*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

/* Sidebar PC */
.sidebar {
  width: 245px;
  flex-shrink: 0;
  background: var(--bg-sidebar);
  color: var(--text-sidebar);
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 8px;
}

.brand-badge {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: #02241a;
  color: #fff;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 5px;
  flex-shrink: 0;
}

.brand-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-mobile-logo {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  padding: 4px;
}

.brand-title {
  display: block;
  font-size: 1rem;
}

.brand-sub {
  display: block;
  font-size: 0.78rem;
  color: var(--text-sidebar-muted);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sidebar .nav-btn {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text-sidebar-muted);
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.94rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s;
}

.sidebar .nav-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.sidebar .nav-btn.is-active {
  background: rgba(59, 130, 246, 0.2);
  color: #fff;
  font-weight: 600;
}

.sidebar-footer {
  margin-top: auto;
  padding: 8px;
}

.phase-pill {
  display: inline-block;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-sidebar-muted);
}

/* Contenido principal */
.main-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 20;
}

.view-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.month-control {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 600;
}

.month-control input {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-family: inherit;
  font-size: 0.88rem;
  background: var(--bg-app);
  color: var(--text-main);
}

.guide-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--info-bg);
  color: #075985;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.guide-toggle input {
  accent-color: var(--info);
  cursor: pointer;
}

.view-container {
  padding: 22px 24px 40px;
  max-width: 1220px;
  width: 100%;
  margin: 0 auto;
}

/* Navegación móvil oculta en PC */
.mobile-nav {
  display: none;
}

@media (max-width: 820px) {
  .sidebar {
    display: none;
  }

  .topbar-mobile-logo {
    display: grid;
  }

  .topbar {
    padding: 12px 16px;
  }

  .view-container {
    padding: 16px 14px 92px;
  }

  .mobile-nav {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
    z-index: 30;
  }

  .mobile-nav .nav-btn {
    border: none;
    background: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    font-size: 0.72rem;
    color: var(--text-muted);
    padding: 6px 2px;
    cursor: pointer;
  }

  .mobile-nav .nav-btn .nav-icon {
    font-size: 1.15rem;
  }

  .mobile-nav .nav-btn.is-active {
    color: var(--accent);
    font-weight: 700;
  }
}