.canvas-page { margin: 0; overflow: hidden; }
.canvas-page *, .canvas-page *::before, .canvas-page *::after { box-sizing: border-box; }
.canvas-page [hidden] { display: none !important; }
.canvas-page button, .canvas-page input, .canvas-page textarea, .canvas-page select { font: inherit; }
.canvas-page button { cursor: pointer; }
.canvas-page button:disabled { opacity: .46; cursor: not-allowed; }
.canvas-page :focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.canvas-page .sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.canvas-app { position: fixed; inset: 64px 0 0; display: flex; flex-direction: column; color: var(--text); background: var(--bg); }
.canvas-header { min-height: 76px; padding: 14px 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
.canvas-brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.canvas-brand-mark { font-size: 37px; line-height: 1; color: var(--accent); }
.canvas-brand h1 { font-size: 18px; margin: 0 0 3px; letter-spacing: -.4px; }
.canvas-brand #canvasSaveStatus { color: var(--text-secondary); font-size: 11px; }
.canvas-header-actions { display: flex; gap: 8px; }
.canvas-button { min-height: 40px; border: 1px solid var(--border); border-radius: 10px; color: var(--text); background: var(--surface); font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 9px 13px; text-decoration: none; white-space: nowrap; transition: background .15s, border-color .15s; }
.canvas-button:hover:not(:disabled) { background: var(--accent-subtle); border-color: var(--accent); }
.canvas-button-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.canvas-button-primary:hover:not(:disabled) { background: var(--accent-hover); color: #fff; }
[data-theme="dark"] .canvas-button-primary { color: #092f31; }
.canvas-layout { display: grid; grid-template-columns: 318px minmax(0, 1fr); flex: 1; min-height: 0; }
.canvas-conversation { padding: 22px 18px 14px; display: flex; flex-direction: column; min-height: 0; border-right: 1px solid var(--border); background: var(--surface); z-index: 15; }
.canvas-conversation-heading { display: flex; align-items: center; justify-content: space-between; }
.canvas-conversation h2 { font-size: 21px; letter-spacing: -.6px; margin: 0 0 8px; }
.canvas-intro { font-size: 12px; line-height: 1.7; color: var(--text-secondary); margin: 0 0 17px; }
.canvas-usage { font-size: 10px; padding: 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; }
.canvas-usage > div { display: flex; justify-content: space-between; gap: 10px; font-weight: 600; }
.canvas-usage a { color: var(--accent); text-decoration: none; }
.canvas-usage progress { display: block; width: 100%; height: 5px; margin: 9px 0 6px; accent-color: var(--accent); border-radius: 99px; border: 0; overflow: hidden; background: var(--border); }
.canvas-usage progress::-webkit-progress-bar { background: var(--border); }
.canvas-usage progress::-webkit-progress-value { background: var(--accent); border-radius: 99px; }
.canvas-usage #canvasUsageLabel { color: var(--text-secondary); line-height: 1.5; }
.canvas-messages { flex: 1; min-height: 64px; overflow-y: auto; overscroll-behavior: contain; padding: 15px 0; scrollbar-width: thin; }
.canvas-message { margin-bottom: 16px; font-size: 12px; line-height: 1.75; overflow-wrap: anywhere; }
.canvas-message-label { display: block; color: var(--accent); font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; margin-bottom: 5px; }
.canvas-message.user { padding: 11px 13px; background: var(--bg); border-radius: 12px; }
.canvas-message.user .canvas-message-label { color: var(--text-secondary); }
.canvas-message p { white-space: pre-wrap; margin: 0; }
.canvas-message.pending p { color: var(--text-secondary); }
.canvas-activity { display: flex; align-items: center; gap: 8px; min-height: 28px; padding: 2px 0 10px; color: var(--text-secondary); font-size: 12px; }
.canvas-activity-dot { width: 6px; height: 6px; flex: 0 0 6px; border-radius: 50%; background: var(--accent); animation: canvas-thinking-pulse 1.5s ease-in-out infinite; }
@keyframes canvas-thinking-pulse { 50% { opacity: .3; transform: scale(.75); } }
.canvas-voice { border-top: 1px solid var(--border); padding: 12px 0; }
.canvas-voice-heading { display: flex; gap: 6px; align-items: center; font-size: 11px; font-weight: 600; }
.canvas-voice-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-muted); }
.canvas-voice.live .canvas-voice-dot { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-subtle); animation: canvas-voice-pulse 1.8s ease-in-out infinite; }
.canvas-voice #canvasVoiceTime { margin-left: auto; color: var(--text-secondary); font-variant-numeric: tabular-nums; }
.canvas-voice-buttons { display: flex; gap: 6px; margin-top: 9px; }
.canvas-voice-buttons .canvas-button { flex: 1; min-height: 36px; font-size: 11px; }
.canvas-voice p { margin: 7px 0 0; font-size: 10px; color: var(--text-secondary); line-height: 1.5; }
.canvas-voice-transcript { max-height: 72px; overflow-y: auto; }
.canvas-composer { border: 1px solid var(--border); border-radius: 14px; background: var(--bg); padding: 10px; }
.canvas-composer:focus-within { border-color: var(--accent); }
.canvas-composer textarea { width: 100%; resize: none; min-height: 66px; max-height: 160px; padding: 1px 2px 8px; border: 0; background: transparent; box-shadow: none; outline: none; color: var(--text); font-size: 13px; line-height: 1.6; }
.canvas-composer textarea:focus-visible { outline: none; }
.canvas-composer textarea::placeholder { color: var(--text-secondary); }
.canvas-composer-actions { display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.canvas-effort-label select { border: 0; background: transparent; color: var(--text-secondary); font-size: 11px; padding: 8px 3px; max-width: 116px; }
.canvas-effort-label select option { background: var(--surface); color: var(--text); }
.canvas-composer-actions .canvas-button { min-height: 35px; font-size: 11px; }
.canvas-composer-note { display: block; color: var(--text-secondary); font-size: 9px; text-align: center; padding-top: 9px; }
.canvas-workspace { position: relative; min-width: 0; min-height: 0; overflow: hidden; background: #fcfdfd; }
[data-theme="dark"] .canvas-workspace { background: #121d2e; }
.canvas-title-row { position: absolute; top: 18px; left: 26px; right: 26px; display: flex; gap: 16px; justify-content: space-between; align-items: center; z-index: 3; pointer-events: none; }
.canvas-title-row input { max-width: 290px; min-width: 0; background: transparent; color: var(--text); border: 0; border-radius: 6px; padding: 5px 0; font-weight: 600; font-size: 13px; pointer-events: auto; text-overflow: ellipsis; }
.canvas-title-row input:focus { background: var(--surface); padding-left: 8px; }
.canvas-board-tag { font-size: 9px; letter-spacing: 1.8px; color: var(--text-secondary); white-space: nowrap; }
.canvas-board { position: absolute; inset: 0; overflow: hidden; touch-action: none; cursor: grab; background-image: radial-gradient(#d6dedf 1px, transparent 1px); background-size: 22px 22px; }
[data-theme="dark"] .canvas-board { background-image: radial-gradient(#273748 1px, transparent 1px); }
.canvas-board[data-tool="draw"], .canvas-board[data-tool="note"] { cursor: crosshair; }
.canvas-board[data-tool="erase"] { cursor: cell; }
.canvas-board.is-dragging { cursor: grabbing; }
.canvas-plane { position: absolute; left: 0; top: 0; width: 1px; height: 1px; transform-origin: 0 0; }
.canvas-empty { position: absolute; left: 50%; top: 47%; transform: translate(-50%, -50%); width: min(460px, calc(100% - 42px)); text-align: center; cursor: default; }
.canvas-empty h2 { font-size: clamp(25px, 3.2vw, 39px); line-height: 1.2; letter-spacing: -1.7px; font-weight: 600; margin: 23px 0 12px; }
.canvas-empty > p { font-size: 13px; color: var(--text-secondary); margin: 0 0 25px; }
.canvas-empty-glyph { display: flex; gap: 7px; justify-content: center; transform: rotate(-12deg); }
.canvas-empty-glyph i { display: block; width: 18px; height: 42px; border: 1px solid var(--accent); border-radius: 6px; background: var(--accent-subtle); }
.canvas-empty-glyph i:nth-child(2) { transform: translateY(-9px); opacity: .8; }.canvas-empty-glyph i:nth-child(3) { transform: translateY(5px); opacity: .6; }.canvas-empty-glyph i:nth-child(4) { transform: translateY(-3px); opacity: .35; }
.canvas-starters { display: grid; gap: 8px; max-width: 335px; margin: 0 auto; }
.canvas-starters button { display: flex; justify-content: space-between; text-align: left; align-items: center; gap: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 13px 15px; font-size: 11px; color: var(--text-secondary); box-shadow: var(--shadow-xs); }
.canvas-starters button:hover { color: var(--accent); border-color: var(--accent); }
.canvas-tools { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 3px; padding: 5px; background: var(--surface); border: 1px solid var(--border); border-radius: 15px; box-shadow: var(--shadow-md); z-index: 4; }
.canvas-tool { display: flex; align-items: center; flex-direction: column; gap: 2px; min-width: 46px; height: 47px; border: 0; border-radius: 10px; background: transparent; color: var(--text-secondary); padding: 4px 6px; }
.canvas-tool span:first-child { font-size: 20px; line-height: 22px; }.canvas-tool span:last-child { font-size: 9px; }
.canvas-tool:hover, .canvas-tool.active { color: var(--accent); background: var(--accent-subtle); }
.canvas-tool-divider { height: 25px; width: 1px; background: var(--border); margin: 0 4px; }
.canvas-zoom { position: absolute; right: 20px; bottom: 30px; display: flex; border: 1px solid var(--border); background: var(--surface); border-radius: 10px; box-shadow: var(--shadow-sm); z-index: 4; }
.canvas-zoom button { border: 0; background: transparent; color: var(--text-secondary); padding: 9px; min-width: 32px; font-size: 14px; min-height: 36px; }
.canvas-zoom #canvasFit { font-size: 10px; min-width: 47px; }
.canvas-card { position: absolute; border: 1px solid #dce4e4; border-radius: 14px; box-shadow: 0 3px 14px #10202008; background: #fff; color: #152a32; overflow: hidden; cursor: grab; user-select: none; }
.canvas-card:focus-visible { outline-offset: 5px; }
[data-theme="dark"] .canvas-card { background: #1b2c40; color: #e2e8f0; border-color: #33495b; }
.canvas-card-header { display: flex; align-items: center; justify-content: space-between; min-height: 43px; gap: 10px; padding: 12px 16px 0; font-size: 12px; font-weight: 700; }
.canvas-card-header span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.canvas-card-remove { background: none; color: #64748b; border: 0; padding: 3px 5px; line-height: 1; font-size: 17px; opacity: 0; }
.canvas-card:hover .canvas-card-remove, .canvas-card:focus-within .canvas-card-remove { opacity: 1; }
.canvas-card-body { padding: 12px 16px 16px; max-height: calc(100% - 43px); overflow: auto; font-size: 13px; line-height: 1.7; }
.canvas-card-text { white-space: pre-wrap; overflow-wrap: anywhere; user-select: text; margin: 0; }
.canvas-card-math { font-family: 'Courier New', monospace; white-space: pre-wrap; font-size: 17px; }
.canvas-card svg { display: block; width: 100%; height: auto; overflow: visible; }
.canvas-card img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 6px; display: block; }
.canvas-card-image .canvas-card-body { height: calc(100% - 43px); display: flex; align-items: center; justify-content: center; }
.canvas-stroke { position: absolute; overflow: visible; pointer-events: none; }
.canvas-stroke polyline { pointer-events: stroke; cursor: pointer; }
.canvas-banner { position: absolute; left: 16px; right: 16px; top: 58px; z-index: 8; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; box-shadow: var(--shadow-md); font-size: 12px; }
.canvas-banner > span { flex: 1; min-width: 150px; line-height: 1.6; }
.canvas-banner button { padding: 7px 8px; border: 1px solid var(--border); border-radius: 7px; background: var(--bg); color: var(--text); font-size: 10px; }
.canvas-banner #canvasBannerClose { font-size: 19px; padding: 1px 6px; background: transparent; border: 0; }
.canvas-gate { position: absolute; inset: 76px 0 0; display: grid; place-items: center; background: var(--bg); z-index: 20; padding: 24px; text-align: center; }
.canvas-gate > div { max-width: 450px; }
.canvas-eyebrow { font-size: 11px; color: var(--accent); font-weight: 700; letter-spacing: 1.5px; }
.canvas-gate h2 { font-size: clamp(29px, 5vw, 43px); letter-spacing: -1.5px; margin: 18px 0; line-height: 1.1; }
.canvas-gate p { color: var(--text-secondary); font-size: 14px; line-height: 1.8; margin-bottom: 22px; }
.canvas-dialog { width: min(480px, calc(100vw - 28px)); max-height: min(80dvh, 650px); border: 1px solid var(--border); border-radius: 18px; padding: 23px; background: var(--surface); color: var(--text); margin: auto; box-shadow: var(--shadow-xl); }
.canvas-dialog::backdrop { background: #091a2b65; backdrop-filter: blur(4px); }
.canvas-dialog-heading { display: flex; gap: 15px; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.canvas-dialog-heading h2 { font-size: 19px; margin: 0; }
.canvas-icon-button { border: 0; background: transparent; color: var(--text-secondary); font-size: 24px; min-width: 40px; min-height: 40px; border-radius: 8px; }
.canvas-dialog textarea { width: 100%; min-height: 150px; border: 1px solid var(--border); border-radius: 9px; padding: 12px; color: var(--text); background: var(--bg); font-size: 16px; resize: vertical; }
.canvas-dialog-actions { display: flex; justify-content: flex-end; margin-top: 12px; }
.canvas-boards-list { display: grid; gap: 8px; }
.canvas-board-row { display: flex; gap: 8px; border: 1px solid var(--border); border-radius: 10px; padding: 8px; }
.canvas-board-row > button:first-child { flex: 1; min-width: 0; text-align: left; color: var(--text); border: 0; background: transparent; padding: 4px; }
.canvas-board-row strong { display: block; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.canvas-board-row small { color: var(--text-secondary); font-size: 10px; }
.canvas-mobile-only { display: none; }
@keyframes canvas-voice-pulse { 50% { box-shadow: 0 0 0 6px var(--accent-subtle); } }
@media (max-width: 1100px) { .canvas-layout { grid-template-columns: 284px minmax(0, 1fr); } .canvas-zoom { top: 64px; bottom: auto; right: 16px; } .canvas-board-tag { display: none; } }
@media (max-height: 720px) and (min-width: 761px) { .canvas-conversation { padding-top: 13px; }.canvas-intro { margin-bottom: 10px; font-size: 11px; }.canvas-voice { padding: 8px 0; }.canvas-voice p { display: none; }.canvas-composer textarea { min-height: 48px; }.canvas-empty { top: 44%; }.canvas-empty h2 { font-size: 30px; }.canvas-starters { gap: 5px; }.canvas-starters button { padding: 10px 13px; } }
@media (max-width: 760px) {
    .canvas-app { top: 64px; }.canvas-header { min-height: 64px; padding: 9px 13px; gap: 10px; }.canvas-brand { gap: 7px; }.canvas-brand-mark { font-size: 29px; }.canvas-brand h1 { font-size: 14px; }.canvas-brand #canvasSaveStatus { font-size: 9px; }.canvas-header-actions { gap: 5px; }.canvas-header-actions .canvas-button { min-height: 38px; font-size: 10px; padding: 6px 9px; }.canvas-header-actions #canvasNew { display: none; }.canvas-layout { display: block; position: relative; }.canvas-workspace { width: 100%; height: 100%; }.canvas-title-row { top: 16px; left: 17px; right: 120px; }.canvas-title-row input { width: 100%; font-size: 12px; }.canvas-mobile-only { display: flex; }.canvas-conversation { display: none; position: absolute; inset: auto 0 0; height: min(84dvh, 720px); max-height: 100%; border: 1px solid var(--border); border-bottom: 0; border-radius: 20px 20px 0 0; box-shadow: 0 -15px 80px #0f172a30; padding: 15px 18px max(15px, env(safe-area-inset-bottom)); }.canvas-conversation.is-open { display: flex; }.canvas-conversation h2 { font-size: 21px; margin-bottom: 0; }.canvas-intro { margin: 0 0 11px; font-size: 11px; }.canvas-usage { padding: 8px 10px; }.canvas-messages { padding: 11px 0; }.canvas-message { font-size: 13px; }.canvas-composer textarea { font-size: 16px; min-height: 56px; max-height: 110px; }.canvas-effort-label select { font-size: 13px; }.canvas-conversation-toggle { position: absolute; right: 14px; bottom: max(86px, calc(74px + env(safe-area-inset-bottom))); z-index: 5; border-radius: 99px; padding: 12px 18px; box-shadow: var(--shadow-md); }.canvas-tools { bottom: max(16px, env(safe-area-inset-bottom)); }.canvas-tool { min-width: 48px; height: 48px; }.canvas-tool span:last-child { font-size: 10px; }.canvas-zoom { top: 15px; right: 13px; }.canvas-zoom button { min-height: 34px; min-width: 29px; padding: 6px; }.canvas-zoom #canvasFit { min-width: 39px; }.canvas-empty { top: 42%; }.canvas-empty h2 { font-size: 30px; letter-spacing: -1.2px; }.canvas-empty > p { font-size: 12px; }.canvas-starters button { min-height: 44px; }.canvas-gate { inset: 64px 0 0; }.canvas-card-remove { opacity: 1; }.canvas-voice-buttons .canvas-button { min-height: 40px; }.canvas-banner { left: 10px; right: 10px; }.canvas-board-row > .canvas-icon-button { min-width: 44px; min-height: 44px; }
}
@media (max-width: 390px) { .canvas-header-actions #canvasExport { display: none; }.canvas-brand #canvasSaveStatus { max-width: 165px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }.canvas-empty h2 { font-size: 26px; }.canvas-empty > p { margin-bottom: 17px; } }
@media (prefers-reduced-motion: reduce) { .canvas-page *, .canvas-page *::before, .canvas-page *::after { animation: none !important; transition: none !important; } }