:root{--header-height:52px;--nav-width:220px;--color-bg:#fff;--color-surface:#f7f7f5;--color-border:#e0e0db;--color-text:#1a1a18;--color-text-muted:#787774;--color-accent:#2563eb;--color-accent-hover:#1d4ed8;--color-disabled:#b0b0a8;--color-error-bg:#fef2f2;--color-error-text:#b91c1c;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;--font-mono:"JetBrains Mono", "Fira Mono", ui-monospace, monospace;--radius:6px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);flex-direction:column;height:100vh;font-size:15px;line-height:1.6;display:flex;overflow:hidden}#app-header{height:var(--header-height);border-bottom:1px solid var(--color-border);background:var(--color-bg);flex-shrink:0;justify-content:space-between;align-items:center;padding:0 16px;display:flex}#pr-title{color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:600;overflow:hidden}#header-actions{gap:8px;display:flex}#app-body{grid-template-columns:var(--nav-col,var(--nav-width)) 1fr;height:calc(100vh - var(--header-height));transition:grid-template-columns .22s;display:grid;overflow:hidden}#app-body.nav-collapsed{--nav-col:0px}#file-nav{border-right:1px solid var(--color-border);background:var(--color-surface);flex-direction:column;padding:8px 0;display:flex;overflow:hidden auto}.file-nav-item{text-align:left;cursor:pointer;width:100%;font-size:13px;font-family:var(--font-mono);color:var(--color-text);white-space:nowrap;text-overflow:ellipsis;background:0 0;border:none;border-radius:0;padding:6px 12px;display:block;overflow:hidden}.file-nav-item:hover:not(:disabled){background:var(--color-border)}.file-nav-item--active{color:var(--color-accent);background:#dbeafe;font-weight:600}.file-nav-item--disabled{color:var(--color-disabled);cursor:default}#document-viewport{background:var(--color-bg);padding:32px 40px;overflow-y:auto}#pr-loader{flex-direction:column;gap:16px;max-width:480px;margin:0 auto;padding-top:48px;display:flex}#pr-form{flex-direction:column;gap:10px;display:flex}#pr-form label{font-size:14px;font-weight:500}.pr-input-row{gap:8px;display:flex}#pr-url-input{border:1px solid var(--color-border);border-radius:var(--radius);font-size:14px;font-family:var(--font-mono);outline:none;flex:1;padding:8px 10px}#pr-url-input:focus{border-color:var(--color-accent);box-shadow:0 0 0 2px #2563eb26}.doc-content{max-width:70ch;margin:0 auto}.doc-content h1,.doc-content h2,.doc-content h3,.doc-content h4,.doc-content h5,.doc-content h6{margin-top:1.5em;margin-bottom:.5em;font-weight:600;line-height:1.3}.doc-content h1{font-size:1.75rem}.doc-content h2{border-bottom:1px solid var(--color-border);padding-bottom:.25em;font-size:1.35rem}.doc-content h3{font-size:1.1rem}.doc-content p{margin-bottom:1em}.doc-content ul,.doc-content ol{margin-bottom:1em;padding-left:1.5em}.doc-content li{margin-bottom:.25em}.doc-content blockquote{border-left:3px solid var(--color-border);color:var(--color-text-muted);margin-bottom:1em;padding-left:1em}.doc-content code{font-family:var(--font-mono);background:var(--color-surface);border-radius:3px;padding:.15em .4em;font-size:.875em}.doc-content pre{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);margin-bottom:1em;padding:16px;overflow-x:auto}.doc-content pre code{background:0 0;padding:0}.doc-content table{border-collapse:collapse;width:100%;margin-bottom:1em}.doc-content th,.doc-content td{border:1px solid var(--color-border);text-align:left;padding:6px 12px}.doc-content th{background:var(--color-surface);font-weight:600}.doc-content hr{border:none;border-top:1px solid var(--color-border);margin:1.5em 0}.doc-content a{color:var(--color-accent);text-decoration:underline}.btn-primary,button.btn-primary{background:var(--color-accent);color:#fff;border-radius:var(--radius);cursor:pointer;white-space:nowrap;border:none;padding:7px 14px;font-size:14px;font-weight:500}.btn-primary:hover:not(:disabled){background:var(--color-accent-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}#auth-btn{background:var(--color-accent);color:#fff;border-radius:var(--radius);cursor:pointer;border:none;padding:7px 14px;font-size:14px;font-weight:500}#signout-btn{border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text-muted);cursor:pointer;background:0 0;padding:6px 12px;font-size:13px}#signout-btn:hover{border-color:var(--color-text-muted);color:var(--color-text)}#pat-form{flex-direction:column;gap:10px;display:flex}#pat-input{border:1px solid var(--color-border);border-radius:var(--radius);font-size:14px;font-family:var(--font-mono);outline:none;flex:1;padding:8px 10px}#pat-input:focus{border-color:var(--color-accent);box-shadow:0 0 0 2px #2563eb26}.pat-hint{color:var(--color-text-muted);font-size:13px;line-height:1.5}.loading{color:var(--color-text-muted);text-align:center;padding:32px 0;font-size:14px}.error{color:var(--color-error-text);background:var(--color-error-bg);border-radius:var(--radius);padding:10px 14px;font-size:14px}.comments-error{margin-bottom:16px}[hidden]{display:none!important}.comment-popup{top:var(--popup-top,50%);left:var(--popup-left,50%);z-index:40;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);width:min(360px,100vw - 24px);max-height:min(480px,100vh - 24px);padding:30px 12px 12px;animation:.12s comment-popup-in;position:fixed;overflow-y:auto;box-shadow:0 8px 24px #0000002e}@keyframes comment-popup-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.comment-popup-close{width:24px;height:24px;color:var(--color-text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;font-size:18px;line-height:1;position:absolute;top:6px;right:6px}.comment-popup-close:hover{background:var(--color-surface)}.comment-popup-section-title{color:var(--color-text-muted);margin:12px 0 6px;font-size:.8rem;font-weight:600}.comment-popup-section-title:first-child{margin-top:4px}.comments-count-btn{border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);cursor:pointer;background:0 0;padding:6px 12px;font-size:13px}.comments-count-btn:hover{background:var(--color-surface)}.thread-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;padding:10px 12px;font-size:.875rem}.thread-card+.thread-card{margin-top:8px}.comment+.comment{border-top:1px solid var(--color-border);margin-top:10px;padding-top:10px}.comment-avatar{vertical-align:middle;border-radius:50%;width:20px;height:20px;margin-right:6px}.comment-author{font-weight:600}.comment-time{color:var(--color-muted);margin-left:6px}.comment-body{margin-top:6px;line-height:1.5}[data-line].has-comment{cursor:pointer;background:color-mix(in srgb, var(--color-accent) 8%, transparent);box-shadow:inset 3px 0 0 0 color-mix(in srgb, var(--color-accent) 45%, transparent);border-radius:3px;margin-left:-6px;padding-left:6px}[data-line].has-comment:hover{background:color-mix(in srgb, var(--color-accent) 14%, transparent)}[data-line].anchor--active{background:color-mix(in srgb, var(--color-accent) 20%, transparent);box-shadow:inset 3px 0 0 0 var(--color-accent)}.icon-toggle-btn{border:1px solid var(--color-border);border-radius:var(--radius);cursor:pointer;min-width:44px;height:36px;color:var(--color-text);background:0 0;flex-shrink:0;justify-content:center;align-items:center;padding:0 10px;font-size:18px;line-height:1;display:flex}.icon-toggle-btn:hover{background:var(--color-surface)}#nav-backdrop{z-index:10;background:#00000059;display:none;position:fixed;inset:0}#nav-backdrop.visible{display:block}@media (width<=640px){body{height:auto;min-height:100dvh;padding-top:var(--header-height);overflow:auto}#app-header{z-index:30;gap:10px;padding:0 12px;position:fixed;top:0;left:0;right:0}#pr-title{flex:1;min-width:0}#header-actions{flex-shrink:0}#auth-btn,#signout-btn{min-height:36px;padding:6px 10px;font-size:13px}#app-body{grid-template-columns:1fr;height:auto;transition:none;position:relative;overflow:visible}#file-nav{z-index:20;width:min(280px,80vw);padding-top:var(--header-height);border-right:1px solid var(--color-border);transition:transform .22s;position:fixed;top:0;bottom:0;left:0;overflow-y:auto;transform:translate(-100%)}#file-nav.nav-open{transform:translate(0)}.file-nav-item{white-space:normal;word-break:break-all;min-height:44px;padding:10px 14px;font-size:14px}#document-viewport{min-height:0;padding:20px 16px;overflow-y:visible}.comment-popup{border-radius:12px 12px 0 0;width:100%;max-width:100%;max-height:70vh;inset:auto 0 0}#pr-loader{max-width:100%;padding-top:24px}.pr-input-row{flex-direction:column}.doc-content{max-width:100%}.doc-content h1{font-size:1.4rem}.doc-content h2{font-size:1.15rem}.doc-content h3{font-size:1rem}.doc-content pre{padding:12px;font-size:.8em}.doc-content table{display:block;overflow-x:auto}}