:root{
  --bg:#07090A; --bg2:#0B0F10; --card:#0E1413; --card2:#141C18;
  --line:#1C2622; --line2:#243029;
  --txt:#EAF2EE; --muted:#93A39B; --muted2:#56655E;
  --green:#2EFF9B; --green2:#19C97B; --glow:rgba(46,255,155,.28);
  --grad:linear-gradient(135deg,#2EFF9B 0%,#19C97B 100%);
  --grad-soft:linear-gradient(135deg,rgba(46,255,155,.16),rgba(25,201,123,.10));
  --radius:18px; --radius-sm:12px;
  --shadow:0 18px 50px -14px rgba(0,0,0,.7);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Space Grotesk',system-ui,sans-serif;background:var(--bg);color:var(--txt);
  line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
h1,h2,h3,.font-display{font-family:'Space Grotesk',sans-serif;font-weight:700;letter-spacing:-.02em}
.mono{font-family:'JetBrains Mono',monospace}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* topbar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(7,9,10,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;gap:18px;height:66px}
.logo{font-family:'Space Grotesk';font-weight:700;font-size:22px;letter-spacing:-.03em;display:flex;align-items:center;gap:9px}
.logo .dot{width:11px;height:11px;border-radius:50%;background:var(--grad);box-shadow:0 0 14px var(--glow)}
.logo b{font-weight:700}
.logo .mono{font-size:12px;color:var(--green);font-weight:500;letter-spacing:.05em}
.topbar .search{flex:1;max-width:430px;position:relative}
.topbar .search input{width:100%;background:var(--card);border:1px solid var(--line);color:var(--txt);
  padding:11px 16px;border-radius:999px;font-size:14px;outline:none;font-family:inherit}
.topbar .search input:focus{border-color:var(--green2)}
.topbar .spacer{flex:1}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--grad);display:grid;place-items:center;
  font-weight:700;font-size:15px;color:#04140C;border:2px solid rgba(46,255,155,.25)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;cursor:pointer;border:none;
  font-family:'Space Grotesk';font-weight:600;font-size:15px;padding:13px 24px;border-radius:12px;
  color:#04140C;background:var(--grad);transition:transform .15s,box-shadow .15s;
  box-shadow:0 10px 26px -10px var(--glow)}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px -10px var(--glow)}
.btn.full{width:100%}
.btn.ghost{background:var(--card2);box-shadow:none;border:1px solid var(--line2);color:var(--txt)}
.btn.ghost:hover{border-color:var(--green2)}
.btn.sm{padding:10px 16px;font-size:13px}

/* login */
.login-split{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}
.login-aside{position:relative;background:var(--bg2) center/cover;overflow:hidden;display:flex;align-items:flex-end}
.login-aside .ph{position:absolute;inset:0;background:center/cover}
.login-aside::after{content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,9,10,.15) 0%,rgba(7,9,10,.55) 60%,rgba(7,9,10,.95) 100%)}
.login-aside .cap{position:relative;z-index:2;padding:46px}
.login-aside .cap .mono{color:var(--green);font-size:13px;letter-spacing:.08em}
.login-aside .cap h2{font-size:30px;margin-top:8px;line-height:1.15;max-width:380px}
.login-main{display:grid;place-items:center;padding:24px;
  background:radial-gradient(700px 400px at 50% -10%,rgba(46,255,155,.10),transparent),var(--bg)}
.login-card{width:100%;max-width:380px}
.login-card .logo{font-size:26px;margin-bottom:4px}
.login-card .sub{color:var(--muted);font-size:14px;margin-bottom:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:7px;font-family:'JetBrains Mono';letter-spacing:.04em}
.field input{width:100%;background:var(--bg2);border:1px solid var(--line);color:var(--txt);
  padding:14px 16px;border-radius:12px;font-size:15px;outline:none;transition:border-color .15s;font-family:inherit}
.field input:focus{border-color:var(--green2)}
.erro{background:rgba(255,92,92,.12);border:1px solid rgba(255,92,92,.35);color:#ff9d9d;
  padding:11px 14px;border-radius:10px;font-size:13px;margin-bottom:16px}
.muted-link{display:block;text-align:center;color:var(--muted);font-size:13px;margin-top:18px}
.demo-hint{margin-top:22px;padding:12px;border-radius:10px;background:var(--grad-soft);
  font-size:12px;color:var(--muted);text-align:center;border:1px solid var(--line);font-family:'JetBrains Mono'}
@media(max-width:820px){.login-split{grid-template-columns:1fr}.login-aside{display:none}}

/* sections */
.section{margin:40px 0}
.section-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.section-head h2{font-size:21px}
.section-head .rule{flex:1;height:1px;background:var(--line)}
.hello{font-size:30px;margin:34px 0 4px}
.hello .muted{color:var(--muted);font-weight:400;font-size:15px}

/* continuar assistindo */
.continue{position:relative;display:flex;gap:20px;align-items:center;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;padding:0;margin-top:8px}
.continue .thumb{width:300px;min-height:170px;align-self:stretch;background:var(--card2) center/cover;position:relative;flex:none}
.continue .thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(14,20,19,.6))}
.continue .play-fab{position:absolute;inset:0;margin:auto;width:56px;height:56px;border-radius:50%;
  background:var(--grad);display:grid;place-items:center;color:#04140C;font-size:20px;z-index:2;box-shadow:0 0 24px var(--glow)}
.continue .info{padding:22px 26px;flex:1}
.continue .info .mono{color:var(--green);font-size:12px;letter-spacing:.06em}
.continue .info h3{font-size:21px;margin:6px 0 4px}
.continue .info p{color:var(--muted);font-size:13px;margin-bottom:14px}
@media(max-width:720px){.continue{flex-direction:column}.continue .thumb{width:100%}}

/* course cards */
.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px}
.course-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .18s,border-color .18s;display:flex;flex-direction:column}
.course-card:hover{transform:translateY(-4px);border-color:var(--green2)}
.course-card .thumb{aspect-ratio:16/9;background:var(--card2) center/cover;position:relative}
.course-card .thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,9,10,.55))}
.course-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.course-card h3{font-size:17px;margin-bottom:6px}
.course-card .desc{color:var(--muted);font-size:13px;margin-bottom:16px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.progress{height:7px;border-radius:99px;background:var(--bg2);overflow:hidden}
.progress > i{display:block;height:100%;background:var(--grad);border-radius:99px;box-shadow:0 0 10px var(--glow)}
.progress-row{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin:9px 0 16px;font-family:'JetBrains Mono'}
.progress-row b{color:var(--green)}
.vit-card .thumb{filter:grayscale(.3)}
.vit-badge{position:absolute;top:12px;left:12px;background:rgba(7,9,10,.6);backdrop-filter:blur(6px);
  font-size:11px;padding:6px 11px;border-radius:99px;font-weight:600;z-index:2;border:1px solid var(--line2);font-family:'JetBrains Mono';color:var(--green)}

/* curso */
.curso-hero{position:relative;border-radius:var(--radius);overflow:hidden;margin-top:28px;min-height:300px;
  display:flex;align-items:flex-end;background:var(--card2) center/cover}
.curso-hero::after{content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,9,10,.94) 0%,rgba(7,9,10,.6) 55%,transparent)}
.curso-hero .inner{position:relative;z-index:2;padding:38px 40px;max-width:640px}
.curso-hero h1{font-size:33px;margin-bottom:10px}
.curso-hero p{color:#cfe0d8;font-size:15px;margin-bottom:18px}
.curso-meta{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin:16px 0 8px}
.curso-meta .big{font-size:13px;color:var(--muted);font-family:'JetBrains Mono'}
.curso-meta .pct{font-family:'JetBrains Mono';font-weight:700;font-size:15px}

.modulo{margin-top:30px}
.modulo-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:14px}
.modulo-head h3{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-family:'JetBrains Mono'}
.modulo-head .mp{font-size:11px;color:var(--green);font-family:'JetBrains Mono'}
.modulo-bar{height:5px;border-radius:99px;background:var(--bg2);overflow:hidden;margin-bottom:14px}
.modulo-bar > i{display:block;height:100%;background:var(--grad);border-radius:99px}
.aula-row{display:flex;align-items:center;gap:16px;background:var(--card);border:1px solid var(--line);
  border-radius:14px;padding:15px 18px;margin-bottom:10px;transition:border-color .15s,background .15s}
.aula-row:hover{border-color:var(--green2);background:var(--card2)}
.aula-row .play{width:42px;height:42px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line2);font-size:15px;color:var(--green)}
.aula-row.done .play{background:var(--grad);border:none;color:#04140C}
.aula-row .meta{flex:1;min-width:0}
.aula-row .meta b{display:block;font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.aula-row .meta span{font-size:12px;color:var(--muted)}
.aula-row .dur{font-size:12px;color:var(--muted2);flex:none;font-family:'JetBrains Mono'}

/* player */
.player-grid{display:grid;grid-template-columns:1fr 340px;gap:26px;margin-top:24px;align-items:start}
.video-box{aspect-ratio:16/9;background:#000;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.video-box iframe{width:100%;height:100%;border:0}
.aula-title{font-size:25px;margin:22px 0 6px}
.aula-crumb{font-size:12px;color:var(--green);text-transform:uppercase;letter-spacing:.1em;font-family:'JetBrains Mono'}
.aula-desc{color:var(--muted);font-size:15px;margin:10px 0 22px}
.aula-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.aula-actions .ck{font-size:12px}
.nav-aulas{display:flex;justify-content:space-between;gap:12px;margin-top:8px}
.nav-aulas a{flex:1;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;transition:border-color .15s}
.nav-aulas a:hover{border-color:var(--green2)}
.nav-aulas .lbl{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-family:'JetBrains Mono'}
.nav-aulas .tit{font-weight:600;font-size:14px;margin-top:3px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.nav-aulas .nxt{text-align:right}
.note-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-top:16px}
.note-card label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;display:block;margin-bottom:10px;font-family:'JetBrains Mono'}
.note-card textarea{width:100%;min-height:120px;background:var(--bg2);border:1px solid var(--line);color:var(--txt);
  border-radius:10px;padding:12px;font-family:'Space Grotesk';font-size:14px;resize:vertical;outline:none}
.note-card textarea:focus{border-color:var(--green2)}
.note-save{font-size:12px;color:var(--green);margin-top:8px;height:14px;font-family:'JetBrains Mono'}
.side-aulas{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:sticky;top:84px}
.side-aulas .sh{padding:16px 18px;border-bottom:1px solid var(--line);font-weight:600;font-size:14px}
.side-aulas .list{max-height:62vh;overflow-y:auto}
.side-item{display:flex;align-items:center;gap:12px;padding:13px 18px;border-bottom:1px solid var(--line);font-size:13px;transition:background .12s}
.side-item:hover{background:var(--card2)}
.side-item.active{background:var(--grad-soft);border-left:3px solid var(--green)}
.side-item .ck{width:22px;height:22px;border-radius:50%;flex:none;display:grid;place-items:center;font-size:11px;
  background:var(--bg2);border:1px solid var(--line2);color:var(--muted);font-family:'JetBrains Mono'}
.side-item.done .ck{background:var(--grad);border:none;color:#04140C}
.side-item .t{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.empty{color:var(--muted);font-size:14px;padding:30px;text-align:center;border:1px dashed var(--line2);border-radius:14px}
.bottomnav{display:none}
@media(max-width:880px){
  .player-grid{grid-template-columns:1fr}.side-aulas{position:static}
  .curso-hero h1{font-size:25px}.topbar .search{display:none}
  .bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:60;background:rgba(7,9,10,.93);
    backdrop-filter:blur(14px);border-top:1px solid var(--line);justify-content:space-around;padding:9px 0 calc(9px + env(safe-area-inset-bottom))}
  .bottomnav a{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10px;color:var(--muted);flex:1}
  .bottomnav a.active{color:var(--green)}
  .bottomnav .ic{font-size:18px}
  body{padding-bottom:66px}
}