/**
 * Main Stylesheet
 * 
 * This is the primary stylesheet for the Yogesh Wadadekar website.
 * It imports the design system variables and components, then provides
 * base styles and page-specific customizations.
 * 
 * Structure:
 * 1. Import design system files
 * 2. Base/Reset styles
 * 3. Typography
 * 4. Layout
 * 5. Page-specific styles
 */

/* ===========================
 * Google Fonts
 * =========================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Sans+Pro:wght@400;600&family=Merriweather:wght@400;700&display=swap');

/* ===========================
 * Base Styles
 * =========================== */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  padding-top: 0;
  margin: 0;
  min-height: 100vh;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Page with fixed navbar */
body.has-navbar {
  padding-top: var(--navbar-height);
}

/* ===========================
 * Typography
 * =========================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
  margin-top: 0;
  margin-bottom: var(--spacing-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-top: 0;
  margin-bottom: var(--spacing-4);
}

.lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

/* ===========================
 * Links
 * =========================== */

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

a:hover,
a:focus {
  color: var(--color-link-hover);
  text-decoration: underline;
}

a:visited {
  color: var(--color-link-visited);
}

/* Reset visited for navigation and buttons */
.nav-link:visited,
.btn:visited,
.navbar-brand:visited {
  color: inherit;
}

/* ===========================
 * Images
 * =========================== */

img {
  max-width: 100%;
  height: auto;
}

.img-fluid {
  max-width: 100%;
  height: auto;
}

/* Profile Image Styles */
.profile-image {
  border-radius: var(--radius-full);
  margin: var(--spacing-4);
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--color-bg-primary);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.profile-image:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-xl);
}

/* ===========================
 * Section Styles
 * =========================== */

section {
  margin-bottom: var(--spacing-12);
}

.section-heading {
  color: var(--color-primary);
  margin: var(--spacing-8) 0 var(--spacing-6) 0;
  padding-bottom: var(--spacing-3);
  border-bottom: 2px solid var(--color-border);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-semibold);
}

/* ===========================
 * Contact Info Box
 * =========================== */

.contact-info {
  background: var(--color-bg-secondary);
  padding: var(--spacing-6);
  border-radius: var(--radius-xl);
  margin: var(--spacing-6) 0;
  border: 1px solid var(--color-border);
}

/* ===========================
 * Footer
 * =========================== */

.footer {
  margin-top: var(--spacing-12);
  padding: var(--spacing-8) 0;
  background-color: var(--color-secondary-dark);
  color: var(--color-text-inverse);
  text-align: center;
}

.footer a {
  color: var(--color-text-inverse);
  opacity: 0.9;
}

.footer a:hover {
  opacity: 1;
  color: var(--color-accent-light);
}

.footer address {
  font-style: normal;
  margin-bottom: var(--spacing-2);
}

/* ===========================
 * Main Title / Hero
 * =========================== */

.main-title {
  margin-bottom: var(--spacing-8);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

/* ===========================
 * Lists
 * =========================== */

.interests-list {
  margin: var(--spacing-6) 0;
}

.interests-list .list-group-item {
  background-color: var(--color-bg-primary);
  border-color: var(--color-border);
  padding: var(--spacing-4) var(--spacing-5);
  transition: all var(--transition-fast);
}

.interests-list .list-group-item:hover {
  background-color: var(--color-bg-secondary);
}

/* ===========================
 * Cards Override
 * =========================== */

.card {
  background-color: var(--color-bg-primary);
  border-color: var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-body {
  padding: var(--spacing-6);
}

/* ===========================
 * Container Adjustments
 * =========================== */

.container {
  max-width: var(--container-max-width);
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ===========================
 * Utility Classes
 * =========================== */

.text-primary-custom { color: var(--color-primary) !important; }
.text-secondary-custom { color: var(--color-text-secondary) !important; }
.text-muted-custom { color: var(--color-text-muted) !important; }

.bg-primary-custom { background-color: var(--color-primary) !important; }
.bg-secondary-custom { background-color: var(--color-bg-secondary) !important; }

.border-primary-custom { border-color: var(--color-primary) !important; }

/* Spacing utilities */
.section-padding { padding: var(--spacing-12) 0; }
.section-margin { margin: var(--spacing-12) 0; }

/* ===========================
 * Selection Styling
 * =========================== */

::selection {
  background-color: var(--color-primary);
  color: white;
}

::-moz-selection {
  background-color: var(--color-primary);
  color: white;
}

/* ===========================
 * Focus Styles (Accessibility)
 * =========================== */

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

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

/* ===========================
 * Scrollbar Styling
 * =========================== */

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-text-muted);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}

/* ===========================
 * Print Styles
 * =========================== */

@media print {
  body {
    background: white;
    color: black;
  }
  
  .navbar,
  .back-to-top,
  .theme-toggle {
    display: none !important;
  }
  
  a {
    color: black;
    text-decoration: underline;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}

/* ===========================
 * Responsive Adjustments
 * =========================== */

@media (max-width: 768px) {
  h1 { font-size: var(--font-size-3xl); }
  h2 { font-size: var(--font-size-2xl); }
  h3 { font-size: var(--font-size-xl); }
  
  .main-title {
    font-size: var(--font-size-3xl);
  }
  
  section {
    margin-bottom: var(--spacing-8);
  }
  
  .contact-info {
    padding: var(--spacing-4);
  }
}

@media (max-width: 576px) {
  .container {
    padding-left: var(--spacing-3);
    padding-right: var(--spacing-3);
  }
  
  h1 { font-size: var(--font-size-2xl); }
  h2 { font-size: var(--font-size-xl); }
  
  .profile-image {
    margin: var(--spacing-2);
  }
}