/* ===================================================================
   STUDIO — landing publica (/studio, visitante deslogado)
   DAGOBERTO STYLE — "editorial premium": tinta escura + a IA (violeta)
   transformando MATERIAL PARADO (ambar) em CURSO (teal).
   Tudo escopado em .stu- (nao depende de Tailwind: nao precisa rebuild).
   O dashboard do instrutor logado usa os prefixos .stl- e .studio- e vive
   noutro arquivo — cuidado ao citar prefixo com asterisco dentro de comentario
   CSS: a sequencia asterisco+barra fecha o comentario e engole o :root abaixo.
   =================================================================== */

/* ================================================================= */
/* VARIAVEIS — cada acento tem um papel                              */
/* ================================================================= */
:root {
    --stu-ink: #0b0f1c;          /* tinta — fundo escuro do hero */
    --stu-ink-2: #141a30;
    --stu-violet: #8b5cf6;       /* a IA que organiza o material */
    --stu-violet-soft: #c4b5fd;
    --stu-teal: #14b8a6;         /* a marca / o curso pronto */
    --stu-teal-deep: #0d9488;
    --stu-mint: #5eead4;
    --stu-amber: #f59e0b;        /* o MATERIAL parado (PDF, apostila, slide) */
    --stu-amber-soft: #fcd34d;
    --stu-paper: #fdf7ea;
    --stu-sky: #38bdf8;          /* o ALCANCE: catalogo, alunos, busca */
    --stu-money: #34d399;        /* a RECEITA: preco, PIX, saque */
    --stu-rose: #fb7185;         /* o CUIDADO: revisao, qualidade, direitos */
    --stu-grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.4'/%3E%3C/svg%3E");
}

/* ================================================================= */
/* BASE                                                              */
/* ================================================================= */
.stu-wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.25rem;
}
.stu-sec { padding: 5rem 0; }
.stu-sec--bg { background: var(--bg); }
.stu-sec--surface { background: var(--surface); }

.stu-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: .8125rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--stu-teal-deep);
    margin-bottom: 1rem;
}
[data-theme="dark"] .stu-eyebrow { color: var(--stu-mint); }
.stu-eyebrow::before {
    content: "";
    width: 1.75rem;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    opacity: .5;
}

.stu-h2 {
    font-size: clamp(1.75rem, 1.1rem + 2.6vw, 2.75rem);
    line-height: 1.12;
    letter-spacing: -.025em;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 1rem;
    text-wrap: balance;
}
.stu-h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 .4rem;
    line-height: 1.3;
}
.stu-lead {
    font-size: clamp(1rem, .95rem + .35vw, 1.1875rem);
    line-height: 1.65;
    color: var(--muted);
    max-width: 42rem;
    margin: 0 0 3rem;
    text-wrap: pretty;
}
.stu-center { text-align: center; }
.stu-center .stu-lead { margin-left: auto; margin-right: auto; }
.stu-num { font-variant-numeric: tabular-nums; }

/* ================================================================= */
/* REVELACAO NO SCROLL (so aplica quando o JS esta vivo)             */
/* ================================================================= */
.stu-js .stu-rv {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity .7s cubic-bezier(.16, 1, .3, 1), transform .7s cubic-bezier(.16, 1, .3, 1);
    transition-delay: var(--rv-delay, 0s);
}
.stu-js .stu-rv.is-in { opacity: 1; transform: none; }

/* ================================================================= */
/* BOTOES                                                            */
/* ================================================================= */
.stu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .625rem;
    min-height: 3rem;
    padding: 1rem 1.75rem;
    border-radius: 999px;
    font-size: 1.0625rem;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .2s cubic-bezier(.16, 1, .3, 1), box-shadow .2s ease, background .2s ease, color .2s ease;
    will-change: transform;
}
.stu-btn svg { width: 1.25rem; height: 1.25rem; flex-shrink: 0; }
.stu-btn--primary {
    background: linear-gradient(135deg, var(--stu-violet-soft), var(--stu-violet) 55%, #6d28d9);
    color: #fff;
    box-shadow: 0 10px 30px -8px rgba(139, 92, 246, .7), inset 0 1px 0 rgba(255, 255, 255, .35);
}
.stu-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -10px rgba(139, 92, 246, .8), inset 0 1px 0 rgba(255, 255, 255, .35); }
.stu-btn--ghost {
    background: rgba(255, 255, 255, .06);
    border-color: rgba(255, 255, 255, .22);
    color: #fff;
    backdrop-filter: blur(8px);
}
.stu-btn--ghost:hover { background: rgba(255, 255, 255, .13); transform: translateY(-2px); }
.stu-btn--solid {
    background: var(--primary);
    color: var(--primary-contrast);
    box-shadow: 0 12px 28px -10px rgba(13, 148, 136, .7);
}
.stu-btn--solid:hover { transform: translateY(-2px); }

/* ================================================================= */
/* HERO                                                              */
/* ================================================================= */
.stu-hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    background:
        radial-gradient(56rem 38rem at 80% 4%, rgba(139, 92, 246, .30), transparent 60%),
        radial-gradient(44rem 30rem at 4% 92%, rgba(20, 184, 166, .26), transparent 62%),
        radial-gradient(34rem 24rem at 44% -12%, rgba(245, 158, 11, .16), transparent 60%),
        linear-gradient(158deg, var(--stu-ink-2), var(--stu-ink) 58%, #060812);
    color: #fff;
    padding: 4.5rem 0 5rem;
}
.stu-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: var(--stu-grain);
    opacity: .26;
    mix-blend-mode: overlay;
    pointer-events: none;
    z-index: -1;
}
.stu-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    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: 64px 64px;
    mask-image: radial-gradient(46rem 30rem at 26% 40%, #000, transparent 75%);
    -webkit-mask-image: radial-gradient(46rem 30rem at 26% 40%, #000, transparent 75%);
    pointer-events: none;
    z-index: -1;
}
.stu-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 3rem;
    align-items: center;
}
.stu-badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem 1rem;
    border-radius: 999px;
    font-size: .875rem;
    font-weight: 600;
    color: #ede9fe;
    background: rgba(139, 92, 246, .16);
    border: 1px solid rgba(196, 181, 253, .32);
    backdrop-filter: blur(6px);
}
.stu-badge svg { width: 1.05rem; height: 1.05rem; }

.stu-hero h1 {
    /* a coluna do hero tem ~490px (o menu lateral come 382px da viewport) */
    font-size: clamp(2.25rem, 1.55rem + 2.1vw, 3.375rem);
    line-height: 1.05;
    letter-spacing: -.035em;
    font-weight: 700;
    margin: 1.5rem 0 1.25rem;
    text-wrap: balance;
}
.stu-grad {
    background: linear-gradient(100deg, var(--stu-mint), var(--stu-sky) 50%, var(--stu-violet-soft));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.stu-grad--paper {
    background: linear-gradient(100deg, var(--stu-paper), var(--stu-amber-soft));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.stu-hero__sub {
    font-size: clamp(1.0625rem, 1rem + .45vw, 1.3125rem);
    line-height: 1.6;
    color: rgba(255, 255, 255, .78);
    max-width: 34rem;
    margin: 0 0 2rem;
    text-wrap: pretty;
}
.stu-hero__sub strong { color: #fff; font-weight: 700; }
.stu-hero__acoes { display: flex; flex-wrap: wrap; gap: .875rem; align-items: center; }
.stu-hero__nota { margin-top: 1.25rem; font-size: .875rem; color: rgba(255, 255, 255, .55); }
.stu-hero__nota a { color: var(--stu-mint); text-decoration: underline; text-underline-offset: 3px; }

.stu-pills { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 2rem; }
.stu-pill {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .4rem .8rem;
    border-radius: 999px;
    font-size: .8125rem;
    font-weight: 600;
    color: rgba(255, 255, 255, .85);
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .12);
}
.stu-pill i {
    width: .5rem;
    height: .5rem;
    border-radius: 999px;
    background: var(--stu-violet-soft);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, .2);
}
.stu-pill--amber i { background: var(--stu-amber-soft); box-shadow: 0 0 0 3px rgba(252, 211, 77, .18); }
.stu-pill--sky i { background: var(--stu-sky); box-shadow: 0 0 0 3px rgba(56, 189, 248, .2); }
.stu-pill--money i { background: var(--stu-money); box-shadow: 0 0 0 3px rgba(52, 211, 153, .2); }

/* ================================================================= */
/* O PALCO — o material vira aula dentro do editor (CSS puro)        */
/* ================================================================= */
.stu-stage {
    position: relative;
    height: 27rem;
    width: 100%;
}

/* --- a pilha de material parado --- */
.stu-material {
    position: absolute;
    left: 0;
    top: 3.25rem;
    width: 9.5rem;
    z-index: 1;
}
.stu-doc {
    position: relative;
    height: 11.5rem;
    border-radius: .5rem;
    background: linear-gradient(160deg, var(--stu-paper), #efe2c6);
    box-shadow: 0 24px 46px -18px rgba(0, 0, 0, .8);
    padding: .875rem .75rem;
    transform: rotate(-6deg);
}
.stu-doc::after { /* orelha da folha */
    content: "";
    position: absolute;
    right: 0; top: 0;
    border-width: 0 1.1rem 1.1rem 0;
    border-style: solid;
    border-color: transparent rgba(0, 0, 0, .18) transparent transparent;
    border-radius: 0 .5rem 0 0;
}
.stu-doc__tag {
    display: inline-block;
    font-size: .5625rem;
    font-weight: 800;
    letter-spacing: .1em;
    color: #7c4a03;
    background: rgba(245, 158, 11, .28);
    border-radius: .25rem;
    padding: .1rem .35rem;
    margin-bottom: .5rem;
}
.stu-doc__linhas { display: flex; flex-direction: column; gap: .28rem; }
.stu-doc__linhas span {
    height: 3px;
    border-radius: 2px;
    background: rgba(124, 74, 3, .28);
}
.stu-doc__linhas span:nth-child(3) { width: 70%; }
.stu-doc__linhas span:nth-child(6) { width: 45%; }
/* as folhas de tras da pilha */
.stu-doc--atras {
    position: absolute;
    inset: 0;
    z-index: -1;
    transform: rotate(2deg) translate(.55rem, .5rem);
    opacity: .55;
}
.stu-doc--atras2 {
    position: absolute;
    inset: 0;
    z-index: -2;
    transform: rotate(8deg) translate(1rem, 1rem);
    opacity: .3;
}

/* --- o feixe da IA no meio --- */
.stu-ia {
    position: absolute;
    left: .75rem;
    top: 16.25rem;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .5rem .75rem;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 700;
    color: #ede9fe;
    background: rgba(139, 92, 246, .28);
    border: 1px solid rgba(196, 181, 253, .45);
    backdrop-filter: blur(8px);
    box-shadow: 0 0 28px -4px rgba(139, 92, 246, .7);
    animation: stuPulso 3.2s ease-in-out infinite;
}
.stu-ia svg { width: .95rem; height: .95rem; }

/* --- a janela do editor com as aulas montadas --- */
.stu-editor {
    position: absolute;
    right: 0;
    top: 0;
    width: min(100%, 21rem);
    border-radius: 1rem;
    overflow: hidden;
    background: linear-gradient(160deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .04));
    border: 1px solid rgba(255, 255, 255, .16);
    box-shadow: 0 34px 64px -24px rgba(0, 0, 0, .8);
    backdrop-filter: blur(10px);
    z-index: 2;
}
.stu-editor__barra {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .6rem .75rem;
    background: rgba(0, 0, 0, .28);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.stu-editor__barra i {
    width: .5rem;
    height: .5rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, .25);
}
.stu-editor__barra span {
    margin-left: .35rem;
    font-size: .6875rem;
    color: rgba(255, 255, 255, .55);
}
.stu-editor__corpo { padding: .875rem; display: flex; flex-direction: column; gap: .5rem; }
.stu-bloco {
    display: flex;
    align-items: center;
    gap: .625rem;
    padding: .5rem .625rem;
    border-radius: .625rem;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .1);
    animation: stuEntra .7s cubic-bezier(.16, 1, .3, 1) both;
    animation-delay: var(--d, 0s);
}
.stu-bloco__ic {
    width: 1.6rem;
    height: 1.6rem;
    border-radius: .45rem;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    color: var(--c, var(--stu-mint));
    background: color-mix(in srgb, var(--c, var(--stu-mint)) 20%, transparent);
    border: 1px solid color-mix(in srgb, var(--c, var(--stu-mint)) 35%, transparent);
}
.stu-bloco__ic svg { width: .85rem; height: .85rem; }
.stu-bloco b {
    font-size: .8125rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.2;
}
.stu-bloco span { display: block; font-size: .6875rem; color: rgba(255, 255, 255, .45); }
.stu-editor__pe {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .625rem .875rem;
    border-top: 1px solid rgba(255, 255, 255, .1);
    background: rgba(0, 0, 0, .18);
    font-size: .6875rem;
    color: rgba(255, 255, 255, .5);
}
.stu-editor__pe b { color: var(--stu-mint); font-size: .8125rem; }

/* --- o card de receita --- */
.stu-receita {
    position: absolute;
    right: 1.25rem;
    bottom: .5rem;
    z-index: 4;
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .8rem 1rem;
    border-radius: 1rem;
    background: linear-gradient(150deg, rgba(52, 211, 153, .22), rgba(5, 150, 105, .12));
    border: 1px solid rgba(52, 211, 153, .38);
    backdrop-filter: blur(10px);
    animation: stuFlutua 7.5s ease-in-out infinite;
}
.stu-receita__ic {
    width: 2rem;
    height: 2rem;
    border-radius: .6rem;
    display: grid;
    place-items: center;
    background: rgba(52, 211, 153, .2);
    border: 1px solid rgba(52, 211, 153, .35);
    flex-shrink: 0;
}
.stu-receita__ic svg { width: 1rem; height: 1rem; color: var(--stu-money); }
.stu-receita b { font-size: 1rem; color: #fff; line-height: 1.1; }
.stu-receita span { display: block; font-size: .6875rem; color: rgba(255, 255, 255, .58); }


/* ================================================================= */
/* DE ONDE VOCE PARTE (3 pontos de partida)                          */
/* ================================================================= */
.stu-partidas {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}
.stu-partida {
    display: block;
    padding: 1.75rem 1.5rem;
    border-radius: 1.25rem;
    background: var(--bg);
    border: 1px solid var(--border);
    text-decoration: none;
    transition: transform .2s cubic-bezier(.16, 1, .3, 1), box-shadow .2s ease, border-color .2s ease;
}
.stu-sec--bg .stu-partida { background: var(--surface); }
.stu-partida:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: color-mix(in srgb, var(--c) 40%, var(--border));
}
.stu-partida__ic {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: .875rem;
    display: grid;
    place-items: center;
    color: var(--c);
    background: color-mix(in srgb, var(--c) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--c) 28%, transparent);
    margin-bottom: 1.125rem;
}
.stu-partida__ic svg { width: 1.35rem; height: 1.35rem; }
.stu-partida p { margin: 0; font-size: .9375rem; line-height: 1.6; color: var(--muted); }
.stu-partida__link {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    margin-top: .875rem;
    font-size: .875rem;
    font-weight: 700;
    color: var(--c);
}
.stu-partida__link svg { width: .95rem; height: .95rem; }

/* ================================================================= */
/* PASSOS                                                            */
/* ================================================================= */
.stu-passos {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.75rem;
    position: relative;
}
.stu-passos::before {
    content: "";
    position: absolute;
    left: 10%;
    right: 10%;
    top: 1.6rem;
    height: 2px;
    background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 16px);
}
.stu-passo { position: relative; }
.stu-passo__n {
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 999px;
    display: grid;
    place-items: center;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--c);
    background: var(--bg);
    border: 2px solid color-mix(in srgb, var(--c) 45%, transparent);
    box-shadow: 0 0 0 6px var(--bg);
    margin-bottom: 1.125rem;
    position: relative;
    z-index: 1;
}
.stu-sec--surface .stu-passo__n { background: var(--surface); box-shadow: 0 0 0 6px var(--surface); }
.stu-passo p { color: var(--muted); font-size: .9375rem; line-height: 1.6; margin: 0; }
.stu-passo p strong { color: var(--text); }

/* ================================================================= */
/* A AULA — a paleta do construtor + a aula como o aluno ve          */
/* ================================================================= */
.stu-aula {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: clamp(2rem, 2rem + 2.5vw, 4.25rem);
    align-items: center;
    max-width: 64rem;
    margin: 0 auto 3rem;
}
.stu-aula::before { /* o brilho do palco (inset lateral 0: negativo estoura o mobile) */
    content: "";
    position: absolute;
    inset: -3rem 0;
    z-index: -1;
    background:
        radial-gradient(26rem 17rem at 20% 32%, color-mix(in srgb, var(--stu-violet) 10%, transparent), transparent 66%),
        radial-gradient(24rem 16rem at 82% 72%, color-mix(in srgb, var(--stu-teal) 10%, transparent), transparent 66%);
    pointer-events: none;
}

/* --- a paleta (conteudo real: os 12 tipos de bloco) --- */
.stu-paleta {
    border-radius: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 1.25rem;
}
.stu-paleta__cab {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: .75rem;
    margin-bottom: 1rem;
}
.stu-paleta__cab b { font-size: .9375rem; font-weight: 700; color: var(--text); }
.stu-paleta__cab span { font-size: .75rem; font-weight: 600; color: var(--muted); white-space: nowrap; }
.stu-paleta__grade {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .5rem;
}
.stu-peca {
    display: flex;
    align-items: center;
    gap: .45rem;
    padding: .5rem .625rem;
    border-radius: .75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    font-size: .8125rem;
    font-weight: 600;
    line-height: 1.15;
    color: var(--text);
    cursor: grab;
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.stu-peca:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--c, var(--primary)) 45%, var(--border));
    box-shadow: var(--shadow-sm);
}
.stu-peca svg { width: .95rem; height: .95rem; flex-shrink: 0; color: var(--c, var(--primary)); }
.stu-peca__grip { /* a pega de arrastar (6 pontinhos) */
    flex-shrink: 0;
    width: 6px;
    height: 13px;
    background-image: radial-gradient(circle, var(--muted) 1px, transparent 1.3px);
    background-size: 3px 4.4px;
    opacity: .55;
}
/* a peca que "saiu" da paleta (esta voando ali ao lado) */
.stu-peca--fantasma {
    border-style: dashed;
    border-color: color-mix(in srgb, var(--c) 45%, var(--border));
    background: color-mix(in srgb, var(--c) 6%, transparent);
    opacity: .5;
}

/* --- o bloco em pleno arrasto --- */
.stu-arrasto {
    position: absolute;
    left: 37%;
    top: 30%;
    z-index: 5;
    animation: stuArrasta 5.5s ease-in-out infinite;
    filter: drop-shadow(0 16px 22px rgba(0, 0, 0, .3));
}
.stu-peca--voando {
    background: var(--surface);
    border-color: color-mix(in srgb, var(--stu-violet) 55%, var(--border));
    font-size: .875rem;
    padding: .625rem .8rem;
    transform: rotate(-5deg);
    cursor: grabbing;
    white-space: nowrap;
}
.stu-arrasto__mao {
    position: absolute;
    right: -.9rem;
    bottom: -1.1rem;
    width: 1.4rem;
    height: 1.4rem;
    color: var(--text);
    fill: var(--surface);
}

/* --- o player: a aula montada como o aluno ve --- */
.stu-player {
    border-radius: 1.25rem;
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}
.stu-player__barra {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .7rem .9rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}
.stu-player__barra i {
    width: .5rem;
    height: .5rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--text) 18%, transparent);
}
.stu-player__barra span {
    margin-left: .35rem;
    font-size: .75rem;
    font-weight: 600;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.stu-player__barra b { margin-left: auto; font-size: .75rem; font-weight: 700; color: var(--text); white-space: nowrap; }
.stu-player__barra b em { font-style: normal; font-weight: 600; color: var(--muted); }

.stu-player__corpo { padding: .9rem; display: flex; flex-direction: column; gap: .6rem; }
.stu-pbloco {
    display: flex;
    align-items: flex-start;
    gap: .7rem;
    padding: .7rem .75rem;
    border-radius: .8rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-left: 3px solid color-mix(in srgb, var(--c) 65%, transparent);
}
.stu-pbloco__ic {
    width: 1.7rem;
    height: 1.7rem;
    border-radius: .5rem;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    color: var(--c);
    background: color-mix(in srgb, var(--c) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--c) 28%, transparent);
}
.stu-pbloco__ic svg { width: .9rem; height: .9rem; }
.stu-pbloco__meio { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .4rem; }
.stu-pbloco__grip {
    flex-shrink: 0;
    align-self: center;
    width: 6px;
    height: 13px;
    background-image: radial-gradient(circle, var(--muted) 1px, transparent 1.3px);
    background-size: 3px 4.4px;
    opacity: .45;
}
.stu-linha {
    display: block;
    height: 6px;
    border-radius: 3px;
    background: color-mix(in srgb, var(--text) 14%, transparent);
}
.stu-linha--titulo {
    height: 9px;
    width: 56%;
    background: color-mix(in srgb, var(--text) 32%, transparent);
}
.stu-pbloco__img {
    height: 3.2rem;
    border-radius: .5rem;
    background:
        radial-gradient(6rem 3rem at 80% 0%, rgba(255, 255, 255, .35), transparent 60%),
        linear-gradient(135deg, var(--stu-amber-soft), var(--stu-rose));
    display: grid;
    place-items: center;
    color: rgba(255, 255, 255, .95);
}
.stu-pbloco__img svg { width: 1.2rem; height: 1.2rem; }

/* o quiz respondido */
.stu-quiz__perg { font-size: .8125rem; font-weight: 700; color: var(--text); line-height: 1.3; }
.stu-opcao {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .45rem .6rem;
    border-radius: .55rem;
    background: var(--surface);
    border: 1px solid var(--border);
    font-size: .75rem;
    font-weight: 500;
    color: var(--muted);
    line-height: 1.2;
}
.stu-opcao--certa {
    background: color-mix(in srgb, var(--stu-money) 12%, transparent);
    border-color: color-mix(in srgb, var(--stu-money) 50%, var(--border));
    color: var(--text);
    font-weight: 700;
}
.stu-opcao__check {
    margin-left: auto;
    width: 1.05rem;
    height: 1.05rem;
    border-radius: 999px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    background: var(--stu-money);
    color: #063a2b;
}
.stu-opcao__check svg { width: .65rem; height: .65rem; }
.stu-quiz__selo {
    align-self: flex-end;
    font-size: .6875rem;
    font-weight: 800;
    letter-spacing: .02em;
    color: color-mix(in srgb, var(--stu-money) 55%, var(--text));
}

/* o slot de soltura */
.stu-solta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .8rem .75rem;
    border-radius: .8rem;
    border: 2px dashed color-mix(in srgb, var(--stu-violet) 55%, var(--border));
    background: color-mix(in srgb, var(--stu-violet) 7%, transparent);
    font-size: .8125rem;
    font-weight: 700;
    color: color-mix(in srgb, var(--stu-violet) 62%, var(--text));
    animation: stuSolta 2.6s ease-in-out infinite;
}
.stu-solta svg { width: 1rem; height: 1rem; flex-shrink: 0; }

/* o pe do player: progresso + continuar */
.stu-player__pe {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .75rem .9rem;
    background: var(--bg);
    border-top: 1px solid var(--border);
}
.stu-prog {
    flex: 1;
    height: 6px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--text) 10%, transparent);
    overflow: hidden;
}
.stu-prog i {
    display: block;
    height: 100%;
    width: 68%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--stu-teal), var(--stu-mint));
}
.stu-prog__txt { font-size: .6875rem; font-weight: 600; color: var(--muted); white-space: nowrap; }
.stu-player__pe b {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .45rem .8rem;
    border-radius: 999px;
    background: var(--primary);
    color: var(--primary-contrast);
    font-size: .75rem;
    font-weight: 700;
    white-space: nowrap;
}
.stu-player__pe b svg { width: .8rem; height: .8rem; }

/* a aula "acontece" quando entra na tela (so com JS vivo; sem JS fica pronta) */
.stu-js .stu-player .stu-prog i { width: 0; transition: width 1.1s cubic-bezier(.16, 1, .3, 1) .55s; }
.stu-js .stu-player.is-in .stu-prog i { width: 68%; }
.stu-js .stu-player .stu-opcao__check { transform: scale(0); transition: transform .45s cubic-bezier(.34, 1.56, .64, 1) .85s; }
.stu-js .stu-player.is-in .stu-opcao__check { transform: scale(1); }
.stu-js .stu-player .stu-quiz__selo { opacity: 0; transition: opacity .4s ease 1.15s; }
.stu-js .stu-player.is-in .stu-quiz__selo { opacity: 1; }

/* ================================================================= */
/* A VENDA — pagina de vendas, site do criador e divulgacao          */
/* ================================================================= */
.stu-vendas { display: flex; flex-direction: column; gap: 4.5rem; }
.stu-venda {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 3rem;
    align-items: center;
}
.stu-venda--inv .stu-venda__txt { order: 2; }
.stu-venda--inv .stu-venda__palco { order: 1; }

.stu-venda__chip {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem .85rem;
    border-radius: 999px;
    font-size: .8125rem;
    font-weight: 700;
    color: var(--c);
    background: color-mix(in srgb, var(--c) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--c) 26%, transparent);
    margin-bottom: 1rem;
}
.stu-venda__chip svg { width: 1rem; height: 1rem; }

.stu-venda__h3 {
    font-size: clamp(1.375rem, 1.05rem + 1.2vw, 1.875rem);
    line-height: 1.18;
    letter-spacing: -.02em;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 .875rem;
    text-wrap: balance;
}
.stu-venda__txt > p {
    font-size: 1rem;
    line-height: 1.65;
    color: var(--muted);
    margin: 0 0 1.25rem;
    text-wrap: pretty;
}
.stu-venda__txt strong { color: var(--text); }
.stu-venda__txt em { font-style: normal; font-weight: 700; color: var(--stu-teal-deep); }
[data-theme="dark"] .stu-venda__txt em { color: var(--stu-mint); }

.stu-venda__itens { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .55rem; }
.stu-venda__itens li {
    display: flex;
    align-items: flex-start;
    gap: .55rem;
    font-size: .9375rem;
    line-height: 1.5;
    color: var(--muted);
}
.stu-venda__itens svg { width: 1.05rem; height: 1.05rem; flex-shrink: 0; margin-top: .16rem; color: var(--c); }

/* --- o mockup de navegador (ilustracao: pagina real, clara nos 2 temas) --- */
.stu-venda__palco { position: relative; }
.stu-mock {
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid var(--border);
    background: #fff;
    box-shadow: var(--shadow-lg);
}
.stu-mock__bar { display: flex; align-items: center; gap: .4rem; padding: .6rem .75rem; background: #e9edf4; }
.stu-mock__bar > i { width: .5rem; height: .5rem; border-radius: 999px; background: #c3cbd9; }
.stu-mock__url {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: .4rem;
    margin-left: .35rem;
    padding: .3rem .65rem;
    border-radius: 999px;
    background: #fff;
    font-size: .75rem;
    font-weight: 600;
    color: #64748b;
    white-space: nowrap;
    overflow: hidden;
}
.stu-mock__url b { color: #0f172a; font-weight: 800; }
.stu-mock__url svg { width: .8rem; height: .8rem; color: #10b981; flex-shrink: 0; }

/* barras de "texto" do mockup */
.stu-mock__t { display: block; height: 7px; border-radius: 4px; background: #dbe2ec; width: 100%; }
.stu-mock__t--titulo { height: 11px; width: 86%; background: #94a3b8; }
.stu-mock__t--claro { background: rgba(255, 255, 255, .85); height: 10px; }
.stu-mock__t--fina { height: 6px; background: rgba(255, 255, 255, .5); }

/* variante: pagina de vendas do curso */
.stu-mock--curso { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 1rem; padding: 1.1rem; }
.stu-mock__info { display: flex; flex-direction: column; gap: .5rem; }
.stu-mock__capa {
    height: 5.25rem;
    border-radius: .625rem;
    background: linear-gradient(135deg, #0d9488, #38bdf8 85%);
    display: grid;
    place-items: center;
    color: rgba(255, 255, 255, .92);
    margin-bottom: .25rem;
}
.stu-mock__capa svg { width: 2rem; height: 2rem; }
.stu-mock__estrelas { color: #f59e0b; font-size: .8rem; letter-spacing: .12em; line-height: 1; }
.stu-mock__buy {
    align-self: start;
    display: flex;
    flex-direction: column;
    gap: .55rem;
    padding: .9rem;
    border-radius: .75rem;
    border: 1px solid #e2e8f0;
    background: #f8fafc;
}
.stu-mock__preco { display: block; height: 14px; width: 58%; border-radius: 4px; background: #0f172a; }
.stu-mock__botao {
    display: grid;
    place-items: center;
    padding: .55rem .5rem;
    border-radius: .55rem;
    background: linear-gradient(135deg, #34d399, #059669);
    color: #fff;
    font-size: .78rem;
    font-weight: 800;
}
.stu-mock__pag { font-size: .6875rem; color: #94a3b8; text-align: center; }

/* variante: o site do criador */
.stu-mock--site { padding: 0 0 1rem; }
.stu-mock__herosite {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: .5rem;
    padding: 1.25rem 1.1rem 1.35rem;
    margin-bottom: 1rem;
    background:
        radial-gradient(16rem 9rem at 85% 0%, rgba(94, 234, 212, .5), transparent 60%),
        linear-gradient(135deg, #0f766e, #0d9488 55%, #115e59);
}
.stu-mock__minibtn { margin-top: .35rem; width: 5.5rem; height: 1.35rem; border-radius: 999px; background: #fff; }
.stu-mock__grade { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .65rem; padding: 0 1.1rem; }
.stu-mock__mini {
    display: flex;
    flex-direction: column;
    gap: .35rem;
    padding: .5rem;
    border-radius: .6rem;
    border: 1px solid #e2e8f0;
    background: #fff;
}
.stu-mock__mini i { display: block; height: 2.6rem; border-radius: .45rem; background: linear-gradient(135deg, color-mix(in srgb, var(--mc) 55%, #fff), var(--mc)); }
.stu-mock__mini span { display: block; height: 6px; border-radius: 3px; background: #dbe2ec; }

/* o selo flutuante do mockup */
.stu-mock__selo {
    position: absolute;
    top: -.9rem;
    right: 1rem;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .5rem .8rem;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 700;
    color: var(--text);
    background: var(--bg);
    border: 1px solid color-mix(in srgb, var(--c) 40%, var(--border));
    box-shadow: var(--shadow-md);
    animation: stuFlutua 7.5s ease-in-out infinite;
}
.stu-mock__selo svg { width: .95rem; height: .95rem; color: var(--c); }

/* --- os canais de divulgacao --- */
.stu-canais { display: flex; flex-direction: column; gap: .875rem; }
.stu-canal {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    padding: 1.05rem 1.25rem;
    border-radius: 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    transition: transform .2s cubic-bezier(.16, 1, .3, 1), box-shadow .2s ease;
}
.stu-canal:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stu-canal__num {
    flex-shrink: 0;
    min-width: 5.4rem;
    text-align: center;
    font-size: 1.625rem;
    font-weight: 800;
    letter-spacing: -.02em;
    line-height: 1;
    color: var(--c);
    font-variant-numeric: tabular-nums;
}
.stu-canal__num em {
    display: block;
    font-style: normal;
    font-size: .6875rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    opacity: .75;
    margin-top: .2rem;
}
.stu-canal__ic { flex-shrink: 0; min-width: 5.4rem; display: grid; place-items: center; }
.stu-canal__ic svg {
    width: 2.6rem;
    height: 2.6rem;
    padding: .6rem;
    box-sizing: border-box;
    border-radius: .8rem;
    color: var(--c);
    background: color-mix(in srgb, var(--c) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--c) 28%, transparent);
}
.stu-canal__txt { font-size: .9375rem; line-height: 1.55; color: var(--muted); }
.stu-canal__txt b { display: block; color: var(--text); font-size: 1rem; margin-bottom: .15rem; }

/* ================================================================= */
/* CARDS (o que ja vem pronto)                                       */
/* ================================================================= */
.stu-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}
.stu-card {
    padding: 1.75rem 1.5rem;
    border-radius: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    transition: transform .2s cubic-bezier(.16, 1, .3, 1), box-shadow .2s ease;
}
.stu-sec--surface .stu-card { background: var(--bg); }
.stu-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stu-card__ic {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: .875rem;
    display: grid;
    place-items: center;
    color: var(--c);
    background: color-mix(in srgb, var(--c) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--c) 28%, transparent);
    margin-bottom: 1.125rem;
}
.stu-card__ic svg { width: 1.35rem; height: 1.35rem; }
.stu-card p { margin: 0; font-size: .9375rem; line-height: 1.6; color: var(--muted); }

/* ================================================================= */
/* REGRAS / TRANSPARENCIA                                            */
/* ================================================================= */
.stu-regras {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    max-width: 60rem;
    margin: 0 auto;
}
.stu-lista {
    padding: 1.75rem;
    border-radius: 1.25rem;
    background: var(--bg);
    border: 1px solid var(--border);
}
.stu-sec--bg .stu-lista { background: var(--surface); }
.stu-lista h3 {
    display: flex;
    align-items: center;
    gap: .625rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 1rem;
}
.stu-lista h3 svg { width: 1.25rem; height: 1.25rem; color: var(--c); }
.stu-lista ul { list-style: none; margin: 0; padding: 0; }
.stu-lista li {
    display: flex;
    gap: .625rem;
    font-size: .9375rem;
    line-height: 1.55;
    color: var(--muted);
    padding: .5rem 0;
    border-bottom: 1px solid var(--border);
}
.stu-lista li:last-child { border-bottom: 0; }
.stu-lista li::before {
    content: "";
    flex-shrink: 0;
    width: 1.15rem;
    height: 1.15rem;
    margin-top: .15rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--c) 16%, transparent);
    border: 1px solid color-mix(in srgb, var(--c) 32%, transparent);
}

/* ================================================================= */
/* CTA FINAL                                                         */
/* ================================================================= */
.stu-cta {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 5rem 0;
    text-align: center;
    color: #fff;
    background:
        radial-gradient(44rem 28rem at 50% 0%, rgba(139, 92, 246, .3), transparent 62%),
        radial-gradient(36rem 24rem at 12% 100%, rgba(20, 184, 166, .24), transparent 64%),
        linear-gradient(160deg, var(--stu-ink-2), var(--stu-ink) 60%, #060812);
}
.stu-cta::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: var(--stu-grain);
    opacity: .24;
    mix-blend-mode: overlay;
    pointer-events: none;
    z-index: -1;
}
.stu-cta h2 {
    font-size: clamp(1.875rem, 1.2rem + 2.6vw, 2.875rem);
    line-height: 1.1;
    letter-spacing: -.03em;
    font-weight: 700;
    margin: 0 0 1rem;
    text-wrap: balance;
}
.stu-cta p {
    font-size: 1.0625rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, .74);
    max-width: 36rem;
    margin: 0 auto 2rem;
    text-wrap: pretty;
}

/* ================================================================= */
/* FAQ                                                               */
/* ================================================================= */
.stu-faq { max-width: 46rem; margin: 0 auto; }
.stu-faq details {
    border: 1px solid var(--border);
    border-radius: 1rem;
    background: var(--bg);
    margin-bottom: .75rem;
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
}
.stu-sec--bg .stu-faq details { background: var(--surface); }
.stu-faq details[open] { border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); box-shadow: var(--shadow); }
.stu-faq summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.125rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
    list-style: none;
}
.stu-faq summary::-webkit-details-marker { display: none; }
.stu-faq summary:hover { color: var(--primary); }
.stu-faq__mais {
    position: relative;
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
    border-radius: 999px;
    background: color-mix(in srgb, var(--primary) 12%, transparent);
    transition: transform .25s ease;
}
.stu-faq__mais::before,
.stu-faq__mais::after {
    content: "";
    position: absolute;
    left: 50%; top: 50%;
    width: .625rem;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    transform: translate(-50%, -50%);
    transition: opacity .2s ease;
}
.stu-faq__mais::after { transform: translate(-50%, -50%) rotate(90deg); }
.stu-faq details[open] .stu-faq__mais { transform: rotate(90deg); }
.stu-faq details[open] .stu-faq__mais::after { opacity: 0; }
.stu-faq__resp {
    padding: 0 1.25rem 1.25rem;
    font-size: .9375rem;
    line-height: 1.7;
    color: var(--muted);
    animation: stuAbre .28s ease-out;
}
.stu-faq__resp a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }

/* ================================================================= */
/* CTA GRUDADO NO MOBILE                                             */
/* ================================================================= */
.stu-sticky {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 40;
    padding: .75rem 1rem calc(.75rem + env(safe-area-inset-bottom));
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    border-top: 1px solid var(--border);
    backdrop-filter: blur(12px);
    transform: translateY(110%);
    transition: transform .3s cubic-bezier(.16, 1, .3, 1);
    display: none;
}
.stu-sticky.is-in { transform: none; }
.stu-sticky .stu-btn { width: 100%; padding: .875rem 1.25rem; font-size: 1rem; }

/* ================================================================= */
/* ANIMACOES                                                         */
/* ================================================================= */
@keyframes stuFlutua {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-12px); }
}
@keyframes stuPulso {
    0%, 100% { box-shadow: 0 0 24px -6px rgba(139, 92, 246, .55); }
    50%      { box-shadow: 0 0 38px 0 rgba(139, 92, 246, .85); }
}
@keyframes stuEntra {
    from { opacity: 0; transform: translateX(14px); }
    to   { opacity: 1; transform: none; }
}
@keyframes stuAbre {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: none; }
}
@keyframes stuArrasta {
    0%, 100% { transform: translate(0, 0); }
    50%      { transform: translate(-9px, 9px); }
}
@keyframes stuSolta {
    0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--stu-violet) 24%, transparent); }
    70%      { box-shadow: 0 0 0 9px transparent; }
}

/* ================================================================= */
/* RESPONSIVO                                                        */
/* ================================================================= */
@media (max-width: 1100px) {
    .stu-hero__grid { grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }
    .stu-stage { max-width: 34rem; }
    .stu-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    /* a aula empilha: paleta em cima, player embaixo; o bloco voando sai de cena */
    .stu-aula { grid-template-columns: minmax(0, 1fr); max-width: 34rem; gap: 1.5rem; }
    .stu-arrasto { display: none; }
    .stu-passos { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem 1.5rem; }
    .stu-passos::before { display: none; }
    .stu-vendas { gap: 3.5rem; }
    .stu-venda { grid-template-columns: minmax(0, 1fr); gap: 2rem; align-items: start; }
    /* no empilhado o texto vem SEMPRE antes do visual (reset da inversao) */
    .stu-venda--inv .stu-venda__txt { order: 0; }
    .stu-venda--inv .stu-venda__palco { order: 0; }
    .stu-venda__palco { max-width: 30rem; }
}
@media (max-width: 900px) {
    .stu-partidas { grid-template-columns: minmax(0, 1fr); }
    .stu-regras { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
    .stu-sec { padding: 3.5rem 0; }
    .stu-hero { padding: 3rem 0 3.5rem; }
    .stu-cta { padding: 3.5rem 0; }
    .stu-cards, .stu-passos { grid-template-columns: minmax(0, 1fr); }
    .stu-btn { font-size: .9375rem; padding: .9375rem 1.25rem; }
    .stu-hero__acoes .stu-btn { width: 100%; }
    .stu-sticky { display: block; }
    /* o palco mantem a composicao do desktop e so encolhe junto (sem quebrar) */
    .stu-stage { width: 30rem; height: 27rem; transform: scale(.82); transform-origin: top left; margin-bottom: -4.9rem; }
    .stu-mock--curso { grid-template-columns: minmax(0, 1fr); }
    .stu-canal { align-items: flex-start; padding: .95rem 1rem; gap: .85rem; }
    .stu-canal__num { min-width: 4.3rem; font-size: 1.375rem; }
    .stu-canal__ic { min-width: 4.3rem; }
}
@media (max-width: 430px) {
    .stu-stage { transform: scale(.66); margin-bottom: -9.2rem; }
}

/* ================================================================= */
/* MOVIMENTO REDUZIDO — estado final legivel                         */
/* ================================================================= */
@media (prefers-reduced-motion: reduce) {
    .stu-receita, .stu-ia, .stu-mock__selo, .stu-arrasto, .stu-solta { animation: none; }
    .stu-bloco { animation: none; opacity: 1; transform: none; }
    .stu-js .stu-rv { opacity: 1; transform: none; transition: none; }
    .stu-faq__resp { animation: none; }
    /* a aula fica no estado final, legivel */
    .stu-js .stu-player .stu-prog i { width: 68%; transition: none; }
    .stu-js .stu-player .stu-opcao__check { transform: none; transition: none; }
    .stu-js .stu-player .stu-quiz__selo { opacity: 1; transition: none; }
    .stu-btn:hover,
    .stu-card:hover,
    .stu-partida:hover,
    .stu-canal:hover,
    .stu-peca:hover { transform: none; }
}