:root{font-family:system-ui,-apple-system,sans-serif;line-height:1.5;--bg: #f6f7f9;--surface: #ffffff;--text: #1a1a1a;--muted: #6b7280;--accent: #2563eb;--accent-hover: #1d4ed8;--border: #e5e7eb;--error: #b91c1c;--ok: #047857;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .08);--content-width: 640px;--gap: 16px;color:var(--text);background:var(--bg)}:root[data-theme=dark]{--bg: #0f1115;--surface: #1a1d23;--text: #e6e8eb;--muted: #9aa0aa;--accent: #3b82f6;--accent-hover: #60a5fa;--border: #2a2e37;--error: #f87171;--ok: #34d399;--shadow: 0 1px 3px rgba(0, 0, 0, .4)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;touch-action:manipulation}.app-offline{margin:0;padding:8px 20px;text-align:center;font-size:.85rem;color:var(--surface);background:var(--muted)}.app-header{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow)}.app-header-inner{display:flex;align-items:center;gap:20px;max-width:960px;margin:0 auto;padding:10px 20px}.app-header h1,.app-logo{margin:0;font-size:1.35rem;font-weight:700;letter-spacing:-.01em}.app-logo{padding:0;font:inherit;font-size:1.35rem;font-weight:700;color:var(--text);background:transparent;border:none;cursor:pointer}.app-logo:hover{opacity:.8}.app-nav{display:flex;gap:4px;padding:4px;background:var(--bg);border:1px solid var(--border);border-radius:999px}.app-nav button{padding:6px 16px;font:inherit;font-size:.9rem;color:var(--muted);background:transparent;border:none;border-radius:999px;cursor:pointer;transition:color .12s ease,background .12s ease}.app-nav button:hover{color:var(--text)}.app-nav button[aria-current=page]{color:#fff;background:var(--accent)}.app-account{display:flex;align-items:center;gap:12px;margin-left:auto;padding-left:16px;border-left:1px solid var(--border)}.app-signout{padding:6px 14px;font:inherit;font-size:.85rem;color:var(--muted);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer}.app-signout:hover{color:var(--text);border-color:var(--accent)}.premium-button-wrap{position:relative}.premium-button{padding:6px 12px;font:inherit;font-size:.8rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#f59e0b,#d97706);border:none;border-radius:var(--radius);cursor:pointer;white-space:nowrap}.premium-button:hover{filter:brightness(1.1)}.premium-button:disabled{opacity:.7;cursor:wait}.premium-popup{position:absolute;top:calc(100% + 8px);right:0;width:max-content;max-width:220px;padding:10px 14px;font-size:.85rem;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);z-index:20}.header-menu{position:relative}.header-menu-button{font-size:1.25rem;line-height:1;padding:6px 10px;color:var(--text);background:transparent;border:1px solid var(--border);border-radius:var(--radius);cursor:pointer}.header-menu-dropdown{position:absolute;right:0;top:calc(100% + 8px);z-index:20;min-width:200px;display:flex;flex-direction:column;padding:6px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.header-menu-email{padding:8px 10px;font-size:.85rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.header-menu-dropdown button{text-align:left;padding:8px 10px;font:inherit;color:var(--text);background:transparent;border:none;border-radius:6px;cursor:pointer}.header-menu-dropdown button:hover{background:var(--bg)}.settings-row{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;max-width:600px;padding:16px 0;border-bottom:1px solid var(--border)}.settings-row>span{flex:1;min-width:0;padding-top:2px}.settings-soon{display:block;margin-top:2px;font-size:.75rem;color:var(--muted)}.settings-premium{margin-top:28px;padding-top:24px;border-top:1px solid var(--border);max-width:480px}.settings-premium h3{margin:0 0 8px;font-size:1.05rem}.settings-premium p{margin:0 0 16px;color:var(--muted);font-size:.9rem;line-height:1.45}.settings-premium-button{margin-bottom:12px}.settings-thanks{color:var(--ok);font-weight:500}.settings-error{color:var(--error);font-size:.85rem}@media (max-width: 640px){.app-header-inner{flex-wrap:wrap;gap:12px;padding:12px 16px}.app-header h1{flex:1 1 auto}.app-nav{order:3;width:100%}.app-nav button{flex:1;text-align:center}.app-account{order:2;margin-left:auto;padding-left:0;border-left:none}.header-menu{order:2;margin-left:auto}.app-user{max-width:45vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}.app-main{max-width:var(--content-width);margin:0 auto;padding:24px 16px}.feed{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--gap)}.feed-item{margin:0}.feed-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px}.feed-card-title{margin:0 0 6px;font-size:1.15rem}.feed-card-title a{color:var(--accent);text-decoration:none}.feed-card-title a:hover{text-decoration:underline}.feed-card-description{margin:0 0 10px;color:var(--muted)}.feed-card-tags{list-style:none;margin:0 0 12px;padding:0;display:flex;flex-wrap:wrap;gap:6px}.feed-card-tag{font-size:.78rem;color:var(--muted);background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:2px 10px}.feed-card-tag:before{content:"#"}.feed-card-summary{margin-top:12px;padding-top:12px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:8px;align-items:flex-start}.feed-card-summary-text{margin:0;line-height:1.6}.feed-card-summary-text>*:first-child{margin-top:0}.feed-card-summary-text>*:last-child{margin-bottom:0}.feed-card-summary-text p{margin:0 0 .75em}.feed-card-summary-text p:last-child{margin-bottom:0}.feed-card-summary-text ul,.feed-card-summary-text ol{margin:0 0 .75em;padding-left:1.25em}.feed-card-summary-text li{margin-bottom:.25em}.feed-card-summary-text code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;background:var(--bg);padding:.1em .3em;border-radius:4px}.feed-card-summary-text pre{background:var(--bg);padding:.75em 1em;border-radius:var(--radius);overflow-x:auto}.feed-card-summary-text pre code{padding:0;background:transparent}.feed-card-summary-text blockquote{margin:0 0 .75em;padding-left:1em;border-left:3px solid var(--border);color:var(--muted)}.feed-card-summary-text a{color:var(--accent)}.feed-card-summary-text a:hover{text-decoration:none}.feed-card-actions{display:flex;gap:8px}.feed-card-error{color:var(--error)}.feed-card-fallback{display:flex;gap:14px;align-items:flex-start;margin-top:4px}.feed-card-fallback-image{flex-shrink:0;width:120px;border-radius:var(--radius);overflow:hidden;background:var(--bg)}.feed-card-fallback-image img{display:block;width:100%;height:auto}.feed-card-fallback-body{flex:1;min-width:0}.feed-card-fallback-body p{margin:0 0 8px;color:var(--text);font-size:.9rem;line-height:1.4}.feed-card-fallback-note{display:block;font-size:.8rem;color:var(--muted)}.icon{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:16px;height:16px}.icon svg{width:100%;height:100%}.feed-card-extend{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;margin-top:4px;font:inherit;font-size:.85rem;font-weight:500;color:var(--accent);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:color .12s ease,border-color .12s ease,background .12s ease}.feed-card-extend:hover{color:#fff;border-color:var(--accent);background:var(--accent)}.feed-card-extend svg{width:16px;height:16px}.feed-card-summary button:not(.feed-card-extend),.settings button{padding:8px 16px;font:inherit;color:#fff;background:var(--accent);border:none;border-radius:var(--radius);cursor:pointer}.feed-card-summary button:not(.feed-card-extend):hover,.settings button:hover{background:var(--accent-hover)}.feed-card-summary button:not(.feed-card-extend):disabled,.settings button:disabled{opacity:.6;cursor:not-allowed}.settings{max-width:var(--content-width)}.settings h2{margin-top:0}.settings fieldset{margin:0 0 16px;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius)}.settings legend{padding:0 6px;color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.03em}.settings label{display:block;margin-bottom:12px;font-size:.9rem}.settings input,.settings select{display:block;width:100%;margin-top:4px;padding:8px 10px;font:inherit;border:1px solid var(--border);border-radius:var(--radius)}.settings [role=status]{margin-left:10px;color:var(--ok)}.app-loading{max-width:var(--content-width);margin:0 auto;padding:48px 16px;color:var(--muted)}.app-user{align-self:center;color:var(--muted);font-size:.85rem}.login{max-width:360px;margin:64px auto;padding:0 16px;text-align:center}.login-form{display:flex;flex-direction:column;gap:12px;text-align:left;margin-top:16px}.login-form label{font-size:.9rem}.login-form input{display:block;width:100%;margin-top:4px;padding:8px 10px;font:inherit;border:1px solid var(--border);border-radius:var(--radius)}.login-form button{padding:8px 16px;font:inherit;color:#fff;background:var(--accent);border:none;border-radius:var(--radius);cursor:pointer}.login-form button:disabled{opacity:.6;cursor:not-allowed}.login-error{color:var(--error)}.add-link{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;margin-bottom:var(--gap);padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.add-link label{display:flex;flex-direction:column;font-size:.85rem;gap:4px;flex:1 1 220px}.add-link input{padding:8px 10px;font:inherit;border:1px solid var(--border);border-radius:var(--radius)}.add-link button{padding:8px 16px;font:inherit;color:#fff;background:var(--accent);border:none;border-radius:var(--radius);cursor:pointer}.add-link-error,.feed-error{color:var(--error);flex-basis:100%}.feed-status{color:var(--muted);text-align:center;font-size:.85rem}.explore-new-items{display:block;width:100%;margin:0 0 12px;padding:8px 12px;font:inherit;font-size:.85rem;color:var(--accent);text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer}.explore-new-items:hover{border-color:var(--accent)}.explore-sentinel{height:1px}.feed-item-actions{display:flex;gap:8px;margin-top:8px;padding-left:4px}.feed-item-actions button{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;font:inherit;font-size:.82rem;color:var(--muted);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:color .12s ease,border-color .12s ease,background .12s ease}.feed-item-actions button:hover{color:var(--text);border-color:var(--accent)}.feed-action-save{color:var(--accent)}.feed-action-save:hover{color:var(--accent-hover);border-color:var(--accent)}.feed-quota{margin:0 0 var(--gap);color:var(--muted);font-size:.85rem}.public-layout{max-width:var(--content-width);margin:0 auto;padding:24px 16px}.public-page h2{margin-top:0}.public-page ul{margin:0 0 20px;padding-left:1.25em}.public-page li{margin-bottom:8px}.public-cta{display:inline-block;padding:10px 20px;font:inherit;font-weight:500;color:#fff;text-decoration:none;background:var(--accent);border:none;border-radius:var(--radius);cursor:pointer}.public-cta-secondary{color:var(--text);background:var(--surface);border:1px solid var(--border)}.public-cta-secondary:hover{border-color:var(--accent)}.landing-page{padding-bottom:48px}.landing-hero{margin-bottom:40px}.landing-hero h2{margin-bottom:16px;font-size:clamp(2rem,6vw,3rem);font-weight:700;letter-spacing:-.03em;line-height:1.1}.landing-subhead{max-width:560px;margin:0 0 24px;color:var(--muted);font-size:1.15rem;line-height:1.5}.landing-social-proof{margin-bottom:48px;padding:14px 18px;color:var(--muted);font-size:.9rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.landing-social-proof p{margin:0}.landing-section{margin-bottom:48px}.landing-section h3{margin:0 0 14px;font-size:1.35rem;font-weight:600;letter-spacing:-.01em;line-height:1.25}.landing-section p{margin:0 0 14px;color:var(--muted)}.landing-pull{padding:14px 18px;color:var(--text)!important;font-weight:500;background:var(--surface);border-left:3px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0}.steps-list{display:grid;gap:18px;margin:0;padding:0;list-style:none;counter-reset:step}.steps-list li{position:relative;padding-left:48px;margin-bottom:0;color:var(--muted)}.steps-list li:before{position:absolute;left:0;top:-2px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:600;color:var(--accent);background:var(--surface);border:1px solid var(--border);border-radius:999px;counter-increment:step;content:counter(step)}.steps-list strong{display:block;margin-bottom:4px;color:var(--text)}.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:0;padding:0;list-style:none}.feature-grid li{display:flex;flex-direction:column;gap:4px;padding:16px;margin-bottom:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.feature-grid strong{color:var(--text);font-weight:600}.feature-grid span{color:var(--muted);font-size:.95rem;line-height:1.4}.final-cta{padding:32px;text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.final-cta h3{margin-bottom:8px;font-size:1.5rem}.final-cta p{margin-bottom:20px}.faq-page h2{margin-bottom:24px}.faq-list{margin:0 0 24px}.faq-item{margin-bottom:20px}.faq-item dt{margin-bottom:6px;font-weight:600;color:var(--text)}.faq-item dd{margin:0;color:var(--muted);line-height:1.5}.faq-contact{color:var(--muted)}.faq-contact a{color:var(--accent);text-decoration:none}.faq-contact a:hover{text-decoration:underline}.share-shortcut{margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}.share-shortcut h3{margin:0 0 8px;font-size:1.05rem}.share-shortcut p{margin:0 0 14px;color:var(--muted);font-size:.9rem;line-height:1.45}.share-shortcut-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:12px}.share-shortcut-hint{font-size:.8rem;color:var(--muted)}.share-shortcut-code{display:block;margin:8px 0;padding:8px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.8rem;color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);word-break:break-all}.share-shortcut-copy{padding:6px 12px;font:inherit;font-size:.8rem;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer}.share-shortcut-copy:hover{border-color:var(--accent)}.share-shortcut ol{margin:0 0 16px;padding-left:1.25em;color:var(--muted)}.share-shortcut li{margin-bottom:10px;line-height:1.45}.share-shortcut-substeps{margin:8px 0 0;padding-left:1.25em;list-style-type:disc}.share-shortcut-substeps li{margin-bottom:6px}.share-shortcut h4{margin:16px 0 6px;font-size:.95rem}.app-footer{display:flex;justify-content:center;gap:16px;padding:16px;font-size:.85rem;color:var(--muted);border-top:1px solid var(--border)}.app-footer a{color:var(--muted);text-decoration:none}.app-footer a:hover{text-decoration:underline}.feed-heading{margin:0 0 16px;font-size:1.2rem}.feed-empty{margin:8px 0;padding:28px 20px;text-align:center;color:var(--muted);background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius)}.toggle{display:inline-flex;align-items:center;cursor:pointer}.toggle input{position:absolute;opacity:0;width:0;height:0}.toggle-switch{position:relative;width:48px;height:28px;flex-shrink:0;background:#d1d5db;border:1px solid #9ca3af;border-radius:999px;transition:background .2s ease,border-color .2s ease}[data-theme=dark] .toggle-switch{background:#4b5563;border-color:#6b7280}.toggle-switch:after{content:"";position:absolute;top:2px;left:2px;width:22px;height:22px;background:#fff;border-radius:50%;box-shadow:0 1px 3px #0000004d;transition:transform .2s ease}.toggle input:checked+.toggle-switch{background:var(--accent);border-color:var(--accent)}[data-theme=dark] .toggle input:checked+.toggle-switch{background:var(--accent);border-color:var(--accent)}.toggle input:checked+.toggle-switch:after{transform:translate(20px)}.toggle input:focus-visible+.toggle-switch{outline:2px solid var(--accent);outline-offset:2px}html,body{touch-action:pan-y}button,input,select,textarea{touch-action:manipulation}.feed-card-summary-text{overflow-wrap:break-word;word-break:break-word}.feed-card-summary-text img,.feed-card-summary-text video,.feed-card-summary-text iframe{max-width:100%;height:auto;display:block}.feed-card-summary-text pre{overflow-x:auto;max-width:100%}.feed-card-summary-text table{max-width:100%;display:block;overflow-x:auto}.feed-card{min-width:0;max-width:100%}.pwa-prompt{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;font-size:.85rem;color:var(--text);background:var(--surface);border-bottom:1px solid var(--border)}.pwa-prompt button{flex-shrink:0;padding:6px 12px;font:inherit;font-size:.8rem;color:var(--accent);background:transparent;border:1px solid var(--border);border-radius:var(--radius);cursor:pointer}.skeleton-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.skeleton{background:linear-gradient(90deg,var(--border) 25%,var(--surface) 37%,var(--border) 63%);background-size:400% 100%;animation:shimmer 1.4s ease infinite;border-radius:6px}.skeleton-title{height:1.1rem;width:60%;margin-bottom:14px}.skeleton-line{height:.8rem;margin-bottom:8px}.skeleton-line.short{width:40%}@keyframes shimmer{0%{background-position:100% 0}to{background-position:0 0}}