:root{--bg:#0a0a0a;--surface:#141414;--surface-2:#1b1b1b;--border:#262626;--text:#f2efe9;--text-2:#a8a39a;--text-3:#8a857c;--gold:#d6b25e;--gold-2:#b8913f;--gold-soft:#d6b25e1f;--danger:#e5675c;--warn:#e3a23b;--ok:#7cc68c;--radius:14px;--serif:"Cormorant Garamond", Georgia, serif;--sans:"Inter", system-ui, -apple-system, sans-serif;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%}body{background:radial-gradient(120% 60% at 50% -10%, #d6b25e12, transparent 60%), var(--bg);color:var(--text);font-family:var(--sans);-webkit-font-smoothing:antialiased;background-attachment:fixed;margin:0;font-size:15px;line-height:1.5}.num{font-family:var(--sans);font-variant-numeric:tabular-nums;font-weight:600}h1,h2,h3{font-family:var(--serif);letter-spacing:.01em;margin:0;font-weight:500}h1{font-size:2.4rem;line-height:1.1}h2{font-size:1.6rem}.eyebrow{letter-spacing:.22em;text-transform:uppercase;color:var(--text-2);font-size:.72rem;font-weight:500}.muted{color:var(--text-2)}a{color:var(--gold);text-decoration:none}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.empty{border:1px dashed var(--border);border-radius:var(--radius);text-align:center;color:var(--text-2);padding:28px 20px}.btn{font:600 .8rem var(--sans);letter-spacing:.14em;text-transform:uppercase;cursor:pointer;border:0;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:12px 20px;transition:filter .15s,opacity 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input{width:20px;height:20px;accent-color:var(--gold);flex-shrink:0;margin-top:2px}.error{color:var(--danger);font-size:.9rem}.notice{color:var(--ok);font-size:.9rem}.logo{font-family:var(--serif);letter-spacing:.35em;color:var(--text);font-size:1.5rem}.logo:before{content:"•";color:var(--gold);letter-spacing:0;margin-right:10px}.center-screen{min-height:100%;padding:24px 16px calc(24px + env(safe-area-inset-bottom));place-items:center;display:grid}.center-card{gap:20px;width:100%;max-width:400px;display:grid}.alumno-shell{min-height:100%;padding:calc(20px + env(safe-area-inset-top)) 16px calc(96px + env(safe-area-inset-bottom));max-width:560px;margin:0 auto}.bottom-nav{z-index:10;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border);padding:8px 8px calc(8px + env(safe-area-inset-bottom));background:#0c0c0cf0;grid-template-columns:repeat(4,1fr);display:grid;position:fixed;inset:auto 0 0}.bottom-nav a{color:var(--text-3);letter-spacing:.12em;text-transform:uppercase;justify-items:center;gap:4px;padding:6px 0;font-size:.68rem;display:grid}.bottom-nav a.active{color:var(--gold)}.bottom-nav svg{width:22px;height:22px}.coach-shell{grid-template-columns:240px 1fr;min-height:100%;display:grid}.sidebar{border-right:1px solid var(--border);flex-direction:column;gap:28px;height:100vh;padding:28px 16px;display:flex;position:sticky;top:0}.sidebar nav{gap:4px;display:grid}.sidebar nav a{color:var(--text-2);letter-spacing:.18em;text-transform:uppercase;border-radius:10px;align-items:center;gap:12px;padding:10px 12px;font-size:.75rem;display:flex}.sidebar nav a.active{background:var(--gold-soft);color:var(--gold)}.sidebar nav svg{width:18px;height:18px}.sidebar .user{border:1px solid var(--border);color:var(--text-2);word-break:break-all;border-radius:12px;gap:8px;margin-top:auto;padding:12px;font-size:.85rem;display:grid}.coach-main{width:100%;min-width:0;max-width:1100px;padding:40px}@media (width<=860px){.coach-shell{grid-template-rows:auto 1fr;grid-template-columns:minmax(0,1fr);align-content:start}.sidebar{border-right:0;border-bottom:1px solid var(--border);gap:16px;min-width:0;height:auto;padding:16px;position:static}.sidebar nav{grid-auto-flow:column;overflow-x:auto}.sidebar .user{display:none}.coach-main{padding:20px 16px}}.page-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:28px;display:flex}.page-head .title{gap:6px;display:grid}.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.stack{gap:16px;display:grid}.stat{justify-content:space-between;align-items:center;display:flex}.stat .num{font-size:2rem}.fila-alumno{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.avatar{border:1px solid var(--gold-2);width:42px;height:42px;color:var(--gold);font:600 .8rem var(--sans);letter-spacing:.08em;border-radius:50%;flex-shrink:0;place-items:center;display:grid}.acciones{flex-wrap:wrap;gap:8px;display:flex}.acciones .btn{padding:8px 12px;font-size:.68rem}.chip{font:600 .66rem var(--sans);letter-spacing:.14em;text-transform:uppercase;white-space:nowrap;border:1px solid;border-radius:999px;padding:6px 10px}.chip-ok{color:var(--ok);border-color:#7cc68c66}.chip-warn{color:var(--warn);border-color:#e3a23b66}.chip-off{color:var(--text-3);border-color:var(--border)}.modal-fondo{z-index:50;background:#000000b3;place-items:center;padding:16px;display:grid;position:fixed;inset:0;overflow-y:auto}.modal{width:100%;max-width:520px;max-height:calc(100vh - 32px);overflow-y:auto}.dos-columnas{grid-template-columns:1fr 1fr;gap:12px;display:grid}@media (width<=480px){.dos-columnas{grid-template-columns:1fr}}