/* Praxis chapter shell — mobile + desktop polish */

html {

  -webkit-text-size-adjust: 100%;

  text-size-adjust: 100%;

}



.shell {

  padding-top: env(safe-area-inset-top, 0);

  padding-bottom: env(safe-area-inset-bottom, 0);

}



.topnav {

  padding-left: max(14px, env(safe-area-inset-left, 14px));

  padding-right: max(14px, env(safe-area-inset-right, 14px));

}



.sb-foot {

  padding-bottom: max(10px, env(safe-area-inset-bottom, 10px));

}



.praxis-home {

  display: inline-flex;

  align-items: center;

  gap: 4px;

  margin-bottom: 6px;

  font-family: "IBM Plex Mono", monospace;

  font-size: 0.52rem;

  letter-spacing: 0.08em;

  text-transform: uppercase;

  text-decoration: none;

  opacity: 0.65;

  transition: opacity 0.2s;

}



.praxis-home:hover {

  opacity: 1;

}



.progress-pill {

  display: inline-block;

  margin-top: 6px;

  padding: 3px 8px;

  border-radius: 999px;

  font-family: "IBM Plex Mono", monospace;

  font-size: 0.48rem;

  letter-spacing: 0.06em;

  text-transform: uppercase;

}



.tab {

  min-height: 44px;

  touch-action: manipulation;

  -webkit-tap-highlight-color: transparent;

}



.sec-btn,

.quiz button,

.btn {

  min-height: 44px;

  touch-action: manipulation;

  -webkit-tap-highlight-color: transparent;

}



.quiz button {

  padding: 10px 12px;

  line-height: 1.35;

}



/* Read + Prove: unified full-page scroll (all viewports) */

body.tab-read .shell,

body.tab-prove .shell {

  height: auto;

  min-height: 100dvh;

  overflow-y: auto;

  overflow-x: hidden;

}



body.tab-read,

body.tab-prove {

  overflow: auto;

  height: auto;

}



body.tab-read .body,

body.tab-prove .body {

  display: block;

  min-height: 0;

  overflow: visible;

}



body.tab-read .sidebar,

body.tab-prove .sidebar {

  max-height: none !important;

  overflow: visible;

  border-right: none;

  border-bottom: 1px solid rgba(148, 163, 184, 0.12);

}



body.theme-chem.tab-read .sidebar,

body.theme-chem.tab-prove .sidebar {

  border-bottom-color: rgba(245, 158, 11, 0.12);

}



body.theme-bio.tab-read .sidebar,

body.theme-bio.tab-prove .sidebar {

  border-bottom-color: rgba(34, 211, 238, 0.12);

}



body.tab-read .sb-scroll,

body.tab-prove .sb-scroll {

  overflow: visible;

}



body.tab-read .main-panel,

body.tab-prove .main-panel {

  min-height: auto;

  overflow: visible;

}



body.tab-read .main-panel.scroll,

body.tab-prove .main-panel.scroll {

  overflow: visible;

}



.sb-scroll.custom-scrollbar,

.main-panel.scroll.custom-scrollbar {

  scrollbar-width: thin;

  scrollbar-color: rgba(148, 163, 184, 0.35) transparent;

}



.sb-scroll.custom-scrollbar::-webkit-scrollbar,

.main-panel.scroll.custom-scrollbar::-webkit-scrollbar {

  width: 6px;

}



.sb-scroll.custom-scrollbar::-webkit-scrollbar-thumb,

.main-panel.scroll.custom-scrollbar::-webkit-scrollbar-thumb {

  background: rgba(148, 163, 184, 0.35);

  border-radius: 999px;

}



@media (max-width: 900px) {

  .ch-name {

    font-size: 1.05rem;

    line-height: 1.25;

  }



  .ch-sub {

    font-size: 0.62rem;

    line-height: 1.45;

  }



  .tab {

    font-size: 0.52rem;

    padding: 10px 4px;

  }



  .tab span {

    display: none;

  }



  .main-panel.scroll {

    padding: 16px max(14px, env(safe-area-inset-left, 14px)) 24px max(14px, env(safe-area-inset-right, 14px));

  }



  /* Reality: split — study panel + 3D canvas */

  body.tab-reality .body {

    grid-template-columns: 1fr;

    grid-template-rows: minmax(220px, 44dvh) minmax(280px, 1fr);

  }



  body.tab-reality .sidebar {

    max-height: 44dvh;

    border-bottom: 1px solid rgba(148, 163, 184, 0.12);

  }



  body.theme-chem.tab-reality .sidebar {

    border-bottom-color: rgba(245, 158, 11, 0.12);

  }



  body.theme-bio.tab-reality .sidebar {

    border-bottom-color: rgba(34, 211, 238, 0.12);

  }



  body.tab-reality .main-panel {

    min-height: 280px;

  }



  body.tab-reality .stage-label,

  body.tab-reality .stage-mode {

    font-size: 0.42rem;

    max-width: 45%;

    overflow: hidden;

    text-overflow: ellipsis;

    white-space: nowrap;

  }



  body.tab-reality .stage-mode {

    max-width: 50%;

  }

}



@media (max-width: 480px) {

  .paper-head h2 {

    font-size: 1.15rem;

  }



  .pq {

    padding: 12px;

  }



  .pq-actions {

    flex-direction: column;

  }



  .pq-actions button {

    width: 100%;

    min-height: 44px;

  }

}



/* Badge / account modals — mobile safe (detail styles injected by praxis-core.js) */

.badge-overlay {

  overflow-y: auto;

  -webkit-overflow-scrolling: touch;

  align-items: flex-start;

  padding-top: max(20px, env(safe-area-inset-top, 20px));

  padding-bottom: max(20px, env(safe-area-inset-bottom, 20px));

}



.badge-overlay.show {

  align-items: center;

}



@media (max-width: 480px) {

  .badge-card {

    max-width: 100%;

    margin: auto 0;

    padding: 22px 18px 18px;

  }



  .badge-title {

    font-size: 1.35rem !important;

  }



  .badge-seal-wrap {

    width: 170px !important;

    height: 220px !important;

  }

}