:root{box-sizing:border-box;--blue:#0757b8;--deep:#123d92;--line:#d7e4f1;--ink:#133274}*,*:before,*:after{box-sizing:inherit}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:#f7fbff}.top{height:170px;display:grid;grid-template-columns:330px minmax(360px,1fr) minmax(520px,1.45fr);gap:26px;align-items:center;padding:10px 28px;background:linear-gradient(110deg,#fff 0 48%,#f3f8ff 55%,#b9e2fa)}.logo{min-width:0}.cis-logo{width:330px;height:142px;object-fit:contain}.divider{display:none}.title{font-size:48px;font-weight:700;color:var(--blue);line-height:.95}.title em{color:#ed2339;font-family:cursive;font-weight:500}.title small{display:block;font-size:29px;font-weight:400;margin-top:7px}.tag{font-size:14px;letter-spacing:6px;white-space:nowrap;margin-top:18px}.aerial{height:170px;position:relative;overflow:hidden}.aerial img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.aerial:after{content:'CIS BRATISLAVA';position:absolute;right:20px;bottom:14px;color:#fff;font-weight:700;letter-spacing:2px;text-shadow:0 2px 4px #123d92}.nav{height:58px;display:flex;background:#fff;border-bottom:1px solid var(--line)}.nav button{flex:1;border:0;border-right:1px solid var(--line);font-weight:700;font-size:16px;color:var(--ink);cursor:pointer}.nav button.home{flex:0 0 128px;background:var(--blue);color:#fff}.nav button:nth-child(n+2):nth-child(-n+5){background:#fff3b8}.nav button:nth-child(n+6):nth-child(-n+8){background:#eef0ff}.nav button:nth-child(n+9):nth-child(-n+11){background:#e0f5eb}.nav button.active{background:#2d70c9!important;color:#fff!important;border-bottom:5px solid var(--deep)}.nav button.sync{flex:1.4;background:#b9e2fa;color:var(--deep);min-width:280px}main{padding:20px 28px;max-width:1540px;margin:auto}.hero{display:flex;align-items:center;gap:20px;min-height:98px;padding:12px 20px;border-radius:7px;background:linear-gradient(100deg,#f1f1ff,#fff);margin-bottom:12px}.hero h1{margin:0;font-size:42px;color:var(--deep)}.hero p{margin:2px 0;font-size:25px;color:var(--deep)}.hero .meta{margin-left:auto;font-size:17px;color:var(--deep)}.layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:24px}.card{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 4px 15px #15518c10;overflow:hidden}.tabs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));background:#e9f5ff}.tabs button{min-height:74px;border:0;border-right:1px solid #c7dbec;background:#e9f5ff;color:var(--blue);font-size:18px;font-weight:700;cursor:pointer}.tabs button.active{background:#0860c7;color:#fff}.tabs button b,.tabs button small{display:block}.tabs button small{font-size:14px;font-weight:400;margin-top:4px}.sheet-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:#fff}.status{background:#fff7da;border:1px solid #dfe2e7;padding:9px 20px;border-radius:6px;font-weight:700}table{width:100%;border-collapse:collapse;font-size:16px}th{background:#e7f4ff;padding:11px 8px;color:var(--blue);border:1px solid #d1e2ef}td{padding:10px 8px;border:1px solid #dbe6ef;text-align:center}td.name{text-align:left;font-weight:600}select{border:1px solid #b9cad8;border-radius:4px;padding:5px;width:60px;color:var(--ink);font-weight:700;background:#fff}.side .card{margin-bottom:12px}.side h3{margin:0;padding:13px 18px;background:#e3f3ff;color:var(--blue);font-size:20px}.side .inside{padding:16px}.progress{height:110px;width:110px;border:12px solid #ddd;border-left-color:var(--blue);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:25px;font-weight:700;margin:auto}.metric{text-align:center;margin:12px 0}.internal-card{padding:16px}.internal{display:inline-flex;gap:7px;background:#fff2dd;color:#9a5b00;padding:7px 10px;border-radius:6px;font-size:12px;font-weight:700}.teacher-add{display:flex;gap:8px;flex-wrap:wrap}.teacher-add input,.teacher-add select{width:auto;padding:10px}.teacher-add input{flex:1;min-width:170px}.action{display:block;width:100%;padding:13px;margin:10px 0;border:0;border-radius:7px;font-size:16px;font-weight:700;cursor:pointer}.ready{background:#daf5e8;color:#158452}.footer{padding:18px 34px;border-top:1px solid var(--line);margin-top:20px;color:#2360b6;font-weight:700;display:flex;justify-content:space-between}@media(max-width:1100px){.top{grid-template-columns:280px 1fr;height:166px}.aerial{display:none}.nav{overflow:auto}.nav button{white-space:nowrap;padding:0 12px}main{padding:16px}.layout{grid-template-columns:1fr}.hero{flex-wrap:wrap}.hero .meta{margin-left:0}}