/**
 * ===============================================================================
 * ARQUIVO: app/static/css/layout.css
 * CAMADA: Estilização / Estrutura da página
 * PAPEL NO SISTEMA:
 *   - Grid principal: sidebar fixa à esquerda + área de conteúdo.
 *   - Sidebar: marca, lista de vestibulares (.side-item) e estatísticas (.side-stats).
 *   - Toolbar: título contextual, busca e botão de adicionar.
 *   - Responsivo: abaixo de 860px a sidebar vira uma barra superior com rolagem horizontal.
 * ===============================================================================
 */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100vh;
}

/* ================================ SIDEBAR ================================ */
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.25rem 0.85rem;
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  overflow-y: auto;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-action {
  display: flex;
  flex-direction: column;
}

.sidebar-close {
  display: none;
}

.mobile-navbar {
  display: none;
}

.sidebar-backdrop {
  display: none;
}

.desktop-only {
  display: inline-flex;
}

.w-full {
  width: 100%;
}

.side-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.side-auth {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  flex: 1;
}

.user-avatar {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}

.user-name {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-strong);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-logout {
  height: 30px;
  padding: 0 0.6rem;
  font-size: 0.78rem;
  gap: 0.35rem;
  flex-shrink: 0;
}

.btn-login {
  width: 100%;
  justify-content: center;
  height: 36px;
  font-size: 0.84rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
}
.brand:hover { text-decoration: none; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--accent);
}
.brand-mark svg { width: 18px; height: 18px; }

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-title { font-size: 0.92rem; font-weight: 600; color: var(--text-strong); }
.brand-sub { font-size: 0.74rem; color: var(--faint); }

.side-section { display: flex; flex-direction: column; }

.side-label {
  margin: 0 0 0.45rem;
  padding: 0 0.6rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--faint);
}

.side-list { display: flex; flex-direction: column; gap: 2px; }

.side-item {
  all: unset;
  box-sizing: border-box;
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.5rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--muted);
  cursor: pointer;
  transition: background var(--fast) var(--ease), color var(--fast) var(--ease);
}
.side-item:hover { background: var(--surface); color: var(--text); }
.side-item:focus-visible { outline: 2px solid var(--accent-line); outline-offset: -2px; }
.side-item.is-active { background: var(--surface-2); color: var(--text-strong); }
.side-item.is-active::before {
  content: "";
  position: absolute;
  left: -0.85rem;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 0 2px 2px 0;
  background: var(--c, var(--accent));
}

.side-dot {
  width: 8px;
  height: 8px;
  margin: 0 3px;
  border-radius: 50%;
  background: var(--c, var(--faint));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c, var(--faint)) 14%, transparent);
}
.side-icon { display: grid; place-items: center; width: 14px; color: var(--faint); }
.side-item.is-active .side-icon { color: var(--accent); }
.side-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.side-count {
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  color: var(--faint);
}

.side-stats {
  margin-top: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.stat {
  padding: 0.7rem 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
}
.stat--wide { grid-column: 1 / -1; }
.stat-value {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-strong);
  letter-spacing: -0.01em;
}
.stat-label { font-size: 0.7rem; color: var(--faint); }
.stat-bar {
  height: 4px;
  margin-top: 0.5rem;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}
.stat-bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  opacity: 0.6;
  transition: width 600ms var(--ease);
}

/* ================================ PRINCIPAL ================================ */
.main {
  min-width: 0;
  width: 100%;
  max-width: var(--content-max-w);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 3.5vw, 3rem) 5rem;
  box-sizing: border-box;
}

.toolbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.2rem 1.5rem;
  margin-bottom: 1.6rem;
}

.toolbar-title {
  min-width: 0;
  flex: 1 1 280px;
}

.page-eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--faint);
}

.page-title {
  margin: 0;
  font-size: clamp(1.5rem, 2.8vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text-strong);
  word-break: break-word;
}

.page-sub {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.toolbar-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  flex: 0 1 auto;
}

/* Busca */
.search {
  position: relative;
  display: flex;
  align-items: center;
  margin: 0;
}
.search > .icon {
  position: absolute;
  left: 0.85rem;
  width: 16px;
  height: 16px;
  color: var(--faint);
  pointer-events: none;
}
.search .search-input {
  width: clamp(200px, 20vw, 320px);
  height: 42px;
  margin: 0;
  padding: 0 2.4rem 0 2.4rem;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-strong);
  box-shadow: none;
  box-sizing: border-box;
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}
.search .search-input:hover { border-color: var(--border-strong); }
.search .search-input:focus {
  background: var(--surface-2);
  border-color: var(--accent-line);
  box-shadow: 0 0 0 3px var(--accent-softer);
}
.search-kbd {
  position: absolute;
  right: 0.65rem;
  pointer-events: none;
  transition: opacity var(--fast);
}
.search:focus-within .search-kbd { opacity: 0; }

/* ================================ RESPONSIVO ================================ */
@media (max-width: 992px) {
  .app {
    grid-template-columns: minmax(0, 1fr);
  }

  .desktop-only {
    display: none !important;
  }

  /* Barra de navegação móvel no topo */
  .mobile-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    position: sticky;
    top: 0;
    z-index: 100;
    height: 56px;
    padding: 0 1rem;
    background: rgba(22, 24, 28, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
  }

  .mobile-menu-btn {
    all: unset;
    box-sizing: border-box;
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    flex-shrink: 0;
    transition: background var(--fast), color var(--fast);
  }
  .mobile-menu-btn:hover {
    background: var(--surface-2);
    color: var(--text-strong);
  }
  .mobile-menu-btn:active {
    transform: scale(0.96);
  }
  .mobile-menu-btn .icon {
    width: 20px;
    height: 20px;
  }

  .mobile-brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    color: inherit;
    min-width: 0;
    flex: 1;
  }
  .mobile-brand:hover {
    text-decoration: none;
  }
  .mobile-brand .brand-mark {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    flex-shrink: 0;
  }
  .mobile-brand .brand-mark svg {
    width: 16px;
    height: 16px;
  }
  .mobile-brand .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    min-width: 0;
  }
  .mobile-brand .brand-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-strong);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .mobile-brand .brand-sub {
    font-size: 0.68rem;
    color: var(--faint);
    font-weight: 500;
  }

  .mobile-nav-search {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    height: 36px;
    padding: 0 0.75rem;
    border-radius: var(--radius-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 0.8rem;
    font-weight: 500;
    text-decoration: none;
    flex-shrink: 0;
    transition: background var(--fast), border-color var(--fast), color var(--fast);
  }
  .mobile-nav-search:hover {
    text-decoration: none;
    background: var(--surface-2);
    color: var(--text-strong);
    border-color: var(--border-strong);
  }
  .mobile-nav-search .icon {
    width: 15px;
    height: 15px;
    color: var(--accent);
  }
  .mobile-search-text {
    font-size: 0.78rem;
    font-weight: 500;
  }

  /* Backdrop do menu lateral */
  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    pointer-events: none;
  }
  body.sidebar-open .sidebar-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* Menu lateral em gaveta (Drawer) */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 86vw);
    height: 100vh;
    height: 100dvh;
    z-index: 999;
    background: var(--bg-elev);
    border-right: 1px solid var(--border-strong);
    box-shadow: 6px 0 32px rgba(0, 0, 0, 0.65);
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 1.25rem 1rem 1.5rem;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  body.sidebar-open .sidebar {
    transform: translateX(0);
  }
  body.sidebar-open {
    overflow: hidden;
  }

  .sidebar-close {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--faint);
    cursor: pointer;
    flex-shrink: 0;
  }
  .sidebar-close:hover {
    background: var(--surface-2);
    color: var(--text-strong);
  }

  .main {
    padding: 1.25rem 1rem 4rem;
  }

  .toolbar {
    margin-bottom: 1.25rem;
    gap: 1rem;
  }
}

@media (max-width: 640px) {
  .toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.85rem;
  }

  .toolbar-actions {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .search {
    flex: 1 1 auto;
    width: 100%;
  }

  .search .search-input {
    width: 100%;
    height: 44px;
    font-size: 0.88rem;
  }

  .search-kbd {
    display: none;
  }

  .page-title {
    font-size: clamp(1.4rem, 5.5vw, 1.7rem);
  }

  .mobile-search-text {
    display: none;
  }
  .mobile-nav-search {
    padding: 0 0.6rem;
  }
}