/* Base */
:root{
  --max-page-width: 980px;
  --sticky-offset: 120px;

  --text: #111;
  --muted: rgba(17,17,17,.68);
  --border: rgba(0,0,0,.12);

  --bg-app: #f4f5f7;
  --surface: rgba(255,255,255,.90);
  --surface-2: rgba(255,255,255,.82);

  --radius-xl: 18px;
  --radius-lg: 14px;

  --shadow-1: 0 10px 30px rgba(0,0,0,.08), 0 2px 10px rgba(0,0,0,.05);
  --shadow-2: 0 18px 50px rgba(0,0,0,.18), 0 6px 18px rgba(0,0,0,.12);

  --focus: 0 0 0 3px rgba(0,0,0,.28);
}

*{ box-sizing: border-box; }
html, body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: var(--bg-app);
  color: var(--text);
}

body.is-modal-open{ overflow: hidden; }

/* Fixed premium header */
.topbar-wrap{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 12px 12px 0;
  pointer-events: none;
}

.topbar-card{
  max-width: var(--max-page-width);
  margin: 0 auto;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  backdrop-filter: blur(14px);
  border: 1px solid rgba(0,0,0,.10);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  pointer-events: auto;
}


.topbar-card{
  transition: box-shadow 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.topbar-card.is-compact{
  box-shadow: 0 8px 22px rgba(0,0,0,.08), 0 2px 8px rgba(0,0,0,.05);
}

.topbar-card.is-compact .topbar-row{
  padding: 9px 12px;
}

.topbar-card.is-compact .nav-row{
  padding: 9px 12px;
  gap: 8px;
}

.topbar-card.is-compact .brand .subtitle{
  opacity: .85;
}

.topbar-card.is-compact .nav-kicker{ display:none; }
.topbar-card.is-compact .nav-hint{ display:none; }
.topbar-card.is-compact .nav-title{ margin-top: 0; }

.topbar-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 14px;
}

.brand{
  display:flex;
  flex-direction:column;
  gap:2px;
  line-height:1.1;
}

.brand .title{
  font-size: 14px;
  font-weight: 720;
  letter-spacing: .2px;
}

.brand .subtitle{
  font-size: 12px;
  color: var(--muted);
}

.lang-switch{
  display:flex;
  align-items:center;
  gap: 4px;
  padding: 4px;
  border-radius: 14px;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.65);
}

.lang-switch button{
  appearance:none;
  border: 0;
  background: transparent;
  color: rgba(17,17,17,.85);
  padding: 8px 12px;
  border-radius: 12px;
  cursor:pointer;
  font-weight:700;
  min-width: 44px;
}

.lang-switch button:focus-visible{ box-shadow: var(--focus); outline: none; }

.lang-switch button[aria-pressed="true"]{
  background: #111;
  color: #fff;
}

.nav-row{
  display:flex;
  align-items:stretch;
  gap: 10px;
  padding: 12px 14px 12px;
  border-top: 1px solid rgba(0,0,0,.08);
}

.nav-icon{
  appearance:none;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.78);
  width: 44px;
  min-width: 44px;
  border-radius: var(--radius-lg);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size: 18px;
  line-height: 1;
}

.nav-icon:hover{ border-color: rgba(17,17,17,.22); }
.nav-icon:focus-visible{ box-shadow: var(--focus); outline:none; }

.nav-trigger{
  appearance:none;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.78);
  border-radius: var(--radius-lg);
  cursor:pointer;
  flex: 1;
  min-width: 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  padding: 10px 12px;
  text-align:left;
}

.nav-trigger:hover{ border-color: rgba(17,17,17,.22); }
.nav-trigger:focus-visible{ box-shadow: var(--focus); outline:none; }

.nav-trigger-inner{ min-width:0; }

.nav-kicker-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 10px;
}

.nav-kicker{
  font-size: 11px;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: rgba(17,17,17,.58);
}

.nav-hint{
  display:flex;
  align-items:center;
  gap: 6px;
  color: rgba(17,17,17,.55);
}


.nav-crumb{
  margin-top: 6px;
  font-size: 12px;
  font-weight: 720;
  letter-spacing: .2px;
  color: rgba(17,17,17,.62);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kbd{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.72);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2px;
}

.nav-title{
  font-size: 14px;
  font-weight: 760;
  letter-spacing: .2px;
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-sub{
  font-size: 12px;
  color: rgba(17,17,17,.62);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-sub:empty{ display:none; }

.nav-search{
  width: 32px;
  height: 32px;
  border-radius: 12px;
  display:flex;
  align-items:center;
  justify-content:center;
  color: rgba(17,17,17,.62);
}


.nav-right{
  display:flex;
  align-items:center;
  gap: 8px;
}

.nav-chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.80);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: .3px;
  color: rgba(17,17,17,.72);
}

.progress{
  height: 2px;
  background: rgba(17,17,17,.08);
}

.progress-bar{
  height: 100%;
  width: 0%;
  background: rgba(17,17,17,.65);
  transform-origin: left center;
}

main{
  padding: calc(var(--sticky-offset) + 16px) 12px 28px;
}

/* Page stack */
.lang{ display:none; }
.lang.is-active{ display:block; }

.page{
  position: relative;
  scroll-margin-top: calc(var(--sticky-offset) + 14px);
  max-width: var(--max-page-width);
  margin: 0 auto 18px;
  background: #fff;
  border: 1px solid var(--border);
}

.page img{
  display:block;
  width:100%;
  height:auto;
}

/* Optional hotspots (PDF links), scaled via percentages */
.hotspots{
  position:absolute;
  inset:0;
  pointer-events:none;
}

.hotspot{
  position:absolute;
  pointer-events:auto;
  text-decoration:none;
  outline: none;
  border-radius: 6px;
}

.hotspot:focus-visible{ box-shadow: var(--focus); }

/* Command palette */
.cmdk-overlay[hidden]{ display:none; }
.cmdk-overlay{
  position: fixed;
  inset: 0;
  z-index: 140;
  background: rgba(0,0,0,.36);
  backdrop-filter: blur(8px);
  display:flex;
  justify-content:center;
  align-items:center;
  padding: calc(var(--sticky-offset) + 12px) 12px 16px;
}

.cmdk{
  width: 100%;
  max-width: 760px;
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(0,0,0,.16);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}

.cmdk-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(0,0,0,.10);
}

.cmdk-title{
  font-size: 13px;
  font-weight: 780;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: rgba(17,17,17,.70);
}

.cmdk-close{
  appearance:none;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.78);
  border-radius: 12px;
  width: 40px;
  height: 40px;
  cursor:pointer;
  font-size: 16px;
}

.cmdk-close:hover{ border-color: rgba(17,17,17,.22); }
.cmdk-close:focus-visible{ box-shadow: var(--focus); outline:none; }

.cmdk-search{
  padding: 12px 14px;
  border-bottom: 1px solid rgba(0,0,0,.08);
}

.cmdk-input{
  width: 100%;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.86);
  border-radius: 14px;
  padding: 12px 12px;
  font-size: 14px;
  outline: none;
}

.cmdk-input:focus{ box-shadow: var(--focus); border-color: rgba(0,0,0,.20); }

.cmdk-body{
  height: min(44vh, 420px);
  overflow: hidden;
}


.cmdk-split{
  height: 100%;
  display:grid;
  grid-template-columns: 1fr;
}

.cmdk-list{
  height: 100%;
  overflow: auto;
  padding: 10px 10px 12px;
}

.cmdk-preview{
  height: 100%;
  border-left: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.78);
  padding: 12px;
  display:flex;
}

.cmdk-preview-inner{
  width: 100%;
  display:flex;
  flex-direction:column;
  gap: 10px;
}

.cmdk-preview-kicker{
  font-size: 11px;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: rgba(17,17,17,.55);
}

.cmdk-preview-title{
  font-size: 14px;
  font-weight: 820;
  letter-spacing: .2px;
  color: rgba(17,17,17,.82);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cmdk-preview-media{
  flex: 1 1 auto;
  border-radius: 16px;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(17,17,17,.04);
  overflow: hidden;
  display:flex;
  align-items:center;
  justify-content:center;
}

.cmdk-preview-img{
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display:block;
  opacity: 0;
  transition: opacity 140ms ease;
}

.cmdk-preview-img.is-visible{ opacity: 1; }

.cmdk-preview-hint{
  font-size: 12px;
  color: rgba(17,17,17,.60);
}

.cmdk-group{
  padding: 10px 10px 6px;
  font-size: 11px;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: rgba(17,17,17,.55);
}

.cmdk-item{
  width: 100%;
  appearance:none;
  border: 1px solid rgba(0,0,0,.08);
  background: rgba(255,255,255,.86);
  border-radius: 14px;
  padding: 10px 10px;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap: 10px;
  text-align:left;
}

.cmdk-item + .cmdk-item{ margin-top: 8px; }

.cmdk-item:hover{ border-color: rgba(17,17,17,.22); }

.cmdk-item.is-active{
  border-color: rgba(17,17,17,.34);
  box-shadow: 0 12px 22px rgba(0,0,0,.10);
}

.cmdk-badge{
  flex: 0 0 auto;
  width: 44px;
  height: 34px;
  border-radius: 12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight: 820;
  letter-spacing: .4px;
  background: rgba(17,17,17,.06);
  border: 1px solid rgba(0,0,0,.08);
}

.cmdk-meta{ min-width: 0; flex: 1 1 auto; }

.cmdk-meta .t{
  font-size: 13px;
  font-weight: 780;
  letter-spacing: .2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cmdk-meta .s{
  margin-top: 2px;
  font-size: 12px;
  color: rgba(17,17,17,.62);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}


.cmdk-thumb{
  flex: 0 0 auto;
  width: 104px;
  height: 60px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.92);
  position: relative;
  box-shadow: 0 10px 18px rgba(0,0,0,.08);
}

.cmdk-thumb img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.cmdk-thumb-label{
  position: absolute;
  left: 8px;
  bottom: 8px;
  font-size: 10px;
  font-weight: 780;
  letter-spacing: .8px;
  text-transform: uppercase;
  padding: 4px 7px;
  border-radius: 999px;
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(0,0,0,.12);
  color: rgba(17,17,17,.78);
}

.cmdk-empty{
  padding: 18px 10px;
  color: rgba(17,17,17,.62);
  font-size: 13px;
}

.cmdk-foot{
  border-top: 1px solid rgba(0,0,0,.10);
  padding: 10px 14px;
  background: rgba(255,255,255,.70);
}

.cmdk-help{
  display:flex;
  align-items:center;
  gap: 8px;
  flex-wrap: wrap;
  color: rgba(17,17,17,.60);
  font-size: 12px;
}

.cmdk-help .key{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid rgba(0,0,0,.10);
  background: rgba(255,255,255,.80);
  font-weight: 720;
}

.cmdk-help .sep{
  width: 1px;
  height: 14px;
  background: rgba(0,0,0,.10);
  margin: 0 2px;
}

/* Responsive tweaks */
@media (max-width: 560px){
  main{ padding-left: 0; padding-right: 0; }
  .page{
    border-left: 0;
    border-right: 0;
    border-radius: 0;
  }
  .topbar-wrap{ padding-left: 8px; padding-right: 8px; }
  .brand .title{ font-size: 13px; }
  .cmdk{ border-radius: 16px; }
}


@media (max-width: 780px){
  .cmdk-split{ grid-template-columns: 1fr; }
  .cmdk-preview{ display:none; }
  .cmdk-list{ padding: 10px 10px 12px; }
  .cmdk-body{ height: min(52vh, 440px); }
}

/* Pressed states (premium feedback) */
.nav-icon:active,
.nav-trigger:active,
.cmdk-close:active{
  transform: translateY(1px);
}

.nav-trigger:active{
  background: rgba(255,255,255,.92);
}

.lang-switch button:active{
  transform: translateY(1px);
}

.cmdk-item:active{
  transform: translateY(1px);
}

.cmdk-handle{
  display:none;
}

/* Mobile premium: bottom-sheet command palette */
@media (max-width: 640px){
  .cmdk-overlay{
    align-items: flex-end;
    padding: 0 10px 10px;
  }

  .cmdk{
    max-width: 100%;
    border-radius: 20px;
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
    will-change: transform;
    transform: translateY(0px);
  }

  .cmdk-body{ height: min(52vh, 440px); }

  .cmdk.is-dragging{
    transition: none !important;
  }

  .cmdk-handle{
    display:block;
    width: 46px;
    height: 5px;
    border-radius: 999px;
    background: rgba(17,17,17,.18);
    margin: 10px auto 0;
  }

  .cmdk-head{
    padding-top: 8px;
  }

  .cmdk-close{
    width: 44px;
    height: 44px;
  }

  .cmdk-input{
    padding: 14px 14px;
    border-radius: 16px;
  }

  .cmdk-item{
    padding: 12px 12px;
    border-radius: 16px;
  }

  .cmdk-badge{
    width: 48px;
    height: 38px;
  }

  .nav-icon{
    width: 48px;
    min-width: 48px;
    font-size: 20px;
  }

  .nav-trigger{
    padding: 12px 14px;
    min-height: 56px;
  }

  .lang-switch button{
    padding: 10px 14px;
    min-width: 48px;
  }
}

@media (max-width: 560px){
  /* Force compact look on small screens */
  .topbar-card .topbar-row{ padding: 9px 12px; }
  .topbar-card .nav-row{ padding: 9px 12px; gap: 8px; }
  .topbar-card .nav-kicker{ display:none; }
  .topbar-card .nav-hint{ display:none; }
}

/* =========================
   Dark UI theme (Header + Menu)
   Apenas afecta a camada de navegação (não mexe nas páginas do PDF).
   ========================= */

/* Header card */
.topbar-card{
  background: linear-gradient(135deg, rgba(36,40,60,.92), rgba(24,26,38,.92)) !important;
  border-color: rgba(255,255,255,.10) !important;
  box-shadow: 0 18px 46px rgba(0,0,0,.38), 0 6px 18px rgba(0,0,0,.24) !important;
}

.topbar-card.is-compact{
  box-shadow: 0 12px 34px rgba(0,0,0,.34), 0 4px 12px rgba(0,0,0,.22) !important;
}

.topbar-card .brand .title{ color: rgba(255,255,255,.92) !important; }
.topbar-card .brand .subtitle{ color: rgba(255,255,255,.72) !important; }

/* Language switch */
.lang-switch{
  background: rgba(255,255,255,.08) !important;
  border-color: rgba(255,255,255,.14) !important;
}

.lang-switch button{
  color: rgba(255,255,255,.88) !important;
}

.lang-switch button[aria-pressed="true"]{
  background: rgba(255,255,255,.18) !important;
  color: rgba(255,255,255,.96) !important;
}

/* Nav controls */
.nav-row{ border-top-color: rgba(255,255,255,.10) !important; }

.nav-icon,
.nav-trigger{
  background: rgba(255,255,255,.10) !important;
  border-color: rgba(255,255,255,.14) !important;
}

.nav-icon:hover,
.nav-trigger:hover{ border-color: rgba(255,255,255,.24) !important; }

.nav-kicker,
.nav-hint{ color: rgba(255,255,255,.62) !important; }

.kbd{
  background: rgba(255,255,255,.10) !important;
  border-color: rgba(255,255,255,.14) !important;
  color: rgba(255,255,255,.86) !important;
}

.nav-crumb{ color: rgba(255,255,255,.72) !important; }
.nav-title{ color: rgba(255,255,255,.92) !important; }
.nav-sub{ color: rgba(255,255,255,.72) !important; }
.nav-search{ color: rgba(255,255,255,.72) !important; }

.nav-chip{
  background: rgba(255,255,255,.10) !important;
  border-color: rgba(255,255,255,.14) !important;
  color: rgba(255,255,255,.88) !important;
}

/* Progress bar */
.progress{ background: rgba(255,255,255,.10) !important; }
.progress-bar{ background: linear-gradient(90deg, rgba(74,122,255,.95), rgba(120,92,255,.95)) !important; }

/* Command palette (desktop + mobile sheet) */
.cmdk-overlay{ background: rgba(0,0,0,.45) !important; }

.cmdk{
  background: linear-gradient(135deg, rgba(36,40,60,.96), rgba(24,26,38,.96)) !important;
  border-color: rgba(255,255,255,.12) !important;
  box-shadow: 0 22px 70px rgba(0,0,0,.55), 0 10px 26px rgba(0,0,0,.36) !important;
}

.cmdk-head{ border-bottom-color: rgba(255,255,255,.10) !important; }

.cmdk-title{ color: rgba(255,255,255,.72) !important; }

.cmdk-close{
  background: rgba(255,255,255,.08) !important;
  border-color: rgba(255,255,255,.14) !important;
  color: rgba(255,255,255,.88) !important;
}

.cmdk-search{ border-bottom-color: rgba(255,255,255,.10) !important; }

.cmdk-input{
  background: rgba(255,255,255,.10) !important;
  border-color: rgba(255,255,255,.14) !important;
  color: rgba(255,255,255,.92) !important;
}

.cmdk-input::placeholder{ color: rgba(255,255,255,.52) !important; }

.cmdk-group{ color: rgba(255,255,255,.58) !important; }

.cmdk-item{
  background: rgba(255,255,255,.06) !important;
  border-color: rgba(255,255,255,.10) !important;
  color: rgba(255,255,255,.92) !important;
}

.cmdk-item:hover{ border-color: rgba(255,255,255,.22) !important; }

.cmdk-item.is-active{
  background: rgba(74,122,255,.16) !important;
  border-color: rgba(74,122,255,.42) !important;
  box-shadow: 0 16px 26px rgba(0,0,0,.28) !important;
}

.cmdk-badge{
  background: rgba(74,122,255,.18) !important;
  border-color: rgba(74,122,255,.35) !important;
  color: rgba(255,255,255,.94) !important;
}

.cmdk-meta .t{ color: rgba(255,255,255,.92) !important; }
.cmdk-meta .s{ color: rgba(255,255,255,.70) !important; }




/* =========================
   Mobile scrim + remove desktop keyboard hints on mobile
   ========================= */

@media (max-width: 820px){
  /* scrim atrás do header para garantir contraste com capas claras */
  body::before{
    content:"";
    position: fixed;
    left:0; right:0; top:0;
    height: 160px;
    background: linear-gradient(to bottom, rgba(0,0,0,.26), rgba(0,0,0,0));
    z-index: 30;
    pointer-events:none;
  }

  /* esconder hints de teclado em mobile (não aplicável) */
  .cmdk-foot{ display:none !important; }
}

.topbar-card{ z-index: 60; }