/* Base Layout & Core Navigation Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 400;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

.app-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Sticky Top Navigation Bar */
.header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--border);
  z-index: 50;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner {
  max-width: 1320px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  width: 100%;
}

.gap-16 {
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 2px 10px var(--accent-glow);
}

.brand span {
  color: var(--accent);
}

/* Desktop Top Navigation */
.top-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.top-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.top-nav-link:hover {
  color: var(--text-main);
  background: var(--bg-hover);
}

.top-nav-link.active {
  color: var(--accent);
  background: var(--accent-bg);
  border-color: rgba(16, 185, 129, 0.3);
  font-weight: 600;
}

.nav-chip {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  color: var(--text-main);
  border-color: var(--accent);
  background: var(--bg-hover);
}

.icon-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.mobile-menu-toggle {
  display: none;
}

/* Slide-Over Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 60;
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
  padding: 20px 16px;
  box-shadow: var(--modal-shadow);
}

.mobile-drawer.open {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.nav-item:hover {
  color: var(--text-main);
  background: var(--bg-hover);
  border-color: var(--border);
}

.nav-item.active {
  color: var(--accent);
  background: var(--accent-bg);
  border-color: rgba(16, 185, 129, 0.3);
  font-weight: 600;
}

.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-dim);
}

/* Full-Width Workspace */
.main-content {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 32px 20px;
  flex: 1;
  min-width: 0;
}

.suite-header {
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
}

.suite-title-group h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 12px;
}

.suite-title-group p {
  color: var(--text-muted);
  font-size: 13.5px;
  margin-top: 4px;
}

.badges-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.badge {
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-muted);
}

.badge-accent {
  color: var(--accent);
  border-color: rgba(16, 185, 129, 0.3);
}

/* Global Footer */
.app-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 32px 20px;
  margin-top: auto;
}

.app-footer-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.app-footer-brand {
  max-width: 480px;
}

.app-footer-meta {
  text-align: right;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .top-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
}

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .app-footer-meta {
    text-align: left;
  }
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 55;
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.sidebar-backdrop.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 768px) {
  .main-content {
    padding: 20px 14px;
  }
}