/**
 * Beyblade X Game - Theme Stylesheet
 * CSS class prefix: ui8a-
 * Color palette: #FFA500 | #228B22 | #3CB371 | #FFEBCD | #141414
 * Root font: 62.5% for rem-based sizing
 */

/* === Base Reset & Variables === */
:root {
  --clr-primary: #FFA500;
  --clr-green-dark: #228B22;
  --clr-green-mid: #3CB371;
  --clr-cream: #FFEBCD;
  --clr-bg: #141414;
  --clr-bg-card: #1e1e1e;
  --clr-bg-elevated: #2a2a2a;
  --clr-text: #FFEBCD;
  --clr-text-muted: #b8a88a;
  --clr-border: #333333;
  --font-base: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --radius-sm: 0.8rem;
  --radius-md: 1.2rem;
  --radius-lg: 1.6rem;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.4);
  --shadow-elevated: 0 4px 20px rgba(255,165,0,0.15);
  --transition-fast: 0.2s ease;
  --transition-mid: 0.35s ease;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-base);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  max-width: 430px;
  margin: 0 auto;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--clr-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--clr-green-mid);
}

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

/* === Header === */
.ui8a-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  background: linear-gradient(180deg, #1a1a1a 0%, #141414 100%);
  border-bottom: 1px solid var(--clr-border);
  z-index: 1000;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ui8a-header-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.ui8a-header-logo img {
  width: 3.6rem;
  height: 3.6rem;
  border-radius: var(--radius-sm);
}

.ui8a-header-logo span {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--clr-primary);
  letter-spacing: -0.3px;
}

.ui8a-header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.ui8a-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-sm);
  font-size: 1.3rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.ui8a-btn-register {
  background: linear-gradient(135deg, var(--clr-primary), #e69500);
  color: var(--clr-bg);
  box-shadow: 0 2px 8px rgba(255,165,0,0.3);
}

.ui8a-btn-register:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255,165,0,0.5);
}

.ui8a-btn-login {
  background: transparent;
  color: var(--clr-primary);
  border: 1.5px solid var(--clr-primary);
}

.ui8a-btn-login:hover {
  background: rgba(255,165,0,0.1);
}

.ui8a-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--clr-cream);
  font-size: 2.2rem;
  cursor: pointer;
  padding: 0.4rem;
}

/* === Mobile Menu === */
.ui8a-mobile-menu {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100vh;
  background: #1a1a1a;
  z-index: 9999;
  transition: right var(--transition-mid);
  padding: 6rem 2rem 2rem;
  overflow-y: auto;
}

.ui8a-menu-active {
  right: 0 !important;
}

.ui8a-mobile-menu a {
  display: block;
  padding: 1.2rem 0;
  font-size: 1.5rem;
  color: var(--clr-cream);
  border-bottom: 1px solid var(--clr-border);
  transition: color var(--transition-fast);
}

.ui8a-mobile-menu a:hover {
  color: var(--clr-primary);
}

.ui8a-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 9998;
}

.ui8a-overlay-active {
  display: block;
}

.ui8a-menu-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--clr-cream);
  font-size: 2.4rem;
  cursor: pointer;
}

/* === Carousel === */
.ui8a-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-md);
  margin-top: 7rem;
  aspect-ratio: 16/8;
}

.ui8a-carousel-slide {
  display: none;
  width: 100%;
  height: 100%;
}

.ui8a-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ui8a-slide-active {
  display: block;
}

.ui8a-carousel-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.8rem;
}

.ui8a-carousel-dot {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: rgba(255,235,205,0.4);
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
}

.ui8a-dot-active {
  background: var(--clr-primary);
}

/* === Main Content === */
main {
  padding: 1.5rem;
  padding-bottom: 2rem;
}

.ui8a-section {
  margin: 2.5rem 0;
}

.ui8a-section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid var(--clr-green-dark);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.ui8a-section-title i {
  font-size: 2.2rem;
}

/* === Category Tabs === */
.ui8a-cat-tabs {
  display: flex;
  gap: 0.8rem;
  overflow-x: auto;
  padding-bottom: 0.8rem;
  margin-bottom: 1.5rem;
  scrollbar-width: none;
}

.ui8a-cat-tabs::-webkit-scrollbar {
  display: none;
}

.ui8a-cat-btn {
  flex-shrink: 0;
  padding: 0.6rem 1.4rem;
  border-radius: 2rem;
  font-size: 1.2rem;
  font-weight: 600;
  background: var(--clr-bg-card);
  color: var(--clr-text-muted);
  border: 1px solid var(--clr-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.ui8a-cat-btn:hover {
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}

.ui8a-cat-active {
  background: var(--clr-primary) !important;
  color: var(--clr-bg) !important;
  border-color: var(--clr-primary) !important;
}

/* === Game Grid === */
.ui8a-game-panel {
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.ui8a-panel-active {
  display: grid !important;
}

.ui8a-game-card {
  background: var(--clr-bg-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid var(--clr-border);
  text-align: center;
}

.ui8a-game-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-elevated);
  border-color: var(--clr-primary);
}

.ui8a-game-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.ui8a-game-card span {
  display: block;
  padding: 0.6rem 0.3rem;
  font-size: 1.1rem;
  color: var(--clr-cream);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* === Info Cards / Feature Blocks === */
.ui8a-info-card {
  background: var(--clr-bg-card);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--clr-border);
  transition: all var(--transition-fast);
}

.ui8a-info-card:hover {
  border-color: var(--clr-green-mid);
}

.ui8a-info-card h3 {
  font-size: 1.6rem;
  color: var(--clr-primary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.ui8a-info-card p {
  font-size: 1.3rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* === Feature Grid === */
.ui8a-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.ui8a-feature-item {
  background: var(--clr-bg-card);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  text-align: center;
  border: 1px solid var(--clr-border);
  transition: all var(--transition-fast);
}

.ui8a-feature-item:hover {
  border-color: var(--clr-primary);
  transform: translateY(-2px);
}

.ui8a-feature-item i {
  font-size: 2.8rem;
  color: var(--clr-primary);
  margin-bottom: 0.8rem;
}

.ui8a-feature-item h4 {
  font-size: 1.3rem;
  color: var(--clr-cream);
  margin-bottom: 0.4rem;
}

.ui8a-feature-item p {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
}

/* === CTA Banner === */
.ui8a-cta-banner {
  background: linear-gradient(135deg, var(--clr-green-dark), var(--clr-green-mid));
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  text-align: center;
  margin: 2rem 0;
}

.ui8a-cta-banner h2 {
  font-size: 2rem;
  color: var(--clr-cream);
  margin-bottom: 1rem;
}

.ui8a-cta-banner p {
  font-size: 1.3rem;
  color: rgba(255,235,205,0.85);
  margin-bottom: 1.5rem;
}

.ui8a-cta-btn {
  display: inline-block;
  padding: 1rem 3rem;
  background: var(--clr-primary);
  color: var(--clr-bg);
  font-size: 1.4rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
}

.ui8a-cta-btn:hover {
  background: #e69500;
  transform: scale(1.03);
}

/* === Footer === */
.ui8a-footer {
  background: #1a1a1a;
  padding: 3rem 1.5rem 2rem;
  border-top: 1px solid var(--clr-border);
}

.ui8a-footer-partners {
  text-align: center;
  margin-bottom: 2rem;
}

.ui8a-footer-partners h4 {
  font-size: 1.3rem;
  color: var(--clr-text-muted);
  margin-bottom: 1rem;
}

.ui8a-footer-partners img {
  height: 3rem;
  display: inline-block;
  margin: 0 0.6rem;
  opacity: 0.6;
}

.ui8a-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
  margin-bottom: 2rem;
}

.ui8a-footer-links a {
  font-size: 1.2rem;
  color: var(--clr-text-muted);
}

.ui8a-footer-links a:hover {
  color: var(--clr-primary);
}

.ui8a-footer-copy {
  text-align: center;
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  padding-top: 1.5rem;
  border-top: 1px solid var(--clr-border);
}

/* === Bottom Navigation === */
.ui8a-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 430px;
  height: 62px;
  background: linear-gradient(180deg, #1e1e1e, #141414);
  border-top: 2px solid var(--clr-green-dark);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
  padding: 0 0.3rem;
}

.ui8a-bottom-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  min-height: 58px;
  background: none;
  border: none;
  color: var(--clr-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0.4rem;
  border-radius: var(--radius-sm);
}

.ui8a-bottom-nav-btn:hover {
  color: var(--clr-primary);
}

.ui8a-bottom-nav-btn.active {
  color: var(--clr-primary);
}

.ui8a-bottom-nav-btn i {
  font-size: 2.2rem;
  margin-bottom: 0.2rem;
}

.ui8a-bottom-nav-btn span {
  font-size: 1rem;
  font-weight: 500;
}

/* === Back to Top === */
.ui8a-back-top {
  position: fixed;
  bottom: 8rem;
  right: 1.5rem;
  width: 4rem;
  height: 4rem;
  background: var(--clr-primary);
  color: var(--clr-bg);
  border: none;
  border-radius: 50%;
  font-size: 1.8rem;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  box-shadow: 0 2px 10px rgba(255,165,0,0.4);
  transition: all var(--transition-fast);
}

.ui8a-back-top:hover {
  transform: translateY(-2px);
}

/* === Reveal Animation === */
.ui8a-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.ui8a-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* === Help Page Styles === */
.ui8a-help-content {
  padding-top: 7rem;
}

.ui8a-help-content h1 {
  font-size: 2.4rem;
  color: var(--clr-primary);
  margin-bottom: 2rem;
}

.ui8a-help-content h2 {
  font-size: 1.8rem;
  color: var(--clr-green-mid);
  margin: 2rem 0 1rem;
}

.ui8a-help-content p {
  font-size: 1.3rem;
  color: var(--clr-text-muted);
  line-height: 1.8;
  margin-bottom: 1.2rem;
}

.ui8a-help-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.ui8a-help-content ul li {
  font-size: 1.3rem;
  color: var(--clr-text-muted);
  padding: 0.6rem 0;
  padding-left: 2rem;
  position: relative;
  line-height: 1.6;
}

.ui8a-help-content ul li::before {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--clr-green-mid);
  font-size: 1.1rem;
}

/* === FAQ Accordion === */
.ui8a-faq-item {
  background: var(--clr-bg-card);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  border: 1px solid var(--clr-border);
  overflow: hidden;
}

.ui8a-faq-question {
  padding: 1.4rem 1.6rem;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--clr-cream);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.ui8a-faq-question:hover {
  background: var(--clr-bg-elevated);
}

.ui8a-faq-answer {
  padding: 0 1.6rem 1.4rem;
  font-size: 1.3rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* === Internal Link Styling === */
.ui8a-internal-link {
  color: var(--clr-green-mid);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.ui8a-internal-link:hover {
  color: var(--clr-primary);
}

/* === Desktop Overrides === */
@media (min-width: 769px) {
  .ui8a-bottom-nav {
    display: none;
  }

  .ui8a-menu-toggle {
    display: block;
  }

  main {
    padding-bottom: 2rem;
  }
}

/* === Mobile Bottom Nav Clearance === */
@media (max-width: 768px) {
  main {
    padding-bottom: 80px;
  }

  .ui8a-footer {
    padding-bottom: 80px;
  }
}