:root{--bg:#f4f6f8;--surface:#ffffff;--ink:#16232e;--muted:#64748b;--line:#e2e8f0;--brand:#10b981;--brand-dark:#0b8a62;--brand-soft:#d1fae5;--sidebar:#0f1b24;--sidebar-ink:#9fb3c0;--warn:#f59e0b;--danger:#ef4444;--info:#3b82f6;--radius:12px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--ink);font-size:14px;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.shell{display:flex;min-height:100vh}.sidebar{width:232px;flex-shrink:0;background:var(--sidebar);color:var(--sidebar-ink);padding:20px 12px;display:flex;flex-direction:column;gap:4px;position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar .logo{color:#fff;font-size:20px;font-weight:800;letter-spacing:-.5px;padding:4px 12px 18px}.sidebar .logo span{color:var(--brand)}.sidebar .section{font-size:10px;text-transform:uppercase;letter-spacing:1.2px;padding:14px 12px 6px;color:#5b7284}.navlink{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;font-weight:500;font-size:13.5px}.navlink:hover{background:rgba(255,255,255,.06);color:#fff}.navlink.active{background:var(--brand);color:#06251b;font-weight:700}.navlink .ico{width:18px;text-align:center}.main{flex:1 1;padding:28px 34px;max-width:1280px}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.topbar h1{font-size:22px;font-weight:800;letter-spacing:-.4px}.topbar .sub{color:var(--muted);margin-top:3px;font-size:13px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.grid{display:grid;grid-gap:16px;gap:16px}.grid.cols-2{grid-template-columns:1fr 1fr}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-4{grid-template-columns:repeat(4,1fr)}@media (max-width:1100px){.grid.cols-4{grid-template-columns:1fr 1fr}.grid.cols-2,.grid.cols-3{grid-template-columns:1fr}}.kpi .label{color:var(--muted);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.6px}.kpi .value{font-size:26px;font-weight:800;margin-top:6px;letter-spacing:-.5px}.kpi .delta{font-size:12px;margin-top:4px;font-weight:600}.delta.up{color:var(--brand-dark)}.delta.down{color:var(--danger)}.card h2{font-size:15px;font-weight:700;margin-bottom:14px}table{width:100%;border-collapse:collapse}th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);padding:8px 10px}td,th{border-bottom:1px solid var(--line)}td{padding:11px 10px;font-size:13.5px}tr:last-child td{border-bottom:none}tbody tr:hover{background:#f8fafc}.badge{display:inline-block;padding:3px 10px;border-radius:99px;font-size:11.5px;font-weight:700}.badge.ok{background:var(--brand-soft);color:var(--brand-dark)}.badge.warn{background:#fef3c7;color:#92400e}.badge.bad{background:#fee2e2;color:#991b1b}.badge.info{background:#dbeafe;color:#1e40af}.badge.gray{background:#f1f5f9;color:#475569}.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:9px;font-weight:700;font-size:13px;cursor:pointer;border:1px solid transparent;background:var(--brand);color:#06251b}.btn:hover{background:#0ea371;color:#fff}.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink)}.btn.ghost:hover{background:#f1f5f9}.avatar{width:32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dark);display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:12px;flex-shrink:0}.bar{height:8px;background:#eef2f6;overflow:hidden}.bar,.bar>div{border-radius:99px}.bar>div{height:100%;background:var(--brand)}.list-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.list-row:last-child{border-bottom:none}.searchbox{padding:9px 14px;border:1px solid var(--line);border-radius:9px;font-size:13.5px;width:260px;background:var(--surface)}.searchbox:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(1000px 500px at 70% -10%,#123528,var(--sidebar))}.login-card{width:380px;background:var(--surface);border-radius:16px;padding:36px}.login-card .logo{font-size:26px;font-weight:800;margin-bottom:4px}.login-card .logo span{color:var(--brand)}.field{margin-top:16px}.field label{display:block;font-size:12px;font-weight:700;color:var(--muted);margin-bottom:6px}.field input{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:9px;font-size:14px}.field input:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}.muted{color:var(--muted)}.small{font-size:12px}.flex{gap:10px}.flex,.spread{display:flex;align-items:center}.spread{justify-content:space-between}.mt{margin-top:16px}.chip-row{display:flex;gap:8px;flex-wrap:wrap}.app-shell{max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);padding:20px 16px 88px;display:flex;flex-direction:column;gap:16px}.app-header{display:flex;align-items:flex-start;justify-content:space-between}.app-header h1{font-size:22px;font-weight:800;letter-spacing:-.4px}.app-header .sub{color:var(--muted);font-size:13px;margin-top:3px}.tabbar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:480px;background:var(--surface);border-top:1px solid var(--line);display:flex;z-index:20;padding-bottom:env(safe-area-inset-bottom)}.tabbar a{flex:1 1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 0 8px;font-size:10.5px;font-weight:600;color:var(--muted)}.tabbar a .t-ico{font-size:19px;line-height:1}.tabbar a.active{color:var(--brand-dark);font-weight:800}.ex-card{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--radius);padding:14px 16px;gap:12px}.ex-card,.ex-card .thumb{display:flex;align-items:center}.ex-card .thumb{width:44px;height:44px;border-radius:10px;background:var(--brand-soft);justify-content:center;font-size:20px;flex-shrink:0}.ex-card .ex-info{flex:1 1;min-width:0}.ex-card .ex-name{font-weight:700;font-size:14px}.ex-card .ex-meta{color:var(--muted);font-size:12.5px;margin-top:3px}.ex-card .ex-link{color:var(--brand-dark);font-size:12px;font-weight:700;margin-top:5px;display:inline-block}.check-circle{width:24px;height:24px;border-radius:50%;flex-shrink:0;border:2px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:transparent;background:var(--surface)}.check-circle.done{background:var(--brand);border-color:var(--brand);color:#fff}.session-row{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;display:flex;align-items:center;gap:12px}.session-row .s-num{font-weight:800;font-size:14px}.session-row .s-date{color:var(--muted);font-size:12px;margin-top:2px}.day-strip{display:grid;grid-template-columns:repeat(7,1fr);grid-gap:6px;gap:6px}.day-strip .day{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 0;border-radius:12px;font-size:11px;color:var(--muted);font-weight:600;background:var(--surface);border:1px solid var(--line)}.day-strip .day .num{font-size:15px;font-weight:800;color:var(--ink)}.day-strip .day.active{background:var(--brand);border-color:var(--brand);color:#04382a}.day-strip .day.active .num{color:#fff}.class-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;display:flex;align-items:center;gap:12px}.class-card .c-time{font-weight:800;font-size:13px;min-width:52px}.class-card .c-time .end{display:block;color:var(--muted);font-weight:600;font-size:11.5px}.ring{--pct:0;width:64px;height:64px;border-radius:50%;flex-shrink:0;background:conic-gradient(var(--brand) calc(var(--pct) * 1%),#e8edf2 0);display:flex;align-items:center;justify-content:center}.ring:before{content:"";position:absolute}.ring .ring-in{width:50px;height:50px;border-radius:50%;background:var(--surface);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}.level-dots{display:inline-flex;gap:4px}.level-dots i{width:8px;height:8px;border-radius:50%;background:#dbe3ea;display:inline-block}.btn-pill,.level-dots i.on{background:var(--brand)}.btn-pill{display:block;width:100%;text-align:center;padding:14px;border-radius:99px;color:#fff;font-weight:800;font-size:15px;border:none;cursor:pointer}.btn-pill:hover{background:var(--brand-dark)}.btn-pill.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}.btn-pill.disabled,.btn-pill:disabled{background:#e8edf2;color:var(--muted);cursor:default}.avatar-cluster{display:inline-flex;align-items:center}.avatar-cluster .avatar{width:26px;height:26px;font-size:10px;border:2px solid var(--surface);margin-left:-8px}.avatar-cluster .avatar:first-child{margin-left:0}.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:9px;font-size:14px;background:var(--surface);font-family:inherit;color:var(--ink)}.field select:focus,.field textarea:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}.field textarea{min-height:84px;resize:vertical}.field-row{display:flex;gap:12px}.field-row .field{flex:1 1}.aviso{margin-top:14px;padding:10px 13px;border-radius:9px;font-size:13px;font-weight:600}.aviso.error{background:#fee2e2;color:#991b1b}.aviso.ok{background:var(--brand-soft);color:var(--brand-dark)}.modal-fondo{position:fixed;inset:0;z-index:50;background:rgba(15,27,36,.55);display:flex;align-items:center;justify-content:center;padding:20px}.modal{background:var(--surface);border-radius:16px;padding:26px;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:0 24px 60px rgba(15,27,36,.28)}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.modal-head h2{font-size:18px}.modal-head .cerrar{border:none;background:none;font-size:22px;line-height:1;color:var(--muted);cursor:pointer;padding:0 4px}.modal-head .cerrar:hover{color:var(--ink)}.modal-acciones{display:flex;gap:10px;justify-content:flex-end;margin-top:22px}.btn.ghost:disabled,.btn:disabled{opacity:.55;cursor:default}.btn-chico{padding:7px 14px;font-size:13px}