/**
 * kkwim.xyz - Main CSS Stylesheet
 * Version: 007f
 * Mobile-first responsive design for Vietnamese gaming website
 * Color scheme: #CED4DA (light gray) | #FFE4B5 (moccasin) | #1A1A1A (dark)
 */

/* CSS Variables with s007 prefix */
:root {
  --s007-primary: #FFE4B5;
  --s007-secondary: #CED4DA;
  --s007-dark: #1A1A1A;
  --s007-bg: #1A1A1A;
  --s007-text: #CED4DA;
  --s007-accent: #FFE4B5;
  --s007-border: #333;
  --s007-success: #28a745;
  --s007-warning: #ffc107;
  --s007-danger: #dc3545;
  --s007-shadow: rgba(0, 0, 0, 0.3);
  --s007-radius: 0.8rem;
  --s007-transition: all 0.3s ease;
  --s007-header-height: 6rem;
  --s007-mobile-nav-height: 5.6rem;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 62.5%; /* 1rem = 10px */
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--s007-text);
  background-color: var(--s007-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Layout containers */
.s007-container {
  max-width: 43rem;
  margin: 0 auto;
  padding: 0 1rem;
  width: 100%;
}

.s007-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: var(--s007-header-height);
  padding-bottom: var(--s007-mobile-nav-height);
}

.s007-main {
  flex: 1;
  padding: 1rem 0;
}

/* Typography */
.s007-h1 {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--s007-accent);
  margin-bottom: 1.5rem;
  line-height: 1.2;
  text-align: center;
}

.s007-h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--s007-accent);
  margin: 2rem 0 1rem;
  line-height: 1.3;
}

.s007-h3 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--s007-primary);
  margin: 1.5rem 0 1rem;
  line-height: 1.3;
}

.s007-p {
  margin-bottom: 1rem;
  line-height: 1.6;
}

.s007-text-center {
  text-align: center;
}

.s007-text-accent {
  color: var(--s007-accent);
  font-weight: 600;
}

/* Header and Navigation */
.s007-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--s007-header-height);
  background: linear-gradient(135deg, var(--s007-dark) 0%, #2a2a2a 100%);
  border-bottom: 2px solid var(--s007-border);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  transition: var(--s007-transition);
  box-shadow: 0 2px 10px var(--s007-shadow);
}

.s007-header-hidden {
  transform: translateY(-100%);
}

.s007-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: var(--s007-accent);
}

.s007-logo-img {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  border: 2px solid var(--s007-accent);
}

.s007-logo-text {
  font-size: 1.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
}

.s007-header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.s007-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.2rem;
  font-size: 1.2rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--s007-radius);
  cursor: pointer;
  transition: var(--s007-transition);
  min-height: 4.4rem;
  min-width: 4.4rem;
  background: linear-gradient(135deg, var(--s007-accent) 0%, #ffd700 100%);
  color: var(--s007-dark);
  box-shadow: 0 2px 8px rgba(255, 228, 181, 0.3);
}

.s007-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 228, 181, 0.4);
}

.s007-btn:active {
  transform: translateY(0);
}

.s007-btn-outline {
  background: transparent;
  color: var(--s007-accent);
  border: 2px solid var(--s007-accent);
}

.s007-btn-outline:hover {
  background: var(--s007-accent);
  color: var(--s007-dark);
}

/* Hamburger Menu */
.s007-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  cursor: pointer;
  padding: 0.5rem;
}

.s007-hamburger span {
  display: block;
  width: 100%;
  height: 0.2rem;
  background: var(--s007-accent);
  margin: 0.2rem 0;
  transition: var(--s007-transition);
  border-radius: 0.1rem;
}

.s007-hamburger.s007-active span:nth-child(1) {
  transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.s007-hamburger.s007-active span:nth-child(2) {
  opacity: 0;
}

.s007-hamburger.s007-active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.5rem, -0.5rem);
}

/* Mobile Menu */
.s007-mobile-menu {
  position: fixed;
  top: var(--s007-header-height);
  left: -100%;
  width: 80%;
  height: calc(100vh - var(--s007-header-height));
  background: var(--s007-dark);
  border-right: 2px solid var(--s007-border);
  transition: var(--s007-transition);
  z-index: 999;
  overflow-y: auto;
}

.s007-mobile-menu.s007-active {
  left: 0;
}

.s007-menu-overlay {
  position: fixed;
  top: var(--s007-header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--s007-header-height));
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  visibility: hidden;
  transition: var(--s007-transition);
  z-index: 998;
}

.s007-menu-overlay.s007-active {
  opacity: 1;
  visibility: visible;
}

.s007-nav-list {
  list-style: none;
  padding: 2rem 0;
}

.s007-nav-item {
  margin: 0;
}

.s007-nav-link {
  display: flex;
  align-items: center;
  padding: 1.5rem 2rem;
  color: var(--s007-text);
  text-decoration: none;
  font-weight: 500;
  transition: var(--s007-transition);
  border-bottom: 1px solid var(--s007-border);
}

.s007-nav-link:hover {
  background: var(--s007-border);
  color: var(--s007-accent);
}

.s007-nav-link i {
  margin-right: 1rem;
  font-size: 1.6rem;
  width: 2rem;
}

/* Carousel/Banner */
.s007-carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--s007-radius);
  margin-bottom: 2rem;
  height: 20rem;
}

.s007-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.s007-slide.s007-active {
  opacity: 1;
}

.s007-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: pointer;
}

.s007-carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.7);
  color: var(--s007-accent);
  border: none;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.6rem;
  transition: var(--s007-transition);
}

.s007-carousel-prev {
  left: 1rem;
}

.s007-carousel-next {
  right: 1rem;
}

.s007-carousel-nav:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: translateY(-50%) scale(1.1);
}

/* Game Grid */
.s007-games-section {
  margin: 3rem 0;
}

.s007-games-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}

.s007-game-item {
  background: var(--s007-border);
  border-radius: var(--s007-radius);
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: var(--s007-transition);
  border: 2px solid transparent;
}

.s007-game-item:hover {
  transform: translateY(-3px);
  border-color: var(--s007-accent);
  box-shadow: 0 5px 15px var(--s007-shadow);
}

.s007-game-img {
  width: 100%;
  height: 6rem;
  object-fit: cover;
  border-radius: 0.5rem;
  margin-bottom: 0.8rem;
}

.s007-game-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--s007-text);
  line-height: 1.2;
}

/* Content Sections */
.s007-section {
  margin: 3rem 0;
  padding: 2rem;
  background: var(--s007-border);
  border-radius: var(--s007-radius);
  border: 1px solid #333;
}

.s007-feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.s007-feature-item {
  padding: 1.5rem;
  background: var(--s007-dark);
  border-radius: var(--s007-radius);
  border: 1px solid var(--s007-border);
}

.s007-feature-icon {
  font-size: 2.4rem;
  color: var(--s007-accent);
  margin-bottom: 1rem;
}

.s007-feature-title {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--s007-accent);
  margin-bottom: 0.8rem;
}

/* FAQ Styles */
.s007-faq-item {
  margin-bottom: 1rem;
  border: 1px solid var(--s007-border);
  border-radius: var(--s007-radius);
  overflow: hidden;
}

.s007-faq-question {
  padding: 1.5rem;
  background: var(--s007-border);
  cursor: pointer;
  transition: var(--s007-transition);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.s007-faq-question:hover {
  background: #3a3a3a;
}

.s007-faq-answer {
  padding: 0 1.5rem 1.5rem;
  background: var(--s007-dark);
  display: none;
}

.s007-faq-answer.s007-active {
  display: block;
}

/* RTP and Statistics */
.s007-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}

.s007-stat-item {
  text-align: center;
  padding: 1.5rem;
  background: var(--s007-dark);
  border-radius: var(--s007-radius);
  border: 1px solid var(--s007-border);
}

.s007-stat-value {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--s007-accent);
  display: block;
}

.s007-stat-label {
  font-size: 1.2rem;
  color: var(--s007-secondary);
  margin-top: 0.5rem;
}

/* Partners Section */
.s007-partners {
  margin: 3rem 0;
  text-align: center;
}

.s007-partners-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}

.s007-partner-img {
  width: 100%;
  height: 4rem;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.7);
  transition: var(--s007-transition);
}

.s007-partner-img:hover {
  filter: grayscale(0%) opacity(1);
}

/* Footer */
.s007-footer {
  background: var(--s007-dark);
  border-top: 2px solid var(--s007-border);
  padding: 2rem 0;
  margin-top: auto;
}

.s007-footer-content {
  text-align: center;
}

.s007-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.s007-footer-link {
  color: var(--s007-secondary);
  text-decoration: none;
  font-size: 1.2rem;
  transition: var(--s007-transition);
}

.s007-footer-link:hover {
  color: var(--s007-accent);
}

.s007-copyright {
  font-size: 1.1rem;
  color: var(--s007-secondary);
  margin-top: 1rem;
}

/* Mobile Bottom Navigation */
.s007-mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--s007-mobile-nav-height);
  background: linear-gradient(135deg, var(--s007-dark) 0%, #2a2a2a 100%);
  border-top: 2px solid var(--s007-border);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 1000;
  box-shadow: 0 -2px 10px var(--s007-shadow);
}

.s007-mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  height: 100%;
  text-decoration: none;
  color: var(--s007-secondary);
  transition: var(--s007-transition);
  position: relative;
  min-width: 4.4rem;
}

.s007-mobile-nav-item:hover,
.s007-mobile-nav-item.s007-active {
  color: var(--s007-accent);
  background: rgba(255, 228, 181, 0.1);
}

.s007-mobile-nav-icon {
  font-size: 2rem;
  margin-bottom: 0.2rem;
}

.s007-mobile-nav-text {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1;
}

/* Loading States */
.s007-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(26, 26, 26, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: var(--s007-transition);
}

.s007-loader.s007-active {
  opacity: 1;
  visibility: visible;
}

.s007-spinner {
  width: 4rem;
  height: 4rem;
  border: 0.3rem solid var(--s007-border);
  border-top: 0.3rem solid var(--s007-accent);
  border-radius: 50%;
  animation: s007-spin 1s linear infinite;
}

@keyframes s007-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Utility Classes */
.s007-hidden {
  display: none !important;
}

.s007-visible {
  display: block !important;
}

.s007-text-bold {
  font-weight: 700;
}

.s007-mt-1 { margin-top: 1rem; }
.s007-mt-2 { margin-top: 2rem; }
.s007-mt-3 { margin-top: 3rem; }
.s007-mb-1 { margin-bottom: 1rem; }
.s007-mb-2 { margin-bottom: 2rem; }
.s007-mb-3 { margin-bottom: 3rem; }

.s007-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.s007-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

/* Responsive Design */
@media (min-width: 48rem) {
  .s007-container {
    max-width: 42rem;
    padding: 0 1.5rem;
  }
  
  .s007-games-grid {
    grid-template-columns: repeat(5, 1fr);
  }
  
  .s007-partners-grid {
    grid-template-columns: repeat(10, 1fr);
  }
  
  .s007-mobile-nav {
    display: none;
  }
  
  .s007-wrapper {
    padding-bottom: 0;
  }
}

/* Touch and Hover Effects */
@media (hover: hover) {
  .s007-game-item:hover .s007-game-img {
    transform: scale(1.05);
  }
}

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

/* Focus styles for keyboard navigation */
.s007-btn:focus,
.s007-nav-link:focus,
.s007-mobile-nav-item:focus {
  outline: 2px solid var(--s007-accent);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .s007-header,
  .s007-mobile-nav,
  .s007-carousel,
  .s007-btn {
    display: none !important;
  }
}