:root{
  --nxs:#0758d8;
  --nxs-2:#0b6cff;
  --nxs-3:#48a4ff;
  --navy:#03142c;
  --navy-2:#061d3d;
  --navy-3:#0a2b58;
  --ink:#10213a;
  --muted:#6c7c92;
  --line:#dfe7f1;
  --line-dark:rgba(255,255,255,.10);
  --bg:#f3f7fc;
  --card:#ffffff;
  --success:#0f9f6e;
  --danger:#d8495a;
  --warning:#d38a14;
  --info:#3b82f6;
  --radius:22px;
  --radius-sm:14px;
  --shadow:0 16px 48px rgba(14,41,79,.09);
  --shadow-strong:0 28px 70px rgba(1,22,53,.18);
  --sidebar:274px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
body::selection{background:#cfe4ff}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{border:0}
img{max-width:100%;display:block}
svg{display:block}

/* APP LAYOUT */
.app-shell{min-height:100vh}
.sidebar-nav{position:fixed;inset:0 auto 0 0;width:var(--sidebar);z-index:80;display:flex;flex-direction:column;background:linear-gradient(180deg,#02142e 0%,#052655 58%,#061b39 100%);color:#fff;border-right:1px solid rgba(255,255,255,.07);box-shadow:12px 0 42px rgba(1,17,41,.16);overflow:hidden}
.sidebar-nav::before{content:"";position:absolute;width:280px;height:280px;border-radius:50%;background:#0b6cff;filter:blur(100px);opacity:.18;top:-130px;left:-100px;pointer-events:none}
.sidebar-nav::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to bottom,#000,transparent 75%);pointer-events:none}
.sidebar-brand{position:relative;z-index:1;display:flex;align-items:center;gap:12px;padding:23px 19px 18px;margin:0 7px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-brand img{width:52px;height:52px;object-fit:cover;border-radius:15px;box-shadow:0 10px 28px rgba(0,88,216,.38);border:1px solid rgba(255,255,255,.18)}
.sidebar-brand strong{font-size:17px;letter-spacing:-.02em;display:block}
.sidebar-brand small{display:block;color:#88a9cf;font-size:10px;text-transform:uppercase;letter-spacing:.12em;margin-top:3px;font-weight:800}
.sidebar-kicker{position:relative;z-index:1;padding:18px 20px 8px;font-size:10px;font-weight:900;color:#5f88b7;text-transform:uppercase;letter-spacing:.16em}
.sidebar-menu{position:relative;z-index:1;display:flex;flex-direction:column;gap:5px;padding:2px 12px}
.sidebar-menu a{display:flex;align-items:center;gap:12px;padding:12px 13px;border-radius:13px;color:#a9c2de;font-weight:700;font-size:14px;transition:.18s ease;border:1px solid transparent}
.sidebar-menu a .nav-icon{width:19px;height:19px;opacity:.85;flex:0 0 19px}
.sidebar-menu a:hover{color:#fff;background:rgba(255,255,255,.065);border-color:rgba(255,255,255,.05);transform:translateX(2px)}
.sidebar-menu a.active{color:#fff;background:linear-gradient(135deg,rgba(11,108,255,.95),rgba(7,88,216,.78));border-color:rgba(107,175,255,.35);box-shadow:0 12px 28px rgba(0,88,216,.25)}
.sidebar-menu a.active .nav-icon{opacity:1}
.sidebar-bottom{position:relative;z-index:1;margin-top:auto;padding:14px}
.sidebar-profile{display:flex;align-items:center;gap:11px;padding:12px;border-radius:16px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.075)}
.avatar{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,#0b6cff,#57aaff);color:#fff;font-weight:900;box-shadow:0 8px 20px rgba(11,108,255,.24)}
.sidebar-profile-copy{min-width:0;flex:1}
.sidebar-profile-copy strong{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-profile-copy small{display:block;color:#7da3ce;font-size:10px;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-logout{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#8baed2;transition:.18s}
.sidebar-logout:hover{background:rgba(255,255,255,.08);color:#fff}
.sidebar-logout svg{width:17px;height:17px}
.app-main{margin-left:var(--sidebar);min-height:100vh}
.app-topbar{height:76px;position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:14px;padding:0 28px;background:rgba(246,249,253,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(213,224,238,.78)}
.topbar-title{min-width:0}
.topbar-title strong{display:block;font-size:14px;color:#15345b}
.topbar-title small{display:block;font-size:11px;color:#8492a7;margin-top:1px}
.topbar-spacer{flex:1}
.topbar-chip{display:flex;align-items:center;gap:9px;padding:8px 11px;border:1px solid #dde7f3;border-radius:13px;background:rgba(255,255,255,.78);font-size:12px;color:#5a6b82;box-shadow:0 5px 15px rgba(31,57,91,.035)}
.topbar-chip svg{width:16px;height:16px;color:var(--nxs)}
.mobile-menu-btn{display:none;width:40px;height:40px;border-radius:12px;background:#fff;border:1px solid #dce6f2;color:#184271;align-items:center;justify-content:center;cursor:pointer}
.mobile-menu-btn svg{width:19px;height:19px}
.sidebar-overlay{position:fixed;inset:0;background:rgba(1,12,29,.52);backdrop-filter:blur(2px);z-index:75;opacity:0;visibility:hidden;transition:.2s}

.page-shell{width:min(1420px,calc(100% - 44px));margin:28px auto 58px}
.page-shell>*{animation:pageIn .35s ease both}
@keyframes pageIn{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}

/* PUBLIC / AUTH */
.public-body{background:#03142c;min-height:100vh;color:#fff}
.public-topbar{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 max(22px,calc((100vw - 1420px)/2));border-bottom:1px solid rgba(255,255,255,.08);background:rgba(3,20,44,.84);backdrop-filter:blur(18px)}
.public-brand{display:flex;align-items:center;gap:12px}
.public-brand img{width:44px;height:44px;object-fit:cover;border-radius:12px;border:1px solid rgba(255,255,255,.16)}
.public-brand strong{font-size:16px;display:block}
.public-brand small{display:block;color:#7899be;font-size:10px;text-transform:uppercase;letter-spacing:.12em;margin-top:2px}
.public-shell{width:min(1420px,calc(100% - 34px));margin:0 auto;min-height:calc(100vh - 74px)}
.login-shell{min-height:calc(100vh - 110px);display:grid;align-items:center;padding:42px 0 58px;position:relative}
.login-shell::before{content:"";position:fixed;inset:74px 0 0;background:radial-gradient(circle at 18% 25%,rgba(11,108,255,.25),transparent 34%),radial-gradient(circle at 82% 75%,rgba(31,142,255,.14),transparent 33%),linear-gradient(135deg,#021129,#06234a 58%,#03142c);z-index:-2}
.login-shell::after{content:"";position:fixed;inset:74px 0 0;background-image:linear-gradient(rgba(77,150,238,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(77,150,238,.07) 1px,transparent 1px);background-size:42px 42px;mask-image:radial-gradient(circle at center,#000 20%,transparent 72%);z-index:-1}
.auth-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(390px,.72fr);gap:58px;align-items:center}
.auth-brand-panel{padding:28px 20px 28px 10px}
.auth-logo{display:flex;align-items:center;gap:18px;margin-bottom:30px}
.auth-logo img{width:76px;height:76px;border-radius:20px;object-fit:cover;border:1px solid rgba(255,255,255,.17);box-shadow:0 18px 50px rgba(0,86,210,.35)}
.auth-eyebrow{color:#63a8ff;font-weight:900;font-size:11px;text-transform:uppercase;letter-spacing:.18em;margin-bottom:10px}
.auth-brand-panel h1{font-size:clamp(42px,6vw,72px);line-height:.95;letter-spacing:-.05em;margin:0 0 18px;max-width:720px}
.auth-brand-panel h1 span{color:#69adff}
.auth-brand-panel>p{max-width:650px;color:#9db7d3;font-size:17px;line-height:1.7}
.auth-features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px;margin-top:29px}
.auth-feature{padding:15px;border:1px solid rgba(255,255,255,.09);background:rgba(255,255,255,.045);border-radius:16px;color:#b7cce1;font-size:12px;backdrop-filter:blur(10px)}
.auth-feature strong{color:#fff;display:block;font-size:13px;margin-bottom:4px}
.login-card{width:100%;padding:30px!important;background:rgba(255,255,255,.985)!important;color:var(--ink);border:1px solid rgba(255,255,255,.85)!important;box-shadow:0 35px 80px rgba(0,0,0,.28)!important}
.login-brand-mini{display:flex;align-items:center;gap:11px;margin-bottom:24px}
.login-brand-mini img{width:42px;height:42px;object-fit:cover;border-radius:12px}
.login-brand-mini strong{font-size:13px;display:block}
.login-brand-mini small{font-size:10px;color:var(--muted);display:block;margin-top:2px;text-transform:uppercase;letter-spacing:.1em}
.login-title{font-size:31px;letter-spacing:-.035em;margin:0 0 7px}
.login-card .field input{background:#f8fbff}
.login-security{display:flex;align-items:center;gap:8px;margin-top:16px;color:#8291a5;font-size:11px}
.login-security svg{width:15px;height:15px;color:var(--success)}

/* HERO */
.hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.75fr);gap:24px;background:linear-gradient(135deg,#031b3c 0%,#0748a8 58%,#0b6cff 115%);color:#fff;border:1px solid rgba(255,255,255,.10);border-radius:29px;padding:32px;box-shadow:0 26px 65px rgba(6,44,104,.20)}
.hero::before{content:"";position:absolute;right:-100px;top:-180px;width:430px;height:430px;border-radius:50%;background:rgba(68,157,255,.32);filter:blur(30px);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(120deg,transparent 15%,#000 65%,transparent);pointer-events:none}
.hero>div{position:relative;z-index:1}
.hero-brand-row{display:flex;align-items:center;gap:13px;margin-bottom:22px}
.hero-brand-row img{width:50px;height:50px;border-radius:14px;object-fit:cover;border:1px solid rgba(255,255,255,.18);box-shadow:0 10px 30px rgba(0,44,113,.28)}
.hero-kicker{font-size:10px;text-transform:uppercase;letter-spacing:.18em;color:#9ec8ff;font-weight:900}
.hero h1{font-size:clamp(32px,4.5vw,56px);line-height:1.01;letter-spacing:-.05em;margin:0 0 13px}
.hero p{color:#c7dcf5;max-width:760px;line-height:1.65;margin:0 0 20px}
.hero-card{background:linear-gradient(145deg,rgba(255,255,255,.14),rgba(255,255,255,.055));border:1px solid rgba(255,255,255,.16);border-radius:21px;padding:22px;backdrop-filter:blur(12px);box-shadow:inset 0 1px rgba(255,255,255,.12)}
.hero-card .stat{color:#fff}
.hero-card .stat-label{color:#b7d3f1}
.hero-metric-label{font-size:10px;text-transform:uppercase;letter-spacing:.13em;color:#9cc5ef;font-weight:900;margin-bottom:8px}
.hero-progress-meta{display:flex;justify-content:space-between;color:#bed7f1;font-size:11px;margin-top:8px}

/* GRID / CARDS */
.grid{display:grid;gap:18px}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:rgba(255,255,255,.97);border:1px solid #e2eaf3;border-radius:var(--radius);padding:21px;box-shadow:0 10px 34px rgba(16,50,91,.055);transition:border-color .18s,box-shadow .18s,transform .18s}
.card:hover{border-color:#cddcf0;box-shadow:0 17px 43px rgba(16,50,91,.075)}
.card h1,.card h2,.card h3{letter-spacing:-.025em}
.card h2,.card h3{margin-top:0}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:34px 0 15px}
.section-title h1,.section-title h2{margin:0;letter-spacing:-.035em}
.section-title h1{font-size:30px}
.section-title h2{font-size:23px}
.section-title .muted{margin-top:4px}
.muted{color:var(--muted)}
.stat{font-size:35px;font-weight:900;letter-spacing:-.045em;line-height:1}
.stat-label{font-size:12px;color:var(--muted);margin-top:5px}
.kpi-card{position:relative;overflow:hidden;min-height:126px}
.kpi-card::after{content:"";position:absolute;width:90px;height:90px;border-radius:50%;right:-28px;top:-26px;background:rgba(11,108,255,.07)}
.kpi{display:flex;align-items:center;justify-content:space-between;gap:12px;position:relative;z-index:1}
.kpi-icon{width:45px;height:45px;border-radius:15px;display:grid;place-items:center;background:#edf5ff;color:var(--nxs);border:1px solid #d9eaff;font-size:0}
.kpi-icon svg{width:21px;height:21px}
.kpi-trend{display:inline-flex;align-items:center;gap:5px;margin-top:12px;padding:5px 8px;border-radius:999px;background:#f4f8fd;color:#7890aa;font-size:10px;font-weight:800}

/* PILLS / PROGRESS */
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:#edf5ff;color:#1757a8;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.055em;border:1px solid #dcecff}
.pill.green{background:#e8f8f2;color:#087b53;border-color:#cdf0e3}
.pill.orange{background:#fff6e6;color:#9d6509;border-color:#f4dfb6}
.pill.red{background:#ffedf0;color:#a82f42;border-color:#f7ccd4}
.hero .pill{background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.16);color:#ddecff}
.progress{height:8px;background:#e8eef6;border-radius:999px;overflow:hidden}
.progress>span{display:block;height:100%;background:linear-gradient(90deg,#0758d8,#0b6cff 55%,#58b2ff);border-radius:999px;box-shadow:0 0 18px rgba(11,108,255,.32)}
.hero .progress{background:rgba(255,255,255,.13)}
.hero .progress>span{background:linear-gradient(90deg,#8fc8ff,#fff)}
.progress.large{height:10px}

/* COURSE CARDS */
.course-card{display:flex;flex-direction:column;gap:14px;min-height:100%;position:relative;overflow:hidden}
.course-card::before{content:"";height:4px;position:absolute;inset:0 0 auto;background:linear-gradient(90deg,#0758d8,#37a2ff);opacity:.95}
.course-card:hover{transform:translateY(-3px);box-shadow:0 20px 48px rgba(12,53,108,.11)}
.course-top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.course-card h3{font-size:18px;line-height:1.25;margin:1px 0 7px}
.course-card p{line-height:1.55;font-size:13px}
.course-card .btn.block{margin-top:auto}
.course-meta{display:flex;gap:12px;flex-wrap:wrap;color:#7a8da4;font-size:11px}
.course-meta span{display:flex;align-items:center;gap:5px}
.course-meta svg{width:13px;height:13px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;border:1px solid transparent;border-radius:13px;padding:10px 16px;background:linear-gradient(135deg,var(--nxs),var(--nxs-2));color:#fff;font-weight:850;font-size:13px;cursor:pointer;box-shadow:0 9px 20px rgba(7,88,216,.20);transition:.17s ease}
.btn svg{width:16px;height:16px}
.btn:hover{transform:translateY(-1px);box-shadow:0 13px 25px rgba(7,88,216,.26);filter:saturate(1.05)}
.btn.secondary{background:#edf3f9;color:#214361;border-color:#dbe6f0;box-shadow:none}
.btn.secondary:hover{background:#e3edf6}
.btn.danger{background:#d8495a;box-shadow:0 8px 18px rgba(216,73,90,.18)}
.btn.success{background:#0f9f6e;box-shadow:0 8px 18px rgba(15,159,110,.18)}
.btn.ghost{background:#fff;color:#175cb7;border-color:#cfe0f4;box-shadow:none}
.btn.ghost:hover{background:#f4f8fd}
.btn.small{min-height:34px;padding:7px 11px;font-size:11px;border-radius:10px}
.btn.block{width:100%}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ALERTS */
.flash{display:flex;align-items:center;gap:10px;padding:13px 15px;border-radius:14px;margin:0 0 16px;border:1px solid;font-size:13px;transition:.4s}
.flash.success{background:#ecfbf5;color:#0d724f;border-color:#c9efdf}
.flash.error{background:#fff0f2;color:#9e3242;border-color:#f3c9d0}
.flash.warning{background:#fff8ea;color:#8f610f;border-color:#f0deb7}

/* FORMS */
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-weight:800;font-size:11px;color:#37516f;text-transform:uppercase;letter-spacing:.045em}
.field input,.field select,.field textarea{width:100%;border:1px solid #d4dfeb;background:#fbfdff;color:#17314f;border-radius:13px;padding:11px 12px;outline:none;transition:.16s;box-shadow:inset 0 1px 2px rgba(16,36,62,.02)}
.field textarea{min-height:132px;resize:vertical;line-height:1.55}
.field input:focus,.field select:focus,.field textarea:focus{border-color:#69a9f8;box-shadow:0 0 0 4px rgba(11,108,255,.09);background:#fff}
.field input[type="checkbox"]{width:auto}

/* TABLES */
table{width:100%;border-collapse:collapse;background:#fff}
th,td{text-align:left;padding:13px 14px;border-bottom:1px solid #e8eef5;vertical-align:top}
th{font-size:10px;text-transform:uppercase;letter-spacing:.075em;color:#71839b;background:#f8fbfe;font-weight:900}
td{font-size:13px}
tbody tr:hover td{background:#fbfdff}
.table-wrap{overflow:auto;border:1px solid #e0e8f2;border-radius:18px;background:#fff;box-shadow:0 8px 25px rgba(17,48,84,.035)}
.table-wrap table tr:last-child td{border-bottom:0}

/* ADMIN NAV */
.admin-nav{display:flex;gap:7px;overflow:auto;margin-bottom:20px;padding:6px;background:#eaf1f8;border:1px solid #dfe9f3;border-radius:15px;scrollbar-width:none}
.admin-nav::-webkit-scrollbar{display:none}
.admin-nav a{padding:9px 13px;border-radius:10px;white-space:nowrap;font-weight:850;font-size:11px;color:#5c7087;transition:.16s}
.admin-nav a:hover{background:#f8fbff;color:#214d7f}
.admin-nav a.active{background:#08295b;color:#fff;box-shadow:0 7px 16px rgba(8,41,91,.18)}

/* LESSON */
.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:22px}
.lesson-content{font-size:16px;line-height:1.82;color:#29425e}
.lesson-content h2,.lesson-content h3{color:#102b4a;margin-top:30px}
.lesson-content ul,.lesson-content ol{padding-left:22px}
.lesson-content li{margin:8px 0}
.sidebar{align-self:start;position:sticky;top:98px;max-height:calc(100vh - 120px);overflow:auto}
.module{margin-bottom:19px}
.module-title{font-weight:900;margin-bottom:9px;color:#264b77;font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.lesson-link{display:flex;justify-content:space-between;gap:10px;padding:10px 11px;border-radius:11px;font-size:13px;color:#53677f;transition:.16s;border:1px solid transparent}
.lesson-link:hover,.lesson-link.active{background:#edf5ff;color:#164f9a;border-color:#dbeaff}
.video-wrap{aspect-ratio:16/9;background:#020b18;border-radius:20px;overflow:hidden;margin:20px 0;box-shadow:0 18px 40px rgba(2,15,36,.18);border:1px solid #112a4a}
.video-wrap video,.video-wrap iframe{width:100%;height:100%;border:0}

/* QUIZ */
.quiz-question{margin:0 0 18px;padding:20px;border:1px solid #e0e9f2;border-radius:18px;background:#fff;box-shadow:0 9px 28px rgba(15,43,76,.04)}
.quiz-question h3{font-size:16px;line-height:1.45}
.answer{display:flex;gap:10px;align-items:flex-start;padding:10px;border-radius:11px;color:#435b74;transition:.15s}
.answer:hover{background:#f1f6fb;color:#1e4776}

/* BADGES */
.badge-list{display:flex;flex-wrap:wrap;gap:9px}
.badge-item{padding:9px 12px;background:#fff;border:1px solid #e0e8f1;border-radius:999px;font-size:12px;box-shadow:0 6px 16px rgba(19,51,87,.04)}

/* CERTIFICATE */
.certificate{background:#fff;min-height:720px;text-align:center;display:flex;flex-direction:column;justify-content:center;position:relative;border:1px solid #cfddec;border-radius:8px;padding:58px;overflow:hidden;box-shadow:0 25px 65px rgba(13,45,83,.12)}
.certificate::before{content:"";position:absolute;inset:18px;border:2px solid #082c61;pointer-events:none}
.certificate::after{content:"";position:absolute;width:460px;height:460px;border-radius:50%;background:rgba(11,108,255,.055);right:-230px;top:-180px;pointer-events:none}
.certificate-logo{width:92px;height:92px;object-fit:cover;border-radius:22px;margin:0 auto 18px;box-shadow:0 14px 36px rgba(7,88,216,.20)}
.certificate h1{font-size:47px;letter-spacing:-.045em;margin:0;color:#082b5d}
.certificate .name{font-size:31px;font-weight:900;color:var(--nxs);margin:22px 0;letter-spacing:-.025em}
.certificate .course-name{font-size:26px;font-weight:900;color:#12385f}
.certificate-code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#edf5ff;color:#175298;padding:7px 10px;border-radius:8px;display:inline-block;border:1px solid #d6e7fb;font-size:11px}

/* GENERIC */
.footer{text-align:center;color:#8493a7;padding:0 20px 25px;font-size:10px;text-transform:uppercase;letter-spacing:.08em}
.app-main>.footer{margin-left:0}
.empty{padding:31px;text-align:center;color:var(--muted)}
.code-note{font-family:ui-monospace,monospace;background:#07162b;color:#c7e1ff;padding:15px;border-radius:13px;overflow:auto;border:1px solid #17385f}
.danger-zone{border-color:#f0c9cf;background:#fffafb}
.tech-panel{position:relative;overflow:hidden}
.tech-panel::after{content:"";position:absolute;inset:auto -40px -70px auto;width:180px;height:180px;border-radius:50%;background:rgba(11,108,255,.08);filter:blur(6px)}
.quick-row{display:flex;gap:10px;flex-wrap:wrap}
.quick-action{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid #e0e9f3;border-radius:14px;background:#fff;color:#274f7e;font-size:12px;font-weight:800;transition:.16s}
.quick-action:hover{transform:translateY(-2px);border-color:#bfd8f6;box-shadow:0 10px 22px rgba(18,60,110,.08)}
.quick-action svg{width:17px;height:17px;color:#0b6cff}
.dashboard-welcome{font-size:12px;color:#aaccf3;text-transform:uppercase;letter-spacing:.11em;font-weight:900;margin-bottom:8px}
.activity-list{display:flex;flex-direction:column}
.activity-item{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid #ebf0f5}
.activity-item:last-child{border-bottom:0}
.activity-dot{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:#eef6ff;color:#1668c7;flex:0 0 34px}
.activity-dot svg{width:16px;height:16px}
.activity-copy{min-width:0;flex:1}
.activity-copy strong{display:block;font-size:12px;color:#294865}
.activity-copy small{display:block;color:#8090a4;font-size:10px;margin-top:3px}

/* INSTALLER COMPATIBILITY */
body:not(.app-body):not(.public-body){background:var(--bg)}
body:not(.app-body):not(.public-body) .page-shell{margin-top:32px}
body:not(.app-body):not(.public-body) .hero{max-width:1420px}

@media(max-width:1180px){
  :root{--sidebar:238px}
  .grid.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .auth-grid{gap:30px}
}
@media(max-width:980px){
  .sidebar-nav{transform:translateX(-102%);transition:.22s ease;width:274px}
  body.sidebar-open .sidebar-nav{transform:none}
  body.sidebar-open .sidebar-overlay{opacity:1;visibility:visible}
  .app-main{margin-left:0}
  .mobile-menu-btn{display:flex}
  .app-topbar{padding:0 18px}
  .page-shell{width:min(100% - 28px,1420px);margin-top:20px}
  .hero,.lesson-layout{grid-template-columns:1fr}
  .sidebar{position:static;max-height:none}
  .auth-grid{grid-template-columns:1fr;max-width:620px;margin:0 auto}
  .auth-brand-panel{display:none}
}
@media(max-width:720px){
  .grid.cols-4,.grid.cols-3,.grid.cols-2,.form-grid{grid-template-columns:1fr}
  .hero{padding:24px;border-radius:23px}
  .hero h1{font-size:34px}
  .section-title{align-items:flex-start}
  .section-title h1{font-size:26px}
  .topbar-chip{display:none}
  .page-shell{width:min(100% - 18px,1420px)}
  .card{padding:17px;border-radius:18px}
  .public-topbar{padding:0 13px}
  .public-brand small{display:none}
  .public-shell{width:min(100% - 20px,1420px)}
  .login-shell{padding:24px 0 44px}
  .login-card{padding:23px!important}
  .certificate{padding:32px 22px;min-height:650px}
  .certificate::before{inset:10px}
  .certificate h1{font-size:37px}
  .certificate .name{font-size:25px}
  .certificate .course-name{font-size:21px}
}
@media print{
  .sidebar-nav,.app-topbar,.public-topbar,.footer,.print-hide,.admin-nav,.sidebar-overlay{display:none!important}
  .app-main{margin-left:0!important}
  .page-shell{width:100%;margin:0}
  .certificate{min-height:100vh;box-shadow:none;border:0;border-radius:0}
  body{background:#fff}
}