.page--platform,.page--notfound{--tint-wash: var(--brand-soft);--tint-ink: var(--brand)}@supports (background: color-mix(in srgb,red 10%,transparent)){.page--platform{--tint-wash: color-mix(in srgb, var(--platform-tint) 20%, transparent);--tint-ink: color-mix(in srgb, var(--platform-tint) 82%, var(--text))}}.section{margin-top:30px}.section__title{margin:0 0 12px;font-size:1.1rem;letter-spacing:-.015em;font-weight:750}.hero--platform{position:relative;padding:6px 0 4px}.hero--platform:before{content:"";position:absolute;inset:-8px -16px auto;height:100%;background:var(--tint-wash);border-radius:var(--radius-lg);z-index:-1}.hero__eyebrow{display:inline-flex;align-items:center;gap:6px;margin:0 0 2px;font-size:.72rem;font-weight:750;letter-spacing:.06em;text-transform:uppercase;color:var(--tint-ink)}.page--platform .hero__sub--platform{max-width:56ch;margin:3px auto 0;font-size:.8rem;line-height:1.42}.steps>.section__title{margin:0 0 12px;font-size:1.1rem;text-align:left}.page--platform .steps__num{background:var(--tint-wash);color:var(--tint-ink)}.steps h3{margin:0 0 2px;font-size:.95rem}.capability__sub{margin:18px 0 8px;font-size:.9rem;color:var(--text-muted);font-weight:700}.checklist{list-style:none;margin:0;padding:0;display:grid;gap:8px}.checklist li{position:relative;padding-left:26px;font-size:.9rem}.checklist li:before{position:absolute;left:0;top:0;font-weight:800;line-height:1.5}.checklist--yes li:before{content:"✓";color:var(--cta)}.checklist--no li{color:var(--text-muted)}.checklist--no li:before{content:"×";color:var(--danger);font-size:1.1rem;line-height:1.35}.faq__list{margin:0;display:grid;gap:10px}.faq__item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.faq__item dt{font-weight:700;font-size:.95rem;margin-bottom:4px}.faq__item dd{margin:0;font-size:.88rem;color:var(--text-muted)}.why__list{list-style:none;margin:0;padding:0;display:grid;gap:10px}.why__list li{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.why__list h3{margin:0 0 2px;font-size:.95rem}.why__list p{margin:0;font-size:.88rem;color:var(--text-muted)}.platform-links__grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.platform-links__card{display:flex;align-items:center;gap:8px;flex-wrap:wrap;min-height:var(--tap);padding:10px 12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);text-decoration:none;font-size:.9rem}.platform-links__card:hover{border-color:var(--border-strong)}.platform-links__name{font-weight:700}.platform-links__kind{color:var(--text-muted);font-size:.78rem}.platform-links--compact .section__title{font-size:1rem}.notfound{text-align:center;padding:18px 0 10px}.notfound__code{margin:0;font-size:.8rem;font-weight:800;letter-spacing:.12em;color:var(--text-muted)}.notfound__title{margin:2px 0 6px;font-size:1.5rem;letter-spacing:-.02em}.notfound__text{margin:0 auto;max-width:46ch;color:var(--text-muted);font-size:.9rem}.site-footer__nav{margin-bottom:16px}.site-footer__heading{margin:0 0 8px;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);font-weight:750}.site-footer__grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:2px 16px;max-width:420px;margin-inline:auto}.site-footer__grid a{display:block;padding:7px 2px;color:var(--text);text-decoration:none;font-size:.86rem}.site-footer__grid a:hover{color:var(--brand)}.site-footer__support{margin:0 0 10px}.site-footer__kofi{display:inline-block;min-height:32px;padding:6px 12px;border:1px solid var(--border);border-radius:999px;color:var(--text);text-decoration:none;font-size:.82rem;font-weight:650}.site-footer__kofi:hover{border-color:var(--border-strong);color:var(--brand)}.legal{max-width:68ch;margin:0 auto;padding:4px 0 8px;text-align:left}.legal__head{margin-bottom:22px}.legal__title{margin:0 0 6px;font-size:1.6rem;letter-spacing:-.02em}.legal__lede{margin:0;color:var(--text-muted);font-size:.95rem;line-height:1.5}.legal__section{margin-top:26px}.legal__section h2{margin:0 0 8px;font-size:1.05rem;letter-spacing:-.01em;font-weight:750;text-align:left}.legal__section p{margin:0 0 10px;font-size:.92rem;line-height:1.62}.legal__section p:last-child{margin-bottom:0}.legal__list,.legal__steps{margin:0 0 10px;padding-left:20px;display:grid;gap:7px}.legal__list li,.legal__steps li{font-size:.92rem;line-height:1.58}.legal__section a{color:var(--brand);overflow-wrap:anywhere}.legal__foot{margin-top:32px;padding-top:14px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;justify-content:space-between}.legal__updated{margin:0;font-size:.8rem;color:var(--text-muted)}.legal__more{display:flex;flex-wrap:wrap;gap:4px 16px}.legal__more a{color:var(--text-muted);text-decoration:none;font-size:.8rem;padding:4px 0}.legal__more a:hover{color:var(--brand)}.ad-slot--reserved{border-style:dashed}@media(min-width:560px){.section{margin-top:38px}.section__title,.steps>.section__title{font-size:1.25rem}.hero--platform{padding:30px 0 18px}.page--platform .hero__sub--platform{font-size:1rem;margin-top:6px}.checklist{grid-template-columns:repeat(2,1fr)}.faq__list{gap:12px}.why__list,.platform-links__grid{grid-template-columns:repeat(3,1fr)}.site-footer__grid{grid-template-columns:repeat(3,1fr);max-width:none}.notfound__title,.legal__title{font-size:2rem}.legal__section h2{font-size:1.2rem}.legal__section p,.legal__list li,.legal__steps li{font-size:.97rem}}:root{color-scheme:light;--bg: #f4f7fb;--bg-hero: linear-gradient(180deg, #eaf1ff 0%, rgba(244, 247, 251, 0) 100%);--surface: #ffffff;--surface-alt: #f7f9fc;--text: #0f172a;--text-muted: #5a6478;--border: #dfe5ee;--border-strong: #c7d0de;--brand: #1d4ed8;--brand-ink: #17307a;--brand-soft: #e6eeff;--cta: #12924a;--cta-hover: #0d7a3d;--cta-ink: #ffffff;--warn: #b45309;--warn-soft: #fff5e6;--danger: #b42318;--danger-soft: #fdeceb;--radius-sm: 8px;--radius: 14px;--radius-lg: 20px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow: 0 8px 26px rgba(15, 23, 42, .09);--tap: 46px;--maxw: 720px;--font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}[data-theme=dark]{color-scheme:dark;--bg: #0a0f1c;--bg-hero: linear-gradient(180deg, #12203c 0%, rgba(10, 15, 28, 0) 100%);--surface: #131c30;--surface-alt: #18233c;--text: #e9eefb;--text-muted: #97a3bd;--border: #243149;--border-strong: #33456a;--brand: #5b90ff;--brand-ink: #b7cdff;--brand-soft: #16244a;--cta: #1fa85a;--cta-hover: #26bd67;--cta-ink: #04140b;--warn: #f3b45e;--warn-soft: #2c2113;--danger: #ff8a80;--danger-soft: #2d1616;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow: 0 10px 30px rgba(0, 0, 0, .45)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg: #0a0f1c;--bg-hero: linear-gradient(180deg, #12203c 0%, rgba(10, 15, 28, 0) 100%);--surface: #131c30;--surface-alt: #18233c;--text: #e9eefb;--text-muted: #97a3bd;--border: #243149;--border-strong: #33456a;--brand: #5b90ff;--brand-ink: #b7cdff;--brand-soft: #16244a;--cta: #1fa85a;--cta-hover: #26bd67;--cta-ink: #04140b;--warn: #f3b45e;--warn-soft: #2c2113;--danger: #ff8a80;--danger-soft: #2d1616;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow: 0 10px 30px rgba(0, 0, 0, .45)}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.5;-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit;color:inherit}a{color:var(--brand)}:where(button,a,select,input,textarea):focus-visible{outline:3px solid var(--brand);outline-offset:2px}.app-shell{min-height:100dvh;display:flex;flex-direction:column}.app-main{flex:1;background:var(--bg-hero);background-repeat:no-repeat;background-size:100% 420px}.page{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 16px 48px}.site-header{border-bottom:1px solid var(--border);background:var(--surface);position:sticky;top:0;z-index:20}.site-header__inner{max-width:var(--maxw);margin:0 auto;padding:4px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}.wordmark{display:inline-flex;align-items:center;gap:8px;color:var(--text);text-decoration:none;font-weight:750;letter-spacing:-.02em;padding:6px 4px}.wordmark svg{color:var(--brand)}.wordmark__text{font-size:1.15rem}.theme-toggle{width:44px;height:44px;display:grid;place-items:center;border-radius:999px;border:1px solid var(--border);background:var(--surface-alt);color:var(--text-muted);cursor:pointer}.theme-toggle:hover{color:var(--text);border-color:var(--border-strong)}.hero{padding:8px 0 6px;text-align:center}.hero__title{margin:0 0 4px;font-size:1.35rem;line-height:1.2;letter-spacing:-.025em;font-weight:800}.hero__accent{color:var(--brand)}.hero__sub{margin:0;color:var(--text-muted);font-size:.82rem}.hero__sub-more{display:none}.downloader{display:block}.field{display:flex;flex-direction:column;gap:8px}.field__box{position:relative;display:flex;align-items:center;background:var(--surface);border:2px solid var(--border-strong);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:border-color .15s ease}.field__box:focus-within{border-color:var(--brand)}.field__input{flex:1;min-width:0;border:0;background:transparent;padding:0 12px;height:54px;font-size:1rem;border-radius:var(--radius)}.field__input:focus{outline:none}.field__input--bulk{height:auto;min-height:108px;padding:14px 12px;resize:vertical;line-height:1.45;font-size:.95rem}.field__paste{align-self:flex-start;margin:6px;padding:0 14px;min-height:42px;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--surface-alt);color:var(--text);border-radius:10px;font-weight:600;font-size:.9rem;cursor:pointer}.field__paste:hover{border-color:var(--brand);color:var(--brand)}.field__meta{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:20px}.field__bulk{border:1px solid var(--border);background:transparent;color:var(--text-muted);border-radius:999px;padding:5px 12px;font-size:.8rem;font-weight:650;cursor:pointer}.field__bulk--on{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}.platform-badge{display:inline-flex;align-items:center;gap:6px;font-size:.85rem;font-weight:650;color:var(--text)}.platform-badge--muted{color:var(--text-muted);font-weight:550}.btn{border:1px solid transparent;border-radius:var(--radius);font-weight:700;cursor:pointer;min-height:var(--tap);padding:0 18px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:background-color .15s ease,transform .06s ease}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn--hero{width:100%;min-height:54px;font-size:1.05rem;background:var(--cta);color:var(--cta-ink);box-shadow:var(--shadow-sm)}.btn--hero:hover:not(:disabled){background:var(--cta-hover)}.btn--cta{background:var(--cta);color:var(--cta-ink)}.btn--cta:hover:not(:disabled){background:var(--cta-hover)}.btn--ghost{background:var(--surface);border-color:var(--border-strong);color:var(--text)}.btn--ghost:hover:not(:disabled){border-color:var(--brand);color:var(--brand)}.btn--sm{min-height:38px;padding:0 12px;font-size:.85rem;border-radius:10px}.results{margin-top:14px;display:flex;flex-direction:column;gap:12px}.results__bar{display:flex;gap:8px;align-items:center}.results__bar .btn--cta{flex:1}.results__list{display:flex;flex-direction:column;gap:12px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:14px;display:flex;flex-direction:column;gap:12px}.card__head{display:flex;gap:12px;align-items:flex-start}.thumb{width:108px;height:76px;flex:none;object-fit:cover;border-radius:var(--radius-sm);background:var(--surface-alt);border:1px solid var(--border)}.thumb--empty{display:grid;place-items:center;color:var(--text-muted)}.card__meta{min-width:0;flex:1;display:flex;flex-direction:column;gap:4px}.card__title{margin:0;font-size:1rem;line-height:1.3;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card__sub{margin:0;color:var(--text-muted);font-size:.85rem;display:flex;flex-wrap:wrap;gap:4px 10px}.card__sub>span+span:before{content:"·";margin-right:10px;color:var(--border-strong)}.card__uploader{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.card__badge{align-self:flex-start;display:inline-flex;align-items:center;gap:5px;font-size:.75rem;font-weight:700;padding:3px 9px;border-radius:999px;color:var(--badge-tint, var(--brand));border:1px solid currentColor;background:transparent}.card__source{margin:2px 0 0;font-size:.72rem;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.card__allbar .btn{width:100%}.card__grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.tile{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface-alt);display:flex;flex-direction:column}.tile__thumb{width:100%;aspect-ratio:1 / 1;object-fit:cover;display:block;border:0;border-radius:0;background:var(--surface)}.tile__thumb.thumb--empty{height:120px}.tile__body{padding:8px;display:flex;flex-direction:column;gap:6px}.tile__index{margin:0;font-size:.72rem;color:var(--text-muted);display:flex;justify-content:space-between}.controls{display:flex;flex-direction:column;gap:8px}.controls__row{display:flex;gap:8px;align-items:flex-end}.controls__row .btn{flex:none;min-width:130px;min-height:44px;border-radius:10px}.controls--compact .controls__row{flex-direction:column;gap:6px}.controls--compact .controls__row .btn{width:100%;min-width:0;min-height:40px;font-size:.88rem}.picker{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.picker__label{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);font-weight:700}.picker--compact .picker__label{display:none}.picker__control{position:relative;display:flex;align-items:center}.picker__select{width:100%;min-height:44px;appearance:none;-webkit-appearance:none;background:var(--surface-alt);border:1px solid var(--border-strong);border-radius:10px;padding:0 34px 0 12px;font-weight:600;font-size:.92rem;cursor:pointer}.picker__chevron{position:absolute;right:10px;pointer-events:none;color:var(--text-muted)}.picker__static{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;background:var(--surface-alt);border:1px solid var(--border);font-weight:600;font-size:.9rem;color:var(--text-muted)}.controls__note{margin:0;font-size:.85rem}.controls__note--warn{color:var(--danger)}.controls__note--muted{color:var(--text-muted)}.controls__fallback{border:1px solid var(--warn);background:var(--warn-soft);color:var(--text);border-radius:var(--radius);padding:10px 12px;font-size:.87rem}.controls__fallback p{margin:0 0 8px}.controls__fallback-actions{display:flex;flex-wrap:wrap;gap:8px}.assist{border:1px solid var(--border-strong);background:var(--surface-alt);border-radius:var(--radius);padding:12px;font-size:.88rem;display:flex;flex-direction:column;gap:8px}.assist__head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.assist__head p{margin:0;font-weight:650}.assist__close{border:none;background:none;color:var(--text-muted);font-size:1.15rem;line-height:1;cursor:pointer;padding:2px 6px}.assist__steps{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}.assist__pick{display:flex;flex-direction:column;gap:6px}.assist__label,.assist input[type=file]{font-size:.85rem}.progress{display:flex;flex-direction:column;gap:6px}.progress__line{display:flex;align-items:center;gap:8px;font-size:.88rem;font-weight:650}.progress__label{color:var(--text)}.progress--ready .progress__label,.progress--done .progress__label{color:var(--cta)}.progress__pct,.progress__detail{color:var(--text-muted);font-weight:550;font-variant-numeric:tabular-nums}.progress__dot{width:9px;height:9px;border-radius:999px;background:var(--brand);flex:none}.progress__dot--fetching,.progress__dot--downloading,.progress__dot--merging,.progress__dot--encoding{animation:pulse 1.1s ease-in-out infinite}.progress__dot--ready,.progress__dot--done{background:var(--cta)}.progress__track{height:6px;border-radius:999px;background:var(--surface-alt);border:1px solid var(--border);overflow:hidden}.progress__fill{height:100%;background:var(--brand);border-radius:999px;transition:width .2s ease}.progress__fill--indeterminate{width:35%;animation:slide 1.2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.35}}@keyframes slide{0%{margin-left:-35%}to{margin-left:100%}}@media(prefers-reduced-motion:reduce){.progress__dot,.progress__fill--indeterminate{animation:none}.progress__fill--indeterminate{width:100%;opacity:.4}}.skeleton{display:flex;gap:12px;padding:14px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface)}.skeleton__thumb{width:108px;height:76px;border-radius:var(--radius-sm);background:var(--surface-alt);animation:pulse 1.4s ease-in-out infinite}.skeleton__lines{flex:1;display:flex;flex-direction:column;gap:8px;padding-top:6px}.skeleton__lines span{height:12px;border-radius:6px;background:var(--surface-alt);animation:pulse 1.4s ease-in-out infinite}.skeleton__lines span:last-child{width:55%}.error-card{border:1px solid var(--danger);background:var(--danger-soft);border-radius:var(--radius-lg);padding:14px}.error-card--youtube{border-color:var(--brand);background:var(--brand-soft)}.error-card__body{display:flex;gap:10px;align-items:flex-start}.error-card__icon{color:var(--danger);flex:none;margin-top:1px}.error-card--youtube .error-card__icon{color:var(--brand)}.error-card__text{min-width:0}.error-card__message{margin:0;font-weight:650}.error-card__hint{margin:6px 0 0;font-size:.88rem;color:var(--text-muted)}.error-card__url{margin:0 0 4px;font-size:.75rem;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.platform-row{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 16px;justify-content:center}.platform-row__item{display:inline-flex;align-items:center;gap:6px;color:var(--text-muted);font-size:.82rem;font-weight:600}.platform-row--inline{justify-content:flex-start;margin-top:10px;gap:12px}.supported{margin-top:22px;text-align:center}.supported__label{margin:0 0 10px;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);font-weight:700}.ad-slot{margin:22px 0 0;border:1px dashed var(--border-strong);border-radius:var(--radius);background:var(--surface-alt);display:grid;place-items:center}.ad-slot__label{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted)}.steps{margin-top:26px}.steps__list{list-style:none;margin:0;padding:0;display:grid;gap:12px}.steps__list li{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px}.steps__num{width:28px;height:28px;flex:none;display:grid;place-items:center;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-weight:800;font-size:.85rem}.steps h2{margin:0 0 2px;font-size:.95rem}.steps p{margin:0;font-size:.87rem;color:var(--text-muted)}.site-footer{border-top:1px solid var(--border);background:var(--surface);margin-top:32px}.site-footer__inner{max-width:var(--maxw);margin:0 auto;padding:20px 16px 28px;text-align:center}.site-footer__links{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 20px;margin-bottom:10px}.site-footer__links a{color:var(--text);text-decoration:none;font-weight:600;font-size:.9rem;padding:6px 2px}.site-footer__links a:hover{color:var(--brand)}.site-footer__note{margin:0 auto 8px;max-width:52ch;font-size:.78rem;color:var(--text-muted)}.site-footer__affiliation{margin:0 auto 8px;max-width:58ch;font-size:.72rem;line-height:1.5;color:var(--text-muted);opacity:.85}.site-footer__copy{margin:0;font-size:.78rem;color:var(--text-muted)}@media(min-width:560px){.hero{padding:28px 0 16px}.hero__title{font-size:2.15rem}.hero__sub{font-size:1rem}.hero__sub-more{display:inline}.field{gap:12px}.steps__list{grid-template-columns:repeat(3,1fr)}}@media(min-width:860px){:root{--maxw: 780px}.card__grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}}.ad-native{margin:22px 0 0;display:flex;justify-content:center}.adgate{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px;background:#0f12188c;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.adgate__panel{width:min(520px,100%);background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius);box-shadow:var(--shadow-lg, 0 20px 50px rgba(0, 0, 0, .25));padding:16px}.adgate__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.adgate__title{font-weight:700;font-size:1rem;color:var(--text)}.adgate__go{border:0;border-radius:10px;padding:9px 16px;font-weight:700;font-size:.92rem;color:#fff;background:var(--brand);cursor:pointer}.adgate__go:hover{filter:brightness(1.05)}.adgate__ad{min-height:100px;display:flex;justify-content:center;align-items:center}.adgate__note{margin:10px 0 0;text-align:center;font-size:.75rem;color:var(--text-muted)}