:root{--b:#006AA7;--b2:#004b7a;--b3:#002a47;--y:#FECC02;--y2:#ffd93a;--ink:#0d1b2a;--mut:#4a5a6a;--bg:#f4f8fb;--line:#dbe5ee;--wa:#25D366;--r:18px;--sh:0 10px 30px rgba(0,42,71,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#fff}
img{max-width:100%;height:auto;display:block}a{color:var(--b)}a:hover{color:var(--b2)}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em;margin:0 0 .6em}h1{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:850}h2{font-size:clamp(1.55rem,3vw,2.25rem);font-weight:800}h3{font-size:1.2rem;font-weight:750}
p{margin:0 0 1em}.wrap{max-width:1180px;margin:0 auto;padding:0 20px}.prose{max-width:900px}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;z-index:99;background:#fff;padding:8px}
/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(0,42,71,.97);backdrop-filter:blur(8px);color:#fff;box-shadow:0 2px 14px rgba(0,0,0,.25)}
.bar{display:flex;align-items:center;gap:16px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;font-size:1.15rem;white-space:nowrap}.logo b{color:var(--y)}.logo svg{flex:none}
.dnav{margin-left:auto}.nav{list-style:none;display:flex;gap:4px;margin:0;padding:0}
.nav a{color:#e8f2fa;text-decoration:none;padding:8px 11px;border-radius:10px;font-weight:600;font-size:.95rem}.nav a:hover,.nav a[aria-current]{background:rgba(255,255,255,.12);color:var(--y)}
.langs{position:relative}.langs summary,.menu summary{list-style:none;cursor:pointer}.langs summary::-webkit-details-marker,.menu summary::-webkit-details-marker{display:none}
.langs summary{border:1px solid rgba(255,255,255,.35);border-radius:10px;padding:6px 10px;font-weight:700;font-size:.85rem}
.langs ul{position:absolute;right:0;top:120%;background:#fff;border-radius:12px;box-shadow:var(--sh);list-style:none;margin:0;padding:6px;min-width:150px}
.langs a{display:block;padding:8px 12px;color:var(--ink);text-decoration:none;border-radius:8px}.langs a:hover,.langs a[aria-current]{background:var(--bg)}
.menu{display:none}
@media(max-width:1020px){.dnav{display:none}.menu{display:block;margin-left:4px}.langs{margin-left:auto}
 .menu summary{width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;gap:5px;align-items:center;border-radius:10px;background:rgba(255,255,255,.1)}
 .menu summary span{width:22px;height:2px;background:#fff;display:block}
 .menu .nav{position:absolute;left:0;right:0;top:68px;flex-direction:column;background:var(--b3);padding:10px 16px 18px;box-shadow:var(--sh)}
 .menu .nav a{display:block;padding:12px}}
@media(max-width:520px){.logo span{font-size:1rem}.bar .btn-sm{display:none}}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:999px;background:var(--b);color:#fff;font-weight:800;text-decoration:none;border:2px solid transparent;transition:.15s;font-size:1rem}
.btn:hover{transform:translateY(-1px);background:var(--b2);color:#fff}.btn-y{background:var(--y);color:var(--b3)}.btn-y:hover{background:var(--y2);color:var(--b3)}
.btn-wa{background:var(--wa);color:#fff}.btn-wa:hover{background:#1fb457}.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:9px 16px;font-size:.9rem}.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
/* hero */
.hero,.phead{position:relative;color:#fff;background:radial-gradient(1200px 500px at 85% -10%,rgba(254,204,2,.28),transparent 60%),linear-gradient(135deg,var(--b) 0%,var(--b2) 55%,var(--b3) 100%);overflow:hidden}
.hero:after,.phead:after{content:"";position:absolute;inset:auto 0 0 0;height:8px;background:linear-gradient(90deg,var(--y) 0 30%,var(--b) 30% 36%,var(--y) 36%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:64px 20px 72px}
.phead .hero-grid{padding:40px 20px 52px}.phead h1{font-size:clamp(1.8rem,3.8vw,2.7rem)}
.hero .lead,.phead .lead{font-size:1.15rem;color:#e5f0f8;max-width:640px}
.hero-list{list-style:none;padding:0;margin:18px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}
.hero-list li{padding-left:30px;position:relative;font-weight:650}.hero-list li:before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--y);color:var(--b3);font-size:.8rem;display:grid;place-items:center;font-weight:900}
.hero-ph{border-radius:22px;box-shadow:0 25px 60px rgba(0,0,0,.35);border:4px solid rgba(255,255,255,.15);aspect-ratio:16/9;object-fit:cover;width:100%}
.byline{font-size:.9rem;color:#bcd6ea}.bc ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0 0 14px;font-size:.88rem}
.bc li+li:before{content:"›";margin-right:6px;color:var(--y)}.bc a{color:#d6e8f6}.bc [aria-current]{color:#fff;font-weight:700}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:28px;padding:40px 20px 52px}.hero-list{grid-template-columns:1fr}.hero-img{order:2}}
/* sections */
.sec{padding:56px 0}.sec:nth-of-type(even){background:var(--bg)}.sec-toc{padding:34px 0 0;background:#fff!important}
.prose h2{margin-top:.2em}.prose h3{margin-top:1.4em}.prose ul,.prose ol{padding-left:1.2em}
.note-box{background:#fff8d6;border-left:6px solid var(--y);padding:16px 20px;border-radius:12px}
.fig{margin:26px 0}.fig img{border-radius:var(--r);box-shadow:var(--sh);width:100%}.fig figcaption{font-size:.9rem;color:var(--mut);margin-top:8px}
.ticks{list-style:none;padding-left:0!important}.ticks li{position:relative;padding-left:30px;margin:7px 0}
.ticks li:before{content:"✓";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;background:var(--b);color:#fff;font-size:.75rem;display:grid;place-items:center;font-weight:900}
.steps{counter-reset:s;list-style:none;padding:0!important;display:grid;gap:14px}
.steps li{counter-increment:s;position:relative;padding:18px 18px 18px 74px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:0 4px 14px rgba(0,42,71,.06)}
.steps li:before{content:counter(s);position:absolute;left:18px;top:16px;width:40px;height:40px;border-radius:12px;background:var(--y);color:var(--b3);font-weight:900;display:grid;place-items:center;font-size:1.2rem}
/* pricing */
.pricing{padding:64px 0;background:linear-gradient(180deg,#eaf3fa,#fff)}.pricing h2{text-align:center}.pricing .lead{text-align:center;max-width:780px;margin:0 auto 34px;color:var(--mut)}
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.plan{position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px 22px 24px;display:flex;flex-direction:column;box-shadow:var(--sh)}
.plan-t{font-weight:800;font-size:1.15rem;margin:0 0 6px;color:var(--b2)}.price{font-size:2.6rem;font-weight:900;margin:0;color:var(--b3);letter-spacing:-.02em}
.pm{color:var(--mut);margin:0}.save{color:#0a7d3b;font-weight:750;margin:6px 0 10px}.save.muted{visibility:hidden}.plan .ticks{flex:1;font-size:.95rem}.plan .btn{margin-top:14px;width:100%}
.plan.best{background:linear-gradient(160deg,var(--b) 0%,var(--b3) 100%);color:#fff;border:3px solid var(--y);transform:scale(1.04);z-index:1}
.plan.best .plan-t,.plan.best .price{color:#fff}.plan.best .pm{color:#cfe3f3}.plan.best .save{color:var(--y)}.plan.best .ticks li:before{background:var(--y);color:var(--b3)}
.badge{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:var(--y);color:var(--b3);font-weight:900;font-size:.78rem;padding:7px 14px;border-radius:999px;white-space:nowrap;text-transform:uppercase;letter-spacing:.03em}
.badge.alt{background:var(--b);color:#fff}.note{text-align:center;color:var(--mut);font-size:.88rem;margin-top:26px}
@media(max-width:1020px){.plans{grid-template-columns:1fr 1fr}.plan.best{transform:none}}
@media(max-width:560px){.plans{grid-template-columns:1fr}.plan.best{order:-1}}
/* tiles, cards */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}.tile{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:0 4px 14px rgba(0,42,71,.06)}
.tile .ico{font-size:1.7rem;display:inline-grid;place-items:center;width:52px;height:52px;border-radius:14px;background:#e6f1f9;margin-bottom:8px}.tile h3{font-size:1.05rem;margin:.3em 0}.tile p{font-size:.94rem;color:var(--mut);margin:0}
.prose .tiles{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.tiles{grid-template-columns:1fr 1fr}}@media(max-width:560px){.tiles,.prose .tiles{grid-template-columns:1fr}}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin:20px 0}
.card{display:flex;flex-direction:column;gap:4px;padding:18px;border-radius:16px;background:#fff;border:1px solid var(--line);text-decoration:none;color:var(--ink);transition:.15s;box-shadow:0 3px 10px rgba(0,42,71,.05)}
.card:hover{border-color:var(--b);transform:translateY(-2px);box-shadow:var(--sh)}.card strong{color:var(--b2)}.card span{font-size:.9rem;color:var(--mut)}
.logo-band{background:linear-gradient(135deg,var(--b3),var(--b2));border-radius:22px;padding:26px;margin:22px 0}
.logos{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:22px 34px;justify-content:center;align-items:center}.logos img{height:34px;width:auto;opacity:.92}
/* table */
.tbl{overflow-x:auto;margin:22px 0;border-radius:var(--r);box-shadow:var(--sh)}table{border-collapse:collapse;width:100%;background:#fff;min-width:620px}
th,td{padding:13px 15px;text-align:left;border-bottom:1px solid var(--line);font-size:.95rem;vertical-align:top}thead th{background:var(--b3);color:#fff}
thead th:nth-child(2){background:var(--b);color:var(--y)}tbody td:nth-child(2){background:#fffbe6;font-weight:700}tbody th{font-weight:700;color:var(--b2)}
/* toc, faq, cta, author, related */
.toc{background:var(--bg);border:1px solid var(--line);border-left:6px solid var(--b);border-radius:14px;padding:18px 22px}.toc-t{font-weight:800;margin:0 0 6px}.toc ol{margin:0;padding-left:1.2em;columns:2;column-gap:30px}.toc li{margin:4px 0;break-inside:avoid}
@media(max-width:700px){.toc ol{columns:1}}
.qa{background:#fff;border:1px solid var(--line);border-radius:14px;margin:10px 0;box-shadow:0 2px 8px rgba(0,42,71,.05)}.qa summary{cursor:pointer;padding:16px 50px 16px 18px;position:relative;list-style:none}
.qa summary::-webkit-details-marker{display:none}.qa summary h3{margin:0;font-size:1.05rem}.qa summary:after{content:"+";position:absolute;right:18px;top:12px;font-size:1.6rem;color:var(--b);font-weight:700}
.qa[open] summary:after{content:"–"}.qa div{padding:0 18px 6px}
.cta{background:linear-gradient(135deg,var(--b) 0%,var(--b3) 100%);color:#fff;border-radius:24px;padding:40px;text-align:center;box-shadow:var(--sh);position:relative;overflow:hidden}
.cta:before{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(254,204,2,.25)}.cta .btns{justify-content:center}.cta p{color:#dcebf7;max-width:700px;margin:0 auto}
.author{display:flex;gap:16px;align-items:flex-start;background:var(--bg);border-radius:16px;padding:20px;border:1px solid var(--line)}.author-t{font-weight:800;margin:0 0 4px}.author p{margin:0;font-size:.95rem}
.related h2{font-size:1.4rem}
/* footer */
.foot{background:var(--b3);color:#c9dcea;padding:56px 0 110px;margin-top:0;font-size:.95rem}.foot a{color:#fff;text-decoration:none}.foot a:hover{color:var(--y)}
.fcols{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.fcols h2{font-size:1rem;color:var(--y);text-transform:uppercase;letter-spacing:.05em}.fcols ul{list-style:none;padding:0;margin:0}.fcols li{margin:6px 0}
.co{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;font-size:.88rem}
@media(max-width:800px){.fcols{grid-template-columns:1fr 1fr}}
.mbar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;gap:10px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(0,42,71,.97);box-shadow:0 -4px 18px rgba(0,0,0,.25)}
.mbar .btn{flex:1;padding:13px 10px}
@media(max-width:760px){.mbar{display:flex}.wa-float{display:none!important}}
.wa-float{position:fixed;right:22px;bottom:22px;z-index:60;width:62px;height:62px;border-radius:50%;background:var(--wa);display:grid;place-items:center;box-shadow:0 10px 25px rgba(0,0,0,.25)}
.e404{text-align:center;padding:80px 20px}
.credit{font-size:.75rem;color:#bcd6ea;margin:8px 0 0}.credit a{color:#d6e8f6}