/**
 * Main CSS File
 * Chetaru Homepage - Base Styles and CSS Variables
 * 
 * This file contains:
 * - CSS Custom Properties (Variables)
 * - Reset/Normalize styles
 * - Base typography
 * - Container and layout utilities
 */

/* ============================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ============================================ */
@font-face {
    font-family: 'Helvetica Now Display';
    src: url('../fonts/HelveticaNowDisplay-Regular.eot');
    src: local('Helvetica Now Display Regular'), local('HelveticaNowDisplay-Regular'),
        url('../fonts/HelveticaNowDisplay-Regular.eot?#iefix') format('embedded-opentype'),
        url('../fonts/HelveticaNowDisplay-Regular.woff2') format('woff2'),
        url('../fonts/HelveticaNowDisplay-Regular.woff') format('woff'),
        url('../fonts/HelveticaNowDisplay-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Helvetica Now Display';
    src: url('../fonts/HelveticaNowDisplay-Medium.eot');
    src: local('Helvetica Now Display Medium'), local('HelveticaNowDisplay-Medium'),
        url('../fonts/HelveticaNowDisplay-Medium.eot?#iefix') format('embedded-opentype'),
        url('../fonts/HelveticaNowDisplay-Medium.woff2') format('woff2'),
        url('../fonts/HelveticaNowDisplay-Medium.woff') format('woff'),
        url('../fonts/HelveticaNowDisplay-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: 'Helvetica Now Display';
    src: url('../fonts/HelveticaNowDisplay-Bold.eot');
    src: local('Helvetica Now Display Bold'), local('HelveticaNowDisplay-Bold'),
        url('../fonts/HelveticaNowDisplay-Bold.eot?#iefix') format('embedded-opentype'),
        url('../fonts/HelveticaNowDisplay-Bold.woff2') format('woff2'),
        url('../fonts/HelveticaNowDisplay-Bold.woff') format('woff'),
        url('../fonts/HelveticaNowDisplay-Bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}


:root {
  /* Color Palette */
  --color-primary: #114870;
  --color-text-dark: #25282b;
  --color-text-medium: #555;
  --color-bg-light: #f1f5f8;
  --color-accent-yellow: #f1cb31;
  --color-white: #ffffff;
  --color-light-yellow: #fffbeb;
  --color-light-green: #f2fff1;
  
  /* Typography */
  --font-family-primary: 'Helvetica Now Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  
  /* Font Sizes */
  --font-size-hero: 4rem; /* 64px */
  --font-size-section-title: 2.875rem; /* 46px */
  --font-size-subtitle: 1.5rem; /* 24px */
  --font-size-card-heading: 1.5rem; /* 24px */
  --font-size-body: 1.125rem; /* 18px */
  --font-size-small: 1rem; /* 16px */
  --font-size-tiny: 0.9375rem; /* 15px */
  
  /* Line Heights */
  --line-height-heading: 1.3;
  --line-height-body: 1.5;
  --line-height-testimonial: 1.6;
  --line-height-button: 1.312;
  
  /* Spacing Scale */
  --spacing-xs: 0.5rem; /* 8px */
  --spacing-sm: 1rem; /* 16px */
  --spacing-md: 1.5rem; /* 24px */
  --spacing-lg: 2rem; /* 32px */
  --spacing-xl: 3rem; /* 48px */
  --spacing-2xl: 4rem; /* 64px */
  --spacing-3xl: 6rem; /* 96px */
  
  /* Layout */
  --container-max-width: 1704px;
  --container-padding: 108px;
  --section-gap: var(--spacing-md);
  
  /* Border Radius */
  --radius-sm: 16px;
  --radius-md: 20px;
  --radius-lg: 24px;
  --radius-pill: 119px;
  
  /* Shadows */
  --shadow-card: 0px 0px 2px rgba(0, 0, 0, 0.25);
  --shadow-project: 0px 0px 25px rgba(0, 0, 0, 0.05);
  
  /* Borders */
  --border-thin: 0.5px;
  --border-medium: 1.5px;
  --border-thick: 3px;
  
  /* Transitions */
  --transition-fast: 200ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Breakpoints (for JavaScript/media queries) */
  --breakpoint-mobile: 768px;
  --breakpoint-tablet: 1704px;
}

/* ============================================
   RESET / NORMALIZE
   ============================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-body);
  color: var(--color-text-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Remove default list styles */
ul,
ol {
  list-style: none;
}

/* Remove default link styles */
a {
  text-decoration: none;
  color: inherit;
}

/* Remove default button styles */
button {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
  color: inherit;
}

/* Image defaults */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Form elements */
input,
textarea,
select {
  font: inherit;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-heading);
  color: var(--color-text-dark);
}

h1 {
  font-size: var(--font-size-hero);
}

h2 {
  font-size: var(--font-size-section-title);
}

h3 {
  font-size: var(--font-size-card-heading);
  font-weight: var(--font-weight-medium);
}

p,li:not(header li):not(footer li) {
  margin-bottom: var(--spacing-sm);
font-weight: 400;
font-size: 16px;
line-height: 24px;

}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Container */
.container {
  max-width: 1745px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* Section Titles */
.section-title {
  font-size: var(--font-size-section-title);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-heading);
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 45px;
  letter-spacing: -1px;
}

.section-subtitle,
.section-subtitle p {
  font-size: var(--font-size-subtitle);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-body);
  color: var(--color-text-dark);
  text-align: center;
  margin-bottom: 45px;
}

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

/* ============================================
   BASE LAYOUT
   ============================================ */


/* Section spacing */
section {
  padding-bottom: 125px;
}

/* ============================================
   FOCUS STYLES (Accessibility)
   ============================================ */

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

/* Remove focus outline for mouse users */
*:focus:not(:focus-visible) {
  outline: none;
}