/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin-right: auto;
  margin-left: auto;
  padding-right: 1.5rem;
  padding-left: 1.5rem;
}

/* Header */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-navy-midnight);
  letter-spacing: -0.02em;
}

.brand-mark {
  background: var(--color-blue-primary);
  color: var(--color-white);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  font-weight: 800;
}

/* Header Search */
.header-search {
  flex: 1;
  max-width: 600px;
  display: flex;
}

.header-search .form-control {
  border-right: none;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.header-search .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.action-item {
  display: flex;
  flex-direction: column;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  color: var(--color-text-main);
}

.action-item small {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.action-item strong {
  font-size: 0.875rem;
  font-weight: 600;
}

/* Sub Navigation */
.main-nav {
  background: var(--color-navy-midnight);
  color: var(--color-white);
}

.main-nav .container {
  display: flex;
  align-items: center;
  gap: 2rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-link {
  color: var(--color-border);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.75rem 0;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-white);
}

/* Footer */
.site-footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-col h4 {
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.footer-col a:hover {
  color: var(--color-blue-primary);
}

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.75rem;
}

.responsive-grid {
  grid-template-columns: 1fr 1fr;
}

/* Mobile Responsiveness - App Like UI */
@media (max-width: 768px) {
  /* General Container & Spacing */
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  /* Header Fixes */
  .header-top {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 0;
  }
  .brand { margin-bottom: 0.25rem; font-size: 1.5rem; }
  .header-search { width: 100%; margin-bottom: 0.5rem; }
  .header-actions {
    width: 100%;
    justify-content: space-around;
    border-top: 1px solid var(--color-bg-light);
    padding-top: 0.75rem;
  }

  /* Panel Headers (Dashboard) */
  .im-panel-header .container {
    flex-direction: column;
    gap: 0.5rem;
  }
  .im-panel-header .container > div {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  /* Dashboard Sidebar -> Horizontal scrollable menu on mobile */
  .im-panel-layout {
    grid-template-columns: 1fr !important;
    padding: 0.5rem !important;
    gap: 1rem;
  }
  .im-sidebar {
    position: static !important;
    margin-bottom: 0.5rem;
    border-radius: var(--radius-sm);
  }
  .im-menu {
    display: flex;
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    border-top: 1px solid var(--color-border);
  }
  .im-menu a {
    border-left: none !important;
    border-bottom: 3px solid transparent;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
  }
  .im-menu a.active {
    border-bottom-color: var(--color-blue-primary);
    background: none;
  }
  .im-sidebar > div:first-child { display: none; } /* Hide the big profile avatar on mobile to save space */
  .im-sidebar > div:last-child { display: none; } /* Hide upgrade banner in sidebar on mobile */

  /* Grids and Cards */
  .responsive-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }
  .im-stat-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.5rem !important;
  }
  .im-stat-box { padding: 0.5rem; }
  .im-stat-box h2 { font-size: 1.25rem; }
  
  .lead-item {
    flex-direction: column;
    gap: 1rem;
  }
  .lead-item > div:last-child {
    text-align: left !important;
  }
  
  .crm-details-header {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 0.75rem;
  }
  .crm-chat-area > div { max-width: 100% !important; }
  
  .pricing-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  
  /* Buttons */
  .btn { width: 100%; text-align: center; justify-content: center; }
  .im-panel-header .btn,
  .header-search .btn,
  .site-header .btn,
  .action-item,
  .btn-auto { width: auto !important; } /* Don't stretch header/search buttons */
  
  /* Mobile Layout Sidebar fix */
  .layout-sidebar {
    grid-template-columns: 1fr !important;
    gap: 1.25rem !important;
    margin-top: 1rem !important;
  }
}