/*
   ============================================
   HostBento Indigo & White Theme
   Aesthetic: Clean Modern Professional
   Palette: Indigo + White + Subtle Gray
   Font: Inter
   ============================================
*/

/* --------------------------------------------
   Google Font Import
   -------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100;200;300;400;500;600;700;800;900&display=swap');

/* --------------------------------------------
   CSS Custom Properties
   -------------------------------------------- */
:root {
  /* Indigo Palette */
  --color-primary-50: #eef2ff;
  --color-primary-100: #e0e7ff;
  --color-primary-200: #c7d2fe;
  --color-primary-300: #a5b4fc;
  --color-primary-400: #818cf8;
  --color-primary-500: #6366f1;
  --color-primary-600: #4f46e5;
  --color-primary-700: #4338ca;
  --color-primary-800: #3730a3;
  --color-primary-900: #312e81;
  
  /* Gray Palette */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  /* Text Colors */
  --color-text-primary: #111827;
  --color-text-secondary: #4b5563;
  --color-text-subtle: #6b7280;
  --color-text-inverted: #ffffff;
  
  /* Background Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-subtle: #f3f4f6;
  --color-bg-inverted: #111827;
  
  /* Border Colors */
  --color-border: #e5e7eb;
  --color-border-subtle: #d1d5db;
  --color-border-inverted: #374151;
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', monospace;
  
  /* Spacing */
  --space-unit: 0.5rem;
  --space-xs: calc(1 * var(--space-unit));
  --space-sm: calc(2 * var(--space-unit));
  --space-md: calc(3 * var(--space-unit));
  --space-lg: calc(4 * var(--space-unit));
  --space-xl: calc(6 * var(--space-unit));
  --space-2xl: calc(8 * var(--space-unit));
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------
   Base Light Theme
   -------------------------------------------- */
body {
  font-family: var(--font-sans);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------
   Typography
   -------------------------------------------- */
.heading-display {
  font-family: var(--font-sans);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
}

.heading-xl {
  font-family: var(--font-sans);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.heading-lg {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.heading-md {
  font-family: var(--font-sans);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
}

.heading-sm {
  font-family: var(--font-sans);
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
}

.text-body-lg {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.text-body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
}

.text-body-sm {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-text-subtle);
}

.text-subtle {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text-subtle);
}

.text-mono {
  font-family: var(--font-mono);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-700) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-subtle {
  background: linear-gradient(135deg, var(--color-primary-200) 0%, var(--color-primary-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --------------------------------------------
   Buttons
   -------------------------------------------- */
.btn {
  font-family: var(--font-sans);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-primary-600);
  color: white;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
}

.btn-primary:hover {
  background: var(--color-primary-700);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
  background: white;
  color: var(--color-primary-600);
  border: 1px solid var(--color-primary-200);
}

.btn-secondary:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-300);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary-600);
  padding: 0.75rem 1rem;
}

.btn-ghost:hover {
  background: var(--color-primary-50);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------
   Cards
   -------------------------------------------- */
.card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

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

.card-bordered {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-base);
}

.card-bordered:hover {
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-sm);
}

/* --------------------------------------------
   Badges
   -------------------------------------------- */
.badge {
  font-family: var(--font-sans);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  letter-spacing: 0.01em;
}

.badge-primary {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  border: 1px solid var(--color-primary-200);
}

.badge-outline {
  background: transparent;
  color: var(--color-primary-600);
  border: 1px solid var(--color-primary-200);
}

/* --------------------------------------------
   Dividers
   -------------------------------------------- */
.divider {
  height: 1px;
  background: var(--color-border);
  border: none;
}

/* --------------------------------------------
   Container
   -------------------------------------------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-sm {
  max-width: 720px;
}

.container-lg {
  max-width: 1400px;
}

@media (min-width: 768px) {
  .container {
    padding: 0 2rem;
  }
}

/* --------------------------------------------
   Sections
   -------------------------------------------- */
.section {
  padding: clamp(4rem, 10vw, 8rem) 0;
  position: relative;
}

/* --------------------------------------------
   Animations
   -------------------------------------------- */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-fade-in-up {
  animation: fade-in-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

.animate-fade-in {
  animation: fade-in 0.6s ease forwards;
  opacity: 0;
}

.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }
.delay-600 { animation-delay: 600ms; }

/* --------------------------------------------
   Interactive Elements
   -------------------------------------------- */
.link {
  color: var(--color-primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.link:hover {
  color: var(--color-primary-700);
}

.link-underline {
  position: relative;
}

.link-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.link-underline:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* --------------------------------------------
   Code Elements
   -------------------------------------------- */
.code-block {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-primary);
  overflow-x: auto;
}

.code-inline {
  background: var(--color-primary-50);
  border-radius: var(--radius-sm);
  padding: 0.125rem 0.375rem;
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--color-primary-700);
}

/* --------------------------------------------
   Utility Classes
   -------------------------------------------- */
.text-balance {
  text-wrap: balance;
}

.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------
   Header & Navigation
   -------------------------------------------- */
.header {
  background: white;
  border-bottom: 1px solid var(--color-border);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary-600);
}

/* --------------------------------------------
   Footer
   -------------------------------------------- */
.footer {
  background: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------
   Responsive Design
   -------------------------------------------- */
@media (max-width: 767px) {
  .mobile-menu {
    background: white;
    position: fixed;
    inset: 0;
    z-index: 40;
    overflow-y: auto;
  }
}

/* --------------------------------------------
   Focus States
   -------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* --------------------------------------------
   Selection
   -------------------------------------------- */
::selection {
  background: var(--color-primary-200);
  color: var(--color-text-inverted);
}

/* --------------------------------------------
   Scrollbar
   -------------------------------------------- */
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}