/* ==========================================================================
   Mentorados Denderson · folha de estilo compartilhada
   Design system herdado de instalador-naia/public/styles.css
   (paper cream + coral). Tokens, sombras, curva e movimentos identicos.
   ========================================================================== */

*{margin:0;padding:0;box-sizing:border-box}
/* o atributo hidden vence qualquer display do autor (senao chip e link escondidos aparecem) */
[hidden]{display:none!important}

:root{
  /* paleta exata da marca */
  --paper:#efe7d2;
  --paper-warm:#ece4cf;
  --paper-dark:#ddd2b6;
  --bone:#f7f1de;
  --ink:#15140f;
  --ink-soft:#2a2620;
  --ink-mute:#5a5448;
  --ink-faint:#8b8676;
  --coral:#ed6f5c;
  --coral-soft:#f08e7c;
  --mustard:#e9b94a;
  --olive:#6e7448;
  --line:rgba(21,20,15,.14);
  --line-soft:rgba(21,20,15,.08);
  --font-display:"Inter Tight",-apple-system,system-ui,sans-serif;
  --font-serif:"Playfair Display",Georgia,serif;
  --font-body:"Inter",-apple-system,system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --shadow-card:0 30px 60px -34px rgba(21,20,15,.22);
  --shadow-coral:0 14px 30px -10px rgba(237,111,92,.7);
  --ease:cubic-bezier(.16,1,.3,1);
  --top-bar:0px;
}

html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-weight:400;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit}
img{max-width:100%}
::selection{background:rgba(237,111,92,.24)}

/* foco visivel acessivel */
:focus-visible{outline:2px solid var(--coral);outline-offset:2px;border-radius:6px}
/* alvo de foco programatico (acessibilidade), sem anel visual */
[tabindex="-1"]:focus,[tabindex="-1"]:focus-visible{outline:none}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---- wordmark tipografico (sem ilustracao) ---- */
.wordmark{
  font-family:var(--font-display);font-weight:800;
  font-size:18px;letter-spacing:-.02em;color:var(--ink);
  line-height:1;display:inline-flex;align-items:baseline;gap:.34em;
  text-decoration:none;
}
.wordmark em{
  font-family:var(--font-serif);font-style:italic;font-weight:600;
  color:var(--coral);letter-spacing:-.01em;font-size:1.12em;
}
.kicker{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--coral);
}

/* ---- botoes de marca ---- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--coral);color:#fff;border:none;cursor:pointer;
  font-family:var(--font-display);font-weight:700;font-size:16px;letter-spacing:-.01em;
  border-radius:999px;padding:15px 22px;text-decoration:none;
  box-shadow:var(--shadow-coral);
  transition:transform .25s var(--ease),filter .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary svg{width:17px;height:17px;flex:0 0 17px}
.btn-primary:hover{filter:brightness(1.04);transform:translateY(-2px);box-shadow:0 18px 34px -10px rgba(237,111,92,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.62;cursor:default;transform:none;filter:none;box-shadow:none}
.btn-primary.done{background:var(--olive);box-shadow:0 14px 30px -12px rgba(110,116,72,.6)}

.btn-ghost{
  display:inline-flex;align-items:center;gap:7px;cursor:pointer;
  background:transparent;border:1px solid var(--line);border-radius:999px;
  font-family:var(--font-display);font-weight:600;font-size:13.5px;color:var(--ink-soft);
  padding:9px 16px;text-decoration:none;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease),transform .25s var(--ease);
}
.btn-ghost:hover{border-color:var(--coral-soft);color:var(--coral);transform:translateY(-2px);filter:brightness(1.04)}
.btn-ghost svg{width:15px;height:15px;flex:0 0 auto}
.btn-ghost.danger:hover{border-color:#c0463a;color:#c0463a}

/* ==========================================================================
   CAMPOS DE FORMULARIO (o login tem folha propria: login.css)
   ========================================================================== */
.field{margin-bottom:16px}
.field label{
  display:block;font-family:var(--font-display);font-weight:600;
  font-size:13px;letter-spacing:.01em;color:var(--ink-soft);margin-bottom:7px;
}
.field input,.field select,.field textarea{
  width:100%;font-family:var(--font-body);font-size:15px;color:var(--ink);
  background:var(--paper-warm);border:1px solid var(--line);border-radius:12px;
  padding:13px 15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{resize:vertical;min-height:120px;line-height:1.55;font-family:var(--font-mono);font-size:13px}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-faint)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--coral-soft);background:var(--bone);
  box-shadow:0 0 0 3px rgba(237,111,92,.14);
}
.field .hint{margin-top:6px;font-size:12px;color:var(--ink-faint)}
/* ==========================================================================
   BARRA DE IMPERSONACAO (fixa no topo, vale no app do aluno e no admin)
   ========================================================================== */
.imp-bar{
  display:none;position:sticky;top:0;z-index:70;width:100%;
  align-items:center;gap:14px;flex-wrap:wrap;
  padding:11px 20px;background:var(--coral);color:#fff;
  box-shadow:0 10px 24px -18px rgba(21,20,15,.6);
  animation:rise .35s var(--ease) both;
}
.imp-bar.show{display:flex}
.imp-bar .imp-ic{display:grid;place-items:center;width:26px;height:26px;flex:0 0 26px;border-radius:50%;background:rgba(255,255,255,.18)}
.imp-bar .imp-ic svg{width:15px;height:15px}
.imp-bar .imp-txt{font-family:var(--font-display);font-weight:600;font-size:13.5px;line-height:1.35;min-width:0}
.imp-bar .imp-txt b{font-weight:800}
.imp-bar .imp-exit{
  margin-left:auto;cursor:pointer;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.5);border-radius:999px;color:#fff;
  font-family:var(--font-display);font-weight:700;font-size:12.5px;padding:8px 16px;
  display:inline-flex;align-items:center;gap:7px;
  transition:background .2s var(--ease),transform .25s var(--ease);
}
.imp-bar .imp-exit:hover{background:rgba(255,255,255,.28);transform:translateY(-2px);filter:brightness(1.04)}
.imp-bar .imp-exit svg{width:14px;height:14px}

/* ==========================================================================
   SHELL DO APP · sidebar + conteudo
   ========================================================================== */
.member-body{position:relative;z-index:1}
.app{display:flex;min-height:100vh}
.app[hidden]{display:none}

/* ---- topbar mobile ---- */
.topbar{
  display:none;position:sticky;top:var(--top-bar);z-index:30;
  align-items:center;gap:14px;
  padding:12px 16px;background:var(--bone);border-bottom:1px solid var(--line);
}
.hamburger{
  display:grid;place-items:center;width:42px;height:42px;cursor:pointer;flex:0 0 42px;
  background:var(--paper-warm);border:1px solid var(--line);border-radius:12px;
  transition:border-color .2s var(--ease);
}
.hamburger:hover{border-color:var(--coral-soft)}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink-soft);border-radius:2px;position:relative}
.hamburger span:before,.hamburger span:after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-soft);border-radius:2px}
.hamburger span:before{top:-6px}
.hamburger span:after{top:6px}
.scrim{display:none;position:fixed;top:var(--top-bar);left:0;right:0;bottom:0;background:rgba(21,20,15,.4);z-index:35}

/* ---- sidebar ---- */
.sidebar{
  width:300px;flex:0 0 300px;
  background:var(--bone);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  position:sticky;top:var(--top-bar);height:calc(100vh - var(--top-bar));
}
.sidebar-top{flex:0 0 auto;padding:24px 22px 18px;border-bottom:1px solid var(--line-soft)}
.sidebar-top .kicker{display:block;margin-bottom:10px;font-size:10px}
.sidebar-top .wordmark{font-size:21px}
.sidebar-top .wm-sub{display:block;margin-top:7px;font-family:var(--font-body);font-weight:400;font-size:11.5px;letter-spacing:0;color:var(--ink-faint);line-height:1.35}

/* submenu lateral com scroll proprio, padrao .manual-subnav do molde */
.nav,.manual-subnav{
  flex:1 1 auto;min-height:0;overflow-y:auto;padding:14px 12px 10px;
  scrollbar-width:thin;scrollbar-color:var(--line) transparent;
}
.manual-subnav::-webkit-scrollbar,.nav::-webkit-scrollbar{width:7px}
.manual-subnav::-webkit-scrollbar-thumb,.nav::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}

/* ---- grupo de navegacao (padrao .manual-nav-group) ---- */
.manual-nav-group{margin-bottom:6px}
.manual-nav-group:first-child{margin-top:2px}
.manual-nav-label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-faint);padding:14px 12px 7px;display:block;
}

/* ---- item de navegacao raiz ---- */
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;width:100%;text-align:left;cursor:pointer;
  background:transparent;border:none;border-radius:13px;
  padding:10px 11px;margin:2px 0;color:var(--ink-soft);
  font-family:var(--font-body);font-size:14.5px;line-height:1.3;
  transition:background .2s var(--ease),color .2s var(--ease),transform .25s var(--ease);
}
.nav-item:hover{background:var(--paper-warm);color:var(--ink);transform:translateX(2px)}
.nav-item .num{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--font-display);font-weight:700;font-size:13px;
  background:var(--paper-dark);color:var(--ink-mute);
  border:1.5px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-item .num svg{width:16px;height:16px}
.nav-item .label{font-weight:500;flex:1;min-width:0}
.nav-item.active{background:var(--paper-warm);color:var(--ink)}
.nav-item.active .num{background:var(--coral);color:#fff;border-color:var(--coral);box-shadow:0 6px 14px -6px rgba(237,111,92,.8)}
.nav-item.active .label{font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:-1px;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:3px;background:var(--coral);
}

/* ---- cabecalho do grupo de gravacoes (abre e fecha) ---- */
.nav-parent .chev{flex:0 0 15px;width:15px;height:15px;color:var(--ink-faint);transition:transform .28s var(--ease),color .2s var(--ease)}
.nav-parent:hover .chev{color:var(--ink-mute)}
.manual-nav-group.open .nav-parent .chev{transform:rotate(180deg)}
.nav-parent .count{
  flex:0 0 auto;font-family:var(--font-mono);font-size:10.5px;color:var(--ink-faint);
  background:var(--paper-dark);border-radius:999px;padding:2px 8px;
}

/* cascata: abre e fecha suave via grid-template-rows, curva do molde */
.nav-sub{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease)}
.manual-nav-group.open .nav-sub{grid-template-rows:1fr}
.nav-sub-inner{overflow:hidden;min-height:0}
.nav-sub-pad{padding:4px 0 8px 6px;border-left:1px solid var(--line-soft);margin-left:22px}

/* ---- item de encontro no submenu (padrao .manual-nav-item) ---- */
.manual-nav-item{
  position:relative;display:flex;align-items:flex-start;gap:11px;width:100%;text-align:left;cursor:pointer;
  background:transparent;border:none;border-radius:12px;
  padding:9px 10px;margin:1px 0;color:var(--ink-soft);
  font-family:var(--font-body);font-size:13.5px;line-height:1.3;
  transition:background .2s var(--ease),color .2s var(--ease),transform .25s var(--ease);
}
.manual-nav-item:hover{background:var(--paper-warm);color:var(--ink);transform:translateX(2px)}
.manual-nav-item.is-active{background:var(--paper-warm);color:var(--ink)}
.manual-nav-item.is-active::before{
  content:"";position:absolute;left:-7px;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:3px;background:var(--coral);
}
.enc-seal{
  flex:0 0 28px;width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;margin-top:1px;
  font-family:var(--font-mono);font-weight:500;font-size:11.5px;letter-spacing:.02em;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.manual-nav-item:hover .enc-seal{transform:translateY(-2px);filter:brightness(1.04)}
.enc-seal.is-coral{background:var(--coral);color:#fff;box-shadow:0 6px 14px -8px rgba(237,111,92,.9)}
.enc-seal.is-mustard{background:var(--mustard);color:var(--ink);box-shadow:0 6px 14px -8px rgba(233,185,74,.9)}
.enc-seal.is-olive{background:var(--olive);color:#fff;box-shadow:0 6px 14px -8px rgba(110,116,72,.9)}
.enc-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.enc-title{font-weight:500;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.manual-nav-item.is-active .enc-title{font-weight:600}
.enc-meta{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.04em;color:var(--ink-faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.enc-check{flex:0 0 18px;width:18px;height:18px;margin-top:5px;color:var(--olive);opacity:0;transition:opacity .2s var(--ease)}
.enc-check svg{width:18px;height:18px;display:block}
.manual-nav-item.is-done .enc-check{opacity:1}
.enc-empty{padding:12px 12px 14px;font-size:12.5px;color:var(--ink-faint);font-style:italic;line-height:1.5}

/* ---- rodape da sidebar ---- */
.sidebar-foot{
  flex:0 0 auto;border-top:1px solid var(--line-soft);padding:16px 18px;
  display:flex;flex-direction:column;gap:11px;
}
.user-row{display:flex;align-items:center;gap:11px}
.avatar{
  flex:0 0 38px;width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--coral);color:#fff;
  font-family:var(--font-display);font-weight:700;font-size:15px;
}
.user-meta{min-width:0}
.user-meta .name{font-family:var(--font-display);font-weight:600;font-size:14px;color:var(--ink);line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-meta .email{font-size:11.5px;color:var(--ink-faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.foot-actions{display:flex;gap:8px;flex-wrap:wrap}
.foot-actions .btn-ghost{flex:1;justify-content:center;padding:9px 10px;font-size:12.5px}

/* ==========================================================================
   CONTEUDO
   ========================================================================== */
.content{flex:1;min-width:0;display:flex;flex-direction:column}
.content-inner{width:100%;max-width:1180px;margin:0 auto;padding:46px 40px 90px;animation:rise .6s var(--ease) both}

.lesson-kicker{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--coral);margin-bottom:14px}
.lesson-title{font-family:var(--font-display);font-weight:800;font-size:clamp(28px,5vw,42px);line-height:1.04;letter-spacing:-.03em;color:var(--ink)}
.lesson-title em{font-family:var(--font-serif);font-style:italic;font-weight:600;color:var(--coral)}
.lesson-subtitle{font-family:var(--font-serif);font-style:italic;font-weight:500;font-size:clamp(17px,3.4vw,21px);color:var(--coral);margin-top:10px;letter-spacing:-.005em}

/* ---- meta do encontro ---- */
.enc-facts{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-top:16px}
.fact{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--bone);border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;font-family:var(--font-display);font-weight:600;font-size:12.5px;color:var(--ink-mute);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .25s var(--ease);
}
.fact:hover{transform:translateY(-2px);filter:brightness(1.04)}
.fact svg{width:14px;height:14px;flex:0 0 14px;color:var(--ink-faint)}
.fact.is-done{border-color:var(--olive);color:#4a4f30;background:rgba(110,116,72,.1)}
.fact.is-done svg{color:var(--olive)}

/* ---- area de video 16:9 ---- */
.video-wrap{
  position:relative;width:100%;aspect-ratio:16/9;margin:28px 0 8px;
  border-radius:18px;overflow:hidden;
  background:var(--ink);box-shadow:var(--shadow-card);
}
.video-wrap video{position:absolute;inset:0;width:100%;height:100%;border:0;object-fit:contain;background:var(--ink);display:block}
.video-missing{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;text-align:center;padding:24px;
  background:var(--bone);
}
.video-missing .play{
  width:64px;height:64px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--paper-warm);border:1.5px solid var(--coral-soft);
  box-shadow:0 14px 30px -16px rgba(237,111,92,.6);color:var(--coral);
}
.video-missing .play svg{width:26px;height:26px}
.video-missing .txt{font-family:var(--font-display);font-weight:600;font-size:14px;color:var(--ink-mute);letter-spacing:.01em;max-width:38ch;line-height:1.5}

/* ---- barra de progresso do encontro ---- */
.progress-row{display:flex;align-items:center;gap:12px;margin-top:16px}
.progress-track{flex:1;height:7px;border-radius:999px;background:var(--paper-dark);overflow:hidden}
.progress-fill{height:100%;width:0;border-radius:999px;background:var(--coral);box-shadow:0 0 8px -1px rgba(237,111,92,.6);transition:width .4s var(--ease)}
.progress-pct{font-family:var(--font-mono);font-size:11.5px;color:var(--ink-mute);flex:0 0 auto;min-width:36px;text-align:right}

/* ---- acoes abaixo do player ---- */
.enc-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:20px}

/* ==========================================================================
   MATERIAL · HTML injetado (resumo do encontro e conteudo_html das secoes)
   ========================================================================== */
.material{margin-top:28px;font-size:16px;color:var(--ink-mute);line-height:1.7}
.material > *+*{margin-top:16px}
.material p{max-width:70ch}
.material b,.material strong{color:var(--ink-soft);font-weight:600}
.material a{color:var(--coral);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.material h2,.material h3,.material h4{font-family:var(--font-display);color:var(--ink);letter-spacing:-.02em;margin-top:30px}
.material h2{font-weight:700;font-size:24px}
.material h3{font-weight:700;font-size:19px}
.material h4{font-weight:600;font-size:16px}
.material ul,.material ol{list-style:none;padding:0;margin-top:18px;border-top:1px solid var(--line-soft)}
.material li{position:relative;padding:11px 0 11px 22px;border-bottom:1px solid var(--line-soft);max-width:70ch;transition:transform .25s var(--ease)}
.material li:hover{transform:translateX(2px)}
.material li:before{content:"";position:absolute;left:2px;top:20px;width:6px;height:6px;border-radius:50%;background:var(--coral)}
.material blockquote{
  background:var(--bone);border:1px solid var(--line);border-radius:14px;
  padding:17px 19px;font-size:15px;color:var(--ink-mute);
}
.material table{width:100%;border-collapse:collapse;font-size:14px;margin-top:18px}
.material th{text-align:left;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);font-weight:400;padding:0 12px 11px;border-bottom:1px solid var(--line)}
.material td{padding:12px;border-bottom:1px solid var(--line-soft);vertical-align:top;color:var(--ink-mute)}
.material code{font-family:var(--font-mono);font-size:13px;background:var(--paper-warm);border:1px solid var(--line-soft);border-radius:6px;padding:2px 6px;color:var(--ink-soft)}
.material pre{background:var(--ink);border-radius:16px;overflow:auto;padding:18px;box-shadow:var(--shadow-card)}
.material pre code{background:transparent;border:none;color:var(--bone);font-size:12.5px;line-height:1.6;padding:0}
.material img{border-radius:14px;border:1px solid var(--line);display:block}
.material hr{border:none;border-top:1px solid var(--line);margin:26px 0}

/* ==========================================================================
   MATERIAL DO ENCONTRO · download da transcricao
   Padrao .skill-foot / .skill-download / .skill-activate do molde.
   ========================================================================== */
.skill-foot{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.skill-foot h2{font-family:var(--font-display);font-weight:700;font-size:22px;letter-spacing:-.02em;color:var(--ink)}
.skill-activate{font-size:15px;color:var(--ink-mute);line-height:1.6;margin:10px 0 18px;max-width:70ch}
.skill-activate b{color:var(--ink-soft)}
.skill-download{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--coral);color:#fff;border:1px solid var(--coral);
  font-family:var(--font-display);font-weight:700;font-size:15px;text-decoration:none;
  border-radius:999px;padding:13px 22px;box-shadow:var(--shadow-coral);
  transition:transform .25s var(--ease),filter .25s var(--ease),box-shadow .25s var(--ease);
}
.skill-download:hover{filter:brightness(1.04);transform:translateY(-2px);box-shadow:0 18px 34px -10px rgba(237,111,92,.85)}
.skill-download:active{transform:translateY(0)}
.skill-download svg{width:18px;height:18px;flex:0 0 18px}
.skill-download-file{
  font-family:var(--font-mono);font-weight:500;font-size:12px;letter-spacing:.02em;
  background:rgba(255,255,255,.2);border-radius:999px;padding:4px 11px;
  max-width:32ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
/* sem transcricao: item bloqueado, no padrao is-locked do molde */
.skill-download.is-locked{
  background:color-mix(in oklab,var(--ink) 7%,var(--paper-warm));
  color:var(--ink-mute);border:1px solid var(--line);box-shadow:none;cursor:default;
}
.skill-download.is-locked:hover{transform:none;filter:none;box-shadow:none}
.skill-download.is-locked .skill-download-file{background:var(--paper-dark);color:var(--ink-faint)}

/* cartao de destaque dentro do material (sobe 6px, padrao do molde) */
.material .cardbox,.feature-card{
  background:var(--paper-warm);border:1px solid var(--line);border-radius:18px;
  padding:22px;box-shadow:var(--shadow-card);
  transition:transform .3s var(--ease),border-color .25s var(--ease),box-shadow .3s var(--ease);
}
.material .cardbox:hover,.feature-card:hover{
  transform:translateY(-6px);border-color:var(--coral-soft);
  box-shadow:0 40px 70px -36px rgba(21,20,15,.3);
}

/* ==========================================================================
   ESTADOS: carregando / vazio / erro
   ========================================================================== */
.spinner{
  width:22px;height:22px;border-radius:50%;
  border:2.5px solid var(--line);border-top-color:var(--coral);
  animation:spin .8s linear infinite;
}
.page-loader{position:fixed;inset:0;display:grid;place-items:center;background:var(--paper);z-index:60}
.page-loader[hidden]{display:none}
.center-state{
  min-height:60vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  color:var(--ink-mute);font-size:14.5px;text-align:center;
}

/* estado vazio desenhado, nunca tela oca */
.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:16px;
  background:var(--bone);border:1px solid var(--line);border-radius:22px;
  padding:56px 32px;box-shadow:var(--shadow-card);margin-top:30px;
  animation:rise .5s var(--ease) both;
  transition:border-color .25s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);
}
.empty-state:hover{transform:translateY(-6px);border-color:var(--coral-soft);box-shadow:0 40px 70px -36px rgba(21,20,15,.3)}
.empty-ic{
  width:74px;height:74px;border-radius:50%;display:grid;place-items:center;
  background:var(--paper-warm);border:1.5px solid var(--line);color:var(--coral);
}
.empty-ic svg{width:32px;height:32px}
.empty-state h2{font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:-.02em;color:var(--ink)}
.empty-state p{font-size:14.5px;color:var(--ink-mute);max-width:52ch;line-height:1.6}
.empty-state .kicker{font-size:10.5px}

.inline-msg{font-size:13.5px;border-radius:12px;padding:12px 14px;margin:14px 0}
.inline-msg.error{background:rgba(237,111,92,.12);border:1px solid var(--coral-soft);color:#9c3a2c}
.inline-msg.ok{background:rgba(110,116,72,.12);border:1px solid var(--olive);color:#4a4f30}

.sk{background:var(--paper-warm);border-radius:10px;animation:pulse 1.3s ease-in-out infinite}
.sk-title{height:38px;width:62%;margin-bottom:18px}
.sk-line{height:14px;margin:10px 0}
.sk-line.short{width:44%}
.sk-video{aspect-ratio:16/9;border-radius:18px;margin:26px 0}

/* ==========================================================================
   ANIMACOES · curva unica --ease
   ========================================================================== */
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.55}}
@keyframes tbm-in{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
@keyframes gvfade{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:none}}
@keyframes drawerIn{from{transform:translateX(-100%)}to{transform:translateX(0)}}

/* ==========================================================================
   RESPONSIVO · abaixo de 860px a sidebar vira gaveta
   ========================================================================== */
@media (max-width:1100px){
  .content-inner{padding:38px 28px 80px}
}
@media (max-width:860px){
  .app{flex-direction:column}
  .topbar{display:flex;width:100%}
  .content{width:100%}
  .scrim.show{display:block;animation:rise .25s var(--ease) both}
  .sidebar{
    position:fixed;top:var(--top-bar);bottom:0;left:0;z-index:40;height:auto;width:300px;max-width:86vw;
    transform:translateX(-100%);transition:transform .35s var(--ease);
    box-shadow:0 0 60px -10px rgba(21,20,15,.4);
  }
  .sidebar.open{transform:translateX(0);animation:drawerIn .35s var(--ease) both}
  .content-inner{padding:30px 22px 80px}
  .video-wrap{border-radius:14px;margin:22px 0 8px}
}
@media (max-width:600px){
  .content-inner{padding:24px 16px 70px}
  .video-wrap{border-radius:12px;margin-left:-16px;margin-right:-16px;width:calc(100% + 32px)}
  .empty-state{padding:40px 20px;border-radius:18px}
  .imp-bar{padding:10px 14px;gap:10px}
  .imp-bar .imp-txt{font-size:12.5px;flex:1 1 100%;order:2}
  .imp-bar .imp-exit{order:1}
  .enc-facts{gap:7px}
  .fact{padding:6px 12px;font-size:12px}
  .material pre{margin-left:-16px;margin-right:-16px;border-radius:0}
  .skill-download{width:100%;justify-content:center;flex-wrap:wrap;padding:13px 18px}
  .skill-download-file{max-width:100%}
  .material table{display:block;overflow-x:auto}
}
@media (max-width:400px){
  .lesson-title{font-size:26px}
  .sidebar{width:290px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .nav-item:hover,.manual-nav-item:hover,.material li:hover,.empty-state:hover,.feature-card:hover,.btn-primary:hover,.btn-ghost:hover,.fact:hover{transform:none}
}

/* ==========================================================================
   MANUAL DA NAIA · material de apoio permanente (embed da fonte viva)
   Item global do menu: nao depende de tenant, de linha em tabela nem de
   cadastro do admin. O conteudo NAO e copiado pra ca, e carregado de
   manual.denderson.ai, entao nunca congela numa versao velha.
   ========================================================================== */

/* regua fina: o apoio nao faz parte do plano de negocios do aluno */
.manual-nav-group.is-apoio{
  margin-top:16px;padding-top:6px;
  border-top:1px solid var(--line-soft);
}
.man-item .num svg{width:17px;height:17px}

.manual-lede{
  margin-top:14px;max-width:70ch;
  font-size:16px;line-height:1.6;color:var(--ink-mute);
}

.manual-embed{
  --manual-chrome:300px;
  margin-top:26px;
  background:var(--bone);border:1px solid var(--line);border-radius:18px;
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:border-color .25s var(--ease),box-shadow .3s var(--ease);
}
.manual-embed:hover{border-color:var(--coral-soft)}

/* barra do topo do bloco: origem a esquerda, saida discreta a direita */
.manual-embed-bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 16px;background:var(--paper-warm);
  border-bottom:1px solid var(--line-soft);
}
.manual-embed-host{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--ink-faint);
  min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.manual-embed-out{
  display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;text-decoration:none;
  font-family:var(--font-display);font-weight:600;font-size:12.5px;color:var(--ink-mute);
  background:var(--bone);border:1px solid var(--line);border-radius:999px;padding:6px 13px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .25s var(--ease);
}
.manual-embed-out:hover{border-color:var(--coral-soft);color:var(--coral);transform:translateY(-2px)}
.manual-embed-out svg{width:14px;height:14px;flex:0 0 14px}

/* o quadro ocupa a area util inteira da tela */
.manual-embed-frame{
  position:relative;width:100%;
  height:calc(100vh - var(--top-bar) - var(--manual-chrome));
  min-height:470px;background:var(--bone);
}
.manual-embed-frame iframe{
  position:absolute;inset:0;width:100%;height:100%;
  border:0;display:block;background:var(--bone);
}
/* enquanto carrega vai o spinner da casa, nunca um retangulo branco */
.manual-embed-load{
  position:absolute;inset:0;z-index:2;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--bone);
}
.manual-embed-load-txt{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink-faint);
}

/* saida de emergencia do celular: botao cheio embaixo do quadro */
.manual-embed-foot{
  display:none;padding:12px 14px;
  background:var(--paper-warm);border-top:1px solid var(--line-soft);
}
.manual-embed-foot .btn-ghost{width:100%;justify-content:center;background:var(--bone)}

/* aviso de falha, no padrao de estado do sistema */
.manual-fallback .btn-primary svg{width:16px;height:16px;flex:0 0 16px}
.manual-fallback .inline-msg{margin:0;text-align:center}
.manual-fallback .inline-msg b{font-family:var(--font-mono);font-size:12.5px}

@media (max-width:1100px){
  .manual-embed{--manual-chrome:288px}
}
@media (max-width:860px){
  .manual-embed{--manual-chrome:348px;margin-top:22px;border-radius:14px}
  .manual-embed-frame{min-height:440px}
}
@media (max-width:600px){
  .manual-embed{--manual-chrome:386px;border-radius:12px}
  .manual-embed-frame{min-height:420px}
  .manual-embed-foot{display:block}
  .manual-embed-host{font-size:10px;letter-spacing:.05em}
  .manual-embed-out{padding:6px 11px;font-size:12px}
  .manual-lede{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  .manual-embed-out:hover{transform:none}
}