/**
 * 88 Lucky PH - Universal CSS Layout
 * Version: 1.0.0
 * Mobile-first responsive design with prefix s7f8-
 * Color Palette: #F0F8FF | #191970 | #FF91A4 | #6495ED | #2C3E50
 */

/* ============================================
   CSS VARIABLES & ROOT SETTINGS
   ============================================ */
:root {
  /* Color System */
  --s7f8-primary: #191970;
  --s7f8-secondary: #6495ED;
  --s7f8-accent: #FF91A4;
  --s7f8-dark: #2C3E50;
  --s7f8-light: #F0F8FF;
  --s7f8-bg: #0f0f23;
  --s7f8-bg-secondary: #1a1a3e;
  --s7f8-text: #F0F8FF;
  --s7f8-text-secondary: #a8b5d1;
  --s7f8-border: rgba(100, 149, 237, 0.2);

  /* Spacing */
  --s7f8-spacing-xs: 0.5rem;
  --s7f8-spacing-sm: 1rem;
  --s7f8-spacing-md: 1.5rem;
  --s7f8-spacing-lg: 2rem;
  --s7f8-spacing-xl: 3rem;

  /* Typography */
  --s7f8-font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --s7f8-font-size-xs: 0.75rem;
  --s7f8-font-size-sm: 0.875rem;
  --s7f8-font-size-base: 1rem;
  --s7f8-font-size-lg: 1.125rem;
  --s7f8-font-size-xl: 1.25rem;
  --s7f8-font-size-2xl: 1.5rem;
  --s7f8-font-size-3xl: 2rem;

  /* Effects */
  --s7f8-shadow-sm: 0 1px 2px rgba(0,0,0,0.1);
  --s7f8-shadow-md: 0 4px 6px rgba(0,0,0,0.2);
  --s7f8-shadow-lg: 0 10px 15px rgba(0,0,0,0.3);
  --s7f8-radius-sm: 0.25rem;
  --s7f8-radius-md: 0.5rem;
  --s7f8-radius-lg: 1rem;

  /* Z-index layers */
  --s7f8-z-header: 1000;
  --s7f8-z-overlay: 9998;
  --s7f8-z-menu: 9999;
  --s7f8-z-bottom-nav: 1000;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--s7f8-font-primary);
  font-size: var(--s7f8-font-size-base);
  line-height: 1.6;
  color: var(--s7f8-text);
  background: var(--s7f8-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--s7f8-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--s7f8-accent);
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */
.s7f8-container {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  padding: 0 var(--s7f8-spacing-sm);
}

.s7f8-wrapper {
  width: 100%;
  overflow-x: hidden;
}

.s7f8-main {
  min-height: 100vh;
  padding-top: 70px;
  padding-bottom: 80px;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.s7f8-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: linear-gradient(135deg, var(--s7f8-primary) 0%, var(--s7f8-dark) 100%);
  box-shadow: var(--s7f8-shadow-md);
  z-index: var(--s7f8-z-header);
  transition: all 0.3s ease;
}

.s7f8-header-scrolled {
  box-shadow: var(--s7f8-shadow-lg);
  background: rgba(25, 25, 112, 0.95);
  backdrop-filter: blur(10px);
}

.s7f8-header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem var(--s7f8-spacing-sm);
  max-width: 430px;
  margin: 0 auto;
}

.s7f8-header-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--s7f8-light);
  font-weight: 700;
  font-size: var(--s7f8-font-size-lg);
}

.s7f8-header-logo img {
  width: 32px;
  height: 32px;
}

.s7f8-header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.s7f8-btn-header {
  padding: 0.5rem 1rem;
  font-size: var(--s7f8-font-size-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--s7f8-radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.s7f8-btn-register {
  background: var(--s7f8-accent);
  color: white;
}

.s7f8-btn-register:hover {
  background: #ff7a8f;
  transform: translateY(-2px);
}

.s7f8-btn-login {
  background: var(--s7f8-secondary);
  color: white;
}

.s7f8-btn-login:hover {
  background: #5683d9;
  transform: translateY(-2px);
}

.s7f8-hamburger {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.s7f8-hamburger span {
  display: block;
  width: 24px;
  height: 3px;
  background: var(--s7f8-light);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.s7f8-hamburger-active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.s7f8-hamburger-active span:nth-child(2) {
  opacity: 0;
}

.s7f8-hamburger-active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu */
.s7f8-mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--s7f8-bg-secondary);
  box-shadow: var(--s7f8-shadow-lg);
  z-index: var(--s7f8-z-menu);
  transition: right 0.3s ease;
  overflow-y: auto;
  padding: 5rem 2rem 2rem;
}

.s7f8-menu-active {
  right: 0;
}

.s7f8-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  z-index: var(--s7f8-z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.s7f8-overlay-active {
  opacity: 1;
  visibility: visible;
}

.s7f8-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.s7f8-nav-link {
  display: block;
  padding: 1rem 1.5rem;
  color: var(--s7f8-text);
  font-size: var(--s7f8-font-size-base);
  border-radius: var(--s7f8-radius-md);
  transition: all 0.3s ease;
}

.s7f8-nav-link:hover,
.s7f8-nav-active {
  background: var(--s7f8-primary);
  color: var(--s7f8-accent);
  transform: translateX(5px);
}

/* ============================================
   BOTTOM NAVIGATION
   ============================================ */
.s7f8-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: linear-gradient(135deg, var(--s7f8-primary) 0%, var(--s7f8-dark) 100%);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
  z-index: var(--s7f8-z-bottom-nav);
  padding: 0.5rem 0;
}

.s7f8-bottom-nav-container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  max-width: 430px;
  margin: 0 auto;
}

.s7f8-bottom-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  min-width: 60px;
  min-height: 60px;
  padding: 0.5rem;
  background: none;
  border: none;
  color: var(--s7f8-text-secondary);
  cursor: pointer;
  transition: all 0.3s ease;
}

.s7f8-bottom-nav-btn:hover,
.s7f8-bottom-nav-btn:active {
  color: var(--s7f8-accent);
  transform: translateY(-2px);
}

.s7f8-bottom-nav-btn i {
  font-size: 24px;
}

.s7f8-bottom-nav-btn span {
  font-size: var(--s7f8-font-size-xs);
  font-weight: 600;
}

.s7f8-bottom-nav-active {
  color: var(--s7f8-accent);
}

@media (min-width: 769px) {
  .s7f8-bottom-nav {
    display: none;
  }

  .s7f8-main {
    padding-bottom: var(--s7f8-spacing-lg);
  }
}

/* ============================================
   CAROUSEL / SLIDER
   ============================================ */
.s7f8-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: var(--s7f8-radius-lg);
  margin: var(--s7f8-spacing-md) 0;
}

.s7f8-carousel-container {
  position: relative;
  width: 100%;
  height: 200px;
}

.s7f8-carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease;
  cursor: pointer;
}

.s7f8-slide-active {
  opacity: 1;
}

.s7f8-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.s7f8-carousel-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 10;
}

.s7f8-carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.s7f8-dot-active {
  background: var(--s7f8-accent);
  width: 24px;
  border-radius: 5px;
}

/* ============================================
   BUTTONS & INTERACTIVE ELEMENTS
   ============================================ */
.s7f8-btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  font-size: var(--s7f8-font-size-base);
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--s7f8-radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  min-height: 44px;
}

.s7f8-btn-primary {
  background: linear-gradient(135deg, var(--s7f8-accent) 0%, #ff6b7f 100%);
  color: white;
  box-shadow: var(--s7f8-shadow-sm);
}

.s7f8-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--s7f8-shadow-md);
}

.s7f8-btn-secondary {
  background: var(--s7f8-secondary);
  color: white;
}

.s7f8-btn-secondary:hover {
  background: #5683d9;
}

.s7f8-btn-block {
  display: block;
  width: 100%;
}

/* ============================================
   GAME GRID & CARDS
   ============================================ */
.s7f8-game-section {
  margin: var(--s7f8-spacing-lg) 0;
}

.s7f8-section-title {
  font-size: var(--s7f8-font-size-2xl);
  font-weight: 700;
  color: var(--s7f8-light);
  margin-bottom: var(--s7f8-spacing-md);
  text-align: center;
}

.s7f8-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
  margin-bottom: var(--s7f8-spacing-md);
}

.s7f8-game-card {
  background: var(--s7f8-bg-secondary);
  border-radius: var(--s7f8-radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid var(--s7f8-border);
}

.s7f8-game-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(255, 145, 164, 0.3);
  border-color: var(--s7f8-accent);
}

.s7f8-game-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.s7f8-game-name {
  padding: 0.5rem;
  font-size: var(--s7f8-font-size-xs);
  text-align: center;
  color: var(--s7f8-text);
  font-weight: 600;
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */
.s7f8-section {
  margin: var(--s7f8-spacing-lg) 0;
  padding: var(--s7f8-spacing-md);
  background: var(--s7f8-bg-secondary);
  border-radius: var(--s7f8-radius-lg);
  border: 1px solid var(--s7f8-border);
}

.s7f8-section h2 {
  font-size: var(--s7f8-font-size-xl);
  color: var(--s7f8-accent);
  margin-bottom: var(--s7f8-spacing-sm);
}

.s7f8-section h3 {
  font-size: var(--s7f8-font-size-lg);
  color: var(--s7f8-secondary);
  margin-top: var(--s7f8-spacing-md);
  margin-bottom: var(--s7f8-spacing-xs);
}

.s7f8-section p {
  line-height: 1.7;
  color: var(--s7f8-text-secondary);
  margin-bottom: var(--s7f8-spacing-sm);
}

.s7f8-section ul,
.s7f8-section ol {
  margin-left: var(--s7f8-spacing-md);
  margin-bottom: var(--s7f8-spacing-sm);
}

.s7f8-section li {
  margin-bottom: 0.5rem;
  color: var(--s7f8-text-secondary);
}

/* ============================================
   FOOTER
   ============================================ */
.s7f8-footer {
  background: var(--s7f8-bg-secondary);
  padding: var(--s7f8-spacing-lg) var(--s7f8-spacing-sm);
  border-top: 2px solid var(--s7f8-border);
}

.s7f8-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: var(--s7f8-spacing-md);
}

.s7f8-footer-link {
  font-size: var(--s7f8-font-size-sm);
  color: var(--s7f8-text-secondary);
  padding: 0.3rem 0.5rem;
}

.s7f8-footer-partners {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  margin: var(--s7f8-spacing-md) 0;
  padding: var(--s7f8-spacing-md) 0;
  border-top: 1px solid var(--s7f8-border);
  border-bottom: 1px solid var(--s7f8-border);
}

.s7f8-partner-logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.s7f8-partner-logo:hover {
  opacity: 1;
}

.s7f8-footer-copyright {
  text-align: center;
  color: var(--s7f8-text-secondary);
  font-size: var(--s7f8-font-size-sm);
  margin-top: var(--s7f8-spacing-md);
}

/* ============================================
   UTILITIES
   ============================================ */
.s7f8-text-center {
  text-align: center;
}

.s7f8-text-primary {
  color: var(--s7f8-accent);
}

.s7f8-text-secondary {
  color: var(--s7f8-secondary);
}

.s7f8-mb-sm {
  margin-bottom: var(--s7f8-spacing-sm);
}

.s7f8-mb-md {
  margin-bottom: var(--s7f8-spacing-md);
}

.s7f8-mb-lg {
  margin-bottom: var(--s7f8-spacing-lg);
}

.s7f8-mt-md {
  margin-top: var(--s7f8-spacing-md);
}

.s7f8-animate {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.s7f8-animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 768px) {
  .s7f8-main {
    padding-bottom: 80px;
  }
}

@media (min-width: 769px) {
  .s7f8-container {
    padding: 0 var(--s7f8-spacing-md);
  }

  .s7f8-game-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}