/* Layout Estuda+ limpo: navegação lateral, conteúdo central e apoio contextual. */
:root {
  --clean-purple: #7c3aed;
  --clean-purple-dark: #5b21b6;
  --clean-purple-soft: #f4f0ff;
  --clean-ink: #241b35;
  --clean-muted: #746b82;
  --clean-line: #e8e2ef;
  --clean-bg: #fbfaff;
  --clean-card: #fff;
  --clean-shadow: 0 3px 0 #e2dbe9;
}

html, body { background: var(--clean-bg) !important; }
body:not([data-screen="auth-screen"]) .app-shell { background: var(--clean-bg) !important; }

@media (min-width: 1025px) {
  body:not([data-screen="auth-screen"]) .app-shell {
    display: grid !important;
    grid-template-columns: 238px minmax(0, 1fr) !important;
    width: 100% !important;
    min-height: 100dvh !important;
    overflow: visible !important;
  }

  body:not([data-screen="auth-screen"]) .hero-panel {
    position: sticky !important;
    top: 0 !important;
    z-index: 30 !important;
    display: flex !important;
    align-self: start !important;
    flex-direction: column !important;
    width: 238px !important;
    height: 100dvh !important;
    min-height: 0 !important;
    padding: 24px 14px !important;
    overflow-y: auto !important;
    border: 0 !important;
    border-right: 2px solid var(--clean-line) !important;
    background: #fff !important;
    box-shadow: none !important;
  }

  body:not([data-screen="auth-screen"]) .hero-panel .brand {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 0 10px !important;
  }

  body:not([data-screen="auth-screen"]) .hero-panel .brand-mark {
    width: 42px !important;
    height: 42px !important;
    border-radius: 14px !important;
    font-size: 23px !important;
    box-shadow: 0 3px 0 #e5ddf5 !important;
  }

  body:not([data-screen="auth-screen"]) .brand-wordmark { font-size: 22px !important; }
  body:not([data-screen="auth-screen"]) .brand-wordmark em { font-size: 26px !important; }

  body:not([data-screen="auth-screen"]) .side-menu {
    display: grid !important;
    gap: 6px !important;
    margin-top: 32px !important;
  }

  body:not([data-screen="auth-screen"]) .side-menu button {
    display: grid !important;
    grid-template-columns: 34px minmax(0, 1fr) auto !important;
    align-items: center !important;
    gap: 10px !important;
    width: 100% !important;
    min-height: 52px !important;
    padding: 8px 12px !important;
    border: 2px solid transparent !important;
    border-radius: 13px !important;
    background: transparent !important;
    color: #6f667a !important;
    box-shadow: none !important;
    text-align: left !important;
  }

  body:not([data-screen="auth-screen"]) .side-menu button:hover { background: #f8f5fc !important; }
  body:not([data-screen="auth-screen"]) .side-menu button.active {
    border-color: #cfc0f2 !important;
    background: var(--clean-purple-soft) !important;
    color: var(--clean-purple-dark) !important;
    box-shadow: none !important;
  }

  body:not([data-screen="auth-screen"]) .side-menu button > span {
    display: grid !important;
    place-items: center !important;
    width: 32px !important;
    height: 32px !important;
    border-radius: 10px !important;
    background: #f4f1f8 !important;
    color: var(--clean-purple) !important;
    font-size: 18px !important;
  }

  body:not([data-screen="auth-screen"]) .side-menu button.active > span { background: #fff !important; }
  body:not([data-screen="auth-screen"]) .side-menu button b { display: block !important; min-width: 0 !important; font-size: 13px !important; line-height: 1.25 !important; }
  body:not([data-screen="auth-screen"]) .side-menu button small { display: none !important; }

  body:not([data-screen="auth-screen"]) .hero-copy,
  body:not([data-screen="auth-screen"]) .hero-footer { display: none !important; }

  body:not([data-screen="auth-screen"]) .hero-panel .side-mascot-interactive {
    order: 3 !important;
    display: block !important;
    flex: 0 0 132px !important;
    width: 100% !important;
    height: 132px !important;
    min-height: 132px !important;
    margin: auto 0 0 !important;
    overflow: visible !important;
  }

  body:not([data-screen="auth-screen"]) .hero-panel .side-mascot-interactive::before {
    top: 5px !important;
    padding: 4px 8px !important;
    font-size: 7px !important;
  }

  body:not([data-screen="auth-screen"]) .hero-panel .side-mascot-interactive::after {
    right: 50% !important;
    bottom: 2px !important;
    width: 82px !important;
    height: 82px !important;
    border-width: 3px !important;
    border-radius: 27% 27% 38% 38% !important;
    font-size: 46px !important;
    transform: translateX(50%) !important;
    filter: drop-shadow(0 7px 7px rgba(76, 29, 149, .16)) !important;
  }

  body:not([data-screen="auth-screen"]) .side-mascot-speech {
    left: 50% !important;
    bottom: 91px !important;
    width: max-content !important;
    max-width: 190px !important;
    padding: 7px 10px !important;
    font-size: 9px !important;
    line-height: 1.2 !important;
  }

  body:not([data-screen="auth-screen"]) .side-mascot-wing {
    bottom: 18px !important;
    width: 34px !important;
    height: 43px !important;
    border-width: 2px !important;
  }
  body:not([data-screen="auth-screen"]) .side-mascot-wing.wing-left { left: calc(50% - 54px) !important; }
  body:not([data-screen="auth-screen"]) .side-mascot-wing.wing-right { right: calc(50% - 54px) !important; }
  body:not([data-screen="auth-screen"]) .side-mascot-effects i { bottom: 34px !important; font-size: 17px !important; }
  body:not([data-screen="auth-screen"]) .side-mascot-effects i:nth-child(1) { --effect-x: -42px; }
  body:not([data-screen="auth-screen"]) .side-mascot-effects i:nth-child(3) { --effect-x: 42px; }

  body[data-screen="plans-screen"] .hero-panel .side-mascot-interactive { display: block !important; }

  body:not([data-screen="auth-screen"]) .content-panel {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 100dvh !important;
    padding: 30px clamp(28px, 4vw, 58px) 90px !important;
    background: var(--clean-bg) !important;
  }

  body:not([data-screen="auth-screen"]) .screen.active { margin-inline: auto !important; }
  body:not([data-screen="auth-screen"]) .subject-screen { width: min(100%, 960px) !important; }
  body:not([data-screen="auth-screen"]) .quiz-screen { width: min(100%, 790px) !important; }
  body:not([data-screen="auth-screen"]) .dashboard-screen,
  body:not([data-screen="auth-screen"]) .review-screen,
  body:not([data-screen="auth-screen"]) .friends-screen,
  body:not([data-screen="auth-screen"]) .essay-screen,
  body:not([data-screen="auth-screen"]) .plans-screen,
  body:not([data-screen="auth-screen"]) .material-screen { width: min(100%, 980px) !important; }
}

/* Início e seleção de matéria */
.subject-welcome {
  position: relative !important;
  min-height: 0 !important;
  padding: 24px 26px !important;
  overflow: hidden !important;
  border: 0 !important;
  border-radius: 18px !important;
  background: linear-gradient(135deg, var(--clean-purple-dark), #8b5cf6) !important;
  box-shadow: 0 6px 0 #4c1d95 !important;
  text-align: left !important;
}
.subject-welcome::after { content: '★'; position: absolute; right: 24px; top: -16px; color: #fff; font-size: 120px; opacity: .1; }
.subject-welcome h2 { max-width: 560px !important; margin: 5px 0 !important; color: #fff !important; font-size: clamp(28px, 4vw, 39px) !important; line-height: 1.1 !important; }
.subject-welcome .eyebrow, .subject-welcome .subtitle { color: #eee7ff !important; }
.subject-welcome .subtitle { max-width: 620px !important; margin: 6px 0 15px !important; }
.subject-welcome .tutorial-help-button { position: relative; z-index: 1; border-color: rgba(255,255,255,.45) !important; background: rgba(255,255,255,.12) !important; color: #fff !important; box-shadow: none !important; }
.subject-year-card { margin-top: 24px !important; padding: 18px 20px !important; border: 2px solid var(--clean-line) !important; border-radius: 17px !important; background: #fff !important; box-shadow: var(--clean-shadow) !important; }
.subject-year-card label { min-width: min(100%, 290px) !important; }
.subject-year-card select { min-height: 48px !important; border-color: #d9ccef !important; background: #fff !important; box-shadow: none !important; }
.subject-grid { gap: 12px !important; margin-top: 18px !important; }
.subject-card {
  min-height: 96px !important;
  padding: 15px 16px !important;
  border: 2px solid var(--clean-line) !important;
  border-radius: 16px !important;
  background: #fff !important;
  color: var(--clean-ink) !important;
  box-shadow: var(--clean-shadow) !important;
}
.subject-card:hover { transform: translateY(-2px) !important; border-color: #c9b8ef !important; box-shadow: 0 5px 0 #d9cfeb !important; }
.subject-card .subject-art { background: var(--clean-purple-soft) !important; }
.subject-card strong { color: var(--clean-ink) !important; }
.subject-card small { color: var(--clean-muted) !important; }
.subject-card i { background: var(--clean-purple-soft) !important; color: var(--clean-purple-dark) !important; }

/* Trilha central e coluna direita */
#setup-screen.active { align-items: start !important; }
.duo-topbar { border-color: var(--clean-line) !important; background: rgba(251,250,255,.96) !important; }
.journey-intro { background: linear-gradient(135deg, var(--clean-purple-dark), #8b5cf6) !important; box-shadow: 0 6px 0 #4c1d95 !important; }
.lesson-node.completed { background: var(--clean-purple) !important; box-shadow: 0 8px 0 var(--clean-purple-dark) !important; }
.lesson-node.current { outline-color: #e4d8ff !important; box-shadow: 0 8px 0 #c8bdd5, 0 0 0 3px var(--clean-purple) !important; }
.lesson-node.current::before { background: var(--clean-purple) !important; box-shadow: 0 3px 0 var(--clean-purple-dark) !important; }
.rail-card, .rail-review-button { border-color: var(--clean-line) !important; border-width: 2px !important; border-radius: 16px !important; background: #fff !important; box-shadow: none !important; }
.rail-card-title button, .rail-card-title span { color: var(--clean-purple) !important; }
.rail-progress i, .rail-progress.wide i { background: var(--clean-purple) !important; }
.rail-review-button { color: var(--clean-purple-dark) !important; }

@media (min-width: 1320px) {
  #setup-screen.active {
    grid-template-columns: minmax(0, 680px) 300px !important;
    column-gap: 28px !important;
    width: min(100%, 1008px) !important;
    max-width: 1008px !important;
  }
  #setup-screen.active .duo-topbar { grid-column: 1 / -1 !important; }
  #setup-screen.active #adventure-overview,
  #setup-screen.active #lesson-creator { grid-column: 1 !important; }
  #setup-screen.active .learn-rail { display: grid !important; grid-column: 2 !important; max-height: calc(100dvh - 112px) !important; }
  #setup-screen.active .setup-mobile-leaderboard { display: none !important; }
}

/* Perfil inspirado na referência: identidade forte e estatísticas objetivas. */
.dashboard-header { border-color: var(--clean-line) !important; }
.dashboard-screen > .profile-card {
  min-height: 148px !important;
  margin-top: 20px !important;
  padding: 24px !important;
  border: 2px solid #d9ccef !important;
  border-radius: 20px !important;
  background: linear-gradient(135deg, #f6f1ff, #fff) !important;
  box-shadow: var(--clean-shadow) !important;
}
.dashboard-screen .profile-avatar { width: 96px !important; height: 96px !important; border: 3px solid #fff !important; border-radius: 28px !important; background: #e8ddff !important; box-shadow: 0 4px 0 #cfc1e8 !important; }
.dashboard-screen .profile-card > div:nth-child(2) strong { font-size: clamp(24px, 3vw, 32px) !important; }
.dashboard-stats { gap: 12px !important; }
.dashboard-stats article { padding: 17px !important; border: 2px solid var(--clean-line) !important; border-radius: 15px !important; background: #fff !important; box-shadow: none !important; }
.profile-data-card, .avatar-profile-card, .focus-card, .review-card, .plan-card, .ranking-card, .notebook-card, .accessibility-card, .teacher-card {
  border-color: var(--clean-line) !important;
  border-radius: 17px !important;
  background: #fff !important;
  box-shadow: none !important;
}

/* Navegação móvel curta + menu Mais. */
.mobile-more-menu { display: none; }
@media (max-width: 1024px) {
  .content-panel { background: var(--clean-bg) !important; }
  .app-nav:not([hidden]) {
    display: grid !important;
    grid-template-columns: repeat(6, minmax(0, 1fr)) !important;
    gap: 2px !important;
    padding: 7px max(6px, env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(6px, env(safe-area-inset-left)) !important;
    border-top: 1px solid var(--clean-line) !important;
    background: rgba(255,255,255,.98) !important;
    box-shadow: 0 -8px 24px rgba(65, 39, 91, .08) !important;
  }
  .app-nav > button { min-width: 0 !important; min-height: 58px !important; padding: 5px 2px !important; color: #81778c !important; font-size: 9px !important; line-height: 1.1 !important; }
  .app-nav > button > span { font-size: 19px !important; }
  .app-nav > button.active { border: 0 !important; background: var(--clean-purple-soft) !important; color: var(--clean-purple-dark) !important; box-shadow: none !important; }
  .mobile-more-menu:not([hidden]) {
    position: fixed;
    right: max(10px, env(safe-area-inset-right));
    bottom: calc(78px + env(safe-area-inset-bottom));
    z-index: 80;
    display: grid;
    gap: 6px;
    width: min(290px, calc(100vw - 20px));
    padding: 10px;
    border: 1px solid var(--clean-line);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 18px 48px rgba(43, 24, 62, .2);
  }
  .mobile-more-menu button {
    display: grid !important;
    grid-template-columns: 42px minmax(0, 1fr) auto !important;
    grid-template-rows: auto auto !important;
    align-items: center !important;
    gap: 1px 10px !important;
    min-height: 62px !important;
    padding: 9px 11px !important;
    border: 0 !important;
    border-radius: 12px !important;
    background: transparent !important;
    color: var(--clean-ink) !important;
    text-align: left !important;
  }
  .mobile-more-menu button:hover, .mobile-more-menu button.active { background: var(--clean-purple-soft) !important; color: var(--clean-purple-dark) !important; }
  .mobile-more-menu button > span { grid-row: 1 / 3; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--clean-purple-soft); color: var(--clean-purple); font-size: 20px; }
  .mobile-more-menu button > b { grid-column: 2; font-size: 13px; }
  .mobile-more-menu button > small { grid-column: 2; color: var(--clean-muted); font-size: 10px; }
  .mobile-more-menu button > i { grid-column: 3; grid-row: 1 / 3; display: grid; place-items: center; min-width: 20px; height: 20px; border-radius: 99px; background: #ef4444; color: #fff; font-size: 10px; font-style: normal; }
}

@media (max-width: 640px) {
  .subject-welcome { padding: 21px 19px !important; }
  .subject-welcome::after { right: -8px; font-size: 98px; }
  .subject-year-card { padding: 16px !important; }
  .subject-grid { grid-template-columns: 1fr !important; }
  .dashboard-screen > .profile-card { align-items: center !important; flex-direction: column !important; text-align: center !important; }
  .dashboard-screen .profile-card .logout-button { width: 100% !important; margin-left: 0 !important; }
  .app-nav:not([hidden]) { grid-template-columns: repeat(6, minmax(0, 1fr)) !important; }
}

@media (max-width: 380px) {
  .app-nav > button { font-size: 8px !important; }
  .app-nav > button > span { font-size: 17px !important; }
}

/* Navegação e administração legíveis no celular. */
.app-nav > button > .nav-label {
  display: block;
  max-width: 100%;
  overflow: hidden;
  font-size: inherit !important;
  font-weight: 900;
  line-height: 1.05;
  text-align: center;
  text-overflow: ellipsis;
}
.app-nav .material-nav-button > .nav-label {
  display: block !important;
  width: auto !important;
  height: auto !important;
  border-radius: 0 !important;
  background: transparent !important;
  color: inherit !important;
  box-shadow: none !important;
}
.mobile-more-menu button > b {
  position: static !important;
  top: auto !important;
  right: auto !important;
  display: block !important;
  width: auto !important;
  min-width: 0 !important;
  height: auto !important;
  padding: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  color: inherit !important;
}
.mobile-more-menu .mobile-admin-button {
  border: 1px solid #d8ccf2 !important;
  background: #f8f5ff !important;
  color: #5b21b6 !important;
}

.leaderboard-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin: 10px 0 12px;
}
.leaderboard-stats span {
  display: grid;
  gap: 1px;
  min-width: 0;
  padding: 8px 5px;
  border: 1px solid #e7ddf5;
  border-radius: 11px;
  background: #faf8ff;
  color: #796b85;
  font-size: 8px;
  line-height: 1.2;
  text-align: center;
}
.leaderboard-stats b { color: #5b21b6; font-size: 14px; }
.leaderboard-score b small { color: #8b8094; font-size: 8px; }

.ranking-profile-card { display: grid !important; gap: 13px !important; }
.ranking-profile-card > header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ranking-profile-card > header span { display: block; color: #7c3aed; font-size: 9px; font-weight: 1000; letter-spacing: .8px; }
.ranking-profile-card > header strong { display: block; margin-top: 2px; color: #372643; font-size: 18px; }
.ranking-profile-card > header > b { display: grid; place-items: center; min-width: 54px; height: 42px; border-radius: 13px; background: #ede9fe; color: #6d28d9; font-size: 18px; }
.ranking-profile-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.ranking-profile-stats article { display: grid; gap: 2px; padding: 12px 8px; border: 1px solid #e9e1f2; border-radius: 13px; background: #fbfaff; text-align: center; }
.ranking-profile-stats strong { color: #4c1d95; font-size: 18px; }
.ranking-profile-stats span { color: #81758a; font-size: 9px; }
.ranking-profile-card > p { margin: 0; color: #716579; font-size: 11px; line-height: 1.45; }

@media (max-width: 1024px) {
  .mobile-more-menu:not([hidden]) { max-height: calc(100dvh - 96px); overflow-y: auto; overscroll-behavior: contain; }
  .app-nav > button { grid-template-rows: 30px minmax(18px, auto) !important; align-content: center !important; }
  .app-nav > button > span:first-child { align-self: center; }
  .app-nav > button > .nav-label { align-self: start; white-space: normal; }
}

@media (max-width: 600px) {
  .admin-tabs { scroll-snap-type: x proximity; scrollbar-width: thin; }
  .admin-tabs button { scroll-snap-align: start; min-height: 44px; }
  .admin-table-wrap { -webkit-overflow-scrolling: touch; }
  .ranking-profile-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 380px) {
  .app-nav > button > .nav-label { font-size: 7.5px !important; }
  .leaderboard-stats { grid-template-columns: 1fr; }
}
/* Fluxo compacto de configuração e permissões por plano */
.selected-subject-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 82px;
  padding: 14px 16px;
  border: 2px solid #e8e0f5;
  border-radius: 18px;
  background: linear-gradient(135deg, #fff 0%, #faf7ff 100%);
}
.selected-subject-summary > span {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  flex: 0 0 50px;
  border-radius: 15px;
  background: #f1eaff;
  font-size: 26px;
}
.selected-subject-summary > div { display: grid; gap: 2px; min-width: 0; text-align: left; }
.selected-subject-summary small { color: #766986; font-size: 10px; font-weight: 900; letter-spacing: .1em; }
.selected-subject-summary strong { color: #241634; font-size: 19px; line-height: 1.15; }
.selected-subject-summary button {
  width: fit-content;
  padding: 0;
  border: 0;
  background: transparent;
  color: #6d28d9;
  font-size: 12px;
  font-weight: 900;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.premium-control small { margin-left: 5px; color: inherit; font-size: 9px; font-weight: 900; letter-spacing: .04em; }
.plan-locked { position: relative; border-style: dashed !important; opacity: .72; }
.plan-locked::after {
  content: '🔒';
  display: inline-grid;
  place-items: center;
  margin-left: 5px;
  font-size: 11px;
}
#quiz-form { gap: 14px; }
#quiz-form .form-grid { gap: 12px; }
#quiz-form fieldset { padding: 14px; border-radius: 16px; }
#quiz-form .choice { min-height: 48px; padding: 10px 12px; }
.study-brief { margin-bottom: 12px; }
.study-brief .subtitle { max-width: 660px; }
.dashboard-screen > h3 { margin-block: 22px 10px; }
.profile-data-card, .profile-card, .focus-card, .review-card, .plan-card { border-radius: 18px; }

@media (max-width: 720px) {
  .selected-subject-summary { grid-column: 1 / -1; min-height: 72px; padding: 11px 12px; }
  .selected-subject-summary > span { width: 44px; height: 44px; flex-basis: 44px; font-size: 23px; }
  .selected-subject-summary strong { font-size: 17px; }
  #quiz-form .choice-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #quiz-form .choice { min-width: 0; }
}

@media (max-width: 420px) {
  #quiz-form .choice-row { grid-template-columns: 1fr; }
}