/* KairoZen Control - Core Website Stylesheet */

@import url('./variables.css');
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* Reset & Base System */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

code, pre {
  font-family: var(--font-mono);
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px auto;
}

.section-header.left-aligned {
  text-align: left;
  margin-left: 0;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.pill-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-primary);
}

.pill-badge .dot.green {
  background-color: var(--status-healthy-text);
}

.section-title {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-surface-0);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-1);
  border-color: var(--border-strong);
}

.btn-ghost {
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background-color: var(--bg-surface-subtle);
}

.btn-large {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

/* SaaS App Sidebar Link Styling */
.app-sidebar-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  color: #94A3B8;
  transition: all var(--transition-fast);
}

.app-sidebar-link:hover, .app-sidebar-link.active {
  background: #1E293B;
  color: #FFFFFF;
}

.app-sidebar-link.active {
  border-left: 3px solid var(--accent-primary);
}

.app-sidebar-link .badge {
  font-size: 10px;
  font-weight: 700;
  background: #334155;
  color: #E2E8F0;
  padding: 2px 6px;
  border-radius: var(--radius-full);
}

.app-sidebar-link .badge.alert {
  background: #B91C1C;
  color: white;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(250, 250, 252, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  height: 68px;
  display: flex;
  align-items: center;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-teal));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background-color: var(--bg-surface-subtle);
}

.nav-link svg {
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Dropdown / Mega Menu */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-surface-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  min-width: 680px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 1100;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.nav-item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(4px);
}

.mega-column h4 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.mega-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.mega-item:hover {
  background-color: var(--bg-surface-1);
}

.mega-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: var(--accent-primary-light);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mega-content .mega-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.mega-content .mega-desc {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.4;
  margin-top: 2px;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu-btn {
  display: none;
  font-size: 24px;
  color: var(--text-primary);
}

/* Documentation Styling */
.doc-link {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.doc-link:hover, .doc-link.active {
  background: var(--bg-surface-subtle);
  color: var(--accent-primary);
  font-weight: 600;
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px 0;
  background: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.05) 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 52px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.12;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero-content h1 span {
  color: var(--accent-primary);
}

.hero-subtext {
  font-size: 19px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 13px;
  color: var(--text-tertiary);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Hero Visual / Product Canvas */
.product-frame {
  background: var(--bg-surface-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.window-header {
  background: var(--bg-surface-1);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.dot-red { width: 10px; height: 10px; border-radius: 50%; background: #FF5F56; }
.dot-yellow { width: 10px; height: 10px; border-radius: 50%; background: #FFBD2E; }
.dot-green { width: 10px; height: 10px; border-radius: 50%; background: #27C93F; }

.window-title {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
}

.window-body {
  padding: 24px;
  background-color: #FAFBFD;
}

/* Dashboard Cards & Trace Waterfalls */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.kpi-card {
  background: var(--bg-surface-0);
  border: 1px solid var(--border-subtle);
  padding: 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xs);
}

.kpi-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

.kpi-val {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.kpi-change {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.kpi-change.positive { background: var(--status-healthy-bg); color: var(--status-healthy-text); }
.kpi-change.info { background: var(--status-info-bg); color: var(--status-info-text); }

/* Trace Node Flow */
.trace-panel {
  background: var(--bg-surface-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.trace-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.trace-id {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-primary);
}

.trace-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--status-healthy-bg);
  color: var(--status-healthy-text);
  border: 1px solid var(--status-healthy-border);
}

.trace-nodes {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.trace-node {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.trace-node:hover {
  border-color: var(--border-medium);
  background: var(--bg-surface-0);
  box-shadow: var(--shadow-xs);
}

.node-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.node-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-0);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--accent-primary);
}

.node-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.node-type {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-tertiary);
}

.node-right {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

/* Trust Strip */
.trust-strip {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-0);
  padding: 32px 0;
  text-align: center;
}

.trust-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

.trust-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
}

.trust-tech-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 16px;
  background: var(--bg-surface-1);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

/* Grid Cards System */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.cards-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.card {
  background: var(--bg-surface-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--accent-primary-light);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.card-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

/* Interactive Sandbox Component */
.sandbox-container {
  background: var(--bg-surface-dark);
  color: #F8FAFC;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.sandbox-header {
  background: #1E293B;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #334155;
}

.sandbox-tabs {
  display: flex;
  gap: 8px;
}

.sandbox-tab {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  color: #94A3B8;
  transition: all var(--transition-fast);
}

.sandbox-tab:hover, .sandbox-tab.active {
  background: #334155;
  color: #FFFFFF;
}

.sandbox-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 440px;
}

.sandbox-sidebar {
  border-right: 1px solid #334155;
  padding: 24px;
  background: #0F172A;
}

.sandbox-content {
  padding: 24px;
  background: #020617;
  overflow-x: auto;
}

.code-block {
  background: #0F172A;
  border: 1px solid #334155;
  border-radius: var(--radius-md);
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: #E2E8F0;
  line-height: 1.6;
  overflow-x: auto;
}

.code-keyword { color: #93C5FD; }
.code-string { color: #86EFAC; }
.code-comment { color: #64748B; }
.code-function { color: #FDE047; }

/* Pricing Calculator */
.pricing-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.price-card {
  background: var(--bg-surface-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card.featured {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
}

.price-featured-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-primary);
  color: white;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.price-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.price-desc {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 24px;
  height: 40px;
}

.price-amount {
  font-size: 40px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-period {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-tertiary);
}

.price-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.price-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.price-feature-item svg {
  color: var(--status-healthy-text);
  flex-shrink: 0;
}

/* Footer */
.site-footer {
  background-color: var(--bg-surface-dark);
  color: #94A3B8;
  padding: 80px 0 32px 0;
  margin-top: auto;
  border-top: 1px solid #1E293B;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .brand-logo {
  color: white;
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 14px;
  color: #64748B;
  line-height: 1.6;
  margin-bottom: 24px;
}

.footer-col h4 {
  color: white;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: #94A3B8;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #64748B;
}

.mca-details {
  font-size: 12px;
  font-family: var(--font-mono);
  color: #475569;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .cards-grid-3, .pricing-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr repeat(2, 1fr);
  }
  .sandbox-body {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 768px) {
  .nav-links, .header-actions .btn {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .cards-grid-3, .cards-grid-2, .pricing-matrix {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-content h1 {
    font-size: 36px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}