/* Shared surfaces, type and motion. No external fonts or UI dependencies. */
:root {
  --canvas:#191919; --sidebar:#141414; --surface:#282828; --surface-hover:#313131;
  --surface-raised:#2c2c2c; --ink:#eeedea; --muted:#b5b5b0; --quiet:#9b9b96;
  --line:rgba(255,255,255,.06); --accent:#c3cea5; --danger:#d6aaa0;
  --menu-radius:13px; --menu-shadow:0 14px 36px #0004,0 0 0 1px #ffffff0a;
  --sidebar-width:260px; --rail:64px; --column:780px; --composer-height:158px;
  --ease:cubic-bezier(.2,.7,.2,1); --motion-fast:140ms; --motion-menu:180ms; --motion-normal:180ms; --motion-panel:220ms; --motion-slow:1400ms;
  font-family:Inter,"Segoe UI Variable Text","Segoe UI",-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--ink); background:var(--canvas); font-synthesis:none; color-scheme:dark;
}
* {box-sizing:border-box}
html,body {margin:0;height:100%;overflow:hidden;overscroll-behavior:none}
body {font-size:14px;-webkit-font-smoothing:antialiased}
button,input,textarea,select {font:inherit}
button,a,input,textarea,select {-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button {border:0;background:none;color:inherit;cursor:pointer}
button:disabled {cursor:not-allowed}
button,a {transition:background var(--motion-fast),color var(--motion-fast),opacity var(--motion-fast),transform var(--motion-fast)}
button:active:not(:disabled) {transform:scale(.97)}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible,summary:focus-visible {outline:2px solid var(--accent);outline-offset:3px}
a {color:inherit}
svg {display:block;width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
[data-icon] {display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
[hidden] {display:none!important}
.sr-only {position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.skip-link {position:fixed;top:-80px;left:20px;z-index:200;background:var(--ink);color:var(--canvas);padding:12px;border-radius:10px}
.skip-link:focus {top:12px}
::selection {background:#b5be9c40}
::-webkit-scrollbar {width:6px;height:6px}
::-webkit-scrollbar-thumb {background:#ffffff22;border-radius:8px}
::-webkit-scrollbar-track {background:transparent}
.app-shell {display:flex;height:var(--viewport-height,100dvh);overflow:hidden;overflow:clip}
.sidebar {width:var(--sidebar-width);background:var(--sidebar);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden;transition:width var(--motion-panel) var(--ease),transform var(--motion-panel) var(--ease);z-index:40}
.sidebar-head {height:76px;display:flex;align-items:center;padding:0 16px 0 18px;gap:8px;position:relative;flex-shrink:0;min-width:260px}
.brand {display:flex;align-items:center;gap:10px;font-size:15px;line-height:24px;font-weight:600;letter-spacing:-.25px;text-decoration:none;white-space:nowrap;flex:1}
.brand-mark {display:flex;color:var(--accent);flex-shrink:0;width:28px;height:28px;align-items:center;justify-content:center}
.brand-mark svg {height:26px;width:26px;stroke-width:1.7}
.brand-name,.nav-label,.profile-label,.history-heading {transition:opacity var(--motion-normal) var(--ease)}
.brand-name {text-transform:uppercase}
.icon-button {width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;color:var(--muted);flex-shrink:0}
.icon-button:hover {color:var(--ink);background:var(--surface-hover)}
.icon-button svg {width:19px;height:19px}
.muted {color:var(--muted)}
.sidebar-head .icon-button {width:34px;height:34px;color:var(--quiet)}
.sidebar-actions {padding:0 12px 17px;min-width:260px}
.nav-action {display:flex;align-items:center;gap:12px;width:236px;height:44px;padding:0 10px;border-radius:10px;text-align:left;color:var(--ink);font-size:14px}
.nav-action:hover {background:#ffffff08}
.nav-action kbd {margin-left:auto;font:11px "Segoe UI",sans-serif;color:var(--quiet);opacity:0;transition:opacity var(--motion-fast)}
.nav-action:hover kbd,.nav-action:focus-visible kbd {opacity:1}
.search-box {display:flex;align-items:center;gap:12px;padding:0 9px;height:44px;color:var(--muted);border-radius:10px;position:relative;width:236px}
.search-box:hover,.search-box:focus-within {background:#ffffff08}
.search-box:focus-within {background:#222;box-shadow:inset 0 0 0 1px #c3cea52b;color:var(--ink)}
.search-icon {padding:0;width:20px;height:36px;flex-shrink:0;display:grid;place-items:center;color:inherit;border-radius:6px}
.search-icon:hover {color:var(--ink)}
.search-icon svg {width:19px}
.search-box input {width:100%;border:0;outline:none;background:transparent;color:var(--ink);min-width:0;padding:10px 0;font-size:14px}
.search-box input::-webkit-search-cancel-button {appearance:none}
.search-box input::placeholder {color:var(--muted)}
.clear-search {width:25px;height:28px;position:absolute;right:5px;background:var(--surface-raised)}
.clear-search svg {width:14px}
.search-box:has(.clear-search:not([hidden])) input {padding-right:24px}
.history-heading {padding:10px 23px 9px;font-size:13px;font-weight:500;white-space:nowrap;color:var(--quiet)}
.history-group+.history-group {margin-top:21px}
.history-group-label {font-size:13px;font-weight:500;line-height:20px;color:var(--quiet);margin:5px 11px 7px}
.history {flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding:0 12px 14px;min-width:260px}
.history-empty {font-size:13px;color:var(--quiet);line-height:1.65;margin:9px 11px;max-width:194px}
.history-row {position:relative;border-radius:10px;display:flex;align-items:center;margin:2px 0;height:42px;transition:background var(--motion-fast) var(--ease),box-shadow var(--motion-fast) var(--ease)}
.history-row:hover {background:#232323}
.history-row:active {background:#292929}
.history-row:focus-within {background:#232323}
.history-row.active {background:#262626;box-shadow:inset 0 0 0 1px #ffffff04}
.history-row.active:hover {background:#2b2b2b}
.history-link:focus-visible {outline-offset:-2px;border-radius:9px}
.history-link {flex:1;align-self:stretch;text-align:left;padding:10px 11px;min-width:0;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#c3c3be;border-radius:10px}
.history-row.active .history-link {color:var(--ink)}
.history-row:hover .history-link,.history-row:focus-within .history-link {padding-right:38px}
.history-link .pin-marker {display:inline-block;width:12px;height:12px;margin-right:6px;vertical-align:-1px;color:var(--quiet)}
.history-actions {display:flex;position:absolute;right:4px;opacity:0;pointer-events:none;border-radius:8px;background:inherit;transition:opacity var(--motion-fast)}
.history-row:hover .history-actions,.history-row:focus-within .history-actions {opacity:1;pointer-events:auto}
.history-actions .icon-button {width:30px;height:30px}
.history-actions svg {width:18px;height:18px}
.history-load {font-size:13px;width:100%;padding:12px;color:var(--muted);border-radius:8px}
.history-load:hover {background:#ffffff06;color:var(--ink)}
.sidebar-footer {padding:12px 12px max(14px,env(safe-area-inset-bottom));min-width:260px}
.workspace-button {display:flex;align-items:center;gap:12px;width:236px;min-height:44px;padding:10px;border-radius:10px;text-align:left;font-size:14px;color:var(--muted)}
.workspace-button:hover {background:#ffffff08}
.workspace-button:active {background:#ffffff0d}
.workspace-button:hover,.workspace-button:focus-visible {color:var(--ink)}
.settings-icon {width:20px;height:24px;flex-shrink:0}
.settings-icon svg {width:19px;height:19px}
.profile-label {white-space:nowrap}
.sidebar-collapsed .sidebar {width:var(--rail)}
.sidebar-collapsed .brand-name,.sidebar-collapsed .nav-label,.sidebar-collapsed kbd,.sidebar-collapsed .profile-label,.sidebar-collapsed .history-heading {opacity:0;pointer-events:none}
.sidebar-collapsed .history {visibility:hidden;pointer-events:none}
.sidebar-collapsed .sidebar-actions {padding-left:12px}
.sidebar-collapsed .nav-action,.sidebar-collapsed .search-box {width:40px;overflow:hidden}
.sidebar-collapsed .search-box input {visibility:hidden}
.sidebar-collapsed .workspace-button {width:40px;padding:10px;overflow:hidden}
.sidebar-collapsed #btnCloseSidebar {position:absolute;left:16px;opacity:0;background:var(--sidebar)}
.sidebar-collapsed .sidebar:hover #btnCloseSidebar,.sidebar-collapsed #btnCloseSidebar:focus-visible {opacity:1}
.sidebar-collapsed .sidebar:hover .brand-mark {opacity:0}
.main {flex:1;min-width:0;display:flex;flex-direction:column;position:relative;overflow-x:clip}
.topbar {height:40px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 25px 0 22px;z-index:30}
.header-left {display:flex;align-items:center;gap:7px}
#btnToggleSidebar {display:none}
.model-picker {position:relative;display:flex;align-items:center;gap:2px}
.model-trigger {display:flex;align-items:center;gap:6px;height:38px;padding:0 9px;border-radius:7px;font-size:13px;line-height:20px;font-weight:500;letter-spacing:.05px;color:#d3d3cd;white-space:nowrap}
.model-trigger:hover {background:#ffffff05;color:var(--ink)}
.model-trigger[aria-expanded=true] {color:var(--ink);background:transparent}
.model-trigger>span:first-child {animation:model-in var(--motion-normal) var(--ease)}
.model-trigger svg {width:14px;height:14px;color:var(--quiet);transition:transform var(--motion-normal) var(--ease)}
.model-trigger[aria-expanded=true] svg {transform:rotate(180deg)}
.model-trigger:disabled {opacity:.6}
.header-new-chat {color:var(--quiet);display:none}
.popover {background:var(--surface-raised);box-shadow:var(--menu-shadow);border:0;border-radius:var(--menu-radius);padding:7px;animation:popover-in var(--motion-menu) var(--ease)}
.popover.is-closing {pointer-events:none;animation:popover-out var(--motion-menu) var(--ease) forwards}
.model-menu {position:absolute;left:0;top:calc(100% + 8px);width:416px;max-width:calc(100vw - 24px);overflow:auto;overscroll-behavior:contain;z-index:60;padding:7px;border:0;transform-origin:top right;--menu-enter:-4px;animation:model-menu-in var(--motion-menu) var(--ease)}
.model-menu[data-side=up] {transform-origin:bottom right;--menu-enter:5px}
.model-menu.is-closing {animation:model-menu-out var(--motion-menu) var(--ease) forwards}
.menu-label {font-size:12px;font-weight:500;color:var(--quiet);padding:8px 11px 10px}
.model-option {display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto auto;align-items:baseline;width:100%;padding:16px 15px;text-align:left;border-radius:8px;column-gap:14px;row-gap:6px;min-height:81px}
.model-option:hover:not(:disabled),.model-option:focus-visible {background:#ffffff0b}
.model-option[aria-checked=true] {background:#ffffff04}
.model-option:focus-visible {outline-offset:-2px;outline-width:1px}
.model-name {grid-column:1;grid-row:1;font-size:15px;line-height:20px;font-weight:600;letter-spacing:-.1px}
.model-description {grid-column:1;grid-row:2;font-size:13px;line-height:19px;color:#bebeba;min-width:0}
.model-status {grid-column:2;grid-row:2;justify-self:end;font-size:11.5px;line-height:19px;color:#94948f;white-space:nowrap}
.model-option .check {grid-column:2;grid-row:1;justify-self:end;align-self:center;color:#d1d1cb}
.model-option .check svg {width:16px;height:16px;stroke-width:1.8}
.model-option:disabled {color:#bcbcb7;opacity:1;cursor:default;padding-block:12px;min-height:73px}
.model-option:disabled .model-name {opacity:.85}
.model-option:disabled .model-description {color:#a2a29d}
.menu-note {margin:9px 11px 7px;color:var(--quiet);line-height:1.5;font-size:12px}
.conversation-menu {position:fixed;width:186px;z-index:100;transform-origin:top right}
.conversation-menu button {width:100%;padding:10px 11px;display:flex;align-items:center;gap:10px;text-align:left;border-radius:9px;font-size:13px}
.conversation-menu button:hover {background:#ffffff08}
.conversation-menu svg {width:17px;height:17px}
.conversation-menu .danger {color:var(--danger)}
.chat-stage {position:relative;flex:1;min-height:0;display:flex;flex-direction:column;--jump-size:36px;--jump-gap:12px}
.message-scroll {flex:1;min-height:0;overflow-y:auto;scroll-behavior:auto;overscroll-behavior:contain;scroll-padding:24px 0 16px}
.chat-stage:not(.is-empty) .message-scroll {margin-bottom:var(--composer-height)}
.chat-stage:not(.is-empty):has(.jump-button:not([hidden])) .message-scroll {margin-bottom:calc(var(--composer-height) + var(--jump-size) + 2 * var(--jump-gap))}
.messages {width:min(var(--column),calc(100% - 64px));margin:0 auto;padding:24px 0 16px;display:flex;flex-direction:column;gap:24px}
.message {min-width:0;scroll-margin-top:24px}
.message.user {display:flex;flex-direction:column;align-items:flex-end;padding-left:50px}
.user-text {margin:0;background:#303030;border-radius:18px;padding:14px 20px;min-width:72px;max-width:88%;font-size:16px;line-height:1.6;white-space:pre-wrap;overflow-wrap:anywhere}
.user-text.youtube-command {padding-inline:23px}
.message-body {font-size:16px;line-height:1.7;color:#e0e0dc;overflow-wrap:anywhere;min-width:0}
.message-body>:first-child {margin-top:0}
.message-body>:last-child {margin-bottom:0}
.message-body p {margin:16px 0}
.message-body h1,.message-body h2,.message-body h3,.message-body h4 {color:var(--ink);line-height:1.4;margin:24px 0 12px;letter-spacing:-.35px;font-weight:600}
.message-body h1 {font-size:25px}.message-body h2 {font-size:22px}.message-body h3 {font-size:19px}.message-body h4 {font-size:17px}
.message-body strong {color:var(--ink);font-weight:600}
.message-body ul,.message-body ol {padding-left:24px;margin:16px 0}
.message-body li {padding-left:4px;margin:6px 0}
.message-body li::marker {color:var(--muted)}
.message-body a {color:#d6ddc8;text-underline-offset:4px;text-decoration-thickness:1px}
.message-body a:hover {color:var(--ink)}
.message-body blockquote {margin:20px 0;padding:1px 0 1px 18px;border-left:2px solid #555;color:var(--muted)}
.message-body hr {border:0;border-top:1px solid var(--line);margin:25px 0}
.message-body :not(pre)>code {font: .88em/1.5 "Cascadia Code","SFMono-Regular",Consolas,monospace;border-radius:5px;background:#ffffff09;padding:2px 5px;color:#e1e1dc;word-break:break-word}
.code-block {border-radius:13px;overflow:hidden;margin:20px 0;background:#151515;max-width:100%;box-shadow:0 0 0 1px #ffffff05}
.code-header {display:flex;align-items:center;justify-content:space-between;padding:6px 15px;background:#242424;color:var(--muted);font-size:13px}
.copy-code {display:flex;gap:7px;align-items:center;color:var(--muted);font-size:13px;padding:5px 8px;border-radius:6px;min-height:32px}
.copy-code:hover {color:var(--ink);background:#ffffff08}
.copy-code svg {width:14px;height:14px}
.code-block pre {margin:0;padding:20px;overflow:auto;font:13.5px/1.75 "Cascadia Code","SFMono-Regular",Consolas,monospace;tab-size:4;color:#deddd8;overscroll-behavior-x:contain}
.code-block pre:focus-visible,.table-scroll:focus-visible {outline-offset:-2px}
.code-keyword {color:#c6bed5}.code-string {color:#b8c7a9}.code-comment {color:#989b96}.code-number {color:#d2c1a3}
.table-scroll {overflow:auto;max-width:100%;margin:20px 0;border-radius:9px}
.message-body table {border-collapse:collapse;text-align:left;font-size:14px;min-width:560px;width:100%}
.message-body th {font-weight:550;color:var(--ink);background:#ffffff05}
.message-body th,.message-body td {min-width:100px;padding:10px 14px;border-bottom:1px solid #ffffff0b;vertical-align:top;line-height:1.6}
.message-body th {padding-block:12px}
.message-actions {display:flex;gap:3px;align-items:center;margin-top:8px;min-height:32px}
.message-actions .icon-button {width:32px;height:32px;color:var(--quiet);opacity:0}
.message:hover .message-actions .icon-button,.message:focus-within .message-actions .icon-button,.message:last-child .message-actions .icon-button {opacity:1}
.message-actions svg {width:17px;height:17px}
.copy-feedback {font-size:12px;color:var(--muted);margin-left:6px;animation:model-in var(--motion-menu) var(--ease)}
.message-note {font-size:13px;color:var(--quiet);margin:0 0 0 7px}
.message-error {font-size:14px;line-height:1.65;color:var(--muted);padding:10px 0;display:flex;align-items:center;gap:10px}
.message-error>svg {color:var(--danger)}
.message-error svg {width:17px;height:17px;flex-shrink:0}
.message-error button {text-decoration:underline;text-underline-offset:3px}
.stream-status {font-size:13px!important;color:var(--muted);display:flex;gap:9px;align-items:center;margin:11px 0!important;min-height:24px}
.stream-status::before {content:"";width:6px;height:6px;background:#c3c9b6;border-radius:50%;animation:breathe 1.6s ease-in-out infinite;flex-shrink:0}
.web-search-status::before {width:13px;height:13px;background:transparent;border:1.5px solid #c3c9b640;border-top-color:#c3c9b6;animation:web-search-spin .85s linear infinite}
@keyframes web-search-spin {to {transform:rotate(360deg)}}
.jump-button {position:absolute;bottom:calc(var(--composer-height) + var(--jump-gap));left:50%;transform:translateX(-50%);z-index:22;background:var(--surface-raised);box-shadow:0 4px 16px #0003,0 0 0 1px #ffffff0c;border-radius:50%;width:var(--jump-size);height:var(--jump-size)}
.jump-button:active:not(:disabled) {transform:translateX(-50%) scale(.96)}
.jump-button:hover {box-shadow:0 4px 16px #0004,0 0 0 1px #ffffff14}
.jump-button:focus-visible {outline-offset:3px}
.chat-stage:has(#modelDropdownMenu:not([hidden])) .jump-button {visibility:hidden;pointer-events:none}
.composer-wrapper {position:absolute;bottom:0;left:0;right:0;padding:12px 32px max(15px,env(safe-area-inset-bottom));z-index:21;background:linear-gradient(0deg,var(--canvas) 88%,transparent);pointer-events:none}
.main:has(.composer-wrapper .popover:not([hidden])) .topbar {z-index:20}
.composer-column {max-width:var(--column);margin:0 auto;position:relative;pointer-events:auto}
.composer {position:relative;background:var(--surface);border:0;border-radius:24px;padding:14px 16px 9px;box-shadow:0 4px 18px #00000014,0 1px 0 #ffffff04 inset;transition:background var(--motion-normal),box-shadow var(--motion-normal)}
.composer:focus-within {background:#2a2a2a;box-shadow:0 5px 22px #00000018,0 0 0 1px #c3cea523}
.composer textarea {display:block;width:100%;resize:none;min-height:34px;max-height:220px;overflow-y:auto;color:var(--ink);border:0;outline:none;background:none;padding:0 8px 7px;font-size:16px;line-height:1.6;scrollbar-width:thin}
.composer textarea::placeholder {color:#b6b6b0;opacity:1}
.composer-controls {display:flex;align-items:center;justify-content:space-between;margin-top:6px;gap:12px}
.tool-button {display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:8px;font-size:13px;line-height:20px;font-weight:500;color:#ccccc6;min-height:38px;background:#ffffff03}
.tool-button:hover,.tool-button[aria-expanded=true] {background:#ffffff0b;color:var(--ink)}
.tool-button:active {background:#ffffff13}
.tool-button svg {width:18px;height:18px}
.tool-button .tools-chevron {display:none}
.send-control {position:relative;width:38px;height:38px}
.send-button {position:absolute;inset:0;height:38px;width:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#42443e;color:var(--ink);box-shadow:0 0 0 1px #ffffff0c;transition:background var(--motion-fast),transform var(--motion-fast) var(--ease),opacity var(--motion-normal),box-shadow var(--motion-fast)}
.send-button:hover:not(:disabled) {background:#51534d;box-shadow:0 0 0 1px #ffffff1a}
.send-button:active:not(:disabled) {transform:scale(.93)}
.send-button:disabled {background:#353535;color:#85857f;box-shadow:none;opacity:1}
.send-button svg {width:21px;height:21px;stroke-width:1.9}
.stop-button {background:#383a36;color:var(--ink);opacity:0;pointer-events:none;transform:scale(.88)}
.stop-button:hover:not(:disabled) {background:#454741}
.stop-button svg {display:none}
.stop-button::after {content:'';width:9px;height:9px;border-radius:2px;background:currentColor}
.is-generating .stop-button {opacity:1;pointer-events:auto;transform:scale(1);animation:active-control var(--motion-slow) ease-in-out infinite}
.is-generating #btnSend {opacity:0;pointer-events:none;transform:scale(.88)}
.stop-button:disabled {background:#444;color:#bbb;opacity:.7}
.composer-right {display:flex;align-items:center;gap:8px;min-width:0}
.draft-count {position:absolute;right:22px;top:13px;font-size:11px;color:var(--quiet);pointer-events:none}
.composer-hint {font-size:12px;line-height:1.5;color:var(--quiet);text-align:center;margin:11px 0 0}
.chat-stage:not(.is-empty) .composer-hint {font-size:13px;color:#ababa6;margin-top:10px}
.greeting {text-align:center;padding-bottom:28px}
.greeting h1 {margin:0;font-size:30px;line-height:1.35;font-weight:400;letter-spacing:-.7px;color:#eaeae5}
.chat-stage.is-empty .message-scroll {visibility:hidden}
.chat-stage.is-empty .composer-wrapper {bottom:53%;transform:translateY(40%);background:none}
.chat-stage.is-empty .composer-hint {visibility:hidden}
.chat-stage:not(.is-empty) .greeting {display:none}
.greeting-leaving {position:absolute;pointer-events:none;z-index:20;margin:0;padding:0}
.slash-picker {position:absolute;bottom:calc(100% + 10px);left:0;width:min(460px,100%);z-index:50;max-height:min(340px,43dvh);overflow:auto;transform-origin:bottom left}
.slash-option {display:flex;width:100%;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;text-align:left;min-height:57px}
.slash-option.active,.slash-option:hover {background:#ffffff08}
.slash-option svg {color:var(--muted);width:20px;height:20px}
.slash-option strong {font-weight:550;font-size:13px}
.slash-option small {display:block;color:var(--muted);font-size:12px;margin-top:4px;line-height:1.4}
.slash-option kbd {margin-left:auto;color:var(--quiet);font-size:12px}
.tool-card {border-radius:15px;padding:21px 22px;margin:13px 0;background:#232323;font-size:14px;overflow-wrap:anywhere;animation:message-in var(--motion-normal) var(--ease)}
.tool-heading {display:flex;align-items:center;gap:9px;color:var(--ink);font-weight:550;margin-bottom:9px}
.tool-heading svg {width:20px;height:20px;color:var(--muted)}
.tool-count {margin-left:auto;font-size:13px;font-weight:400;color:var(--muted)}
.tool-summary {margin:8px 0!important;color:var(--muted);line-height:1.6;font-size:13px}
.tool-notice {font-size:13px;color:var(--quiet);line-height:1.65;margin:10px 0!important}
.youtube-card {padding:24px}
.youtube-header {padding-bottom:20px;border-bottom:1px solid var(--line)}
.youtube-header .tool-heading {font-size:15px;margin-bottom:8px;gap:10px}
.youtube-header .tool-count {font-size:13px;white-space:nowrap}
.message-body .youtube-query {margin:0;font-size:15px;line-height:1.6;color:#d1d1cc}
.youtube-header .tool-notice {margin:8px 0 0!important;font-size:13px;line-height:1.6;color:var(--muted)}
.message-body .youtube-empty {font-size:15px;line-height:1.65;margin:20px 0 4px;color:var(--muted)}
.youtube-result {padding:26px 0;margin:0;display:grid;grid-template-columns:168px minmax(0,1fr);gap:20px;border-bottom:1px solid var(--line)}
.youtube-result:last-child {padding-bottom:0;border-bottom:0}
.result-thumbnail {aspect-ratio:16/9;background:#2b2b2b;border-radius:10px;overflow:hidden;position:relative;display:flex;align-items:center;justify-content:center;color:var(--quiet);align-self:start}
.result-thumbnail>svg {position:absolute}
.result-thumbnail img {width:100%;height:100%;object-fit:cover;position:relative}
.message-body .result-title {margin:0;font-size:16px;font-weight:600;line-height:1.5;color:var(--ink);letter-spacing:-.1px}
.result-source {display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:8px 0 12px;line-height:20px}
.result-time {font-size:14px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--ink);background:#ffffff07;border-radius:5px;padding:2px 6px}
.result-channel {font-size:13px;color:var(--quiet)}
.result-evidence {margin:0!important;font-size:15px;color:#d0d0cb;line-height:1.65}
.result-metadata {display:flex;gap:0 14px;align-items:baseline;flex-wrap:wrap;margin:8px 0 0;font-size:13px;color:#aaaaa4}
.result-modality {display:inline-flex;align-items:center;gap:5px}
.result-modality::before {content:"";width:4px;height:4px;border-radius:50%;background:currentColor}
.result-details {min-width:0;max-width:100%}
.result-details summary {cursor:pointer;min-height:32px;padding:6px 2px;border-radius:5px;line-height:20px;font-size:13px}
.result-details summary:hover {color:var(--ink)}
.result-details p {font-size:13px;line-height:1.6;margin:4px 0 8px;color:var(--muted)}
.result-actions {display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.result-actions a,.result-actions button {color:#d8d8d3;font-size:14px;text-decoration:none;padding:8px 12px;display:inline-flex;align-items:center;gap:7px;min-height:40px;border-radius:8px;background:#ffffff04}
.result-actions svg {width:14px;height:14px}
.result-actions a:hover,.result-actions button:hover {color:var(--ink);background:#ffffff0b}
.result-actions a:active,.result-actions button:active {background:#ffffff12;transform:scale(.97)}
.tool-stages {margin-top:16px}
.tool-stages summary {font-size:13px;line-height:20px;color:var(--quiet);cursor:pointer;min-height:32px;padding:6px 0;border-radius:5px}
.tool-stages summary:hover {color:var(--ink)}
.tool-stages p {font-size:13px;line-height:1.65;color:var(--muted);margin:8px 0}
.tool-link {display:block;text-decoration:none;margin:14px 0;color:var(--ink);border-radius:8px;padding:8px}
.tool-link:hover {background:#ffffff06}
.tool-link small {display:block;color:var(--muted);margin-top:4px;font-size:13px}
.toast {position:fixed;bottom:25px;left:50%;transform:translateX(-50%);width:max-content;max-width:min(420px,calc(100% - 32px));padding:13px 18px;border-radius:13px;background:#343434;color:var(--ink);box-shadow:0 8px 35px #0004;z-index:150;font-size:13px;line-height:1.5;animation:toast-in var(--motion-menu) var(--ease)}
dialog {color:var(--ink);background:#262626;border:0;padding:0;border-radius:20px;box-shadow:0 24px 80px #0006,0 0 0 1px #ffffff09;max-height:min(720px,88dvh)}
dialog[open] {animation:dialog-in var(--motion-panel) var(--ease)}
dialog::backdrop {background:#070707b3}
.settings-dialog {width:min(780px,calc(100% - 40px))}
.dialog-header {padding:22px 26px 17px;display:flex;align-items:center;justify-content:space-between}
.dialog-header h2 {font-size:20px;letter-spacing:-.45px;font-weight:550;margin:0}
.dialog-header .icon-button {width:34px;height:34px}
.settings-layout {display:flex;min-height:400px}
.settings-nav {width:180px;flex-shrink:0;padding:8px 13px 22px}
.settings-nav button {display:flex;align-items:center;gap:10px;width:100%;border-radius:8px;padding:11px 12px;text-align:left;font-size:14px;color:var(--muted);margin:4px 0;min-height:43px}
.settings-nav button.active {background:#ffffff08;color:var(--ink)}
.settings-nav button.active svg {color:var(--accent)}
.settings-nav button:hover {background:#ffffff05;color:var(--ink)}
.settings-nav button.active:hover {background:#ffffff0b}
.settings-nav svg {width:18px;height:18px}
.settings-content {padding:18px 30px 32px;min-width:0;flex:1;overflow:auto;max-height:calc(88dvh - 90px)}
.settings-content h3 {font-size:17px;letter-spacing:-.25px;font-weight:550;margin:0 0 22px}
.settings-content p {font-size:14px;color:var(--muted);line-height:1.7}
.setting-row {display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.5}
.setting-row:first-of-type {padding-top:0}.setting-row:last-of-type {border-bottom:0}
.setting-row small {display:block;font-size:13px;color:var(--quiet);margin-top:6px;line-height:1.5}
.setting-row select {appearance:none;background:#303030 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24'%3E%3Cpath d='m7 10 5 5 5-5' fill='none' stroke='%23adada8' stroke-width='1.7'/%3E%3C/svg%3E") no-repeat right 9px center;border:0;padding:10px 31px 10px 12px;border-radius:9px;max-width:165px;font-size:13px;color:var(--ink);cursor:pointer}
.setting-row select:hover {background-color:#373737}
.setting-row select:active {background-color:#3c3c3c}
.setting-row input[type=checkbox] {appearance:none;width:38px;height:23px;border-radius:20px;background:#444444;position:relative;flex-shrink:0;cursor:pointer;transition:background var(--motion-normal);margin:0}
.setting-row input[type=checkbox]::before {content:"";position:absolute;left:3px;top:3px;width:17px;height:17px;background:#babbb5;border-radius:50%;transition:transform var(--motion-normal) var(--ease),background var(--motion-normal)}
.setting-row input[type=checkbox]:checked {background:var(--accent)}
.setting-row input[type=checkbox]:checked::before {transform:translateX(15px);background:#24261f}
.setting-row input[type=checkbox]:hover {box-shadow:0 0 0 3px #ffffff06}
.model-detail {padding:16px 0;border-bottom:1px solid var(--line)}
.model-detail:first-of-type {padding-top:0}.model-detail:last-child {border:0}
.model-detail strong {font-size:15px;font-weight:550}.model-detail p {margin:8px 0}.model-detail small {font-size:13px;color:var(--quiet)}
.model-technical {margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.model-technical summary {cursor:pointer;font-size:14px;font-weight:500;color:var(--muted)}
.model-technical summary:hover {color:var(--ink)}
.technical-list {font-size:13px;margin:10px 0 0;line-height:1.6}
.technical-list dt {color:var(--quiet);margin-top:12px}.technical-list dd {margin:4px 0;overflow-wrap:anywhere;color:#d0d0c8}
.small-dialog {width:min(430px,calc(100% - 36px))}
.dialog-body {padding:7px 26px 22px;font-size:14px;line-height:1.6}
.dialog-body p {color:var(--muted);margin:0 0 16px}
.dialog-body label {display:block;margin-bottom:8px;font-size:13px;color:var(--muted)}
.dialog-body input {width:100%;padding:12px 13px;background:#2e2e2e;border:1px solid var(--line);border-radius:10px;color:var(--ink)}
.dialog-footer {display:flex;justify-content:flex-end;gap:8px;padding:0 26px 24px}
.button {background:#d9dfcd;color:#26281f;border-radius:10px;padding:11px 17px;font-size:13px;font-weight:550;min-height:40px}
.button:hover {background:#e8eddd}.button.secondary {background:#ffffff07;color:var(--muted)}.button.secondary:hover {background:#ffffff10;color:var(--ink)}
.button.danger {background:#ae5c56;color:white}.button.danger:hover {background:#bc6760}
.error-text {color:var(--danger)!important;margin-top:10px!important}
.drawer-overlay {display:none}
[data-density=compact] .message-body {font-size:15px;line-height:1.7}
[data-density=compact] .messages {gap:24px}
@keyframes toast-in {from {opacity:0;transform:translate(-50%,4px) scale(.985)}to {opacity:1;transform:translate(-50%,0)}}
@keyframes popover-in {from {opacity:0;transform:translateY(5px) scale(.985)}to {opacity:1;transform:none}}
@keyframes popover-out {to {opacity:0;transform:translateY(3px) scale(.99)}}
@keyframes model-menu-in {from {opacity:0;transform:translateY(var(--menu-enter)) scale(.99)}to {opacity:1;transform:none}}
@keyframes model-menu-out {to {opacity:0;transform:translateY(var(--menu-enter)) scale(.99)}}
@keyframes dialog-in {from {opacity:0;transform:translateY(10px) scale(.985)}to {opacity:1;transform:none}}
@keyframes message-in {from {opacity:0;transform:translateY(7px)}to {opacity:1;transform:none}}
@keyframes model-in {from {opacity:.5}to {opacity:1}}
@keyframes control-in {from {opacity:0;transform:scale(.92)}to {opacity:1;transform:scale(1)}}
@keyframes breathe {50% {opacity:.35}}

@media(min-width:761px) and (max-width:1100px) { :root {--sidebar-width:240px}.sidebar-head,.sidebar-actions,.history,.sidebar-footer {min-width:240px}.sidebar-head {padding-inline:14px}.brand {gap:7px;font-size:14px}.nav-action,.search-box,.workspace-button {width:216px}.messages {width:calc(100% - 48px)}.composer-wrapper {padding-inline:24px} }
@media(min-width:761px) and (max-width:1100px) { .youtube-card {padding:20px}.youtube-result {grid-template-columns:120px minmax(0,1fr);gap:16px} }
@media(max-width:760px) {
  .sidebar {position:fixed;inset:0 auto 0 0;height:var(--viewport-height,100dvh);width:min(290px,86vw)!important;transform:translateX(-100%);--sidebar-width:290px}
  .sidebar-head,.sidebar-actions,.history,.sidebar-footer {min-width:290px}
  .sidebar-collapsed .brand-name,.sidebar-collapsed .nav-label,.sidebar-collapsed .profile-label,.sidebar-collapsed .history-heading {opacity:1}
  .sidebar-collapsed .history {visibility:visible}
  .drawer-open .sidebar {transform:translateX(0);box-shadow:14px 0 50px #0004}
  .drawer-overlay {position:fixed;inset:0;background:#0008;z-index:35;width:100%;height:100%;border-radius:0}
  .drawer-open .drawer-overlay {display:block}
  .sidebar-head {height:68px;padding-inline:20px}
  .sidebar-actions {padding-inline:14px}.nav-action,.search-box {width:262px;height:46px}
  .history {padding-inline:14px}.history-row {height:44px}.history-link {padding-right:37px}
  .history-actions {background:transparent}
  .history-row.active .history-actions {opacity:1;pointer-events:auto}
  .history-actions .icon-button {width:36px;height:36px}
  .sidebar-footer {padding-inline:14px}.workspace-button {width:262px}
  .sidebar-head .icon-button {width:36px;height:40px}
  .topbar {height:62px;padding:0 12px}.header-left {gap:3px}
  #btnToggleSidebar {display:inline-flex;width:42px;height:42px}
  .model-trigger {font-size:13px;padding:0 8px;height:42px}
  .header-new-chat {display:inline-flex;width:42px;height:42px}
  .messages {width:calc(100% - 36px);padding:14px 0 16px;gap:24px}
  .message.user {padding-left:22px}.user-text {max-width:94%;padding:12px 16px;font-size:16px}
  .user-text.youtube-command {padding-inline:19px}
  .message-body {font-size:16px;line-height:1.7}.message-body h2 {font-size:21px}
  .message-actions .icon-button {opacity:1;width:42px;height:42px}
  .composer-wrapper {padding:10px 12px max(10px,env(safe-area-inset-bottom))}
  .composer {border-radius:23px;padding:13px 12px 8px}
  .composer textarea {font-size:16px;min-height:34px;max-height:160px;padding-inline:7px}
  .composer-controls {margin-top:5px}
  .send-control,.send-button {width:42px;height:42px;border-radius:50%}
  .tool-button {min-height:42px;padding-inline:9px}
  .composer-hint {font-size:12px;margin-top:10px}
  .chat-stage.is-empty .composer-wrapper {bottom:54%;transform:translateY(43%)}
  .greeting {padding-bottom:26px}.greeting h1 {font-size:27px;letter-spacing:-.6px}
  .model-menu {width:calc(100vw - 24px)}
  .model-option {padding:15px 12px;column-gap:10px}
  .slash-picker {max-height:min(340px,43dvh);width:100%}.slash-option {padding:7px 10px;gap:10px;min-height:54px}
  .slash-option strong {line-height:18px}.slash-option small {line-height:16px;margin-top:3px}
  .conversation-menu button {min-height:44px}
  .settings-dialog {width:calc(100% - 24px);max-height:88dvh;border-radius:19px}
  .settings-layout {flex-direction:column;min-height:0}
  .settings-nav {width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:3px 14px 13px;gap:4px}
  .settings-nav button {padding:10px 8px;white-space:nowrap;width:100%;justify-content:center;margin:0;font-size:13px;min-height:42px}
  .settings-nav button svg {display:none}
  .settings-content {padding:17px 23px 25px;max-height:calc(88dvh - 190px);min-height:230px}
  .dialog-header {padding:18px 20px 13px}.dialog-header h2 {font-size:19px}
  .setting-row {gap:13px}.setting-row select {max-width:144px;padding-left:10px;font-size:13px}
  .youtube-result {grid-template-columns:96px minmax(0,1fr);gap:12px;padding-block:26px}
  .result-info {display:contents}
  .result-thumbnail {width:96px;aspect-ratio:16/9;grid-column:1;grid-row:1 / span 2;border-radius:8px}
  .message-body .result-title {grid-column:2;grid-row:1;margin:0}
  .result-source {grid-column:2;grid-row:2;margin:0;gap:6px}
  .result-evidence,.result-metadata,.result-actions {grid-column:1 / -1}
  .result-metadata {margin-top:0}.result-actions {margin-top:0;gap:8px}
  .tool-card {padding:16px}.result-actions a,.result-actions button {min-height:44px;font-size:14px;padding-inline:10px}
  .result-details summary,.tool-stages summary {min-height:40px;padding-block:10px}
  .chat-stage {--jump-size:40px}
  .code-block pre {font-size:13px;padding:18px 17px}.copy-code {min-height:40px}
  .nav-action kbd {display:none}
}
@media(max-height:540px) and (max-width:760px) {
  .topbar {height:49px}.greeting {padding-bottom:16px}.greeting h1 {font-size:24px}
  .chat-stage.is-empty .composer-wrapper {bottom:39%;transform:translateY(40%)}
  .composer-hint {display:none}.composer textarea {max-height:95px}
  .slash-picker {max-height:150px}.settings-dialog {max-height:94dvh}
}
.answer-content:empty,.tool-results:empty {display:none}
.answer-content>:first-child {margin-top:0}
.answer-content>:last-child {margin-bottom:0}
.message-body.is-pending {min-height:32px}
.activity-row {display:flex;align-items:center;gap:9px;min-height:28px;color:var(--muted);font-size:13px;line-height:24px;margin-top:8px}
.is-pending .activity-row {margin-top:0}
.activity-glyph {display:flex;width:16px;flex-shrink:0;opacity:.75;animation:activity-breathe var(--motion-slow) ease-in-out infinite}
.activity-glyph svg {width:16px;height:16px;stroke-width:1.6}
.activity-label {animation:activity-label-in var(--motion-normal) var(--ease)}
.activity-summary {color:var(--quiet);font-size:12px;line-height:1.5;margin:8px 0 0!important}
.user-actions {margin-top:3px;min-height:28px}
.user-actions .icon-button {width:30px;height:28px}
.message-actions .icon-button {transition:opacity var(--motion-fast),background var(--motion-fast),color var(--motion-fast),transform var(--motion-fast)}
.copy-feedback {white-space:nowrap;pointer-events:none}
.message-actions {position:relative}
.copy-feedback+* {margin-left:0}
.message-actions button[aria-label=Copied] svg {animation:activity-label-in var(--motion-normal) var(--ease)}
.sidebar {scrollbar-color:#ffffff20 transparent;scrollbar-width:thin}
.history {scrollbar-color:#ffffff1a transparent;scrollbar-width:thin}
.history:hover {scrollbar-color:#ffffff30 transparent}
.tool-card {animation:none}
.tool-card summary {transition:color var(--motion-fast),background var(--motion-fast)}
.tool-card details[open]>:not(summary) {animation:activity-label-in var(--motion-normal) var(--ease)}
.message-body a {text-underline-offset:3px;transition:color var(--motion-fast),text-decoration-color var(--motion-fast)}
.message-body a:hover {color:var(--ink);text-decoration-color:var(--accent)}
@keyframes activity-breathe {0%,100%{opacity:.45}50%{opacity:.9}}
@keyframes activity-label-in {from{opacity:0}to{opacity:1}}
@keyframes active-control {0%,100%{box-shadow:0 0 0 1px #ffffff0c}50%{box-shadow:0 0 0 1px #ffffff25}}
@media(hover:none) {.message-actions .icon-button {opacity:1}}
@media(prefers-reduced-motion:reduce) {*,*::before,*::after {animation:none!important;transition:none!important;scroll-behavior:auto!important}}
[data-reduce-motion=true] *,[data-reduce-motion=true] *::before,[data-reduce-motion=true] *::after {animation:none!important;transition:none!important;scroll-behavior:auto!important}
.artifact-card{display:flex;flex-wrap:wrap;align-items:center;gap:12px;border:1px solid var(--border);border-radius:12px;padding:14px;margin:12px 0;min-width:0}.artifact-card>svg{width:20px;height:20px;flex-shrink:0}.artifact-card strong{overflow-wrap:anywhere}.artifact-card small{color:var(--text-muted)}.artifact-card details{width:100%;min-width:0}.artifact-card pre{max-height:260px;overflow:auto}.artifact-preview{width:min(1000px,95vw);height:85vh;padding:12px;background:#202020;border:1px solid #444;border-radius:14px;color:inherit}.artifact-preview::backdrop{background:#000a}.artifact-preview>button{display:block;margin:0 0 10px auto}.artifact-preview iframe{width:100%;height:calc(100% - 54px);border:0;background:white;border-radius:8px}.memory-search{width:100%;margin:12px 0}.memory-entry{padding:12px 0;border-bottom:1px solid var(--border);overflow-wrap:anywhere}.memory-entry summary{cursor:pointer}.memory-entry p{white-space:pre-wrap}.settings-content input[type=search],.settings-content input:not([type]){background:#242424;color:inherit;border:1px solid #444;border-radius:7px;padding:10px;max-width:100%}.activity-glyph svg{stroke-linecap:round}

/* ---------------------------------------------------------------------------
   API providers (bring your own model) settings
--------------------------------------------------------------------------- */
.provider-form {display:flex;flex-direction:column;gap:10px;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:#ffffff04;margin:6px 0 20px;max-width:520px}
.provider-form strong {font-size:14px;font-weight:550}
.provider-form input {background:#242424;border:1px solid var(--line);border-radius:10px;padding:11px 13px;color:var(--ink);font-size:13px;width:100%;transition:border-color var(--motion-fast),box-shadow var(--motion-fast),background var(--motion-fast)}
.provider-form input:focus {outline:none;border-color:#c3cea566;box-shadow:0 0 0 3px #c3cea51a;background:#282828}
.provider-form input::placeholder {color:#77776f}
.provider-list {display:flex;flex-direction:column;max-width:520px}
.provider-list p {color:var(--quiet);font-size:13px}
.provider-actions {display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.provider-actions .button,.provider-actions button {padding:7px 13px;border-radius:9px;background:#ffffff08;font-size:13px;display:inline-flex;align-items:center;gap:6px}
.provider-actions button:hover {background:#ffffff12}
.provider-feedback {min-height:22px;font-size:13px;color:var(--accent)}
.provider-entry {animation:provider-in var(--motion-panel) var(--ease)}
@keyframes provider-in {from {opacity:0;transform:translateY(6px)}to {opacity:1;transform:none}}
.api-endpoint {display:block;background:#242424;border:1px solid var(--line);border-radius:10px;padding:11px 13px;font-family:ui-monospace,Consolas,monospace;font-size:12px;color:#c3cea5;overflow-wrap:anywhere;margin:8px 0;user-select:all}

/* ---------------------------------------------------------------------------
   Heavy motion & effects layer (disabled by reduce-motion kill switches above)
--------------------------------------------------------------------------- */
.main::before {
  content:"";position:absolute;inset:-20%;z-index:0;pointer-events:none;
  background:
    radial-gradient(38% 32% at 22% 18%, #c3cea51f, transparent 70%),
    radial-gradient(30% 34% at 78% 12%, #7fa3b81c, transparent 70%),
    radial-gradient(34% 30% at 62% 84%, #b8a3c31a, transparent 72%),
    radial-gradient(26% 26% at 12% 80%, #8fb89a17, transparent 70%);
  animation:aurora-drift 26s ease-in-out infinite alternate;
  will-change:transform,opacity;
}
.main::after {
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(#ffffff09 1px, transparent 1.1px);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(70% 60% at 50% 40%, #000 0%, transparent 100%);
          mask-image:radial-gradient(70% 60% at 50% 40%, #000 0%, transparent 100%);
}
.main>*:not(.composer-wrapper):not(.topbar) {position:relative;z-index:1}
@keyframes aurora-drift {
  0%   {transform:translate3d(-2%,-1%,0) scale(1);opacity:.85}
  33%  {transform:translate3d(2%,2%,0) scale(1.05) rotate(1.5deg);opacity:1}
  66%  {transform:translate3d(-1%,3%,0) scale(1.02) rotate(-1deg);opacity:.9}
  100% {transform:translate3d(3%,-2%,0) scale(1.06) rotate(2deg);opacity:.95}
}
.sidebar {box-shadow:1px 0 0 #ffffff06, 24px 0 60px -30px #00000080}
.history-row {transition:background var(--motion-fast) var(--ease),box-shadow var(--motion-fast) var(--ease),transform var(--motion-fast) var(--ease)}
.history-row:hover {transform:translateX(2px)}
.history-row.active {box-shadow:inset 0 0 0 1px #c3cea51f, 0 0 18px -6px #c3cea52e;background:linear-gradient(90deg,#c3cea50e,#262626 42%)}
.workspace-button {transition:background var(--motion-fast),color var(--motion-fast),transform var(--motion-fast) var(--ease),box-shadow var(--motion-fast)}
.workspace-button:hover {transform:translateY(-1px);box-shadow:0 6px 18px -8px #0009}
.brand-mark {transition:transform var(--motion-panel) var(--ease),filter var(--motion-panel)}
.brand:hover .brand-mark {transform:rotate(-8deg) scale(1.08);filter:drop-shadow(0 0 8px #c3cea566)}
.composer {backdrop-filter:blur(6px)}
.composer::before {
  content:"";position:absolute;inset:-1px;border-radius:25px;padding:1px;pointer-events:none;
  background:conic-gradient(from var(--ring-angle,0deg),transparent 0 78%,#c3cea588 88%,#7fa3b888 94%,transparent 100%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity var(--motion-normal);
  animation:ring-spin 3.6s linear infinite;
}
.composer:focus-within::before {opacity:1}
.composer:focus-within {box-shadow:0 5px 30px #00000030,0 0 0 1px #c3cea52e,0 0 42px -10px #c3cea526}
@property --ring-angle {syntax:'<angle>';initial-value:0deg;inherits:false}
@keyframes ring-spin {to {--ring-angle:360deg}}
.send-button:not(:disabled) {animation:send-breathe 2.6s ease-in-out infinite}
@keyframes send-breathe {
  0%,100% {box-shadow:0 0 0 1px #ffffff0c,0 0 0 0 #c3cea533}
  50%     {box-shadow:0 0 0 1px #ffffff14,0 0 16px 2px #c3cea52e}
}
.send-button:not(:disabled):hover {animation-play-state:paused}
.send-button:not(:disabled):active {transform:scale(.9)}
.tool-button {transition:background var(--motion-fast),transform var(--motion-fast) var(--ease)}
.tool-button:hover {transform:translateY(-1px)}
.tools-chevron {transition:transform var(--motion-fast)}
.composer.is-generating .tools-chevron {animation:chevron-nudge 1.1s ease-in-out infinite}
@keyframes chevron-nudge {0%,100% {transform:translateY(0)}50% {transform:translateY(2px)}}
.greeting h1 {
  background:linear-gradient(100deg,#eaeae5 12%,#c3cea5 34%,#9fc4d8 55%,#eaeae5 78%);
  background-size:220% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:greeting-flow 7s ease-in-out infinite alternate;
}
@keyframes greeting-flow {from {background-position:0% 0}to {background-position:100% 0}}
.chat-stage.is-empty .greeting h1 {animation:greeting-flow 7s ease-in-out infinite alternate, greeting-float 6s ease-in-out infinite}
@keyframes greeting-float {0%,100% {transform:translateY(0)}50% {transform:translateY(-4px)}}
.message {animation:message-in var(--motion-panel) var(--ease) both}
@keyframes message-in {from {opacity:0;transform:translateY(9px) scale(.995)}to {opacity:1;transform:none}}
.message.user {animation-name:user-message-in}
@keyframes user-message-in {from {opacity:0;transform:translateY(7px) translateX(10px)}to {opacity:1;transform:none}}
/* No ::after caret on a pending reply: after the block-level activity row it wrapped onto a line
   of its own and showed as a blinking accent-coloured block under the pending animation. */
.model-menu {box-shadow:var(--menu-shadow),0 0 40px -18px #c3cea540;backdrop-filter:blur(10px)}
.model-option {border-radius:10px;transition:background var(--motion-fast),transform var(--motion-fast) var(--ease),box-shadow var(--motion-fast)}
.model-option:hover:not(:disabled) {transform:translateX(2px);box-shadow:inset 2px 0 0 var(--accent)}
.model-option .check svg {animation:check-pop var(--motion-panel) var(--ease)}
@keyframes check-pop {0% {transform:scale(0) rotate(-30deg)}70% {transform:scale(1.25)}100% {transform:scale(1)}}
.icon-button {transition:background var(--motion-fast),color var(--motion-fast),transform var(--motion-fast) var(--ease)}
.icon-button:hover {transform:translateY(-1px)}
.history-load,.jump-button {transition:opacity var(--motion-fast),transform var(--motion-fast) var(--ease),box-shadow var(--motion-fast)}
.jump-button:hover {transform:translateY(-2px) scale(1.04);box-shadow:0 8px 22px -8px #000c,0 0 0 1px #c3cea52e}
dialog[open].settings-dialog,dialog[open].small-dialog {animation:dialog-in var(--motion-panel) var(--ease)}
@keyframes dialog-in {from {opacity:0;transform:translateY(14px) scale(.965)}to {opacity:1;transform:none}}
dialog.settings-dialog::backdrop,dialog.small-dialog::backdrop {background:#000a;animation:backdrop-in var(--motion-normal) ease}
@keyframes backdrop-in {from {opacity:0}to {opacity:1}}
.toast {box-shadow:0 14px 40px -12px #000c,0 0 0 1px #ffffff0d}
.toast:not([hidden]) {animation:toast-glow 5s ease}
@keyframes toast-glow {0% {box-shadow:0 14px 40px -12px #000c,0 0 0 0 #c3cea544}18% {box-shadow:0 14px 40px -12px #000c,0 0 22px 0 #c3cea53a}100% {box-shadow:0 14px 40px -12px #000c,0 0 0 1px #ffffff0d}}
.answer-content pre {animation:code-in var(--motion-panel) var(--ease)}
@keyframes code-in {from {opacity:0;transform:translateY(4px)}to {opacity:1;transform:none}}
.chat-image-progress {position:relative;overflow:hidden}
.chat-image-progress::after {
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 20%,#ffffff2e 50%,transparent 80%);
  transform:translateX(-100%);animation:progress-shine 1.6s ease-in-out infinite;
}
@keyframes progress-shine {to {transform:translateX(100%)}}
.settings-nav button {border-radius:10px;transition:background var(--motion-fast),color var(--motion-fast),box-shadow var(--motion-fast)}
.settings-nav button.active {box-shadow:inset 0 0 0 1px #c3cea51c,0 0 16px -8px #c3cea53d}
.settings-nav button[data-tab=providers] svg,.settings-nav button[data-tab=lab] svg {transition:filter var(--motion-fast),transform var(--motion-panel) var(--ease)}
.settings-nav button[data-tab=providers]:hover svg,.settings-nav button[data-tab=lab]:hover svg {transform:rotate(-12deg);filter:drop-shadow(0 0 6px #c3cea555)}
.chat-image-tile {transition:transform var(--motion-normal) var(--ease),box-shadow var(--motion-normal)}
.chat-image-tile:hover {transform:translateY(-3px) scale(1.008);box-shadow:0 16px 36px -16px #000d}

/* ---------------------------------------------------------------------------
   ATLAS usage panel
--------------------------------------------------------------------------- */
.usage-panel {margin:12px 0 4px;border:1px solid var(--line);border-radius:12px;background:#ffffff03;padding:10px 14px;max-width:560px}
.usage-panel summary {cursor:pointer;font-size:13px;font-weight:550;color:#d3d3cd;list-style:none;display:flex;align-items:center;gap:8px}
.usage-panel summary::before {content:"";width:7px;height:7px;border-radius:50%;background:linear-gradient(120deg,var(--accent),#9fc4d8);flex-shrink:0}
.usage-panel[open] summary {margin-bottom:8px}
.usage-grid {display:grid;grid-template-columns:auto 1fr;gap:4px 16px;font-size:12.5px;line-height:1.55}
.usage-label {color:var(--quiet)}
.usage-value {color:#d6d6d0;overflow-wrap:anywhere}
.usage-note {margin:8px 0 0;font-size:12px;color:var(--quiet)}

/* ---------------------------------------------------------------------------
   9-dot thinking grid (activity)
--------------------------------------------------------------------------- */
.activity-glyph {display:grid;grid-template-columns:repeat(3,1fr);gap:2px;width:16px;height:16px;flex-shrink:0}
.activity-dot {width:4px;height:4px;border-radius:1.5px;background:var(--muted);align-self:center;justify-self:center;opacity:.55;animation:activity-grid 1.15s ease-in-out calc(var(--d,0ms)) infinite}
@keyframes activity-grid {0%,100%{opacity:.22;transform:scale(.65)}35%{opacity:1;transform:scale(1.05)}}

/* ---------------------------------------------------------------------------
   Effort slider — track melts into the page background (#191919)
--------------------------------------------------------------------------- */
.effort-trigger {gap:7px}
.effort-trigger .effort-value {color:var(--ink);font-weight:600}
.effort-trigger svg {width:16px;height:16px;color:var(--quiet)}
.effort-menu {position:absolute;right:0;top:calc(100% + 8px);width:340px;max-width:calc(100vw - 24px);z-index:60;background:var(--surface-raised);border:0;border-radius:var(--menu-radius);box-shadow:var(--menu-shadow),0 18px 44px #000a;padding:14px 16px 15px;transform-origin:top right;animation:model-menu-in var(--motion-menu) var(--ease)}
.effort-menu.is-closing {animation:model-menu-out var(--motion-menu) var(--ease) forwards}
.effort-head {display:flex;align-items:center;gap:8px;margin-bottom:12px}
.effort-title {font-size:13px;font-weight:600;color:#d6d6d0;letter-spacing:.1px}
.effort-level {font-size:13px;font-weight:700;color:var(--accent)}
.effort-kbd {margin-left:auto;font-family:inherit;font-size:11px;line-height:1;padding:5px 8px;border-radius:6px;color:#8a8a86;background:#ffffff0a;border:1px solid #ffffff10}
.effort-slider {position:relative;display:flex;align-items:center;height:24px}
.effort-track {position:absolute;left:0;right:0;top:50%;height:10px;transform:translateY(-50%);border-radius:999px;background:linear-gradient(90deg,#191919 0%,#222222 30%,#2c2c2c 62%,#383838 85%,#454545 100%);box-shadow:inset 0 0 0 1px #ffffff0e,0 2px 10px #00000066;overflow:hidden}
.effort-fill {position:absolute;left:0;top:0;bottom:0;width:75%;border-radius:999px;background:linear-gradient(90deg,#3c3c39,#8f8f89 70%,var(--accent));box-shadow:0 0 12px #c3cea52e;transition:width 260ms var(--ease)}
.effort-menu.is-dragging .effort-fill {transition:none}
.effort-sheen {position:absolute;top:-4px;bottom:-4px;left:-18%;width:14%;background:linear-gradient(105deg,transparent,#ffffff2e 45%,#ffffff4d 50%,#ffffff2e 55%,transparent);filter:blur(1px);animation:effort-sheen 3.4s var(--ease) infinite}
.effort-slider:has(input:focus-visible) .effort-track {box-shadow:inset 0 0 0 1px #c3cea5aa,0 2px 10px #00000066}
.effort-spark {position:absolute;border-radius:50%;background:#d8d8d2;opacity:0;pointer-events:none;animation:effort-spark var(--spark-dur,3s) ease-in-out var(--spark-delay,0s) infinite;box-shadow:0 0 6px #b5b5b099}
.effort-spark.big {width:3px;height:3px;background:#eeedea}
.effort-spark.small {width:2px;height:2px}
.effort-slider input[type=range] {position:relative;z-index:2;-webkit-appearance:none;appearance:none;width:100%;height:24px;margin:0;background:transparent;cursor:pointer}
.effort-slider input[type=range]:focus-visible {outline:none}
.effort-slider input[type=range]::-webkit-slider-thumb {-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:#fff;border:0;box-shadow:0 2px 8px #0008,0 0 0 1px #00000026;transition:transform var(--motion-fast) var(--ease),box-shadow var(--motion-normal) var(--ease);animation:effort-knob 2.4s ease-in-out infinite}
.effort-slider input[type=range]:active::-webkit-slider-thumb {transform:scale(1.12);animation:none;box-shadow:0 2px 8px #0008,0 0 0 1px #00000026,0 0 18px #c3cea599}
.effort-slider input[type=range]::-moz-range-thumb {width:22px;height:22px;border-radius:50%;background:#fff;border:0;box-shadow:0 2px 8px #0008,0 0 0 1px #00000026;animation:effort-knob 2.4s ease-in-out infinite}
.effort-slider input[type=range]::-moz-range-track {background:transparent}
.effort-scale {display:flex;justify-content:space-between;margin-top:10px;font-size:11px;color:#7f7f7b}
.effort-scale span.on {color:var(--accent);font-weight:600}
.effort-level.pop {animation:effort-pop 260ms var(--ease)}
.effort-note {margin:10px 0 0;font-size:12px;line-height:1.5;color:var(--quiet)}
@keyframes effort-knob {0%,100% {box-shadow:0 2px 8px #0008,0 0 0 1px #00000026,0 0 0px #c3cea500}50% {box-shadow:0 2px 8px #0008,0 0 0 1px #00000026,0 0 14px #c3cea580}}
@keyframes effort-pop {0% {transform:scale(1)}40% {transform:scale(1.18)}100% {transform:scale(1)}}
@keyframes effort-sheen {0% {transform:translateX(0)}55%,100% {transform:translateX(1000%)}}
@keyframes effort-spark {0%,100% {opacity:0;transform:translateY(0)}30% {opacity:.85;transform:translateY(-2px)}}
@media (prefers-reduced-motion:reduce) { .effort-spark {animation:none;opacity:.5} }

/* Ultra effort: premium purple reasoning mode */
[data-effort="ultra"] .effort-trigger {color:#c9b8f8}
[data-effort="ultra"] .effort-trigger .effort-value {color:#d9ccff;text-shadow:0 0 14px #a78bfa66}
[data-effort="ultra"] .effort-trigger svg {color:#a78bfa;filter:drop-shadow(0 0 6px #a78bfa66)}
[data-effort="ultra"] .effort-menu {box-shadow:var(--menu-shadow),0 0 44px -12px #a78bfa66,0 0 0 1px #a78bfa33}
[data-effort="ultra"] .effort-level {color:#c9b8f8}
[data-effort="ultra"] .effort-scale span.on {color:#c9b8f8}
[data-effort="ultra"] .effort-fill {background:linear-gradient(90deg,#4a3f6b,#8d7bc7 70%,#c9b8f8);box-shadow:0 0 12px #a78bfa4d}
[data-effort="ultra"] .effort-slider input[type=range]:active::-webkit-slider-thumb {box-shadow:0 2px 8px #0008,0 0 0 1px #00000026,0 0 18px #a78bfa99}
[data-effort="ultra"] .composer:focus-within {box-shadow:0 5px 30px #00000030,0 0 0 1px #a78bfa3d,0 0 42px -10px #a78bfa2e}
[data-effort="ultra"] .composer::before {background:conic-gradient(from var(--ring-angle,0deg),transparent 0 78%,#a78bfa99 88%,#7c6bb899 94%,transparent 100%)}
@keyframes ultra-aura {0%,100% {opacity:.75}50% {opacity:1}}
[data-effort="ultra"] .effort-trigger {animation:ultra-aura 3s ease-in-out infinite}
@media (prefers-reduced-motion:reduce) {[data-effort="ultra"] .effort-trigger {animation:none}}

/* ---------------------------------------------------------------------------
   ATLAS Intelligence Lab
--------------------------------------------------------------------------- */
.lab-summary {display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 18px}
.lab-badge {padding:5px 10px;border-radius:999px;font-size:12px;background:#ffffff0a;border:1px solid var(--line)}
.lab-badge.not-run {color:#c3cea5;border-color:#c3cea533}
.lab-badge.access-restricted {color:#d8c9a0;border-color:#d8c9a033}
.lab-badge.unsupported {color:#d6aaa0;border-color:#d6aaa033}
.lab-badge.partially-access-restricted {color:#d8c9a0;border-color:#d8c9a033}
.lab-total {padding:5px 10px;font-size:12px;color:var(--quiet)}
.lab-category {padding:14px 0;border-bottom:1px solid var(--line)}
.lab-category strong {font-size:14px;font-weight:550}
.lab-entry {display:flex;align-items:baseline;gap:10px;padding:5px 0;font-size:13px}
.lab-status {flex-shrink:0;font-size:11px;padding:2px 8px;border-radius:6px;background:#ffffff08;color:var(--muted)}
.lab-name {color:#d0d0c8;overflow-wrap:anywhere}
.lab-rules {margin:16px 0}
.lab-rules summary {cursor:pointer;font-size:13px;color:#d3d3cd;font-weight:550}
.lab-rules p {font-size:12.5px;color:var(--muted);line-height:1.6;margin:6px 0}
/* Atlas System panel */
.sys-card {display:flex;flex-direction:column;gap:9px;padding:14px 0;border-top:1px solid var(--line)}
.sys-card > small,.sys-card > p {color:var(--muted);font-size:12.5px;line-height:1.55;margin:0}
.sys-meter {display:grid;grid-template-columns:130px minmax(0,1fr) auto;align-items:center;gap:10px;font-size:13px}
.sys-meter progress,.sys-job progress {width:100%;height:6px;appearance:none;border:0;border-radius:3px;background:#ffffff10;overflow:hidden}
.sys-meter progress::-webkit-progress-bar,.sys-job progress::-webkit-progress-bar {background:#ffffff10}
.sys-meter progress::-webkit-progress-value,.sys-job progress::-webkit-progress-value {background:var(--accent)}
.sys-meter progress::-moz-progress-bar,.sys-job progress::-moz-progress-bar {background:var(--accent)}
.sys-meter.warn progress::-webkit-progress-value {background:var(--danger)}
.sys-meter.warn .sys-meter-value {color:var(--danger)}
.sys-meter-label {color:var(--muted)}
.sys-meter-value {font-variant-numeric:tabular-nums;white-space:nowrap}
.sys-profiles {display:grid;gap:6px}
.sys-profile {display:flex;gap:10px;align-items:flex-start;padding:8px 10px;border-radius:10px;background:#ffffff05;cursor:pointer}
.sys-profile:has(input:disabled) {opacity:.6;cursor:default}
.sys-profile span {display:flex;flex-direction:column;font-size:13.5px}
.sys-profile small {color:var(--muted);font-size:12px;margin-top:2px}
.sys-jobs {display:grid;gap:8px}
.sys-job {padding:10px 12px;border-radius:10px;background:#ffffff06;display:grid;gap:6px}
.sys-job small {color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}
.sys-job-head {display:flex;justify-content:space-between;gap:10px;font-size:13.5px}
.sys-state {font-size:12px;color:var(--muted);text-transform:capitalize;white-space:nowrap}
.sys-state.running,.sys-state.completed {color:var(--accent)}
.sys-state.failed,.sys-state.crashed,.sys-state.stopped_by_guard {color:var(--danger)}
.sys-message {font-size:12.5px;color:var(--danger);margin:0}
.sys-new-job {display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.sys-new-job select,.sys-new-job input[type=number] {background:var(--surface-raised);color:var(--ink);border:1px solid var(--line);border-radius:9px;padding:8px 10px;font-size:13px}
.sys-new-job input[type=number] {width:110px}
.sys-inline {display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--muted)}
.sys-exp {font-size:12.5px;line-height:1.5;padding:4px 0;color:#d3d3cd;overflow-wrap:anywhere}
.sys-card > .button.danger {align-self:flex-start}
@media (max-width:760px) {.sys-meter {grid-template-columns:100px minmax(0,1fr)} .sys-meter-value {grid-column:2}}
/* Atlas Vision: attached-image tray and thumbnails in sent messages */
.image-tray {display:flex;flex-wrap:wrap;gap:8px;padding:10px 12px 0}
.image-tray[hidden] {display:none}
.image-chip {position:relative;margin:0;width:64px;height:64px;border-radius:10px;overflow:hidden;background:#ffffff0a;border:1px solid var(--line)}
.image-chip img {width:100%;height:100%;object-fit:cover;display:block}
.image-chip .image-remove {position:absolute;top:2px;right:2px;width:22px;height:22px;border-radius:7px;background:#000000b3;color:#fff}
.image-chip .image-remove svg {width:14px;height:14px}
.message-images {display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;margin-bottom:6px}
.message-images img {max-width:min(240px,60vw);max-height:200px;border-radius:12px;object-fit:cover;border:1px solid var(--line);background:#ffffff0a}

/* ---------- Vaurne Code Download Button ---------- */
.header-right { display: flex; align-items: center; gap: 10px; }
.download-app-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 30px;
  padding: 0 12px;
  border-radius: 15px;
  background: rgba(37, 99, 235, 0.16);
  border: 1px solid rgba(59, 130, 246, 0.38);
  color: #60a5fa;
  font-size: 12.5px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}
.download-app-btn:hover {
  background: rgba(37, 99, 235, 0.32);
  border-color: rgba(59, 130, 246, 0.65);
  color: #93c5fd;
  transform: translateY(-1px);
  box-shadow: 0 3px 12px rgba(37, 99, 235, 0.28);
}
.sidebar-download-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  margin-bottom: 6px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: #94a3b8;
  font-size: 12.5px;
  text-decoration: none;
  transition: all 0.2s ease;
}
.sidebar-download-link:hover {
  background: rgba(37, 99, 235, 0.16);
  color: #60a5fa;
}

/* Netlify Badge Silencer */
#nl-badge-frame,#nl-hud-frame,iframe[title="Powered by Netlify"],iframe[title="Netlify"]{display:none!important;visibility:hidden!important;opacity:0!important;pointer-events:none!important;width:0!important;height:0!important;clip-path:path("M0 0Z")!important;position:absolute!important;left:-99999px!important;}