/* =============================================
   Layout — Sidebar, Topbar, Main, Views
   Inspirado no serena-dashboard-v2
   ============================================= */

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-base);
  background: var(--bg-page);
  color: var(--text-primary);
  overflow-x: hidden;
  transition: background-color var(--transition), color var(--transition);
  display: flex;
  flex-direction: column;
}

/* ====== Layout principal ====== */
.app {
  display: grid;
  grid-template-columns: 260px 1fr;
  grid-template-rows: 70px 1fr;
  grid-template-areas:
    "sidebar topbar"
    "sidebar main";
  flex: 1;
  transition: grid-template-columns 0.3s ease;
}

.app.sidebar-collapsed {
  grid-template-columns: 0 1fr;
}

/* ====== Sidebar ====== */
.sidebar {
  grid-area: sidebar;
  background: var(--color-navy-dark);
  color: var(--text-inverse);
  padding: 0;
  display: flex;
  flex-direction: column;
  transition: width 0.3s ease, opacity 0.3s ease;
  overflow: hidden;
  width: 260px;
  height: 100%;
  align-self: stretch;
}

.app.sidebar-collapsed .sidebar {
  width: 0;
  opacity: 0;
  padding: 0;
}

.sidebar-logo {
  padding: 40px 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-logo img {
  max-width: 200px;
  height: auto;
  filter: brightness(0) invert(1);
}

.sidebar-nav {
  padding: 20px 0;
  flex: 1;
}

.nav-item {
  padding: 18px 30px;
  cursor: pointer;
  font-size: 0.85rem;
  letter-spacing: 1px;
  font-weight: 500;
  color: var(--text-inverse);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
  gap: 3px;
  transition: background 0.2s;
}

.nav-item small {
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 1px;
  opacity: 0.7;
}

.nav-item:hover { background: rgba(255,255,255,0.05); }

.nav-item.active { color: var(--color-red); }

/* ====== Topbar ====== */
.topbar {
  grid-area: topbar;
  background: var(--bg-page);
  display: flex;
  align-items: center;
  padding: 0 40px;
  gap: 30px;
  border-bottom: 1px solid var(--border-color);
}

.topbar-menu {
  width: 30px;
  height: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
}

.topbar-menu span {
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
}

.topbar-menu span:nth-child(1) { width: 30px; }
.topbar-menu span:nth-child(2) { width: 20px; }
.topbar-menu span:nth-child(3) { width: 30px; }

.topbar-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-primary);
}

.topbar-spacer { flex: 1; }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-notif {
  position: relative;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-red);
}

.notif-badge {
  position: absolute;
  top: -8px;
  right: -12px;
  background: var(--color-red);
  color: var(--text-inverse);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
}

.topbar-user {
  font-size: 0.9rem;
  letter-spacing: 2px;
  font-weight: 600;
  color: var(--text-primary);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 38px;
  height: 38px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-primary);
  transition: all var(--transition);
}

.theme-toggle:hover {
  background: var(--bg-card-alt);
  border-color: var(--border-strong);
}

/* ====== Main + Views ====== */
.main {
  grid-area: main;
  padding: 30px 40px;
  overflow-y: auto;
}

.view-toggle {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  position: sticky;
  top: 70px;
  z-index: 9;
  background: var(--bg-page);
  padding: 16px 0 16px;
  margin-top: -16px;
  border-bottom: 1px solid var(--border-color);
}

.view-toggle button {
  padding: 10px 20px;
  background: var(--bg-card);
  border: none;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  line-height: 1.1;
  transition: all var(--transition);
}

.view-toggle button small {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 1px;
  opacity: 0.7;
}

.view-toggle button.active {
  background: var(--color-red);
  color: var(--text-inverse);
}

.view-toggle button:hover:not(.active) {
  background: var(--bg-card-alt);
}

/* Esconde todas as views; só a ativa aparece */
.principal-view,
.projeto-view,
.feedbacks-view,
.dashboard-view,
.kanban-view { display: none; }

/* Footer */
.footer {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  border-top: 1px solid var(--border-color);
}