:root { --blue:#1d62e8; --blue-dark:#123c91; --ink:#10234c; --muted:#5e6d88; --line:#dfe6f2; --paper:#fff; --bg:#f5f8fe; --soft:#edf4ff; --warning:#fff8e7; --success:#ecf8f1; --radius:20px; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; min-width:320px; overflow-x:hidden; background:var(--bg); color:var(--ink); font:16px/1.6 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color:inherit; }
.container { width:min(1080px, calc(100% - 40px)); margin-inline:auto; }
.site-header { position:sticky; top:0; z-index:10; background:rgba(255,255,255,.9); border-bottom:1px solid rgba(223,230,242,.85); backdrop-filter:blur(12px); }
.header-inner { min-height:68px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.brand { color:var(--ink); font-size:24px; font-weight:800; letter-spacing:-1.1px; text-decoration:none; }.brand span { color:var(--blue); }
.header-link { color:var(--blue-dark); font-size:14px; font-weight:700; text-decoration:none; }.header-link:hover { text-decoration:underline; }
.hero { padding:76px 0 45px; background:linear-gradient(145deg,#fff 0%,#edf4ff 100%); border-bottom:1px solid var(--line); }.eyebrow,.step-number { margin:0 0 8px; color:var(--blue); font-size:12px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; }
h1,h2,h3,p { margin-top:0; } h1,h2,h3 { color:var(--ink); line-height:1.18; letter-spacing:-.035em; }h1 { max-width:720px; margin-bottom:10px; font-size:clamp(38px,6vw,62px); } h2 { margin-bottom:0; font-size:clamp(28px,4vw,38px); } h3 { margin-bottom:14px; font-size:clamp(23px,3vw,30px); }.hero-lead { margin-bottom:8px; color:var(--blue-dark); font-size:clamp(20px,2.5vw,25px); font-weight:750; }.hero-copy { max-width:650px; margin-bottom:28px; color:var(--muted); font-size:18px; }
.guide-tabs { display:flex; flex-wrap:wrap; gap:10px; }.guide-tab { display:inline-flex; align-items:center; min-height:42px; border:1px solid var(--line); border-radius:999px; padding:8px 16px; background:#fff; font-size:14px; font-weight:750; text-decoration:none; }.guide-tab-active { border-color:var(--blue); background:var(--blue); color:#fff; }.guide-tab-disabled { color:#8994a8; background:#f7f8fa; cursor:not-allowed; }.guide-tab small,.button-disabled small { margin-left:7px; font-size:11px; font-weight:800; text-transform:uppercase; }
.guide { padding-block:50px 80px; }.section-heading { display:flex; align-items:end; justify-content:space-between; gap:24px; margin-bottom:20px; }.video-note { margin:0 0 4px; color:var(--muted); font-size:14px; }.guide-step { display:grid; grid-template-columns:minmax(260px,.83fr) minmax(0,1.35fr); gap:34px; align-items:center; margin-top:20px; padding:clamp(24px,4vw,42px); border:1px solid var(--line); border-radius:var(--radius); background:var(--paper); box-shadow:0 12px 30px rgba(37,70,128,.06); }.guide-step-text { grid-template-columns:1fr; }.step-content > :last-child { margin-bottom:0; }.step-content > p:not(.step-number) { color:#354665; }.screenshot { display:block; overflow:hidden; width:100%; border:1px solid #d7e0ef; border-radius:14px; padding:0; background:#f8faff; box-shadow:0 10px 24px rgba(27,53,101,.12); cursor:zoom-in; }.screenshot-stack { display:grid; gap:18px; }.screenshot:focus-visible,.button:focus-visible,.guide-tab:focus-visible,.header-link:focus-visible,.lightbox-close:focus-visible { outline:3px solid #91b5ff; outline-offset:3px; }.screenshot img { display:block; width:100%; height:auto; transition:transform .2s ease; }.screenshot:hover img { transform:scale(1.012); }
.button { display:inline-flex; align-items:center; justify-content:center; gap:8px; min-height:44px; border:1px solid transparent; border-radius:10px; padding:10px 16px; font:inherit; font-size:14px; font-weight:800; text-decoration:none; cursor:pointer; }.button-primary { background:var(--blue); color:#fff; }.button-primary:hover { background:var(--blue-dark); }.button-secondary { border-color:#c8d7ef; background:#fff; color:var(--blue-dark); }.button-secondary:hover { background:var(--soft); }.button-disabled { color:#8a95a7; background:#eef1f5; cursor:not-allowed; }.copy-row { display:flex; flex-wrap:wrap; align-items:center; gap:10px; }.address-code { display:inline-block; border:1px solid #cbd8ee; border-radius:10px; padding:9px 12px; background:#f2f6fe; color:#0f3c8f; font-size:16px; font-weight:750; }.copy-feedback { min-height:24px; margin:10px 0 0; color:#34775a; font-size:14px; }
.notice { margin:18px 0; border-left:4px solid #6a97f4; border-radius:8px; padding:12px 14px; background:var(--soft); color:#274571; font-size:14px; }.notice-important { border-color:#e8ab24; background:var(--warning); color:#654b0a; }.notice-security { border-color:#22a269; background:var(--success); color:#155d3e; }.subsection { margin-top:76px; }.subsection-heading { margin-bottom:18px; }.completion { margin-top:76px; border-radius:var(--radius); padding:clamp(28px,5vw,52px); background:linear-gradient(135deg,#163b8d,#1d62e8); color:#fff; }.completion h2 { color:#fff; }.completion .eyebrow { color:#bcd1ff; }.completion p { max-width:620px; color:#e7efff; }.completion .button-disabled { background:rgba(255,255,255,.14); color:#d8e6ff; }.site-footer { border-top:1px solid var(--line); padding:25px 0; color:#71809a; font-size:14px; }.lightbox { position:fixed; inset:0; z-index:100; display:grid; place-items:center; padding:clamp(20px,5vw,64px); background:rgba(7,18,44,.82); cursor:zoom-out; }.lightbox[hidden] { display:none; }.lightbox-image { display:block; max-width:100%; max-height:calc(100vh - 40px); border-radius:12px; box-shadow:0 24px 70px rgba(0,0,0,.45); cursor:default; }.lightbox-close { position:fixed; top:18px; right:18px; display:grid; width:42px; height:42px; place-items:center; border:0; border-radius:50%; background:#fff; color:var(--ink); font:32px/1 sans-serif; cursor:pointer; }.lightbox-open { overflow:hidden; }.home-shell { display:grid; min-height:100vh; place-items:center; gap:28px; padding:36px 20px; background:radial-gradient(circle at top right,#dce9ff 0,transparent 35%),var(--bg); }.home-shell .brand { position:absolute; top:32px; left:clamp(20px,6vw,72px); }.home-card { width:min(680px,100%); border:1px solid var(--line); border-radius:var(--radius); padding:clamp(32px,7vw,70px); background:#fff; box-shadow:0 20px 45px rgba(25,60,124,.1); }.home-card h1 { font-size:clamp(34px,5vw,55px); }.home-card p:not(.eyebrow) { color:var(--muted); font-size:18px; }
@media (max-width:760px) { .container { width:min(100% - 28px,1080px); }.site-header { position:static; }.header-inner { min-height:62px; }.header-link { font-size:12px; }.hero { padding:48px 0 34px; }.guide { padding-block:36px 56px; }.section-heading { display:block; }.video-note { margin-top:10px; }.guide-step { grid-template-columns:1fr; gap:22px; padding:24px 20px; }.guide-step .screenshot { order:2; }.subsection { margin-top:54px; }.completion { margin-top:54px; }.copy-row { align-items:stretch; }.copy-row .button { width:100%; }.address-code { width:100%; overflow:auto; }.home-shell .brand { position:static; }.home-shell { align-content:center; }.home-card { padding:34px 26px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior:auto; }.screenshot img { transition:none; } }