/* ==================================================================
   NALAR — ruang pikir AI
   Palette: warm graphite, bone, ochre signal
   Type: Instrument Sans (UI) · Instrument Serif (display) · JetBrains Mono (data)
   ================================================================== */

/* fonts ----------------------------------------------------------- */
@font-face {
  font-family: 'Instrument Sans Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 400 700;
  src: url('/fonts/instrument-sans-latin-wght-normal.woff2') format('woff2-variations');
}
@font-face {
  font-family: 'Instrument Sans Variable';
  font-style: italic;
  font-display: swap;
  font-weight: 400 700;
  src: url('/fonts/instrument-sans-latin-wght-italic.woff2') format('woff2-variations');
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url('/fonts/instrument-serif-latin-400-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: italic;
  font-display: swap;
  font-weight: 400;
  src: url('/fonts/instrument-serif-latin-400-italic.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 800;
  src: url('/fonts/jetbrains-mono-latin-wght-normal.woff2') format('woff2-variations');
}

/* tokens ---------------------------------------------------------- */
:root {
  --bg: #0b0c0a;
  --bg-2: #0e100d;
  --sidebar: #0d0f0c;
  --panel: #151813;
  --panel-2: #1b1f18;
  --panel-3: #232820;
  --line: #272c23;
  --line-2: #373e2e;
  --text: #eceee5;
  --text-2: #a4ab9c;
  --text-3: #6f7768;
  --accent: #dda968;
  --accent-2: #f2c98b;
  --accent-soft: rgba(221, 169, 104, 0.12);
  --accent-line: rgba(221, 169, 104, 0.42);
  --user: #23281f;
  --danger: #e0856e;
  --danger-soft: rgba(224, 133, 110, 0.1);
  --ok: #94c7a5;
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.28);
  --serif: 'Instrument Serif', 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --sans: 'Instrument Sans Variable', 'Instrument Sans', -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: 'JetBrains Mono Variable', 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  --sidebar-w: 276px;
  --topbar-h: 66px;
  --ease: cubic-bezier(0.22, 0.8, 0.24, 1);
}

html[data-theme='light'] {
  --bg: #f6f4ed;
  --bg-2: #f1eee4;
  --sidebar: #edeadd;
  --panel: #fffdf7;
  --panel-2: #f7f3e8;
  --panel-3: #ece6d8;
  --line: #e2dccb;
  --line-2: #cbc3ad;
  --text: #1b1e17;
  --text-2: #5d6456;
  --text-3: #8a9182;
  --accent: #9a682b;
  --accent-2: #7d5120;
  --accent-soft: rgba(154, 104, 43, 0.11);
  --accent-line: rgba(154, 104, 43, 0.34);
  --user: #e9e3d3;
  --danger: #ae4c34;
  --danger-soft: rgba(174, 76, 52, 0.09);
  --ok: #3f7d54;
  --shadow: 0 26px 60px rgba(52, 43, 24, 0.18), 0 2px 8px rgba(52, 43, 24, 0.08);
  --shadow-soft: 0 10px 26px rgba(52, 43, 24, 0.1);
}

/* reset ----------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
html {
  color-scheme: dark;
}
html[data-theme='light'] {
  color-scheme: light;
}
body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
}
a {
  color: inherit;
}
[hidden] {
  display: none !important;
}
::selection {
  background: var(--accent-soft);
  color: var(--text);
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
hr {
  border: 0;
  border-top: 1px solid var(--line);
}

/* scrollbars ------------------------------------------------------ */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
}
*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-track {
  background: transparent;
}
*::-webkit-scrollbar-thumb {
  background: var(--line-2);
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: 99px;
}
*::-webkit-scrollbar-thumb:hover {
  background: var(--text-3);
  background-clip: content-box;
}

/* utility --------------------------------------------------------- */
.icon {
  width: 18px;
  height: 18px;
  flex: none;
  display: block;
}
.mono {
  font-family: var(--mono);
}
.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;
}
.only-mobile {
  display: none !important;
}
kbd {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 400;
  color: var(--text-3);
  border: 1px solid var(--line);
  border-bottom-color: var(--line-2);
  border-radius: 4px;
  padding: 1px 4px;
  background: color-mix(in srgb, var(--panel) 60%, transparent);
  line-height: 1.4;
}

/* grain + ambience ------------------------------------------------ */
.grain {
  position: fixed;
  inset: 0;
  z-index: 120;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.92' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}
html[data-theme='light'] .grain {
  opacity: 0.022;
  mix-blend-mode: multiply;
}

/* layout ---------------------------------------------------------- */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  height: 100dvh;
  overflow: hidden;
}
.main {
  position: relative;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background:
    radial-gradient(820px 480px at 78% -12%, var(--accent-soft), transparent 62%),
    var(--bg);
}

/* sidebar --------------------------------------------------------- */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 13px;
  min-height: 0;
  padding: 17px 13px 12px;
  background: linear-gradient(180deg, var(--sidebar), color-mix(in srgb, var(--sidebar) 88%, #000));
  border-right: 1px solid var(--line);
  position: relative;
  z-index: 30;
}
html[data-theme='light'] .sidebar {
  background: linear-gradient(180deg, var(--sidebar), color-mix(in srgb, var(--sidebar) 92%, #fff));
}
.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1px 4px 2px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text);
  min-width: 0;
}
.brand-mark {
  width: 25px;
  height: 25px;
  flex: none;
  color: var(--text-2);
}
.brand-word {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1;
  padding-top: 1px;
}
.brand-suffix {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 2px 4px;
  margin-left: 2px;
  white-space: nowrap;
}
.sidebar-close {
  display: none !important;
}

.new-chat {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  height: 41px;
  padding: 0 11px;
  background: var(--panel);
  border: 1px solid var(--line-2);
  border-radius: 11px;
  color: var(--text);
  font-size: 12.8px;
  font-weight: 550;
  letter-spacing: -0.005em;
  transition: background 0.16s, border-color 0.16s, transform 0.16s;
}
.new-chat .icon {
  width: 16px;
  height: 16px;
  color: var(--accent);
}
.new-chat span {
  flex: 1;
  text-align: left;
}
.new-chat:hover {
  background: var(--panel-2);
  border-color: var(--accent-line);
}
.new-chat:active {
  transform: scale(0.99);
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-wrap .icon {
  position: absolute;
  left: 10px;
  width: 14px;
  height: 14px;
  color: var(--text-3);
  pointer-events: none;
}
.search-wrap input {
  width: 100%;
  height: 34px;
  padding: 0 10px 0 31px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 12.2px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}
.search-wrap input::placeholder {
  color: var(--text-3);
}
.search-wrap input:focus {
  border-color: var(--accent-line);
  background: var(--panel);
}
.search-wrap input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

.conv-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  margin: 0 -5px;
  padding: 0 5px;
}
.conv-group-label {
  position: sticky;
  top: 0;
  z-index: 1;
  margin: 0;
  padding: 9px 8px 5px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-3);
  background: linear-gradient(var(--sidebar) 68%, transparent);
}
.conv-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  margin-bottom: 1px;
  padding: 0;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  transition: background 0.14s, border-color 0.14s;
}
.conv-item:hover {
  background: color-mix(in srgb, var(--panel) 75%, transparent);
}
.conv-item.is-active {
  background: var(--panel);
  border-color: var(--line);
}
.conv-item.is-active::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 9px;
  bottom: 9px;
  width: 2px;
  border-radius: 2px;
  background: var(--accent);
}
.conv-open {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 8px 8px 10px;
  border: 0;
  background: none;
  border-radius: 8px;
  color: var(--text-2);
  text-align: left;
  font-size: 12.6px;
  line-height: 1.35;
}
.conv-item.is-active .conv-open,
.conv-item:hover .conv-open {
  color: var(--text);
}
.conv-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.conv-pin {
  flex: none;
  display: grid;
  place-items: center;
  color: var(--accent);
}
.conv-pin .icon {
  width: 12px;
  height: 12px;
}
.conv-more {
  opacity: 0;
  width: 26px;
  height: 26px;
  margin-right: 4px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-3);
  display: grid;
  place-items: center;
  transition: opacity 0.12s, background 0.12s, color 0.12s;
}
.conv-more .icon {
  width: 14px;
  height: 14px;
}
.conv-item:hover .conv-more,
.conv-item.is-active .conv-more,
.conv-more:focus-visible {
  opacity: 1;
}
.conv-more:hover {
  background: var(--panel-3);
  color: var(--text);
}
.conv-empty {
  display: grid;
  justify-items: center;
  gap: 9px;
  padding: 42px 18px;
  text-align: center;
  color: var(--text-3);
}
.conv-empty .icon {
  width: 22px;
  height: 22px;
  opacity: 0.6;
}
.conv-empty p {
  margin: 0;
  font-size: 11.5px;
  line-height: 1.6;
}
.sidebar-foot {
  margin-top: auto;
  padding-top: 9px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 9px;
}
.side-action {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 7px 8px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-2);
  font-size: 12.2px;
  text-align: left;
}
.side-action .icon {
  width: 15px;
  height: 15px;
  color: var(--text-3);
}
.side-action:hover {
  background: var(--panel);
  color: var(--text);
}
.side-action:hover .icon {
  color: var(--accent);
}
.side-source {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.02em;
  color: var(--text-3);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.side-source .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--ok) 18%, transparent);
  flex: none;
}
.side-source.is-error .dot {
  background: var(--danger);
}
.sidebar-scrim {
  display: none;
}

/* topbar ---------------------------------------------------------- */
.topbar {
  flex: none;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 0 22px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 20;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.chat-title-wrap {
  min-width: 0;
  display: grid;
  gap: 2px;
}
.chat-title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 46vw;
}
.chat-sub {
  margin: 0;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.03em;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 46vw;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
}
.provider-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 55%, transparent);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.03em;
  color: var(--text-2);
  max-width: 150px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.provider-pill .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 2.5px color-mix(in srgb, var(--ok) 16%, transparent);
  flex: none;
}
.provider-pill.is-error .dot {
  background: var(--danger);
  box-shadow: 0 0 0 2.5px color-mix(in srgb, var(--danger) 16%, transparent);
}
.model-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  max-width: 250px;
  padding: 0 9px 0 10px;
  border: 1px solid var(--line-2);
  border-radius: 9px;
  background: var(--panel);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.model-chip:hover:not(:disabled) {
  background: var(--panel-2);
  border-color: var(--accent-line);
  color: var(--text);
}
.model-chip:disabled {
  opacity: 0.55;
  cursor: wait;
}
.model-chip-orb {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
  background: conic-gradient(from 210deg, var(--accent), var(--accent-2), var(--accent));
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.model-chip.is-live .model-chip-orb {
  animation: pulse 1.6s ease-in-out infinite;
}
.model-chip-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.model-chip .icon {
  width: 13px;
  height: 13px;
  color: var(--text-3);
}
.icon-btn {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--text-2);
  transition: background 0.14s, color 0.14s, border-color 0.14s;
}
.icon-btn .icon {
  width: 17px;
  height: 17px;
}
.icon-btn:hover {
  background: var(--panel);
  border-color: var(--line);
  color: var(--text);
}

/* chat scroll ----------------------------------------------------- */
.chat-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
}
.chat-inner {
  width: 100%;
  max-width: 880px;
  min-height: 100%;
  margin: 0 auto;
  padding: 32px 30px 30px;
}
.boot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding-top: 18vh;
  color: var(--text-3);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
}
.boot-orb {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  color: var(--text-2);
  background: var(--panel);
  animation: breathe 2.2s ease-in-out infinite;
}
.boot-orb .brand-mark {
  width: 20px;
  height: 20px;
}

/* welcome --------------------------------------------------------- */
.welcome {
  max-width: 790px;
  padding: clamp(28px, 8vh, 90px) 0 26px;
  animation: riseIn 0.5s var(--ease) both;
}
.welcome-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.welcome-eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--accent-line);
}
.welcome h2 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 5.5vw, 62px);
  line-height: 0.98;
  letter-spacing: -0.018em;
  color: var(--text);
  text-wrap: balance;
}
.welcome h2 em {
  font-style: italic;
  color: var(--accent-2);
}
.welcome-sub {
  max-width: 535px;
  margin: 0 0 30px;
  font-size: 13.8px;
  line-height: 1.7;
  color: var(--text-2);
}
.welcome-sub .mono {
  font-size: 0.92em;
  color: var(--text-2);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 4px;
}
.welcome-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  max-width: 720px;
}
.prompt-card {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 14px;
  gap: 11px;
  align-items: start;
  padding: 14px 14px 13px;
  text-align: left;
  background: color-mix(in srgb, var(--panel) 52%, transparent);
  border: 1px solid var(--line);
  border-radius: 13px;
  color: var(--text);
  transition: background 0.18s, border-color 0.18s, transform 0.18s;
}
.prompt-card:hover {
  background: var(--panel);
  border-color: var(--accent-line);
  transform: translateY(-1px);
}
.prompt-icon {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--accent-soft);
  color: var(--accent);
}
.prompt-icon .icon {
  width: 15px;
  height: 15px;
}
.prompt-card h3 {
  margin: 1px 0 3px;
  font-size: 12.6px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.prompt-card p {
  margin: 0;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--text-3);
}
.prompt-go {
  margin-top: 3px;
  color: var(--text-3);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.18s, transform 0.18s, color 0.18s;
}
.prompt-go .icon {
  width: 13px;
  height: 13px;
}
.prompt-card:hover .prompt-go {
  opacity: 1;
  transform: none;
  color: var(--accent);
}
.welcome-meta {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
  margin-top: 24px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.02em;
  color: var(--text-3);
}
.welcome-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-3);
  opacity: 0.6;
}
.welcome-meta strong {
  font-weight: 500;
  color: var(--text-2);
}

/* messages -------------------------------------------------------- */
.messages {
  position: relative;
  padding: 4px 0 14px;
}
.messages::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 21px;
  bottom: 26px;
  width: 1px;
  background: linear-gradient(var(--line-2), var(--line) 55%, transparent 96%);
  opacity: 0.85;
}
.msg {
  position: relative;
  margin: 0 0 30px;
  animation: msgIn 0.32s var(--ease) both;
}
.msg:last-child {
  margin-bottom: 12px;
}
.msg--assistant {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
}
.msg-avatar {
  position: relative;
  z-index: 1;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: var(--bg);
  color: var(--text-3);
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.msg-avatar .brand-mark {
  width: 16px;
  height: 16px;
}
.msg--assistant.is-streaming .msg-avatar {
  color: var(--accent-2);
  border-color: var(--accent-line);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.msg--assistant.is-streaming .msg-avatar::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--accent-line);
  animation: ring 2s ease-out infinite;
}
.msg-body {
  min-width: 0;
}
.msg-head {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 24px;
  margin: 0 0 7px;
}
.msg-author {
  font-size: 12.4px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.msg-model {
  font-family: var(--mono);
  font-size: 8.8px;
  letter-spacing: 0.01em;
  color: var(--text-3);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.5px 4px;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.msg-time {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-3);
  letter-spacing: 0.03em;
}

/* user turn */
.msg--user {
  display: flex;
  justify-content: flex-end;
  padding-left: 56px;
}
.msg--user .msg-body {
  max-width: min(88%, 640px);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
}
.msg-bubble {
  padding: 10px 14px;
  background: var(--user);
  border: 1px solid var(--line);
  border-radius: 17px 17px 5px 17px;
  font-size: 14.2px;
  line-height: 1.62;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.msg-bubble:empty {
  display: none;
}
.msg-images {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
  margin-bottom: 6px;
}
.msg-image {
  width: 132px;
  height: 132px;
  object-fit: cover;
  border-radius: 11px;
  border: 1px solid var(--line-2);
  cursor: zoom-in;
  transition: border-color 0.15s, transform 0.15s;
}
.msg-image:hover {
  border-color: var(--accent-line);
  transform: scale(1.012);
}
.msg-files {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  margin-bottom: 6px;
}
.file-card {
  display: flex;
  align-items: center;
  gap: 10px;
  width: min(340px, 100%);
  padding: 9px 11px;
  border-radius: 12px;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}
.file-card:hover {
  border-color: var(--accent-line);
  background: var(--panel-3);
  transform: translateY(-1px);
}
.file-card.is-missing {
  opacity: 0.62;
  border-style: dashed;
}
.file-card-icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  flex: none;
  border-radius: 9px;
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  color: var(--accent);
}
.file-card-icon .icon {
  width: 16px;
  height: 16px;
}
.file-card-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
  line-height: 1.35;
}
.file-card-name {
  font-size: 12.8px;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.file-card-meta {
  font-family: var(--mono);
  font-size: 9.6px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-3);
}
.file-card-dl {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex: none;
  padding-left: 8px;
  border-left: 1px solid var(--line-2);
  font-size: 10.6px;
  letter-spacing: 0.02em;
  color: var(--text-2);
}
.file-card-dl .icon {
  width: 13px;
  height: 13px;
}
.file-card:hover .file-card-dl {
  color: var(--accent);
}
.file-card--generated {
  align-items: center;
  background: linear-gradient(180deg, var(--panel-3), var(--panel-2));
}
button.file-card-dl {
  border: 0;
  border-left: 1px solid var(--line-2);
  border-radius: 0;
  background: none;
  font: inherit;
  font-size: 10.6px;
  cursor: pointer;
}
button.file-card-dl:hover {
  color: var(--accent);
}
.file-card-act {
  flex: none;
  padding: 4px 9px;
  border-radius: 8px;
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--text-2);
  font: inherit;
  font-size: 10.6px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.file-card-act:hover {
  border-color: var(--accent-line);
  color: var(--accent);
}
.file-preview {
  margin: 0;
  padding: 14px 16px;
  max-height: min(58vh, 520px);
  overflow: auto;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: var(--panel-2);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-1);
  white-space: pre-wrap;
  word-break: break-word;
}
.msg--user .msg-actions {
  justify-content: flex-end;
}

/* actions */
.msg-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-top: 7px;
  opacity: 0;
  transition: opacity 0.15s;
}
.msg:hover .msg-actions,
.msg:focus-within .msg-actions,
.msg.is-last .msg-actions {
  opacity: 1;
}
.msg-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 25px;
  padding: 0 7px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--text-3);
  font-size: 10.4px;
  line-height: 1;
  transition: background 0.13s, border-color 0.13s, color 0.13s;
}
.msg-action .icon {
  width: 13px;
  height: 13px;
}
.msg-action:hover {
  background: var(--panel);
  border-color: var(--line);
  color: var(--text);
}
.msg-action.is-danger:hover {
  color: var(--danger);
}

/* reasoning */
.reasoning {
  margin: 0 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 48%, transparent);
  overflow: hidden;
}
.reasoning summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  list-style: none;
  cursor: pointer;
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  user-select: none;
}
.reasoning summary::-webkit-details-marker {
  display: none;
}
.reasoning-summary-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.reasoning-orb {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  flex: none;
}
.reasoning[data-live='true'] .reasoning-orb {
  animation: pulse 1.4s ease-in-out infinite;
}
.reasoning-state {
  margin-left: auto;
  font-size: 8.6px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}
.reasoning-body {
  margin: 0;
  padding: 10px 12px 11px;
  border-top: 1px solid var(--line);
  max-height: 240px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 10.6px;
  line-height: 1.7;
  color: var(--text-3);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* markdown -------------------------------------------------------- */
.markdown {
  font-size: 14.7px;
  line-height: 1.72;
  color: var(--text);
  overflow-wrap: anywhere;
}
.markdown > :first-child {
  margin-top: 0 !important;
}
.markdown > :last-child {
  margin-bottom: 0 !important;
}
.markdown p {
  margin: 0 0 13px;
}
.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4 {
  margin: 23px 0 9px;
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.012em;
  color: var(--text);
}
.markdown h1 {
  font-size: 21px;
}
.markdown h2 {
  font-size: 17.5px;
}
.markdown h3 {
  font-size: 15.2px;
}
.markdown h4 {
  font-size: 14px;
}
.markdown ul,
.markdown ol {
  margin: 0 0 13px;
  padding-left: 21px;
}
.markdown li {
  margin: 4px 0;
}
.markdown li::marker {
  color: var(--accent);
}
.markdown li > ul,
.markdown li > ol {
  margin: 4px 0 5px;
}
.markdown strong {
  font-weight: 650;
  color: var(--text);
}
.markdown em {
  font-style: italic;
}
.markdown a {
  color: var(--accent-2);
  text-decoration: underline;
  text-decoration-color: var(--accent-line);
  text-underline-offset: 2px;
}
.markdown a:hover {
  text-decoration-color: var(--accent);
}
.markdown blockquote {
  margin: 14px 0;
  padding: 4px 0 4px 14px;
  border-left: 2px solid var(--accent-line);
  color: var(--text-2);
}
.markdown blockquote > :last-child {
  margin-bottom: 0;
}
.markdown hr {
  margin: 20px 0;
}
.markdown img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--line);
}
.markdown code:not(pre code) {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 4px;
  color: var(--accent-2);
  white-space: break-spaces;
}
.markdown kbd {
  font-size: 0.82em;
}
.markdown .table-wrap {
  margin: 14px 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.markdown table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.55;
}
.markdown th,
.markdown td {
  padding: 8px 11px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.markdown th {
  background: var(--panel-2);
  font-weight: 600;
  font-size: 12.4px;
}
.markdown tr:last-child td {
  border-bottom: 0;
}
.markdown tbody tr:hover {
  background: color-mix(in srgb, var(--panel) 55%, transparent);
}

/* code blocks */
.code-block {
  margin: 14px 0;
  border: 1px solid var(--line);
  border-radius: 11px;
  overflow: hidden;
  background: color-mix(in srgb, var(--bg-2) 82%, var(--panel));
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 10px 7px 12px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 70%, transparent);
}
.code-lang {
  font-family: var(--mono);
  font-size: 8.8px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-3);
}
.code-copy {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 3px 6px;
  background: transparent;
  color: var(--text-3);
  font-family: var(--mono);
  font-size: 8.8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.code-copy .icon {
  width: 11px;
  height: 11px;
}
.code-copy:hover {
  color: var(--text);
  border-color: var(--line);
  background: var(--panel-2);
}
.code-block pre {
  margin: 0;
  padding: 13px 14px 15px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 12.3px;
  line-height: 1.68;
  tab-size: 2;
}
.code-block pre code {
  font-family: inherit;
  background: none;
  padding: 0;
  border: 0;
  font-size: inherit;
}
.code-block .hljs {
  background: transparent !important;
  padding: 0 !important;
  overflow: visible;
}

/* streaming caret + typing */
.msg-content.is-streaming::after {
  content: '';
  display: inline-block;
  width: 7px;
  height: 14px;
  margin-left: 3px;
  vertical-align: -2px;
  border-radius: 1px;
  background: var(--accent);
  animation: blink 1.05s steps(2, start) infinite;
}
.typing {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 24px;
}
.typing i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-3);
  animation: blink 1.2s ease-in-out infinite;
}
.typing i:nth-child(2) {
  animation-delay: 0.16s;
}
.typing i:nth-child(3) {
  animation-delay: 0.32s;
}

/* error card */
.error-card {
  display: flex;
  gap: 10px;
  margin: 4px 0 2px;
  padding: 11px 13px;
  border: 1px solid color-mix(in srgb, var(--danger) 38%, var(--line));
  border-radius: 11px;
  background: var(--danger-soft);
  color: var(--text-2);
  font-size: 12.4px;
  line-height: 1.6;
}
.error-card > .icon {
  width: 16px;
  height: 16px;
  margin-top: 1px;
  color: var(--danger);
  flex: none;
}
.error-card strong {
  display: block;
  margin-bottom: 2px;
  color: var(--text);
  font-weight: 600;
  font-size: 12.6px;
}
.error-card .error-detail {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--text-3);
  word-break: break-word;
}
.error-card .error-actions {
  margin-top: 8px;
}
.error-card .btn {
  height: 27px;
  padding: 0 9px;
  font-size: 11px;
}

/* usage */
.msg-usage {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 7px;
  font-family: var(--mono);
  font-size: 8.8px;
  letter-spacing: 0.02em;
  color: var(--text-3);
}
.msg-usage .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-3);
  opacity: 0.6;
}
.msg-usage .warn {
  color: var(--danger);
}

/* scroll to bottom */
.scroll-bottom {
  position: sticky;
  bottom: 14px;
  z-index: 6;
  width: 33px;
  height: 33px;
  margin-left: calc(100% - 58px);
  display: grid;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  background: var(--panel);
  color: var(--text-2);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.15s, color 0.15s, transform 0.15s;
}
.scroll-bottom:hover {
  border-color: var(--accent-line);
  color: var(--accent);
  transform: translateY(-1px);
}
.scroll-bottom .icon {
  width: 15px;
  height: 15px;
}

/* composer -------------------------------------------------------- */
.composer-dock {
  flex: none;
  position: relative;
  z-index: 10;
  padding: 8px clamp(14px, 3.2vw, 30px) 9px;
  background: linear-gradient(
    to top,
    var(--bg) 0%,
    var(--bg) 58%,
    color-mix(in srgb, var(--bg) 72%, transparent) 82%,
    transparent 100%
  );
}
.composer {
  position: relative;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 8px 9px 7px 11px;
  border: 1px solid var(--line-2);
  border-radius: 19px;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.18s, box-shadow 0.18s;
  overflow: hidden;
}
.composer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  opacity: 0;
  background: linear-gradient(90deg, transparent, var(--accent-2), transparent);
  background-size: 42% 100%;
  background-repeat: no-repeat;
  transition: opacity 0.3s;
}
.composer.is-streaming::before {
  opacity: 0.95;
  animation: beam 2.1s linear infinite;
}
.composer:focus-within {
  border-color: color-mix(in srgb, var(--accent) 58%, var(--line-2));
  box-shadow: var(--shadow-soft), 0 0 0 3px var(--accent-soft);
}
.composer-main {
  display: flex;
  align-items: flex-end;
  gap: 2px;
}
.composer-attach {
  width: 31px;
  height: 31px;
  margin-bottom: 1px;
  flex: none;
  color: var(--text-3);
}
.composer-attach .icon {
  width: 17px;
  height: 17px;
}
.composer-attach:hover {
  color: var(--accent);
}
.composer-web {
  position: relative;
  width: 31px;
  height: 31px;
  margin-bottom: 1px;
  flex: none;
  color: var(--text-3);
  transition: color 0.15s, background 0.15s;
}
.composer-web .icon {
  width: 17px;
  height: 17px;
}
.composer-web:hover {
  color: var(--accent);
}
.composer-web.is-active {
  color: var(--accent);
  background: color-mix(in oklab, var(--accent) 12%, transparent);
}
.composer-web-dot {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.15s;
}
.composer-web.is-active .composer-web-dot {
  opacity: 1;
}
.search-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  color: var(--text-2);
  font-size: 12.2px;
}
.search-status .icon {
  width: 14px;
  height: 14px;
  color: var(--accent);
  animation: spin 2.4s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.msg-sources {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
}
.sources-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10.4px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}
.sources-label .icon {
  width: 13px;
  height: 13px;
}
.source-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 240px;
  padding: 4px 9px 4px 5px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  color: var(--text-2);
  font-size: 11.4px;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.source-chip:hover {
  border-color: var(--accent-line);
  background: var(--panel-3);
  color: var(--text-1);
}
.source-num {
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  flex: none;
  border-radius: 50%;
  background: color-mix(in oklab, var(--accent) 16%, transparent);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 9.5px;
}
.source-host {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#input {
  flex: 1;
  min-width: 0;
  min-height: 30px;
  max-height: 210px;
  margin: 0;
  padding: 7px 7px 5px;
  border: 0;
  outline: 0;
  resize: none;
  background: transparent;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14.4px;
  line-height: 1.55;
  scrollbar-width: thin;
}
#input::placeholder {
  color: var(--text-3);
}
.send-btn {
  flex: none;
  width: 33px;
  height: 33px;
  margin: 1px 0 0 3px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 50%;
  background: var(--accent);
  color: #1a1206;
  box-shadow: 0 2px 10px color-mix(in srgb, var(--accent) 24%, transparent);
  transition: background 0.15s, transform 0.15s, opacity 0.15s, box-shadow 0.15s;
}
.send-btn .icon {
  width: 17px;
  height: 17px;
}
.send-btn .icon-stop {
  width: 14px;
  height: 14px;
}
.send-btn:hover:not(:disabled) {
  background: var(--accent-2);
  transform: translateY(-1px);
}
.send-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.97);
}
.send-btn:disabled {
  background: var(--panel-3);
  color: var(--text-3);
  box-shadow: none;
  cursor: default;
}
.send-btn.is-stop {
  background: var(--accent);
  color: #1a1206;
  animation: breathe 2s ease-in-out infinite;
}
.composer-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 3px 3px 1px 2px;
}
.composer-hint {
  font-size: 9.6px;
  color: var(--text-3);
  white-space: nowrap;
}
.composer-hint kbd {
  font-size: 8.6px;
  padding: 0 3px;
  border-color: var(--line);
  background: transparent;
}
.composer-model {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.02em;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 52%;
  text-align: right;
  transition: color 0.2s;
}
.composer-model.is-warn {
  color: var(--accent);
}
.composer-model.is-over {
  color: var(--danger);
}
.attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 3px 3px 8px 3px;
}
.attachment--image {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 9px;
  overflow: hidden;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
}
.attachment--image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.attachment--file {
  position: relative;
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: 268px;
  padding: 7px 30px 7px 9px;
  border-radius: 11px;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
}
.attachment-icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  flex: none;
  border-radius: 8px;
  background: var(--panel-3);
  color: var(--accent);
}
.attachment-icon .icon {
  width: 16px;
  height: 16px;
}
.attachment-info {
  display: flex;
  min-width: 0;
  flex-direction: column;
  line-height: 1.3;
}
.attachment-name {
  font-size: 12.4px;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.attachment-meta {
  font-family: var(--mono);
  font-size: 9.6px;
  letter-spacing: 0.04em;
  color: var(--text-3);
}
.attachment-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 16px;
  height: 16px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: rgba(8, 9, 7, 0.76);
  color: #f2f2ec;
  backdrop-filter: blur(4px);
}
.attachment-remove .icon {
  width: 10px;
  height: 10px;
}

/* popovers -------------------------------------------------------- */
.popover {
  position: fixed;
  z-index: 75;
  width: 392px;
  max-width: calc(100vw - 24px);
  background: var(--panel);
  border: 1px solid var(--line-2);
  border-radius: 15px;
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: popIn 0.15s var(--ease);
}
.popover-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 14px 8px 16px;
}
.popover-head h2 {
  margin: 0;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.012em;
}
.eyebrow {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: 8.8px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.popover-head .icon-btn {
  width: 27px;
  height: 27px;
  margin-top: -2px;
}
.popover-search {
  position: relative;
  margin: 1px 12px 7px;
}
.popover-search .icon {
  position: absolute;
  left: 9px;
  top: 50%;
  width: 13px;
  height: 13px;
  transform: translateY(-50%);
  color: var(--text-3);
  pointer-events: none;
}
.popover-search input {
  width: 100%;
  height: 32px;
  padding: 0 9px 0 29px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-2);
  color: var(--text);
  font-size: 12px;
  outline: 0;
}
.popover-search input:focus {
  border-color: var(--accent-line);
}
.popover-search input::placeholder {
  color: var(--text-3);
}
.popover-search input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}
.model-list {
  max-height: 342px;
  overflow-y: auto;
  padding: 1px 8px 7px;
}
.model-group-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 8px 6px;
  font-family: var(--mono);
  font-size: 8.6px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-3);
}
.model-group-label span:last-child {
  letter-spacing: 0.02em;
  text-transform: none;
  opacity: 0.72;
  font-size: 8.2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.model-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
  padding: 9px 9px;
  margin-bottom: 1px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  text-align: left;
  color: var(--text-2);
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.model-item:hover {
  background: var(--panel-2);
  color: var(--text);
}
.model-item.is-selected {
  background: var(--accent-soft);
  border-color: var(--accent-line);
  color: var(--text);
}
.model-item-main {
  flex: 1;
  min-width: 0;
}
.model-item-name {
  display: block;
  font-size: 12.2px;
  font-weight: 600;
  letter-spacing: -0.005em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.model-item-id {
  display: block;
  margin-top: 2px;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.model-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 5px;
}
.badge {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-3);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1px 4px;
  line-height: 1.5;
}
.badge--vision {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}
.model-check {
  margin-top: 3px;
  color: var(--accent);
}
.model-check .icon {
  width: 14px;
  height: 14px;
}
.popover-foot {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-2) 45%, transparent);
  font-family: var(--mono);
  font-size: 8.6px;
  letter-spacing: 0.02em;
  color: var(--text-3);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.popover-foot .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-3);
  opacity: 0.6;
  flex: none;
}
.model-empty {
  padding: 22px 12px;
  text-align: center;
  color: var(--text-3);
  font-size: 11.5px;
  line-height: 1.6;
}

/* context menu */
.menu-popover {
  width: 196px;
  padding: 5px;
  border-radius: 11px;
}
.menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 7px 9px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-2);
  font-size: 11.8px;
  text-align: left;
}
.menu-item .icon {
  width: 14px;
  height: 14px;
  color: var(--text-3);
}
.menu-item:hover {
  background: var(--panel-2);
  color: var(--text);
}
.menu-item:hover .icon {
  color: var(--text-2);
}
.menu-item.is-danger {
  color: var(--danger);
}
.menu-item.is-danger .icon {
  color: var(--danger);
}
.menu-item.is-danger:hover {
  background: var(--danger-soft);
}
.menu-sep {
  height: 1px;
  margin: 4px 5px;
  background: var(--line);
}

/* modal ----------------------------------------------------------- */
.modal-root {
  position: fixed;
  inset: 0;
  z-index: 85;
  display: grid;
  place-items: center;
  padding: 18px;
}
.modal-scrim {
  position: absolute;
  inset: 0;
  background: rgba(4, 5, 3, 0.64);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fadeIn 0.16s ease both;
}
html[data-theme='light'] .modal-scrim {
  background: rgba(54, 45, 26, 0.34);
}
.modal-card {
  position: relative;
  width: min(560px, 100%);
  max-height: 88dvh;
  overflow-y: auto;
  padding: 22px;
  border: 1px solid var(--line-2);
  border-radius: 17px;
  background: var(--panel);
  box-shadow: var(--shadow);
  animation: modalIn 0.2s var(--ease) both;
}
.modal-card--wide {
  width: min(640px, 100%);
}
.modal-card h2 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.modal-card > p.modal-sub {
  margin: 0 0 16px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-3);
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
}
.modal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 22px;
}
.modal-actions .spacer {
  flex: 1;
}
.field {
  margin: 15px 0;
}
.field-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
}
.field-label .value {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  color: var(--accent);
}
.field-help {
  margin: 5px 0 0;
  font-size: 10.6px;
  line-height: 1.55;
  color: var(--text-3);
}
.data-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.data-actions .btn {
  flex: 1;
  min-width: 130px;
}
.input,
.textarea,
.select {
  width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-2);
  color: var(--text);
  font-family: var(--sans);
  font-size: 12.6px;
  outline: 0;
  transition: border-color 0.15s;
}
.input:focus,
.textarea:focus,
.select:focus {
  border-color: var(--accent-line);
}
.textarea {
  min-height: 106px;
  line-height: 1.6;
  resize: vertical;
}
.segmented {
  display: flex;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-2);
}
.segmented button {
  flex: 1;
  padding: 6px 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-2);
  font-size: 11.5px;
  transition: background 0.14s, color 0.14s;
}
.segmented button.is-active {
  background: var(--panel-3);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
}
.range-row {
  display: flex;
  align-items: center;
  gap: 11px;
}
input[type='range'] {
  flex: 1;
  accent-color: var(--accent);
  height: 18px;
}
.info-box {
  margin: 16px 0 0;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-2);
  font-size: 11px;
  line-height: 1.65;
  color: var(--text-2);
}
.info-box .info-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 3px 0;
}
.info-box .info-row + .info-row {
  border-top: 1px solid var(--line);
  margin-top: 3px;
  padding-top: 6px;
}
.info-box .info-key {
  color: var(--text-3);
  flex: none;
}
.info-box .info-val {
  font-family: var(--mono);
  font-size: 9.8px;
  text-align: right;
  overflow-wrap: anywhere;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 33px;
  padding: 0 13px;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  transition: background 0.14s, border-color 0.14s, color 0.14s;
}
.btn .icon {
  width: 14px;
  height: 14px;
}
.btn:hover {
  background: var(--panel-3);
  border-color: var(--line-2);
}
.btn--primary {
  background: var(--accent);
  border-color: transparent;
  color: #1a1206;
  font-weight: 600;
}
.btn--primary:hover {
  background: var(--accent-2);
}
.btn--ghost {
  background: transparent;
}
.btn--danger {
  background: transparent;
  border-color: color-mix(in srgb, var(--danger) 40%, var(--line));
  color: var(--danger);
}
.btn--danger:hover {
  background: var(--danger-soft);
}

/* lightbox */
.lightbox {
  position: relative;
  max-width: min(92vw, 900px);
  max-height: 86dvh;
  animation: modalIn 0.2s var(--ease) both;
}
.lightbox-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.lightbox-figure figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.lightbox-name {
  font-family: var(--mono);
  font-size: 10.4px;
  letter-spacing: 0.05em;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lightbox img {
  display: block;
  max-width: 100%;
  max-height: 86dvh;
  border-radius: 12px;
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow);
  background: var(--panel);
}
.lightbox .modal-close {
  top: -12px;
  right: -12px;
  background: var(--panel);
  border-color: var(--line-2);
  width: 32px;
  height: 32px;
}

/* toast ----------------------------------------------------------- */
.toast-wrap {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 95;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  pointer-events: none;
  width: max-content;
  max-width: calc(100vw - 24px);
}
.toast {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  padding: 8px 13px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: var(--panel-3);
  color: var(--text);
  box-shadow: var(--shadow-soft);
  font-size: 11.4px;
  line-height: 1.4;
  animation: toastIn 0.22s var(--ease) both;
}
.toast .icon {
  width: 13px;
  height: 13px;
  color: var(--accent);
  flex: none;
}
.toast.is-error {
  border-color: color-mix(in srgb, var(--danger) 45%, var(--line));
  color: var(--text);
}
.toast.is-error .icon {
  color: var(--danger);
}
.toast.is-leaving {
  animation: toastOut 0.18s ease both;
}

/* drag & drop ----------------------------------------------------- */
.drop-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(4, 5, 3, 0.7);
  backdrop-filter: blur(5px);
}
.drop-card {
  width: min(440px, 100%);
  padding: 44px 28px;
  border: 1.5px dashed var(--accent-line);
  border-radius: 18px;
  background: var(--panel);
  text-align: center;
  color: var(--text-2);
  box-shadow: var(--shadow);
}
.drop-card .icon {
  width: 34px;
  height: 34px;
  margin: 0 auto 11px;
  color: var(--accent);
}
.drop-card p {
  margin: 0 0 4px;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
}
.drop-card span {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  color: var(--text-3);
}

/* animations ------------------------------------------------------ */
@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.2;
  }
}
@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(0.8);
    opacity: 0.55;
  }
}
@keyframes breathe {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 var(--accent-soft);
  }
  50% {
    transform: scale(1.04);
    box-shadow: 0 0 0 7px transparent;
  }
}
@keyframes ring {
  0% {
    transform: scale(0.92);
    opacity: 0.7;
  }
  75%,
  100% {
    transform: scale(1.38);
    opacity: 0;
  }
}
@keyframes beam {
  from {
    background-position: -60% 0;
  }
  to {
    background-position: 160% 0;
  }
}
@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes msgIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes popIn {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes toastOut {
  from {
    opacity: 1;
    transform: none;
  }
  to {
    opacity: 0;
    transform: translateY(6px);
  }
}

/* responsive ------------------------------------------------------ */
@media (max-width: 980px) {
  :root {
    --topbar-h: 61px;
  }
  .app {
    grid-template-columns: minmax(0, 1fr);
  }
  .only-mobile {
    display: grid !important;
  }
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(302px, 86vw);
    transform: translateX(-103%);
    transition: transform 0.26s var(--ease);
    z-index: 80;
    box-shadow: var(--shadow);
  }
  .sidebar.is-open {
    transform: none;
  }
  .sidebar-close {
    display: grid !important;
  }
  .sidebar-scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 70;
    background: rgba(0, 0, 0, 0.52);
    backdrop-filter: blur(2px);
  }
  .provider-pill {
    display: none;
  }
  .topbar {
    padding: 0 13px;
    gap: 8px;
  }
  .topbar-right {
    gap: 5px;
  }
  .chat-title {
    max-width: 40vw;
  }
  .chat-sub {
    max-width: 40vw;
  }
  .model-chip {
    max-width: 190px;
  }
  .model-chip-name {
    max-width: 130px;
  }
  .chat-inner {
    padding: 24px 16px 26px;
  }
  .welcome {
    padding-top: clamp(22px, 5.5vh, 54px);
  }
  .welcome h2 {
    font-size: clamp(37px, 9vw, 49px);
  }
  .welcome-grid {
    grid-template-columns: 1fr;
    max-width: none;
  }
  .msg--user {
    padding-left: 30px;
  }
  .msg--assistant {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 11px;
  }
  .msg-avatar {
    width: 30px;
    height: 30px;
  }
  .msg-avatar .brand-mark {
    width: 14px;
    height: 14px;
  }
  .messages::before {
    left: 14px;
  }
  .msg-head {
    margin-bottom: 6px;
  }
  .msg-model {
    max-width: 130px;
  }
  .composer-dock {
    padding: 7px 10px 8px;
  }
  .composer {
    border-radius: 17px;
  }
  .scroll-bottom {
    margin-left: calc(100% - 50px);
  }
  .model-popover {
    top: auto !important;
    left: 10px !important;
    right: 10px !important;
    bottom: 10px;
    width: auto;
    max-width: none;
    max-height: 78dvh;
  }
  .model-list {
    max-height: 44dvh;
  }
  .toast-wrap {
    bottom: 104px;
  }
  .modal-root {
    padding: 12px;
  }
  .modal-card {
    padding: 19px;
  }
}

@media (max-width: 560px) {
  .brand-suffix {
    display: none;
  }
  .chat-sub {
    display: none;
  }
  .model-chip {
    max-width: 160px;
    padding: 0 8px;
  }
  .model-chip-name {
    max-width: 94px;
  }
  .theme-btn-desktop {
    display: none;
  }
  .welcome-sub {
    font-size: 13px;
  }
  .welcome-meta {
    gap: 5px;
    font-size: 8.8px;
  }
  .msg--user .msg-body {
    max-width: 94%;
  }
  .msg-bubble {
    font-size: 13.8px;
  }
  .msg-image {
    width: 104px;
    height: 104px;
  }
  .composer-hint {
    display: none;
  }
  .composer-model {
    max-width: 100%;
    text-align: left;
  }
  .composer-foot {
    justify-content: flex-end;
  }
  .msg-actions {
    opacity: 1;
  }
  .msg-time {
    display: none;
  }
  .markdown {
    font-size: 14.3px;
  }
  .code-block pre {
    font-size: 11.8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* post-build fixes ------------------------------------------------ */
.modal-card.lightbox {
  width: auto;
  max-width: none;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
}
.welcome .error-card {
  margin-top: 20px;
  max-width: 720px;
}
.segmented button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.segmented button .icon {
  width: 13px;
  height: 13px;
}
.msg.is-streaming .msg-actions {
  opacity: 0;
  pointer-events: none;
}
.error-card span {
  display: inline;
}
.error-card .error-detail {
  display: block;
}
.msg-usage .warn {
  color: var(--danger);
}
.prompt-go .icon {
  transform: rotate(45deg);
}
@media (max-width: 980px) {
  .modal-card.lightbox {
    padding: 0;
  }
}

@media (max-width: 440px) {
  .chat-title {
    max-width: 104px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 14px;
  }
  .model-chip {
    max-width: 140px;
  }
  .model-chip-name {
    max-width: 74px;
  }
  .welcome {
    padding-top: 34px;
  }
}
.sources-empty {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.4px;
  color: var(--text-3);
}
.sources-empty .icon {
  width: 13px;
  height: 13px;
}