/* 
* Blue Prince - Game Website Styles
* Modern and responsive design for the Blue Prince game website
*/

:root {
  /* Colors */
  --color-primary: #4cc9f0;
  --color-primary-dark: #3aa8d0;
  --color-secondary: #1a2a38;
  --color-accent: #60d394;
  --color-dark: #1a2a38;
  --color-light: #f8f9fa;
  --color-gray-100: #f8f9fa;
  --color-gray-200: #e9ecef;
  --color-gray-300: #dee2e6;
  --color-gray-400: #ced4da;
  --color-gray-500: #adb5bd;
  --color-gray-600: #6c757d;
  --color-gray-700: #495057;
  --color-gray-800: #343a40;
  --color-gray-900: #212529;
  
  /* Typography */
  --font-primary: 'Poppins', sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 3rem;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 1rem;
  --spacing-4: 1.5rem;
  --spacing-5: 2rem;
  --spacing-6: 3rem;
  --spacing-7: 4rem;
  --spacing-8: 6rem;
  
  /* Borders */
  --border-radius-sm: 0.25rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 2rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-light);
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

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

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 600;
  text-align: center;
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-dark);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-dark);
  transform: translateY(-3px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.3);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.btn--secondary:hover {
  background-color: rgba(76, 201, 240, 0.1);
  color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.3);
}

.btn--small {
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-sm);
}

/* Section Styles */
.section-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-5);
  text-align: center;
  color: var(--color-dark);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

section {
  padding: var(--spacing-7) 0;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #1a2a38;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  padding: var(--spacing-3) 0;
}

.header .container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo-container {
  display: flex;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: white;
  transition: var(--transition);
}

.logo-link:hover {
  opacity: 0.9;
  color: white;
}

.logo-img {
  height: 40px;
  width: auto;
  border-radius: 50%;
  margin-right: var(--spacing-2);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: #4cc9f0;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.nav__list {
  display: flex;
  gap: var(--spacing-4);
}

.nav__link {
  color: var(--color-gray-700);
  font-weight: 500;
  padding: var(--spacing-1);
  position: relative;
}

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

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

.nav__link:hover::after {
  width: 100%;
}

/* Hide navigation and hamburger menu */
.nav, .mobile-nav-toggle {
  display: none;
}

/* Hero Section */
.hero {
  padding: var(--spacing-8) 0;
  background: linear-gradient(180deg, #1a2a38 0%, #2a3b48 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(rgba(26, 42, 56, 0.8), rgba(26, 42, 56, 0.8)), 
                    url('images/Blue+Prince+Announcement+Screenshot+10.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.3;
  z-index: 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-6);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-4);
  line-height: 1.2;
  color: var(--color-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero__description {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-5);
}

.hero__cta {
  display: flex;
  gap: var(--spacing-3);
}

.hero__image {
  position: relative;
}

.hero__image img {
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  border: 3px solid var(--color-accent);
}

/* Features Section */
.features {
  background-color: var(--color-gray-100);
  padding-bottom: var(--spacing-8);
}

.features__intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-6);
  font-size: var(--font-size-lg);
  color: var(--color-gray-700);
}

.features__grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.feature-card {
  background-color: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-5);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

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

.feature-card__icon {
  width: 100%;
  height: 300px;
  margin-bottom: var(--spacing-4);
  overflow: hidden;
  border-radius: var(--border-radius);
}

.feature-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.feature-card:hover .feature-card__icon img {
  transform: scale(1.05);
}

.feature-card__content {
  flex: 1;
}

.feature-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-2);
  color: var(--color-primary);
}

.feature-card__subtitle {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-3);
  color: var(--color-secondary);
}

.feature-card__description {
  margin-bottom: var(--spacing-3);
  line-height: 1.7;
}

.feature-card__list {
  list-style: disc;
  padding-left: var(--spacing-4);
  margin-bottom: var(--spacing-3);
  color: var(--color-gray-700);
}

.feature-card__list li {
  margin-bottom: var(--spacing-2);
}

.features__conclusion {
  text-align: center;
  margin-top: var(--spacing-7);
  padding: var(--spacing-5);
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.features__conclusion-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-3);
  color: var(--color-primary);
}

.features__conclusion-text {
  max-width: 800px;
  margin: 0 auto var(--spacing-4);
  font-size: var(--font-size-lg);
}

.features__cta {
  margin-top: var(--spacing-4);
}

/* Responsive Features Section */
@media (min-width: 992px) {
  .feature-card {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-5);
  }

  .feature-card__icon {
    width: 40%;
    height: auto;
    margin-bottom: 0;
  }

  .feature-card__content {
    width: 60%;
  }
}

@media (max-width: 768px) {
  .features__intro {
    font-size: var(--font-size-base);
    padding: 0 var(--spacing-3);
  }

  .feature-card {
    padding: var(--spacing-4);
  }

  .feature-card__icon {
    height: 220px;
  }

  .feature-card__title {
    font-size: var(--font-size-lg);
  }

  .feature-card__subtitle {
    font-size: var(--font-size-base);
  }

  .features__conclusion {
    padding: var(--spacing-4);
    margin-top: var(--spacing-5);
  }

  .features__conclusion-title {
    font-size: var(--font-size-lg);
  }

  .features__conclusion-text {
    font-size: var(--font-size-base);
  }
}

/* What Is Section */
.what-is {
  background-color: var(--color-light);
  padding: var(--spacing-8) 0;
  position: relative;
}

.what-is .container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.what-is .section-title {
  margin-bottom: var(--spacing-6);
  text-align: center;
  color: var(--color-dark);
}

.what-is .container > .section-title::after {
  background-color: var(--color-primary);
  width: 100px;
}

.what-is__flex-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-6);
  align-items: center;
}

.what-is__content {
  flex: 1;
  min-width: 300px;
  padding-right: 0;
  order: 2;
}

.what-is__image {
  flex: 1;
  min-width: 300px;
  max-width: 500px;
  margin: 0 auto;
  order: 1;
}

.what-is__image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  transition: transform 0.5s ease;
}

.what-is__image:hover img {
  transform: scale(1.02);
}

.what-is__subtitle {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-3);
  font-weight: 600;
}

.what-is__feature-title {
  color: var(--color-dark);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-3);
  font-weight: 600;
  margin-top: var(--spacing-5);
}

.what-is__description {
  margin-bottom: var(--spacing-4);
  color: var(--color-gray-700);
  line-height: 1.6;
}

.what-is__highlights {
  background-color: var(--color-gray-100);
  padding: var(--spacing-4);
  border-radius: var(--border-radius);
  margin: var(--spacing-5) 0;
  box-shadow: var(--shadow);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-4);
  margin-top: var(--spacing-3);
}

.highlight-item {
  background-color: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-3);
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--color-primary);
  transition: transform 0.3s ease;
}

.highlight-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.highlight-title {
  color: var(--color-dark);
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--spacing-2);
}

.what-is__quote {
  background-color: rgba(76, 201, 240, 0.1);
  border-left: 3px solid var(--color-primary);
  padding: var(--spacing-3);
  margin-top: var(--spacing-4);
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  transition: transform 0.3s ease;
}

.what-is__quote:hover {
  transform: translateX(5px);
}

.what-is__quote p {
  font-style: italic;
  font-size: var(--font-size-lg);
  color: var(--color-gray-800);
  margin-bottom: var(--spacing-2);
}

.what-is__quote cite {
  font-weight: 600;
  color: var(--color-primary);
  display: block;
  text-align: right;
}

@media (min-width: 992px) {
  .what-is__flex-container {
    flex-wrap: nowrap;
  }
  
  .what-is__content {
    order: 2;
  }
  
  .what-is__image {
    order: 1;
  }
}

@media (max-width: 768px) {
  .what-is {
    padding: var(--spacing-6) 0;
  }
  
  .what-is__flex-container {
    flex-direction: column;
  }
  
  .what-is__content,
  .what-is__image {
    width: 100%;
  }
  
  .what-is__image {
    margin-bottom: var(--spacing-5);
  }
  
  .highlights-grid {
    grid-template-columns: 1fr;
  }
  
  .what-is__subtitle {
    text-align: center;
  }
  
  .what-is__description {
    text-align: center;
  }
  
  .what-is__feature-title {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .what-is {
    padding: var(--spacing-5) 0;
  }
  
  .what-is__subtitle {
    font-size: var(--font-size-lg);
  }
  
  .what-is__feature-title {
    font-size: var(--font-size-base);
  }
  
  .what-is__quote p {
    font-size: var(--font-size-base);
  }
}

/* How To Play Section */
.how-to-play {
  padding: 80px 0;
  background-color: var(--color-dark);
  position: relative;
  overflow: hidden;
}

.how-to-play::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-image: url('images/pattern-dark.png');
  background-repeat: repeat;
  opacity: 0.05;
  z-index: 0;
}

.how-to-play .container {
  position: relative;
  z-index: 1;
}

.how-to-play .section-title {
  color: white;
}

.how-to-play .section-title::after {
  background-color: var(--color-accent);
}

.how-to-play__intro {
  max-width: 800px;
  margin: 0 auto 60px;
  text-align: center;
}

.how-to-play__subtitle {
  font-size: 1.8rem;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.how-to-play__description {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--color-gray-300);
}

.how-to-play__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}

.step-card {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 30px;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 450px;
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.step-card__number {
  position: absolute;
  top: -20px;
  left: 20px;
  width: 40px;
  height: 40px;
  background-color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  z-index: 2;
}

.step-card__title {
  color: var(--color-accent);
  margin-bottom: 10px;
  font-size: 1.4rem;
  padding-top: 10px;
}

.step-card__subtitle {
  color: white;
  margin-bottom: 15px;
  font-size: 1.1rem;
  font-weight: 500;
}

.step-card__description {
  color: var(--color-gray-300);
  font-size: 1rem;
  line-height: 1.6;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.step-card__description p {
  margin: 0;
}

.step-card__tip {
  margin-top: auto;
  padding: 15px;
  background-color: rgba(96, 211, 148, 0.15);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 5px 5px 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.step-card__tip h5 {
  color: var(--color-accent);
  margin-bottom: 5px;
  font-size: 0.95rem;
}

.step-card__tip p {
  color: var(--color-gray-300);
  font-size: 0.9rem;
  line-height: 1.5;
}

.how-to-play__advanced {
  margin-bottom: 60px;
}

.how-to-play__tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.tip-item {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 20px;
  border-top: 3px solid var(--color-accent);
}

.tip-title {
  color: var(--color-accent);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.tip-item p {
  color: var(--color-gray-300);
  line-height: 1.6;
}

.how-to-play__video {
  text-align: center;
  margin-top: 60px;
}

.how-to-play__video img {
  max-width: 100%;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.how-to-play__caption {
  margin-top: 15px;
  color: var(--color-gray-300);
  font-size: 0.9rem;
  font-style: italic;
}

/* Why Play Section */
.why-play {
  background-color: var(--color-gray-100);
  padding: var(--spacing-7) 0;
}

.why-play__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-5);
  margin-top: var(--spacing-5);
}

.reason-card {
  background-color: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-5);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
  border-top: 4px solid var(--color-primary);
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.reason-card__icon {
  width: 180px;
  height: 120px;
  margin: 0 auto var(--spacing-4);
  overflow: hidden;
  border-radius: var(--border-radius-sm);
}

.reason-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.reason-card:hover .reason-card__icon img {
  transform: scale(1.05);
}

.reason-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-3);
  color: var(--color-primary);
}

.reason-card__description {
  color: var(--color-gray-700);
  font-size: var(--font-size-base);
  line-height: 1.6;
  margin-top: auto;
}

@media (max-width: 1400px) {
  .how-to-play__steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .how-to-play {
    padding: 60px 0;
  }
  
  .how-to-play__steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .step-card {
    padding: 25px 20px;
    min-height: auto;
  }
  
  .step-card__title {
    font-size: 1.3rem;
  }
  
  .how-to-play__tips-grid {
    grid-template-columns: 1fr;
  }
  
  .what-is .container {
    grid-template-columns: 1fr;
    gap: var(--spacing-5);
  }
  
  .what-is__content {
    order: 2;
    padding-right: 0;
  }
  
  .what-is__image {
    order: 1;
  }
  
  .highlights-grid {
    grid-template-columns: 1fr;
  }
  
  .why-play__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
  
  .reason-card {
    padding: var(--spacing-4);
  }
  
  .reason-card__icon {
    width: 150px;
    height: 100px;
    margin-bottom: var(--spacing-3);
  }
}

@media (max-width: 480px) {
  .how-to-play {
    padding: 40px 0;
  }
  
  .how-to-play__subtitle {
    font-size: 1.4rem;
  }
  
  .reason-card__icon {
    width: 120px;
    height: 80px;
  }
  
  .reason-card__title {
    font-size: var(--font-size-base);
  }
  
  .reason-card__description {
    font-size: var(--font-size-sm);
  }
}

/* FAQ Section */
.faq {
  background-color: var(--color-gray-100);
  padding: var(--spacing-7) 0;
}

.faq__intro {
  max-width: 800px;
  margin: 0 auto var(--spacing-5);
  text-align: center;
  color: var(--color-gray-700);
  font-size: var(--font-size-lg);
  line-height: 1.6;
}

.faq__category-title {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  margin: var(--spacing-6) 0 var(--spacing-4);
  text-align: center;
  font-weight: 600;
}

.faq__list {
  max-width: 900px;
  margin: 0 auto var(--spacing-5);
}

.faq-item {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  margin-bottom: var(--spacing-4);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.faq-item__question {
  width: 100%;
  text-align: left;
  background-color: white;
  padding: var(--spacing-4);
  border: none;
  cursor: pointer;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.faq-item__question:hover {
  background-color: var(--color-gray-100);
}

.faq-item__icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-left: var(--spacing-3);
}

.faq-item__icon::before,
.faq-item__icon::after {
  content: '';
  position: absolute;
  background-color: var(--color-primary);
  transition: var(--transition);
}

.faq-item__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.faq-item__icon::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.faq-item__question[aria-expanded="true"] .faq-item__icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.faq-item__answer {
  padding: var(--spacing-4) var(--spacing-5);
  display: block;
  background-color: var(--color-light);
  color: var(--color-gray-700);
  line-height: 1.6;
}

.faq-item__answer p {
  margin-bottom: var(--spacing-3);
}

.faq-item__answer p:last-child {
  margin-bottom: 0;
}

.faq-item__answer h4 {
  color: var(--color-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  margin: var(--spacing-3) 0 var(--spacing-2);
}

.faq-item__answer ul {
  list-style: disc;
  padding-left: var(--spacing-4);
  margin-bottom: var(--spacing-3);
}

.faq-item__answer li {
  margin-bottom: var(--spacing-1);
}

.faq-item__answer strong {
  color: var(--color-dark);
  font-weight: 600;
}

@media (max-width: 768px) {
  .faq__intro {
    font-size: var(--font-size-base);
    padding: 0 var(--spacing-3);
  }
  
  .faq__category-title {
    font-size: var(--font-size-lg);
    margin: var(--spacing-5) 0 var(--spacing-3);
  }
  
  .faq-item__question {
    padding: var(--spacing-3);
    font-size: var(--font-size-base);
  }
  
  .faq-item__answer {
    padding: var(--spacing-3);
  }
}

/* Footer */
.footer {
  background-color: var(--color-dark);
  color: var(--color-gray-300);
  padding: var(--spacing-7) 0 var(--spacing-3);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: var(--spacing-5);
  margin-bottom: var(--spacing-6);
}

.footer__logo {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-3);
}

.footer__logo img {
  height: 40px;
  margin-right: var(--spacing-2);
}

.footer__logo-text {
  color: white;
  font-size: 1.5rem;
  font-weight: 600;
}

.footer__description {
  margin-bottom: var(--spacing-4);
  max-width: 350px;
  line-height: 1.6;
}

.footer__social {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--color-primary);
  transform: translateY(-3px);
}

.social-link svg {
  color: white;
  width: 20px;
  height: 20px;
}

.footer__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-4);
  color: white;
  position: relative;
  padding-bottom: var(--spacing-2);
}

.footer__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--color-primary);
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.footer__nav li {
  margin-bottom: var(--spacing-1);
}

.footer__nav a {
  color: var(--color-gray-400);
  transition: var(--transition);
  display: inline-block;
  padding: 3px 0;
}

.footer__nav a:hover {
  color: white;
  transform: translateX(5px);
}

.footer__contact p {
  margin-bottom: var(--spacing-3);
  line-height: 1.6;
}

.footer__form {
  margin-top: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.form-group {
  display: flex;
  gap: var(--spacing-2);
}

.form-group input {
  flex: 1;
  padding: var(--spacing-2);
  border-radius: var(--border-radius-sm);
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: var(--font-size-sm);
}

.form-group input::placeholder {
  color: var(--color-gray-400);
}

.form-group input:focus {
  outline: none;
  background-color: rgba(255, 255, 255, 0.15);
}

.footer__contact-info {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
  padding: var(--spacing-3);
  margin-top: var(--spacing-3);
}

.footer__contact-info p {
  margin-bottom: var(--spacing-2);
  font-size: var(--font-size-sm);
}

.footer__contact-info p:last-child {
  margin-bottom: 0;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-4);
  text-align: center;
}

.footer__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  justify-content: center;
  margin-bottom: var(--spacing-2);
}

.footer__badge {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  padding: 5px 10px;
  font-size: var(--font-size-sm);
  color: var(--color-gray-200);
  display: inline-flex;
  align-items: center;
  transition: var(--transition);
}

.footer__badge:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  justify-content: center;
}

.footer__legal a {
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
  transition: var(--transition);
}

.footer__legal a:hover {
  color: white;
  text-decoration: underline;
}

@media (max-width: 1200px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-5) var(--spacing-4);
  }
  
  .footer__info {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .footer {
    padding-top: var(--spacing-5);
  }
  
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-5);
  }
  
  .footer__info {
    grid-column: 1;
  }
  
  .footer__logo {
    justify-content: center;
  }
  
  .footer__description {
    text-align: center;
    max-width: 100%;
  }
  
  .footer__social {
    justify-content: center;
  }
  
  .footer__title {
    text-align: center;
  }
  
  .footer__title::after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .footer__nav {
    align-items: center;
  }
  
  .footer__contact p {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .social-link {
    width: 35px;
    height: 35px;
  }
  
  .footer__badges {
    flex-direction: column;
    gap: var(--spacing-2);
    align-items: center;
  }
  
  .footer__legal {
    flex-direction: column;
    gap: var(--spacing-2);
  }
}

/* Media Queries */
@media (max-width: 992px) {
  :root {
    --font-size-3xl: 2.5rem;
  }
  
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-6) var(--spacing-4);
  }
  
  .footer__contact {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-3xl: 2rem;
    --font-size-2xl: 1.75rem;
  }
  
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 70%;
    max-width: 300px;
    background-color: white;
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: var(--transition);
    z-index: 100;
    padding: var(--spacing-6) var(--spacing-4);
  }
  
  .nav.active {
    transform: translateX(0);
  }
  
  .nav__list {
    flex-direction: column;
    gap: var(--spacing-3);
  }
  
  .mobile-nav-toggle {
    display: block;
    z-index: 101;
  }
  
  .hero .container,
  .what-is .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero__image,
  .what-is__image {
    grid-row: 1;
    margin-bottom: var(--spacing-4);
  }
  
  .hero__cta {
    justify-content: center;
  }
  
  .what-is__content {
    padding-right: 0;
  }
  
  .footer__grid {
    grid-template-columns: 1fr;
  }
  
  .footer__contact {
    grid-column: 1;
  }
  
  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-3);
    text-align: center;
  }
  
  section {
    padding: var(--spacing-5) 0;
  }
  
  .section-title {
    font-size: var(--font-size-xl);
  }
  
  .header {
    padding: var(--spacing-2) 0;
  }
  
  .logo-text {
    font-size: 1.2rem;
  }
  
  .logo-img {
    height: 32px;
  }
  
  .hero {
    padding: var(--spacing-5) 0;
  }
  
  .hero .container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    text-align: center;
  }
  
  .hero__image {
    order: -1;
    margin-bottom: var(--spacing-4);
    width: 100%;
  }
  
  .hero__image img {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
  }
  
  .hero__title {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-3);
  }
  
  .hero__description {
    font-size: 1rem;
    margin-bottom: var(--spacing-4);
  }
  
  .hero__cta {
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-2);
  }
  
  .features__grid, 
  .how-to-play__steps, 
  .why-play__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
  
  .feature-card,
  .reason-card {
    padding: var(--spacing-3);
  }
  
  .feature-card__icon,
  .reason-card__icon {
    width: 140px;
    height: 100px;
  }
  
  .what-is .container {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
  
  .what-is__image {
    grid-row: 1;
  }
  
  .what-is__content {
    padding-right: 0;
  }
  
  .faq-item__question {
    padding: var(--spacing-3);
    font-size: 1rem;
  }
  
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
  
  .footer__info,
  .footer__links,
  .footer__contact {
    text-align: center;
  }
  
  .footer__description {
    margin: 0 auto var(--spacing-3);
  }
  
  .footer__social {
    justify-content: center;
  }
  
  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-3);
    text-align: center;
  }
  
  .footer__legal {
    flex-direction: column;
    gap: var(--spacing-2);
  }
  
  .form-group {
    flex-direction: column;
    gap: var(--spacing-2);
  }
  
  .form-group input {
    width: 100%;
    padding: var(--spacing-3);
    border-radius: var(--border-radius);
    font-size: 16px;
  }
  
  .form-group .btn--small {
    width: 100%;
    padding: var(--spacing-3);
  }
  
  .btn, 
  .nav__link,
  .social-link,
  .footer__nav a,
  .footer__legal a,
  .logo-link {
    padding: var(--spacing-2) var(--spacing-3);
  }
  
  .faq-item__question {
    min-height: 60px;
  }
  
  .feature-card, 
  .step-card, 
  .reason-card {
    min-height: 250px;
  }
  
  input, 
  button, 
  select, 
  textarea {
    font-size: 16px;
  }
}

@media (max-width: 576px) {
  :root {
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.5rem;
    --font-size-xl: 1.25rem;
  }
  
  section {
    padding: var(--spacing-6) 0;
  }
  
  .features__grid,
  .how-to-play__steps,
  .why-play__grid {
    grid-template-columns: 1fr;
  }
  
  .footer__legal {
    flex-direction: column;
    gap: var(--spacing-2);
  }
}

@media (max-width: 480px) {
  .logo-text {
    font-size: 1rem;
  }
  
  .logo-img {
    height: 28px;
  }
  
  .btn {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: 0.9rem;
  }
  
  .hero__title {
    font-size: 1.5rem;
  }
  
  .feature-card__icon,
  .reason-card__icon {
    width: 120px;
    height: 80px;
  }
  
  .how-to-play__video {
    border-radius: var(--border-radius-sm);
  }
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--color-primary);
  color: var(--color-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 99;
}

.back-to-top.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-5px);
}

@media (max-width: 768px) {
  .back-to-top {
    width: 40px;
    height: 40px;
    bottom: 20px;
    right: 20px;
  }
  
  .back-to-top svg {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 1200px) {
  .how-to-play__steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .step-card {
    min-height: 400px;
  }
}

/* Video Section */
.video-section {
  background-color: var(--color-dark);
  padding: var(--spacing-7) 0;
  position: relative;
}

.video-section::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-image: url('images/pattern-dark.png');
  background-repeat: repeat;
  opacity: 0.05;
  z-index: 0;
}

.video-section .container {
  position: relative;
  z-index: 1;
}

.video-section .section-title {
  text-align: center;
  color: white;
  margin-bottom: var(--spacing-6);
}

.video-section .section-title::after {
  background-color: var(--color-primary);
  margin: var(--spacing-2) auto 0;
}

.video-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-5);
  justify-content: center;
}

.video-item {
  flex: 1;
  min-width: 300px;
  max-width: 560px;
  transition: transform 0.3s ease;
}

.video-item:hover {
  transform: translateY(-5px);
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 比例 */
  height: 0;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-title {
  color: white;
  text-align: center;
  margin-top: var(--spacing-3);
  font-size: var(--font-size-lg);
  font-weight: 500;
}

@media (max-width: 768px) {
  .video-container {
    flex-direction: column;
    align-items: center;
  }
  
  .video-item {
    width: 100%;
  }
  
  .video-section .section-title {
    font-size: var(--font-size-xl);
  }
  
  .video-title {
    font-size: var(--font-size-base);
    margin-top: var(--spacing-2);
    margin-bottom: var(--spacing-4);
  }
}

/* Ad Section Styles */
.ad-section {
    padding: 2rem 0;
    background-color: var(--bg-secondary);
    margin: 2rem 0;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.ad-section .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 90px;
}

#container-7d977c9e91e030a9fe7f554cd565c063 {
    width: 100%;
    max-width: 728px;
    margin: 0 auto;
    background-color: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

/* Responsive adjustments for ad section */
@media (max-width: 768px) {
    .ad-section {
        padding: 1.5rem 0;
        margin: 1.5rem 0;
    }
    
    .ad-section .container {
        padding: 0 0.5rem;
    }
}