/**
 * km88 Theme CSS
 * Prefix: sef7-
 * Version: 1.0.0
 * Mobile-first responsive design
 */

/* CSS Reset and Base Styles */
*, *::before, *::after {
  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: #ffffff;
  background-color: #1a1a2e;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* CSS Variables */
:root {
  --sef7-primary: #00FF00;
  --sef7-secondary: #32CD32;
  --sef7-dark: #2C3E50;
  --sef7-darker: #1a1a2e;
  --sef7-light: #ecf0f1;
  --sef7-text: #ffffff;
  --sef7-text-muted: #bdc3c7;
  --sef7-border: #34495e;
  --sef7-gradient: linear-gradient(135deg, #00FF00 0%, #32CD32 100%);
  --sef7-shadow: 0 4px 6px rgba(0, 255, 0, 0.1);
  --sef7-shadow-lg: 0 10px 25px rgba(0, 255, 0, 0.2);
}

/* Container */
.sef7-container {
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.sef7-wrapper {
  width: 100%;
  overflow-x: hidden;
}

/* Grid System */
.sef7-grid {
  display: grid;
  gap: 1rem;
}

.sef7-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.sef7-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.sef7-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Header */
.sef7-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--sef7-border);
  transition: all 0.3s ease;
}

.sef7-header-scrolled {
  background: rgba(26, 26, 46, 0.98);
  box-shadow: var(--sef7-shadow);
}

.sef7-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: 430px;
  margin: 0 auto;
}

.sef7-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: var(--sef7-text);
}

.sef7-logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
}

.sef7-logo-text {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--sef7-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sef7-header-buttons {
  display: flex;
  gap: 0.8rem;
}

.sef7-btn {
  padding: 0.6rem 1.2rem;
  font-size: 1.3rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 70px;
  min-height: 44px;
}

.sef7-btn-primary {
  background: var(--sef7-gradient);
  color: var(--sef7-dark);
  box-shadow: var(--sef7-shadow);
}

.sef7-btn-primary:hover,
.sef7-btn-primary:active {
  transform: translateY(-2px);
  box-shadow: var(--sef7-shadow-lg);
}

.sef7btn-secondary {
  background: transparent;
  color: var(--sef7-primary);
  border: 2px solid var(--sef7-primary);
}

.sef7btn-secondary:hover,
.sef7btn-secondary:active {
  background: var(--sef7-primary);
  color: var(--sef7-dark);
}

.sef7-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.sef7-menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--sef7-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Mobile Menu */
.sef7-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background: var(--sef7-darker);
  z-index: 9999;
  transition: right 0.3s ease;
  overflow-y: auto;
  border-left: 1px solid var(--sef7-border);
}

.sef7-menu-open {
  right: 0;
}

.sef7-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.sef7-menu-open + .sef7-menu-overlay {
  opacity: 1;
  visibility: visible;
}

.sef7-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--sef7-border);
}

.sef7-menu-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--sef7-primary);
}

.sef7-menu-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--sef7-text);
  font-size: 2rem;
  cursor: pointer;
}

.sef7-menu-nav {
  padding: 1rem 0;
}

.sef7-menu-link {
  display: block;
  padding: 1.2rem 1.5rem;
  color: var(--sef7-text);
  text-decoration: none;
  font-size: 1.5rem;
  border-left: 3px solid transparent;
  transition: all 0.3s ease;
}

.sef7-menu-link:hover {
  background: rgba(0, 255, 0, 0.1);
  border-left-color: var(--sef7-primary);
  color: var(--sef7-primary);
}

/* Main Content */
.sef7-main {
  padding-top: 80px;
  padding-bottom: 80px;
  min-height: 100vh;
}

@media (min-width: 769px) {
  .sef7-main {
    padding-bottom: 40px;
  }
}

/* Carousel */
.sef7-carousel {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  margin-bottom: 2rem;
  border-radius: 12px;
}

.sef7-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease;
  cursor: pointer;
}

.sef7-slide-active {
  opacity: 1;
}

.sef7-carousel-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Section */
.sef7-section {
  margin-bottom: 2.5rem;
}

.sef7-section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--sef7-primary);
  margin-bottom: 1.5rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sef7-section-subtitle {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--sef7-secondary);
  margin-bottom: 1rem;
}

/* Cards */
.sef7-card {
  background: rgba(44, 62, 80, 0.5);
  border: 1px solid var(--sef7-border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.sef7-card:hover {
  border-color: var(--sef7-primary);
  box-shadow: var(--sef7-shadow);
  transform: translateY(-2px);
}

/* Game Grid */
.sef7-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.sef7-game-item {
  display: block;
  text-decoration: none;
  color: var(--sef7-text);
  transition: all 0.3s ease;
  cursor: pointer;
}

.sef7-game-item:hover {
  transform: scale(1.05);
}

.sef7-game-icon {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 0.5rem;
  border: 2px solid var(--sef7-border);
  transition: all 0.3s ease;
}

.sef7-game-item:hover .sef7-game-icon {
  border-color: var(--sef7-primary);
  box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
}

.sef7-game-name {
  font-size: 1.1rem;
  text-align: center;
  color: var(--sef7-text);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* Category Badge */
.sef7-category-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--sef7-gradient);
  color: var(--sef7-dark);
  font-size: 1.2rem;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

/* Promotional Links */
.sef7-promo-link {
  color: var(--sef7-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
}

.sef7-promo-link:hover {
  color: var(--sef7-secondary);
  text-decoration: underline;
}

.sef7-promo-link-inline {
  display: inline;
  color: var(--sef7-primary);
  font-weight: 700;
  cursor: pointer;
}

/* Footer */
.sef7-footer {
  background: var(--sef7-dark);
  border-top: 1px solid var(--sef7-border);
  padding: 2rem 0 100px 0;
}

@media (min-width: 769px) {
  .sef7-footer {
    padding-bottom: 2rem;
  }
}

.sef7-footer-content {
  max-width: 430px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.sef7-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  justify-content: center;
}

.sef7-footer-link {
  color: var(--sef7-text-muted);
  text-decoration: none;
  font-size: 1.4rem;
  transition: color 0.3s ease;
}

.sef7-footer-link:hover {
  color: var(--sef7-primary);
}

.sef7-partners {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.sef7-partner-icon {
  width: 50px;
  height: 30px;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.sef7-partner-icon:hover {
  opacity: 1;
}

.sef7-copyright {
  text-align: center;
  color: var(--sef7-text-muted);
  font-size: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--sef7-border);
}

/* Bottom Navigation (Mobile) */
.sef7-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 26, 46, 0.98);
  backdrop-filter: blur(10px);
  border-top: 2px solid var(--sef7-border);
  height: 60px;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

@media (min-width: 769px) {
  .sef7-bottom-nav {
    display: none;
  }
}

.sef7-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--sef7-text-muted);
  min-width: 60px;
  min-height: 60px;
  transition: all 0.3s ease;
  cursor: pointer;
  padding: 0.5rem;
}

.sef7-nav-item:hover {
  color: var(--sef7-primary);
  transform: scale(1.1);
}

.sef7-nav-item.sef7-nav-active {
  color: var(--sef7-primary);
}

.sef7-nav-icon {
  font-size: 24px;
  margin-bottom: 4px;
}

.sef7-nav-text {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Text Styles */
.sef7-text-highlight {
  color: var(--sef7-primary);
  font-weight: 600;
}

.sef7-text-muted {
  color: var(--sef7-text-muted);
}

/* Lists */
.sef7-list {
  list-style: none;
  padding: 0;
}

.sef7-list-item {
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--sef7-border);
}

.sef7-list-item:last-child {
  border-bottom: none;
}

/* FAQ Styles */
.sef7-faq-item {
  margin-bottom: 1rem;
}

.sef7-faq-question {
  font-weight: 600;
  color: var(--sef7-primary);
  margin-bottom: 0.5rem;
}

.sef7-faq-answer {
  color: var(--sef7-text-muted);
  line-height: 1.6;
}

/* Utility Classes */
.sef7-text-center {
  text-align: center;
}

.sef7-mt-1 {
  margin-top: 1rem;
}

.sef7-mt-2 {
  margin-top: 2rem;
}

.sef7-mb-1 {
  margin-bottom: 1rem;
}

.sef7-mb-2 {
  margin-bottom: 2rem;
}

.sef7-p-1 {
  padding: 1rem;
}

.sef7-p-2 {
  padding: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
  .sef7-header-buttons .sef7-btn {
    padding: 0.5rem 1rem;
    font-size: 1.2rem;
    min-width: 60px;
  }
}

@media (min-width: 769px) {
  .sef7-menu-toggle {
    display: none;
  }
}

/* Animation */
@keyframes sef7pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.sef7-animate-pulse {
  animation: sef7pulse 2s infinite;
}

/* Icon Mix - Supporting multiple icon libraries */
.sef7-icon {
  display: inline-block;
  vertical-align: middle;
}