:root{color-scheme:light;--bg:#f0f8ff;--surface:#fff;--surface2:#e4f3fc;--text:#0a2032;--muted:#4c677e;--brand:#008cc9;--cyan:#19c6df;--border:#c8e3f4;--shadow:0 22px 60px #0b83b619;--gradient:linear-gradient(115deg,#0085c3,#1bc8dd)}
:root.dark{color-scheme:dark;--bg:#08121e;--surface:#101f2d;--surface2:#142c40;--text:#eaf6ff;--muted:#a9c1d5;--brand:#35b8f4;--cyan:#43d9e7;--border:#294459;--shadow:0 22px 60px #0004}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.7 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}svg{width:24px;height:24px;flex:none}img{max-width:100%}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.12;letter-spacing:-.045em}h1{font-size:clamp(42px,4.8vw,70px);font-weight:800;margin-bottom:26px}h2{font-size:clamp(28px,3.3vw,43px);font-weight:750;margin-bottom:20px}h3{font-size:22px;letter-spacing:-.025em}p{color:var(--muted)}.wrap{width:min(1180px,calc(100% - 64px));margin-inline:auto}.skip{position:absolute;top:-100px;left:20px;z-index:100;background:var(--surface);padding:10px}.skip:focus{top:10px}:focus-visible{outline:3px solid var(--brand);outline-offset:5px;border-radius:4px}.header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;gap:25px;min-height:74px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:19px;font-weight:750;color:var(--text);white-space:nowrap;line-height:1.2}.brand:hover{text-decoration:none}.brand img{border-radius:12px;box-shadow:0 3px 15px #008cc923;object-fit:contain}.brand b{color:var(--brand)}.brand-small{display:block;margin-top:7px;color:var(--muted);font-size:12px;font-weight:500}.header nav{display:flex;align-items:center;gap:25px;margin-left:auto;font-size:13px;font-weight:650}.header nav a{color:var(--muted)}.header nav .current{color:var(--brand);background:var(--surface2);padding:8px 14px;border-radius:30px}.theme-toggle{height:37px;width:42px;border-radius:30px;border:1px solid var(--border);background:var(--surface);color:var(--brand);font-size:24px;cursor:pointer}.hero{position:relative;padding:100px 0 85px;background:radial-gradient(ellipse at 90% 55%,#27c8e21a,transparent 60%),linear-gradient(90deg,#0099ee06 1px,transparent 1px),linear-gradient(#0099ee06 1px,transparent 1px);background-size:auto,64px 64px,64px 64px;border-bottom:1px solid var(--border);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:65px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--border);border-radius:99px;padding:5px 12px;color:var(--brand);font-size:12px;font-weight:700;background:var(--surface2);margin-bottom:28px}.status-dot{height:7px;width:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 3px #14c3df20}.gradient{background:var(--gradient);background-clip:text;-webkit-background-clip:text;color:transparent}.lead{font-size:19px;line-height:1.65;max-width:630px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 23px}.button{min-height:50px;display:inline-flex;justify-content:center;align-items:center;gap:12px;padding:13px 22px;border-radius:13px;font-weight:700;font-size:14px;text-align:center}.button svg{height:18px;width:18px}.button:hover{text-decoration:none;filter:brightness(1.06)}.primary{color:#fff;background:var(--gradient);box-shadow:0 10px 28px #008cc92b}.secondary{background:var(--surface);border:1px solid var(--border);color:var(--text)}.hero-facts{display:flex;gap:24px;flex-wrap:wrap;font-size:12px;font-weight:600;color:var(--muted)}.hero-facts span{display:flex;align-items:center;gap:5px}.hero-facts svg{width:15px;height:15px;color:var(--brand)}.account-note{font-size:12px;margin-top:18px}.account-note a{text-decoration:underline}.visual{position:relative;min-width:0;padding:18px 0 30px}.library{background:var(--surface);border:1px solid var(--border);border-radius:23px;box-shadow:var(--shadow);transform:rotate(-2deg);overflow:hidden}.library-bar{height:51px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 21px}.library-brand{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:750}.library-brand svg{width:18px;color:var(--brand)}.window-dots{display:flex;gap:5px}.window-dots i{width:5px;height:5px;background:var(--border);border-radius:50%}.library-content{padding:23px}.library-heading{display:flex;align-items:start;justify-content:space-between;gap:12px}.overline{display:block;font:700 10px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.15em;color:var(--brand);margin-bottom:15px}.library-heading .overline{font-size:8px;margin-bottom:6px}.library-heading h2{font-size:20px;letter-spacing:-.035em;margin-bottom:20px}.small-badge{white-space:nowrap;font-size:8px;background:var(--surface2);color:var(--brand);border-radius:30px;padding:3px 8px}.photo-main{position:relative;border-radius:13px;overflow:hidden;aspect-ratio:1.74}.scene{height:100%;width:100%;display:block;object-fit:cover}.photo-label{position:absolute;bottom:12px;left:16px;color:#fff;font-size:10px;font-weight:650}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:10px}.mini{height:75px;border-radius:9px;position:relative;overflow:hidden}.mountain{background:linear-gradient(145deg,transparent 48%,#386a74 49%,#214354 77%,#235e73 78%),linear-gradient(25deg,#9cbdaf 40%,#e2d9b4 41%,#d5ebea 68%)}.sunset{background:radial-gradient(circle at 65% 35%,#fff2c3 0 10%,transparent 11%),linear-gradient(15deg,#603f72 25%,#af7c84 26%,#efba9f 60%,#eed6bc)}.sea{background:linear-gradient(155deg,#93d9d1 45%,#e9ddbe 46% 68%,#a7c3a1 69%)}.library-bottom{display:flex;gap:8px;align-items:center;margin-top:17px;font-size:10px;color:var(--muted)}.library-bottom svg{width:14px;height:14px}.library-bottom span{margin-left:auto}.float-card{position:absolute;bottom:5px;right:-18px;border:1px solid var(--border);border-radius:15px;background:var(--surface);box-shadow:var(--shadow);display:flex;align-items:center;gap:13px;padding:16px 20px;transform:rotate(2deg)}.float-card>svg{color:var(--brand);width:28px;height:28px}.float-card strong{display:block;font-size:11px;color:var(--text)}.float-card span{display:block;font-size:9px;color:var(--muted)}.illustration-note{position:absolute;bottom:-25px;right:0;font-size:9px;opacity:.8}.section{padding-block:75px;scroll-margin-top:20px}.section-intro{max-width:680px;margin-bottom:35px}.section-intro>p{margin-bottom:0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--surface);border:1px solid var(--border);border-radius:19px;padding:30px 27px}.icon-box{height:46px;width:46px;display:grid;place-items:center;color:var(--brand);background:var(--surface2);border:1px solid var(--border);border-radius:13px;margin-bottom:26px}.card h3{font-size:20px}.card p{font-size:14px;line-height:1.85;margin-bottom:0}.security-panel{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:80px}.security-panel p{font-size:15px}.text-link{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:700}.text-link svg{width:17px}.security-list{display:grid;gap:23px;align-content:center}.security-list>div{display:flex;gap:17px}.security-list svg{color:var(--brand);margin-top:2px}.security-list p{margin:0}.security-list strong{color:var(--text);display:block;font-size:14px;margin-bottom:5px}.security-list span{font-size:13px;display:block;line-height:1.8}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:45px}.steps article{border-top:1px solid var(--border);padding-top:22px}.steps article>span{font:700 24px ui-monospace,monospace;color:var(--brand);display:block;margin-bottom:27px}.steps h3{font-size:20px}.steps p{font-size:14px}.faq{border-top:1px solid var(--border)}details{border-bottom:1px solid var(--border);padding:22px 0}summary{font-size:16px;font-weight:650;cursor:pointer;color:var(--text)}details p{max-width:850px;font-size:14px;padding-top:20px;margin:0}.contact-panel{padding:42px;background:var(--surface2);border:1px solid var(--border);border-radius:22px;display:flex;align-items:center;justify-content:space-between;gap:35px}.contact-panel h2{font-size:31px}.contact-panel p{font-size:14px;margin:0}.contact-panel .button{white-space:nowrap}.footer{margin-top:35px;padding:45px 0 28px;border-top:1px solid var(--border);background:var(--surface)}.footer-top{display:flex;justify-content:space-between;align-items:center;gap:35px}.footer nav{display:flex;gap:22px;flex-wrap:wrap;font-size:12px}.footer nav a{color:var(--muted)}.footer-bottom{margin-top:35px;padding-top:22px;border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted)}.legal-header{padding-top:60px;padding-bottom:45px}.back-link{display:inline-block;font-size:13px;margin-bottom:35px}.legal-header h1{font-size:clamp(36px,4vw,56px)}.legal-header .lead{font-size:18px;max-width:760px}.updated{font-size:11px;margin:25px 0 0;color:var(--muted)}.legal-grid{display:grid;grid-template-columns:250px minmax(0,1fr);gap:64px;padding-bottom:65px;align-items:start}.toc{position:sticky;top:110px;padding:22px 20px;background:var(--surface);border:1px solid var(--border);border-radius:16px}.toc h2{font-size:13px;letter-spacing:0}.toc nav{display:grid;gap:11px}.toc nav a{font-size:11px;line-height:1.55;color:var(--muted)}.contact-link{display:block;margin-top:24px;font-size:11px;overflow-wrap:anywhere}.legal-content{min-width:0}.legal-section{border-top:1px solid var(--border);padding-top:30px;margin-bottom:37px;scroll-margin-top:105px}.legal-section h2{font-size:23px;line-height:1.3;letter-spacing:-.02em}.legal-section p,.legal-section li{font-size:14px;line-height:1.95;color:var(--muted)}.legal-section strong{color:var(--text)}.legal-section ul,.legal-section ol{padding-left:22px}.legal-section li{padding-left:5px;margin-bottom:10px}.legal-section a{text-decoration:underline;text-underline-offset:3px}.legal-section .button{text-decoration:none;margin-block:12px 17px}.table-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:12px;margin-bottom:20px}table{border-collapse:collapse;width:100%;font-size:12px;line-height:1.8}th{text-align:left;color:var(--text);background:var(--surface2)}th,td{padding:15px;vertical-align:top;border-bottom:1px solid var(--border)}td{color:var(--muted)}td:first-child{width:26%;font-weight:650;color:var(--text)}tr:last-child td{border:0}.notice{padding:22px;background:var(--surface2);border:1px solid var(--border);border-radius:13px;margin-bottom:25px}.notice p{margin:8px 0 0}.timeline{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:23px}.timeline>*{font-size:11px;padding:7px 10px;background:var(--surface2);border:1px solid var(--border);border-radius:8px}.small{font-size:12px!important}code{font-size:.9em;overflow-wrap:anywhere}
@media(min-width:1700px){.hero{padding-block:125px}}@media(max-width:1000px){.hero{padding-block:65px}.hero-grid{gap:35px}h1{font-size:48px}.lead{font-size:17px}.float-card{right:-5px;padding:13px}.library-content{padding:17px}.library-heading h2{font-size:17px}.small-badge{display:none}.security-panel{gap:35px;padding:32px}.footer-top{align-items:start}.footer nav{max-width:430px}.contact-panel{padding:30px}.contact-panel h2{font-size:27px}.contact-panel .button{font-size:12px;padding-inline:15px}.legal-grid{grid-template-columns:210px minmax(0,1fr);gap:30px}}@media(max-width:760px){.wrap{width:calc(100% - 36px)}.header-inner{gap:14px;min-height:68px;flex-wrap:wrap;padding-block:12px}.brand{font-size:17px}.brand img{height:36px;width:36px}.header nav{order:3;width:100%;margin:0;justify-content:space-between;gap:10px;font-size:12px}.theme-toggle{margin-left:auto;height:32px;width:38px}.hero{padding:50px 0 60px}.hero-grid{grid-template-columns:1fr;gap:30px}.hero-copy{max-width:580px}.eyebrow{font-size:10px;margin-bottom:24px}h1{font-size:clamp(39px,8.8vw,58px);letter-spacing:-.045em}.lead{font-size:16px}.hero-facts{gap:16px;font-size:11px}.button{font-size:13px;padding:12px 17px}.visual{width:min(480px,calc(100% - 12px));margin:0 auto;padding:12px 0 27px}.library-heading h2{font-size:21px}.library-content{padding:21px}.small-badge{display:block}.float-card{right:-8px;padding:13px 16px}.float-card strong{font-size:10px}.illustration-note{bottom:-10px}.section{padding-block:42px}.section-intro{margin-bottom:26px}h2{font-size:30px}.cards,.steps{grid-template-columns:1fr;gap:16px}.card{padding:27px}.icon-box{margin-bottom:21px}.security-panel{grid-template-columns:1fr;padding:27px;gap:27px}.security-panel h2 br{display:none}.steps{gap:25px}.steps article>span{margin-bottom:16px}.contact-panel{display:block;padding:27px}.contact-panel .button{margin-top:25px;width:100%;font-size:13px}.footer-top{flex-direction:column;gap:28px}.footer nav{display:grid;grid-template-columns:1fr 1fr;gap:15px 25px;font-size:11px}.footer-bottom{font-size:10px;gap:15px;flex-wrap:wrap}.legal-header{padding-top:35px;padding-bottom:30px}.back-link{margin-bottom:25px}.legal-header h1{font-size:36px}.legal-header .lead{font-size:16px}.legal-grid{display:flex;flex-direction:column;gap:30px}.toc{position:static;width:100%;padding:20px}.toc nav{grid-template-columns:1fr 1fr;gap:12px 20px}.contact-link{margin-top:18px}.legal-section h2{font-size:23px}.legal-section p,.legal-section li{font-size:14px}.table-scroll{margin-inline:0}th,td{padding:12px;font-size:11px}.timeline{flex-direction:column;align-items:start}.updated{line-height:1.8}.legal-section{scroll-margin-top:145px}.legal-section .button{width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Real app screenshot, displayed uncropped at its original aspect ratio. */
.hero-real{padding-block:56px}.app-preview{margin:0;display:flex;flex-direction:column;align-items:center;padding:0;gap:14px}.app-shot{width:min(100%,262px);line-height:0;border:6px solid #182333;border-radius:25px;overflow:hidden;box-shadow:0 30px 65px #007fa326,0 6px 18px #061e3326;background:#111216}.app-shot img{display:block;width:100%;height:auto}.app-preview figcaption{font-size:11px;color:var(--muted);text-align:center;line-height:1.6}.hero-real .hero-grid{grid-template-columns:1.18fr 1fr}@media(max-width:760px){.hero-real{padding-block:45px}.hero-real .hero-grid{grid-template-columns:1fr;gap:36px}.app-preview{width:100%}.app-shot{width:min(100%,280px)}}

/* Shared OptiShield X identity, matching the main site header. */
.header .site-brand-mark{position:relative;display:inline-flex;flex-shrink:0;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,rgba(2,132,199,.12),rgba(56,189,248,.08));border:1px solid rgba(2,132,199,.32);box-shadow:0 8px 22px rgba(2,132,199,.22)}.header .brand .site-brand-mark img{width:32px;height:32px;object-fit:contain;border-radius:0;box-shadow:none}.dark .header .site-brand-mark{border-color:var(--border)}