/* InsightChat - Layout Styles
   =========================== */

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-sm {
  max-width: 640px;
}

.container-md {
  max-width: 768px;
}

.container-lg {
  max-width: 1024px;
}

/* Page Wrapper */
.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-content {
  flex: 1;
}

/* Header */
.header {
  border-bottom: 1px solid hsl(var(--border));
  background-color: hsl(var(--background));
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-bold);
  font-size: var(--text-xl);
  color: hsl(var(--foreground));
  text-decoration: none;
}

.header-logo svg {
  width: 24px;
  height: 24px;
  color: hsl(var(--primary));
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Footer */
.footer {
  border-top: 1px solid hsl(var(--border));
  background-color: hsl(var(--muted) / 0.3);
  padding: var(--space-12) 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.footer-brand {
  grid-column: span 1;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-semibold);
  color: hsl(var(--foreground));
  margin-bottom: var(--space-2);
}

.footer-logo svg {
  width: 20px;
  height: 20px;
  color: hsl(var(--primary));
}

.footer-tagline {
  font-size: var(--text-sm);
  color: hsl(var(--muted-foreground));
}

.footer-section h4 {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-size: var(--text-sm);
  color: hsl(var(--muted-foreground));
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: hsl(var(--foreground));
}

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  border-top: 1px solid hsl(var(--border));
  text-align: center;
  font-size: var(--text-xs);
  color: hsl(var(--muted-foreground));
}

.footer-copyright {
  font-size: var(--text-sm);
  color: hsl(var(--muted-foreground));
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 480px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-4);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }

@media (max-width: 1024px) {
  .lg\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .md\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
  .sm\:grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
}

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.flex-1 { flex: 1; }

/* Column Span */
.col-span-full {
  grid-column: 1 / -1;
}

/* Section Layouts */
.section {
  padding: var(--space-16) 0;
}

.section-sm {
  padding: var(--space-8) 0;
}

.section-lg {
  padding: var(--space-20) 0;
}

.section-muted {
  background-color: hsl(var(--muted) / 0.5);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  text-align: center;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: hsl(var(--muted-foreground));
  text-align: center;
  margin-bottom: var(--space-12);
}

/* Hero Section */
.hero {
  padding: var(--space-20) 0;
  text-align: center;
  background: linear-gradient(to bottom, hsl(var(--muted) / 0.3), hsl(var(--background)));
}

.hero-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-6);
  background: linear-gradient(to right, hsl(var(--foreground)), hsl(var(--primary)));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: hsl(var(--muted-foreground));
  margin-bottom: var(--space-8);
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: var(--text-5xl);
  }
}

/* Steps Grid */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  max-width: 900px;
  margin: 0 auto;
}

.step {
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin: 0 auto var(--space-4);
}

.step-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}

.step-description {
  font-size: var(--text-sm);
  color: hsl(var(--muted-foreground));
}

@media (max-width: 768px) {
  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
}

.pricing-card {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.pricing-card-highlight {
  border-color: hsl(var(--primary));
  box-shadow: 0 0 0 1px hsl(var(--primary));
}

.pricing-badge {
  position: absolute;
  top: 12px;
  right: -32px;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-size: 0.625rem;
  font-weight: var(--font-semibold);
  padding: 4px 40px;
  transform: rotate(45deg);
  text-transform: uppercase;
}

.pricing-name {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}

.pricing-price {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
}

.pricing-period {
  font-size: var(--text-sm);
  font-weight: var(--font-normal);
  color: hsl(var(--muted-foreground));
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.pricing-card .card-footer {
  margin-top: auto;
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

/* CTA Section */
.cta-section {
  background: linear-gradient(to bottom right, hsl(var(--primary) / 0.1), hsl(var(--muted)));
  padding: var(--space-20) 0;
}

.cta-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-4);
}

.cta-subtitle {
  font-size: var(--text-lg);
  color: hsl(var(--muted-foreground));
  margin-bottom: var(--space-8);
}

/* Feature Card */
.feature-card {
  text-align: center;
}

.feature-icon {
  color: hsl(var(--primary));
  margin-bottom: var(--space-4);
  display: inline-flex;
}

/* Auth Layout */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.auth-card {
  width: 100%;
  max-width: 400px;
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.auth-logo svg {
  color: hsl(var(--primary));
}

.auth-logo-text {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
}

.auth-tabs {
  display: flex;
  margin-bottom: var(--space-6);
}

.auth-tab {
  flex: 1;
  padding: var(--space-3);
  text-align: center;
  font-weight: var(--font-medium);
  color: hsl(var(--muted-foreground));
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: transparent;
  border-top: none;
  border-left: none;
  border-right: none;
}

.auth-tab.active {
  color: hsl(var(--foreground));
  border-bottom-color: hsl(var(--primary));
}

.auth-toggle {
  margin-top: var(--space-6);
}

/* Filter Buttons */
.filter-buttons {
  display: flex;
  gap: var(--space-2);
}

.project-filter-tab.active,
.provider-filter-tab.active {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

/* Search Input */
.search-input-wrapper {
  position: relative;
}

.search-input {
  padding-left: 2.5rem;
  min-width: 200px;
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: hsl(var(--muted-foreground));
  pointer-events: none;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-4);
}

.empty-state-icon {
  color: hsl(var(--muted-foreground));
  margin-bottom: var(--space-4);
}

.empty-state-icon svg {
  display: inline-block;
}

.empty-state-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}

.empty-state-description {
  color: hsl(var(--muted-foreground));
  margin-bottom: var(--space-6);
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  background: hsl(var(--background));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.15s ease;
  z-index: 50;
}

.dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  color: hsl(var(--foreground));
  text-decoration: none;
  font-size: var(--text-sm);
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background: hsl(var(--muted));
}

.dropdown-separator {
  height: 1px;
  background: hsl(var(--border));
  margin: var(--space-1) 0;
}

/* Project Card */
.project-card {
  position: relative;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px hsl(var(--foreground) / 0.1);
}

.project-card .card-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.project-card .toggle-favorite {
  position: relative;
  z-index: 2;
}

.project-title {
  color: hsl(var(--foreground));
  transition: color var(--transition-fast);
  text-decoration: none;
}

.project-card:hover .project-title {
  color: hsl(var(--primary));
}

/* Avatar Stack */
.avatar-stack {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-3);
}

.avatar-group {
  display: flex;
}

.avatar-stacked {
  margin-left: -8px;
  border: 2px solid hsl(var(--background));
  background: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
}

.avatar-stacked:first-child {
  margin-left: 0;
}

.avatar-more {
  margin-left: var(--space-2);
  font-size: var(--text-xs);
  color: hsl(var(--muted-foreground));
}

.no-interviews {
  font-size: var(--text-xs);
  color: hsl(var(--muted-foreground));
}

/* Card Stats */
.card-stats {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: hsl(var(--muted-foreground));
}

.stat-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.stat-separator {
  color: hsl(var(--border));
}

/* Hover Lift */
.hover-lift {
  transition: transform 0.2s, box-shadow 0.2s;
}

.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px hsl(var(--foreground) / 0.1);
}

/* Tabs */
.tabs {
  display: flex;
  flex-direction: column;
}

.tabs-list {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  border-bottom: 1px solid hsl(var(--border));
  padding-bottom: var(--space-1);
}

.tab-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: hsl(var(--muted-foreground));
  background: transparent;
  border: none;
  border-radius: var(--radius) var(--radius) 0 0;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.tab-trigger:hover {
  color: hsl(var(--foreground));
  background: hsl(var(--muted));
}

.tab-trigger.active {
  color: hsl(var(--foreground));
  background: hsl(var(--muted));
  box-shadow: inset 0 -2px 0 hsl(var(--primary));
}

.tab-content {
  margin-top: var(--space-4);
}

/* Sidebar Layout */
.layout-sidebar {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 1024px) {
  .layout-sidebar {
    grid-template-columns: 250px 1fr;
  }
}

.sidebar {
  background-color: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  padding: var(--space-4);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: hsl(var(--muted-foreground));
  border-radius: var(--radius);
  transition: all var(--transition-fast);
}

.sidebar-link:hover,
.sidebar-link.active {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

.sidebar-link svg {
  width: 18px;
  height: 18px;
}

/* Chat Layout */
.chat-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 200px);
  min-height: 400px;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  background-color: hsl(var(--card));
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.chat-input-area {
  border-top: 1px solid hsl(var(--border));
  padding: var(--space-4);
  display: flex;
  gap: var(--space-2);
}

.chat-input-area input {
  flex: 1;
}

.chat-message {
  display: flex;
  gap: var(--space-3);
  max-width: 80%;
}

.chat-message-user {
  margin-left: auto;
  flex-direction: row-reverse;
}

.chat-message-content {
  padding: var(--space-3);
  border-radius: var(--radius);
  background-color: hsl(var(--muted));
}

.chat-message-user .chat-message-content {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

/* Two-Column Layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .two-col {
    grid-template-columns: 1fr 1fr;
  }
}

/* Table Layout */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid hsl(var(--border));
}

.table th {
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  color: hsl(var(--muted-foreground));
  background-color: hsl(var(--muted) / 0.5);
}

.table td {
  font-size: var(--text-sm);
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background-color: hsl(var(--muted) / 0.3);
}