/* Induction Stove Website - Main Stylesheet */

:root {
  --primary-color: #e63946;
  --primary-dark: #c1121f;
  --secondary-color: #1d3557;
  --accent-color: #457b9d;
  --light-bg: #f8f9fa;
  --dark-bg: #1d3557;
  --text-color: #333;
  --text-light: #666;
  --white: #ffffff;
  --border-color: #dee2e6;
  --shadow: 0 2px 10px rgba(0,0,0,0.1);
  --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.7;
  color: var(--text-color);
  background-color: var(--white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--secondary-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

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

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary-color);
}

.logo span {
  color: var(--primary-color);
}

/* Navigation */
nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  color: var(--secondary-color);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

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

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

nav a:hover::after {
  width: 100%;
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--secondary-color);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
  color: var(--white);
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  color: var(--white);
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.hero p {
  color: rgba(255,255,255,0.9);
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

.hero-cta {
  display: inline-block;
  background: var(--primary-color);
  color: var(--white);
  padding: 1rem 2rem;
  border-radius: 5px;
  font-weight: 600;
  transition: var(--transition);
}

.hero-cta:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
}

/* Page Hero (smaller) */
.page-hero {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
  color: var(--white);
  padding: 3rem 0;
  text-align: center;
}

.page-hero h1 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.page-hero p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 0;
}

/* Breadcrumbs */
.breadcrumbs {
  background: var(--light-bg);
  padding: 1rem 0;
  font-size: 0.9rem;
}

.breadcrumbs a {
  color: var(--text-light);
}

.breadcrumbs span {
  color: var(--text-color);
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  padding: 3rem 0;
}

.card {
  background: var(--white);
  border-radius: 10px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.card-image {
  height: 200px;
  background: var(--light-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.card-content {
  padding: 1.5rem;
}

.card-content h3 {
  margin-bottom: 0.5rem;
}

.card-content p {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.card-link {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.card-link:hover {
  gap: 0.75rem;
}

/* Features Section */
.features {
  background: var(--light-bg);
  padding: 4rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-item {
  text-align: center;
  padding: 2rem;
  background: var(--white);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-item h3 {
  margin-bottom: 0.5rem;
}

/* Content Section */
.content-section {
  padding: 4rem 0;
}

.content-section h2 {
  text-align: center;
  margin-bottom: 3rem;
}

/* Article Content */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 20px;
}

.article-content h2 {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.article-content h2:first-of-type {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

.article-content ul, .article-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--text-light);
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin: 1.5rem 0;
}

/* Info Box */
.info-box {
  background: var(--light-bg);
  border-left: 4px solid var(--primary-color);
  padding: 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 10px 10px 0;
}

.info-box h4 {
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

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

/* Comparison Table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--white);
  box-shadow: var(--shadow);
  border-radius: 10px;
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: var(--secondary-color);
  color: var(--white);
  font-weight: 600;
}

.comparison-table tr:hover {
  background: var(--light-bg);
}

.comparison-table .check {
  color: #28a745;
  font-weight: bold;
}

.comparison-table .cross {
  color: #dc3545;
  font-weight: bold;
}

/* Pros/Cons */
.pros-cons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.pros, .cons {
  padding: 1.5rem;
  border-radius: 10px;
}

.pros {
  background: #e8f5e9;
  border: 1px solid #4caf50;
}

.cons {
  background: #ffebee;
  border: 1px solid #f44336;
}

.pros h4 {
  color: #2e7d32;
}

.cons h4 {
  color: #c62828;
}

.pros ul, .cons ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pros li::before {
  content: "✓ ";
  color: #4caf50;
  font-weight: bold;
}

.cons li::before {
  content: "✗ ";
  color: #f44336;
  font-weight: bold;
}

/* FAQ Section */
.faq-section {
  padding: 4rem 0;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  padding: 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--secondary-color);
}

.faq-question:hover {
  background: var(--light-bg);
}

.faq-answer {
  padding: 0 1.5rem 1.5rem;
  color: var(--text-light);
}

/* Sidebar Layout */
.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 3rem;
  padding: 3rem 0;
}

.sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.sidebar-widget {
  background: var(--light-bg);
  padding: 1.5rem;
  border-radius: 10px;
  margin-bottom: 1.5rem;
}

.sidebar-widget h4 {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-color);
}

.sidebar-widget ul {
  list-style: none;
}

.sidebar-widget li {
  margin-bottom: 0.5rem;
}

.sidebar-widget a {
  color: var(--text-light);
  display: block;
  padding: 0.25rem 0;
}

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

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 4rem 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-section p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 2rem;
}

.cta-button {
  display: inline-block;
  background: var(--white);
  color: var(--primary-color);
  padding: 1rem 2rem;
  border-radius: 5px;
  font-weight: 600;
  transition: var(--transition);
}

.cta-button:hover {
  background: var(--light-bg);
  transform: translateY(-2px);
}

/* Footer */
footer {
  background: var(--secondary-color);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: rgba(255,255,255,0.7);
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
}

/* Responsive Design */
@media (max-width: 992px) {
  .content-with-sidebar {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
    box-shadow: var(--shadow);
  }

  nav ul.active {
    display: flex;
  }

  nav li {
    border-bottom: 1px solid var(--border-color);
  }

  nav a {
    display: block;
    padding: 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .comparison-table {
    font-size: 0.9rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 0.75rem 0.5rem;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.hidden { display: none; }

/* Schema.org structured data helper */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}