/* ═══════════════════════════════════════════════════════════════
   Layout Styles
   ═══════════════════════════════════════════════════════════════ */

/* ═══ Ambient Background ═══ */
.ambient-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  animation: float 20s ease-in-out infinite;
}

.blob-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-primary-500) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  animation-delay: 0s;
}

.blob-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--color-accent-500) 0%, transparent 70%);
  bottom: -150px;
  left: -150px;
  animation-delay: 5s;
}

.blob-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-info-500) 0%, transparent 70%);
  top: 40%;
  left: 30%;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(20px, 30px) scale(1.02); }
}

[data-theme="dark"] .blob {
  opacity: 0.08;
}

/* ═══ Main Container ═══ */
.app-container {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ═══ Topbar ═══ */
.topbar {
  position: sticky;
  top: 0;
  height: var(--topbar-height);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  gap: var(--space-6);
}

.topbar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
}

.topbar-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-xl);
}

.topbar-spacer {
  flex: 1;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--surface-default);
  transition: background var(--transition-fast);
  cursor: pointer;
}

.topbar-user:hover {
  background: var(--surface-elevated);
}

.topbar-user-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.topbar-user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.topbar-user-role {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

/* ═══ Layout with Sidebar ═══ */
.layout-with-sidebar {
  display: flex;
  min-height: calc(100vh - var(--topbar-height));
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-left: 1px solid var(--glass-border);
  padding: var(--space-6);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.sidebar-nav-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.sidebar-nav-item.active {
  background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);
  color: var(--text-inverse);
}

.sidebar-nav-icon {
  font-size: var(--font-size-lg);
  width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ═══ Main Content ═══ */
.main-content {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.content-header {
  margin-bottom: var(--space-8);
}

.content-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  letter-spacing: -0.02em;
}

.content-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
}

/* ═══ Grid Layouts ═══ */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

/* ═══ Stats Card ═══ */
.stat-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: all var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

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

.stat-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
}

.stat-card-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--text-primary);
  line-height: var(--line-height-tight);
}

.stat-card-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ═══ Responsive ═══ */
@media (max-width: 768px) {
  .topbar {
    padding: 0 var(--space-4);
  }

  .sidebar {
    position: fixed;
    top: var(--topbar-height);
    right: 0;
    bottom: 0;
    transform: translateX(100%);
    z-index: var(--z-overlay);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    padding: var(--space-6) var(--space-4);
  }

  .content-title {
    font-size: var(--font-size-2xl);
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}