:root{
  --bg:#0b0d10;--panel:#13161a;--panel2:#191d22;--panel3:#101317;--line:#2a3038;
  --text:#f3f4f6;--muted:#9aa2ad;--gold:#d2ab5d;--gold2:#f0cf83;--danger:#e06c75;
  --ok:#7cc58a;--warn:#e5b85b;--blue:#79a9e8;--shadow:0 18px 48px rgba(0,0,0,.28);
}
*{box-sizing:border-box}html{color-scheme:dark}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.45 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input,select,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}.muted{color:var(--muted)}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.shell{min-height:100vh}.topbar{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);background:rgba(11,13,16,.9);backdrop-filter:blur(16px)}
.topbar-inner{max-width:1440px;margin:auto;padding:12px 20px;display:flex;align-items:center;gap:14px}.brand{display:flex;align-items:center;gap:10px;min-width:250px}.mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;font-weight:850;color:#1a1409;background:linear-gradient(145deg,var(--gold2),#ad7e2d);box-shadow:inset 0 0 0 1px #f6dda5}.brand h1{font-size:15px;margin:0}.brand small{display:block;color:var(--muted);font-size:11px;margin-top:1px}.nav{display:flex;gap:5px;margin-left:auto}.nav button{border:0;background:transparent;color:var(--muted);border-radius:9px;padding:8px 11px}.nav button.active,.nav button:hover{background:var(--panel2);color:var(--text)}.account{display:flex;align-items:center;gap:8px;margin-left:6px}.account-email{font-size:11px;color:var(--muted);max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.container{max-width:1440px;margin:auto;padding:20px}.page{display:none}.page.active{display:block}.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:14px}.page-head h2{margin:0 0 3px;font-size:23px}.page-head p{margin:0;color:var(--muted)}
.btn{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:10px;padding:8px 11px}.btn:hover{border-color:#4a525d}.btn.primary{background:linear-gradient(180deg,#e2bf72,#b98a38);border-color:#cfaa5c;color:#181207;font-weight:750}.btn.danger{color:#ffb8bd}.btn.ghost{background:transparent}.btn.small{padding:6px 8px;font-size:12px}.actions{display:flex;gap:8px;flex-wrap:wrap}
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-bottom:12px}.kpi{background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:10px 12px}.kpi .label{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.kpi .value{font-size:20px;font-weight:800;margin-top:2px}.kpi .sub{font-size:10px;color:var(--muted);margin-top:1px}
.grid{display:grid;grid-template-columns:1.45fr 1fr;gap:12px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.card-head{padding:12px 14px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px}.card-head h3{font-size:13px;margin:0}.card-body{padding:12px 14px}.empty{padding:24px 12px;text-align:center;color:var(--muted)}
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:11px}.search{flex:1;min-width:220px;position:relative}.search input{width:100%;background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:10px;padding:9px 11px 9px 34px}.search:before{content:'⌕';position:absolute;left:11px;top:7px;color:var(--muted);font-size:18px}.filter{background:var(--panel);border:1px solid var(--line);color:var(--text);padding:8px 10px;border-radius:10px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px;background:var(--panel)}table{width:100%;border-collapse:collapse;min-width:1030px}th,td{padding:10px 11px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{position:sticky;top:0;background:#171a1f;color:#aeb5be;font-size:10px;text-transform:uppercase;letter-spacing:.055em;z-index:2}tbody tr:hover{background:#181c21}tbody tr:last-child td{border-bottom:0}.student-link{border:0;background:none;color:var(--text);font-weight:750;padding:0}.student-link:hover{color:var(--gold2)}.nowrap{white-space:nowrap}.truncate{max-width:230px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pill{display:inline-flex;padding:3px 7px;border:1px solid var(--line);border-radius:999px;font-size:10px;background:#20242a}.pill.active{color:#b9efc4;border-color:#315b38;background:#172b1c}.pill.waiting{color:#ffe0a1;border-color:#66522d;background:#2c2415}.pill.paused{color:#c9d6e9;border-color:#3c4d63;background:#192231}.pill.finished,.pill.former{color:#b8b8b8;border-color:#444;background:#202020}.pill.overdue{color:#ffc1c6;border-color:#754046;background:#301a1e}.pill.soon{color:#ffe1a0;border-color:#6f582e;background:#2d2617}
.list{display:flex;flex-direction:column}.list-item{display:grid;grid-template-columns:1fr auto;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.list-item:last-child{border-bottom:0}.list-item strong{display:block}.list-item small{color:var(--muted)}.date{white-space:nowrap;color:var(--gold2);font-size:11px;text-align:right}.money{font-variant-numeric:tabular-nums}
.mobile-cards{display:none}.student-card{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:12px;margin-bottom:9px}.student-card-top{display:flex;justify-content:space-between;gap:10px}.student-card h3{font-size:16px;margin:0}.student-card p{margin:5px 0 0;color:var(--muted)}.student-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.student-meta div{background:var(--panel3);border:1px solid var(--line);border-radius:9px;padding:8px}.student-meta small{display:block;color:var(--muted);font-size:9px;text-transform:uppercase}.student-meta span{display:block;margin-top:2px;font-size:12px}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at 30% 20%,#211b10 0,transparent 35%),var(--bg)}.auth-card{width:min(430px,100%);background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:24px}.auth-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}.auth-brand .mark{width:46px;height:46px}.auth-brand h1{font-size:20px;margin:0}.auth-brand p{margin:2px 0 0;color:var(--muted);font-size:12px}.auth-card h2{font-size:16px;margin:0 0 5px}.auth-card>p{color:var(--muted);margin:0 0 16px}.auth-actions{display:flex;gap:8px;margin-top:12px}.auth-note{font-size:11px;color:var(--muted);margin-top:14px;padding-top:13px;border-top:1px solid var(--line)}.setup-box{border:1px solid #6b552f;background:#2a2316;border-radius:11px;padding:12px;margin-bottom:14px;color:#f4ddb0}.setup-box strong{display:block;margin-bottom:3px}
.field{display:flex;flex-direction:column;gap:5px}.field label{font-size:10px;color:#c3c8cf;text-transform:uppercase;letter-spacing:.06em}.field input,.field select,.field textarea{background:#0f1216;border:1px solid var(--line);color:var(--text);border-radius:9px;padding:9px 10px}.field textarea{min-height:80px;resize:vertical}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.field.full{grid-column:1/-1}.hint{font-size:10px;color:var(--muted)}
dialog{border:1px solid var(--line);padding:0;border-radius:16px;background:var(--panel);color:var(--text);box-shadow:0 28px 90px rgba(0,0,0,.65);width:min(850px,calc(100vw - 24px));max-height:92vh}dialog::backdrop{background:rgba(0,0,0,.7);backdrop-filter:blur(3px)}.modal-head{padding:15px 17px;border-bottom:1px solid var(--line);display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.modal-head h3{font-size:17px;margin:0}.modal-head p{font-size:11px;color:var(--muted);margin:2px 0 0}.modal-body{padding:15px 17px;overflow:auto;max-height:72vh}.modal-foot{padding:12px 17px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}.iconbtn{border:0;background:transparent;color:var(--muted);font-size:22px;line-height:1}.profile{width:min(1050px,calc(100vw - 18px))}.profile-head{padding:16px 17px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px}.avatar{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,#4b3b1c,#15120d);color:var(--gold2);font-weight:850}.profile-title{flex:1}.profile-title h3{font-size:19px;margin:0}.profile-title p{margin:2px 0 0;color:var(--muted);font-size:12px}.tabs{display:flex;gap:4px;padding:8px 12px;border-bottom:1px solid var(--line);overflow:auto}.tabs button{border:0;background:transparent;color:var(--muted);padding:7px 9px;border-radius:8px;white-space:nowrap}.tabs button.active{background:var(--panel2);color:var(--text)}.profile-body{padding:14px 17px;max-height:68vh;overflow:auto}.tab-pane{display:none}.tab-pane.active{display:block}.details{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.detail{background:var(--panel3);border:1px solid var(--line);border-radius:10px;padding:9px}.detail small{display:block;color:var(--muted);font-size:9px;text-transform:uppercase;letter-spacing:.05em}.detail span{display:block;margin-top:2px}.section-title{display:flex;justify-content:space-between;align-items:center;margin:13px 0 7px}.section-title h4{font-size:12px;margin:0}.record{border:1px solid var(--line);border-radius:10px;background:var(--panel3);padding:10px;margin-bottom:7px}.record-top{display:flex;justify-content:space-between;gap:10px}.record strong{font-size:12px}.record small{color:var(--muted)}.record p{margin:5px 0 0;color:#cbd0d6;white-space:pre-wrap}.record-actions{margin-top:7px}.toast{position:fixed;right:18px;bottom:18px;z-index:90;background:#24282f;border:1px solid #454c55;border-radius:10px;padding:10px 12px;box-shadow:var(--shadow);opacity:0;transform:translateY(7px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}.loading{position:fixed;inset:0;z-index:100;background:rgba(11,13,16,.7);display:grid;place-items:center;backdrop-filter:blur(2px)}.spinner{width:36px;height:36px;border:3px solid #3b4048;border-top-color:var(--gold);border-radius:50%;animation:spin .75s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:900px){.grid{grid-template-columns:1fr}.kpis{grid-template-columns:repeat(2,1fr)}.details{grid-template-columns:repeat(2,1fr)}.account-email{display:none}.brand{min-width:0}.brand small{display:none}.container{padding:15px}.page-head{align-items:flex-start;flex-direction:column}.form-grid{grid-template-columns:1fr}}
@media(max-width:650px){.topbar-inner{padding:10px 12px}.brand h1{font-size:13px}.nav button{padding:8px}.nav button span{display:none}.desktop-table{display:none}.mobile-cards{display:block}.page-head h2{font-size:20px}.kpi .value{font-size:18px}.details{grid-template-columns:1fr}.profile-body{padding:12px}.profile-head{padding:13px}.student-meta{grid-template-columns:1fr 1fr}}