* { box-sizing: border-box; }

:root {
  color-scheme: dark;
  --canvas: oklch(13% 0.012 255);
  --sidebar: oklch(15.5% 0.014 255);
  --surface: oklch(18% 0.014 255);
  --surface-raised: oklch(21% 0.016 255);
  --surface-hover: oklch(23.5% 0.018 255);
  --line: oklch(28% 0.016 255);
  --line-strong: oklch(36% 0.018 255);
  --text: oklch(94% 0.008 255);
  --text-soft: oklch(82% 0.01 255);
  --muted: oklch(68% 0.012 255);
  --subtle: oklch(54% 0.014 255);
  --accent: oklch(65% 0.19 255);
  --accent-hover: oklch(71% 0.17 255);
  --accent-soft: oklch(24% 0.065 255);
  --danger: oklch(67% 0.18 25);
  --danger-soft: oklch(22% 0.05 25);
  --warning: oklch(78% 0.12 80);
  --warning-soft: oklch(23% 0.045 80);
  --success: oklch(72% 0.13 155);
  --font: Geist, Inter, "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-toggle: cubic-bezier(0.65, 0, 0.35, 1);
}

html, body { margin: 0; width: 100%; min-height: 100%; }
body {
  min-width: 320px;
  height: 100dvh;
  overflow: hidden;
  background: var(--canvas);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 380;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button, input, textarea, select { font: inherit; color: inherit; }
button, select { cursor: pointer; }
button, input, textarea, select { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
code, kbd { font-family: var(--mono); }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--accent-hover); outline-offset: 3px; }
.hidden { display: none !important; }
.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; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; transform: translateY(-150%); border-radius: var(--radius-sm); padding: 10px 14px; background: var(--accent); color: white; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }

.login { min-height: 100dvh; display: grid; place-items: center; padding: 24px; position: relative; overflow: hidden; }
.login::before { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; top: 50%; left: 50%; transform: translate(-50%, -64%); background: oklch(22% 0.06 255); filter: blur(110px); opacity: .35; pointer-events: none; }
.login-mark { position: fixed; top: 24px; left: 24px; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--surface); font-size: 14px; font-weight: 650; }
.login-card { position: relative; width: min(100%, 390px); display: grid; gap: 24px; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--sidebar); box-shadow: 0 24px 80px oklch(5% 0.01 255 / .35); }
.login-card header { display: grid; gap: 8px; }
.login-card h1, .settings-header h1, .empty-state h1 { margin: 0; font-weight: 620; letter-spacing: -.025em; }
.login-card h1 { font-size: 27px; }
.login-card p { margin: 0; color: var(--muted); }
.eyebrow { margin: 0; color: var(--muted); font-size: 11px; font-weight: 620; letter-spacing: .12em; line-height: 1.4; text-transform: uppercase; }

.field { display: grid; gap: 7px; min-width: 0; color: var(--text-soft); font-size: 13px; font-weight: 560; }
.field small { color: var(--muted); font-weight: 380; line-height: 1.5; }
.field input, .field select {
  min-height: 46px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 11px 13px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  transition: border-color 140ms var(--ease-out), background 140ms var(--ease-out);
}
.field input::placeholder, textarea::placeholder { color: var(--subtle); opacity: 1; }
.field input:hover, .field select:hover { border-color: var(--line-strong); }
.field input:focus-visible, .field select:focus-visible { border-color: var(--accent); outline-offset: 1px; }
.field.compact { flex: 1 1 260px; }
.field-message { margin: 0; font-size: 13px; }
.field-message.error { color: var(--danger); }

.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: var(--radius-md); padding: 10px 15px; font-size: 13px; font-weight: 580; text-decoration: none; transition: background 120ms var(--ease-out), border-color 120ms var(--ease-out), transform 120ms var(--ease-out); }
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(1px); }
.button:disabled { cursor: not-allowed; opacity: .48; transform: none; }
.button.primary { background: var(--accent); color: oklch(98% 0.004 255); }
.button.primary:hover { background: var(--accent-hover); }
.button.secondary { border-color: var(--line); background: var(--surface-raised); color: var(--text-soft); }
.button.secondary:hover { border-color: var(--line-strong); background: var(--surface-hover); color: var(--text); }
.button.danger { background: var(--danger); color: white; }
.button.danger-ghost { margin-left: auto; background: transparent; color: var(--muted); }
.button.danger-ghost:hover { background: var(--danger-soft); color: var(--danger); }

.app { height: 100dvh; min-height: 0; background: var(--canvas); }
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 400;
  width: min(86vw, 280px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: max(16px, env(safe-area-inset-top)) 12px max(12px, env(safe-area-inset-bottom));
  border-right: 1px solid var(--line);
  background: var(--sidebar);
  box-shadow: 20px 0 64px oklch(5% 0.01 255 / .48);
  transform: translateX(-102%);
  transition: transform 320ms var(--ease-out);
}
.app.sidebar-open .sidebar { transform: translateX(0); }
.sidebar-backdrop { position: fixed; inset: 0; z-index: 300; border: 0; padding: 0; background: oklch(6% 0.01 255 / .65); opacity: 0; pointer-events: none; transition: opacity 220ms var(--ease-toggle); }
.app.sidebar-open .sidebar-backdrop { opacity: 1; pointer-events: auto; }
.brand-row { min-height: 44px; display: flex; align-items: center; justify-content: space-between; padding: 0 4px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-size: 14px; font-weight: 620; text-decoration: none; }
.brand-mark { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 9px; background: var(--surface); font-size: 11px; }
.icon-button { width: 44px; height: 44px; display: grid; place-items: center; border: 0; border-radius: var(--radius-md); background: transparent; color: var(--muted); }
.icon-button:hover { background: var(--surface); color: var(--text); }
.new-conversation { min-height: 44px; display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 9px 11px; background: var(--surface); color: var(--text-soft); font-size: 13px; text-align: left; }
.new-conversation:hover { border-color: var(--line-strong); background: var(--surface-raised); color: var(--text); }
.new-conversation svg { width: 17px; }
.new-conversation span { flex: 1; }
.new-conversation kbd { color: var(--subtle); font-size: 10px; }
.nav-label { margin: 8px 10px 0; color: var(--subtle); font-size: 11px; font-weight: 580; letter-spacing: .04em; }
.conversation-list { flex: 1; min-height: 0; overflow-y: auto; display: grid; align-content: start; gap: 3px; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.conversation-item { position: relative; display: flex; align-items: center; min-height: 42px; border-radius: var(--radius-md); color: var(--muted); }
.conversation-item:hover, .conversation-item.active { background: var(--surface); color: var(--text-soft); }
.conversation-item.active { background: var(--surface-raised); color: var(--text); }
.conversation-item > button:first-child { flex: 1; min-width: 0; min-height: 42px; border: 0; padding: 8px 36px 8px 11px; overflow: hidden; background: transparent; color: inherit; font-size: 13px; text-align: left; text-overflow: ellipsis; white-space: nowrap; }
.conversation-item .delete-conversation { position: absolute; right: 3px; width: 36px; height: 36px; display: grid; place-items: center; border: 0; border-radius: 9px; background: transparent; color: var(--subtle); opacity: .1; }
.conversation-item:hover .delete-conversation, .conversation-item:focus-within .delete-conversation { opacity: 1; }
.delete-conversation:hover { background: var(--danger-soft); color: var(--danger); }
.delete-conversation svg { width: 16px; }
.telegram-dot { width: 5px; height: 5px; margin-left: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.sidebar-footer { display: grid; gap: 3px; border-top: 1px solid var(--line); padding-top: 10px; }
.corpus-mini { min-height: 28px; padding: 4px 10px 8px; color: var(--subtle); font-size: 11px; line-height: 1.45; }
.nav-action { min-height: 42px; display: flex; align-items: center; gap: 10px; border: 0; border-radius: var(--radius-md); padding: 8px 10px; background: transparent; color: var(--muted); font-size: 13px; text-align: left; }
.nav-action:hover, .nav-action.active { background: var(--surface); color: var(--text); }
.nav-action svg { width: 17px; }

.main { height: 100dvh; min-width: 0; display: flex; flex-direction: column; overflow: hidden; }
.topbar { min-height: 65px; display: flex; align-items: center; gap: 8px; padding: max(8px, env(safe-area-inset-top)) 12px 8px; border-bottom: 1px solid var(--line); background: var(--canvas); }
.conversation-heading { min-width: 0; flex: 1; display: grid; line-height: 1.25; }
.topbar-kicker { color: var(--subtle); font-size: 10px; text-transform: uppercase; letter-spacing: .07em; }
.conversation-heading strong { overflow: hidden; font-size: 13px; font-weight: 580; text-overflow: ellipsis; white-space: nowrap; }
.topbar-actions { display: flex; align-items: center; gap: 8px; }
.model-control select { max-width: 138px; min-height: 38px; border: 1px solid var(--line); border-radius: 10px; padding: 7px 28px 7px 10px; background: var(--surface); color: var(--text-soft); font-size: 12px; }
.status-pill { display: none; min-height: 30px; align-items: center; border: 1px solid oklch(40% 0.06 80); border-radius: 999px; padding: 5px 9px; background: var(--warning-soft); color: var(--warning); font-size: 11px; }

.chat-view { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.messages { flex: 1; min-height: 0; overflow-y: auto; padding: 28px 0 18px; scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.empty-state { width: min(100% - 40px, 640px); min-height: 65%; margin: 0 auto; display: grid; align-content: center; justify-items: center; gap: 12px; text-align: center; }
.empty-state h1 { max-width: 540px; font-size: clamp(24px, 6vw, 36px); line-height: 1.18; }
.empty-state > p:not(.eyebrow) { max-width: 500px; margin: 0; color: var(--muted); }
.empty-mark { width: 48px; height: 48px; display: flex; align-items: end; justify-content: center; gap: 4px; margin-bottom: 8px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); padding: 13px; }
.empty-mark span { width: 4px; border-radius: 4px; background: var(--accent); }
.empty-mark span:nth-child(1) { height: 9px; opacity: .55; }
.empty-mark span:nth-child(2) { height: 20px; }
.empty-mark span:nth-child(3) { height: 14px; opacity: .75; }
.prompt-suggestions { width: 100%; display: grid; gap: 7px; margin-top: 18px; }
.prompt-suggestions button { min-height: 44px; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 10px 13px; background: transparent; color: var(--muted); font-size: 13px; text-align: left; }
.prompt-suggestions button:hover { border-color: var(--line-strong); background: var(--surface); color: var(--text); }

.message { width: min(100%, 790px); margin: 0 auto 26px; padding: 0 18px; }
.message-header { display: flex; align-items: center; gap: 8px; min-height: 22px; margin-bottom: 6px; }
.message .role { color: var(--text-soft); font-size: 12px; font-weight: 580; }
.channel-chip { border: 1px solid var(--line); border-radius: 999px; padding: 2px 7px; color: var(--subtle); font-size: 10px; line-height: 1.4; }
.message .bubble { color: var(--text-soft); font-size: 15px; font-weight: 380; line-height: 1.65; overflow-wrap: anywhere; }
.message.user .bubble { width: fit-content; max-width: min(92%, 650px); margin-left: auto; border: 1px solid var(--line); border-radius: 16px 16px 4px 16px; padding: 11px 15px; background: var(--surface-raised); color: var(--text); }
.message.user .message-header { justify-content: flex-end; }
.message.streaming .bubble::after { content: ""; display: inline-block; width: 5px; height: 15px; margin-left: 4px; vertical-align: -2px; border-radius: 2px; background: var(--accent); animation: caret 900ms steps(2, jump-none) infinite; }
@keyframes caret { 50% { opacity: .2; } }
.bubble p { margin: 0 0 12px; }
.bubble p:last-child { margin-bottom: 0; }
.bubble strong { color: var(--text); font-weight: 620; }
.bubble pre { margin: 14px 0; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 14px; background: oklch(10% 0.01 255); font-size: 12px; }
.bubble code { border-radius: 5px; padding: 2px 5px; background: var(--surface-raised); color: var(--text); font-size: .86em; }
.bubble pre code { padding: 0; background: transparent; }
.bubble ul { margin: 0 0 12px; padding-left: 22px; }
.citations { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.citation { max-width: 100%; display: inline-flex; align-items: center; gap: 6px; min-height: 30px; border: 1px solid var(--line); border-radius: 999px; padding: 5px 9px; background: var(--surface); color: var(--muted); font-size: 11px; text-align: left; text-decoration: none; }
.citation:hover { border-color: var(--line-strong); color: var(--text); }
.citation b { color: var(--accent-hover); font-weight: 620; }

.source-backdrop { position: fixed; inset: 0; z-index: 440; border: 0; padding: 0; background: oklch(6% 0.01 255 / .62); opacity: 0; pointer-events: none; transition: opacity 180ms var(--ease-toggle); }
.app.source-open .source-backdrop { opacity: 1; pointer-events: auto; }
.source-panel { position: fixed; inset: 0 0 0 auto; z-index: 450; width: min(100%, 620px); min-width: 0; display: flex; flex-direction: column; border-left: 1px solid var(--line); background: var(--sidebar); box-shadow: -24px 0 72px oklch(5% 0.01 255 / .5); transform: translateX(102%); visibility: hidden; transition: transform 260ms var(--ease-out), visibility 0s linear 260ms; }
.app.source-open .source-panel { transform: translateX(0); visibility: visible; transition-delay: 0s; }
.source-header { min-height: 82px; display: flex; align-items: flex-start; gap: 16px; border-bottom: 1px solid var(--line); padding: max(17px, env(safe-area-inset-top)) 14px 15px 20px; }
.source-heading { min-width: 0; flex: 1; }
.source-heading h2 { margin: 3px 0 2px; overflow: hidden; color: var(--text); font-family: var(--mono); font-size: 13px; font-weight: 590; text-overflow: ellipsis; white-space: nowrap; }
.source-heading > p:last-child { margin: 0; overflow: hidden; color: var(--subtle); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.source-header-actions { display: flex; gap: 2px; }
.source-header-actions .icon-button { flex: 0 0 auto; }
.source-header-actions a { text-decoration: none; }
.source-loading { flex: 1; display: grid; align-content: start; gap: 12px; padding: 34px 24px; }
.source-loading span { height: 13px; border-radius: 5px; background: var(--surface-raised); animation: source-skeleton 1.2s ease-in-out infinite alternate; }
.source-loading span:nth-child(1) { width: 42%; height: 23px; }
.source-loading span:nth-child(2) { width: 88%; }
.source-loading span:nth-child(3) { width: 76%; }
.source-loading span:nth-child(4) { width: 58%; }
.source-loading p { margin: 10px 0 0; color: var(--subtle); font-size: 11px; }
@keyframes source-skeleton { to { opacity: .42; } }
.source-error { margin: auto; width: min(100% - 40px, 420px); text-align: center; }
.source-error strong { font-size: 15px; font-weight: 620; }
.source-error p { margin: 7px 0 18px; color: var(--muted); font-size: 12px; }
.source-document { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.source-context { min-height: 40px; display: flex; align-items: center; gap: 9px; border-bottom: 1px solid var(--line); padding: 7px 20px; color: var(--subtle); font-size: 10px; }
.source-context > span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.source-mode { flex: 0 0 auto; border: 1px solid var(--line); border-radius: 999px; padding: 3px 7px; color: var(--muted); }
.source-mode.dirty { border-color: oklch(45% 0.075 80); background: var(--warning-soft); color: var(--warning); }
.source-mode.saved { border-color: oklch(42% 0.07 155); color: var(--success); }
.source-preview { flex: 1; min-height: 0; overflow-y: auto; padding: 28px 24px 56px; color: var(--text-soft); font-size: 14px; line-height: 1.7; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.source-preview > :first-child { margin-top: 0; }
.source-preview h1, .source-preview h2, .source-preview h3, .source-preview h4 { color: var(--text); line-height: 1.3; scroll-margin-top: 16px; }
.source-preview h1 { margin: 0 0 24px; font-size: 24px; font-weight: 650; letter-spacing: -.02em; }
.source-preview h2 { margin: 34px 0 12px; border-bottom: 1px solid var(--line); padding-bottom: 9px; font-size: 18px; font-weight: 620; }
.source-preview h3 { margin: 26px 0 9px; font-size: 15px; font-weight: 620; }
.source-preview h4 { margin: 22px 0 8px; font-size: 13px; font-weight: 620; }
.source-preview p { max-width: 72ch; margin: 0 0 15px; }
.source-preview ul, .source-preview ol { max-width: 72ch; margin: 0 0 16px; padding-left: 22px; }
.source-preview li { margin-bottom: 5px; }
.source-preview blockquote { max-width: 72ch; margin: 18px 0; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 12px 14px; background: var(--surface); color: var(--muted); }
.source-preview pre { max-width: 100%; margin: 18px 0; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 14px; background: var(--canvas); font-size: 12px; }
.source-preview code { border-radius: 5px; padding: 2px 5px; background: var(--surface-raised); color: var(--text); font-size: .86em; }
.source-preview pre code { padding: 0; background: transparent; }
.source-table-wrap { max-width: 100%; margin: 18px 0 24px; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); }
.source-preview table { width: 100%; border-collapse: collapse; font-size: 12px; }
.source-preview th, .source-preview td { min-width: 130px; border-bottom: 1px solid var(--line); padding: 9px 11px; text-align: left; vertical-align: top; }
.source-preview th { background: var(--surface); color: var(--text); font-weight: 590; }
.source-preview tbody tr:last-child td { border-bottom: 0; }
.source-preview .cited-heading { border-radius: var(--radius-sm); background: var(--accent-soft); box-shadow: 0 0 0 7px var(--accent-soft); }
.source-editor { flex: 1; width: 100%; min-height: 0; resize: none; border: 0; padding: 24px 22px 56px; overflow: auto; background: var(--canvas); color: var(--text-soft); font-family: var(--mono); font-size: 12px; line-height: 1.75; tab-size: 2; }
.source-editor:focus-visible { outline: 0; box-shadow: inset 0 0 0 2px var(--accent); }
.source-footer { border-top: 1px solid var(--line); padding: 10px 14px max(12px, env(safe-area-inset-bottom)); background: var(--surface); }
.source-meta { display: flex; gap: 8px; margin-bottom: 9px; overflow: hidden; color: var(--subtle); font-family: var(--mono); font-size: 9px; }
.source-meta span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.source-meta span + span::before { content: "·"; margin-right: 8px; }
.source-actions { display: flex; justify-content: flex-end; gap: 8px; }
.source-actions .button svg { width: 16px; }
.source-discard-confirm { display: grid; gap: 10px; }
.source-discard-confirm p { margin: 0; color: var(--warning); font-size: 12px; }
.source-discard-confirm > div { display: flex; justify-content: flex-end; gap: 8px; }
.source-discard-confirm .danger-ghost { margin-left: 0; }

.composer-shell { width: 100%; padding: 8px 14px max(14px, env(safe-area-inset-bottom)); background: linear-gradient(to bottom, transparent, var(--canvas) 18%); }
.composer { width: min(100%, 790px); min-height: 56px; display: grid; gap: 7px; margin: 0 auto; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); padding: 7px; background: var(--surface-raised); box-shadow: 0 18px 44px oklch(6% 0.01 255 / .22); transition: border-color 140ms var(--ease-out), box-shadow 140ms var(--ease-out); }
.composer:focus-within { border-color: var(--accent); box-shadow: 0 18px 44px oklch(6% 0.01 255 / .3), 0 0 0 3px var(--accent-soft); }
.composer.dragging { border-color: var(--accent); background: var(--accent-soft); }
.composer-row { min-width: 0; display: flex; align-items: flex-end; gap: 6px; }
.composer textarea { flex: 1; min-height: 40px; max-height: 180px; resize: none; border: 0; padding: 9px 2px 7px; overflow-y: auto; background: transparent; color: var(--text); line-height: 1.5; }
.composer-tool { width: 42px; height: 42px; flex: 0 0 auto; display: grid; place-items: center; border: 0; border-radius: 11px; background: transparent; color: var(--muted); transition: background 120ms var(--ease-out), color 120ms var(--ease-out); }
.composer-tool:hover { background: var(--surface-hover); color: var(--text); }
.composer-tool:disabled { cursor: not-allowed; opacity: .42; }
.composer-tool svg { width: 19px; }
.composer-tool.recording { background: var(--danger-soft); color: var(--danger); }
.composer-tool.transcribing svg { animation: pulse 900ms ease-in-out infinite alternate; }
.composer-tool.feature-unavailable { color: var(--subtle); }
.send-button { width: 42px; height: 42px; flex: 0 0 auto; display: grid; place-items: center; border: 0; border-radius: 11px; background: var(--accent); color: white; transition: background 120ms var(--ease-out), transform 120ms var(--ease-out); }
.send-button:hover { background: var(--accent-hover); transform: translateY(-1px); }
.send-button:active { transform: translateY(1px); }
.send-button:disabled { cursor: not-allowed; background: var(--surface-hover); color: var(--subtle); transform: none; }
.composer-hint { width: min(100%, 790px); margin: 7px auto 0; color: var(--subtle); font-size: 10px; text-align: center; }
.composer-hint code { color: var(--muted); }
.attachment-tray { display: flex; gap: 7px; overflow-x: auto; padding: 1px; scrollbar-width: thin; }
.pending-attachment { min-width: 160px; max-width: 230px; display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 8px 8px 8px 10px; background: var(--surface); }
.pending-attachment > span { min-width: 0; flex: 1; display: grid; }
.pending-attachment strong { overflow: hidden; color: var(--text-soft); font-size: 11px; font-weight: 560; text-overflow: ellipsis; white-space: nowrap; }
.pending-attachment small { color: var(--subtle); font-size: 10px; }
.pending-attachment button { width: 32px; height: 32px; flex: 0 0 auto; display: grid; place-items: center; border: 0; border-radius: 8px; background: transparent; color: var(--muted); }
.pending-attachment button:hover { background: var(--danger-soft); color: var(--danger); }
.pending-attachment svg { width: 15px; }
.voice-status { min-height: 38px; display: flex; align-items: center; gap: 8px; padding: 2px 7px; color: var(--text-soft); font-size: 12px; }
.recording-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--danger); animation: pulse 800ms ease-in-out infinite alternate; }
.voice-status strong { margin-left: auto; font-family: var(--mono); font-size: 11px; font-weight: 520; }
.voice-status button { min-height: 32px; border: 0; border-radius: 8px; padding: 5px 8px; background: transparent; color: var(--muted); font-size: 11px; }
.voice-status button:hover { background: var(--danger-soft); color: var(--danger); }
@keyframes pulse { to { opacity: .35; } }
.message-attachments { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; margin-top: 8px; }
.message-attachment { max-width: 260px; display: grid; grid-template-columns: 18px minmax(0, 1fr); column-gap: 7px; align-items: center; border: 1px solid var(--line); border-radius: 10px; padding: 7px 10px; background: var(--surface); color: var(--text-soft); }
.message-attachment svg { grid-row: 1 / 3; width: 17px; color: var(--muted); }
.message-attachment > span { overflow: hidden; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.message-attachment small { color: var(--subtle); font-size: 9px; }
.message-attachment.error { border-color: var(--danger); }

.settings-view { flex: 1; overflow-y: auto; padding: 32px 18px 80px; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.settings-header, .settings-section { width: min(100%, 840px); margin-inline: auto; }
.settings-header { margin-bottom: 36px; }
.settings-header h1 { margin-top: 6px; font-size: clamp(26px, 5vw, 34px); }
.settings-header > p:last-child { margin: 7px 0 0; color: var(--muted); }
.settings-section { display: grid; gap: 20px; padding: 26px 0; border-top: 1px solid var(--line); }
.settings-copy { display: flex; align-items: flex-start; gap: 13px; }
.settings-copy h2 { margin: 1px 0 4px; font-size: 15px; font-weight: 620; }
.settings-copy p { margin: 0; color: var(--muted); font-size: 13px; }
.section-icon { width: 36px; height: 36px; flex: 0 0 auto; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); color: var(--text-soft); }
.section-icon svg { width: 18px; }
.definition-list { margin: 0; display: grid; }
.definition-list > div { min-height: 46px; display: grid; grid-template-columns: minmax(110px, 1fr) minmax(0, 2fr); align-items: center; gap: 12px; border-bottom: 1px solid var(--line); }
.definition-list > div:last-child { border-bottom: 0; }
.definition-list dt { color: var(--muted); font-size: 12px; }
.definition-list dd { margin: 0; color: var(--text-soft); font-size: 12px; text-align: right; overflow-wrap: anywhere; }
.settings-form { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; }
.settings-form .field { flex: 1 1 340px; }
.settings-actions { display: flex; flex-wrap: wrap; align-items: end; gap: 10px; }
.channel-status { display: flex; align-items: center; gap: 9px; min-height: 38px; color: var(--muted); font-size: 13px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--subtle); }
.status-dot.connected { background: var(--success); box-shadow: 0 0 0 4px oklch(25% 0.045 155); }
.pairing-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 16px; background: var(--surface); }
.pairing-panel > div { display: grid; }
.pairing-panel span { color: var(--muted); font-size: 11px; }
.pairing-panel strong { font-family: var(--mono); font-size: 24px; font-weight: 580; letter-spacing: .16em; }
.pairing-panel p { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; }
.command-example { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; border-radius: var(--radius-md); padding: 13px 15px; background: var(--surface); color: var(--muted); font-size: 12px; }
.command-example code { color: var(--text-soft); }
.memory-list { display: grid; gap: 7px; }
.model-settings-list { display: grid; gap: 6px; }
.provider-settings-list { display: grid; gap: 10px; }
.provider-setting { display: grid; grid-template-columns: minmax(150px, .7fr) minmax(240px, 1.5fr) auto; align-items: end; gap: 12px; border-bottom: 1px solid var(--line); padding: 0 0 14px; }
.provider-setting:last-child { border-bottom: 0; }
.provider-heading { align-self: center; display: grid; gap: 4px; }
.provider-heading strong { font-size: 13px; font-weight: 590; }
.provider-heading .model-state { font-size: 11px; }
.provider-key-field > span { font-size: 11px; }
.provider-key-field input { min-height: 42px; }
.provider-actions { display: flex; align-items: center; gap: 4px; }
.provider-actions .button { min-height: 42px; }
.model-setting { min-height: 42px; display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--line); color: var(--text-soft); font-size: 12px; }
.model-setting:last-child { border-bottom: 0; }
.model-setting > span:first-child { flex: 1; }
.model-provider { color: var(--muted); text-transform: capitalize; }
.model-state { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.model-state::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--subtle); }
.model-state.configured { color: var(--success); }
.model-state.configured::before { background: var(--success); }
.settings-note { margin: 0; color: var(--muted); font-size: 11px; }
.memory-item { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; border-bottom: 1px solid var(--line); padding: 10px 0; }
.memory-item code { min-width: 0; overflow: hidden; color: var(--text-soft); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.memory-item span { color: var(--muted); font-size: 11px; }
.memory-empty { margin: 0; color: var(--muted); font-size: 12px; }

.confirm-dialog { width: min(100% - 32px, 480px); border: 1px solid var(--line-strong); border-radius: var(--radius-lg); padding: 0; background: var(--surface-raised); color: var(--text); box-shadow: 0 28px 90px oklch(4% 0.01 255 / .55); }
.confirm-dialog::backdrop { background: oklch(6% 0.01 255 / .72); }
.confirm-dialog form { display: grid; gap: 14px; padding: 24px; }
.confirm-dialog h2 { margin: 0; font-size: 18px; font-weight: 620; }
.confirm-dialog p { margin: 0; color: var(--muted); font-size: 13px; }
.confirm-dialog form > div { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.toast { position: fixed; right: max(18px, env(safe-area-inset-right)); bottom: max(18px, env(safe-area-inset-bottom)); z-index: 500; max-width: min(380px, calc(100vw - 36px)); border: 1px solid var(--line-strong); border-radius: var(--radius-md); padding: 11px 14px; background: var(--surface-raised); color: var(--text-soft); box-shadow: 0 18px 48px oklch(5% 0.01 255 / .45); font-size: 12px; animation: toast-in 260ms var(--ease-out); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

@media (min-width: 620px) {
  .status-pill { display: inline-flex; }
  .prompt-suggestions { grid-template-columns: repeat(3, 1fr); }
  .prompt-suggestions button { text-align: center; }
  .settings-view { padding-inline: 32px; }
}

@media (max-width: 700px) {
  .provider-setting { grid-template-columns: minmax(0, 1fr) auto; }
  .provider-heading { grid-column: 1 / -1; }
  .provider-key-field { min-width: 0; }
  .provider-actions { align-items: end; }
  .provider-actions .danger-ghost { margin-left: 0; }
}

@media (min-width: 820px) {
  .app { display: grid; grid-template-columns: 260px minmax(0, 1fr); }
  .sidebar { position: static; width: auto; transform: none; box-shadow: none; }
  .sidebar-backdrop, .mobile-only { display: none; }
  .topbar { padding-inline: 24px; }
  .model-control select { max-width: 220px; }
  .messages { padding-top: 38px; }
  .settings-view { padding-top: 48px; }
}

@media (min-width: 1100px) {
  .app.source-open { grid-template-columns: 260px minmax(420px, 1fr) minmax(390px, 42vw); }
  .source-backdrop { display: none; }
  .source-panel { position: static; z-index: auto; width: auto; display: none; box-shadow: none; transform: none; visibility: visible; transition: none; }
  .app.source-open .source-panel { display: flex; }
}

@media (pointer: coarse) {
  .conversation-item, .conversation-item > button:first-child, .nav-action { min-height: 46px; }
  .conversation-item .delete-conversation { width: 44px; height: 44px; opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}