@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Montserrat:wght@600;700;800&display=swap');
:root{--slate-900:#0f172a;--slate-800:#1e293b;--slate-700:#334155;--slate-600:#475569;--slate-400:#94a3b8;--slate-300:#cbd5e1;--slate-200:#e2e8f0;--slate-100:#f1f5f9;--slate-50:#f8fafc;--blue-700:#1d4ed8;--blue-600:#2563eb;--blue-50:#eff6ff;--ok:#047857;--ok-bg:#d1fae5;--warn:#92400e;--warn-bg:#fef3c7;--bad:#b91c1c;--bad-bg:#fee2e2;--font-heading:Montserrat,Arial,sans-serif;--font-body:Inter,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--slate-50);color:var(--slate-900);font-family:var(--font-body);line-height:1.6}h1,h2,h3{font-family:var(--font-heading);letter-spacing:-.02em;line-height:1.3;margin:0;color:var(--slate-900)}h1{font-size:clamp(1.7rem,4vw,2.25rem)}h2{font-size:1.25rem}h3{font-size:1.05rem}p{margin:.3rem 0}a{color:var(--blue-600)}:focus-visible{outline:3px solid #f59e0b;outline-offset:3px}.skip-link{background:#fff;color:var(--slate-900);left:1rem;padding:.7rem 1rem;position:fixed;top:-5rem;z-index:10}.skip-link:focus{top:1rem}
.app{display:flex;min-height:100vh}.side{background:var(--slate-900);color:var(--slate-300);display:flex;flex:0 0 272px;flex-direction:column;gap:28px;padding:28px 20px}.brand{color:#fff;font:800 1.4rem var(--font-heading);text-decoration:none}.nav{display:flex;flex-direction:column;gap:4px}.nav-label{color:var(--slate-400);font-size:.72rem;font-weight:600;letter-spacing:.16em;padding:12px 14px 6px;text-transform:uppercase}.nav a{border-radius:10px;color:var(--slate-300);font-size:.94rem;font-weight:500;padding:11px 14px;text-decoration:none}.nav a:hover,.nav a.on{background:rgb(59 130 246 / .18);color:#fff}.user{border-top:1px solid var(--slate-700);display:flex;gap:12px;margin-top:auto;padding-top:18px}.avatar{align-items:center;background:var(--blue-600);border-radius:50%;color:#fff;display:flex;font-weight:700;height:40px;justify-content:center;width:40px}.user b{color:#fff;display:block;font-size:.9rem}.user span{color:var(--slate-400);font-size:.8rem}.main{display:flex;flex:1;flex-direction:column;gap:28px;min-width:0;padding:36px 48px 56px}.top{align-items:flex-end;display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}.eyebrow{color:var(--blue-600);display:block;font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase}.lead,.muted,.small{color:var(--slate-600)}.small{font-size:.82rem}.crumbs{color:var(--slate-600);font-size:.875rem;margin-bottom:8px}.crumbs a{color:inherit}.card,.course-summary,.action-panel,.form-panel,.quiz-intro,.quiz-result{background:#fff;border:1px solid var(--slate-200);border-radius:16px;box-shadow:0 1px 3px rgb(0 0 0 / .06);padding:24px}.g2,.g3{display:grid;gap:20px}.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.g3{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.split{align-items:flex-start;display:flex;flex-wrap:wrap;gap:24px}.grow{flex:999 1 520px;min-width:0}.rail{flex:1 1 280px}.stack{display:flex;flex-direction:column;gap:16px}.row,.actions{align-items:center;display:flex;flex-wrap:wrap;gap:12px}.card-head{align-items:center;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}.stat b{display:block;font:800 2rem var(--font-heading)}.ico{align-items:center;background:var(--blue-50);border-radius:12px;color:var(--blue-600);display:flex;font-size:1.35rem;height:48px;justify-content:center;width:48px}.btn,button{align-items:center;background:var(--blue-600);border:1px solid var(--blue-600);border-radius:999px;color:#fff;cursor:pointer;display:inline-flex;font:600 .94rem var(--font-body);justify-content:center;min-height:44px;padding:10px 20px;text-decoration:none}.btn:hover,button:hover{background:var(--blue-700);color:#fff}.btn-ghost{background:#fff;color:var(--slate-900);border-color:var(--slate-300)}.btn-sm{font-size:.85rem;min-height:38px;padding:7px 15px}.btn-block{width:100%}.chip,.status{background:var(--slate-100);border-radius:999px;color:var(--slate-700);display:inline-block;font-size:.8rem;font-weight:600;padding:3px 10px}.chip-blue{background:var(--blue-50);color:var(--blue-700)}.chip-ok,.status-done{background:var(--ok-bg);color:var(--ok)}.chip-warn,.status-pending{background:var(--warn-bg);color:var(--warn)}.prog{background:var(--slate-200);border-radius:999px;height:8px;overflow:hidden}.prog span{background:var(--blue-600);display:block;height:100%}.list,.step-list,.history-list{list-style:none;margin:0;padding:0}.item,.step-list>li,.history-list>li{align-items:center;border-top:1px solid var(--slate-200);display:flex;flex-wrap:wrap;gap:14px;padding:16px 0}.item:first-child,.step-list>li:first-child,.history-list>li:first-child{border-top:0}.step-title{font-weight:700}.step-detail{color:var(--slate-600);margin:.2rem 0}.field{display:flex;flex-direction:column;gap:6px}label{font-size:.9rem;font-weight:600}input:not([type=radio]):not([type=checkbox]),textarea,select{background:#fff;border:1px solid var(--slate-300);border-radius:10px;color:var(--slate-900);font:inherit;min-height:46px;padding:10px 13px;width:100%}textarea{min-height:140px}.quiz-option{align-items:center;border:1px solid var(--slate-300);border-radius:12px;display:flex;font-weight:400;gap:12px;margin:.6rem 0;padding:13px}.quiz-option:has(input:checked){background:var(--blue-50);border-color:var(--blue-600)}fieldset{border:0;margin:0 0 20px;padding:0}legend{font-weight:700;margin-bottom:8px}.notice,.alert,.msg{border-radius:12px;display:block;margin:0;padding:14px 18px}.notice,.alert-info,.msg{background:var(--blue-50);color:#1e3a8a}.msg.error,.alert-bad{background:var(--bad-bg);color:var(--bad)}.submission-text{background:var(--slate-50);border-radius:10px;padding:16px;white-space:pre-wrap}.attachment-list{display:flex;gap:8px;list-style:none;padding:0}.attachment-list a{border:1px solid var(--slate-300);border-radius:99px;padding:3px 8px}.tbl-wrap{overflow-x:auto}table{border-collapse:collapse;min-width:620px;width:100%}th,td{border-bottom:1px solid var(--slate-200);padding:13px;text-align:left}th{background:var(--slate-50);color:var(--slate-600);font-size:.78rem;text-transform:uppercase}.auth{display:flex;min-height:100vh}.auth-hero{background:radial-gradient(ellipse at 70% 20%,#16315f,#0f172a 55%,#020617);color:#fff;display:flex;flex:1 1 520px;flex-direction:column;gap:48px;justify-content:center;padding:56px 64px}.auth-hero h2{color:#fff;font-size:2.2rem;max-width:18ch}.auth-hero p{color:var(--slate-300);max-width:42ch}.auth-form{align-items:center;background:#fff;display:flex;flex:1 1 480px;justify-content:center;padding:48px 32px}.auth-box{display:flex;flex-direction:column;gap:22px;max-width:400px;width:100%}.auth-foot{color:var(--slate-600);font-size:.8rem;text-align:center}@media(max-width:820px){.app{flex-wrap:wrap}.side{flex:1 1 100%;gap:14px;padding:18px}.nav{flex-direction:row;flex-wrap:wrap}.nav-label{display:none}.user{display:none}.main{padding:24px 18px 40px}.auth-hero{padding:36px 24px}.auth-hero h2{font-size:1.7rem}}