/*
 * Modernização visual da área autenticada.
 * Todos os seletores permanecem sob #app para manter a tela de login intacta.
 */

#app {
  --primary: #f37021;
  --primary-dark: #c94f0b;
  --primary-light: #fff1e8;
  --primary-glow: rgba(243, 112, 33, 0.22);
  --bg: #f6f7fa;
  --surface: #ffffff;
  --surface-alt: #f4f5f7;
  --surface-glass: rgba(255, 255, 255, 0.9);
  --text: #162033;
  --text-secondary: #4d596c;
  --text-muted: #738095;
  --border: #d9dee7;
  --border-light: #e9ecf1;
  --shadow: 0 8px 24px rgba(22, 32, 51, 0.07);
  --shadow-lg: 0 18px 50px rgba(22, 32, 51, 0.12);
  --shadow-glow: 0 14px 34px rgba(243, 112, 33, 0.16);
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 26px;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 5%, rgba(243, 112, 33, 0.09), transparent 24rem),
    radial-gradient(circle at 95% 18%, rgba(15, 45, 87, 0.07), transparent 28rem),
    var(--bg);
}

#app .header {
  top: 0;
  border-bottom: 1px solid rgba(217, 222, 231, 0.9);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 30px rgba(22, 32, 51, 0.07);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}

#app .header-content {
  max-width: 1360px;
  min-height: 76px;
  padding: 14px 28px;
  gap: 24px;
}

#app .logo {
  gap: 14px;
  min-width: 0;
}

#app .logo-icon {
  display: inline-grid;
  width: 46px;
  height: 46px;
  place-items: center;
  flex: 0 0 46px;
  border: 1px solid rgba(243, 112, 33, 0.2);
  border-radius: 14px;
  background: linear-gradient(145deg, #fff8f3, #ffe3d1);
  box-shadow: inset 0 1px 0 #fff, 0 8px 18px rgba(243, 112, 33, 0.13);
  font-size: 1.55rem;
}

#app .logo h1 {
  max-width: 760px;
  color: var(--text);
  font-size: 1.22rem;
  line-height: 1.22;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

#app .subtitle {
  display: block;
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

#app .header-right {
  gap: 10px;
}

#app .user-name {
  max-width: 240px;
  overflow: hidden;
  color: var(--text-secondary);
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#app .role-badge {
  padding: 5px 11px;
  border-radius: 999px;
  letter-spacing: 0.055em;
}

#app .role-badge.especial {
  border: 1px solid rgba(243, 112, 33, 0.38);
  background: linear-gradient(135deg, #fff7ed, #ffedd5);
  color: #9a3412;
  box-shadow: 0 3px 12px rgba(243, 112, 33, 0.14);
}

#app .exercise-read-only {
  margin-top: 14px;
  padding: 11px 13px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 10px;
  background: rgba(248, 250, 252, 0.82);
  color: var(--text-muted);
  font-size: 0.86rem;
}

#app .btn,
#app .btn-admin-header {
  border-radius: 11px;
  font-weight: 700;
  box-shadow: 0 3px 10px rgba(22, 32, 51, 0.08);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

#app .btn:hover,
#app .btn-admin-header:hover {
  transform: translateY(-1px);
}

#app .tabs-nav {
  top: 76px;
  border-bottom: 1px solid rgba(217, 222, 231, 0.82);
  background: rgba(248, 249, 251, 0.9);
  box-shadow: 0 6px 18px rgba(22, 32, 51, 0.04);
  backdrop-filter: blur(16px) saturate(145%);
  -webkit-backdrop-filter: blur(16px) saturate(145%);
}

#app .tabs-container {
  max-width: 1360px;
  padding: 9px 28px;
  gap: 7px;
}

#app .tab {
  min-height: 42px;
  padding: 8px 14px;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--text-secondary);
  font-weight: 650;
}

#app .tab:hover {
  border-color: var(--border-light);
  color: var(--text);
  background: rgba(255, 255, 255, 0.82);
}

#app .tab.active,
#app .tab-dropdown-toggle.active {
  border-color: rgba(243, 112, 33, 0.22);
  color: var(--primary-dark);
  background: linear-gradient(145deg, #fff, #fff1e8);
  box-shadow: 0 6px 16px rgba(243, 112, 33, 0.12);
}

#app .tab-num {
  display: inline-grid;
  min-width: 28px;
  min-height: 28px;
  place-items: center;
  padding: 3px 7px;
  border-radius: 9px;
  background: #fff;
  box-shadow: inset 0 0 0 1px var(--border-light);
  font-size: 0.88rem;
}

#app .tab.active .tab-num,
#app .tab-dropdown-toggle.active .tab-num {
  color: var(--primary-dark);
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(243, 112, 33, 0.2);
}

#app .tab-label {
  font-size: 0.84rem;
}

#app .tab-dropdown-menu {
  top: calc(100% + 8px);
  min-width: 260px;
  padding: 8px;
  border: 1px solid var(--border-light);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 20px 48px rgba(22, 32, 51, 0.16);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

#app .tab-dropdown-menu button {
  min-height: 40px;
  margin: 2px 0;
  border-radius: 9px;
  color: var(--text-secondary);
  font-weight: 600;
}

#app .tab-dropdown-menu button:hover,
#app .tab-dropdown-menu button.active-unit {
  color: var(--primary-dark);
  background: var(--primary-light);
}

#app .main-content {
  max-width: 1360px;
  min-height: calc(100vh - 300px);
  padding: 38px 28px 60px;
}

#app .tab-content {
  animation-duration: 260ms;
}

#app .unit-header {
  position: relative;
  overflow: hidden;
  margin-bottom: 30px;
  padding: 25px 28px;
  border: 1px solid var(--border-light);
  border-left: 5px solid var(--primary);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.98), rgba(255, 247, 242, 0.94)),
    var(--surface);
  box-shadow: var(--shadow);
}

#app .unit-header::after {
  content: '';
  position: absolute;
  top: -70px;
  right: -50px;
  width: 190px;
  height: 190px;
  border: 30px solid rgba(243, 112, 33, 0.055);
  border-radius: 50%;
  pointer-events: none;
}

#app .unit-header h2 {
  position: relative;
  z-index: 1;
  margin-bottom: 7px;
  color: var(--text);
  font-size: clamp(1.42rem, 2.4vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

#app .unit-desc {
  position: relative;
  z-index: 1;
  max-width: 780px;
  color: var(--text-secondary);
  font-size: 0.97rem;
}

#app .section-title {
  margin-bottom: 20px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
  font-size: 1.13rem;
  letter-spacing: -0.015em;
}

#app .section-title::before {
  content: '';
  width: 4px;
  height: 20px;
  margin-right: 7px;
  border-radius: 999px;
  background: var(--primary);
}

#app .flashcards-grid {
  gap: 18px;
}

#app .flashcard,
#app .exercise-card,
#app .concept-card,
#app .profile-card,
#app .stat-card,
#app .chart-container,
#app .aluno-card,
#app .code-project-header {
  border-color: var(--border-light);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}

#app .flashcard {
  padding: 25px 22px;
}

#app .flashcard:hover {
  transform: translateY(-4px);
  border-color: rgba(243, 112, 33, 0.2);
  box-shadow: var(--shadow-lg);
}

#app .flashcard:hover .flashcard-icon {
  transform: translateY(-2px) scale(1.07);
}

#app .exercise-card {
  padding: 25px;
  box-shadow: 0 8px 28px rgba(22, 32, 51, 0.055);
}

#app .profile-card {
  padding: 36px 30px;
}

#app .profile-avatar {
  display: grid;
  width: 88px;
  height: 88px;
  margin: 0 auto 16px;
  place-items: center;
  border: 1px solid rgba(243, 112, 33, 0.2);
  border-radius: 26px;
  background: linear-gradient(145deg, #fff8f3, #ffe2cf);
  box-shadow: 0 12px 28px rgba(243, 112, 33, 0.14);
  font-size: 3rem;
}

#app .stat-card {
  position: relative;
  overflow: hidden;
}

#app .stat-card::after {
  content: '';
  position: absolute;
  right: -22px;
  bottom: -30px;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: rgba(243, 112, 33, 0.075);
}

#app .stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

#app .aluno-card:hover,
#app .folder-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

#app .folder-card {
  border-radius: 16px;
  box-shadow: 0 7px 22px rgba(22, 32, 51, 0.065);
}

#app .doc-file {
  border-radius: 10px;
}

#app .code-project-header {
  padding: 18px 20px;
  border-radius: 16px;
}

#app .code-project-name-input,
#app .code-project-select {
  border-width: 1px;
  background: #f8f9fb;
}

#app .code-ide-layout,
#app .code-console-full,
#app .code-preview-panel {
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.12);
}

#app .avisos-kicker {
  position: relative;
  z-index: 1;
  display: inline-flex;
  margin-bottom: 9px;
  padding: 5px 10px;
  border: 1px solid rgba(243, 112, 33, 0.18);
  border-radius: 999px;
  color: var(--primary-dark);
  background: rgba(255, 241, 232, 0.82);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.085em;
  text-transform: uppercase;
}

#app .avisos-header {
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.99), rgba(255, 239, 228, 0.96)),
    var(--surface);
}

#app .avisos-gallery {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

#app .avisos-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--border-light);
  border-top: 4px solid var(--primary);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 16px 46px rgba(22, 32, 51, 0.11);
}

#app .avisos-card figcaption {
  padding: 17px 21px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
  background: linear-gradient(90deg, #fff, #fff7f2);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.015em;
}

#app .avisos-card img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  background: #fff;
}

#app .avisos-card--portrait {
  width: min(100%, 720px);
  justify-self: center;
}

#app .footer {
  margin-top: 20px;
  padding: 38px 24px;
  border-top: 4px solid var(--primary);
  background:
    radial-gradient(circle at 12% 0%, rgba(243, 112, 33, 0.18), transparent 18rem),
    linear-gradient(135deg, #13223a, #0b172a);
  box-shadow: 0 -12px 36px rgba(15, 23, 42, 0.1);
}

#app .footer-content {
  max-width: 1360px;
}

#app .footer-main,
#app .footer-dev > span {
  color: #cdd5e1;
}

#app .footer-links a {
  color: #ffad7b;
}

#app .footer-links a:hover {
  color: #ffd3b8;
}

#app .footer .btn-outline {
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

#app :is(button, a, input, select, textarea, [tabindex]):focus-visible {
  outline: 3px solid rgba(243, 112, 33, 0.42);
  outline-offset: 3px;
}

@media (max-width: 1100px) {
  #app .header {
    position: relative;
  }

  #app .tabs-nav {
    top: 0;
  }

  #app .header-content {
    flex-wrap: wrap;
  }

  #app .header-right {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}

@media (max-width: 768px) {
  #app .header-content {
    flex-direction: column;
    padding: 14px 16px 16px;
    text-align: center;
  }

  #app .header-right,
  #app .logo {
    justify-content: center;
  }

  #app .logo h1 {
    max-width: 560px;
    font-size: 1.1rem;
  }

  #app .tabs-container {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 9px 12px;
    gap: 6px;
  }

  #app .tab-dropdown,
  #app .tab-dropdown-toggle {
    width: 100%;
  }

  #app .tab {
    justify-content: center;
    min-width: 0;
    padding: 7px 8px;
  }

  #app .tab-label,
  #app .tab-dropdown .tab-label {
    display: inline;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  #app .tab-dropdown-menu {
    left: 0;
    min-width: min(280px, calc(100vw - 24px));
  }

  #app .main-content {
    padding: 22px 15px 42px;
  }

  #app .unit-header {
    margin-bottom: 22px;
    padding: 22px 19px;
    border-radius: 19px;
  }

  #app .unit-header::after {
    opacity: 0.65;
  }

  #app .avisos-gallery {
    gap: 19px;
  }

  #app .avisos-card {
    border-radius: 16px;
  }

  #app .avisos-card figcaption {
    padding: 14px 16px;
    font-size: 0.92rem;
  }

  #app .footer {
    padding: 32px 18px;
  }
}

@media (max-width: 520px) {
  #app .tabs-container {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #app .header-right {
    gap: 8px;
  }

  #app .logo h1 {
    max-width: 285px;
    font-size: 1rem;
    line-height: 1.28;
  }

  #app .role-badge,
  #app .coord-label {
    font-size: 0.68rem;
  }

  #app .unit-header h2 {
    font-size: 1.3rem;
  }

  #app .unit-desc {
    font-size: 0.89rem;
  }

  #app .flashcard,
  #app .exercise-card,
  #app .profile-card,
  #app .stat-card {
    padding: 20px 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  #app *,
  #app *::before,
  #app *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}