/**
 * abc77 Layout Stylesheet
 * All classes use prefix "ui18-" for namespace isolation
 * Color palette: #7B68EE | #C9C9FF | #FFDFBA | #0A0A0A | #BAE1FF
 * Mobile-first design with max-width 430px
 */

/* CSS Variables */
:root {
  --ui18-primary: #7B68EE;
  --ui18-primary-light: #C9C9FF;
  --ui18-accent: #FFDFBA;
  --ui18-bg: #0A0A0A;
  --ui18-bg-light: #1a1a2e;
  --ui18-bg-card: #16213e;
  --ui18-text: #BAE1FF;
  --ui18-text-light: #C9C9FF;
  --ui18-text-white: #ffffff;
  --ui18-gold: #FFDFBA;
  --ui18-radius: 8px;
  --ui18-radius-lg: 12px;
  --ui18-shadow: 0 2px 8px rgba(123,104,238,0.3);
  --ui18-header-height: 56px;
  --ui18-bottom-height: 60px;
  font-size: 62.5%;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--ui18-bg);
  color: var(--ui18-text);
  line-height: 1.5rem;
  font-size: 1.4rem;
  max-width: 430px;
  margin: 0 auto;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ui18-primary);
  text-decoration: none;
}

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

/* Header */
.ui18-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  height: var(--ui18-header-height);
  background: linear-gradient(135deg, #0A0A0A 0%, #1a1a2e 100%);
  border-bottom: 1px solid var(--ui18-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.2rem;
  z-index: 1000;
}

.ui18-header-left {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.ui18-logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.ui18-site-name {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ui18-primary);
  white-space: nowrap;
}

.ui18-header-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.ui18-btn-register {
  background: linear-gradient(135deg, var(--ui18-primary) 0%, #9B59B6 100%);
  color: var(--ui18-text-white);
  border: none;
  padding: 0.5rem 1.2rem;
  border-radius: var(--ui18-radius);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.ui18-btn-register:hover {
  transform: scale(1.05);
  box-shadow: 0 0 12px rgba(123,104,238,0.5);
}

.ui18-btn-login {
  background: transparent;
  color: var(--ui18-primary-light);
  border: 1px solid var(--ui18-primary);
  padding: 0.5rem 1.2rem;
  border-radius: var(--ui18-radius);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.ui18-btn-login:hover {
  background: var(--ui18-primary);
  color: var(--ui18-text-white);
}

.ui18-menu-toggle {
  background: none;
  border: none;
  color: var(--ui18-text-light);
  font-size: 2rem;
  cursor: pointer;
  padding: 0.4rem;
  line-height: 1;
}

/* Mobile Menu */
.ui18-mobile-menu {
  display: none;
  position: fixed;
  top: var(--ui18-header-height);
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  background: var(--ui18-bg-light);
  border-bottom: 2px solid var(--ui18-primary);
  z-index: 9999;
  padding: 1rem 0;
}

.ui18-menu-active {
  display: block !important;
}

.ui18-mobile-menu a {
  display: block;
  padding: 1rem 1.6rem;
  color: var(--ui18-text-light);
  font-size: 1.4rem;
  transition: background 0.2s, color 0.2s;
  border-bottom: 1px solid rgba(123,104,238,0.1);
}

.ui18-mobile-menu a:hover {
  background: rgba(123,104,238,0.15);
  color: var(--ui18-primary);
}

/* Main Content */
.ui18-main {
  padding-top: calc(var(--ui18-header-height) + 0.8rem);
  min-height: 100vh;
}

/* Carousel */
.ui18-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 0 0 var(--ui18-radius-lg) var(--ui18-radius-lg);
}

.ui18-carousel-slide {
  display: none;
  width: 100%;
  cursor: pointer;
}

.ui18-carousel-slide img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.ui18-carousel-dots {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
}

.ui18-carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: background 0.3s;
}

.ui18-dot-active {
  background: var(--ui18-primary) !important;
  width: 20px;
  border-radius: 4px;
}

/* Section */
.ui18-section {
  padding: 1.6rem;
}

.ui18-section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--ui18-text-white);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--ui18-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.ui18-section-title i,
.ui18-section-title .material-icons {
  color: var(--ui18-primary);
  font-size: 2rem;
}

/* Game Grid */
.ui18-game-category-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ui18-gold);
  margin: 1.2rem 0 0.8rem;
  padding-left: 0.4rem;
  border-left: 3px solid var(--ui18-primary);
}

.ui18-game-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}

.ui18-game-item {
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s;
}

.ui18-game-item:hover {
  transform: scale(1.05);
}

.ui18-game-icon {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--ui18-radius);
  object-fit: cover;
  border: 1px solid rgba(123,104,238,0.2);
}

.ui18-game-name {
  font-size: 1rem;
  color: var(--ui18-text-light);
  margin-top: 0.3rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Content Cards */
.ui18-card {
  background: var(--ui18-bg-card);
  border-radius: var(--ui18-radius-lg);
  padding: 1.4rem;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(123,104,238,0.15);
}

.ui18-card h2,
.ui18-card h3 {
  color: var(--ui18-text-white);
  margin-bottom: 0.8rem;
}

.ui18-card p {
  color: var(--ui18-text);
  line-height: 1.6;
  margin-bottom: 0.8rem;
}

.ui18-card ul {
  padding-left: 1.6rem;
  color: var(--ui18-text);
}

.ui18-card li {
  margin-bottom: 0.4rem;
  line-height: 1.5;
}

/* Promo Links */
.ui18-promo-link {
  color: var(--ui18-primary);
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s;
  text-decoration: underline;
}

.ui18-promo-link:hover {
  color: var(--ui18-gold);
}

.ui18-promo-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--ui18-primary) 0%, #9B59B6 100%);
  color: var(--ui18-text-white);
  padding: 0.8rem 2rem;
  border-radius: var(--ui18-radius);
  font-size: 1.4rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.ui18-promo-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 0 16px rgba(123,104,238,0.4);
}

/* Footer */
.ui18-footer {
  background: var(--ui18-bg-light);
  padding: 2rem 1.6rem;
  margin-top: 2rem;
  border-top: 1px solid var(--ui18-primary);
}

.ui18-footer-brand {
  color: var(--ui18-text-light);
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 1.2rem;
}

.ui18-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.ui18-footer-links a {
  color: var(--ui18-primary-light);
  font-size: 1.2rem;
  padding: 0.3rem 0.8rem;
  border: 1px solid rgba(123,104,238,0.3);
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
}

.ui18-footer-links a:hover {
  background: var(--ui18-primary);
  color: var(--ui18-text-white);
}

.ui18-footer-promo {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.ui18-footer-promo button {
  flex: 1;
  min-width: 120px;
  background: linear-gradient(135deg, var(--ui18-primary) 0%, #9B59B6 100%);
  color: var(--ui18-text-white);
  border: none;
  padding: 0.7rem;
  border-radius: var(--ui18-radius);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s;
}

.ui18-footer-promo button:hover {
  transform: scale(1.02);
}

.ui18-copyright {
  color: rgba(201,201,255,0.5);
  font-size: 1.1rem;
  text-align: center;
  padding-top: 1rem;
  border-top: 1px solid rgba(123,104,238,0.15);
}

/* Bottom Navigation */
.ui18-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  height: var(--ui18-bottom-height);
  background: linear-gradient(180deg, #1a1a2e 0%, #0A0A0A 100%);
  border-top: 1px solid var(--ui18-primary);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
}

.ui18-bottom-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 50px;
  background: none;
  border: none;
  color: var(--ui18-text-light);
  cursor: pointer;
  transition: color 0.2s, transform 0.2s;
  padding: 0.3rem;
}

.ui18-bottom-nav-btn:hover,
.ui18-btn-active {
  color: var(--ui18-primary);
  transform: scale(1.1);
}

.ui18-btn-active {
  color: var(--ui18-primary) !important;
}

.ui18-bottom-nav-btn i,
.ui18-bottom-nav-btn .material-icons {
  font-size: 22px;
  margin-bottom: 2px;
}

.ui18-bottom-nav-btn span {
  font-size: 1rem;
  line-height: 1;
}

/* Utility */
.ui18-text-center { text-align: center; }
.ui18-text-gold { color: var(--ui18-gold); }
.ui18-text-primary { color: var(--ui18-primary); }
.ui18-text-white { color: var(--ui18-text-white); }
.ui18-mt-1 { margin-top: 0.8rem; }
.ui18-mt-2 { margin-top: 1.6rem; }
.ui18-mb-1 { margin-bottom: 0.8rem; }
.ui18-mb-2 { margin-bottom: 1.6rem; }
.ui18-hidden { display: none; }

/* Responsive */
@media (min-width: 769px) {
  .ui18-bottom-nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .ui18-main {
    padding-bottom: calc(var(--ui18-bottom-height) + 1rem);
  }
}

/* Animation */
@keyframes ui18-fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.ui18-fade-in {
  animation: ui18-fadeIn 0.4s ease-out;
}

/* RTP Bar */
.ui18-rtp-bar {
  height: 8px;
  background: rgba(123,104,238,0.2);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 0.4rem;
}

.ui18-rtp-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--ui18-primary) 0%, var(--ui18-gold) 100%);
  border-radius: 4px;
  transition: width 0.6s ease;
}

/* Winner list */
.ui18-winner-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(123,104,238,0.1);
  font-size: 1.2rem;
}

.ui18-winner-name {
  color: var(--ui18-text-light);
}

.ui18-winner-amount {
  color: var(--ui18-gold);
  font-weight: 600;
}

/* Testimonial */
.ui18-testimonial {
  background: rgba(123,104,238,0.08);
  border-radius: var(--ui18-radius);
  padding: 1rem;
  margin-bottom: 0.8rem;
  border-left: 3px solid var(--ui18-primary);
}

.ui18-testimonial-text {
  color: var(--ui18-text);
  font-style: italic;
  margin-bottom: 0.4rem;
}

.ui18-testimonial-author {
  color: var(--ui18-primary-light);
  font-size: 1.1rem;
}

/* Payment Methods */
.ui18-payment-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.ui18-payment-item {
  background: var(--ui18-bg-card);
  border: 1px solid rgba(123,104,238,0.2);
  border-radius: var(--ui18-radius);
  padding: 0.5rem 1rem;
  font-size: 1.2rem;
  color: var(--ui18-text-light);
}

/* Help Page Styles */
.ui18-help-content {
  padding: 1.6rem;
}

.ui18-help-content h1 {
  font-size: 2rem;
  color: var(--ui18-text-white);
  margin-bottom: 1.2rem;
}

.ui18-help-content h2 {
  font-size: 1.6rem;
  color: var(--ui18-primary);
  margin: 1.4rem 0 0.8rem;
}

.ui18-help-content h3 {
  font-size: 1.4rem;
  color: var(--ui18-gold);
  margin: 1rem 0 0.6rem;
}

.ui18-help-content p {
  color: var(--ui18-text);
  line-height: 1.7;
  margin-bottom: 0.8rem;
}

.ui18-help-content ul {
  padding-left: 1.6rem;
  color: var(--ui18-text);
  margin-bottom: 0.8rem;
}

.ui18-help-content li {
  margin-bottom: 0.4rem;
  line-height: 1.5;
}

.ui18-faq-item {
  background: var(--ui18-bg-card);
  border-radius: var(--ui18-radius);
  padding: 1rem;
  margin-bottom: 0.8rem;
  border: 1px solid rgba(123,104,238,0.15);
}

.ui18-faq-q {
  color: var(--ui18-gold);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.ui18-faq-a {
  color: var(--ui18-text);
  line-height: 1.5;
}

/* App Download CTA */
.ui18-app-cta {
  background: linear-gradient(135deg, var(--ui18-bg-card) 0%, rgba(123,104,238,0.15) 100%);
  border: 1px solid var(--ui18-primary);
  border-radius: var(--ui18-radius-lg);
  padding: 1.4rem;
  text-align: center;
}

.ui18-app-cta h3 {
  color: var(--ui18-text-white);
  margin-bottom: 0.8rem;
}

.ui18-app-cta p {
  color: var(--ui18-text-light);
  margin-bottom: 1rem;
}