:root{
  color-scheme:dark;
  --bg:#06101f;
  --panel:#0b1729;
  --panel2:#0f1e33;
  --line:rgba(255,255,255,.10);
  --line2:rgba(255,255,255,.16);
  --text:#f6f8fb;
  --muted:#9fb0c6;
  --accent:#37d5ff;
  --accent2:#4f8cff;
  --green:#39e09b;
  --danger:#ff6b78;
  --shadow:0 24px 70px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(900px 500px at 50% -140px,rgba(55,213,255,.16),transparent 65%),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}
button,input,select{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
a{color:inherit;text-decoration:none}
.shell{width:min(1120px,calc(100% - 40px));margin-inline:auto}
.topbar{height:74px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1120px)/2));position:sticky;top:0;z-index:20;background:rgba(6,16,31,.86);backdrop-filter:blur(16px)}
.brand{display:flex;align-items:center;gap:11px;min-width:0}.brand-logo{display:block;width:176px;max-width:42vw;height:auto;object-fit:contain}.brand-product{display:inline-flex;align-items:center;border-left:1px solid rgba(255,255,255,.24);padding-left:11px;color:var(--muted);font-size:15px;font-weight:800;letter-spacing:.01em;white-space:nowrap}.top-actions{display:flex;align-items:center;gap:24px;color:var(--muted);font-size:14px}.top-actions a:hover{color:var(--text)}.free-pill{border:1px solid rgba(57,224,155,.28);background:rgba(57,224,155,.09);color:#8af2c5;border-radius:999px;padding:7px 11px;font-weight:700}
.hero{padding:78px 0 40px;display:grid;grid-template-columns:1.45fr .55fr;gap:42px;align-items:end}.eyebrow,.meta-label{font-size:12px;letter-spacing:.15em;font-weight:800;color:var(--accent)}.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.01;margin:14px 0 20px;letter-spacing:-.045em;max-width:850px}.hero h1 span{background:linear-gradient(90deg,#fff 10%,#7fe6ff 70%);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-lead{font-size:18px;color:var(--muted);max-width:760px;margin:0}.trust-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.trust-row span{font-size:13px;color:#c3cfdd;border:1px solid var(--line);border-radius:999px;padding:8px 12px;background:rgba(255,255,255,.025)}.browser-card{display:flex;gap:12px;border:1px solid var(--line);border-radius:18px;padding:16px;background:rgba(255,255,255,.025)}.browser-card .browser-icon{width:35px;height:35px;flex:0 0 auto;border-radius:11px;display:grid;place-items:center;background:rgba(55,213,255,.12);color:var(--accent);font-weight:900}.browser-card strong{font-size:14px}.browser-card p{font-size:12px;color:var(--muted);margin:3px 0 0}.browser-card.warn .browser-icon{background:rgba(255,183,77,.12);color:#ffc46e}
.compressor{padding-bottom:30px}.upload-panel,.workspace,.progress-card,.result-card{border:1px solid var(--line);background:linear-gradient(180deg,rgba(15,30,51,.96),rgba(9,21,38,.96));box-shadow:var(--shadow);border-radius:28px}.upload-panel{min-height:420px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:42px;border-style:dashed;outline:none;transition:.2s}.upload-panel:hover,.upload-panel.drag{border-color:rgba(55,213,255,.65);background:linear-gradient(180deg,rgba(17,39,64,.98),rgba(9,21,38,.98));transform:translateY(-1px)}.upload-icon{width:76px;height:76px;border-radius:24px;background:linear-gradient(145deg,rgba(55,213,255,.18),rgba(79,140,255,.12));display:grid;place-items:center;color:var(--accent);margin-bottom:20px}.upload-panel h2{font-size:28px;margin:0 0 4px}.upload-panel p{color:var(--muted);margin:0 0 22px}.upload-panel small{color:#6f849d;margin-top:13px}.primary,.secondary,.compress-btn,.icon-btn,.preset-row button,.mode-tab{border:0;cursor:pointer}.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#05111f;padding:13px 20px;border-radius:13px;font-weight:850;box-shadow:0 9px 26px rgba(55,213,255,.18)}.primary:hover{filter:brightness(1.07)}
.workspace{display:grid;grid-template-columns:1fr 1fr;overflow:hidden}.file-summary,.settings-card{padding:28px}.file-summary{border-right:1px solid var(--line)}.preview-wrap{aspect-ratio:16/9;border-radius:18px;overflow:hidden;background:#02060c;border:1px solid var(--line);display:grid;place-items:center}.preview-wrap video{width:100%;height:100%;object-fit:contain;background:#02060c}.file-meta{margin-top:23px}.file-heading,.settings-heading,.progress-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.file-heading h2,.settings-heading h2{margin:5px 0 0;font-size:20px;line-height:1.25;word-break:break-word}.icon-btn{border:1px solid var(--line);background:transparent;color:var(--muted);padding:8px 11px;border-radius:10px}.icon-btn:hover{color:var(--text);border-color:var(--line2)}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}.stat-grid div{border:1px solid var(--line);border-radius:14px;padding:12px;background:rgba(255,255,255,.018)}.stat-grid span,.estimate-box span,.result-stats span{font-size:11px;color:var(--muted);display:block}.stat-grid strong{font-size:13px;margin-top:3px;display:block}.privacy-badge{font-size:12px;color:#93f4cc;border:1px solid rgba(57,224,155,.25);background:rgba(57,224,155,.08);padding:7px 10px;border-radius:999px;white-space:nowrap}
.mode-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;background:rgba(255,255,255,.035);padding:5px;border-radius:13px;margin:24px 0 18px}.mode-tab{background:transparent;color:var(--muted);border-radius:10px;padding:10px;font-weight:750}.mode-tab.active{background:#172944;color:var(--text);box-shadow:0 2px 14px rgba(0,0,0,.16)}.field-label,.advanced-grid label>span{display:block;font-size:12px;color:#c8d5e5;font-weight:750;margin-bottom:8px}.target-row{display:grid;grid-template-columns:1fr 92px;gap:8px}.target-row input,.target-row select,.advanced-grid select{width:100%;border:1px solid var(--line2);background:#071426;color:var(--text);border-radius:12px;padding:12px 13px;outline:none}.target-row input:focus,.target-row select:focus,.advanced-grid select:focus{border-color:rgba(55,213,255,.55);box-shadow:0 0 0 3px rgba(55,213,255,.08)}.preset-row{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.preset-row button{color:var(--muted);background:rgba(255,255,255,.035);border:1px solid var(--line);padding:7px 10px;border-radius:9px;font-size:12px}.preset-row button:hover{color:var(--text);border-color:var(--line2)}.hint,.compat-note{font-size:12px;color:#7f93aa;margin:10px 0 0}.quality-grid{display:grid;gap:8px}.quality-grid label{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:13px;padding:11px 12px;cursor:pointer}.quality-grid label.selected{border-color:rgba(55,213,255,.42);background:rgba(55,213,255,.05)}.quality-grid input{accent-color:var(--accent)}.quality-grid span{display:flex;flex-direction:column}.quality-grid b{font-size:13px}.quality-grid small{font-size:11px;color:var(--muted)}.advanced-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.estimate-box{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}.estimate-box div{border:1px solid var(--line);border-radius:12px;padding:10px}.estimate-box strong{font-size:13px;margin-top:3px;display:block}.compress-btn{width:100%;margin-top:18px;border-radius:14px;padding:14px 18px;background:linear-gradient(135deg,#41dcff,#4f86ff);color:#04111f;font-weight:900;display:flex;flex-direction:column;align-items:center;box-shadow:0 12px 32px rgba(55,213,255,.15)}.compress-btn small{font-weight:650;opacity:.72;font-size:11px;margin-top:1px}.compress-btn:disabled{cursor:not-allowed;opacity:.42}.progress-card,.result-card{padding:30px}.progress-top h2{margin:5px 0 0}.progress-top>strong{font-size:32px;color:var(--accent)}.progress-track{height:10px;background:#06101d;border-radius:999px;margin-top:24px;overflow:hidden}.progress-track>div{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:inherit;transition:width .18s linear}.progress-details{display:flex;justify-content:space-between;gap:15px;margin-top:11px;color:var(--muted);font-size:12px}.secondary{border:1px solid var(--line2);background:transparent;color:var(--text);padding:11px 16px;border-radius:11px;font-weight:700}.danger{color:#ff9ca5;border-color:rgba(255,107,120,.28);margin-top:18px}.result-card{text-align:center}.result-icon{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;margin:0 auto 14px;background:rgba(57,224,155,.12);border:1px solid rgba(57,224,155,.25);color:var(--green);font-size:29px;font-weight:900}.result-card h2{font-size:28px;margin:4px 0 6px}.result-card>p{color:var(--muted);margin:0}.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:650px;margin:24px auto}.result-stats div{border:1px solid var(--line);border-radius:14px;padding:14px}.result-stats strong{display:block;margin-top:4px;font-size:18px}.result-actions{display:flex;justify-content:center;gap:9px;flex-wrap:wrap}.sda-cta{margin:26px auto 0;max-width:750px;border:1px solid var(--line);background:rgba(255,255,255,.025);padding:15px 17px;border-radius:15px;display:flex;justify-content:space-between;gap:16px;text-align:left;align-items:center}.sda-cta div{display:flex;flex-direction:column}.sda-cta span{font-size:12px;color:var(--muted)}.sda-cta a{font-size:13px;color:var(--accent);font-weight:800;white-space:nowrap}
.content-section{padding:75px 0 30px}.section-title{text-align:center}.section-title h2,.privacy-section h2{font-size:34px;margin:7px 0 0;letter-spacing:-.025em}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}.steps article{border:1px solid var(--line);border-radius:20px;padding:22px;background:rgba(255,255,255,.02)}.steps article>span{width:31px;height:31px;border-radius:10px;background:rgba(55,213,255,.1);color:var(--accent);display:grid;place-items:center;font-size:13px;font-weight:900}.steps h3{margin:18px 0 7px}.steps p,.privacy-section p{color:var(--muted);font-size:14px;margin:0}.privacy-section{margin-top:28px;margin-bottom:70px;border:1px solid var(--line);border-radius:24px;padding:30px;display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center;background:linear-gradient(120deg,rgba(55,213,255,.05),rgba(79,140,255,.025))}.footer{border-top:1px solid var(--line);padding:28px 0 36px;display:flex;gap:20px;align-items:center;color:var(--muted);font-size:12px}.footer p{margin:0;flex:1}.brand.compact .brand-logo{width:138px}.brand.compact .brand-product{font-size:12px;padding-left:9px}.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:50;max-width:min(520px,calc(100% - 28px));background:#15243a;border:1px solid var(--line2);box-shadow:var(--shadow);padding:12px 15px;border-radius:12px;font-size:13px}.hidden{display:none!important}

.tool-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:24px 0 18px}.tool-tab{border:1px solid var(--line);background:rgba(255,255,255,.025);color:var(--muted);border-radius:14px;padding:12px 14px;cursor:pointer;text-align:left;transition:.18s}.tool-tab span{display:block;font-size:14px;font-weight:850;color:#d7e3ef}.tool-tab small{display:block;margin-top:3px;font-size:11px;color:var(--muted)}.tool-tab.active{border-color:rgba(55,213,255,.45);background:linear-gradient(135deg,rgba(55,213,255,.09),rgba(79,140,255,.07));box-shadow:0 7px 22px rgba(0,0,0,.12)}.tool-tab.active span{color:var(--accent)}.converter-panel{border:1px solid var(--line);border-radius:16px;padding:15px;background:rgba(255,255,255,.018);margin-bottom:16px}.format-select{width:100%;border:1px solid var(--line2);background:#071426;color:var(--text);border-radius:12px;padding:12px 13px;outline:none}.format-select:focus{border-color:rgba(55,213,255,.55);box-shadow:0 0 0 3px rgba(55,213,255,.08)}.format-hint{font-size:12px;line-height:1.5;color:#879bb2;margin:9px 1px 0}.result-stats{grid-template-columns:repeat(4,1fr)}
@media(max-width:850px){.top-actions a{display:none}.hero{grid-template-columns:1fr;padding-top:50px}.workspace{grid-template-columns:1fr}.file-summary{border-right:0;border-bottom:1px solid var(--line)}.privacy-section{grid-template-columns:1fr;gap:16px}.steps{grid-template-columns:1fr}.hero h1{font-size:46px}}
@media(max-width:560px){.shell{width:min(100% - 24px,1120px)}.topbar{padding:0 14px}.brand-logo{width:132px;max-width:45vw}.brand-product{font-size:12px;padding-left:8px}.top-actions{gap:8px}.hero{padding-top:38px}.hero h1{font-size:38px}.hero-lead{font-size:15px}.upload-panel{min-height:350px;padding:28px 18px}.file-summary,.settings-card,.progress-card,.result-card{padding:19px}.stat-grid{grid-template-columns:1fr 1fr}.estimate-box{grid-template-columns:1fr}.advanced-grid{grid-template-columns:1fr}.result-stats{grid-template-columns:1fr}.progress-details{flex-direction:column;gap:3px}.sda-cta{flex-direction:column;align-items:flex-start}.footer{flex-wrap:wrap}.footer p{flex-basis:100%;order:3}}

/* v0.6 — portada de herramientas + conversión a audio */
.tool-home{padding:8px 0 42px}.tool-home-heading{text-align:center;max-width:720px;margin:0 auto 24px}.tool-home-heading h2{font-size:34px;margin:7px 0 8px;letter-spacing:-.03em}.tool-home-heading p{color:var(--muted);margin:0}.tool-choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.tool-choice-card{appearance:none;width:100%;border:1px solid var(--line);background:linear-gradient(145deg,rgba(15,30,51,.98),rgba(8,20,36,.98));color:var(--text);border-radius:24px;padding:26px;display:flex;gap:20px;text-align:left;cursor:pointer;box-shadow:var(--shadow);transition:transform .18s,border-color .18s,background .18s}.tool-choice-card:hover{transform:translateY(-3px);border-color:rgba(55,213,255,.55);background:linear-gradient(145deg,rgba(17,37,59,.99),rgba(8,20,36,.99))}.tool-choice-card.convert-card:hover{border-color:rgba(79,140,255,.62)}.tool-choice-icon{width:62px;height:62px;flex:0 0 auto;border-radius:19px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(55,213,255,.18),rgba(79,140,255,.12));color:var(--accent)}.tool-choice-icon svg{width:31px;height:31px}.convert-card .tool-choice-icon{color:#8fb5ff;background:linear-gradient(145deg,rgba(79,140,255,.2),rgba(55,213,255,.09))}.tool-choice-copy{display:flex;flex-direction:column;min-width:0}.tool-choice-copy strong{font-size:23px;letter-spacing:-.02em}.tool-choice-copy small{font-size:14px;color:var(--muted);line-height:1.55;margin-top:6px}.tool-choice-copy b{font-size:13px;color:var(--accent);margin-top:18px}.convert-card .tool-choice-copy b{color:#90b8ff}
.tool-nav{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:0 0 14px;border:1px solid var(--line);background:rgba(255,255,255,.018);border-radius:16px;padding:11px 14px}.tool-nav>div{display:flex;flex-direction:column;text-align:right}.tool-nav strong{font-size:14px}.back-tools{border:0;background:transparent;color:var(--muted);cursor:pointer;padding:7px 2px;font-weight:750}.back-tools:hover{color:var(--text)}
.media-kind-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:15px}.media-kind-tab{border:1px solid var(--line);background:rgba(255,255,255,.02);color:var(--muted);border-radius:13px;padding:11px 12px;cursor:pointer;text-align:left}.media-kind-tab span{display:block;font-weight:850;color:#d7e3ef}.media-kind-tab small{display:block;font-size:11px;margin-top:2px;color:var(--muted)}.media-kind-tab.active{border-color:rgba(55,213,255,.48);background:linear-gradient(135deg,rgba(55,213,255,.08),rgba(79,140,255,.07))}.media-kind-tab.active span{color:var(--accent)}.format-label{margin-top:4px}.audio-options{margin-top:15px;padding-top:2px}.field-disabled{opacity:.52}.field-disabled select{cursor:not-allowed}.stat-grid{grid-template-columns:repeat(4,1fr)}
@media(max-width:850px){.tool-choice-grid{grid-template-columns:1fr}.tool-home-heading h2{font-size:30px}.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.tool-choice-card{padding:20px;gap:14px}.tool-choice-icon{width:52px;height:52px;border-radius:16px}.tool-choice-copy strong{font-size:20px}.tool-nav{align-items:flex-start;flex-direction:column}.tool-nav>div{text-align:left}.media-kind-tabs{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr 1fr}}

/* SDA v439 - integracion publica / SEO / trafico hacia SDA SafeTech */
.sda-main-link{border:1px solid rgba(55,213,255,.18);padding:7px 11px;border-radius:999px;color:#cceefa!important;background:rgba(55,213,255,.05)}
.seo-section{padding:60px 0 28px}.seo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px}.seo-grid article{border:1px solid var(--line);background:rgba(255,255,255,.02);border-radius:20px;padding:22px}.seo-grid h3{font-size:18px;margin:0 0 8px}.seo-grid p,.seo-band p,.faq-public p,.sda-discovery p{color:var(--muted);font-size:14px;margin:0;line-height:1.7}
.seo-band{margin-top:24px;border:1px solid var(--line);border-radius:24px;padding:28px;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;background:linear-gradient(120deg,rgba(79,140,255,.06),rgba(55,213,255,.025))}.seo-band h2,.sda-discovery h2{font-size:30px;line-height:1.12;margin:7px 0 12px;letter-spacing:-.025em}.format-cloud{display:flex;flex-wrap:wrap;gap:9px;align-content:center}.format-cloud span{border:1px solid var(--line2);background:#071426;color:#cde2f2;border-radius:999px;padding:9px 12px;font-size:12px;font-weight:800}
.faq-public{padding:70px 0 24px}.faq-public-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:28px}.faq-public details{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.018);padding:0 16px}.faq-public summary{cursor:pointer;font-weight:800;padding:16px 0}.faq-public p{padding:0 0 16px}
.sda-discovery{margin-top:36px;margin-bottom:34px;border:1px solid rgba(55,213,255,.24);border-radius:24px;padding:30px;display:flex;justify-content:space-between;gap:30px;align-items:center;background:linear-gradient(135deg,rgba(55,213,255,.07),rgba(79,140,255,.04))}.sda-discovery>div{max-width:760px}.sda-discovery a{flex:0 0 auto;border-radius:13px;padding:13px 18px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#04111f;font-weight:900;box-shadow:0 10px 28px rgba(55,213,255,.14)}
@media(max-width:850px){.seo-grid,.seo-band,.faq-public-grid{grid-template-columns:1fr}.sda-discovery{align-items:flex-start;flex-direction:column}.top-actions .sda-main-link{display:inline-flex}.seo-band h2,.sda-discovery h2{font-size:26px}}
@media(max-width:560px){.top-actions .sda-main-link{display:none}.seo-section,.faq-public{padding-top:46px}.seo-band,.sda-discovery{padding:22px}.seo-grid article{padding:18px}}