/* ============================================
   MyGurdInfo - Complete Style System
   ============================================ */

:root {
  --color-primary: #0066cc;
  --color-primary-dark: #0052a3;
  --color-primary-light: #e6f0ff;
  --color-text: #1a1a1a;
  --color-text-secondary: #555555;
  --color-border: #e0e0e0;
  --color-background: #ffffff;
  --color-background-alt: #f9f9f9;
  --color-success: #28a745;
  --color-warning: #ff9800;
  --color-danger: #dc3545;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Menlo", "Monaco", "Courier New", monospace;
  
  --font-size-base: 16px;
  --font-size-small: 14px;
  --font-size-large: 18px;
  --font-size-h1: 2.5rem;
  --font-size-h2: 2rem;
  --font-size-h3: 1.5rem;
  --font-size-h4: 1.25rem;
  
  --line-height-base: 1.6;
  --line-height-heading: 1.2;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
  
  --transition: all 0.3s ease;
  
  --max-width-content: 900px;
  --max-width-container: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: var(--line-height-heading);
  font-weight: 600;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

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

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

h3 {
  font-size: var(--font-size-h3);
}

h4 {
  font-size: var(--font-size-h4);
}

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

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

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

ul, ol {
  margin-bottom: var(--spacing-md);
  padding-left: 2rem;
}

li {
  margin-bottom: var(--spacing-sm);
}

code {
  background-color: var(--color-background-alt);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}

pre {
  background-color: var(--color-background-alt);
  padding: var(--spacing-md);
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-mono);
  line-height: 1.4;
}

blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--spacing-md);
  margin-left: 0;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

/* Header & Navigation */
header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-wrapper {
  max-width: var(--max-width-container);
  margin: 0 auto;
  padding: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary-light);
  border-radius: var(--radius);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
}

nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
  padding: 0;
}

nav a {
  color: var(--color-text);
  font-size: var(--font-size-small);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 4px;
  transition: var(--transition);
}

nav a:hover {
  background-color: var(--color-background-alt);
  text-decoration: none;
}

nav a.active {
  color: var(--color-primary);
  font-weight: 600;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  margin: 4px 0;
  transition: var(--transition);
}

/* Main Container */
main {
  max-width: var(--max-width-container);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container {
  max-width: var(--max-width-content);
  margin: 0 auto;
}

/* Hero Section */
.hero {
  padding: var(--spacing-xxl) var(--spacing-md);
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-background) 100%);
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, var(--font-size-h1));
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: var(--font-size-large);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-lg);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn:hover {
  background-color: var(--color-primary-dark);
  text-decoration: none;
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  text-decoration: none;
}

/* Sections */
section {
  padding: var(--spacing-xxl) var(--spacing-md);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title h2 {
  margin-top: 0;
}

/* Cards */
.card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  transition: var(--transition);
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.article-card {
  display: flex;
  flex-direction: column;
}

.card-category {
  display: inline-block;
  font-size: var(--font-size-small);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
}

.card-title {
  font-size: var(--font-size-h3);
  margin: var(--spacing-sm) 0;
  font-weight: 600;
}

.card-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.reading-time {
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
}

.card-link {
  color: var(--color-primary);
  font-weight: 600;
  display: inline-block;
}

/* Advertisement */
.advertisement {
  background-color: var(--color-background-alt);
  border: 1px dashed var(--color-border);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
}

.ad-sidebar {
  position: sticky;
  top: 100px;
}

@media (max-width: 768px) {
  .ad-sidebar {
    position: static;
  }
}

/* Article Layout */
.article-wrapper {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) auto;
}

.article-content {
  max-width: var(--max-width-content);
}

.article-content h2 {
  margin-top: var(--spacing-xl);
}

.article-content h3 {
  margin-top: var(--spacing-lg);
}

.article-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.article-author::before {
  content: "By ";
}

.article-date::before {
  content: "Published ";
}

.article-reading-time::before {
  content: "Reading time: ";
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  gap: var(--spacing-sm);
  font-size: var(--font-size-small);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb li {
  list-style: none;
  margin: 0;
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: var(--spacing-sm);
}

.breadcrumb a {
  color: var(--color-primary);
}

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

/* Reading Progress */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background-color: var(--color-primary);
  z-index: 200;
}

/* Sidebar */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.sidebar-card {
  background-color: var(--color-background-alt);
  padding: var(--spacing-lg);
  border-radius: var(--radius);
}

.sidebar-card h3 {
  font-size: var(--font-size-h4);
  margin-top: 0;
}

.sidebar-card ul {
  list-style: none;
  padding: 0;
}

.sidebar-card li {
  margin-bottom: var(--spacing-md);
}

.sidebar-card a {
  color: var(--color-primary);
  font-size: var(--font-size-small);
}

/* Checklist */
.checklist {
  background-color: var(--color-background-alt);
  padding: var(--spacing-lg);
  border-radius: var(--radius);
  margin: var(--spacing-lg) 0;
}

.checklist h3 {
  margin-top: 0;
}

.checklist ul {
  list-style: none;
  padding: 0;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  padding-left: 0;
}

.checklist li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: 700;
  flex-shrink: 0;
}

/* FAQ */
.faq {
  margin: var(--spacing-xl) 0;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-weight: 600;
  font-size: var(--font-size-large);
  cursor: pointer;
  user-select: none;
  padding: var(--spacing-sm) 0;
}

.faq-question::before {
  content: "+";
  display: inline-block;
  width: 1.5rem;
  text-align: center;
  margin-right: var(--spacing-sm);
  transition: var(--transition);
}

.faq-question.active::before {
  content: "−";
}

.faq-answer {
  display: none;
  padding-top: var(--spacing-md);
  color: var(--color-text-secondary);
}

.faq-answer.active {
  display: block;
}

/* Footer */
footer {
  background-color: var(--color-background-alt);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl) var(--spacing-md);
  margin-top: var(--spacing-xxl);
}

.footer-wrapper {
  max-width: var(--max-width-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  margin-top: 0;
  font-size: var(--font-size-h4);
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--color-text);
  font-size: var(--font-size-small);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: var(--font-size-small);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
  z-index: 99;
  box-shadow: var(--shadow-md);
}

.back-to-top:hover {
  background-color: var(--color-primary-dark);
}

.back-to-top.show {
  display: flex;
}

/* Contact Form */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-notice {
  background-color: var(--color-background-alt);
  padding: var(--spacing-md);
  border-radius: var(--radius);
  margin: var(--spacing-lg) 0;
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
}

/* Info Box */
.info-box {
  background-color: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  border-radius: var(--radius);
}

.info-box p {
  margin-bottom: 0;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
}

th {
  background-color: var(--color-background-alt);
  font-weight: 600;
  text-align: left;
  padding: var(--spacing-md);
  border-bottom: 2px solid var(--color-border);
}

td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .article-wrapper {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .sidebar-card {
    flex: 1;
    min-width: 200px;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-h1: 2rem;
    --font-size-h2: 1.5rem;
    --font-size-h3: 1.25rem;
  }
  
  .header-wrapper {
    padding: var(--spacing-sm);
  }
  
  .menu-toggle {
    display: block;
  }
  
  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md);
  }
  
  nav.active {
    display: block;
  }
  
  nav ul {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  nav a {
    display: block;
    padding: var(--spacing-md);
  }
  
  .hero {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  section {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .footer-wrapper {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .back-to-top {
    width: 44px;
    height: 44px;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
  }
  
  .article-meta {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .breadcrumb {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-xxl: 2.5rem;
    --spacing-xl: 2rem;
    --font-size-h1: 1.75rem;
    --font-size-h2: 1.25rem;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  nav {
    right: -100%;
    left: auto;
    width: 250px;
    transition: right 0.3s ease;
  }
  
  nav.active {
    right: 0;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    text-align: center;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print Styles */
@media print {
  header, footer, .back-to-top, nav, .sidebar {
    display: none;
  }
  
  body {
    background-color: white;
  }
  
  a {
    color: var(--color-text);
  }
  
  .container {
    max-width: 100%;
  }
}