/**
 * WK777 Login Website Stylesheet
 * All classes use g402- prefix for namespace isolation
 * Mobile-first responsive design with max-width 430px
 * Color Scheme: #0C0C0C (Black) + #E91E63 (Pink)
 */

/* ==================== CSS Variables ==================== */
:root {
  --g402-black: #0C0C0C;
  --g402-pink: #E91E63;
  --g402-white: #FFFFFF;
  --g402-gray: #2A2A2A;
  --g402-light-gray: #F5F5F5;
  --g402-pink-light: rgba(233, 30, 99, 0.1);
  --g402-pink-medium: rgba(233, 30, 99, 0.3);
  --g402-pink-dark: #C2185B;
  --g402-shadow: 0 4px 16px rgba(233, 30, 99, 0.2);
  --g402-shadow-lg: 0 8px 32px rgba(233, 30, 99, 0.3);
  --g402-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 1.6rem;
  line-height: 1.5;
  color: var(--g402-white);
  background: var(--g402-black);
  overflow-x: hidden;
}

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

a {
  color: var(--g402-pink);
  text-decoration: none;
  transition: var(--g402-transition);
}

a:hover {
  color: var(--g402-pink-dark);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  transition: var(--g402-transition);
}

/* ==================== Header ==================== */
.g402-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--g402-black);
  border-bottom: 2px solid var(--g402-pink-medium);
  padding: 1.2rem 2rem;
  z-index: 1000;
  transition: var(--g402-transition);
}

.g402-header.g402-scrolled {
  background: rgba(12, 12, 12, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--g402-shadow);
}

.g402-header-container {
  max-width: 430px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.g402-logo-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.g402-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.g402-site-name {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--g402-pink);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.g402-header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.g402-btn-register,
.g402-btn-login {
  padding: 0.8rem 1.6rem;
  font-size: 1.4rem;
  font-weight: 600;
  border-radius: 8px;
  transition: var(--g402-transition);
  min-height: 44px;
}

.g402-btn-register {
  background: linear-gradient(135deg, var(--g402-pink), var(--g402-pink-dark));
  color: var(--g402-white);
  box-shadow: var(--g402-shadow);
}

.g402-btn-register:hover {
  transform: translateY(-2px);
  box-shadow: var(--g402-shadow-lg);
}

.g402-btn-login {
  background: transparent;
  color: var(--g402-pink);
  border: 2px solid var(--g402-pink);
}

.g402-btn-login:hover {
  background: var(--g402-pink-light);
}

.g402-menu-toggle {
  font-size: 2.4rem;
  color: var(--g402-pink);
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==================== Mobile Menu ==================== */
.g402-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--g402-black);
  border-left: 2px solid var(--g402-pink);
  z-index: 9999;
  transition: right 0.3s ease;
  overflow-y: auto;
}

.g402-mobile-menu.g402-active {
  right: 0;
}

.g402-menu-header {
  padding: 2rem;
  border-bottom: 1px solid var(--g402-pink-medium);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.g402-menu-close {
  font-size: 2.8rem;
  color: var(--g402-pink);
  min-width: 44px;
  min-height: 44px;
}

.g402-menu-nav {
  padding: 2rem 0;
}

.g402-menu-link {
  display: block;
  padding: 1.4rem 2rem;
  color: var(--g402-white);
  font-size: 1.6rem;
  border-left: 3px solid transparent;
  transition: var(--g402-transition);
}

.g402-menu-link:hover,
.g402-menu-link.g402-active {
  background: var(--g402-pink-light);
  border-left-color: var(--g402-pink);
  color: var(--g402-pink);
}

.g402-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: var(--g402-transition);
}

.g402-menu-overlay.g402-active {
  opacity: 1;
  visibility: visible;
}

/* ==================== Main Content ==================== */
.g402-main {
  padding-top: 70px;
  padding-bottom: 80px;
  max-width: 430px;
  margin: 0 auto;
}

.g402-container {
  padding: 0 2rem;
}

.g402-section {
  padding: 3rem 0;
}

/* ==================== Carousel ==================== */
.g402-carousel-container {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 12px;
  margin: 2rem 0;
}

.g402-carousel-track {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
}

.g402-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease;
  cursor: pointer;
}

.g402-carousel-slide.g402-active {
  opacity: 1;
  z-index: 1;
}

.g402-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.g402-carousel-dots {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.8rem;
  z-index: 2;
}

.g402-carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--g402-transition);
}

.g402-carousel-dot.g402-active,
.g402-carousel-dot:hover {
  background: var(--g402-pink);
  transform: scale(1.2);
}

/* ==================== Typography ==================== */
.g402-title-main {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--g402-pink);
  line-height: 1.2;
  margin: 2rem 0;
  text-align: center;
}

.g402-title-section {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--g402-pink);
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 1rem;
}

.g402-title-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--g402-pink), transparent);
}

.g402-subtitle {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--g402-white);
  margin-bottom: 1.5rem;
}

.g402-text {
  font-size: 1.6rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
}

/* ==================== Game Categories ==================== */
.g402-category-nav {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding: 1rem 0;
  margin-bottom: 2rem;
  scrollbar-width: none;
}

.g402-category-nav::-webkit-scrollbar {
  display: none;
}

.g402-category-btn {
  padding: 1rem 2rem;
  background: var(--g402-gray);
  color: var(--g402-white);
  border: 2px solid transparent;
  border-radius: 25px;
  font-size: 1.4rem;
  font-weight: 600;
  white-space: nowrap;
  min-height: 44px;
  transition: var(--g402-transition);
}

.g402-category-btn.g402-active,
.g402-category-btn:hover {
  background: var(--g402-pink-light);
  border-color: var(--g402-pink);
  color: var(--g402-pink);
}

/* ==================== Game Grid ==================== */
.g402-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.g402-game-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--g402-gray);
  transition: var(--g402-transition);
  cursor: pointer;
}

.g402-game-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--g402-shadow-lg);
}

.g402-game-icon {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.g402-game-name {
  padding: 0.8rem;
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
  color: var(--g402-white);
  background: rgba(233, 30, 99, 0.15);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==================== Feature Cards ==================== */
.g402-feature-grid {
  display: grid;
  gap: 2rem;
  margin: 3rem 0;
}

.g402-feature-card {
  background: linear-gradient(135deg, var(--g402-gray), var(--g402-black));
  border: 2px solid var(--g402-pink-medium);
  border-radius: 16px;
  padding: 2.5rem;
  transition: var(--g402-transition);
}

.g402-feature-card:hover {
  border-color: var(--g402-pink);
  box-shadow: var(--g402-shadow-lg);
}

.g402-feature-icon {
  font-size: 3.6rem;
  color: var(--g402-pink);
  margin-bottom: 1.5rem;
}

/* ==================== CTA Buttons ==================== */
.g402-btn-cta {
  display: inline-block;
  padding: 1.4rem 3rem;
  background: linear-gradient(135deg, var(--g402-pink), var(--g402-pink-dark));
  color: var(--g402-white);
  font-size: 1.6rem;
  font-weight: 700;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--g402-shadow);
  transition: var(--g402-transition);
  min-height: 52px;
}

.g402-btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: var(--g402-shadow-lg);
  color: var(--g402-white);
}

/* ==================== FAQ Accordion ==================== */
.g402-faq-list {
  margin: 2rem 0;
}

.g402-faq-item {
  background: var(--g402-gray);
  border: 2px solid var(--g402-pink-medium);
  border-radius: 12px;
  margin-bottom: 1.5rem;
  overflow: hidden;
  transition: var(--g402-transition);
}

.g402-faq-question {
  padding: 1.8rem 2rem;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--g402-white);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 60px;
}

.g402-faq-question::after {
  content: '+';
  font-size: 2.4rem;
  color: var(--g402-pink);
  transition: var(--g402-transition);
}

.g402-faq-item.g402-active .g402-faq-question::after {
  content: '−';
}

.g402-faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.g402-faq-item.g402-active .g402-faq-answer {
  max-height: 1000px;
}

.g402-faq-answer-content {
  padding: 0 2rem 2rem 2rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

/* ==================== Partners ==================== */
.g402-partners-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  align-items: center;
  padding: 2rem 0;
}

.g402-partner-logo {
  width: 100%;
  height: auto;
  opacity: 0.7;
  filter: grayscale(1);
  transition: var(--g402-transition);
}

.g402-partner-logo:hover {
  opacity: 1;
  filter: grayscale(0);
}

/* ==================== Footer ==================== */
.g402-footer {
  background: var(--g402-black);
  border-top: 2px solid var(--g402-pink-medium);
  padding: 3rem 2rem 10rem 2rem;
  margin-top: 4rem;
}

.g402-footer-content {
  max-width: 430px;
  margin: 0 auto;
}

.g402-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.g402-footer-link {
  font-size: 1.4rem;
  color: var(--g402-white);
}

.g402-footer-link:hover {
  color: var(--g402-pink);
}

.g402-copyright {
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.3rem;
  margin-top: 2rem;
}

/* ==================== Bottom Navigation ==================== */
.g402-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--g402-black);
  border-top: 2px solid var(--g402-pink-medium);
  padding: 0.8rem 0;
  z-index: 1000;
  box-shadow: 0 -4px 16px rgba(233, 30, 99, 0.2);
}

.g402-bottom-nav-container {
  max-width: 430px;
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.g402-bottom-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  min-width: 60px;
  min-height: 60px;
  padding: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--g402-transition);
}

.g402-bottom-nav-link:hover,
.g402-bottom-nav-link.g402-active {
  color: var(--g402-pink);
}

.g402-bottom-nav-icon {
  font-size: 2.4rem;
}

.g402-bottom-nav-text {
  font-size: 1.1rem;
  font-weight: 500;
}

/* ==================== Utilities ==================== */
.g402-text-center {
  text-align: center;
}

.g402-mt-1 { margin-top: 1rem; }
.g402-mt-2 { margin-top: 2rem; }
.g402-mt-3 { margin-top: 3rem; }
.g402-mb-1 { margin-bottom: 1rem; }
.g402-mb-2 { margin-bottom: 2rem; }
.g402-mb-3 { margin-bottom: 3rem; }

/* ==================== Responsive Design ==================== */
@media (min-width: 769px) {
  .g402-bottom-nav {
    display: none;
  }

  .g402-main {
    padding-bottom: 2rem;
  }

  .g402-footer {
    padding-bottom: 3rem;
  }
}

@media (max-width: 768px) {
  .g402-main {
    padding-bottom: 80px;
  }
}

@media (max-width: 380px) {
  .g402-game-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }

  .g402-partners-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}