:root{--navy:#173457;--coral:#ff7466;--mint:#35bd91;--yellow:#f7c857;--purple:#9c8ae4;--cream:#fffaf0;--line:#eee4d3;--shadow:0 8px 28px #45341916}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--navy);font-family:Nunito,system-ui,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}.loader{min-height:100vh;display:grid;place-items:center;font-size:22px;font-weight:900}.login{min-height:100vh;display:grid;place-items:center;padding:25px;background:radial-gradient(circle at 15% 20%,#fff0b5,transparent 30%),radial-gradient(circle at 90% 80%,#dff6ed,transparent 30%),var(--cream)}.login-card{width:min(900px,100%);display:grid;grid-template-columns:1fr 1fr;background:#fff;border-radius:28px;overflow:hidden;box-shadow:0 25px 70px #45341922}.login-art{background:linear-gradient(160deg,#fff0b5,#ffe1db);display:grid;place-items:center;text-align:center;padding:50px}.login-art i{font-size:90px;font-style:normal}.login-art h1{font-size:40px;margin:8px}.login-art em{color:var(--coral);font-style:normal}.login-form{padding:55px}.login-form h2{font-size:28px;margin:8px 0}.login-form p{color:#847c72;font-size:13px}.login-form label,.modal label{display:grid;gap:6px;margin:15px 0;font-size:12px;font-weight:800}input,select,textarea{border:1px solid #ddd4c6;border-radius:11px;padding:11px;background:#fff;color:var(--navy);outline:none}input:focus,select:focus,textarea:focus{border-color:var(--mint);box-shadow:0 0 0 3px #dff5ed}.primary{border:0;background:linear-gradient(135deg,#ff806a,var(--coral));color:#fff;border-radius:12px;padding:12px 18px;font-weight:900;box-shadow:0 6px 15px #ff746638}.login-form .primary{width:100%}.demo{font-size:10px;background:#fff9e6;border-radius:12px;padding:12px;margin-top:17px;display:grid}.error{color:#b83e35;background:#fff0ed;padding:9px;border-radius:9px;font-size:12px}.shell{min-height:100vh;display:flex}.side{width:250px;position:fixed;inset:0 auto 0 0;background:#fffdf7;border-right:1px solid var(--line);padding:23px 17px;display:flex;flex-direction:column;z-index:5}.brand{border:0;background:none;text-align:left;color:var(--navy);font-weight:950;font-size:27px;line-height:.9;padding:8px 14px 26px}.brand em{font-style:normal;color:var(--coral)}.side nav{display:grid;gap:7px}.side nav button{border:0;background:none;text-align:left;border-radius:14px;padding:13px 15px;color:var(--navy);font-weight:850;display:flex;gap:11px}.side nav button.active{background:var(--coral);color:#fff;box-shadow:0 7px 15px #ff746642}.logout{margin-top:auto;border:1px solid var(--line);background:#fff;padding:10px;border-radius:11px;color:#796f64}.work{margin-left:250px;width:calc(100% - 250px);padding:24px 30px 45px}.top{display:flex;justify-content:space-between;align-items:center;min-height:85px}.top h1{font-size:30px;margin:5px 0}.top small,.muted{color:#837b71}.profile{background:#fff;border:1px solid var(--line);padding:10px 14px;border-radius:999px;font-weight:800}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:21px}.card h2{margin:0 0 14px}.stat{font-size:36px;font-weight:950;color:var(--mint)}.progress{height:10px;border-radius:99px;background:#eeece7;overflow:hidden}.progress i{display:block;height:100%;background:var(--mint)}.student{display:grid;grid-template-columns:46px 1fr auto;gap:10px;align-items:center;border-bottom:1px solid #eee8dd;padding:10px 0}.avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:#dff6ed;font-style:normal;font-weight:950}.student small,.student b{display:block}.student strong{color:var(--mint)}.activity{font-size:12px;padding:10px 0;border-bottom:1px solid #eee8dd}.activity b{display:block}.tag{display:inline-block;background:#e2f6ee;color:#16825f;border-radius:99px;padding:5px 8px;font-size:9px;font-weight:900}.tag.bad{background:#fff0cb;color:#a36b00}.pagehead{display:flex;justify-content:space-between;align-items:end;margin:16px 0 22px}.pagehead h2{font-size:31px;margin:3px 0}.eyebrow{color:var(--coral);font-size:10px;letter-spacing:1.7px;font-weight:950}.students,.rewards,.units{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.student-card{text-align:center}.student-card .avatar{width:75px;height:75px;margin:auto;font-size:28px}.numbers{display:flex;justify-content:space-around;margin:17px 0}.numbers b,.numbers small{display:block}.outline{border:1px dashed var(--purple);color:#6655ad;background:#fff;border-radius:11px;padding:10px 13px;font-weight:850}.lesson{display:grid;grid-template-columns:1fr 320px;gap:18px}.banner{background:#e4f6ef;border-radius:15px;padding:16px;font-size:21px;font-weight:900}.unit-edit{display:grid;grid-template-columns:35px 1fr 70px 30px;gap:9px;align-items:center;padding:9px 0;border-bottom:1px solid #eee8dd}.unit-edit span{width:30px;height:30px;border-radius:50%;background:#dff6ed;display:grid;place-items:center}.unit-edit button,.iconbtn{border:0;background:none;color:var(--coral)}.addrow{display:flex;gap:8px;margin-top:15px}.addrow input{flex:1}.toolbar{display:flex;gap:7px;overflow:auto;margin-bottom:15px}.toolbar button{border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:99px;white-space:nowrap}.toolbar .active{background:var(--navy);color:#fff}.question{display:grid;grid-template-columns:42px 1fr auto;gap:13px;align-items:center;margin-bottom:11px}.question>span{width:38px;height:38px;display:grid;place-items:center;background:#fff0bd;border-radius:12px;font-weight:950}.question h3{font-size:15px;margin:8px 0 3px}.question p{font-size:11px;margin:0;color:#81786e}.actions{display:flex;gap:5px}.actions button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px;font-size:10px}.tablebox{overflow:auto;padding:0}table{width:100%;border-collapse:collapse;font-size:12px}th,td{padding:12px;text-align:left;border-bottom:1px solid #eee8dd}th{background:#fff9e8}.wrong{color:var(--coral);font-weight:800}.reward{text-align:center;position:relative}.reward i{width:100px;height:100px;border-radius:50%;display:grid;place-items:center;margin:auto;background:#fff0b7;border:8px double #ffd96d;font-size:50px;font-style:normal}.reward.locked{filter:grayscale(1);opacity:.45}.reward.locked:after{content:"🔒";position:absolute;top:65px;left:calc(50% - 14px);font-size:26px}.unit{border:1px solid var(--line);background:#fff;border-radius:18px;padding:18px;display:grid;grid-template-columns:50px 1fr;color:var(--navy);text-align:left}.unit>span{width:45px;height:45px;border-radius:50%;background:#fff0b7;display:grid;place-items:center;font-weight:950}.unit h3{margin:3px 0}.unit p{font-size:11px}.unit.locked{opacity:.45;filter:grayscale(1)}.quiz{max-width:760px;margin:auto}.quiz .answers{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}.answers button{border:2px solid #eae2d7;background:#fff;padding:15px;border-radius:13px;color:var(--navy);font-weight:800}.answers button.picked{border-color:var(--purple);background:#f1edff}.feedback{padding:11px;background:#fff0c9;border-radius:11px;margin-bottom:12px}.feedback.good{background:#dff6ed;color:#14815e}.modalbg{position:fixed;inset:0;background:#173457aa;display:grid;place-items:center;padding:22px;z-index:30}.modal{width:min(700px,100%);max-height:94vh;overflow:auto;background:#fff;border-radius:21px;padding:28px;position:relative}.modal textarea{min-height:80px}.close{position:absolute;right:16px;top:10px;border:0;background:none;font-size:28px}.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}.opts{display:grid;gap:8px}.opts div{display:grid;grid-template-columns:1fr 20px;gap:7px}.modalfoot{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.preview{max-width:180px;max-height:110px;border-radius:10px}.modal.square{aspect-ratio:1/1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.modal.square .modalfoot{justify-content:center;width:100%;margin-top:auto}
.profile-xp{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);padding:8px 16px;border-radius:999px}
.streak-badge{background:linear-gradient(135deg,#ff9a44,#ff6b35);color:#fff;padding:6px 12px;border-radius:999px;font-weight:900;font-size:14px;box-shadow:0 3px 12px #ff6b3544;animation:streak-pulse 2s ease-in-out infinite}
@keyframes streak-pulse{0%,100%{box-shadow:0 3px 12px #ff6b3544}50%{box-shadow:0 3px 20px #ff6b3588}}
.level-badge{display:flex;align-items:center;gap:8px}
.level-icon{font-size:24px;font-style:normal;width:36px;height:36px;display:grid;place-items:center;background:#fff0b7;border-radius:50%;border:2px solid #ffd96d}
.level-detail{display:flex;flex-direction:column;gap:2px}
.level-detail small{font-weight:800;font-size:11px;color:var(--navy)}
.xp-bar{height:8px;border-radius:99px;background:#eeece7;overflow:hidden;min-width:80px}
.xp-fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--purple),#c084fc);transition:width 0.6s ease}
.xp-text{color:#837b71;font-weight:700;font-size:10px!important}
.hero-stats{display:flex;gap:20px;margin:20px 0 16px;flex-wrap:wrap}
.hero-stat{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,0.7);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.8);border-radius:16px;padding:14px 18px}
.hero-stat-icon{font-size:32px;font-style:normal}
.hero-stat b{display:block;font-size:15px}
.hero-stat small{display:block;color:#837b71;font-size:11px}
.streak-fire{animation:fire-bounce 1s ease-in-out infinite}
@keyframes fire-bounce{0%,100%{transform:scale(1)}50%{transform:scale(1.15)}}
.levelup-banner{background:linear-gradient(135deg,#fff0b7,#ffe4dd);border:2px solid #ffd96d;border-radius:14px;padding:12px 18px;margin:8px 0 12px;font-weight:900;font-size:14px;animation:levelup-glow 1.5s ease-in-out infinite}
.levelup-banner span{display:block;font-size:11px;letter-spacing:1.5px;color:var(--coral);margin-bottom:4px}
@keyframes levelup-glow{0%,100%{box-shadow:0 0 8px #ffd96d44}50%{box-shadow:0 0 24px #ffd96d88}}
@media(max-width:1050px){.grid{grid-template-columns:1fr 1fr}.students,.rewards{grid-template-columns:1fr 1fr}.lesson{grid-template-columns:1fr}}
@media(max-width:720px){.side{top:auto;bottom:0;width:100%;height:68px;padding:6px 8px;border-top:1px solid var(--line)}.brand,.logout{display:none}.side nav{display:flex;justify-content:space-around}.side nav button{flex-direction:column;gap:0;padding:5px;font-size:9px}.work{margin:0;width:100%;padding:12px 13px 85px}.top h1{font-size:21px}.profile{font-size:10px}.profile-xp{padding:6px 10px;gap:8px;font-size:10px}.level-icon{width:28px;height:28px;font-size:18px}.xp-bar{min-width:50px}.hero-stats{flex-direction:column;gap:10px}.grid,.students,.rewards,.units{grid-template-columns:1fr}.question{grid-template-columns:36px 1fr}.actions{grid-column:2}.two,.quiz .answers{grid-template-columns:1fr}.login-card{grid-template-columns:1fr}.login-art{display:none}.login-form{padding:35px 25px}}