:root{--bg:#0a0c0f;--panel:#11151a;--panel2:#171c22;--text:#f6f7f8;--muted:#a6afb9;--line:#27303a;--teal:#2cd6c4;--pink:#f04ca7;--danger:#ff7272;--success:#52d38a;--max:1180px}
*{box-sizing:border-box}html{color-scheme:dark}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.shell{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.narrow{max-width:820px}.site-header{position:sticky;top:0;z-index:20;background:rgba(10,12,15,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em}.brand img{width:44px;height:44px;border-radius:12px;object-fit:cover}.brand.compact{font-size:1.05rem}.main-nav{display:flex;align-items:center;gap:20px;font-size:.95rem}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border:1px solid transparent;border-radius:12px;background:linear-gradient(135deg,var(--teal),#1cb7af);color:#061211;font-weight:800;cursor:pointer}.button.ghost{background:transparent;color:var(--text);border-color:var(--line)}.button.full{width:100%}.text-button{background:none;border:0;color:var(--muted);cursor:pointer;font:inherit}.hero{padding:92px 0 72px;background:radial-gradient(circle at 70% 20%,rgba(44,214,196,.10),transparent 32%),radial-gradient(circle at 30% 75%,rgba(240,76,167,.08),transparent 28%)}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}.hero h1,.page-hero h1{font-size:clamp(3rem,7vw,6.6rem);line-height:.93;margin:.15em 0 .3em;letter-spacing:-.055em}.hero h1 span,.page-hero h1 span{color:var(--teal)}.lead{font-size:clamp(1.05rem,2vw,1.35rem);color:var(--muted);max-width:720px}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.77rem;font-weight:800;color:var(--pink)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.hero-panel{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:22px;padding:22px}.path-card{display:block;padding:18px 0;border-top:1px solid var(--line)}.path-card strong{display:block;font-size:1.13rem}.path-card span{color:var(--muted);font-size:.94rem}.section{padding:72px 0}.cards{display:grid;gap:18px}.cards.three{grid-template-columns:repeat(3,1fr)}.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px}.card h2{margin:.25rem 0 .5rem}.card p{color:var(--muted)}.page-hero{padding:94px 0 72px}.page-hero h1{font-size:clamp(3rem,6vw,5rem)}.price-line{display:flex;align-items:baseline;gap:14px;margin:26px 0}.price-line strong{font-size:3rem}.price-line span{color:var(--muted)}.site-footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted)}.footer-grid{display:flex;justify-content:space-between;gap:30px}.auth-section{min-height:calc(100vh - 150px);display:grid;place-items:center;padding:50px 16px}.auth-card{width:min(100%,440px);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:30px}.auth-card h1{font-size:2.2rem;margin:.2rem 0}.stack-form{display:grid;gap:16px;margin-top:24px}.stack-form label{display:grid;gap:7px;font-weight:700}.stack-form input{width:100%;min-height:48px;border:1px solid var(--line);background:#090c0f;color:var(--text);border-radius:10px;padding:10px 12px;font:inherit}.flash{padding:12px 16px;border-radius:10px;margin-top:16px}.flash.error{background:rgba(255,114,114,.1);border:1px solid rgba(255,114,114,.35);color:#ffc4c4}.flash.success{background:rgba(82,211,138,.1);border:1px solid rgba(82,211,138,.35);color:#c8f8d9}.app-body{min-height:100vh}.app-topbar{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--line);background:#0d1014}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:calc(100vh - 66px)}.app-sidebar{border-right:1px solid var(--line);padding:22px 14px;background:#0d1014}.app-sidebar a{display:block;padding:10px 12px;margin:3px 0;border-radius:9px;color:var(--muted)}.app-sidebar a.active,.app-sidebar a:hover{background:var(--panel2);color:var(--text)}.app-content{padding:32px;min-width:0}.dashboard-head{margin-bottom:26px}.dashboard-head h1{font-size:clamp(2.2rem,5vw,4rem);line-height:1;margin:.2rem 0}.dashboard-head p{color:var(--muted)}.dashboard-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.span-2{grid-column:span 2}.progress{height:10px;background:#080a0d;border-radius:999px;overflow:hidden;margin:18px 0}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--teal),var(--pink))}.muted{color:var(--muted)}
@media(max-width:900px){.main-nav a:not(.button){display:none}.hero-grid,.cards.three,.dashboard-grid{grid-template-columns:1fr}.hero{padding-top:64px}.span-2{grid-column:span 1}.app-shell{grid-template-columns:1fr}.app-sidebar{display:flex;gap:6px;overflow:auto;border-right:0;border-bottom:1px solid var(--line)}.app-sidebar a{white-space:nowrap}.app-content{padding:22px 16px}}
@media(max-width:560px){.shell{width:min(calc(100% - 22px),var(--max))}.nav-wrap{min-height:66px}.brand img{width:38px;height:38px}.hero h1,.page-hero h1{font-size:clamp(2.65rem,14vw,4.2rem)}.hero-panel{padding:17px}.section{padding:48px 0}.footer-grid{display:block}.app-topbar{padding:0 14px}}

/* Admin control center */
.admin-account{display:flex;align-items:center;gap:18px;color:var(--muted);font-size:.9rem}.admin-account form{margin:0}.sidebar-label{margin:4px 12px 8px;text-transform:uppercase;letter-spacing:.14em;font-size:.66rem;font-weight:800;color:#67727d}.sidebar-space{margin-top:24px}.sidebar-disabled{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;margin:2px 0;color:#59636e;font-size:.92rem;cursor:not-allowed}.sidebar-disabled small{font-size:.62rem;text-transform:uppercase;letter-spacing:.08em}.admin-page-head{display:flex;justify-content:space-between;align-items:end;gap:20px}.metric-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin-bottom:32px}.metric-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px}.metric-card span{display:block;color:var(--muted);font-size:.82rem;font-weight:700}.metric-card strong{display:block;font-size:2rem;line-height:1.15;margin:8px 0}.metric-card small{color:#77828c}.admin-section{margin-top:28px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:14px}.section-heading h2{margin:.1rem 0;font-size:1.55rem}.button.small{min-height:38px;padding:7px 13px;font-size:.86rem}.admin-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:var(--panel)}.admin-table{width:100%;border-collapse:collapse;min-width:760px}.admin-table th,.admin-table td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:middle}.admin-table th{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:#7f8994;background:#0e1216}.admin-table td{font-size:.92rem}.admin-table tbody tr:last-child td{border-bottom:0}.admin-table small{color:var(--muted)}.status-badge{display:inline-flex;align-items:center;min-height:25px;padding:3px 9px;border-radius:999px;font-size:.72rem;font-weight:800;border:1px solid var(--line)}.status-badge.success{color:#aaf0c8;background:rgba(82,211,138,.1);border-color:rgba(82,211,138,.25)}.status-badge.neutral{color:#bbc3ca;background:#171c22}.empty-state{padding:34px;border:1px dashed #34404b;border-radius:16px;background:rgba(17,21,26,.65)}.empty-state strong{font-size:1.15rem}.empty-state p{margin:.4rem 0 0;color:var(--muted)}.module-admin-list{display:grid;gap:9px}.module-admin-row{display:grid;grid-template-columns:58px minmax(0,1fr) auto;gap:16px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:15px 17px}.module-order{display:grid;place-items:center;width:42px;height:42px;border-radius:11px;background:#0c1115;color:var(--teal);font-weight:900}.module-copy strong{font-size:1rem}.module-copy p{margin:.2rem 0 0;color:var(--muted);font-size:.86rem}.module-meta{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:.82rem}
@media(max-width:1100px){.metric-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:700px){.metric-grid{grid-template-columns:1fr 1fr}.admin-account>span{display:none}.module-admin-row{grid-template-columns:48px 1fr}.module-meta{grid-column:2;justify-content:flex-start;flex-wrap:wrap}}@media(max-width:440px){.metric-grid{grid-template-columns:1fr}}

/* Curriculum CMS */
.admin-flash{margin:0 0 20px}.table-actions{display:flex;align-items:center;gap:10px;white-space:nowrap}.table-actions form{margin:0}.text-action{border:0;background:transparent;color:var(--teal);font:inherit;font-weight:800;cursor:pointer;padding:7px 4px}.text-action:hover{text-decoration:underline}.form-panel{max-width:1050px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px}.admin-form{display:grid;gap:20px}.admin-form>label,.form-grid>label{display:grid;gap:7px}.admin-form label>span,.form-grid label>span{font-size:.86rem;font-weight:800}.admin-form input,.admin-form select,.admin-form textarea{width:100%;border:1px solid var(--line);background:#090c0f;color:var(--text);border-radius:10px;padding:11px 12px;font:inherit}.admin-form input,.admin-form select{min-height:46px}.admin-form textarea{resize:vertical;line-height:1.55}.admin-form input:focus,.admin-form select:focus,.admin-form textarea:focus{outline:2px solid rgba(44,214,196,.25);border-color:var(--teal)}.admin-form small{color:var(--muted);font-weight:400}.form-grid{display:grid;gap:16px}.form-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.check-card{grid-template-columns:auto 1fr!important;align-items:start!important;gap:11px!important;border:1px solid var(--line);background:#0d1115;border-radius:12px;padding:13px}.check-card input{width:18px;height:18px;min-height:0;margin-top:3px}.check-card span{display:block!important}.check-card strong{display:block}.check-card small{display:block;margin-top:2px}.form-actions{display:flex;justify-content:flex-end;padding-top:4px}.code-textarea{font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-size:.9rem}.course-switcher{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 24px}.course-pill{display:inline-flex;align-items:center;gap:9px;padding:9px 13px;border:1px solid var(--line);border-radius:999px;background:var(--panel);color:var(--muted);font-size:.84rem;font-weight:750}.course-pill span{text-transform:uppercase;letter-spacing:.07em;font-size:.6rem;color:#697580}.course-pill.active{border-color:rgba(44,214,196,.45);color:var(--text);background:rgba(44,214,196,.08)}.curriculum-builder{display:grid;gap:16px}.curriculum-module{border:1px solid var(--line);border-radius:18px;background:var(--panel);overflow:hidden}.curriculum-module-head{display:grid;grid-template-columns:58px minmax(0,1fr) auto;align-items:center;gap:16px;padding:18px}.curriculum-module-head h2{margin:.1rem 0 .2rem;font-size:1.35rem}.curriculum-module-head .module-copy p:last-child{margin:0;color:var(--muted);font-size:.88rem}.module-toolbar{display:flex;align-items:center;justify-content:flex-end;gap:9px;flex-wrap:wrap}.lesson-list{border-top:1px solid var(--line);background:#0d1115}.lesson-row{display:grid;grid-template-columns:55px minmax(0,1fr) auto;align-items:center;gap:14px;padding:12px 18px;border-bottom:1px solid #202832}.lesson-row:last-child{border-bottom:0}.lesson-row:hover{background:#13191f}.lesson-order{color:#61707c;font-size:.77rem;font-weight:900}.lesson-main{min-width:0}.lesson-main strong{display:block}.lesson-main small{display:block;color:var(--muted);margin-top:1px}.lesson-empty{padding:16px 18px;color:#65717c;font-size:.88rem}.button.ghost{background:transparent;color:var(--text);border-color:var(--line)}
@media(max-width:850px){.form-grid.two,.form-grid.three{grid-template-columns:1fr}.curriculum-module-head{grid-template-columns:50px 1fr}.module-toolbar{grid-column:2;justify-content:flex-start}.admin-page-head{align-items:flex-start;flex-direction:column}.table-actions{flex-direction:column;align-items:flex-start}.form-panel{padding:18px}}
@media(max-width:560px){.lesson-row{grid-template-columns:36px 1fr}.lesson-row>.status-badge{grid-column:2;justify-self:start}.course-switcher{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}.course-pill{white-space:nowrap}.curriculum-module-head{padding:14px}.lesson-row{padding:11px 14px}}


/* 11N public navigation polish */
:root{--max:1280px}
.nav-wrap{min-height:88px;gap:36px}
.brand{gap:15px;font-size:1.1rem}
.brand img{width:58px;height:58px;border-radius:15px}
.main-nav{gap:clamp(17px,2vw,30px);font-size:1rem;font-weight:700}
.main-nav>.button{padding-inline:21px}
@media(max-width:1050px){.main-nav{gap:16px;font-size:.94rem}.brand img{width:52px;height:52px}}
@media(max-width:900px){.nav-wrap{min-height:78px}.brand img{width:48px;height:48px}}
@media(max-width:560px){.nav-wrap{min-height:70px}.brand img{width:44px;height:44px}}

/* Curriculum integrity signals */
.curriculum-integrity-banner{margin:0 0 20px;padding:16px 18px;border:1px solid rgba(255,185,82,.35);background:rgba(255,185,82,.08);border-radius:14px;color:#f6d7a2}
.curriculum-integrity-banner strong{display:block;color:#ffe1ac;margin-bottom:3px}
.lesson-empty.incomplete{color:#ffb6a8;background:rgba(255,114,114,.06);border-left:3px solid rgba(255,114,114,.7)}
.lesson-empty.intentional-hold{color:#c9d2da;background:rgba(166,175,185,.05)}