:root{--bg:#eef5f3;--panel:#ffffff;--ink:#112522;--muted:#6c7e7a;--line:#dce8e5;--teal:#0b5a52;--teal2:#0b7568;--teal3:#12a28d;--orange:#ff7a1a;--orange2:#ff9347;--danger:#c6444f;--warning:#bd7a12;--success:#138264;--radius:20px;--shadow:0 18px 50px rgba(5,55,49,.10)}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:linear-gradient(145deg,#edf5f2,#f7faf9);color:var(--ink)}body{overflow-x:hidden}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit}.hidden{display:none!important}.boot{min-height:100vh;display:grid;place-items:center;align-content:center;gap:10px;color:var(--teal)}.boot span{color:var(--muted);font-size:13px}.spinner{width:34px;height:34px;border:4px solid #d6e7e2;border-top-color:var(--teal3);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;background:radial-gradient(circle at 12% 12%,rgba(22,172,148,.18),transparent 34%),linear-gradient(135deg,#043a35,#075a52 55%,#0d4c47)}.auth-hero{padding:64px 7vw;color:white;display:flex;flex-direction:column;justify-content:space-between;min-height:100vh;position:relative;overflow:hidden}.auth-hero:after{content:"";position:absolute;width:540px;height:540px;border:1px solid rgba(255,255,255,.1);border-radius:50%;right:-220px;top:120px;box-shadow:0 0 0 60px rgba(255,255,255,.03),0 0 0 120px rgba(255,255,255,.02)}.brand-lockup{display:flex;align-items:center;gap:12px;position:relative;z-index:1}.brand-mark{width:48px;height:48px;border-radius:15px;background:linear-gradient(135deg,var(--orange),#ff5200);display:grid;place-items:center;font-weight:1000;box-shadow:0 12px 30px rgba(0,0,0,.18)}.brand-lockup small,.brand-lockup b{display:block}.brand-lockup small{opacity:.72}.auth-copy{max-width:670px;position:relative;z-index:1}.auth-copy h1{font-size:clamp(42px,5vw,76px);letter-spacing:-.05em;line-height:.95;margin:0 0 18px}.auth-copy p{font-size:18px;line-height:1.65;max-width:590px;color:#d6eeea}.auth-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.auth-pills span{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.12);padding:9px 13px;border-radius:999px;font-size:12px}.auth-side{background:#f7fbfa;display:grid;place-items:center;padding:28px}.auth-card{width:min(460px,100%);background:#fff;border:1px solid #e2ece9;border-radius:28px;padding:30px;box-shadow:0 22px 60px rgba(2,47,42,.18)}.auth-card h2{font-size:28px;margin:0 0 8px}.auth-card>p{color:var(--muted);margin:0 0 22px;line-height:1.5}.field{display:grid;gap:6px;margin-bottom:13px}.field label{font-size:12px;font-weight:800;color:#45605a}.input,.field input,.field select,.field textarea{width:100%;border:1px solid #d5e2df;background:white;border-radius:13px;padding:12px 13px;outline:none;color:var(--ink);transition:.15s}.input:focus,.field input:focus,.field select:focus,.field textarea:focus{border-color:#5cb6a8;box-shadow:0 0 0 4px rgba(42,153,135,.09)}.btn{border:0;border-radius:12px;padding:10px 14px;font-weight:850;font-size:12px;display:inline-flex;align-items:center;justify-content:center;gap:7px;transition:.16s;text-decoration:none}.btn:hover{transform:translateY(-1px)}.btn.primary{color:#fff;background:linear-gradient(135deg,var(--teal2),var(--teal3));box-shadow:0 10px 20px rgba(13,117,104,.18)}.btn.orange{background:linear-gradient(135deg,var(--orange),var(--orange2));color:#fff}.btn.secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}.btn.ghost{background:transparent;color:var(--muted)}.btn.danger{background:#fff0f1;color:#a9323e;border:1px solid #ffd4d8}.btn.success{background:#e9f9f3;color:#0d7558;border:1px solid #c8eadd}.btn.warning{background:#fff6df;color:#8b5b08;border:1px solid #f4dfae}.btn.sm{padding:7px 9px;font-size:10px;border-radius:9px}.btn.wide{width:100%}.auth-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:8px}.link-btn{border:0;background:transparent;color:var(--teal2);font-weight:800;padding:6px}.error-box{background:#fff1f2;color:#a3343f;border:1px solid #ffd1d5;border-radius:12px;padding:10px 12px;font-size:12px;margin-bottom:12px}.shell{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:linear-gradient(180deg,#073f3a,#062f2c);padding:16px 12px;color:white;display:flex;flex-direction:column;z-index:40}.side-brand{display:flex;align-items:center;gap:10px;padding:4px 7px 18px}.side-brand .brand-mark{width:40px;height:40px;border-radius:12px}.side-brand b,.side-brand small{display:block}.side-brand small{font-size:10px;color:#9cc8c1}.side-close{display:none;margin-left:auto;border:0;background:transparent;color:#fff;font-size:24px}.nav{overflow:auto;padding-right:2px}.nav-group{margin:8px 0 16px}.nav-group>span{display:block;font-size:9px;text-transform:uppercase;letter-spacing:.13em;color:#75a69f;font-weight:900;padding:0 10px 6px}.nav button{width:100%;border:0;background:transparent;color:#c6dfda;border-radius:11px;padding:10px;display:flex;align-items:center;gap:9px;text-align:left;font-weight:750;font-size:12px;margin:2px 0}.nav button:hover,.nav button.active{background:rgba(255,255,255,.09);color:white}.nav button.active{box-shadow:inset 3px 0 0 var(--orange)}.side-profile{margin-top:auto;border-top:1px solid rgba(255,255,255,.10);padding:13px 7px 2px;display:flex;align-items:center;gap:9px}.avatar{width:36px;height:36px;border-radius:12px;background:#dff5f0;color:#0b6b5f;display:grid;place-items:center;font-weight:950;flex:0 0 auto}.side-profile .who{min-width:0;flex:1}.side-profile b,.side-profile small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.side-profile small{font-size:9px;color:#8ab9b2}.main{min-width:0}.topbar{height:68px;position:sticky;top:0;z-index:25;background:rgba(244,249,247,.88);backdrop-filter:blur(16px);border-bottom:1px solid #dfe9e6;display:flex;align-items:center;gap:10px;padding:0 22px}.menu-btn{display:none;border:0;background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 10px}.top-title b,.top-title small{display:block}.top-title small{font-size:10px;color:var(--muted)}.top-spacer{flex:1}.status-dot{display:inline-flex;align-items:center;gap:6px;background:#e8f8f2;color:#087255;border:1px solid #cce9de;border-radius:999px;padding:6px 9px;font-size:9px;font-weight:900}.status-dot:before{content:"";width:6px;height:6px;border-radius:50%;background:#20a97f}.content{padding:22px;max-width:1540px;margin:auto}.title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:17px}.title-row small{display:block;text-transform:uppercase;letter-spacing:.12em;color:#74908a;font-weight:900;font-size:9px}.title-row h1{margin:3px 0 0;font-size:25px;letter-spacing:-.035em}.title-actions{display:flex;gap:7px;flex-wrap:wrap}.panel{background:rgba(255,255,255,.98);border:1px solid #e0ebe8;border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.panel.flat{box-shadow:none}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.panel-head h2{margin:0;font-size:15px}.panel-head p{margin:3px 0 0;color:var(--muted);font-size:11px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(175px,1fr));gap:12px}.metric{position:relative;overflow:hidden}.metric:after{content:"";position:absolute;width:100px;height:100px;border-radius:50%;background:var(--soft,#e8f6f2);right:-34px;top:-34px}.metric .ico{width:37px;height:37px;border-radius:12px;background:var(--soft,#e8f6f2);display:grid;place-items:center;font-size:18px;position:relative;z-index:1}.metric .value{font-size:22px;font-weight:950;margin-top:11px;letter-spacing:-.04em}.metric .label{font-size:10px;color:var(--muted);margin-top:2px}.grid-2{display:grid;grid-template-columns:1.15fr .85fr;gap:13px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.stack{display:grid;gap:12px}.filterbar{display:flex;align-items:end;gap:8px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:15px;padding:11px;margin-bottom:13px}.filterbar .field{margin:0;min-width:160px}.filterbar .field.grow{flex:1;min-width:220px}.tag{display:inline-flex;align-items:center;gap:4px;border-radius:999px;padding:4px 7px;font-size:9px;font-weight:900;background:#e8f7f2;color:#087158}.tag.gray{background:#eef1f1;color:#63736f}.tag.blue{background:#eaf4ff;color:#336b9a}.tag.orange{background:#fff0e5;color:#a6500b}.tag.red{background:#fff0f1;color:#aa3944}.tag.amber{background:#fff5df;color:#8d5c08}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;min-width:760px}.table th{text-align:left;color:#82928e;text-transform:uppercase;font-size:9px;letter-spacing:.08em;padding:9px 10px;border-bottom:1px solid var(--line)}.table td{padding:10px;border-bottom:1px solid #edf2f0;font-size:11px;vertical-align:middle}.table tr:last-child td{border-bottom:0}.table-actions{display:flex;gap:5px;flex-wrap:wrap}.empty{text-align:center;padding:32px 16px;color:var(--muted)}.empty .emoji{font-size:34px}.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px}.course-card{overflow:hidden;padding:0}.course-cover{height:135px;background:linear-gradient(135deg,#0a675d,#0f9c89);position:relative;padding:18px;color:#fff;display:flex;flex-direction:column;justify-content:flex-end}.course-cover:after{content:"";position:absolute;width:145px;height:145px;border:2px solid rgba(255,255,255,.11);border-radius:50%;right:-45px;top:-55px;box-shadow:0 0 0 28px rgba(255,255,255,.04)}.course-cover b{font-size:20px;max-width:75%;position:relative;z-index:1}.course-cover small{opacity:.8;position:relative;z-index:1}.course-body{padding:14px}.progress{height:8px;background:#e6eeec;border-radius:999px;overflow:hidden}.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--teal3),#35c0a8);border-radius:999px}.progress-row{display:flex;justify-content:space-between;gap:8px;align-items:center;margin:9px 0 5px;font-size:10px}.lesson-list{display:grid;gap:8px}.lesson{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;border:1px solid var(--line);border-radius:14px;padding:10px;background:#fff}.lesson .num{width:34px;height:34px;border-radius:11px;background:#e8f6f2;display:grid;place-items:center;font-weight:950;color:#0b6e61}.lesson b,.lesson small{display:block}.lesson small{color:var(--muted);font-size:9px;margin-top:2px}.lesson.locked{opacity:.55;background:#f7f9f8}.module{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}.module-head{padding:12px 14px;background:#f5faf8;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:8px}.module-head h3{margin:0;font-size:13px}.module-body{padding:10px;display:grid;gap:7px}.live-card{border-left:4px solid #e8515b}.live-card.upcoming{border-left-color:var(--orange)}.live-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:10px;margin-top:8px}.notice{border-radius:14px;padding:12px;background:#eef8f5;border:1px solid #d8ece6}.notice b{display:block;font-size:12px}.notice p{margin:5px 0 0;color:#536964;font-size:11px;line-height:1.55}.student-hero{background:linear-gradient(135deg,#064942,#0a7669);color:white;border-radius:24px;padding:24px;display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;overflow:hidden;position:relative}.student-hero:after{content:"";position:absolute;width:280px;height:280px;border:2px solid rgba(255,255,255,.08);border-radius:50%;right:-90px;top:-120px;box-shadow:0 0 0 45px rgba(255,255,255,.025)}.student-hero h1{margin:0 0 7px;font-size:31px;letter-spacing:-.04em;position:relative;z-index:1}.student-hero p{margin:0;color:#cde6e1;position:relative;z-index:1}.ring{--p:0;width:108px;height:108px;border-radius:50%;background:conic-gradient(#ff913e calc(var(--p)*1%),rgba(255,255,255,.15) 0);display:grid;place-items:center;position:relative;z-index:1}.ring:after{content:"";width:78px;height:78px;border-radius:50%;background:#0b5b52;position:absolute}.ring strong{position:relative;z-index:1;font-size:20px}.video-shell{aspect-ratio:16/9;background:#041b19;border-radius:18px;overflow:hidden}.video-shell>div,.video-shell iframe{width:100%;height:100%}.video-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin:12px 0}.video-meta small{color:var(--muted)}.split-page{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.5fr);gap:13px;align-items:start}.sticky{position:sticky;top:85px}.modal-back{position:fixed;inset:0;background:rgba(3,24,22,.62);backdrop-filter:blur(5px);z-index:100;display:grid;place-items:center;padding:20px}.modal{width:min(620px,100%);max-height:91vh;overflow:auto;background:#fff;border-radius:22px;border:1px solid #dfeae7;box-shadow:0 30px 80px rgba(0,0,0,.25);padding:17px}.modal.wide{width:min(980px,100%)}.modal-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:13px}.modal-head h2{margin:0;font-size:18px}.modal-head button{border:0;background:#eff4f3;width:32px;height:32px;border-radius:10px;font-size:20px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.form-grid .full{grid-column:1/-1}.check-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:7px}.check{display:flex;align-items:flex-start;gap:7px;border:1px solid var(--line);border-radius:11px;padding:9px;font-size:11px}.muted{color:var(--muted)}.small{font-size:10px}.danger-text{color:var(--danger)}.success-text{color:var(--success)}.divider{height:1px;background:var(--line);margin:13px 0}.kpi-line{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:9px 0;border-bottom:1px dashed #dce7e4}.kpi-line:last-child{border-bottom:0}.upload-note{font-size:10px;color:var(--muted);line-height:1.45}.timeline{display:grid;gap:7px}.timeline-item{border-left:3px solid #9bd1c6;padding:7px 10px;background:#f8fbfa;border-radius:0 10px 10px 0}.timeline-item b,.timeline-item small{display:block}.timeline-item small{color:var(--muted);font-size:9px;margin-top:2px}.calendar-list{display:grid;gap:8px}.calendar-item{display:grid;grid-template-columns:60px 1fr auto;gap:10px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:10px}.calendar-date{background:#eaf7f3;border-radius:11px;padding:7px;text-align:center}.calendar-date b,.calendar-date small{display:block}.calendar-date b{font-size:18px}.calendar-date small{font-size:9px;color:#39766b}.pill-row{display:flex;gap:6px;flex-wrap:wrap}.pill{border:1px solid var(--line);border-radius:999px;padding:6px 8px;font-size:9px;background:#fff}.drop-zone{border:1px dashed #adc9c3;border-radius:14px;padding:14px;background:#f6fbf9}.footer-note{text-align:center;color:#8ca09b;font-size:9px;padding:22px}#toast-root{position:fixed;right:18px;bottom:18px;z-index:200;display:grid;gap:8px}.toast{background:#102e2a;color:white;border-radius:12px;padding:10px 13px;box-shadow:0 12px 30px rgba(0,0,0,.2);font-size:11px;max-width:360px}.toast.error{background:#8e2f39}.toast.success{background:#0c6d54}@media(max-width:1080px){.auth-wrap{grid-template-columns:1fr}.auth-hero{display:none}.auth-side{min-height:100vh}.shell{grid-template-columns:220px minmax(0,1fr)}.split-page,.grid-2{grid-template-columns:1fr}.sticky{position:static}.grid-3{grid-template-columns:1fr 1fr}}@media(max-width:760px){.shell{display:block}.sidebar{position:fixed;left:-270px;width:250px;transition:.18s}.sidebar.open{left:0;box-shadow:20px 0 60px rgba(0,0,0,.25)}.side-close{display:block}.menu-btn{display:inline-flex}.topbar{padding:0 12px}.status-dot{display:none}.content{padding:13px}.title-row{align-items:flex-start;flex-direction:column}.title-actions{width:100%}.title-actions .btn{flex:1}.cards,.grid-3{grid-template-columns:1fr 1fr}.student-hero{grid-template-columns:1fr}.ring{width:88px;height:88px}.ring:after{width:64px;height:64px}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.course-grid{grid-template-columns:1fr}.calendar-item{grid-template-columns:55px 1fr}.calendar-item>.btn{grid-column:1/-1}.modal-back{padding:8px}.modal{border-radius:17px}.auth-side{padding:14px}.auth-card{padding:22px;border-radius:22px}}@media(max-width:430px){.cards,.grid-3{grid-template-columns:1fr}.top-title small{display:none}.top-title b{font-size:12px}.content{padding:10px}.panel{padding:13px}.student-hero{padding:18px}.student-hero h1{font-size:26px}.course-cover{height:120px}.auth-card{padding:18px}.auth-actions{align-items:stretch;flex-direction:column}.auth-actions .btn{width:100%}}

/* =========================================================
   CENTRAL DE ALUMNOS V2 · FUTURISTIC UI
   Visual layer only. Functional selectors from V1.1 preserved.
   ========================================================= */
:root{
  --v2-deep:#031b1a;
  --v2-deep-2:#052725;
  --v2-cyan:#20d9c2;
  --v2-cyan-soft:#7cebdc;
  --v2-orange:#ff7a1a;
  --v2-glass:rgba(255,255,255,.76);
  --v2-glass-strong:rgba(255,255,255,.90);
  --v2-stroke:rgba(255,255,255,.72);
  --v2-glow:0 28px 70px rgba(5,66,61,.14);
  --v2-ease:cubic-bezier(.2,.8,.2,1);
  --radius:22px;
  --shadow:var(--v2-glow);
}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(circle at 12% 8%,rgba(32,217,194,.14),transparent 28%),
    radial-gradient(circle at 88% 15%,rgba(255,122,26,.10),transparent 22%),
    linear-gradient(145deg,#e9f5f2 0%,#f7fbfa 46%,#eaf4f2 100%);
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;opacity:.36;
  background-image:
    linear-gradient(rgba(8,80,73,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(8,80,73,.035) 1px,transparent 1px);
  background-size:38px 38px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.72),transparent 86%);
  animation:v2GridDrift 24s linear infinite;
}
body::after{
  content:"";position:fixed;width:42vw;height:42vw;min-width:420px;min-height:420px;left:48%;top:38%;pointer-events:none;z-index:-1;border-radius:50%;filter:blur(90px);opacity:.16;
  background:conic-gradient(from 180deg,var(--v2-cyan),transparent 30%,var(--v2-orange),transparent 68%,var(--v2-cyan));
  animation:v2Aurora 18s ease-in-out infinite alternate;
}
@keyframes v2GridDrift{to{background-position:38px 38px}}
@keyframes v2Aurora{0%{transform:translate(-28%,-22%) scale(.88) rotate(0)}100%{transform:translate(12%,8%) scale(1.12) rotate(36deg)}}
@keyframes v2Float{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes v2Pulse{0%,100%{box-shadow:0 0 0 0 rgba(32,217,194,.25)}50%{box-shadow:0 0 0 7px rgba(32,217,194,0)}}
@keyframes v2PanelIn{from{opacity:0;transform:translateY(11px) scale(.992)}to{opacity:1;transform:none}}
@keyframes v2SlideIn{from{opacity:0;transform:translateX(-10px)}to{opacity:1;transform:none}}
@keyframes v2Shimmer{0%{transform:translateX(-160%) skewX(-20deg)}100%{transform:translateX(320%) skewX(-20deg)}}
@keyframes v2RingGrow{from{--p:0}}
@property --p{syntax:"<number>";inherits:false;initial-value:0}

/* Boot */
.boot{color:#086b61;position:relative}
.spinner{width:42px;height:42px;border-width:3px;border-color:rgba(9,113,102,.14);border-top-color:var(--v2-cyan);box-shadow:0 0 24px rgba(32,217,194,.22)}

/* Authentication */
.auth-wrap{
  position:relative;isolation:isolate;overflow:hidden;
  background:
    radial-gradient(circle at 18% 20%,rgba(32,217,194,.22),transparent 28%),
    radial-gradient(circle at 42% 78%,rgba(255,122,26,.13),transparent 24%),
    linear-gradient(135deg,#021413 0%,#032d29 45%,#07554d 100%);
}
.auth-wrap::before{
  content:"";position:absolute;inset:-30%;z-index:-1;opacity:.38;
  background:
    radial-gradient(circle,rgba(255,255,255,.24) 1px,transparent 1.6px) 0 0/52px 52px,
    linear-gradient(120deg,transparent 30%,rgba(32,217,194,.12),transparent 62%);
  animation:v2Aurora 22s ease-in-out infinite alternate;
}
.auth-hero{padding:64px 7vw;background:linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.22));border-right:1px solid rgba(255,255,255,.08)}
.auth-hero::before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;left:-110px;bottom:-120px;border:1px solid rgba(124,235,220,.18);box-shadow:0 0 0 42px rgba(124,235,220,.035),0 0 0 84px rgba(124,235,220,.02);animation:v2Float 8s ease-in-out infinite}
.auth-hero:after{border-color:rgba(124,235,220,.18);box-shadow:0 0 0 60px rgba(32,217,194,.035),0 0 0 120px rgba(255,122,26,.018);animation:v2Float 10s ease-in-out infinite reverse}
.brand-mark{position:relative;isolation:isolate;overflow:hidden;background:linear-gradient(145deg,#ff954e,#ff6508 62%,#ff4a00);box-shadow:0 14px 36px rgba(255,103,12,.27),inset 0 1px 0 rgba(255,255,255,.5)}
.brand-mark::after{content:"";position:absolute;inset:-80% auto -80% -55%;width:42%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);transform:skewX(-20deg);animation:v2Shimmer 6s ease-in-out infinite}
.auth-copy h1{text-wrap:balance;text-shadow:0 14px 45px rgba(0,0,0,.22)}
.auth-copy p{color:#c9e8e3}
.auth-pills span{backdrop-filter:blur(12px);background:rgba(255,255,255,.075);border-color:rgba(124,235,220,.16);box-shadow:inset 0 1px 0 rgba(255,255,255,.08);transition:.28s var(--v2-ease)}
.auth-pills span:hover{transform:translateY(-3px);background:rgba(32,217,194,.12);border-color:rgba(124,235,220,.32)}
.auth-side{position:relative;background:rgba(239,249,247,.86);backdrop-filter:blur(24px)}
.auth-card{position:relative;overflow:hidden;background:rgba(255,255,255,.82);backdrop-filter:blur(26px) saturate(135%);border:1px solid rgba(255,255,255,.82);box-shadow:0 36px 90px rgba(0,36,32,.24),inset 0 1px 0 rgba(255,255,255,.95);animation:v2PanelIn .65s var(--v2-ease) both}
.auth-card::before{content:"";position:absolute;inset:0 0 auto;height:2px;background:linear-gradient(90deg,transparent,var(--v2-cyan),var(--v2-orange),transparent);opacity:.88}
.auth-card h2{letter-spacing:-.035em}

/* App shell */
.shell{position:relative;isolation:isolate;background:transparent}
.sidebar{
  background:
    radial-gradient(circle at 20% 10%,rgba(32,217,194,.13),transparent 25%),
    linear-gradient(180deg,#031f1d 0%,#042b28 48%,#021918 100%);
  border-right:1px solid rgba(124,235,220,.10);box-shadow:14px 0 60px rgba(0,35,32,.10);overflow:hidden;
}
.sidebar::before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(120deg,transparent 0 45%,rgba(32,217,194,.045) 50%,transparent 55%);background-size:260% 100%;animation:v2SidebarSweep 12s linear infinite}
@keyframes v2SidebarSweep{to{background-position:-260% 0}}
.side-brand,.nav,.side-profile{position:relative;z-index:1}
.side-brand{border-bottom:1px solid rgba(255,255,255,.06);margin-bottom:8px}
.side-brand .brand-mark{box-shadow:0 10px 26px rgba(255,108,20,.22)}
.nav-group>span{color:#6fa49c}
.nav button{position:relative;overflow:hidden;transition:background .22s var(--v2-ease),transform .22s var(--v2-ease),color .22s var(--v2-ease);border:1px solid transparent}
.nav button:hover{transform:translateX(3px);background:rgba(32,217,194,.07);border-color:rgba(124,235,220,.08)}
.nav button.active{background:linear-gradient(90deg,rgba(32,217,194,.14),rgba(255,122,26,.055));color:#fff;border-color:rgba(124,235,220,.11);box-shadow:inset 2px 0 0 var(--v2-cyan),0 7px 20px rgba(0,0,0,.08)}
.nav button.active::after{content:"";position:absolute;right:9px;width:5px;height:5px;border-radius:50%;background:var(--v2-cyan);box-shadow:0 0 12px var(--v2-cyan);animation:v2Pulse 2.4s ease-in-out infinite}
.side-profile{background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.055);border-radius:16px;padding:10px;margin-top:auto}
.side-profile .avatar{box-shadow:0 0 0 1px rgba(124,235,220,.16),0 0 24px rgba(32,217,194,.10)}
.main{position:relative;min-height:100vh;background:
  radial-gradient(circle at 88% 2%,rgba(32,217,194,.10),transparent 22%),
  radial-gradient(circle at 62% 90%,rgba(255,122,26,.075),transparent 22%),
  linear-gradient(145deg,rgba(239,248,246,.94),rgba(250,252,252,.96));
}
.main::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.42;background-image:linear-gradient(rgba(6,78,71,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(6,78,71,.025) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to bottom,#000,transparent 75%);animation:v2GridDrift 30s linear infinite}
.topbar{height:72px;background:rgba(247,251,250,.72);backdrop-filter:blur(22px) saturate(145%);border-bottom:1px solid rgba(7,89,81,.08);box-shadow:0 10px 32px rgba(5,55,50,.045)}
.top-title b{letter-spacing:-.02em}
.top-title small{letter-spacing:.02em}
.status-dot{background:rgba(232,248,242,.72);backdrop-filter:blur(12px);border-color:rgba(26,167,128,.18);box-shadow:inset 0 1px 0 rgba(255,255,255,.7)}
.status-dot:before{box-shadow:0 0 0 4px rgba(32,169,127,.10);animation:v2Pulse 2.4s infinite}
.avatar{background:linear-gradient(145deg,#e4fbf6,#cceee7);box-shadow:inset 0 1px 0 rgba(255,255,255,.85),0 8px 24px rgba(4,83,74,.10)}
.content{position:relative;z-index:1;animation:v2PanelIn .38s var(--v2-ease) both;padding-top:25px;padding-bottom:86px}
.title-row h1{font-size:clamp(25px,2.1vw,31px);letter-spacing:-.045em}
.title-row small{color:#68877f}
.footer-note{position:relative;z-index:1}

/* Glass cards and content */
.panel{position:relative;background:var(--v2-glass);backdrop-filter:blur(20px) saturate(135%);border:1px solid rgba(255,255,255,.84);box-shadow:0 18px 48px rgba(5,63,58,.085),inset 0 1px 0 rgba(255,255,255,.9);transition:transform .28s var(--v2-ease),box-shadow .28s var(--v2-ease),border-color .28s var(--v2-ease)}
.panel::before{content:"";position:absolute;left:20px;right:20px;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(32,217,194,.42),rgba(255,122,26,.18),transparent);opacity:.45;pointer-events:none}
.panel:hover{transform:translateY(-2px);box-shadow:0 26px 64px rgba(5,63,58,.12),inset 0 1px 0 rgba(255,255,255,.95);border-color:rgba(255,255,255,.96)}
.cards>.panel:nth-child(1){animation:v2PanelIn .42s .02s var(--v2-ease) both}.cards>.panel:nth-child(2){animation:v2PanelIn .42s .07s var(--v2-ease) both}.cards>.panel:nth-child(3){animation:v2PanelIn .42s .12s var(--v2-ease) both}.cards>.panel:nth-child(4){animation:v2PanelIn .42s .17s var(--v2-ease) both}.cards>.panel:nth-child(5){animation:v2PanelIn .42s .22s var(--v2-ease) both}
.metric{min-height:132px}
.metric::after{width:126px;height:126px;right:-50px;top:-50px;filter:saturate(1.15);opacity:.72;transition:transform .4s var(--v2-ease)}
.metric:hover::after{transform:scale(1.18) translate(-4px,4px)}
.metric .ico{width:42px;height:42px;border-radius:14px;box-shadow:inset 0 1px 0 rgba(255,255,255,.75),0 10px 22px rgba(4,68,61,.08);transition:transform .28s var(--v2-ease)}
.metric:hover .ico{transform:translateY(-3px) rotate(-3deg)}
.metric .value{font-size:26px;background:linear-gradient(100deg,#12312d,#086e62);-webkit-background-clip:text;background-clip:text;color:transparent}
.metric .label{font-size:10px;font-weight:700;letter-spacing:.015em}
.filterbar{background:rgba(255,255,255,.68);backdrop-filter:blur(16px);border-color:rgba(255,255,255,.88);box-shadow:0 12px 30px rgba(5,63,58,.055)}
.table-wrap{background:rgba(255,255,255,.78)}
.table tbody tr{transition:background .18s ease,transform .18s ease}
.table tbody tr:hover{background:rgba(32,217,194,.045)}
.table th{color:#66827c}
.table td{border-bottom-color:rgba(8,93,85,.07)}

/* Inputs and buttons */
.input,.field input,.field select,.field textarea{background:rgba(255,255,255,.86);border-color:rgba(12,93,84,.13);box-shadow:inset 0 1px 0 rgba(255,255,255,.8);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.input:focus,.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(32,217,194,.72);box-shadow:0 0 0 4px rgba(32,217,194,.10),0 10px 26px rgba(4,83,74,.06);transform:translateY(-1px)}
.btn{position:relative;overflow:hidden;transition:transform .2s var(--v2-ease),box-shadow .2s var(--v2-ease),filter .2s ease}
.btn::after{content:"";position:absolute;inset:-100% auto -100% -55%;width:34%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.38),transparent);transform:skewX(-20deg);transition:left .5s var(--v2-ease)}
.btn:hover::after{left:130%}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.985)}
.btn.primary{background:linear-gradient(135deg,#08796c,#15ad99 58%,#24cbb5);box-shadow:0 12px 28px rgba(11,143,126,.20),inset 0 1px 0 rgba(255,255,255,.28)}
.btn.orange{background:linear-gradient(135deg,#ff6910,#ff8c36);box-shadow:0 12px 27px rgba(255,110,20,.22),inset 0 1px 0 rgba(255,255,255,.28)}
.btn.secondary{background:rgba(255,255,255,.78);backdrop-filter:blur(10px);border-color:rgba(9,91,82,.11);box-shadow:0 7px 18px rgba(3,68,60,.055)}

/* Progress and learning */
.progress{height:8px;background:rgba(9,84,76,.08);box-shadow:inset 0 1px 2px rgba(5,61,55,.08)}
.progress>span{position:relative;background:linear-gradient(90deg,#0e9c8a,#28d5bd,#7cebdc);box-shadow:0 0 13px rgba(32,217,194,.26);transition:width .8s var(--v2-ease)}
.progress>span::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);animation:v2ProgressShine 3s linear infinite}
@keyframes v2ProgressShine{from{transform:translateX(-100%)}to{transform:translateX(220%)}}
.student-hero{
  min-height:190px;padding:30px 32px;border-radius:28px;
  background:
    radial-gradient(circle at 78% 28%,rgba(32,217,194,.26),transparent 25%),
    radial-gradient(circle at 18% 112%,rgba(255,122,26,.22),transparent 30%),
    linear-gradient(125deg,#031f1d 0%,#054941 58%,#087367 100%);
  border:1px solid rgba(124,235,220,.12);box-shadow:0 28px 68px rgba(4,56,51,.22);isolation:isolate;
}
.student-hero::before{content:"";position:absolute;inset:0;z-index:-1;opacity:.35;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(90deg,transparent,#000)}
.student-hero:after{width:330px;height:330px;border-color:rgba(124,235,220,.14);box-shadow:0 0 0 50px rgba(32,217,194,.025),0 0 0 100px rgba(255,122,26,.015);animation:v2Float 10s ease-in-out infinite}
.student-hero small{letter-spacing:.14em;color:#83d8cc;font-weight:900}
.student-hero h1{font-size:clamp(31px,3vw,44px);text-shadow:0 12px 38px rgba(0,0,0,.20)}
.student-hero p{font-size:13px;color:#bfe2dc}
.ring{width:120px;height:120px;background:conic-gradient(#ff8e3c calc(var(--p)*1%),rgba(255,255,255,.13) 0);box-shadow:0 0 0 1px rgba(255,255,255,.10),0 0 34px rgba(255,122,26,.17);animation:v2RingGrow 1.1s .15s var(--v2-ease) both,v2Float 6s 1.3s ease-in-out infinite}
.ring:after{width:86px;height:86px;background:linear-gradient(145deg,#063f3a,#0b5c53);box-shadow:inset 0 0 20px rgba(0,0,0,.16),0 0 0 1px rgba(255,255,255,.08)}
.ring strong{font-size:22px;text-shadow:0 4px 15px rgba(0,0,0,.22)}
.course-card{border-radius:22px}
.course-card:hover{transform:translateY(-5px)}
.course-cover{height:150px;background:
  radial-gradient(circle at 80% 20%,rgba(124,235,220,.26),transparent 27%),
  linear-gradient(135deg,#063d38,#087b6d 65%,#13aa96);overflow:hidden}
.course-cover::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:25px 25px;mask-image:linear-gradient(90deg,transparent,#000);opacity:.7}
.course-cover:after{border-color:rgba(124,235,220,.17);box-shadow:0 0 0 30px rgba(32,217,194,.04),0 0 0 60px rgba(255,122,26,.018)}
.course-cover b{font-size:21px;text-shadow:0 6px 22px rgba(0,0,0,.20)}
.lesson{background:rgba(255,255,255,.74);border-color:rgba(9,89,81,.09);transition:transform .22s var(--v2-ease),border-color .22s ease,box-shadow .22s ease}
.lesson:hover{transform:translateX(3px);border-color:rgba(32,217,194,.28);box-shadow:0 10px 26px rgba(5,65,59,.065)}
.lesson .num{background:linear-gradient(145deg,#e7f8f4,#d5f1eb);box-shadow:inset 0 1px 0 rgba(255,255,255,.9)}
.module{background:rgba(255,255,255,.68);backdrop-filter:blur(14px);border-color:rgba(9,89,81,.09);box-shadow:0 12px 30px rgba(5,63,58,.05)}
.module-head{background:rgba(242,249,247,.78)}
.video-shell{border-radius:20px;box-shadow:0 22px 52px rgba(1,24,22,.20),0 0 0 1px rgba(32,217,194,.13);position:relative}
.video-shell::after{content:"";position:absolute;inset:0;pointer-events:none;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05)}

/* Live and notices */
.live-card{overflow:hidden;background:linear-gradient(135deg,rgba(255,255,255,.84),rgba(255,245,246,.78));box-shadow:0 18px 48px rgba(120,35,44,.07)}
.live-card::after{content:"LIVE";position:absolute;right:15px;top:13px;font-size:8px;font-weight:1000;letter-spacing:.14em;color:#e04752;background:#fff0f1;border:1px solid #ffd6da;border-radius:999px;padding:5px 7px;animation:v2Pulse 2.2s infinite}
.live-card.upcoming::after{content:"PRÓXIMA";color:#aa5a13;background:#fff2e8;border-color:#ffd9bf}
.notice{background:linear-gradient(135deg,rgba(238,248,245,.88),rgba(255,255,255,.70));border-color:rgba(18,156,138,.11);box-shadow:inset 3px 0 0 rgba(32,217,194,.28)}
.calendar-item{background:rgba(255,255,255,.60);backdrop-filter:blur(12px);transition:transform .2s ease,border-color .2s ease}
.calendar-item:hover{transform:translateX(3px);border-color:rgba(32,217,194,.24)}
.calendar-date{background:linear-gradient(145deg,#e9faf6,#d8f2ec);box-shadow:inset 0 1px 0 rgba(255,255,255,.9)}

/* Modals and feedback */
.modal-back{background:rgba(1,22,20,.68);backdrop-filter:blur(10px) saturate(115%)}
.modal{background:rgba(255,255,255,.92);backdrop-filter:blur(28px) saturate(135%);border-color:rgba(255,255,255,.82);box-shadow:0 38px 100px rgba(0,31,28,.32);animation:v2PanelIn .28s var(--v2-ease) both}
.modal-head button{transition:transform .18s ease,background .18s ease}
.modal-head button:hover{transform:rotate(6deg);background:#e5f4f0}
.toast{backdrop-filter:blur(14px);box-shadow:0 18px 44px rgba(0,0,0,.20);animation:v2ToastIn .28s var(--v2-ease) both}
@keyframes v2ToastIn{from{opacity:0;transform:translateY(12px) scale(.96)}to{opacity:1;transform:none}}

/* Futuristic mobile dock */
.mobile-dock{display:none}
@media(max-width:760px){
  body::before{background-size:30px 30px;opacity:.25}
  .main{padding-bottom:76px}
  .content{padding-bottom:24px}
  .sidebar{left:-290px;width:272px;border-radius:0 24px 24px 0;transition:left .3s var(--v2-ease),box-shadow .3s ease}
  .sidebar.open{left:0;box-shadow:28px 0 80px rgba(0,29,27,.35)}
  .topbar{height:64px}
  .mobile-dock{
    position:fixed;left:10px;right:10px;bottom:max(10px,env(safe-area-inset-bottom));z-index:80;
    display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:7px;
    background:rgba(3,32,30,.88);backdrop-filter:blur(22px) saturate(150%);
    border:1px solid rgba(124,235,220,.14);border-radius:20px;
    box-shadow:0 22px 55px rgba(0,31,28,.30),inset 0 1px 0 rgba(255,255,255,.06)
  }
  .mobile-dock button{border:0;background:transparent;color:#91bcb5;display:grid;place-items:center;gap:2px;border-radius:14px;padding:7px 3px;font-size:18px;min-width:0;transition:.2s var(--v2-ease)}
  .mobile-dock button span{font-size:8px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
  .mobile-dock button.active{color:white;background:linear-gradient(145deg,rgba(32,217,194,.16),rgba(255,122,26,.08));box-shadow:inset 0 0 0 1px rgba(124,235,220,.10)}
  .mobile-dock button.active::before{content:"";position:absolute;margin-top:-44px;width:24px;height:2px;border-radius:999px;background:var(--v2-cyan);box-shadow:0 0 11px var(--v2-cyan)}
  .student-hero{padding:22px;min-height:170px}
  .panel:hover,.course-card:hover{transform:none}
}
@media(max-width:430px){
  .student-hero{border-radius:22px}
  .ring{width:92px;height:92px}.ring:after{width:66px;height:66px}
  .mobile-dock{left:7px;right:7px;bottom:max(7px,env(safe-area-inset-bottom));border-radius:18px}
}

/* Accessibility / performance */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}
@media(prefers-contrast:more){.panel,.auth-card,.modal{background:#fff;border-color:#78958f}.nav button.active{outline:2px solid #fff}}