/* CSS Variables */
:root {
  --primary: #1d4ed8;
  --secondary: #f59e0b;
  --bg: #f9fafb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --shadow: rgba(0, 0, 0, 0.1);
  --gradient: linear-gradient(135deg, var(--primary), #3b82f6);
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: "Roboto", sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Poppins", sans-serif;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3rem;
}
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: 1rem;
  font-weight: 300;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

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

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

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  text-decoration: none;
  min-width: 140px;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(29, 78, 216, 0.4);
}

.btn-secondary {
  background: var(--secondary);
  color: white;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px var(--shadow);
  transition: all 0.3s ease;
}

.navbar {
  padding: 1rem 0;
}

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

.nav-logo a {
  font-family: "Poppins", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, var(--bg) 0%, #eff6ff 100%);
  position: relative;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--muted);
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 20px 40px var(--shadow);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

/* News Section */
.news-section {
  padding: 80px 0;
}

.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 20px;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: 25px;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.news-card {
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px var(--shadow);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
}

.news-card.fade-in {
  opacity: 1;
  transform: translateY(0);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px var(--shadow);
}

.news-image {
  height: 200px;
  overflow: hidden;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.news-card:hover .news-image img {
  transform: scale(1.05);
}

.news-content {
  padding: 1.5rem;
}

.news-category {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 4px 12px;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.news-content h3 {
  margin-bottom: 1rem;
  color: var(--text);
}

.news-content p {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

/* Review Section */
.review-section {
  padding: 80px 0;
  background: var(--card);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.review-card {
  background: var(--bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px var(--shadow);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
}

.review-card.fade-in {
  opacity: 1;
  transform: translateY(0);
}

.review-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px var(--shadow);
}

.review-image {
  height: 180px;
  overflow: hidden;
}

.review-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.review-content {
  padding: 1.5rem;
}

.rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.stars {
  color: var(--secondary);
  font-size: 1.2rem;
}

.rating-score {
  font-weight: 500;
  color: var(--muted);
}

/* Tips Section */
.tips-section {
  padding: 80px 0;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.tips-card {
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px var(--shadow);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
}

.tips-card.fade-in {
  opacity: 1;
  transform: translateY(0);
}

.tips-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px var(--shadow);
}

.tips-image {
  height: 200px;
  overflow: hidden;
}

.tips-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tips-content {
  padding: 1.5rem;
}

.tips-meta {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.tips-duration,
.tips-difficulty {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Video Section */
.video-section {
  padding: 80px 0;
  background: var(--card);
}

.video-featured {
  margin-bottom: 3rem;
}

.video-player {
  max-width: 800px;
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 30px var(--shadow);
}

.video-carousel {
  position: relative;
  margin-top: 3rem;
}

.carousel-container {
  overflow: hidden;
  border-radius: 12px;
}

.carousel-track {
  display: flex;
  gap: 1.5rem;
  transition: transform 0.5s ease;
  padding: 1rem 0;
}

.video-card {
  min-width: 250px;
  background: var(--bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px var(--shadow);
  position: relative;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.video-card:hover {
  transform: scale(1.05);
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 60px;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.video-card:hover .video-overlay {
  opacity: 1;
}

.play-button {
  font-size: 2rem;
  color: white;
}

.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
}

.video-card h4 {
  padding: 1rem;
  font-size: 0.9rem;
  margin-bottom: 0;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary);
  color: white;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 4px 15px var(--shadow);
  transition: all 0.3s ease;
}

.carousel-btn:hover {
  background: var(--secondary);
  transform: translateY(-50%) scale(1.1);
}

.carousel-btn.prev {
  left: 10px;
}

.carousel-btn.next {
  right: 10px;
}

/* Testimonial Section */
.testimonial-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary), #3b82f6);
  color: white;
}

.testimonial-section .section-header {
  color: white;
}

.testimonial-carousel {
  position: relative;
}

.testimonial-container {
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  gap: 2rem;
  transition: transform 0.5s ease;
}

.testimonial-card {
  min-width: 400px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.testimonial-content p {
  font-size: 1.1rem;
  font-style: italic;
  margin-bottom: 1.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.author-info h4 {
  margin-bottom: 0.25rem;
}

.author-info span {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* FAQ Section */
.faq-section {
  padding: 80px 0;
  background: var(--card);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-family: "Poppins", sans-serif;
  font-weight: 500;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.3s ease;
}

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

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-answer[aria-hidden="false"] {
  padding: 0 1.5rem 1.5rem;
  max-height: 200px;
}

/* Contact Section */
.contact-section {
  padding: 80px 0;
  background: var(--bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.newsletter-card,
.contact-card {
  background: var(--card);
  border-radius: 12px;
  padding: 2.5rem;
  box-shadow: 0 8px 30px var(--shadow);
}

.newsletter-form,
.contact-form {
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-family: "Roboto", sans-serif;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.newsletter-benefits {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.benefit-icon {
  font-size: 1.2rem;
}

/* Footer */
.footer {
  background: var(--text);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo h3 {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.footer-section h4 {
  margin-bottom: 1.5rem;
  color: white;
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: #d1d5db;
  transition: color 0.3s ease;
}

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

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: white;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid #374151;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-legal {
  display: flex;
  gap: 2rem;
}

.footer-legal a {
  color: #9ca3af;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

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

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
}

.modal-content {
  background-color: var(--card);
  margin: 15% auto;
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 20px 40px var(--shadow);
  animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  padding: 20px 20px 0;
  text-align: right;
}

.modal-close {
  font-size: 2rem;
  font-weight: 300;
  cursor: pointer;
  color: var(--muted);
  transition: color 0.3s ease;
}

.modal-close:hover {
  color: var(--text);
}

.modal-body {
  padding: 0 40px 40px;
  text-align: center;
}

.success-icon {
  width: 80px;
  height: 80px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: white;
  margin: 0 auto 2rem;
}

/* Animations */
.fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .nav-menu {
    gap: 1.5rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .testimonial-card {
    min-width: 350px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: white;
    flex-direction: column;
    align-items: center;
    justify-content: start;
    padding-top: 2rem;
    transition: left 0.3s ease;
    box-shadow: 0 5px 20px var(--shadow);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

  .news-grid,
  .review-grid,
  .tips-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .testimonial-card {
    min-width: 280px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .filter-tabs {
    justify-content: flex-start;
    overflow-x: auto;
    padding: 0 0 1rem;
  }

  .filter-btn {
    white-space: nowrap;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  h1 {
    font-size: 2rem;
  }
  h2 {
    font-size: 1.8rem;
  }
  h3 {
    font-size: 1.4rem;
  }

  .hero {
    padding: 100px 0 60px;
  }

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

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

  .btn {
    width: 100%;
    text-align: center;
  }

  .newsletter-card,
  .contact-card {
    padding: 1.5rem;
  }

  .testimonial-card {
    min-width: 250px;
    padding: 1.5rem;
  }
}

/* Print Styles */
@media print {
  .header,
  .video-section,
  .contact-section,
  .footer {
    display: none;
  }

  .hero {
    padding: 0;
  }

  * {
    background: white !important;
    color: black !important;
  }
}