/* ==========================================================================
   Elvio Labs - Enterprise SaaS, Cloud & AI Infrastructure
   Domain: Elviolabs.com
   Theme: Strict Premium Light Theme (No Dark Mode)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* Brand Core Colors (Deep Indigo, Royal Blue, Cyber Cyan) */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-subtle: #eff6ff;
  --primary-glow: rgba(37, 99, 235, 0.16);

  --indigo: #4f46e5;
  --indigo-hover: #4338ca;
  --indigo-subtle: #eef2ff;

  --cyan: #0891b2;
  --cyan-subtle: #ecfeff;

  --emerald: #059669;
  --emerald-subtle: #ecfdf5;
  --emerald-border: #a7f3d0;

  --amber: #d97706;
  --amber-subtle: #fffbeb;

  /* Surfaces & Backgrounds - STRICT LIGHT THEME */
  --bg-body: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-surface: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #fafafa;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --bg-glass-card: rgba(255, 255, 255, 0.92);

  /* Borders */
  --border-light: #f1f5f9;
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: #93c5fd;

  /* Text & Typography */
  --text-main: #0f172a;       /* Deep Slate Charcoal */
  --text-muted: #475569;      /* Muted Slate */
  --text-light: #64748b;      /* Subtle Slate */
  --text-inverse: #ffffff;

  /* Elevation & Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 4px -1px rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.07), 0 2px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, 0.09), 0 4px 10px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 40px -8px rgba(15, 23, 42, 0.11), 0 8px 16px -4px rgba(15, 23, 42, 0.05);
  --shadow-glow: 0 10px 30px -5px rgba(79, 70, 229, 0.20);

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Transitions */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.025em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

@media (min-width: 768px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* Typography Gradient */
.gradient-text {
  background: linear-gradient(135deg, #1e293b 0%, #2563eb 50%, #4f46e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-accent {
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Background Grid & Radials */
.bg-grid {
  background-size: 36px 36px;
  background-image: 
    linear-gradient(to right, rgba(226, 232, 240, 0.45) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(226, 232, 240, 0.45) 1px, transparent 1px);
}

.bg-dot-pattern {
  background-image: radial-gradient(rgba(148, 163, 184, 0.3) 1.2px, transparent 1.2px);
  background-size: 24px 24px;
}

.bg-radial-hero {
  background: radial-gradient(circle at 50% 0%, #eff6ff 0%, #f8fafc 60%, #ffffff 100%);
}

.bg-radial-glow {
  background: radial-gradient(circle at top center, rgba(79, 70, 229, 0.08) 0%, rgba(37, 99, 235, 0.03) 45%, transparent 70%);
}

/* Glassmorphism Components */
.glass-nav {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.85);
}

.glass-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.glass-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  font-size: 0.9375rem;
  line-height: 1.25;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px -2px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #4338ca 100%);
  box-shadow: 0 6px 20px -2px rgba(37, 99, 235, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: var(--border-medium);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.btn-subtle {
  background: var(--primary-subtle);
  color: var(--primary);
  border: 1px solid #bfdbfe;
}

.btn-subtle:hover {
  background: #dbeafe;
  border-color: #93c5fd;
}

.btn-white {
  background: #ffffff;
  color: #0f172a;
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}

/* Badges & Status Indicators */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
}

.badge-blue {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.badge-indigo {
  background: #eef2ff;
  color: #4338ca;
  border: 1px solid #c7d2fe;
}

.badge-emerald {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
}

.status-dot.emerald {
  background-color: #10b981;
}

.status-dot.emerald::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background-color: rgba(16, 185, 129, 0.4);
  animation: pulse-ring 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse-ring {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(0.9); opacity: 0; }
}

/* Interactive Playground Widget */
.playground-window {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(226, 232, 240, 0.6);
  overflow: hidden;
}

.window-header {
  background: #f8fafc;
  border-bottom: 1px solid #e2e8f0;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.window-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.window-dot.red { background: #fca5a5; }
.window-dot.yellow { background: #fde047; }
.window-dot.green { background: #86efac; }

/* Interactive Code Snippets */
.code-container {
  background: #0f172a;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #1e293b;
  position: relative;
}

.code-header {
  background: #1e293b;
  padding: 0.625rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #334155;
}

.code-content {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  color: #e2e8f0;
  overflow-x: auto;
}

.code-content .keyword { color: #f472b6; }
.code-content .string { color: #34d399; }
.code-content .function { color: #60a5fa; }
.code-content .comment { color: #94a3b8; font-style: italic; }
.code-content .number { color: #fb923c; }

/* Light Code Container for strict light pages */
.code-container-light {
  background: #f8fafc;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  position: relative;
}

.code-header-light {
  background: #f1f5f9;
  padding: 0.625rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #e2e8f0;
}

.code-content-light {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  color: #1e293b;
  overflow-x: auto;
}

.code-content-light .keyword { color: #9333ea; font-weight: 600; }
.code-content-light .string { color: #059669; }
.code-content-light .function { color: #2563eb; font-weight: 600; }
.code-content-light .comment { color: #94a3b8; font-style: italic; }
.code-content-light .number { color: #ea580c; }

/* Custom Sliders for Calculator */
input[type="range"].custom-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  background: #e2e8f0;
  border-radius: 9999px;
  outline: none;
  transition: var(--transition);
}

input[type="range"].custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #2563eb;
  cursor: pointer;
  border: 3px solid #ffffff;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.4);
  transition: transform 0.15s ease;
}

input[type="range"].custom-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: #1d4ed8;
}

/* Feature Cards & Bento Grids */
.bento-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.bento-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 16px 36px -4px rgba(15, 23, 42, 0.08);
  transform: translateY(-3px);
}

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #4f46e5, #06b6d4);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.bento-card:hover::before {
  opacity: 1;
}

.icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.icon-box.blue { background: #eff6ff; color: #2563eb; }
.icon-box.indigo { background: #eef2ff; color: #4f46e5; }
.icon-box.cyan { background: #ecfeff; color: #0891b2; }
.icon-box.emerald { background: #ecfdf5; color: #059669; }
.icon-box.amber { background: #fffbeb; color: #d97706; }
.icon-box.violet { background: #f5f3ff; color: #7c3aed; }

/* Pricing Cards */
.pricing-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border: 2px solid #2563eb;
  box-shadow: 0 20px 40px -10px rgba(37, 99, 235, 0.18);
  position: relative;
}

.pricing-badge-popular {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #2563eb, #4f46e5);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

/* Accordion */
.accordion-item {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #ffffff;
  overflow: hidden;
  transition: var(--transition);
  margin-bottom: 0.75rem;
}

.accordion-item:hover {
  border-color: #cbd5e1;
}

.accordion-header {
  padding: 1.25rem 1.5rem;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-main);
  transition: color 0.2s;
}

.accordion-header:hover {
  color: var(--primary);
}

.accordion-icon {
  font-size: 0.9rem;
  color: #64748b;
  transition: transform 0.25s ease;
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 1.5rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.accordion-item.active .accordion-content {
  max-height: 400px;
  padding-bottom: 1.25rem;
  transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 45;
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: #ffffff;
  border-radius: 20px;
  width: 100%;
  max-width: 580px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.2);
  transform: scale(0.94);
  transition: transform 0.25s ease;
  overflow: hidden;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-overlay.open .modal-box {
  transform: scale(1);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.15);
  padding: 0.875rem 1.25rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
  pointer-events: auto;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.25s ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Form Styles */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  background-color: #ffffff;
  color: #0f172a;
  font-size: 0.9375rem;
  transition: var(--transition);
  font-family: inherit;
}

.form-input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #334155;
  margin-bottom: 0.375rem;
}

/* Tables */
.premium-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.premium-table th {
  background: #f8fafc;
  padding: 1rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #475569;
  border-bottom: 1px solid #e2e8f0;
}

.premium-table td {
  padding: 1.125rem 1.25rem;
  border-bottom: 1px solid #f1f5f9;
  font-size: 0.9375rem;
  color: #334155;
}

.premium-table tr:hover td {
  background: #f8fafc;
}

/* Footer link styling */
.footer-link {
  color: #64748b;
  font-size: 0.9375rem;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: #2563eb;
  padding-left: 2px;
}