:root{color-scheme:dark;--bg:#080e12;--panel:#101b22;--line:#23343d;--ink:#edf3f4;--muted:#9eb1ba;--green:#39e69d;--blue:#7bbdff;--gold:#e9bf76;--r:16px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 'Segoe UI',Arial,sans-serif}a{color:inherit;text-underline-offset:5px}button,input,textarea,select{font:inherit}button,a,input,textarea,select,summary{touch-action:manipulation}button,summary{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:5px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.13;letter-spacing:-.045em;font-weight:650}h1{font-size:clamp(38px,5vw,68px)}h2{font-size:clamp(28px,3.2vw,42px)}h3{font-size:23px}p{color:var(--muted)}small{font-size:13px;color:var(--muted)}.wrap{max-width:1280px;margin:auto;padding:0 40px}.header{height:86px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 max(40px,calc((100vw - 1200px)/2));border-bottom:1px solid var(--line);background:#080e12ed;position:sticky;top:0;z-index:20;backdrop-filter:blur(18px)}.header nav{display:flex;align-items:center;gap:26px}.header a{text-decoration:none;font-size:14px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.06em;line-height:1.2}.brand img{height:39px;width:39px;object-fit:contain}.brand small{display:block;letter-spacing:.24em;color:var(--green);font-size:11px;margin-top:5px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:22px;padding:16px 23px;border:1px solid transparent;border-radius:9px;background:var(--green);color:#042416;font-weight:650;line-height:1.4;text-decoration:none;min-height:48px;transition:transform .2s,background .2s}.btn:hover{background:#67eeb7;transform:translateY(-2px)}.btn.ghost{background:transparent;border-color:#37515e;color:var(--ink)}.btn.ghost:hover{background:#1a2b35}.btn.small{padding:10px 16px;font-size:14px}.wide{width:100%}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.15em;color:var(--green);line-height:1.5}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);margin-right:8px}.hero{display:grid;grid-template-columns:1.4fr 1fr;align-items:center;gap:65px;padding:88px 0 65px}.hero h1{font-size:clamp(36px,4.35vw,61px);max-width:660px;margin:24px 0;line-height:1.08}.hero h1 em{font-style:normal;color:var(--green)}.lead{font-size:19px;max-width:630px;line-height:1.6}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:20px;margin:30px 0 20px}.text-link{font-size:14px;text-decoration:none}.subtle{font-size:13px;line-height:1.6;color:var(--muted)}.hero-practice{border:1px solid 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.2s}.course-card:hover{transform:translateY(-4px);border-color:#496b63}.course-visual{height:158px;padding:21px;position:relative;display:flex;flex-direction:column;justify-content:space-between;color:#60e8b0;background:linear-gradient(120deg,#16352d,#102521)}.course-visual>span:first-child{font-size:12px;letter-spacing:.08em}.course-visual strong{font-size:23px;letter-spacing:-.025em;z-index:1}.course-visual .visual-number{position:absolute;right:16px;top:25px;font-size:96px;font-weight:800;line-height:1;color:#ffffff0b;letter-spacing:-.09em}.course-visual.ai{color:#9ccfff;background:linear-gradient(120deg,#1a304a,#131f32)}.course-visual.marketing{color:var(--gold);background:linear-gradient(120deg,#3e2f1d,#282017)}.course-body{padding:23px;display:flex;flex:1;flex-direction:column}.course-body h3{margin:20px 0 14px;font-size:23px;line-height:1.22;letter-spacing:-.025em}.course-body h3 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/* Academy 1.1: clearer controls, readable metadata, mobile navigation. */
.menu-toggle{display:none}.catalog-tools{display:grid;grid-template-columns:minmax(220px,1.5fr) minmax(160px,1fr) minmax(185px,1fr) auto;gap:16px;align-items:end;padding:24px;background:#101b22;border:1px solid var(--line);border-radius:14px;margin-top:28px}.catalog-tools label{margin:0;font-size:14px}.catalog-tools .btn{min-height:50px}.catalog-results{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px;font-size:14px}.catalog-results p{margin:0}.catalog-results a:not(.btn){color:var(--green)}.filter-count{display:inline-block;margin-left:7px;opacity:.8}.course-body>p{font-size:16px}.meta,.buy-row small,.demo-link,.breadcrumb,.stats span,.subtle,.link-btn{font-size:14px}.practice-message small,.brand small,.certificate-preview small,.achievement small,.recommend small{font-size:12px}.form-error{background:#382027;border-color:#a15766;color:#ffe6eb}.form-error:focus{outline:3px solid var(--gold);outline-offset:4px}.course-visual{height:142px}.course-visual.ai strong{letter-spacing:-.025em}.module summary::after{content:'+';color:var(--green);font-size:23px}.module[open] summary::after{content:'−'}.module summary::-webkit-details-marker{display:none}.dashboard-top+.filters{padding-bottom:12px;border-bottom:1px solid var(--line)}select:focus-visible{outline:3px solid var(--green);outline-offset:4px}.purchase-panel p{font-size:16px}.empty h3{line-height:1.25}.header nav>a{min-height:44px;display:inline-flex;align-items:center}
@media(max-width:1100px){.catalog-tools{grid-template-columns:1fr 1fr}.catalog-search{grid-column:1/-1}}
@media(max-width:800px){.b2c-nav-ready .menu-toggle{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 17px;border:1px solid #37515e;border-radius:9px;background:transparent;color:var(--ink)}.b2c-nav-ready .header{height:auto;min-height:78px;flex-wrap:wrap;padding:16px 20px;align-items:center;gap:12px}.b2c-nav-ready .header nav{display:none;width:100%;align-items:stretch;flex-direction:column;gap:4px}.b2c-nav-ready .header nav.is-open{display:flex}.b2c-nav-ready .header nav>a{font-size:16px;padding:12px 16px;min-height:48px;border-radius:9px}.header .brand{font-size:14px!important}.header .brand small{font-size:12px}.b2c-nav-ready .header nav>a:hover{background:#172b32}}
@media(max-width:600px){.catalog-tools{padding:20px;grid-template-columns:1fr;gap:18px}.catalog-search{grid-column:auto}.catalog-results{align-items:flex-start}.catalog-tools input,.catalog-tools select{min-height:48px;font-size:16px}.catalog-tools .btn{width:100%}.filters a{min-height:44px;font-size:14px}.hero h1{font-size:clamp(34px,8vw,42px)}.purchase-panel .price{font-size:36px}.stats span{font-size:14px}.module summary small{font-size:13px}.course-card .meta{font-size:14px}.checkout input{font-size:16px}.header .brand img{width:34px;height:34px}}

/* Theme-aware controls: avoid dark fields inheriting dark text from the light catalog. */
body textarea,body select{background:var(--panel);color:var(--ink);border-color:var(--muted)}
.header .btn.ghost,main .btn.ghost,.footer .btn.ghost{border-color:var(--muted)}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}
input:not([type=checkbox],[type=radio]):disabled,textarea:disabled,select:disabled{background:var(--bg);color:var(--muted);border-color:var(--muted);opacity:1;cursor:not-allowed}
button.btn:disabled,button.btn:disabled:hover,a.btn[aria-disabled=true]{background:var(--panel);color:var(--muted);border-color:var(--muted);opacity:1;cursor:not-allowed;transform:none}
input:autofill{color:var(--ink);background:var(--panel);caret-color:var(--ink)}
input:-webkit-autofill,input:-webkit-autofill:hover,input:-webkit-autofill:focus{-webkit-text-fill-color:var(--ink);box-shadow:0 0 0 1000px var(--panel) inset;caret-color:var(--ink)}
input:not([type=checkbox],[type=radio]):focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--green);outline-offset:3px;border-color:var(--green)}
.header .b2c-return{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 13px;border:1px solid var(--muted);border-radius:8px;background:var(--panel);color:var(--ink);font-size:13px;font-weight:650;line-height:1.3;white-space:nowrap}
.header .b2c-return:hover{border-color:var(--green);text-decoration:underline;text-underline-offset:4px}
.header .b2c-logout{margin:0;display:flex;align-items:center}.header .b2c-logout .btn{min-height:44px;margin:0;white-space:nowrap}
.header{height:auto;min-height:86px;gap:18px;padding-block:14px}.header .brand{flex-shrink:0}.header nav{gap:18px}
@media(max-width:1100px){.header,.b2c-nav-ready .header{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px;padding:16px 20px}.header .brand{grid-column:1;grid-row:1;justify-self:start}.header .b2c-return{grid-column:1;grid-row:2;justify-self:start}.header .b2c-logout{grid-column:2;grid-row:2;justify-self:end}.b2c-nav-ready .header .menu-toggle{display:inline-flex;align-items:center;justify-content:center;grid-column:2;grid-row:1;justify-self:end;min-height:44px;padding:9px 15px;border:1px solid var(--muted);border-radius:8px;background:var(--panel);color:var(--ink)}.header nav{grid-column:1/-1;grid-row:3;flex-wrap:wrap}.b2c-nav-ready .header nav{display:none;width:100%;align-items:stretch;flex-direction:column;gap:4px}.b2c-nav-ready .header nav.is-open{display:flex}.b2c-nav-ready .header nav>a{font-size:15px;padding:12px 16px;min-height:46px;border-radius:8px}}
@media(max-width:360px){.header,.b2c-nav-ready .header{padding-inline:14px;column-gap:8px}.header .b2c-return{font-size:12px;padding-inline:10px}.header .b2c-logout .btn{font-size:12px;padding-inline:11px}.header .brand{font-size:12px!important}}
@media print{.academy-return,.b2c-return,.b2c-logout{display:none!important}}

/* Intrinsic content must fit its grid track, including at phone widths. */
.wrap{width:100%;min-width:0}.wrap :where(img,video,iframe){max-width:100%}
.wrap :where(fieldset,details,article,aside,section,nav,form),.header>*{min-width:0}
.wrap :where(p,li,h1,h2,h3,a,label,legend){overflow-wrap:anywhere}
.wrap :where(.hero,.product-hero,.two-col,.checkout,.form-grid,.course-grid,.pack-grid)>*{min-width:0}
.wrap fieldset{max-width:100%}.wrap :where(input,select,textarea){max-width:100%}
.wrap :where(.btn,.button){white-space:normal;max-width:100%}
.breadcrumb{flex-wrap:wrap}.breadcrumb>span{min-width:0}
@media(max-width:700px){
 .header{position:relative}.wrap{padding-inline:16px}
 .module summary{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:8px 12px}
 .module summary small{grid-column:2;grid-row:2;white-space:normal}
 .module summary::after{grid-column:3;grid-row:1/3}
 .section-head,.cross,.actions,.buy-row{flex-wrap:wrap}
 .checkout,.product-hero,.two-col{grid-template-columns:minmax(0,1fr)}
 .purchase-panel{position:static}.panel{max-width:100%}
 input:not([type=checkbox],[type=radio]),select,textarea{font-size:16px}
}

/* Shared navigation: the brand returns to the main Academy. */
.header .brand{text-decoration:none;max-width:100%;min-width:0}.header .brand span{min-width:0}.header .brand:focus-visible{outline:3px solid var(--green);outline-offset:6px;border-radius:5px}.header .b2c-missions-link{gap:7px;font-weight:700}.b2c-missions-link span{font-size:9px;letter-spacing:.05em;background:#dcedac;color:#284831;padding:4px 6px;border-radius:4px}.header nav .b2c-logout{flex-shrink:0}.header nav .b2c-logout .btn{font-size:13px}
@media(max-width:1100px){.header nav{grid-row:2}.header nav .b2c-logout{display:block;align-self:stretch;justify-self:stretch}.b2c-nav-ready .header nav .b2c-logout .btn{width:100%;justify-content:flex-start;font-size:15px;padding:12px 16px}}
@media(max-width:360px){.b2c-nav-ready .header .menu-toggle{width:90px;white-space:normal;line-height:1.2;font-size:12px;padding:8px}.header .brand{gap:8px}}