/*--------------------------------------------------------------
# Global Styles
--------------------------------------------------------------*/

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

/* CSS Variables
-------------------------------------------------------------- */
:root {
  /* Colors */
  --color-primary: #6d28d9;
  --color-primary-dark: #5b21b6;
  --color-primary-light: #8b5cf6;
  --color-secondary: #f8f8f8;
  --color-secondary-dark: #e8e8e8;
  --color-secondary-light: #ffffff;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray: #e5e7eb;
  --color-gray-dark: #6b7280;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-text-lighter: #9ca3af;
  --color-border: #e5e7eb;
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  --color-info: #3b82f6;
  
  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --line-height-body: 1.6;
  --line-height-heading: 1.25;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 5rem;
  
  /* Border Radius */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 0.75rem;
  --border-radius-pill: 9999px;
  
  /* Box Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index */
  --z-behind: -1;
  --z-normal: 1;
  --z-float: 10;
  --z-overlay: 50;
  --z-modal: 100;
  --z-max: 999;
  
  /* Container */
  --container-width: 1200px;
  --container-narrow-width: 900px;
}

/* Base HTML Elements
-------------------------------------------------------------- */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  line-height: 1.6;
  background-color: var(--color-white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

h1 {
  font-size: 3rem;
  font-weight: 800;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 2rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-primary);
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

button, .btn {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-weight: 600;
}

ul, ol {
  list-style-position: inside;
  margin-bottom: var(--spacing-md);
}

/* Utility Classes
-------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: var(--container-narrow-width);
}

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

.text-primary {
  color: var(--color-primary);
}

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

.text-white {
  color: var(--color-white);
}

.bg-primary {
  background-color: var(--color-primary);
}

.bg-secondary {
  background-color: var(--color-secondary);
}

.bg-white {
  background-color: var(--color-white);
}

.bg-light {
  background-color: var(--color-gray);
}

.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-xs); }
.m-2 { margin: var(--spacing-sm); }
.m-3 { margin: var(--spacing-md); }
.m-4 { margin: var(--spacing-lg); }
.m-5 { margin: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }
.pt-5 { padding-top: var(--spacing-xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-3 { padding-bottom: var(--spacing-md); }
.pb-4 { padding-bottom: var(--spacing-lg); }
.pb-5 { padding-bottom: var(--spacing-xl); }

.d-flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.flex-row {
  flex-direction: row;
}

.justify-content-center {
  justify-content: center;
}

.justify-content-between {
  justify-content: space-between;
}

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

.hidden {
  display: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Responsive Breakpoints
-------------------------------------------------------------- */
@media (max-width: 767px) { /* Mobile */
  html {
    font-size: 14px;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  h3 {
    font-size: 1.75rem;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
}

@media (min-width: 768px) and (max-width: 1023px) { /* Tablet */
  html {
    font-size: 15px;
  }
}

@media (min-width: 1024px) and (max-width: 1439px) { /* Desktop */
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1440px) { /* Large Desktop */
  html {
    font-size: 18px;
  }
}