:root{--navy:#17355d;--blue:#1768db;--sky:#eaf6ff;--orange:#ff8a28;--green:#20a96b;--red:#d94b55;--ink:#20324d;--muted:#687993;--line:#dce6f2;--card:#fff;--shadow:0 16px 40px rgba(23,53,93,.09)}
*{box-sizing:border-box}html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;background:#f6f9fd;color:var(--ink)}body{margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 15% 15%,#fff1b8,transparent 30%),radial-gradient(circle at 90% 8%,#c9f7df,transparent 28%),linear-gradient(145deg,#eaf7ff,#fff)}.login-card{width:min(460px,100%);padding:34px;border-radius:28px;background:rgba(255,255,255,.94);box-shadow:0 28px 80px rgba(23,53,93,.16)}.brand{display:flex;gap:12px;align-items:center;font-weight:900;color:var(--navy)}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:15px;color:#fff;background:linear-gradient(135deg,var(--orange),#ffc142);font-size:24px}.brand small{display:block;color:var(--muted);font-weight:700}.login-card h1{margin:32px 0 8px;font-size:32px}.muted,.hint{color:var(--muted)}label{display:grid;gap:7px;margin:16px 0 0;font-weight:800;font-size:14px}input,select,textarea{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink)}textarea{min-height:86px;resize:vertical}input:focus,select:focus,textarea:focus{outline:3px solid rgba(23,104,219,.14);border-color:var(--blue)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:11px 15px;background:var(--blue);color:#fff;font-weight:850;cursor:pointer}.btn:hover{filter:brightness(.96)}.btn.secondary{background:#eaf2ff;color:var(--blue)}.btn.warning{background:#fff0df;color:#b85b09}.btn.small{padding:8px 11px;font-size:13px}.btn.full{width:100%;margin-top:22px}.app-shell{min-height:100vh}.topbar{height:72px;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:0 24px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(12px)}.sidebar{position:fixed;inset:72px auto 0 0;width:250px;padding:20px 14px;background:var(--navy);color:#dce9fa;overflow:auto}.sidebar a{display:flex;align-items:center;gap:11px;padding:12px 14px;border-radius:12px;font-weight:750}.sidebar a:hover,.sidebar a.active{background:rgba(255,255,255,.12);color:#fff}.nav-label{margin:20px 14px 8px;color:#94abd0;font-size:11px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}.content{margin-left:250px;padding:30px;max-width:1500px}.page-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:24px}.page-head h1{margin:0;font-size:clamp(28px,4vw,42px);color:var(--navy)}.eyebrow{margin:0 0 6px;color:var(--orange);font-size:12px;font-weight:950;letter-spacing:.12em;text-transform:uppercase}.grid{display:grid;gap:18px}.stats{grid-template-columns:repeat(4,minmax(0,1fr))}.stat,.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.stat{padding:20px}.stat strong{display:block;margin-top:8px;font-size:34px;color:var(--navy)}.stat small{color:var(--muted);font-weight:800}.panel{padding:22px;margin-bottom:20px}.panel h2,.panel h3{margin:0;color:var(--navy)}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.split{grid-template-columns:1.45fr .8fr}.notice-list{display:grid;gap:10px}.notice{display:flex;justify-content:space-between;gap:12px;padding:13px;border-radius:14px;background:#f7faff}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;background:#edf3fb;color:#516783;font-size:12px;font-weight:900}.badge.green{background:#def7e9;color:#17784b}.badge.orange{background:#fff0dc;color:#ad5a0b}.badge.red{background:#ffe4e7;color:#a52f3b}.flash{padding:13px 16px;margin-bottom:16px;border-radius:13px;font-weight:800}.flash.success{background:#def7e9;color:#146b44}.flash.error{background:#ffe4e7;color:#9e2e39}.day-tabs{display:flex;gap:8px;overflow:auto;padding-bottom:6px}.day-tabs a{white-space:nowrap;padding:10px 15px;border-radius:12px;background:#edf3fb;color:#56708f;font-weight:850}.day-tabs a.active{background:var(--blue);color:#fff}.schedule-wrap{overflow:auto}.schedule{width:100%;border-collapse:separate;border-spacing:7px;min-width:760px}.schedule th{padding:10px;color:var(--muted);font-size:12px}.schedule td{min-width:120px;padding:0}.schedule .coach{min-width:170px;padding:14px;border-radius:14px;background:#f2f6fb;font-weight:900}.capacity{width:100%;min-height:76px;border:0;border-radius:14px;padding:10px;background:#ebf4ff;color:var(--blue);cursor:pointer}.capacity strong{display:block;font-size:20px}.capacity.full{background:#fff0df;color:#a9580d}.capacity.open{background:#e5f8ef;color:#187b4f}.slot-panel{padding:18px;margin-top:14px;border:2px solid #cfe2fb;border-radius:18px;background:#f8fbff}.slot-panel[hidden]{display:none}.student-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}.student-row:last-child{border:0}.student-main{display:flex;gap:11px;align-items:center}.avatar{display:grid;place-items:center;width:40px;height:40px;border-radius:13px;background:linear-gradient(135deg,#dcecff,#fff1c8);color:var(--navy);font-weight:950}.actions{display:flex;gap:8px;flex-wrap:wrap}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.form-grid .wide{grid-column:1/-1}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}.data-table th{color:var(--muted);font-size:12px}.profile-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.profile-item{padding:14px;border-radius:14px;background:#f6f9fd}.profile-item small{display:block;color:var(--muted);margin-bottom:5px}.mobile-menu{display:none;border:0;background:none;font-size:24px}.top-actions{display:flex;align-items:center;gap:12px}.empty{padding:24px;text-align:center;color:var(--muted);background:#f8fafc;border-radius:14px}.audit-json{max-width:320px;white-space:pre-wrap;font-size:11px;color:var(--muted)}
@media(max-width:1000px){.stats{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr}.sidebar{transform:translateX(-105%);transition:.2s}.menu-open .sidebar{transform:none}.content{margin-left:0;padding:22px}.mobile-menu{display:block}}
@media(max-width:650px){.topbar{height:64px;padding:0 14px}.sidebar{inset-top:64px}.content{padding:18px 13px}.stats,.profile-grid,.form-grid{grid-template-columns:1fr}.page-head{align-items:start;flex-direction:column}.panel{padding:16px;border-radius:17px}.schedule-wrap{overflow:visible}.schedule{display:none}.mobile-board{display:grid!important;gap:12px}.mobile-coach{padding:15px;border:1px solid var(--line);border-radius:16px;background:#fff}.mobile-slots{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:10px}.mobile-slots .capacity{min-height:64px}.student-row{align-items:flex-start;flex-direction:column}.actions{width:100%}.actions .btn{flex:1}.top-actions span{display:none}}
@media(min-width:651px){.mobile-board{display:none!important}}
.filter-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px;align-items:end}.assignment-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.assignment-card{padding:22px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(145deg,#fff,#f0f8ff);box-shadow:var(--shadow)}.assignment-card h2{color:var(--navy);margin:14px 0 4px}.assignment-score{display:flex;align-items:end;justify-content:space-between;margin-top:18px;padding:14px;border-radius:16px;background:#fff}.assignment-score strong{font-size:34px;color:var(--blue)}.assignment-score small{color:var(--muted)}
.exercise{max-width:760px;margin:0 auto;padding:20px}.exercise-top{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:14px}.progress{height:12px;margin:18px 0;border-radius:99px;background:#dce8f7;overflow:hidden}.progress i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--orange),#ffd45b)}.question-stage{min-height:310px;display:grid;place-items:center;padding:28px;border-radius:28px;background:linear-gradient(145deg,#eaf6ff,#fff7d7);text-align:center}.question-number{color:var(--muted);font-weight:900}.question-rows{min-height:220px;display:flex;flex-direction:column;justify-content:center;align-items:flex-end}.flash-row{min-width:180px;text-align:right;font-size:clamp(40px,8vw,72px);line-height:1.08;font-weight:950;color:var(--navy);font-variant-numeric:tabular-nums}.equation-card{padding:30px;border-radius:22px;background:#fff;font-size:clamp(40px,7vw,68px);font-weight:950;color:var(--navy);box-shadow:var(--shadow)}.flash-done .question-rows{visibility:hidden}.answer-card{margin-top:18px;padding:20px;border-radius:22px;background:#fff;box-shadow:var(--shadow)}.big-answer{font-size:34px;text-align:center;font-weight:900}.answer-split{display:grid;grid-template-columns:1fr 1fr;gap:12px}.answer-split input{font-size:28px;text-align:center}.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.keypad button{min-height:58px;border:0;border-radius:16px;background:#edf5ff;color:var(--navy);font-size:24px;font-weight:900}.result-hero{text-align:center;padding:44px 24px;border-radius:28px;background:linear-gradient(145deg,#fff3bf,#dcf8eb);margin-bottom:20px}.result-hero h1{font-size:42px;color:var(--navy)}.result-score{font-size:76px;font-weight:950;color:var(--blue)}
@media(max-width:900px){.filter-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.exercise{padding:8px}.question-stage{min-height:270px;padding:18px}.answer-card{padding:14px}.keypad button{min-height:64px}.assignment-cards{grid-template-columns:1fr}.exercise-top{font-size:12px}.filter-grid{grid-template-columns:1fr 1fr}}
.answer-card .keypad{display:none}.answer-card.keypad-open .keypad{display:grid}
@media(max-width:650px){body:has(.exercise){overflow:hidden}.content:has(.exercise){padding:8px}.exercise{height:calc(100dvh - 80px);padding:0 0 84px;overflow:hidden}.exercise-top{min-height:34px}.progress{margin:8px 0}.question-stage{height:calc(100dvh - 198px);min-height:0;padding:12px;border-radius:20px}.question-rows{min-height:0}.answer-card{position:fixed;z-index:40;left:8px;right:8px;bottom:max(8px,env(safe-area-inset-bottom));margin:0;padding:10px;border:1px solid var(--line)}.answer-card:not(.keypad-open) .btn{display:none}.answer-card.keypad-open{max-height:calc(100dvh - 78px);overflow:auto}.answer-card.keypad-open .btn{margin-top:10px}.big-answer{height:58px;font-size:28px}.answer-split label{margin:0}.answer-split input{height:54px;font-size:24px}.keypad{gap:7px;margin-top:8px}.keypad button{min-height:48px;border-radius:12px;font-size:21px}}