:root{--bg: #0b1220;--bg-2: #0f1a2e;--bg-3: #131e34;--surface: #ffffff;--surface-2: #f8fafc;--surface-3: #eef2f7;--line: #1e2a44;--line-light: #e2e8f0;--brand: #10b981;--brand-2: #22d3ee;--brand-dark: #047857;--brand-tint: #ccfbf1;--accent: #f59e0b;--accent-soft: #fef3c7;--ink: #0b1220;--ink-2: #1e293b;--muted: #64748b;--muted-2: #94a3b8;--muted-3: #cbd5e1;--c-privacidad: #10b981;--c-amenazas: #ef4444;--c-autenticacion: #8b5cf6;--c-redes: #22d3ee;--c-certificados: #14b8a6;--c-ataques: #f59e0b;--c-conceptos: #ec4899;--font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Inter", sans-serif;--font-mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;--content-max: 1180px;--article-max: 720px;--radius-sm: 8px;--radius: 12px;--shadow-1: 0 1px 2px rgba(0,0,0,.06);--shadow-2: 0 4px 16px rgba(0,0,0,.08);--shadow-3: 0 12px 36px rgba(0,0,0,.18);--ring: 0 0 0 3px rgba(16,185,129,.25);--ease: cubic-bezier(.2,.8,.2,1)}*,*:before,*:after{box-sizing:border-box}html{-webkit-font-smoothing:antialiased;scroll-behavior:smooth;scroll-padding-top:90px;background:var(--surface-2)}body{margin:0;font-family:var(--font-sans);font-size:17px;line-height:1.7;color:var(--ink);background:var(--surface-2);min-height:100vh}img,svg{display:block;max-width:100%;height:auto}a{color:var(--brand-dark);text-decoration:none;transition:color .15s var(--ease)}a:hover{color:var(--brand)}::selection{background:var(--brand-tint);color:var(--ink)}h1,h2,h3,h4{font-family:var(--font-sans);font-weight:800;line-height:1.2;margin:1.4em 0 .55em;color:var(--ink);letter-spacing:-.02em}h1{font-size:clamp(2.1rem,5vw,3rem);margin-top:.15em;letter-spacing:-.025em}h2{font-size:clamp(1.4rem,3vw,1.7rem)}h3{font-size:1.18rem}p{margin:0 0 1em;color:var(--ink-2)}ul,ol{padding-left:1.4em}li{margin-bottom:.35em}hr{border:0;border-top:1px solid var(--line-light);margin:2.5rem 0}button{font:inherit;cursor:pointer}.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand) 0%,var(--brand-2) 100%);z-index:60;transition:width .08s linear}.site-header{position:sticky;top:0;z-index:50;background:#0b1220eb;backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid rgba(255,255,255,.07)}.site-header__row{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem 1.5rem;max-width:var(--content-max);margin:0 auto}.site-header__brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:#fff;font-weight:800;font-size:1.18rem;letter-spacing:-.02em}.site-header__brand:hover{color:#fff}.site-header__brand img{width:32px;height:32px;border-radius:8px}.site-header__brand .accent{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.site-header nav.primary{display:flex;align-items:center;gap:1.4rem;font-size:.94rem}.site-header nav.primary a{color:#ffffffbd;font-weight:500}.site-header nav.primary a:hover{color:#fff}@media(max-width:640px){.site-header nav.primary a:not(.cta){display:none}}.hero{padding:4.5rem 1.5rem 3rem;max-width:var(--content-max);margin:0 auto;text-align:center;position:relative;background:linear-gradient(180deg,#0b1220,#0f1a2e);color:#fff;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 30%,rgba(16,185,129,.18),transparent 50%),radial-gradient(circle at 80% 70%,rgba(34,211,238,.14),transparent 50%);pointer-events:none}.hero__inner{position:relative;z-index:1;max-width:800px;margin:0 auto}.hero__eyebrow{display:inline-flex;align-items:center;gap:.5rem;padding:.35rem 1rem;border-radius:999px;background:#10b98124;color:var(--brand-2);font-size:.82rem;font-weight:600;margin-bottom:1.2rem;font-family:var(--font-mono);letter-spacing:.04em;border:1px solid rgba(16,185,129,.3)}.hero h1{color:#fff;margin:0 auto 1rem;max-width:800px}.hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero p.lead{max-width:660px;margin:0 auto 2rem;color:#ffffffc7;font-size:1.08rem}.hero p.lead strong{color:#fff}.hero__search{position:relative;max-width:540px;margin:0 auto}.hero__search input{width:100%;padding:1rem 1.1rem 1rem 2.9rem;border:1.5px solid rgba(255,255,255,.14);border-radius:var(--radius);font-size:1rem;font-family:var(--font-mono);background:#ffffff0f;color:#fff;box-shadow:var(--shadow-3);transition:all .18s var(--ease)}.hero__search input::placeholder{color:#ffffff80}.hero__search input:focus{outline:none;border-color:var(--brand);box-shadow:var(--shadow-3),var(--ring);background:#ffffff1a}.hero__search svg{position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:18px;height:18px;color:#ffffff80}.hero__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;max-width:540px;margin:2.4rem auto 0;padding:1.4rem 0 0;border-top:1px solid rgba(255,255,255,.1)}.hero__stats div{text-align:center}.hero__stats strong{display:block;font-family:var(--font-mono);font-size:1.7rem;color:var(--brand-2);line-height:1;font-weight:800}.hero__stats span{font-size:.76rem;color:#ffffff8c;text-transform:uppercase;letter-spacing:.07em;margin-top:.35rem;display:block;font-family:var(--font-mono)}.section{max-width:var(--content-max);margin:4rem auto 0;padding:0 1.5rem}.cluster__head{display:flex;align-items:center;gap:1rem;margin-bottom:1.4rem;padding-bottom:1rem;border-bottom:1px solid var(--line-light)}.cluster__title{display:flex;align-items:center;gap:.65rem;margin:0;font-size:clamp(1.4rem,2.6vw,1.65rem)}.cluster__icon{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:var(--cluster-tint, var(--brand-tint));color:var(--cluster-color, var(--brand-dark));font-size:1.45rem;flex-shrink:0}.cluster__count{margin-left:auto;font-family:var(--font-mono);color:var(--muted);font-size:.85rem}.cluster__desc{color:var(--muted);margin:0 0 1.4rem;font-size:.96rem;max-width:720px}.cluster--privacidad{--cluster-color: var(--c-privacidad);--cluster-tint: #d1fae5}.cluster--amenazas{--cluster-color: var(--c-amenazas);--cluster-tint: #fee2e2}.cluster--autenticacion{--cluster-color: var(--c-autenticacion);--cluster-tint: #ede9fe}.cluster--redes{--cluster-color: var(--c-redes);--cluster-tint: #cffafe}.cluster--certificados{--cluster-color: var(--c-certificados);--cluster-tint: #ccfbf1}.cluster--ataques{--cluster-color: var(--c-ataques);--cluster-tint: #fef3c7}.cluster--conceptos{--cluster-color: var(--c-conceptos);--cluster-tint: #fce7f3}.tech-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:.75rem}.tech-card{display:block;padding:1.1rem 1.2rem;border:1px solid var(--line-light);border-radius:var(--radius);background:var(--surface);text-decoration:none;color:var(--ink);position:relative;transition:all .18s var(--ease)}.tech-card:hover{border-color:var(--cluster-color, var(--brand));transform:translateY(-2px);box-shadow:var(--shadow-2);text-decoration:none}.tech-card__head{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.4rem}.tech-card__term{font-weight:800;font-size:1.1rem;letter-spacing:-.01em}.tech-card__cat{font-family:var(--font-mono);font-size:.68rem;color:var(--cluster-color, var(--brand-dark));text-transform:uppercase;letter-spacing:.1em;padding:2px 8px;background:var(--cluster-tint);border-radius:999px;flex-shrink:0}.tech-card__short{color:var(--muted);font-size:.9rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}.article{max-width:var(--article-max);margin:0 auto;padding:2rem 1.5rem 3rem;background:var(--surface)}.article__breadcrumbs{font-family:var(--font-mono);font-size:.8rem;color:var(--muted);margin:0 0 1.2rem;display:flex;flex-wrap:wrap;gap:.35rem;align-items:center}.article__breadcrumbs a{color:var(--muted);text-decoration:none}.article__breadcrumbs a:hover{color:var(--ink);text-decoration:underline}.article__breadcrumbs .sep{color:var(--muted-2)}.article__pillbar{display:flex;flex-wrap:wrap;gap:.4rem .6rem;margin:0 0 1.4rem;font-family:var(--font-mono);font-size:.76rem}.pill{display:inline-flex;align-items:center;gap:.3rem;padding:.25rem .65rem;border-radius:999px;background:var(--surface-3);border:1px solid var(--line-light);color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.pill--cluster{background:var(--cluster-tint, var(--brand-tint));border-color:transparent;color:var(--cluster-color, var(--brand-dark));font-weight:600}.article__term-block{margin-bottom:1.6rem}.article__term{font-size:clamp(2.4rem,6vw,3.4rem);font-weight:800;letter-spacing:-.025em;margin:0 0 .25rem;line-height:1}.article__term-full{font-family:var(--font-mono);font-size:.85rem;color:var(--muted)}.answer-card{background:var(--surface-2);border-left:4px solid var(--cluster-color, var(--brand));border-radius:0 var(--radius) var(--radius) 0;padding:1.2rem 1.4rem;margin:0 0 1.8rem;box-shadow:var(--shadow-1)}.answer-card__label{font-family:var(--font-mono);font-size:.7rem;color:var(--cluster-color, var(--brand-dark));text-transform:uppercase;letter-spacing:.12em;font-weight:700;display:block;margin-bottom:.5rem}.answer-card p{margin:0;font-size:1.06rem}.section-block{margin:2rem 0}.protect-card{background:linear-gradient(135deg,#ecfdf5,#cffafe);border:1px solid #a7f3d0;border-radius:var(--radius);padding:1.4rem 1.6rem;margin:2rem 0}.protect-card h2{margin-top:0;font-size:1.2rem;color:var(--brand-dark);display:flex;align-items:center;gap:.5rem}.protect-card h2:before{content:"🛡️";font-size:1.2rem}.protect-card p{margin:0;color:var(--ink-2)}.fun-facts{background:var(--surface-2);border-left:3px solid var(--brand-2);border-radius:0 var(--radius) var(--radius) 0;padding:1.3rem 1.5rem;margin:2rem 0}.fun-facts h2{margin-top:0;font-size:1.2rem}.fun-facts ul{list-style:none;padding:0;margin:0}.fun-facts li{position:relative;padding:.55rem 0 .55rem 1.5rem;border-bottom:1px dashed var(--line-light);color:var(--ink-2)}.fun-facts li:last-child{border-bottom:0}.fun-facts li:before{content:"◆";position:absolute;left:0;top:.55rem;color:var(--brand-2)}.faqs{margin:2rem 0}.faqs details{border:1px solid var(--line-light);border-radius:var(--radius);padding:.95rem 1.1rem;margin-bottom:.55rem;background:var(--surface);transition:all .15s var(--ease)}.faqs details:hover{border-color:var(--brand)}.faqs details[open]{border-color:var(--brand);background:var(--surface-2)}.faqs summary{cursor:pointer;font-weight:600;list-style:none;position:relative;padding-right:2rem;color:var(--ink)}.faqs summary::-webkit-details-marker{display:none}.faqs summary:after{content:"+";position:absolute;right:0;top:-2px;font-size:1.4rem;color:var(--brand);transition:transform .2s var(--ease);line-height:1}.faqs details[open] summary:after{content:"−"}.faqs details p{margin:.85rem 0 0;color:var(--ink-2)}.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin:2.5rem 0 1rem}.prevnext a{display:flex;flex-direction:column;padding:1rem 1.1rem;border:1px solid var(--line-light);border-radius:var(--radius);background:var(--surface);color:var(--ink);text-decoration:none;transition:all .18s var(--ease)}.prevnext a:hover{border-color:var(--brand);background:var(--surface-2);transform:translateY(-1px);text-decoration:none}.prevnext .label{font-family:var(--font-mono);font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:.35rem}.prevnext .name{font-weight:700;font-size:1.05rem}.prevnext .next{text-align:right}@media(max-width:540px){.prevnext{grid-template-columns:1fr}.prevnext .next{text-align:left}}.related h2{font-size:1.2rem}.related__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.55rem}.related__card{display:flex;flex-direction:column;gap:.15rem;padding:.8rem 1rem;border:1px solid var(--line-light);border-radius:var(--radius);background:var(--surface);color:var(--ink);text-decoration:none;transition:all .15s var(--ease)}.related__card:hover{border-color:var(--brand);background:var(--surface-2);text-decoration:none}.related__card .term{font-weight:700;font-size:.98rem}.related__card .desc{font-size:.8rem;color:var(--muted)}.cookie-banner{position:fixed;bottom:1rem;left:1rem;right:1rem;max-width:540px;margin:0 auto;background:var(--ink);color:#fff;padding:1.1rem 1.3rem;border-radius:var(--radius);box-shadow:var(--shadow-3);z-index:100;font-size:.92rem;line-height:1.5;animation:slideUp .3s var(--ease);border:1px solid rgba(16,185,129,.3)}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.cookie-banner p{margin:0 0 .85rem;color:#ffffffd9}.cookie-banner a{color:var(--brand-2);text-decoration:underline}.cookie-banner__buttons{display:flex;gap:.55rem;justify-content:flex-end}.cookie-banner button{padding:.55rem 1.15rem;border-radius:8px;border:0;font-weight:600;font-size:.88rem;font-family:inherit;transition:all .15s var(--ease)}.cookie-banner button.accept{background:var(--brand);color:#fff}.cookie-banner button.accept:hover{background:var(--brand-dark)}.cookie-banner button.reject{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3)}.cookie-banner button.reject:hover{background:#ffffff14}.legal{max-width:var(--article-max);margin:0 auto;padding:2rem 1.5rem 3rem;background:var(--surface)}.legal h1{margin-top:.5rem}.legal h2{margin-top:2rem}.site-footer{margin-top:5rem;background:var(--ink);color:#ffffffbd;padding:3rem 1.5rem 1.6rem}.site-footer__grid{max-width:var(--content-max);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem}.site-footer h4{color:#fff;font-size:.82rem;margin:0 0 .9rem;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.12em;font-weight:600}.site-footer__brand h4{font-size:1.25rem;text-transform:none;letter-spacing:-.01em;font-family:var(--font-sans);font-weight:800}.site-footer p{color:#fff9;font-size:.92rem;max-width:380px}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin-bottom:.45em}.site-footer a{color:#ffffffbd;text-decoration:none}.site-footer a:hover{color:var(--brand-2)}.site-footer__bottom{max-width:var(--content-max);margin:2.5rem auto 0;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem;font-family:var(--font-mono);font-size:.8rem;color:#ffffff80}@media(max-width:760px){.site-footer__grid{grid-template-columns:1fr 1fr;gap:1.6rem}.site-footer__brand{grid-column:1 / -1}}@media(max-width:460px){.site-footer__grid{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}