:root{--navy:#0c4a83;--blue:#0984c6;--cyan:#20b8ca;--ink:#17324d;--muted:#6a7f92;--bg:#f2f7fb;--card:#fff;--line:#dbe7f0;--good:#168a63;--warn:#b87912;--bad:#b74848;--shadow:0 10px 28px rgba(21,72,110,.08)}*{box-sizing:border-box}html{font-family:Tahoma,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--bg)}body{margin:0}.topbar{height:76px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:8px 24px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand img{width:64px;height:58px;object-fit:contain;border-radius:8px}.brand span{display:flex;flex-direction:column}.brand small{color:var(--muted);margin-top:3px}.top-user{display:flex;gap:14px;align-items:center}.top-user a{color:var(--blue);text-decoration:none}.mobile-menu{display:none;border:0;background:#eef6fb;padding:8px 12px;border-radius:8px}.app-shell{display:grid;grid-template-columns:245px 1fr;min-height:calc(100vh - 116px)}.sidebar{background:linear-gradient(180deg,#0b4b83,#0b365f);padding:20px 12px}.sidebar nav{position:sticky;top:95px}.sidebar a{display:block;color:#e9f7ff;text-decoration:none;padding:11px 13px;border-radius:9px;margin:3px 0;font-size:14px}.sidebar a:hover{background:#ffffff18}.sidebar hr{border:0;border-top:1px solid #ffffff2c;margin:12px}.content{padding:26px;max-width:1500px;width:100%;margin:auto}.footer{padding:13px;text-align:center;background:#fff;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}h1{font-size:28px;margin:0 0 7px}h2{font-size:21px;margin:25px 0 13px}h3{font-size:17px}.lead{color:var(--muted);margin-top:4px}.hero{background:linear-gradient(120deg,#0a4b83,#0b86c5 62%,#38b9c8);color:white;border-radius:18px;padding:28px;display:grid;grid-template-columns:1fr 250px;overflow:hidden;box-shadow:var(--shadow)}.hero img{width:230px;max-height:160px;object-fit:contain;background:#fff;border-radius:16px;padding:9px}.hero h1{font-size:32px}.hero p{opacity:.94;line-height:1.9}.progress{height:12px;background:#d9e8f2;border-radius:20px;overflow:hidden}.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--blue));border-radius:20px}.grid{display:grid;gap:16px}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.stat-card,.card{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:15px;padding:17px}.stat-card{display:flex;align-items:center;gap:14px}.stat-icon{font-size:27px;width:47px;height:47px;display:grid;place-items:center;background:#edf8fc;border-radius:13px}.stat-card small,.stat-card span{display:block;color:var(--muted)}.stat-card strong{display:block;font-size:26px;margin:2px 0}.module-card{display:flex;flex-direction:column;gap:10px}.module-tag{font-size:11px;background:#e8f5fb;color:var(--navy);padding:5px 8px;border-radius:99px;width:max-content}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--blue);border:0;color:#fff;text-decoration:none;padding:10px 14px;border-radius:9px;cursor:pointer;font-weight:700}.btn.secondary{background:#eaf5fb;color:var(--navy)}.btn.good{background:var(--good)}.btn.warn{background:var(--warn)}.btn.outline{background:#fff;color:var(--navy);border:1px solid #bed7e7}.btn.sm{padding:7px 10px;font-size:12px}.actions{display:flex;gap:8px;flex-wrap:wrap}.material-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.material{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.material .preview{height:180px;background:#eaf2f7;display:flex;align-items:center;justify-content:center}.material .preview img{width:100%;height:100%;object-fit:cover}.material .preview .typeicon{font-size:55px}.material .body{padding:13px}.material p{color:var(--muted);font-size:13px;line-height:1.7}.lesson{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px;line-height:2;white-space:pre-line}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:14px}table{width:100%;border-collapse:collapse;min-width:720px}th,td{padding:12px 13px;text-align:right;border-bottom:1px solid #edf2f6;font-size:13px}th{background:#f6fafc;color:#476478}.badge{padding:5px 9px;border-radius:99px;font-size:11px;display:inline-block}.badge.good{background:#e5f6ef;color:#087253}.badge.warn{background:#fff3d8;color:#8a5c06}.badge.bad{background:#feecec;color:#9b3333}.badge.info{background:#e8f4fb;color:#145f8c}.alert{padding:11px 14px;border-radius:10px;margin-bottom:14px}.alert.success{background:#e8f7ef;color:#126746}.alert.error{background:#fdecec;color:#902d2d}.alert.info{background:#eaf5fc;color:#135a83}.form-card{max-width:850px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px}.field{margin-bottom:14px}.field label{display:block;font-weight:700;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:11px;border:1px solid #cbdce8;border-radius:8px;font:inherit;background:#fff}.field textarea{min-height:110px}.question{background:#fff;border:1px solid var(--line);padding:18px;border-radius:14px;margin-bottom:14px}.question label.option{display:block;padding:9px 10px;background:#f7fafc;border-radius:8px;margin:7px 0;cursor:pointer}.login-page{min-height:calc(100vh - 40px);display:grid;place-items:center;padding:30px;background:radial-gradient(circle at top,#e9f8ff,#f5f8fb 55%)}.login-box{width:min(460px,100%);background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:0 20px 60px #0d4f8420}.login-box img{width:190px;height:150px;object-fit:contain;display:block;margin:auto}.login-box h1{text-align:center}.notice{padding:14px;border-right:4px solid var(--blue);background:#eef8fd;border-radius:8px}.poster{max-width:760px;width:100%;border-radius:16px;border:1px solid var(--line);display:block;margin:auto}.certificate{max-width:950px;margin:auto;background:#fff;border:12px double #0a659d;padding:55px;text-align:center;box-shadow:var(--shadow);position:relative}.certificate img{width:180px}.certificate h1{color:var(--navy);font-size:38px}.certificate .name{font-size:30px;color:#087cb5;margin:25px}.certificate .number{font-family:monospace;direction:ltr}.kpi-bar{display:grid;grid-template-columns:190px 1fr 60px;gap:10px;align-items:center;margin:10px 0}.chartbar{height:17px;background:#e8eef3;border-radius:20px;overflow:hidden}.chartbar span{display:block;height:100%;background:var(--blue)}.muted{color:var(--muted)}.center{text-align:center}.empty{padding:28px;text-align:center;color:var(--muted)}@media(max-width:1050px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3,.material-grid{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr}.hero img{display:none}}@media(max-width:760px){.mobile-menu{display:block}.top-user span{display:none}.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;top:76px;right:-270px;width:250px;bottom:0;z-index:30;transition:.25s}.nav-open .sidebar{right:0}.content{padding:16px}.grid-4,.grid-3,.grid-2,.material-grid{grid-template-columns:1fr}.hero{padding:20px}.hero h1{font-size:25px}.brand b{font-size:12px}.brand small{font-size:10px}.certificate{padding:25px;border-width:7px}}
@media print{.topbar,.sidebar,.footer,.no-print{display:none!important}.app-shell{display:block}.content{padding:0}.certificate{box-shadow:none;border-color:#0a659d}}
.ai-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:18px;align-items:start}.ai-history{position:sticky;top:95px;max-height:calc(100vh - 125px);overflow:auto}.ai-conv{display:block;text-decoration:none;color:var(--ink);padding:10px 8px;border-bottom:1px solid #edf2f6}.ai-conv:hover{background:#f5faff}.ai-conv small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.ai-chat{display:flex;flex-direction:column;gap:12px;margin:16px 0}.chat-bubble{max-width:88%;padding:15px 17px;border-radius:16px;line-height:1.9;box-shadow:var(--shadow);white-space:normal}.user-msg{margin-right:auto;background:#eaf6fd;border:1px solid #cce5f3}.assistant-msg{margin-left:auto;background:#fff;border:1px solid var(--line)}.chat-bubble>b{display:block;margin-bottom:7px;color:var(--navy)}.chat-bubble details{margin-top:12px;padding-top:9px;border-top:1px dashed #d5e2eb;font-size:12px}.chat-bubble details a{color:var(--blue)}.ai-composer{position:sticky;bottom:0;background:linear-gradient(180deg,#f2f7fb00,#f2f7fb 22%);padding:18px 0 2px;display:grid;grid-template-columns:1fr auto;gap:10px;align-items:end}.ai-composer textarea{width:100%;min-height:96px;max-height:240px;resize:vertical;padding:14px;border:1px solid #bdd5e5;border-radius:13px;font:inherit;background:#fff}.ai-composer .btn{height:48px}.option{display:block;padding:8px 0}.form-card code,.notice code{direction:ltr;display:inline-block}.card a:not(.btn){color:var(--blue)}
@media(max-width:900px){.ai-layout{grid-template-columns:1fr}.ai-history{position:static;max-height:none}.ai-composer{grid-template-columns:1fr}.chat-bubble{max-width:100%}}