/* Hallmark · shape: app screen · genre: modern-minimal · theme: Terrazzo (deal 1/3) · redesign: full
 * nav: six-task top bar · signature: live teaching note beside an open writing sheet · states: login, loading, empty, error, saved
 * axes: light/geometric-sans/warm · posture: restrained · terrazzo: off-white, ink controls, Chinese system face · contrast: audited at sweep · v2.0.0 */
/* Hallmark · pre-emit critique: P4 H4 E4 S4 R4 V3 · weakest: V, retained task shell but removed rounded form containers and separated preview from writing */
/* Hallmark · answered F4 · primary actions share one ink fill; secondary commands use a rule or plain text so writing remains the main action. */
/* Hallmark · dropped input[name=endpoint], input[name=model], input[name=key] · user explicitly requested server-internal API configuration, removed credentials from the browser. */
@import url('./tokens.css');
@import url('./base.css');

*{box-sizing:border-box}html,body{overflow-x:clip}body{margin:0;background:var(--color-paper);color:var(--color-ink);font:400 16px/1.65 var(--font-body);caret-color:var(--color-accent);scrollbar-color:var(--color-rule-2) var(--color-paper)}
::selection{background:var(--color-paper-3);color:var(--color-ink)}
button,input,textarea,select{font:inherit}button,a,input,textarea,select,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}button:active:not(:disabled){transform:translateY(1px)}
:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}input:focus-visible,textarea:focus-visible,select:focus-visible{outline-offset:1px}
a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:600;overflow-wrap:break-word;min-width:0;text-wrap:balance;color:var(--color-ink)}h1{font-size:32px;line-height:1.45;letter-spacing:0}h2{font-size:23px;line-height:1.5}h3{font-size:17px;line-height:1.55}p{max-width:none}small,.small{font-size:13px}.muted{color:var(--color-muted)}.help{font-size:13px;color:var(--color-muted);min-height:1lh;margin-top:var(--space-xs)}.stack{display:flex;flex-direction:column;gap:var(--space-md)}.row{display:flex;gap:var(--space-sm);align-items:center}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.grow{flex:1;min-width:0}.spacer{margin-top:var(--space-lg)}.wide{width:100%}[hidden]{display:none!important}
.site-header{background:var(--color-cotton);border-bottom:1px solid var(--color-rule)}.header-inner{max-width:var(--container);padding:0 var(--gutter);height:84px;display:flex;align-items:center;gap:44px;margin:auto}.brand{display:flex;align-items:center;gap:var(--space-sm);font-size:21px;font-weight:600;white-space:nowrap}.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--color-accent);color:var(--color-accent-ink);display:grid;place-items:center;font-size:24px}.brand-sub{font-size:15px;font-weight:400;color:var(--color-muted);margin-left:var(--space-xs)}.site-header nav{display:flex;gap:var(--space-panel);align-self:stretch;align-items:center}.site-header nav a{font-size:15px;white-space:nowrap;position:relative;padding:var(--space-lg) 0;color:var(--color-muted)}.site-header nav a:hover,.site-header nav a.active{color:var(--color-accent)}.site-header nav a.active:after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--color-accent)}#settings-button{margin-left:auto;font-size:13px}
.app-shell{max-width:var(--container);margin:0 auto;padding:36px var(--gutter) 60px;min-height:calc(100svh - 84px)}.page-head{margin-bottom:28px;display:flex;align-items:center;justify-content:space-between;gap:20px}.page-head p{margin-top:var(--space-xs);color:var(--color-muted);font-size:14px}.button{display:inline-flex;justify-content:center;align-items:center;gap:var(--space-xs);min-height:42px;padding:var(--space-xs) var(--space-md);border:1px solid var(--color-rule-2);border-radius:var(--radius-input);background:var(--color-cotton);color:var(--color-ink);font-size:14px;line-height:1.4;white-space:nowrap;transition:background-color var(--dur-micro),transform var(--dur-micro)}.button:hover{background:var(--color-paper-2)}.button.primary{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-accent-ink)}.button.primary:hover{background:var(--color-accent-2)}.button.quiet{background:var(--color-transparent);border-color:var(--color-transparent)}.button.quiet:hover{background:var(--color-paper-2)}.button.danger{color:var(--color-error)}.button.small{min-height:36px;font-size:13px;padding:var(--space-xs) var(--space-xs)}.icon{width:18px;height:18px;flex-shrink:0;display:inline-block;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round}
.create-layout{display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,1fr);gap:48px}.compose-sheet{background:var(--color-cotton);border:1px solid var(--color-rule);border-radius:var(--radius-card);padding:28px}.field{display:block;margin-bottom:20px}.field>span,.field>label{display:block;font-size:14px;font-weight:600;margin-bottom:var(--space-xs)}.field input,.field select,.field textarea,input.search{width:100%;border:1px solid var(--color-rule-2);border-radius:var(--radius-input);padding:var(--space-sm) var(--space-sm);background:var(--color-cotton);color:var(--color-ink);font-size:15px;line-height:1.65;min-height:44px}.field textarea{resize:vertical;min-height:100px}.field .topic-input{font-size:19px;min-height:116px;border:0;padding:0;border-radius:0;background:var(--color-transparent);line-height:1.8}.field .topic-input:focus-visible{outline-offset:6px}input::placeholder,textarea::placeholder{color:var(--color-muted)}.two-col{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--space-md)}.form-divider{border:0;border-top:1px solid var(--color-rule);margin:20px 0}.source-picker summary{font-size:14px;cursor:pointer;padding:var(--space-xs) 0;color:var(--color-ink-2)}.source-options{max-height:210px;overflow-y:auto;border-top:1px solid var(--color-rule)}.check-row{display:flex;align-items:flex-start;gap:var(--space-xs);padding:var(--space-xs) 0;font-size:13px;border-bottom:1px solid var(--color-rule)}input[type=checkbox]{accent-color:var(--color-accent);width:17px;height:17px;flex-shrink:0}.compose-actions{display:flex;align-items:center;gap:var(--space-sm);margin-top:var(--space-lg)}.compose-actions .primary{flex:1}.caption-line{font-size:13px;display:flex;align-items:center;gap:var(--space-xs);color:var(--color-muted)}.status-tag{font-size:12px;display:inline-flex;align-items:center;white-space:nowrap;gap:var(--space-2xs);border-radius:4px;padding:var(--space-2xs) var(--space-xs);background:var(--color-paper-2);color:var(--color-muted)}.status-tag.ready{color:var(--color-success);background:var(--color-success-bg)}.status-tag.sample{color:var(--color-warning-ink);background:var(--color-warning-bg)}
.preview-intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-md);font-size:14px}.preview-stage{background:var(--color-paper-2);border-radius:var(--radius-card);padding:var(--space-lg);display:flex;align-items:center;justify-content:center;min-height:460px}.preview-stage canvas{width:min(100%,300px);height:auto;box-shadow:var(--shadow-preview);border-radius:3px}.preview-footer{display:flex;justify-content:space-between;align-items:center;gap:var(--space-sm);margin-top:var(--space-md);font-size:13px;color:var(--color-muted)}.quick-topics{margin-top:28px}.section-heading{font-size:15px;font-weight:600;margin-bottom:var(--space-sm)}.topic-list{display:flex;flex-wrap:wrap;gap:var(--space-xs)}.topic-chip{font-size:13px;padding:var(--space-xs) var(--space-sm);border:1px solid var(--color-rule);background:var(--color-transparent);border-radius:6px;color:var(--color-ink-2)}.topic-chip:hover{border-color:var(--color-accent);color:var(--color-accent)}.recent-section{margin-top:var(--space-xl)}.recent-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-lg);margin-top:var(--space-md)}.recent-item{display:block;width:100%;text-align:left;border:0;border-top:1px solid var(--color-rule);background:var(--color-transparent);padding:var(--space-md) 0;color:var(--color-ink)}.recent-item:hover strong{color:var(--color-accent)}.recent-item strong{font-size:15px;font-weight:600;display:block}.recent-item span{font-size:12px;color:var(--color-muted)}
.angle-list{border-top:1px solid var(--color-rule);margin-top:var(--space-lg);padding-top:20px}.angle-option{display:block;text-align:left;width:100%;padding:var(--space-md) 0;border:0;border-bottom:1px solid var(--color-rule);background:var(--color-transparent);color:var(--color-ink)}.angle-option:hover{color:var(--color-accent)}.angle-option p{font-size:13px;color:var(--color-muted);margin-top:var(--space-xs)}.busy-state{display:flex;gap:var(--space-sm);align-items:center;background:var(--color-paper-2);padding:var(--space-md);border-radius:8px;margin-top:var(--space-md)}.spinner{width:18px;height:18px;border:2px solid var(--color-rule);border-top-color:var(--color-accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.editor-top{display:flex;align-items:center;justify-content:space-between;gap:var(--space-sm);margin-bottom:var(--space-lg)}.editor-top h1{font-size:20px;max-width:540px}.editor-top small{display:block}.editor-grid{display:grid;grid-template-columns:88px minmax(0,1fr) minmax(350px,.87fr);gap:var(--space-lg);align-items:start}.card-rail{display:flex;flex-direction:column;gap:var(--space-sm)}.thumb{white-space:nowrap;padding:var(--space-2xs);border:2px solid var(--color-transparent);border-radius:7px;background:var(--color-paper-2);color:var(--color-muted);font-size:12px;line-height:1.4;width:100%}.thumb.active{border-color:var(--color-accent);color:var(--color-accent)}.thumb canvas{width:100%;height:auto;display:block;margin-bottom:var(--space-2xs)}.editor-canvas{min-height:570px;padding:var(--space-lg);background:var(--color-paper-2);border-radius:var(--radius-card);display:grid;place-items:center}.editor-canvas canvas{max-width:100%;width:385px;height:auto;box-shadow:var(--shadow-preview)}.preview-controls{margin:var(--space-md) 0;display:flex;gap:var(--space-xs);justify-content:center;align-items:center}.preview-controls select{background:var(--color-paper);color:var(--color-ink);border:1px solid var(--color-rule-2);border-radius:6px;padding:var(--space-xs);font-size:13px}.editor-panel{background:var(--color-cotton);border:1px solid var(--color-rule);border-radius:var(--radius-card);padding:20px;min-width:0}.tabs{display:flex;gap:var(--space-lg);border-bottom:1px solid var(--color-rule);margin-bottom:var(--space-md)}.tabs button{background:var(--color-transparent);border:0;border-bottom:2px solid var(--color-transparent);color:var(--color-muted);padding:0 0 var(--space-sm);font-size:14px;white-space:nowrap}.tabs button.active{color:var(--color-accent);border-bottom-color:var(--color-accent)}.editor-panel .field{margin-bottom:var(--space-md)}.editor-panel .field>span{font-size:13px}.editor-panel textarea{font-size:14px}.editor-panel .body-field{min-height:265px}.editor-panel .card-field{min-height:85px}.editor-panel .help{font-size:12px}.refine-box{margin-top:20px;padding-top:var(--space-md);border-top:1px solid var(--color-rule)}.refine-box textarea{min-height:72px}.note-warning{background:var(--color-warning-bg);color:var(--color-warning-ink);font-size:13px;padding:var(--space-sm);border-radius:6px;margin:var(--space-sm) 0}.quality-list{padding-left:20px;font-size:13px;margin:var(--space-xs) 0;color:var(--color-muted)}.source-citation{padding:var(--space-sm) 0;border-bottom:1px solid var(--color-rule)}.source-citation p{font-size:13px;margin-top:var(--space-xs);white-space:pre-wrap}.status-select{background:var(--color-cotton);border:1px solid var(--color-rule-2);border-radius:6px;padding:var(--space-xs);color:var(--color-ink);font-size:13px}.history-tools{display:flex;gap:var(--space-2xs);margin-bottom:var(--space-sm)}.editor-empty{padding:48px 20px;text-align:center;color:var(--color-muted)}
.toolbar{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-lg)}.toolbar .search{max-width:380px}.filter-tabs{display:flex;gap:var(--space-xs);margin-left:auto}.filter-tabs button{border:0;border-radius:5px;padding:var(--space-xs) var(--space-sm);background:var(--color-transparent);color:var(--color-muted);font-size:13px}.filter-tabs button.active{background:var(--color-paper-3);color:var(--color-ink)}.note-table{width:100%;border-collapse:collapse;font-size:14px}.note-table th{text-align:left;font-size:13px;font-weight:400;color:var(--color-muted);padding:var(--space-sm) var(--space-md);border-bottom:1px solid var(--color-rule);white-space:nowrap}.note-table td{padding:20px var(--space-md);border-bottom:1px solid var(--color-rule);vertical-align:middle}.note-table th:first-child,.note-table td:first-child{padding-left:0}.note-table th:last-child,.note-table td:last-child{padding-right:0;text-align:right}.note-title{font-weight:600;font-size:15px;background:var(--color-transparent);border:0;padding:0;color:var(--color-ink);text-align:left;cursor:pointer}.note-title:hover{color:var(--color-accent)}.note-meta{display:block;color:var(--color-muted);font-size:12px;margin-top:var(--space-2xs)}.empty-state{padding:76px var(--space-lg);border-top:1px solid var(--color-rule);text-align:center}.empty-state h2{margin-bottom:var(--space-xs)}.empty-state p{font-size:14px;color:var(--color-muted);margin-bottom:var(--space-lg)}.source-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 var(--space-panel)}.source-item{padding:var(--space-lg) 0;border-top:1px solid var(--color-rule);min-width:0}.source-item h3{margin:var(--space-sm) 0 var(--space-xs)}.source-item p{font-size:14px;color:var(--color-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;white-space:pre-wrap}.source-item footer{display:flex;align-items:center;gap:var(--space-xs);margin-top:var(--space-md)}.source-item footer .button:first-child{margin-right:auto}.source-origin{display:block;font-size:12px;color:var(--color-muted);margin-top:var(--space-xs);overflow-wrap:anywhere}.library-note{margin-bottom:var(--space-lg);color:var(--color-muted);font-size:14px}
dialog{padding:0;border:0;border-radius:14px;background:var(--color-cotton);color:var(--color-ink);width:min(650px,calc(100% - 28px));max-height:90svh;box-shadow:var(--shadow-dialog)}dialog::backdrop{background:var(--color-overlay)}.dialog-head{display:flex;justify-content:space-between;align-items:center;padding:var(--space-lg) var(--space-lg);border-bottom:1px solid var(--color-rule)}.dialog-head h2{font-size:21px}.dialog-body{padding:var(--space-lg) var(--space-lg)}.dialog-body h3{margin:var(--space-xs) 0 var(--space-md)}.dialog-foot{display:flex;justify-content:flex-end;gap:var(--space-xs);padding:var(--space-md) var(--space-lg);border-top:1px solid var(--color-rule)}.settings-divider{margin:var(--space-lg) 0;border:0;border-top:1px solid var(--color-rule)}.connection-result{font-size:13px;min-height:24px;margin:var(--space-xs) 0;white-space:pre-wrap}.connection-result.error{color:var(--color-error)}.connection-result.success{color:var(--color-success)}.settings-avatar{display:flex;gap:var(--space-md);align-items:center;margin-bottom:20px}.settings-avatar img{width:56px;height:70px;object-fit:contain;background:var(--color-paper-2);border-radius:8px}.settings-avatar label{cursor:pointer}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:min(600px,calc(100% - 32px));background:var(--color-navy);color:var(--color-cotton);padding:var(--space-sm) 20px;border-radius:8px;z-index:var(--z-toast);font-size:14px;box-shadow:var(--shadow-preview)}.storage-banner{padding:var(--space-xs) var(--space-lg);background:var(--color-warning-bg);color:var(--color-warning-ink);text-align:center;font-size:13px}.loading-state,.no-script{padding:60px;text-align:center}.inline-error{color:var(--color-error);font-size:13px;margin-top:var(--space-xs)}.footer-note{font-size:12px;color:var(--color-muted);margin-top:var(--space-panel)}.backup-actions{display:flex;gap:var(--space-xs);flex-wrap:wrap}.read-source{white-space:pre-wrap;font-size:14px}.source-selected{color:var(--color-accent)}
@media(min-width:1600px){.app-shell{padding-top:48px}.create-layout{gap:var(--space-2xl)}.preview-stage{min-height:510px}.preview-stage canvas{width:330px}}
@media(max-width:1050px){:root{--gutter:24px}.header-inner{gap:var(--space-lg)}.brand-sub{display:none}.create-layout{gap:28px;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}.editor-grid{grid-template-columns:70px minmax(0,1fr) minmax(300px,.9fr);gap:var(--space-md)}.editor-canvas{min-height:450px;padding:var(--space-md)}.editor-panel{padding:var(--space-md)}.page-head h1{font-size:27px}}
@media(max-width:800px){.field input,.field select,.field textarea,input.search{font-size:16px}:root{--gutter:20px}.header-inner{height:auto;min-height:76px;flex-wrap:wrap;gap:0 var(--space-md);padding-top:var(--space-md)}.brand{font-size:18px}.brand-mark{width:34px;height:34px;font-size:20px}.site-header nav{order:3;width:100%;gap:28px;height:52px}.site-header nav a{padding:var(--space-sm) 0}.app-shell{padding-top:var(--space-lg)}.page-head{align-items:flex-start;flex-wrap:wrap;margin-bottom:20px}.page-head h1{font-size:25px}.create-layout{grid-template-columns:minmax(0,1fr)}.compose-sheet{padding:var(--space-lg)}.preview-stage{min-height:0}.preview-stage canvas{width:260px}.create-preview{margin-top:0}.recent-list{grid-template-columns:minmax(0,1fr)}.recent-item{padding:var(--space-sm) 0}.editor-top{flex-wrap:wrap}.editor-top h1{font-size:18px}.editor-grid{grid-template-columns:64px minmax(0,1fr)}.editor-panel{grid-column:1/-1;padding:20px}.editor-canvas{min-height:380px}.source-list{grid-template-columns:minmax(0,1fr)}.toolbar{flex-wrap:wrap}.filter-tabs{margin-left:0}.toolbar .search{max-width:none}.note-table .date-column{display:none}.note-table th,.note-table td{padding:var(--space-md) var(--space-xs)}.note-table .note-actions{display:flex;flex-direction:column;align-items:flex-end}.dialog-head,.dialog-body,.dialog-foot{padding:var(--space-md) 20px}.dialog-foot{flex-wrap:wrap}.page-head .row{flex-wrap:wrap}.button{min-height:44px}}
@media(max-width:440px){:root{--gutter:16px}.brand{gap:var(--space-xs)}.header-inner{column-gap:var(--space-xs)}#settings-button{font-size:12px;padding-inline:var(--space-xs)}.two-col{gap:var(--space-xs)}.compose-sheet{padding:var(--space-md)}.compose-actions{flex-wrap:wrap}.compose-actions .primary{flex-basis:100%}.editor-top .row{flex-wrap:wrap}.editor-top>.row{width:100%}.editor-top .primary{margin-left:auto}.card-rail{gap:var(--space-xs)}.editor-grid{gap:var(--space-xs)}.editor-canvas{padding:var(--space-xs);min-height:340px}.note-table .grade-column{display:none}.filter-tabs button{padding:var(--space-xs) var(--space-xs)}.page-head h1{font-size:23px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* The workspace uses one quiet canvas; a rule separates writing from its output. */
body{line-height:1.65}
h1,h2,h3{font-weight:700;letter-spacing:0}
.site-header{background:var(--color-plate);border-bottom:1px solid var(--color-rule)}
.header-inner{height:80px;gap:var(--space-xl);max-width:var(--container);padding-inline:var(--gutter)}
.brand{font-size:22px;gap:var(--space-sm);white-space:nowrap;letter-spacing:-.02em}
.brand-mark{background:var(--color-ink);color:var(--color-plate);border-radius:0;width:38px;height:38px;font-size:23px}
.brand-sub{display:none}
.site-header nav{gap:var(--space-lg);height:80px;flex:1;justify-content:center;min-width:0}
.site-header nav a{font-size:14px;font-weight:500;white-space:nowrap;color:var(--color-muted);padding:var(--space-lg) 0;border-bottom:2px solid var(--color-transparent)}
.site-header nav a.active{color:var(--color-ink);border-bottom-color:var(--color-ink)}
.header-actions{display:flex;gap:var(--space-2xs);align-items:center}
.header-actions .button{font-size:13px;padding-inline:var(--space-xs)}
.app-shell{max-width:var(--container);padding:var(--space-xl) var(--gutter) var(--space-2xl)}
.page-head{margin-bottom:var(--space-xl);align-items:center}
.page-head h1{font-size:30px;max-width:none;line-height:1.5}
.page-head p{font-size:15px;margin-top:var(--space-xs);color:var(--color-muted)}
.page-head>.caption-line{font-size:13px;padding:var(--space-xs) 0;border-bottom:1px solid var(--color-rule)}
.button{border-radius:0;min-height:44px;padding:var(--space-xs) var(--space-md);font-size:14px;font-weight:500;border-color:var(--color-field-edge);background:var(--color-transparent)}
.button.primary{background:var(--color-ink);border-color:var(--color-ink);color:var(--color-plate)}
.button.primary:hover{background:var(--color-ink-2);border-color:var(--color-ink-2)}
.button.small{min-height:36px;padding:var(--space-2xs) var(--space-sm)}
.button,.topic-chip,.filter-tabs button,.tabs button,.angle-option{white-space:nowrap}
.icon{width:18px;height:18px}
.text-link{background:var(--color-transparent);border:0;color:var(--color-accent);font-size:14px;padding:var(--space-xs) 0;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;cursor:pointer;white-space:nowrap}
.text-link:hover{color:var(--color-accent-2)}
.create-layout{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:var(--space-2xl);align-items:start}
.compose-sheet{background:var(--color-transparent);border:0;border-top:2px solid var(--color-ink);border-radius:0;padding:var(--space-lg) 0 0}
.compose-heading{display:flex;justify-content:space-between;align-items:center;gap:var(--space-md);margin-bottom:var(--space-lg)}
.compose-heading h2{font-size:17px;max-width:none;line-height:1.5}
.compose-heading .caption-line{font-size:12px}
.field{margin-bottom:var(--space-lg)}
.field>span,.field>label{font-weight:500;font-size:14px;margin-bottom:var(--space-xs)}
.field input,.field select,.field textarea,input.search{border-color:var(--color-field-edge);border-radius:0;background:var(--color-plate);padding:var(--space-control) var(--space-sm);min-height:44px;font-size:15px}
.field .topic-input{font-size:23px;line-height:1.65;min-height:105px;background:var(--color-transparent);padding:0;border:0;resize:vertical}
.field .topic-input::placeholder{color:var(--color-muted)}
.field input:hover,.field select:hover,.field textarea:hover,input.search:hover{border-color:var(--color-ink-2)}
.field input:disabled,.field textarea:disabled,.field select:disabled{opacity:.55;cursor:not-allowed}
.field input[aria-invalid=true],.field textarea[aria-invalid=true]{border-color:var(--color-error)}
.three-col{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-sm)}
.two-col{gap:var(--space-md)}
#material{min-height:112px}
.source-picker{border-bottom:1px solid var(--color-rule);padding-bottom:var(--space-sm)}
.source-picker summary{font-size:14px;min-height:44px;line-height:28px}
#selected-count{color:var(--color-muted);font-size:12px;margin-left:var(--space-xs)}
.compose-actions{margin-top:var(--space-lg);gap:var(--space-md)}
.compose-actions .primary{flex:0 1 auto;min-width:200px}
.compose-sheet>.row.spacer{margin-top:var(--space-xs);min-height:44px}
.quick-topics{margin-top:var(--space-xl)}
.quick-topics .section-heading{margin:0}
.topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 var(--space-lg);margin-top:var(--space-sm)}
.topic-chip{padding:var(--space-sm) 0;border:0;border-bottom:1px solid var(--color-rule);text-align:left;border-radius:0;white-space:normal;line-height:1.7;font-size:13px}
.topic-chip:hover{background:var(--color-transparent);color:var(--color-accent)}
.create-preview{border-top:2px solid var(--color-ink);padding-top:var(--space-lg)}
.preview-intro{margin-bottom:var(--space-lg);font-size:14px;min-height:26px}
.preview-intro h2{font-size:17px;line-height:1.5}
.preview-stage{border-radius:0;min-height:470px;background:var(--color-paper-2);padding:var(--space-lg)}
.preview-stage canvas{width:min(100%,310px);border-radius:0}
.preview-footer{margin-top:var(--space-md);gap:var(--space-xs);font-size:13px}
.status-tag{border-radius:0;background:var(--color-paper-2);padding:var(--space-2xs) var(--space-xs);font-size:12px}
.recent-section{border-top:1px solid var(--color-rule);padding-top:var(--space-lg);margin-top:var(--space-xl)}
.recent-item{border-top:0;padding:var(--space-xs) 0}
.angle-option{white-space:normal}
.busy-state{border-radius:0}
.editor-top{padding-bottom:var(--space-lg);border-bottom:1px solid var(--color-rule);margin-bottom:var(--space-lg)}
.editor-top h1{font-size:19px;font-weight:700;line-height:1.5}
.editor-top small{font-size:12px}
.editor-grid{grid-template-columns:72px minmax(0,1.05fr) minmax(0,1fr);gap:var(--space-lg)}
.thumb{border-radius:0;padding:var(--space-2xs);border-width:1px;background:var(--color-transparent)}
.thumb.active{border-color:var(--color-ink);color:var(--color-ink)}
.editor-canvas{border-radius:0;min-height:550px;padding:var(--space-lg);background:var(--color-paper-2)}
.editor-canvas canvas{width:360px}
.editor-panel{border:0;border-top:2px solid var(--color-ink);border-radius:0;background:var(--color-transparent);padding:var(--space-md) 0 0 var(--space-xs)}
.tabs{margin-bottom:var(--space-xs);gap:var(--space-lg)}
.tabs button{font-weight:500;min-height:44px;padding:var(--space-xs) 0;color:var(--color-muted)}
.tabs button.active{color:var(--color-ink);border-bottom-color:var(--color-ink)}
.history-tools{padding:var(--space-xs) 0;margin-bottom:var(--space-xs)}
.editor-panel .field>span{font-size:13px}
.editor-panel .body-field{min-height:270px;line-height:1.8}
.preview-controls select,.status-select{border-radius:0;border-color:var(--color-field-edge);min-height:36px}
.preview-controls{flex-wrap:wrap}
.refine-box{margin-top:var(--space-lg)}
.note-warning{border-radius:0;line-height:1.7}
.toolbar{gap:var(--space-lg);margin-bottom:var(--space-lg)}
.toolbar .search{max-width:380px}
.filter-tabs{gap:0;overflow-x:auto;max-width:100%;flex-shrink:0;white-space:nowrap;padding-bottom:var(--space-2xs)}
.filter-tabs button{min-height:40px;border-radius:0;padding:var(--space-xs) var(--space-sm);border-bottom:2px solid var(--color-transparent);font-size:13px;flex-shrink:0}
.filter-tabs button.active{background:var(--color-transparent);border-bottom-color:var(--color-ink);color:var(--color-ink)}
.note-table{border-top:2px solid var(--color-ink)}
.note-table td{padding:var(--space-lg) var(--space-md)}
.note-table .note-title{white-space:normal;line-height:1.7}
.note-table tr:hover{background:var(--color-paper-2)}
.source-list{gap:0 var(--space-xl);border-top:2px solid var(--color-ink)}
.source-item{padding:var(--space-lg) 0;border-top:0;border-bottom:1px solid var(--color-rule)}
.source-item h3{font-size:17px;line-height:1.6;margin:var(--space-sm) 0}
.source-item p{line-height:1.8;min-height:76px}
.source-origin{font-size:12px;line-height:1.8;margin-top:var(--space-sm)}
.source-item footer{margin-top:var(--space-md);gap:var(--space-xs)}
dialog{border-radius:0;max-height:88svh;position:fixed;inset:0;margin:auto}
.dialog-head,.dialog-body,.dialog-foot{padding:var(--space-lg) var(--space-panel)}
.dialog-head h2{font-size:22px}
.dialog-body h3{font-size:17px;margin:0 0 var(--space-lg)}
.settings-avatar img{border-radius:0}
.service-status{margin:var(--space-lg) 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-lg)}
.service-status dt{font-size:12px;color:var(--color-muted)}
.service-status dd{margin:var(--space-xs) 0 0;font-size:14px}
.toast{border-radius:0}
.signed-out .site-header nav,.signed-out .header-actions,.signed-out #storage-banner{display:none}
.signed-out .site-header{background:var(--color-paper);border:0}
.login-shell{min-height:calc(100svh - 80px);display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:var(--space-2xl);padding-top:var(--space-lg);align-items:center}
.login-intro{padding:var(--space-lg) 0;display:grid;grid-template-columns:minmax(0,1fr) 230px;column-gap:var(--space-lg);align-items:start}
.login-intro h1{font-size:38px;line-height:1.5;max-width:none;grid-column:1/-1;margin-bottom:var(--space-md)}
.login-intro>p{grid-column:1/-1;max-width:36ch;font-size:15px;color:var(--color-muted)}
.login-sample{grid-column:1/-1;margin-top:var(--space-xl);width:232px;transform:rotate(-3deg);box-shadow:var(--shadow-preview)}
.login-sample canvas{display:block;width:100%;height:auto}
.login-intro>.help{grid-column:1/-1;margin-top:var(--space-lg)}
.login-panel{border-left:1px solid var(--color-rule);padding:var(--space-xl) 0 var(--space-xl) var(--space-2xl)}
.login-panel form{max-width:380px}
.login-panel h2{font-size:26px;margin-bottom:var(--space-sm);line-height:1.5;max-width:none}
.login-panel form>p{font-size:14px;color:var(--color-muted)}
.login-panel .field{margin-top:var(--space-xl);margin-bottom:var(--space-xs)}
.login-panel input{min-height:48px}
.login-panel .inline-error{color:var(--color-error);min-height:24px;margin-bottom:var(--space-md)}
.login-panel .primary{width:100%;justify-content:space-between;min-height:48px}
.login-footnote{margin-top:var(--space-lg)}
.image-workbench{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:var(--space-2xl)}
.image-composer,.image-output{border-top:2px solid var(--color-ink);padding-top:var(--space-lg);min-width:0}
#image-prompt{min-height:190px;line-height:1.8}
.image-optimizer{display:flex;gap:var(--space-md);align-items:center;margin:var(--space-lg) 0}
.image-optimizer .help{margin:0}
.image-generate-row{display:flex;gap:var(--space-md);align-items:center;border-top:1px solid var(--color-rule);padding-top:var(--space-lg);margin-top:var(--space-lg)}
.image-generate-row .primary{min-width:155px}
.image-generate-row .help{margin:0;font-size:12px}
.image-state{min-height:32px;margin-top:var(--space-md);font-size:14px;display:flex;align-items:center;gap:var(--space-sm);flex-wrap:wrap}
.image-state.error{color:var(--color-error)}
.image-footnote{margin-top:var(--space-md);line-height:1.8}
.image-result{min-height:490px;display:grid;place-items:center;background:var(--color-paper-2);position:relative;padding:var(--space-lg)}
.image-result>img{max-height:560px;width:auto;object-fit:contain}
.image-size-label{font-size:12px;position:absolute;right:12px;bottom:12px;background:var(--color-paper);color:var(--color-muted);padding:var(--space-2xs) var(--space-xs)}
.image-empty{text-align:center;max-width:27ch;padding:var(--space-lg);color:var(--color-muted)}
.image-empty svg{width:64px;height:64px;fill:none;stroke:currentColor;stroke-width:1;margin:0 auto var(--space-lg)}
.image-empty h3{font-size:17px;font-weight:500;margin-bottom:var(--space-sm)}
.image-empty p{font-size:14px}
.image-download-actions{display:flex;gap:var(--space-md);margin-top:var(--space-md)}
.image-history{border-top:1px solid var(--color-rule);margin-top:var(--space-xl);padding-top:var(--space-lg)}
.image-history h2{font-size:17px}
.image-history-list{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:var(--space-lg);margin-top:var(--space-lg)}
.image-history-item{padding:0;border:1px solid var(--color-transparent);background:var(--color-transparent);text-align:left;color:var(--color-ink)}
.image-history-item.active{border-color:var(--color-ink)}
.image-history-item img{height:150px;width:100%;object-fit:cover}
.image-history-item span{display:block;padding:var(--space-xs);font-size:12px;line-height:1.7}
.prompt-suggestion{padding-block:var(--space-md);border-top:1px solid var(--color-rule);font-size:14px}
.prompt-suggestion p{font-size:13px;color:var(--color-muted)}
.prompt-suggestion textarea{width:100%;min-height:140px;margin:var(--space-sm) 0;background:var(--color-plate);color:var(--color-ink);border:1px solid var(--color-field-edge);padding:var(--space-sm);font-size:14px}
.inspiration-toolbar{display:flex;gap:var(--space-md);align-items:center;flex-wrap:wrap;margin-bottom:var(--space-lg)}
.inspiration-grid,.topic-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 var(--space-xl);border-top:2px solid var(--color-ink)}
.inspiration-card,.topic-card{padding:var(--space-lg) 0;border-bottom:1px solid var(--color-rule);min-width:0}
.inspiration-card h2,.inspiration-card h3,.topic-card h2,.topic-card h3{font-size:17px;line-height:1.6;margin-bottom:var(--space-sm);max-width:none}
.inspiration-card p,.topic-card p{font-size:14px;line-height:1.8;color:var(--color-muted)}
.inspiration-compose{padding:var(--space-lg) 0;margin-bottom:var(--space-xl);border-top:2px solid var(--color-ink);border-bottom:1px solid var(--color-rule)}
.inspiration-compose h2{font-size:19px;margin-bottom:var(--space-md)}
.topic-outlines{margin-top:var(--space-md);padding:var(--space-md) 0;border-top:1px solid var(--color-rule);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-lg)}
.topic-outlines h4{font-size:14px;margin:0 0 var(--space-xs);font-weight:500}
.topic-outlines ol,.topic-outlines ul{font-size:13px;padding-left:var(--space-lg);color:var(--color-muted);line-height:1.8}
@media(min-width:1600px){.app-shell{padding-top:var(--space-xl)}.preview-stage{min-height:470px}.preview-stage canvas{width:310px}}
@media(max-width:1180px){:root{--gutter:32px}.header-inner{gap:var(--space-lg)}.site-header nav{gap:var(--space-md)}.site-header nav a{font-size:13px}.header-actions .button{font-size:12px}.create-layout,.image-workbench{gap:var(--space-xl)}.login-panel{padding-left:var(--space-xl)}.brand{font-size:20px}}
@media(max-width:960px){.header-inner{height:auto;min-height:72px;flex-wrap:wrap;gap:0 var(--space-lg);padding-top:var(--space-md)}.header-actions{margin-left:auto}.site-header nav{width:100%;order:3;height:52px;justify-content:flex-start;gap:var(--space-lg);overflow-x:auto}.site-header nav a{font-size:14px;padding:var(--space-sm) 0}.header-inner .brand{min-height:40px}.app-shell{padding-top:var(--space-lg)}.editor-grid{grid-template-columns:64px minmax(0,1fr)}.editor-panel{grid-column:1/-1;padding:var(--space-md) 0 0}.login-shell{gap:var(--space-xl)}.login-intro h1{font-size:30px}.toolbar{flex-wrap:wrap}.filter-tabs{margin-left:0}.image-history-list{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:700px){:root{--gutter:20px}.brand-mark{width:32px;height:32px;font-size:20px}.brand{font-size:20px}.page-head{margin-bottom:var(--space-lg);align-items:flex-start}.page-head h1{font-size:25px}.page-head p{font-size:14px}.page-head>.caption-line{display:none}.create-layout,.image-workbench{grid-template-columns:minmax(0,1fr);gap:var(--space-xl)}.field .topic-input{font-size:20px;min-height:92px}.field input,.field select,.field textarea,input.search{font-size:16px}.compose-sheet{padding-top:var(--space-md)}.compose-heading{margin-bottom:var(--space-md)}.compose-heading h2{font-size:16px}.compose-heading .caption-line{font-size:11px}.field{margin-bottom:var(--space-md)}.three-col{grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-xs)}.three-col .field>span{font-size:12px}.three-col select{padding:var(--space-xs) var(--space-2xs);font-size:14px}.compose-actions{flex-wrap:nowrap}.compose-actions .primary{flex:1;flex-basis:auto;min-width:0;font-size:14px}.compose-actions .quiet{font-size:13px;padding-inline:var(--space-xs)}.topic-list{grid-template-columns:minmax(0,1fr)}.preview-stage{min-height:0}.preview-stage canvas{width:285px}.preview-footer{flex-wrap:wrap}.recent-list{grid-template-columns:minmax(0,1fr);gap:var(--space-md)}.editor-top>.row{flex-wrap:wrap}.editor-canvas{min-height:360px;padding:var(--space-sm)}.editor-panel{padding-inline:0}.source-list,.inspiration-grid,.topic-board{grid-template-columns:minmax(0,1fr)}.source-item p{min-height:0}.source-origin{overflow-wrap:anywhere;display:block}.note-table td{padding:var(--space-md) var(--space-xs)}.filter-tabs{width:100%;gap:0}.filter-tabs button{padding:var(--space-xs);font-size:13px}.toolbar .search{max-width:none}.login-shell{display:block;min-height:calc(100svh - 76px);padding-top:var(--space-xl)}.login-intro{display:none}.login-panel{border:0;padding:var(--space-xl) 0}.login-panel form{max-width:420px;margin-inline:auto}.login-panel h2{font-size:26px}.image-result{min-height:380px}.image-result>img{max-height:500px}.image-history>.row{align-items:flex-start;flex-direction:column;gap:var(--space-xs)}.image-history-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-sm)}.image-history-item img{height:120px}.image-optimizer{align-items:flex-start}.image-optimizer .button{flex-shrink:0}.image-generate-row{flex-wrap:wrap}.image-generate-row .primary{flex:1}.topic-outlines{grid-template-columns:minmax(0,1fr)}.dialog-head,.dialog-body,.dialog-foot{padding:var(--space-lg)}.service-status{gap:var(--space-sm)}.page-head .row{flex-wrap:wrap}}
@media(max-width:360px){:root{--gutter:16px}.site-header nav{gap:var(--space-lg)}.page-head h1{font-size:23px}.brand{font-size:18px}.header-actions .button{font-size:12px}.compose-heading .caption-line{display:none}.source-item footer{flex-wrap:wrap}.preview-controls{gap:var(--space-2xs)}.image-history-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.inspiration-toolbar select{min-height:44px;border:1px solid var(--color-field-edge);border-radius:0;background:var(--color-plate);color:var(--color-ink);font-size:14px;padding:var(--space-xs) var(--space-sm);max-width:100%}
.inspiration-compose>.two-col{margin-top:var(--space-lg);grid-template-columns:minmax(0,1.7fr) minmax(0,1fr)}
.inspiration-card .check-row{border:0;padding:0;margin:0}
.inspiration-tags{display:flex;gap:var(--space-xs);flex-wrap:wrap;margin:var(--space-sm) 0}
.inspiration-card>.row:last-child{margin-top:var(--space-md)}
.inspiration-result{padding-top:var(--space-lg);font-size:14px}
.topic-stats{display:flex;gap:var(--space-lg);border-top:1px solid var(--color-rule);padding:var(--space-md) 0;margin-bottom:var(--space-md);font-size:13px;color:var(--color-muted);flex-wrap:wrap}
.topic-card>h2{margin-top:var(--space-md);margin-bottom:var(--space-sm)}
.topic-meta{display:flex;gap:var(--space-sm);flex-wrap:wrap;font-size:12px;color:var(--color-muted);margin:var(--space-sm) 0}
.topic-outlines{display:block;margin:var(--space-md) 0;padding:var(--space-sm) 0}
.topic-outlines>summary{font-size:14px;cursor:pointer;min-height:36px;line-height:36px}
.topic-outline-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-lg);margin-top:var(--space-md)}
.topic-outline-columns h3{font-size:14px;font-weight:500}
.topic-outline-columns p{white-space:pre-wrap;font-size:13px}
.topic-source-list{display:flex;flex-direction:column;gap:var(--space-2xs);margin-top:var(--space-sm)}
.topic-dialog{width:min(780px,calc(100% - 28px))}
.topic-board>.empty-state{grid-column:1/-1}
@media(max-width:960px){.site-header nav{flex:0 0 100%;width:100%}}
@media(max-width:700px){.inspiration-toolbar select{font-size:16px;flex:1}.inspiration-compose>.two-col,.topic-outline-columns{grid-template-columns:minmax(0,1fr)}.topic-stats{gap:var(--space-sm)}.topic-meta{gap:var(--space-xs)}}

/* Hallmark · dismissed 25 · login introduction is one sentence, not running prose; 36ch keeps the teacher-facing line together beside the sign-in form. */
.field .topic-input{border:1px solid var(--color-field-edge);background:var(--color-plate);padding:var(--space-md);min-height:110px}
.source-item p{display:block;-webkit-line-clamp:unset;overflow:visible;min-height:0}
@media(max-width:960px){.topic-list{grid-template-columns:minmax(0,1fr)}}
.topic-chip{white-space:nowrap}

.empty-state h2,.empty-state p{max-width:none}
/* Hallmark · answered F7 · Shared rectangular fields belong to the same writing application; form borders show editable state while previews use a separate neutral well. */