:root{--bg:#07131e;--panel:#0d2232;--panel2:#102b3e;--text:#edf7fc;--muted:#a6c1ce;--ice:#7ee7f2;--blue:#298bd1;--line:rgba(160,220,236,.18);--orange:#ffbf69}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#f4f8fa;color:#142734;font:16px/1.55 Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit}.wrap{width:min(1120px,calc(100% - 40px));margin:auto}.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 78% 10%,#16496b 0,#0b2539 34%,var(--bg) 72%);color:var(--text);min-height:430px}.hero:after{content:"";position:absolute;inset:auto 0 0;height:120px;background:linear-gradient(180deg,transparent,#07131e)}.hero-inner{position:relative;z-index:1;padding:74px 0 55px}.eyebrow,.kicker{color:var(--ice);text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:800}.hero h1{font-size:clamp(48px,9vw,96px);line-height:.96;margin:20px 0;font-weight:900;letter-spacing:-.055em}.hero h1 span{color:var(--ice)}.lead{max-width:650px;color:#c9e0e8;font-size:20px}.updated{font-size:12px;color:#83a3b2;margin-top:28px}.snow{position:absolute;color:#b8f7ff;opacity:.5}.snow-a{font-size:90px;right:18%;top:25px}.snow-b{font-size:180px;right:4%;bottom:20px;opacity:.08}.snow-c{font-size:65px;left:52%;top:180px}.hero-actions{display:flex;gap:12px;margin-top:28px}.button{border:0;border-radius:10px;padding:12px 18px;font-weight:800;text-decoration:none;cursor:pointer;font-size:14px}.primary{background:var(--ice);color:#06202b}.ghost{background:transparent;color:white;border:1px solid #6094a9}.nav{background:#07131e;color:#b8d8e1;border-top:1px solid var(--line);position:sticky;top:0;z-index:5}.nav-inner{display:flex;gap:25px;overflow:auto}.nav a{padding:15px 0;text-decoration:none;font-size:14px;white-space:nowrap}.nav a:hover{color:var(--ice)}.section{padding:76px 0}.intro-grid,.split{display:grid;grid-template-columns:1.4fr .8fr;gap:60px;align-items:center}.section h2{font-size:clamp(28px,4vw,44px);line-height:1.08;margin:10px 0 20px;letter-spacing:-.035em}.section p{color:#526b78}.callout,.warning{background:var(--panel);color:var(--text);border-radius:18px;padding:28px;box-shadow:0 18px 40px #08243522}.callout p,.warning p{color:#b9d1db}.tag{display:inline-block;border:1px solid #3b758a;color:var(--ice);padding:5px 9px;border-radius:99px;font-size:12px}.cards{display:grid;gap:16px}.four{grid-template-columns:repeat(4,1fr)}.card{background:white;border:1px solid #dbe8ed;border-radius:16px;padding:22px;box-shadow:0 8px 24px #1938490c}.card h3{margin:14px 0 8px}.card p{font-size:14px}.icon{width:40px;height:40px;border-radius:12px;background:#e1f7fa;color:#087e96;display:grid;place-items:center;font-size:22px}.dark-panel{background:var(--bg);color:var(--text);padding:50px clamp(22px,5vw,68px);border-radius:24px}.dark-panel h2{margin-bottom:0}.dark-panel .kicker{margin:0}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:28px}.reset{color:#a8d8e7;background:none;border:1px solid #416b7a;border-radius:8px;padding:8px 12px;cursor:pointer}.timeline{display:grid;gap:10px}.step{display:grid;grid-template-columns:auto 48px 1fr;gap:16px;align-items:center;padding:16px;border:1px solid var(--line);border-radius:12px;cursor:pointer}.step input{accent-color:var(--ice);width:18px;height:18px}.step .num{color:var(--ice);font-weight:900}.step b{display:block}.step small{display:block;color:#9dbbc6;margin-top:3px}.step:has(input:checked){background:#123344}.step:has(input:checked) b{text-decoration:line-through;color:#8ca6af}.role-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.role{border-left:3px solid var(--blue);padding:3px 0 3px 18px}.role p{font-size:14px;margin-top:8px}.clean{padding-left:22px;color:#526b78}.clean li{margin:10px 0}.warning{background:#fff4df;border:1px solid #f4d89f;color:#604622;box-shadow:none}.warning p{color:#725a3e}.table-wrap{overflow:auto}.table-wrap table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden}.table-wrap th,.table-wrap td{text-align:left;padding:15px 17px;border-bottom:1px solid #e2ecef}.table-wrap th{background:#dff5f8;color:#155b6b;font-size:13px}.table-wrap td{font-size:14px}.mistakes{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.mistakes details{background:white;border:1px solid #dbe8ed;border-radius:12px;padding:16px 18px}.mistakes summary{font-weight:800;cursor:pointer}.mistakes p{font-size:14px;margin:12px 0 0}.sources{border-top:1px solid #dbe8ed;padding-top:36px}.sources p{font-size:13px}.source-links{display:flex;gap:20px;flex-wrap:wrap}.source-links a{color:#116f85;font-weight:700}footer{background:var(--bg);color:#86aab8;padding:24px 0;font-size:12px}footer .wrap{display:flex;justify-content:space-between;gap:20px}
@media(max-width:800px){.wrap{width:min(100% - 28px,650px)}.hero{min-height:440px}.hero-inner{padding:56px 0 50px}.lead{font-size:17px}.four,.role-grid{grid-template-columns:repeat(2,1fr)}.intro-grid,.split{grid-template-columns:1fr;gap:28px}.section{padding:54px 0}.dark-panel{padding:36px 18px}.mistakes{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column;gap:12px}.snow-a{right:8%;top:28px;font-size:68px}.snow-c{left:auto;right:30%;top:240px}}
@media(max-width:480px){.four,.role-grid{grid-template-columns:1fr}.hero h1{font-size:58px}.hero-actions{flex-wrap:wrap}.step{grid-template-columns:auto 34px 1fr;gap:9px;padding:13px}.step small{font-size:12px}.nav-inner{gap:18px}footer .wrap{flex-direction:column;gap:5px}}
.section-note{max-width:850px}.formation-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}.formation-card{background:#fff;border:1px solid #dbe8ed;border-top:4px solid var(--blue);border-radius:16px;padding:22px;box-shadow:0 8px 24px #1938490c}.formation-card.defense{border-top-color:#38a987}.formation-card.joiner{border-top-color:var(--orange)}.formation-label{font-size:12px;font-weight:900;letter-spacing:.04em;text-transform:uppercase;color:#527180}.formation-card h3{font-size:20px;margin:12px 0}.formation-card p{font-size:14px}.ratio{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin:8px 0!important;color:#126e83!important}.ratio strong{font-size:25px;letter-spacing:.04em}.ratio span{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:#76909b}.alt{border-top:1px solid #e2ecef;padding-top:12px}.ratio-box{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;background:#eaf8fa;border-radius:14px;margin-top:18px;padding:18px}.ratio-box div{display:flex;flex-direction:column;gap:3px}.ratio-box b{font-size:21px;color:#126e83}.ratio-box span{font-size:12px;color:#587582}.priority{display:flex;gap:12px;align-items:baseline;background:var(--panel);color:#d9f4f7;border-radius:14px;padding:17px 20px;margin-top:14px}.priority b{white-space:nowrap;color:var(--ice)}.priority span{font-size:14px}.priority em{font-style:normal;color:var(--orange);font-weight:800}
@media(max-width:800px){.formation-grid{grid-template-columns:1fr}.ratio-box{grid-template-columns:1fr 1fr}.priority{flex-direction:column;gap:5px}}
@media(max-width:480px){.ratio-box{grid-template-columns:1fr}.priority span{font-size:13px}}
@media print{.nav,.hero-actions,.reset{display:none}.hero{min-height:auto}.hero-inner{padding:25px 0}.section{padding:25px 0}.dark-panel{color:#111;background:#eef8fa;break-inside:avoid}.step{border-color:#bbb}.sources a{color:#111}}