text-align: center; font-size: 9px; }

@media (max-width: 900px) {
  .agent-app { grid-template-columns: 1fr; }
  .agent-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(310px, 88vw);
    transform: translateX(-102%);
    transition: transform .2s ease;
    box-shadow: 25px 0 70px rgba(0,0,0,.18);
  }
  .agent-sidebar.is-open { transform: translateX(0); }
  .agent-sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 30;
    background: rgba(5, 12, 22, .42);
    backdrop-filter: blur(2px);
  }
  .agent-sidebar-overlay[hidden] { display: none; }
  .agent-mobile-menu { display: grid; }
  .agent-header { padding: 0 14px; }
}

@media (max-width: 620px) {
  .agent-main { grid-template-rows: 58px minmax(0, 1fr) auto; }
  .agent-header { gap: 8px; }
  .agent-header-actions { gap: 6px; }
  .agent-capability { display: none; }
  .agent-scroll { padding: 0 13px 28px; }
  .agent-welcome { padding: 45px 0 55px; justify-content: flex-start; }
  .agent-welcome h1 { font-size: 31px; }
  .agent-welcome > p { font-size: 13px; }
  .agent-suggestions { grid-template-columns: 1fr; gap: 8px; margin-top: 25px; }
  .agent-suggestions button { min-height: 62px; padding: 14px 15px; font-size: 13px; }
  .agent-message { grid-template-columns: 30px minmax(0, 1fr); gap: 10px; padding: 15px 0; }
  .agent-message-avatar { width: 30px; height: 30px; border-radius: 10px; }
  .agent-message-content { font-size: 14px; }
  .agent-source-grid { grid-template-columns: 1fr; }
  .agent-composer-area { padding-left: 10px; padding-right: 10px; }
  .agent-composer { border-radius: 17px; padding-left: 13px; }
  .agent-character-count { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .agent-sidebar,
  .agent-suggestions button { transition: none; }
  .agent-thinking span { animation: none; opacity: .65; }
}