:root{color-scheme:dark;--bg:#080e1b;--panel:#121e32;--panel2:#16253c;--border:#293954;--text:#edf3ff;--muted:#b6c6df;--accent:#75a1ff;--mint:#5be7bd;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(ellipse 60% 32% at 52% 3%,#1a3156 0%,transparent 79%),var(--bg);color:var(--text);line-height:1.6}
a{color:#a6c7ff;text-underline-offset:4px}
a:hover{color:white}
a:focus-visible{outline:3px solid var(--mint);outline-offset:4px;border-radius:3px}
.container{max-width:1130px;margin:0 auto;padding:0 25px}
.site-header{border-bottom:1px solid #24344d;background:#0b1322ee}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:79px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-size:1.29rem;font-weight:850;letter-spacing:-.03em}
.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;background:linear-gradient(135deg,#83bcff,#7890ff);color:#081323;border-radius:10px;font-weight:900}
.navigation{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.navigation a{font-size:.91rem;color:#c9d7ed;text-decoration:none;font-weight:650}
.navigation a:hover{color:white}
.navigation .nav-cta{background:#d9e5ff;color:#0b1a36;padding:9px 18px;border-radius:10px}
.navigation .nav-cta:hover{color:#050f27;background:#fff}
.eyebrow{font-size:.79rem;text-transform:uppercase;font-weight:750;letter-spacing:.15em;color:var(--mint)}
.hero{padding:96px 0 84px;display:grid;grid-template-columns:1.05fr .95fr;gap:55px;align-items:center}
.hero h1{font-size:clamp(2.5rem,5.2vw,4.3rem);letter-spacing:-.057em;line-height:1.075;margin:18px 0 24px}
.highlight{color:#90b4ff}
.lead{color:#c3d1e5;font-size:1.13rem;line-height:1.8;max-width:560px}
.actions{display:flex;gap:13px;flex-wrap:wrap;margin:31px 0}
.btn{display:inline-block;border-radius:12px;padding:13px 20px;font-weight:740;text-decoration:none}
.btn-primary{background:#90b4ff;color:#08172f}
.btn-primary:hover{color:#07132b;background:#c8dbff}
.btn-secondary{border:1px solid #496082;color:var(--text)}
.btn-secondary:hover{border-color:#95c0ff;color:white}
.disclaimer{color:#b7c5de;font-size:.86rem;max-width:580px}
.mockup{background:linear-gradient(140deg,#17263c,#0e192d);border:1px solid #496183;box-shadow:0 26px 90px #0008;border-radius:19px;padding:19px}
.mock-top{display:flex;gap:7px;padding:1px 0 14px;border-bottom:1px solid #38516d}
.dot{height:10px;width:10px;border-radius:50%;background:#6c7d95}
.dot:nth-child(1){background:#ec8f90}.dot:nth-child(2){background:#e4bd6f}.dot:nth-child(3){background:#76c6b4}
.mock-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;color:#b8c7df;font-size:.77rem;margin:18px 0}
.mock-label{font-size:.78rem;color:#a4bbd9}
.mock-panel{border:1px solid #355073;background:#101e31;border-radius:12px;padding:19px;margin-bottom:11px}
.mock-line{display:flex;justify-content:space-between;gap:10px;align-items:center}
.mock-line strong{font-size:1rem}
.pill{background:#214837;border:1px solid #3e7b62;color:#b6f8de;border-radius:20px;font-size:.7rem;padding:4px 9px}
.pill-off{background:#2c344c;border-color:#52607b;color:#dce7fb}
.mock-msg{font-size:.85rem;color:#c6d7ee;padding:12px 14px;border-left:2px solid #799def;background:#172841;margin-top:14px;border-radius:0 9px 9px 0}
.mock-small{font-size:.8rem;color:#a8bdd7}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{background:#0d1929;border-radius:10px;padding:15px;font-size:.76rem;color:#c9d8ed}
.stat strong{display:block;font-size:1.42rem;color:white}
.section{padding:76px 0}
.section h2,.page-title{font-size:clamp(1.9rem,3.8vw,2.65rem);letter-spacing:-.038em;line-height:1.16;margin:9px 0 18px}
.section-lead{max-width:720px;color:#becde2;margin-bottom:32px}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:27px}
.card .number{color:var(--mint);font-weight:850;font-size:.8rem;letter-spacing:.1em}
.card h3{margin:13px 0 10px;font-size:1.18rem}
.card p{margin:0;color:#c0cee4}
.section-dark{background:#0d1728;border-block:1px solid #20314a}
.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.info-list{padding:0;list-style:none}
.info-list li{padding:15px 0;border-bottom:1px solid #283a54}
.info-list strong{display:block;color:#eaf2ff}
.info-list span{color:#becee6;font-size:.94rem}
.callout{background:linear-gradient(135deg,#162b47,#14253b);border:1px solid #49648b;border-radius:20px;padding:36px}
.callout h2{margin:0 0 14px}
.callout p{color:#c9d8ee}
.site-footer{border-top:1px solid #27374f;padding:39px 0 48px;color:#b8c9e0;font-size:.9rem}
.footer-grid{display:flex;justify-content:space-between;align-items:start;gap:35px;flex-wrap:wrap}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{color:#b8c9e0}
.footer-note{margin-top:26px;color:#94aacb}
.page{max-width:790px;margin:0 auto;padding:76px 25px 95px}
.page h1{font-size:clamp(2.2rem,5vw,3.2rem);letter-spacing:-.04em;line-height:1.13}
.page h2{font-size:1.28rem;margin-top:31px}
.page p,.page li{color:#c8d6e9}
.page ul{padding-left:22px}
.page a{overflow-wrap:anywhere}
.legal-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:26px;margin:24px 0}
.notice{border-left:3px solid #8bafff;background:#15243a;padding:14px 20px;border-radius:0 9px 9px 0;color:#d4e4fc}
@media(max-width:900px){.hero{grid-template-columns:1fr;gap:25px;padding:73px 0}.mockup{max-width:620px}.cards{grid-template-columns:1fr}.two-cols{grid-template-columns:1fr}}
@media(max-width:550px){.container{padding:0 17px}.nav-inner{align-items:flex-start;flex-direction:column;padding:18px 0}.navigation{gap:14px}.navigation a{font-size:.83rem}.navigation .nav-cta{padding:8px 12px}.hero{padding:49px 0}.hero h1{font-size:2.52rem}.section{padding:54px 0}.callout{padding:25px}.stats{grid-template-columns:1fr 1fr}.footer-grid{flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Step 137: public no-login demo. All UI state stays in browser memory. */
.field-label{display:block;color:#d5e3fa;font-weight:700;font-size:.91rem;margin:19px 0 8px}
.page input[type="text"],.page textarea{display:block;width:100%;border:1px solid #52698a;border-radius:10px;background:#09172a;color:#edf3ff;font:inherit;line-height:1.55;padding:13px 15px;resize:vertical}
.page input[type="text"]:focus-visible,.page textarea:focus-visible{outline:2px solid #8fb5ff;outline-offset:2px}
.page button.btn{border:0;cursor:pointer;font:inherit;font-weight:740}
.page button.btn-secondary{border:1px solid #496082;background:transparent;color:var(--text)}
.demo-result{background:#0b2034;border:1px solid #486384;border-radius:12px;padding:18px 20px;margin-top:24px}
.demo-result strong{display:block;color:#e6f3ff;font-size:1.13rem}
.demo-result p{margin:8px 0;color:#c8d6e9;overflow-wrap:anywhere}

/* Step 139: mobile-friendly offline preset selection and no-send workflow. */
.demo-presets{margin:28px 0 24px}
.demo-presets h2{font-size:1.5rem;margin:0 0 9px}
.demo-presets p{color:#bfcfe6}
.demo-preset-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:19px}
.demo-preset{display:flex;flex-direction:column;align-items:flex-start;gap:5px;text-align:left;font:inherit;color:var(--text);background:#14253b;border:1px solid #395575;border-radius:13px;padding:19px;cursor:pointer;transition:background .15s,border-color .15s}
.demo-preset strong{font-size:1.03rem}
.demo-preset span{font-size:.86rem;color:#b8cde7}
.demo-preset:hover{background:#1d3350;border-color:#8ab4f5}
.demo-preset:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
.demo-flow-title{margin-top:29px;font-size:1.04rem}
.demo-stages{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;padding:0;list-style:none}
.demo-stages li{background:#172740;border:1px solid #405878;border-radius:11px;padding:14px;color:#d7e6fc;font-size:.87rem;overflow-wrap:anywhere}
@media(max-width:640px){.demo-preset-grid{grid-template-columns:1fr}.demo-stages{grid-template-columns:1fr}}