:root {
  --navy: #010F31; --blue: #2F6BFF; --blue-2: #1F55E0; --green: #10B981;
  --ink: #0B1220; --text: #3D4659; --muted: #6B7488; --line: #E3E8F2; --bg: #F5F7FB;
  --radius: 14px; --shadow: 0 18px 40px -18px rgba(1, 15, 49, .28);
  --font-head: 'Montserrat', system-ui, sans-serif;
  --font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { font-family: var(--font); color: var(--text); background: #fff; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4 { font-family: var(--font-head); color: var(--ink); line-height: 1.15; letter-spacing: -.02em; }
.icon { width: 22px; height: 22px; flex-shrink: 0; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .5rem; font: 600 .95rem var(--font); padding: .75rem 1.3rem;
       border-radius: 10px; border: 1px solid transparent; cursor: pointer; white-space: nowrap;
       transition: background .2s, transform .2s, box-shadow .2s, border-color .2s; }
.btn .icon { width: 18px; height: 18px; }
.btn-lg { padding: .95rem 1.6rem; font-size: 1rem; }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 10px 24px -10px rgba(47,107,255,.8); }
.btn-primary:hover { background: var(--blue-2); transform: translateY(-1px); }
.btn-ghost { color: #fff; border-color: rgba(255,255,255,.25); }
.btn-ghost:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.4); }
.btn-white { background: #fff; color: var(--navy); }
.btn-white:hover { transform: translateY(-1px); box-shadow: 0 12px 28px -10px rgba(0,0,0,.5); }

/* Header */
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; background: var(--navy); border-bottom: 1px solid transparent; transition: box-shadow .2s, border-color .2s; }
.site-header.scrolled { border-color: rgba(255,255,255,.08); box-shadow: 0 10px 30px -14px rgba(0,0,0,.6); }
.nav-inner { height: 72px; display: flex; align-items: center; justify-content: space-between; }
.logo img { height: 34px; width: auto; }
.nav-menu { display: flex; align-items: center; gap: 2rem; }
.nav-menu > a { color: rgba(255,255,255,.72); font-weight: 500; font-size: .95rem; transition: color .2s; }
.nav-menu > a:hover { color: #fff; }
.nav-cta { display: flex; align-items: center; gap: 1.2rem; margin-left: .5rem; }
.nav-login { color: #fff; font-weight: 600; font-size: .95rem; }
.nav-login:hover { opacity: .8; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero { position: relative; background: var(--navy); color: #fff; padding: 160px 0 120px; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse at 70% 35%, #000 15%, transparent 70%);
          mask-image: radial-gradient(ellipse at 70% 35%, #000 15%, transparent 70%); }
.hero::after { content: ""; position: absolute; width: 900px; height: 900px; right: -250px; top: -350px;
  background: radial-gradient(circle, rgba(47,107,255,.32), transparent 62%); pointer-events: none; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: .55rem; padding: .4rem .95rem; border-radius: 999px;
  border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.04); font-size: .85rem; color: rgba(255,255,255,.85); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #34D399; box-shadow: 0 0 0 4px rgba(52,211,153,.2); }
.hero h1 { color: #fff; font-size: clamp(2.3rem, 4.6vw, 3.6rem); font-weight: 800; margin: 1.3rem 0 1.2rem; }
.accent { background: linear-gradient(90deg, #7FA6FF, #C3D4FF); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.15rem; color: rgba(255,255,255,.74); max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin: 2.2rem 0 1.8rem; }
.hero-points { list-style: none; display: flex; flex-wrap: wrap; gap: .6rem 1.6rem; font-size: .92rem; color: rgba(255,255,255,.75); }
.hero-points li { display: flex; align-items: center; gap: .45rem; }
.hero-points .icon { width: 18px; height: 18px; color: #34D399; }

/* Document mockup */
.hero-visual { position: relative; perspective: 1400px; }
.doc { background: #fff; color: var(--ink); border-radius: 12px; padding: 22px; font-size: 11px; max-width: 480px; margin-left: auto;
  box-shadow: 0 40px 80px -20px rgba(0,0,0,.65), 0 0 0 1px rgba(255,255,255,.08); transform: rotateY(-9deg) rotateX(4deg); }
.doc-head { display: flex; justify-content: space-between; align-items: flex-start; border-bottom: 2px solid var(--ink); padding-bottom: 10px; margin-bottom: 12px; }
.doc-title { font-family: var(--font-head); font-weight: 800; font-size: 16px; letter-spacing: .02em; }
.doc-sub { color: var(--muted); font-size: 9.5px; }
.doc-meta { text-align: right; }
.doc-meta span, .doc-row span { display: block; font-size: 8.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.doc-meta strong { font-size: 12px; }
.doc-row { display: grid; gap: 8px; margin-bottom: 10px; }
.doc-row.three { grid-template-columns: repeat(3, 1fr); }
.doc-row.two { grid-template-columns: repeat(2, 1fr); }
.doc-row > div { border: 1px solid var(--line); border-radius: 6px; padding: 7px 9px; }
.doc-row strong { font-size: 11.5px; }
.doc-row p { margin-top: 2px; line-height: 1.4; color: var(--text); }
.doc-table { width: 100%; border-collapse: collapse; margin: 4px 0 16px; }
.doc-table th { background: var(--navy); color: #fff; text-align: left; font-size: 8.5px; text-transform: uppercase; letter-spacing: .05em; padding: 6px 7px; }
.doc-table td { padding: 6px 7px; border-bottom: 1px solid var(--line); }
.doc-table tbody tr:nth-child(even) { background: #F7F9FC; }
.doc-table tfoot td { font-weight: 700; background: #EEF2F8; border: 0; }
.doc-table .num { text-align: right; }
.doc-sigs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; font-size: 8.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.doc-sigs span { display: block; height: 22px; border-bottom: 1px solid var(--ink); margin-bottom: 4px; }

.chip { position: absolute; display: flex; align-items: center; gap: .7rem; background: #fff; color: var(--ink); padding: .7rem 1rem;
  border-radius: 12px; box-shadow: 0 22px 44px -14px rgba(0,0,0,.5); animation: float 6s ease-in-out infinite; }
.chip strong { display: block; font-size: .85rem; line-height: 1.3; }
.chip span { color: var(--muted); font-size: .78rem; }
.chip .icon-wrap { width: 36px; height: 36px; border-radius: 9px; display: grid; place-items: center; background: #EAF0FF; color: var(--blue); }
.chip .icon { width: 18px; height: 18px; }
.chip-link { right: -12px; top: -26px; animation-delay: -3s; }
.chip-link .icon-wrap { background: #E7F8F0; color: var(--green); }
.chip-pdf { left: -28px; bottom: 56px; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* Strip */
.strip { border-bottom: 1px solid var(--line); }
.strip-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem 2rem; padding-top: 28px; padding-bottom: 28px; }
.strip-title { font-weight: 600; color: var(--ink); }
.strip-list { list-style: none; display: flex; flex-wrap: wrap; gap: .6rem 1.8rem; color: var(--muted); font-size: .93rem; }
.strip-list li { display: flex; align-items: center; gap: .45rem; }
.strip-list .icon { width: 17px; height: 17px; color: var(--blue); }

/* Sections */
.section { padding: 110px 0; }
.section.alt { background: var(--bg); }
.section-head { text-align: center; max-width: 690px; margin: 0 auto 60px; }
.kicker { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--blue); margin-bottom: .9rem; }
.section-head h2, .split h2 { font-size: clamp(1.9rem, 3.2vw, 2.6rem); font-weight: 800; margin-bottom: 1rem; }
.section-head p { font-size: 1.08rem; color: var(--muted); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; transition: transform .25s, box-shadow .25s, border-color .25s; }
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #D2DBEE; }
.feature-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--navy); color: #fff; display: grid; place-items: center; margin-bottom: 1.2rem; }
.feature h3 { font-size: 1.12rem; margin-bottom: .5rem; }
.feature p { color: var(--muted); font-size: .96rem; }

.steps { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.steps::before { content: ""; position: absolute; top: 28px; left: 17%; right: 17%; height: 2px;
  background: repeating-linear-gradient(90deg, #C5D1EA 0 8px, transparent 8px 16px); }
.step { position: relative; text-align: center; }
.step-num { width: 56px; height: 56px; margin: 0 auto 1.4rem; border-radius: 50%; display: grid; place-items: center;
  background: var(--navy); color: #fff; font: 800 1.2rem var(--font-head); box-shadow: 0 0 0 8px var(--bg); }
.step h3 { font-size: 1.15rem; margin-bottom: .5rem; }
.step p { color: var(--muted); max-width: 320px; margin: 0 auto; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.lead-dark { color: var(--muted); font-size: 1.08rem; margin-bottom: 1.6rem; }
.checklist { list-style: none; display: grid; gap: .9rem; }
.checklist li { display: flex; gap: .75rem; align-items: flex-start; }
.checklist .icon { color: var(--green); margin-top: 2px; }
.checklist strong { color: var(--ink); }
.share-mock { position: relative; overflow: hidden; background: var(--navy); border-radius: 22px; padding: 56px 40px; }
.share-mock::before { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 40px 40px; }
.share-mock::after { content: ""; position: absolute; width: 500px; height: 500px; left: -150px; bottom: -280px;
  background: radial-gradient(circle, rgba(47,107,255,.35), transparent 65%); }
.share-card { position: relative; z-index: 1; background: #fff; border-radius: 14px; padding: 26px; box-shadow: 0 30px 60px -20px rgba(0,0,0,.6); }
.share-card h4 { font-size: 1.05rem; margin-bottom: .3rem; }
.muted-sm { font-size: .87rem; color: var(--muted); margin-bottom: 1.1rem; }
.share-input { display: flex; gap: .5rem; }
.share-input input { flex: 1; min-width: 0; padding: .7rem .9rem; border: 1px solid var(--line); border-radius: 9px; background: var(--bg); font: .88rem var(--font); color: var(--ink); }
.share-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .8rem; margin-top: 1.1rem; padding-top: 1.1rem; border-top: 1px solid var(--line); font-size: .84rem; color: var(--muted); }
.share-meta span { display: flex; align-items: center; gap: .4rem; }
.share-meta .icon { width: 16px; height: 16px; }

.who { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.who-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.icon-badge { width: 46px; height: 46px; border-radius: 12px; background: #EAF0FF; color: var(--blue); display: grid; place-items: center; margin-bottom: 1rem; }
.who-card h3 { font-size: 1.05rem; margin-bottom: .45rem; }
.who-card p { color: var(--muted); font-size: .94rem; }

.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 0 24px; transition: border-color .2s; }
.faq details[open] { border-color: #C9D5EE; }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 20px 0; font-weight: 600; color: var(--ink); font-size: 1.02rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.5rem; line-height: 1; color: var(--blue); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: 20px; color: var(--muted); }

.cta { padding-bottom: 110px; }
.cta-box { position: relative; overflow: hidden; text-align: center; background: var(--navy); color: #fff; border-radius: 24px; padding: 76px 48px; }
.cta-box::before { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%); mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%); }
.cta-box::after { content: ""; position: absolute; width: 700px; height: 700px; left: 50%; top: -420px; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(47,107,255,.4), transparent 65%); }
.cta-box > * { position: relative; z-index: 1; }
.cta-box h2 { color: #fff; font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800; margin-bottom: 1rem; }
.cta-box p { color: rgba(255,255,255,.75); font-size: 1.1rem; margin-bottom: 2rem; }

.site-footer { background: var(--navy); color: rgba(255,255,255,.62); padding: 72px 0 32px; font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand img { height: 32px; width: auto; margin-bottom: 1.1rem; }
.footer-brand p { max-width: 320px; }
.footer-col h4 { font: 600 .8rem var(--font); color: #fff; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 1.1rem; }
.footer-col a { display: block; margin-bottom: .65rem; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: .86rem; }

.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in { opacity: 1; transform: none; }

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 80px; }
  .hero-copy { text-align: center; }
  .lead { margin: 0 auto; }
  .hero-actions, .hero-points { justify-content: center; }
  .doc { margin: 0 auto; transform: none; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .who { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-menu { position: fixed; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--navy); padding: 8px 24px 24px; border-top: 1px solid rgba(255,255,255,.08); box-shadow: 0 20px 40px -20px rgba(0,0,0,.6);
    opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .2s, visibility .2s; }
  .nav-menu.open { opacity: 1; visibility: visible; transform: none; }
  .nav-menu > a { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav-cta { flex-direction: column; align-items: stretch; margin: 18px 0 0; gap: .8rem; }
  .nav-cta .btn { justify-content: center; }
  .nav-login { text-align: center; padding: 10px; }
  .steps { grid-template-columns: 1fr; gap: 48px; }
  .steps::before { display: none; }
}
@media (max-width: 640px) {
  .hero { padding: 124px 0 90px; }
  .section { padding: 80px 0; }
  .features, .who { grid-template-columns: 1fr; }
  .doc { padding: 16px; font-size: 10px; }
  .doc-row.three { grid-template-columns: 1fr 1fr; }
  .chip-link { right: 4px; top: -34px; }
  .chip-pdf { left: 4px; bottom: -28px; }
  .share-mock { padding: 36px 18px; }
  .cta-box { padding: 56px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ===== v1.4: theme toggle + dark mode (home page) ===== */
.theme-toggle { width: 38px; height: 38px; border-radius: 50%; border: 1px solid rgba(255,255,255,.22); background: transparent;
                color: #fff; display: inline-grid; place-items: center; cursor: pointer; padding: 0; transition: background .2s; flex-shrink: 0; }
.theme-toggle:hover { background: rgba(255,255,255,.1); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .i-sun { display: none; }
[data-theme="dark"] .theme-toggle .i-sun { display: block; }
[data-theme="dark"] .theme-toggle .i-moon { display: none; }
@media (max-width: 860px) { .nav-cta .theme-toggle { align-self: center; } }

[data-theme="dark"] { color-scheme: dark; --ink: #f3f4f6; --text: #cbd5e1; --muted: #94a3b8; --line: #1f2937; --bg: #0d1426; }
[data-theme="dark"] body { background: #0a0f1c; }
[data-theme="dark"] .feature, [data-theme="dark"] .who-card, [data-theme="dark"] .faq details,
[data-theme="dark"] .share-card { background: #111827; border-color: #1f2937; }
[data-theme="dark"] .feature:hover { border-color: #334155; }
[data-theme="dark"] .icon-badge { background: #172554; color: #93b4ff; }
[data-theme="dark"] .feature-icon { background: #1e3a8a; }
[data-theme="dark"] .step-num { box-shadow: 0 0 0 8px var(--bg); }
[data-theme="dark"] .steps::before { background: repeating-linear-gradient(90deg, #334155 0 8px, transparent 8px 16px); }
[data-theme="dark"] .share-input input { background: #0b1220; color: #f3f4f6; }
[data-theme="dark"] .cta-box { border: 1px solid #1f2937; }
/* Keep the document mockup and floating chips looking like paper */
[data-theme="dark"] .doc, [data-theme="dark"] .chip { --ink: #0B1220; --text: #3D4659; --muted: #6B7488; --line: #E3E8F2; }