/* ─────────────────────────────────────────────────────────────────
   LAYOUT CSS - Main grid and structural layout
   ───────────────────────────────────────────────────────────────── */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transition: all 0.2s ease;
}

:root {
  /* Color Palette - Light Theme Reference */
  --color-primary: #6D5DF6;
  --color-primary-light: #9D7CFF;
  --color-primary-dark: #5B4EE8;
  --color-secondary: #A78BFA;
  --color-accent: #F43F5E;
  
  /* Clean Light Neutrals */
  --color-bg: #F4F5F9;           /* App Background — cool neutral */
  --color-bg-secondary: #FFFFFF; /* Cards */
  --color-bg-tertiary: #FFFFFF;  /* Modals */
  --color-bg-hover: #F0F1F5;     /* Hover States */
  --color-bg-dark: #E9EAF0;      /* Input Borders etc */
  
  /* Typography System */
  --color-text: #111827;           /* Titles — near-black */
  --color-text-secondary: #6B7280; /* Body / Labels */
  --color-text-light: #9CA3AF;     /* Captions */
  --color-text-muted: #D1D5DB;     /* Placeholders */
  
  /* Status Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* Premium SaaS Gradients */
  --gradient-primary: linear-gradient(135deg, #6D5DF6 0%, #9D7CFF 100%);
  --gradient-sidebar: linear-gradient(180deg, #7C6AF5 0%, #9D7CFF 55%, #B98AF9 100%);
  --gradient-accent: linear-gradient(135deg, #F59E0B 0%, #EC4899 100%);
  
  /* Floating Depth Shadows — The key to premium feel */
  --shadow-sm:  0 1px 4px rgba(0,0,0,0.05);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.07);
  --shadow-lg:  0 10px 30px rgba(0,0,0,0.08);
  --shadow-xl:  0 20px 40px rgba(0,0,0,0.10);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.05), 0 8px 24px rgba(0,0,0,0.05);
  --shadow-card-hover: 0 6px 16px rgba(0,0,0,0.08), 0 20px 40px rgba(0,0,0,0.08);
  --shadow-glow: 0 0 0 3px rgba(109,93,246,0.15), 0 8px 20px rgba(109,93,246,0.2);
  --shadow-glow-strong: 0 0 0 3px rgba(109,93,246,0.2), 0 12px 28px rgba(109,93,246,0.3);
  
  /* Spacing Rhythm (8px base) */
  --spacing-xs:  0.25rem;  /* 4px */
  --spacing-sm:  0.5rem;   /* 8px */
  --spacing-md:  1rem;     /* 16px */
  --spacing-lg:  1.5rem;   /* 24px */
  --spacing-xl:  2rem;     /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  
  /* Rounding — generous for premium feel */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --radius-xl:  18px;
  --radius-2xl: 24px;
  
  /* Interactive Transitions */
  --transition-fast: 120ms ease-out;
  --transition-base: 220ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 380ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  
  /* Z-index */
  --z-sidebar: 1000;
  --z-topbar: 900;
  --z-modal: 1200;
  --z-tooltip: 1100;
}

html,
body {
  min-height: 100%;
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3 {
  color: #1e293b;
  font-weight: 600;
  letter-spacing: -0.02em;
}

p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
}

/* Layout Grid */
.dashboard-layout,
#app {
  display: grid;
  grid-template-columns: 250px 1fr 320px;
  min-height: 100vh;
  width: 100%;
  background: linear-gradient(135deg, #f5f7ff, #eef1ff);
}

#sidebar,
.sidebar {
  grid-column: 1;
  width: 250px;
}

#sidebar {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

/* ─── Main Content ─── */

.main-content {
  grid-column: 2;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: transparent;
}

/* ─── Right Insights Panel ─── */

.right-panel,
#insights-panel {
  grid-column: 3;
  width: 320px;
  display: flex;
  flex-direction: column;
  background: transparent;
  padding: 16px;
  gap: 0;
}

.right-panel .card,
.right-panel .insight-card,
#insights-panel .card,
#insights-panel .insight-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  border: 1px solid rgba(255,255,255,0.55);
  margin-bottom: 16px;
}

.right-panel .card:last-child,
.right-panel .insight-card:last-child,
#insights-panel .card:last-child,
#insights-panel .insight-card:last-child {
  margin-bottom: 0;
}

/* ─── Views Container ─── */

.views-container {
  flex: 1;
  overflow-x: hidden;
  padding: var(--spacing-xl);
  background: transparent;
}

.view {
  display: none;
  animation: fadeUp var(--transition-slow);
}

.view.active {
  display: block;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.view-header h1 {
  font-size: 1.875rem; /* 30px */
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.025em;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.2;
}

.view-header h1 span {
  font-weight: 400;
  color: var(--color-text-light);
}

.view-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  align-items: center;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 7px 20px;
  background: white;
  border: 1px solid #E5E7EB;
  border-radius: 20px;
  color: var(--color-text-secondary);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition-base);
  font-family: inherit;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.tab-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
  border-color: #D1D5DB;
}

.tab-btn.active {
  background: #EDE9FE;
  color: var(--color-primary);
  border-color: #C4B5FD;
  box-shadow: 0 0 0 3px rgba(109,93,246,0.1);
}

.tab-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
}

.tab-btn.active {
  background: #E8E2FF;
  color: #6D5DF6;
  border-color: #C084FC;
}

.tab-content {
  display: none;
  animation: fadeIn var(--transition-base);
}

.tab-content.active {
  display: block;
}

/* ─── Modals ─── */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  animation: fadeIn var(--transition-base);
}

.modal.active {
  display: flex;
}

.modal-content {
  background: #FFFFFF;
  border-radius: var(--radius-2xl);
  box-shadow: 0 25px 60px rgba(0,0,0,0.15);
  max-width: 520px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalOpen 200ms ease-out forwards;
}

@keyframes modalOpen {
  0% {
    opacity: 0;
    transform: scale(0.95);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}


.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px 20px 28px;
  border-bottom: 1px solid #F0F0F5;
}

.modal-header h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #111827;
  letter-spacing: -0.02em;
}

.modal-close-btn {
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-text-light);
  cursor: pointer;
  transition: color var(--transition-base);
  font-family: inherit;
}

.modal-close-btn:hover {
  color: var(--color-text);
}

.modal-body {
  padding: var(--spacing-xl);
}

/* ─── Loading and Skeleton ─── */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
  border-radius: var(--radius-md);
}

.skeleton.dark {
  background: linear-gradient(90deg, rgba(0,0,0,0.05) 25%, rgba(0,0,0,0.1) 50%, rgba(0,0,0,0.05) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
}

.progress-bar-fill {
  height: 100%; 
  width: 0%; 
  border-radius: 4px;
  background: linear-gradient(90deg, #6D5DF6, #9D7CFF, #6D5DF6);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite linear;
  transition: width 0.3s ease;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

#loadingOverlay,
#toastContainer {
  pointer-events: none;
}
/* If individual toasts need pointer events: */
.toast {
  pointer-events: auto;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #9ca3af;
}

/* Responsive */
@media (max-width: 1024px) {
  :root {
    --spacing-xl: 1.5rem;
  }

  body,
  html {
    overflow-x: hidden;
    height: auto;
    min-height: 100%;
  }

  .dashboard-layout,
  #app {
    grid-template-columns: 1fr;
  }

  .main-content,
  #main-content {
    grid-column: 1;
    width: 100%;
    height: auto !important;
  }

  .views-container {
    padding: 16px;
    width: 100%;
    display: block;
  }

  .view-header h1 {
    font-size: 1.5rem;
  }

  .modal-content {
    max-width: 100%;
    width: 95%;
    border-radius: var(--radius-lg);
  }

  .right-panel,
  #insights-panel {
    display: none;
  }
}

/* Mobile Topbar utilities */
.desktop-only {
  display: inherit;
}

.mobile-only-btn {
  display: none !important;
}

@media (max-width: 1024px) {
  .desktop-only {
    display: none !important;
  }

  .mobile-only-btn {
    display: block !important;
  }
}