:root{--navy:#101D36;--navy-2:#16284a;--blue:#3478F6;--blue-d:#2462d8;--cyan:#36C5E8;--bg:#F1F5F9;--white:#fff;--text:#334155;--muted:#64748B;--line:#E2E8F0;--radius:16px;--shadow:0 1px 2px rgba(16,29,54,.04),0 8px 24px rgba(16,29,54,.06);--shadow-lg:0 24px 60px rgba(16,29,54,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.65;font-size:16px}
img,svg{max-width:100%;display:block}a{color:var(--blue);text-decoration:none}a:hover{color:var(--blue-d)}
h1,h2,h3,h4{color:var(--navy);line-height:1.2;margin:0 0 .6em;letter-spacing:-.02em}
h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:800}h2{font-size:clamp(1.7rem,3.4vw,2.5rem);font-weight:750}h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em}.lead{font-size:1.15rem;color:var(--muted);max-width:680px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}.narrow{max-width:860px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:100;background:#fff;padding:8px 14px;border-radius:8px}
:focus-visible{outline:3px solid var(--cyan);outline-offset:2px;border-radius:6px}
.ic{width:24px;height:24px}.ic-sm{width:18px;height:18px}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;color:var(--navy)}.brand b{color:var(--blue);margin-left:2px}.brand.light{color:#fff}.brand.light b{color:var(--cyan)}
.site-nav{display:flex;align-items:center;gap:24px}.site-nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.site-nav ul a{display:block;padding:8px 12px;border-radius:8px;color:var(--text);font-weight:500;font-size:.95rem}
.site-nav ul a:hover,.site-nav ul a.active{color:var(--navy);background:var(--bg)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px;color:var(--navy);cursor:pointer}
@media(max-width:980px){.nav-toggle{display:block}.site-nav{position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px 24px 24px;gap:12px;display:none;box-shadow:var(--shadow)}.site-nav.open{display:flex}.site-nav ul{flex-direction:column}.site-nav ul a{padding:12px}}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:12px;font-weight:600;font-size:1rem;border:1px solid transparent;cursor:pointer;transition:all .2s;font-family:inherit;line-height:1.2}
.btn-sm{padding:10px 16px;font-size:.92rem}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(52,120,246,.28)}.btn-primary:hover{background:var(--blue-d);color:#fff;transform:translateY(-1px)}
.btn-outline{border-color:var(--line);color:var(--navy);background:#fff}.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-light{background:#fff;color:var(--navy)}.btn-light:hover{color:var(--blue)}
.btn-ghost-light{border-color:rgba(255,255,255,.3);color:#fff}.btn-ghost-light:hover{background:rgba(255,255,255,.08);color:#fff}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn-row.center{justify-content:center}
/* sections */
.section{padding:96px 0}.section.alt{background:var(--bg)}.section.tight{padding:64px 0}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}.section-head p{color:var(--muted);font-size:1.08rem}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
.grid{display:grid;gap:24px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}.section{padding:72px 0}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s;display:flex;flex-direction:column}
a.card{color:inherit}a.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#cbd8f0}
.card p{color:var(--muted);margin-bottom:0}.card .more{margin-top:auto;padding-top:18px;color:var(--blue);font-weight:600;display:flex;align-items:center;gap:6px}
.icon-box{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(52,120,246,.12),rgba(54,197,232,.14));color:var(--blue);margin-bottom:18px}
.tag{display:inline-block;font-size:.75rem;font-weight:600;padding:3px 10px;border-radius:99px;background:var(--bg);color:var(--muted);border:1px solid var(--line)}
.tag.ok{background:#e9f9f1;color:#167a4a;border-color:#c6efd9}.tag.plan{background:#fff6e5;color:#9a6100;border-color:#f6e1b5}
.checklist{list-style:none;padding:0;margin:0}.checklist li{display:flex;gap:10px;padding:6px 0}.checklist .ic-sm{color:var(--blue);flex:none;margin-top:4px}
/* hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 500px at 85% -10%,rgba(54,197,232,.16),transparent 60%),radial-gradient(900px 500px at 0% 0%,rgba(52,120,246,.10),transparent 60%),#fff;padding:88px 0 96px}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}.hero .chips span{font-size:.85rem;padding:6px 12px;border:1px solid var(--line);border-radius:99px;background:#fff;color:var(--muted)}
@media(max-width:980px){.hero-grid{grid-template-columns:1fr}}
/* dashboard mockup */
.dash{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-lg);overflow:hidden;font-size:.82rem}
.dash-top{display:flex;align-items:center;gap:6px;padding:12px 16px;border-bottom:1px solid var(--line);background:#fafcff}.dash-top i{width:10px;height:10px;border-radius:50%;background:#e2e8f0}.dash-top span{margin-left:10px;color:var(--muted);font-weight:600}
.dash-body{display:grid;grid-template-columns:120px 1fr}.dash-side{background:var(--navy);color:#9fb0cc;padding:16px 12px}.dash-side div{padding:7px 10px;border-radius:8px;margin-bottom:4px}.dash-side .on{background:rgba(52,120,246,.25);color:#fff}
.dash-main{padding:16px;display:grid;gap:12px}.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kpi{border:1px solid var(--line);border-radius:12px;padding:10px 12px}.kpi small{color:var(--muted);display:block}.kpi b{font-size:1.05rem;color:var(--navy)}
.chart{border:1px solid var(--line);border-radius:12px;padding:12px}.chart svg{width:100%;height:90px}
.rows{border:1px solid var(--line);border-radius:12px;overflow:hidden}.rows div{display:grid;grid-template-columns:1.2fr 1fr .9fr;padding:8px 12px;border-top:1px solid var(--line);align-items:center}.rows div:first-child{border-top:0;background:#fafcff;color:var(--muted);font-weight:600}
.st{font-size:.72rem;padding:2px 8px;border-radius:99px;font-weight:600;justify-self:start}.st.a{background:#e7f0ff;color:var(--blue)}.st.b{background:#e3f8fc;color:#0f8aa8}.st.c{background:#e9f9f1;color:#167a4a}
.dash-note{font-size:.78rem;color:var(--muted);text-align:center;margin-top:12px}
@media(max-width:520px){.dash-body{grid-template-columns:1fr}.dash-side{display:none}}
/* steps */
.steps{counter-reset:s}.step{position:relative;padding:28px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
.step .num{font-weight:800;font-size:.9rem;color:var(--blue);background:rgba(52,120,246,.1);width:40px;height:40px;border-radius:10px;display:grid;place-items:center;margin-bottom:16px}
/* dark band */
.band{background:var(--navy);color:#cbd5e1;position:relative;overflow:hidden}.band h2,.band h3{color:#fff}.band .eyebrow{color:var(--cyan)}
.band .card{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.1);box-shadow:none}.band .card p{color:#9fb0cc}.band .icon-box{background:rgba(54,197,232,.12);color:var(--cyan)}
/* faq */
.faq{max-width:820px;margin:0 auto}.faq details{border:1px solid var(--line);border-radius:14px;padding:4px 22px;margin-bottom:12px;background:#fff}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--blue)}.faq details[open] summary::after{content:"–"}.faq details p{color:var(--muted)}
/* cta */
.cta-box{background:linear-gradient(135deg,var(--navy) 0%,#183063 100%);border-radius:24px;padding:56px;color:#cbd5e1;display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-box::after{content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(54,197,232,.35),transparent 70%)}
.cta-box h2{color:#fff;margin-bottom:.3em}.cta-box p{margin:0;max-width:560px}.cta-box .btn-row{margin:0;position:relative;z-index:1}
@media(max-width:640px){.cta-box{padding:36px 24px}}
/* page hero */
.page-hero{padding:88px 0 72px;text-align:center;background:radial-gradient(900px 400px at 50% -20%,rgba(52,120,246,.12),transparent 70%),var(--bg);border-bottom:1px solid var(--line)}.page-hero .lead{margin:0 auto}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}@media(max-width:860px){.split{grid-template-columns:1fr}}
.prose{max-width:820px;margin:0 auto}.prose h2{font-size:1.5rem;margin-top:2em}.prose h3{margin-top:1.5em}.prose ul{padding-left:1.2em}.prose li{margin-bottom:.4em}
.notice{border-left:4px solid var(--cyan);background:#effafd;padding:16px 20px;border-radius:10px;color:var(--text);font-size:.95rem}
.notice.warn{border-color:#f0b54a;background:#fff8ea}
/* forms */
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:36px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form-grid .full{grid-column:1/-1}@media(max-width:640px){.form-grid{grid-template-columns:1fr}.form-card{padding:24px}}
.field label{display:block;font-weight:600;font-size:.9rem;color:var(--navy);margin-bottom:6px}.field label .req{color:#d14343}
.field input,.field select,.field textarea{width:100%;font:inherit;padding:12px 14px;border:1px solid #cfd8e3;border-radius:10px;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s}
.field textarea{min-height:130px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(52,120,246,.15)}
.field .err{color:#c23a3a;font-size:.83rem;margin-top:4px;min-height:0}.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#e07070}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.92rem}.check input{width:18px;height:18px;margin-top:3px;flex:none}
.hp{position:absolute!important;left:-10000px!important;width:1px;height:1px;overflow:hidden}
.form-status{margin-top:18px;padding:14px 16px;border-radius:10px;display:none}.form-status.ok{display:block;background:#e9f9f1;color:#167a4a}.form-status.bad{display:block;background:#fdecec;color:#a12f2f}
/* footer */
.site-footer{background:var(--navy);color:#9fb0cc;padding:72px 0 0;font-size:.95rem}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}.site-footer h3{color:#fff;font-size:.95rem;margin-bottom:14px}
.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin-bottom:10px}.site-footer a{color:#9fb0cc}.site-footer a:hover{color:#fff}
.footer-brand p{margin-top:16px;max-width:320px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:56px;padding:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.85rem}.footer-bottom p{margin:0}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}.reveal.in{opacity:1;transform:none}
.flow line,.flow path.dash-line{stroke-dasharray:6 6;animation:flow 1.6s linear infinite}@keyframes flow{to{stroke-dashoffset:-24}}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.flow line,.flow path.dash-line{animation:none}html{scroll-behavior:auto}}
.no-js .reveal{opacity:1;transform:none}
.article-meta{color:var(--muted);font-size:.9rem;margin-bottom:8px}
.err-page{text-align:center;padding:120px 0}.err-page .code{font-size:6rem;font-weight:800;color:var(--blue);line-height:1}
.footer-email{display:flex;align-items:center;gap:8px}.footer-email .ic-sm{color:var(--cyan)}