*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.5}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3{line-height:1.15;margin:0 0 .6em}
h1{font-size:clamp(1.5rem,3vw,2.2rem)}
h2{font-size:1.25rem}
p{margin:0 0 1em}
.muted{color:var(--muted)}
code{background:var(--surface);padding:.1em .35em;border-radius:4px;font-size:.9em}
.tag{font-style:normal;font-size:.72em;background:var(--accent);color:var(--bg);padding:.1em .5em;border-radius:99px;font-weight:700;vertical-align:middle}

/* Botões e formulários */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:.7em 1.3em;border-radius:8px;border:1px solid color-mix(in srgb,var(--text) 22%,transparent);background:transparent;color:var(--text);font:inherit;font-weight:600;cursor:pointer;text-decoration:none!important;white-space:nowrap}
.btn:hover{border-color:var(--accent)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--bg)}
.btn-primary:hover{filter:brightness(1.08)}
.btn-done{border-color:var(--accent);color:var(--accent)}
.btn-danger{border-color:#c0392b;color:#ff6b5b}
.btn-sm{padding:.4em .8em;font-size:.88rem}
.btn-block{width:100%}
.form{display:flex;flex-direction:column;gap:1rem}
.form label,.form fieldset{display:flex;flex-direction:column;gap:.35rem;font-size:.9rem;color:var(--muted);font-weight:600}
fieldset{border:1px solid color-mix(in srgb,var(--text) 14%,transparent);border-radius:10px;padding:1rem;margin:0}
legend{padding:0 .4em;color:var(--text)}
input,select,textarea{font:inherit;color:var(--text);background:color-mix(in srgb,var(--text) 6%,var(--bg));border:1px solid color-mix(in srgb,var(--text) 16%,transparent);border-radius:8px;padding:.65em .8em;width:100%;min-width:0}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
input:disabled{opacity:.6}
.flash{padding:.8em 1em;border-radius:8px;margin:0 0 1rem;background:color-mix(in srgb,var(--accent) 16%,transparent);border:1px solid color-mix(in srgb,var(--accent) 45%,transparent)}
.flash-erro{background:#c0392b26;border-color:#c0392b88}

/* Topo */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem clamp(16px,4vw,48px);background:linear-gradient(var(--bg),color-mix(in srgb,var(--bg) 85%,transparent));backdrop-filter:blur(8px)}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--text)}
.logo{height:var(--logo-h);width:auto;max-width:60vw;object-fit:contain;flex:none}
.only-mobile{display:none}
@media (max-width:640px){.nav>a{display:none}.menu-pop .only-mobile{display:block}}
.logo-text{font-weight:800;font-size:1.15rem}
.badge{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;background:var(--accent);color:var(--bg);padding:.15em .55em;border-radius:4px;font-weight:800}
.nav{display:flex;align-items:center;gap:1.2rem}
.nav>a{color:var(--text);font-weight:600;font-size:.95rem}
.menu{position:relative}
.menu summary{list-style:none;cursor:pointer}
.menu summary::-webkit-details-marker{display:none}
.avatar{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--accent);color:var(--bg);font-weight:800;font-size:.85rem}
.menu-pop{position:absolute;right:0;top:calc(100% + 8px);min-width:220px;background:var(--surface);border:1px solid color-mix(in srgb,var(--text) 12%,transparent);border-radius:10px;padding:.5rem;display:flex;flex-direction:column;box-shadow:0 10px 30px #0008}
.menu-pop a,.menu-pop button{padding:.55rem .7rem;border-radius:6px;color:var(--text);background:none;border:0;font:inherit;text-align:left;cursor:pointer;width:100%}
.menu-pop a:hover,.menu-pop button:hover{background:color-mix(in srgb,var(--text) 8%,transparent);text-decoration:none}
.menu-who{padding:.5rem .7rem .7rem;border-bottom:1px solid color-mix(in srgb,var(--text) 10%,transparent);margin-bottom:.3rem;display:flex;flex-direction:column}
.menu-who small{color:var(--muted);overflow:hidden;text-overflow:ellipsis}

/* Login */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1.3fr 1fr}
.auth-wrap.single{grid-template-columns:1fr;place-items:center}
.auth-art{background:var(--surface) center/cover no-repeat}
.auth-box{display:flex;flex-direction:column;justify-content:center;gap:1.4rem;padding:clamp(24px,6vw,72px);max-width:520px;width:100%;margin:0 auto}
.auth-logo{width:auto;max-width:100%;object-fit:contain;align-self:flex-start}
.auth-title{font-size:1.8rem}
.auth-help{font-size:.9rem;color:var(--muted)}
@media (max-width:800px){.auth-wrap{grid-template-columns:1fr}.auth-art{min-height:28vh}}

/* Banner (hero) */
.hero{position:relative;margin-top:-66px}
.hero-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.hero-track::-webkit-scrollbar{display:none}
.hero-slide{position:relative;flex:0 0 100%;scroll-snap-align:start;aspect-ratio:16/7;min-height:420px;max-height:80vh;overflow:hidden;display:flex;align-items:flex-end}
.hero-bg,.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-video{position:absolute;top:50%;left:50%;width:177.78vh;min-width:100%;height:56.25vw;min-height:100%;transform:translate(-50%,-50%);border:0;pointer-events:none}
.hero-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,color-mix(in srgb,var(--bg) 80%,transparent),transparent 60%),linear-gradient(0deg,var(--bg),transparent 40%)}
.hero-text{position:relative;z-index:1;padding:0 clamp(16px,4vw,48px) clamp(48px,8vw,96px);max-width:640px}
.hero-text h2{font-size:clamp(1.8rem,4vw,3.2rem);font-weight:800}
.hero-text p{font-size:1.05rem;color:color-mix(in srgb,var(--text) 85%,transparent)}
.hero-dots{position:absolute;bottom:20px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:2}
.hero-dots button{width:9px;height:9px;border-radius:50%;border:0;background:color-mix(in srgb,var(--text) 35%,transparent);cursor:pointer;padding:0}
.hero-dots button.on{background:var(--accent);width:24px;border-radius:5px}
@media (max-width:700px){.hero-slide{aspect-ratio:600/1050;max-height:78vh;min-height:0}}
.hello{padding:2rem clamp(16px,4vw,48px) 0}

/* Fileiras de cards */
.rows{padding:1rem 0 3rem}
.row{margin:0 0 2.2rem}
.row-title{padding:0 clamp(16px,4vw,48px);font-size:1.2rem}
.row-scroll{overflow-x:auto;scroll-snap-type:x proximity;scroll-padding-inline:clamp(16px,4vw,48px);scrollbar-width:none;padding:0 clamp(16px,4vw,48px)}
.row-scroll::-webkit-scrollbar{display:none}
.cards{display:flex;gap:12px;padding:4px 0 8px}
.card{position:relative;flex:0 0 auto;width:clamp(150px,18vw,230px);aspect-ratio:4/5;border-radius:10px;overflow:hidden;background:var(--surface);scroll-snap-align:start;transition:transform .2s;color:var(--text)}
.fmt-2x3 .card{aspect-ratio:2/3}
.fmt-4x7 .card{aspect-ratio:4/7;width:clamp(140px,15vw,200px)}
.fmt-16x9 .card{aspect-ratio:16/9;width:clamp(240px,26vw,340px)}
.fmt-1x1 .card{aspect-ratio:1}
.card:hover{transform:scale(1.03);text-decoration:none}
.card img{width:100%;height:100%;object-fit:cover}
.card-fallback{position:absolute;inset:0;display:flex;align-items:flex-end;padding:1rem;font-weight:800;font-size:1.05rem;background:linear-gradient(160deg,color-mix(in srgb,var(--accent) 30%,var(--surface)),var(--surface))}
.card-caption{position:absolute;left:-9999px}
.card-flag{position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#000a;color:var(--text)}
.card-flag.done{background:var(--accent);color:var(--bg)}
.card.is-locked img{filter:grayscale(.7) brightness(.55)}
.card-bar{position:absolute;left:0;right:0;bottom:0;height:5px;background:#0008}
.card-bar i{display:block;height:100%;background:var(--accent)}
.empty{padding:3rem clamp(16px,4vw,48px);color:var(--muted)}

/* Progresso */
.progress{display:flex;flex-direction:column;gap:.35rem;margin:0 0 1rem}
.progress span{display:block;height:6px;border-radius:3px;background:color-mix(in srgb,var(--text) 14%,transparent);overflow:hidden}
.progress i{display:block;height:100%;background:var(--accent)}
.progress small{color:var(--muted)}

/* Curso */
.course{padding:1rem clamp(16px,4vw,48px) 3rem;max-width:1100px;margin:0 auto}
.course-head{display:grid;grid-template-columns:minmax(0,420px) 1fr;gap:2rem;align-items:start;margin-bottom:2rem}
.course-cover{border-radius:12px;width:100%}
@media (max-width:760px){.course-head{grid-template-columns:1fr}}
.module{background:var(--surface);border-radius:10px;margin:0 0 .6rem;overflow:hidden}
.module summary{display:flex;justify-content:space-between;gap:1rem;padding:1rem 1.2rem;cursor:pointer;font-weight:700;list-style:none}
.module summary::-webkit-details-marker{display:none}
.module summary small{color:var(--muted);font-weight:500}
.lesson-list{list-style:none;margin:0;padding:0 0 .4rem}
.lesson-list a{display:flex;gap:.8rem;align-items:center;padding:.65rem 1.2rem;color:var(--text)}
.lesson-list a:hover{background:color-mix(in srgb,var(--text) 6%,transparent);text-decoration:none}
.lesson-list .li-icon{color:var(--muted);flex:none;display:grid}
.lesson-list .is-done .li-icon{color:var(--accent)}
.lesson-list .is-current a{background:color-mix(in srgb,var(--accent) 14%,transparent);box-shadow:inset 3px 0 var(--accent)}

/* Aula */
.lesson{display:grid;gap:2rem;padding:1rem clamp(16px,4vw,48px) 3rem;max-width:1400px;margin:0 auto}
.lesson.with-side{grid-template-columns:minmax(0,1fr) 340px}
@media (max-width:980px){.lesson.with-side{grid-template-columns:1fr}}
.crumb{display:inline-block;color:var(--muted);margin-bottom:.8rem}
.player{position:relative;aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden}
.player iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.player-empty{display:grid;place-items:center;color:var(--muted)}
.lesson-bar{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;margin:1.2rem 0}
.lesson-bar h1{margin:0;font-size:clamp(1.3rem,2.4vw,1.8rem)}
.lesson-nav{display:flex;justify-content:space-between;gap:1rem;margin-top:2rem}
.lesson-side{align-self:start;position:sticky;top:80px;max-height:calc(100vh - 100px);overflow:auto}
.locked-box{display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center;padding:4rem 1rem;background:var(--surface);border-radius:12px}
.prose{color:color-mix(in srgb,var(--text) 88%,transparent);max-width:75ch}

/* Páginas simples */
.narrow{max-width:760px;margin:0 auto;padding:1.5rem clamp(16px,4vw,32px) 3rem}
.card-box{background:var(--surface);padding:1.5rem;border-radius:12px}
.faq{background:var(--surface);border-radius:10px;margin:0 0 .6rem;padding:0 1.2rem}
.faq summary{padding:1rem 0;cursor:pointer;font-weight:700}
.foot{display:flex;gap:1.5rem;flex-wrap:wrap;justify-content:center;padding:2rem 16px;color:var(--muted);font-size:.85rem;border-top:1px solid color-mix(in srgb,var(--text) 8%,transparent)}
.foot a{color:var(--muted)}