:root{
  --bg:#08080d; --bg2:#0c0c14;
  --panel:#111119; --panel2:#16161f; --panel3:#1d1d29;
  --line:#23232f; --line2:#2e2e3d;
  --txt:#f1f2f7; --mut:#9b9fb0; --mut2:#6a6e80;
  --pink:#fe2c55; --pink2:#ff5b7c;
  --cyan:#25f4ee; --cyan2:#6df8f3;
  --pink-soft:rgba(254,44,85,.14); --cyan-soft:rgba(37,244,238,.12);
  --ok:#25f4ee; --err:#ff6b6b;
  --grad:linear-gradient(135deg,var(--pink),#b5179e 55%,var(--cyan));
  --shadow:0 20px 60px rgba(0,0,0,.55);
  --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  background:
    radial-gradient(1000px 500px at 100% -10%, rgba(37,244,238,.08), transparent 60%),
    radial-gradient(900px 460px at -6% 0%, rgba(254,44,85,.10), transparent 55%),
    var(--bg);
  color:var(--txt);
  font-family:"Plus Jakarta Sans",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;
}
.hidden{display:none!important}
.only-mobile{display:none}

/* ---- glitch wordmark ---- */
.logo{position:relative;font-weight:800;letter-spacing:.04em;font-size:18px;color:#fff;cursor:pointer;
  display:inline-flex;align-items:center;line-height:1;user-select:none}
.logo .dot{width:9px;height:9px;border-radius:50%;margin-right:9px;background:var(--grad);
  box-shadow:0 0 12px rgba(254,44,85,.7)}
.logo b{position:relative}
.logo b::before,.logo b::after{content:attr(data-t);position:absolute;left:0;top:0;opacity:.85;pointer-events:none}
.logo b::before{color:var(--cyan);transform:translate(-1.5px,0)}
.logo b::after{color:var(--pink);transform:translate(1.5px,0)}
.logo b span{position:relative;color:#fff;z-index:1}

/* ===== LOGIN ===== */
.login{position:fixed;inset:0;display:grid;grid-template-columns:1.05fr .95fr}
.login-aside{position:relative;overflow:hidden;padding:56px 50px;display:flex;flex-direction:column;justify-content:center;gap:18px;
  background:linear-gradient(155deg,#160c14 0%,#0a0a12 60%);border-right:1px solid var(--line)}
.login-aside h2{font-size:34px;line-height:1.18;margin:10px 0 4px;max-width:440px;font-weight:800;
  background:linear-gradient(110deg,#fff 20%, var(--pink2) 60%, var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.login-points{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-direction:column;gap:13px;color:var(--mut)}
.login-points li{display:flex;align-items:center;gap:11px;font-weight:500}
.login-points li::before{content:"";flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--grad);
  box-shadow:0 4px 14px rgba(254,44,85,.35)}
.login-aside-glow{position:absolute;width:460px;height:460px;right:-160px;bottom:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(254,44,85,.4),transparent 60%);filter:blur(30px)}
.login-aside-glow.c{right:auto;left:-180px;top:-160px;background:radial-gradient(circle,rgba(37,244,238,.32),transparent 60%)}
.login-card{display:flex;flex-direction:column;gap:14px;justify-content:center;padding:54px 58px;max-width:470px;width:100%;margin:0 auto}
.mobile-brand{display:none;margin-bottom:8px}
.login-card h1{margin:0;font-size:27px;font-weight:800}
.login-card .sub{margin:0 0 10px;color:var(--mut)}
.login-card label{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:700;color:var(--mut);text-transform:uppercase;letter-spacing:.05em}
.login-card input{background:var(--panel2);border:1px solid var(--line2);color:var(--txt);
  border-radius:12px;padding:13px 14px;font-size:15px;font-family:inherit;outline:none;transition:.16s}
.login-card input::placeholder{color:var(--mut2);text-transform:none;letter-spacing:0;font-weight:400}
.login-card input:focus{border-color:var(--pink);box-shadow:0 0 0 4px var(--pink-soft)}
.login-card button{margin-top:8px;background:var(--grad);color:#fff;border:0;border-radius:12px;
  padding:14px;font-size:15px;font-weight:800;cursor:pointer;font-family:inherit;transition:transform .08s,filter .15s;
  box-shadow:0 10px 30px rgba(254,44,85,.3)}
.login-card button:hover{filter:brightness(1.08)}
.login-card button:active{transform:translateY(1px)}
.login-card button:disabled{opacity:.6;cursor:default}
.err{color:var(--err);font-size:13px;min-height:18px;font-weight:600}

/* ===== APP SHELL ===== */
.app{height:100vh;display:flex;flex-direction:column;animation:fade .4s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.topbar{height:62px;flex:0 0 62px;display:flex;align-items:center;gap:14px;padding:0 18px;
  background:rgba(12,12,20,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);z-index:30}
.top-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.top-progress{display:flex;align-items:center;gap:9px}
.tp-bar{width:120px;height:7px;border-radius:6px;background:var(--panel3);overflow:hidden;display:block}
.tp-bar i{display:block;height:100%;width:0;border-radius:6px;background:var(--grad);transition:width .5s cubic-bezier(.4,0,.2,1)}
.tp-label{font-size:12px;color:var(--mut);font-weight:800;min-width:34px}
.user-pill{display:flex;align-items:center;gap:9px;background:var(--panel2);border:1px solid var(--line);border-radius:30px;padding:4px 13px 4px 4px}
.avatar{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:13px;color:#fff;background:var(--grad)}
.uname{font-size:13px;font-weight:700;max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.icon-btn{background:var(--panel2);border:1px solid var(--line);color:var(--mut);width:38px;height:38px;border-radius:10px;
  cursor:pointer;font-size:16px;display:grid;place-items:center;transition:.15s}
.icon-btn:hover{color:#fff;border-color:var(--pink)}
/* menu (hamburger) desenhado em CSS — nitido e limpo */
.hamb{background:transparent;border:0;cursor:pointer;width:40px;height:40px;padding:0;place-items:center;
  margin-left:-6px;transition:transform .12s}
.hamb:active{transform:scale(.9)}
.hamb span,.hamb span::before,.hamb span::after{content:"";display:block;width:21px;height:2.4px;border-radius:3px;
  background:var(--txt);transition:background .15s}
.hamb span{position:relative}
.hamb span::before{position:absolute;top:-7px}
.hamb span::after{position:absolute;top:7px}
.hamb:hover span,.hamb:hover span::before,.hamb:hover span::after{background:var(--pink)}

.shell{flex:1;display:grid;grid-template-columns:330px 1fr;min-height:0;position:relative}
.scrim{display:none}

/* ===== SIDEBAR ===== */
.sidebar{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.search-wrap{padding:14px 14px 8px}
.search{width:100%;background:var(--panel2);border:1px solid var(--line2);color:var(--txt);border-radius:11px;
  padding:10px 12px;font-size:14px;font-family:inherit;outline:none;transition:.15s}
.search:focus{border-color:var(--cyan);box-shadow:0 0 0 3px var(--cyan-soft)}
.search::placeholder{color:var(--mut2)}
.home-link{margin:4px 14px 6px;display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:11px;cursor:pointer;
  background:var(--panel2);border:1px solid var(--line);color:var(--txt);font-weight:700;font-size:14px;transition:.15s}
.home-link:hover{border-color:var(--cyan)}
.home-link.active{background:var(--cyan-soft);border-color:rgba(37,244,238,.4)}
.course-nav{overflow:auto;padding:4px 10px 18px;flex:1;scrollbar-width:thin;scrollbar-color:var(--line2) transparent}
.course-nav::-webkit-scrollbar{width:8px}
.course-nav::-webkit-scrollbar-thumb{background:var(--line2);border-radius:8px}

.course{margin-bottom:6px;border:1px solid transparent;border-radius:13px}
.course.open{background:var(--bg2);border-color:var(--line)}
.course-btn{width:100%;display:flex;align-items:center;gap:11px;background:transparent;border:0;color:var(--txt);
  text-align:left;padding:10px 11px;border-radius:13px;cursor:pointer;font-family:inherit}
.course-btn:hover{background:var(--panel2)}
.course-btn .idx{flex:0 0 30px;height:30px;display:grid;place-items:center;border-radius:9px;font-size:12px;font-weight:800;
  color:#fff;background:var(--grad)}
.course-mid{flex:1;min-width:0}
.course-nm{font-weight:700;font-size:13.5px;line-height:1.25;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.course-sub{display:flex;align-items:center;gap:8px;margin-top:5px}
.cbar{flex:1;height:5px;border-radius:5px;background:var(--panel3);overflow:hidden}
.cbar i{display:block;height:100%;width:0;border-radius:5px;background:var(--grad);transition:width .4s}
.cpct{font-size:11px;color:var(--mut);font-weight:800;min-width:30px;text-align:right}
.chev{color:var(--mut2);transition:transform .18s;font-size:13px}
.course.open .chev{transform:rotate(90deg)}

.lessons{display:none;padding:2px 6px 8px}
.course.open .lessons{display:block}
.lesson{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:9px;cursor:pointer;color:var(--mut);
  font-size:13px;transition:background .12s,color .12s}
.lesson:hover{background:var(--panel2);color:var(--txt)}
.lesson.active{background:linear-gradient(90deg,var(--pink-soft),transparent);color:#fff;box-shadow:inset 2px 0 0 var(--pink)}
.lesson.active .lt{font-weight:700}
.l-state{flex:0 0 18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:10px;border:1.5px solid var(--line2);color:transparent}
.lesson.done .l-state{background:var(--cyan);border-color:var(--cyan);color:#06231f}
.lesson.active .l-state{border-color:var(--pink2)}
.l-type{flex:0 0 auto;font-size:12.5px;opacity:.8}
.lt{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== MAIN ===== */
.main{min-width:0;overflow:auto;padding:24px 28px 44px}

/* ---- HOME ---- */
.home{max-width:1180px;margin:0 auto;animation:rise .4s ease}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.hero{position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--line);min-height:230px;
  display:flex;align-items:flex-end;padding:26px;box-shadow:var(--shadow);margin-bottom:14px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:saturate(1.1)}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,8,13,.94) 0%,rgba(8,8,13,.7) 45%,rgba(8,8,13,.35) 100%)}
.hero-in{position:relative;max-width:560px}
.hero-kicker{display:inline-block;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;
  color:#fff;background:var(--grad);padding:5px 11px;border-radius:20px;margin-bottom:12px}
.hero h1{margin:0 0 6px;font-size:26px;font-weight:800;line-height:1.2}
.hero p{margin:0 0 16px;color:var(--mut)}
.hero-btn{display:inline-flex;align-items:center;gap:9px;background:var(--grad);color:#fff;border:0;border-radius:12px;
  padding:13px 22px;font-size:14.5px;font-weight:800;cursor:pointer;font-family:inherit;box-shadow:0 10px 30px rgba(254,44,85,.35);transition:.12s}
.hero-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.hero-stats{display:flex;gap:22px;margin-top:14px;flex-wrap:wrap}
.hero-stats .st b{display:block;font-size:18px;font-weight:800}
.hero-stats .st span{font-size:12px;color:var(--mut)}

.sec-title{display:flex;align-items:baseline;gap:10px;margin:26px 2px 14px}
.sec-title h2{margin:0;font-size:19px;font-weight:800}
.sec-title span{color:var(--mut);font-size:13px}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:18px}
.ccard{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--panel);
  cursor:pointer;transition:transform .16s,box-shadow .16s,border-color .16s;animation:rise .4s ease both}
.ccard:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line2)}
.ccard-cover{position:relative;aspect-ratio:16/9;background:#000 var(--cv) center/cover no-repeat}
.ccard-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(8,8,13,.85))}
.ccard-badge{position:absolute;top:10px;left:10px;z-index:2;font-size:11px;font-weight:800;color:#fff;background:rgba(0,0,0,.5);
  backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.15);padding:4px 9px;border-radius:20px}
.ccard-play{position:absolute;inset:0;display:grid;place-items:center;z-index:2;opacity:0;transition:opacity .16s}
.ccard:hover .ccard-play{opacity:1}
.ccard-play span{width:54px;height:54px;border-radius:50%;background:var(--grad);display:grid;place-items:center;font-size:20px;color:#fff;
  box-shadow:0 8px 24px rgba(254,44,85,.5)}
.ccard-body{padding:13px 14px 15px}
.ccard-body h3{margin:0;font-size:14.5px;font-weight:700;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ccard-meta{display:flex;align-items:center;gap:8px;margin:7px 0 11px;color:var(--mut);font-size:12px}
.ccard-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--mut2)}
.ccard-prog{display:flex;align-items:center;gap:9px}
.ccard-prog .cbar{height:6px}
.ccard-prog .cpct{font-size:11px;color:var(--mut);font-weight:800}

/* ---- LESSON VIEW ---- */
.stage{max-width:1080px;margin:0 auto;animation:rise .35s ease}
.player{position:relative;background:#000;border:1px solid var(--line);border-radius:18px;overflow:hidden;aspect-ratio:16/9;width:100%;
  display:grid;place-items:center;box-shadow:var(--shadow)}
.player iframe{width:100%;height:100%;border:0;display:block}
.player .skeleton{position:absolute;inset:0;background:linear-gradient(100deg,#111 30%,#1b1b27 50%,#111 70%);
  background-size:200% 100%;animation:shimmer 1.3s infinite}
@keyframes shimmer{from{background-position:200% 0}to{background-position:-200% 0}}
.welcome{text-align:center;color:var(--mut);padding:24px}
.welcome-emoji{font-size:46px;margin-bottom:6px}
.welcome h2{color:var(--txt);margin:0 0 6px;font-size:24px}

.lesson-meta{max-width:1080px;margin:20px auto 0}
.lm-top{display:flex;align-items:flex-start;gap:16px}
.lm-titles{flex:1;min-width:0}
.crumb{color:var(--cyan);font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
.lm-titles h3{margin:0;font-size:22px;font-weight:800;line-height:1.25}
.lm-dur{color:var(--mut);font-size:13px;margin-top:6px}
.mark-btn{flex:0 0 auto;background:var(--panel2);border:1px solid var(--line2);color:var(--txt);border-radius:11px;
  padding:11px 17px;font-size:13.5px;font-weight:800;cursor:pointer;font-family:inherit;transition:.15s;white-space:nowrap}
.mark-btn:hover{border-color:var(--pink)}
.mark-btn.done{background:var(--cyan-soft);border-color:rgba(37,244,238,.5);color:var(--cyan2)}
.mark-btn.done::before{content:"✓ "}

.lm-body{margin-top:16px}
.pdf-list{display:flex;flex-direction:column;gap:10px}
.pdf-item{display:flex;align-items:center;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:13px;
  padding:14px 16px;text-decoration:none;color:var(--txt);transition:.15s}
.pdf-item:hover{border-color:var(--pink);transform:translateY(-1px)}
.pdf-item .ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;font-size:20px;background:var(--pink-soft)}
.pdf-item .pi-main{flex:1;min-width:0}
.pdf-item .pi-t{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pdf-item .pi-s{font-size:12px;color:var(--mut)}
.pdf-item .pi-go{color:var(--mut2)}
.note{background:var(--panel);border:1px dashed var(--line2);border-radius:13px;padding:18px;color:var(--mut)}

.lm-nav{display:flex;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
.nav-btn{flex:1;background:var(--panel2);border:1px solid var(--line2);color:var(--txt);border-radius:12px;padding:13px;
  font-size:14px;font-weight:800;cursor:pointer;font-family:inherit;transition:.15s}
.nav-btn:hover:not(:disabled){border-color:var(--cyan)}
.nav-btn.primary{background:var(--grad);border-color:transparent;box-shadow:0 8px 24px rgba(254,44,85,.28)}
.nav-btn.primary:hover:not(:disabled){filter:brightness(1.08)}
.nav-btn:disabled{opacity:.4;cursor:default}

/* toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--panel3);
  border:1px solid var(--line2);color:#fff;padding:12px 20px;border-radius:30px;font-weight:700;font-size:14px;
  box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.3s;z-index:60}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast b{color:var(--cyan)}

/* ===== RESPONSIVE ===== */
@media (max-width:880px){
  .login{grid-template-columns:1fr}
  .login-aside{display:none}
  .mobile-brand{display:flex}
  .only-mobile{display:grid}
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;top:62px;bottom:0;left:0;width:88%;max-width:330px;z-index:25;
    transform:translateX(-105%);transition:transform .22s ease;box-shadow:var(--shadow)}
  .app.nav-open .sidebar{transform:translateX(0)}
  .app.nav-open .scrim{display:block;position:fixed;inset:62px 0 0 0;background:rgba(0,0,0,.55);z-index:24}
  .top-progress{display:none}
  .main{padding:16px 14px 32px}
  .hero h1{font-size:21px}.lm-titles h3{font-size:19px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:13px}
}