/* ============================================================
   Sunjoint - theme.css
   All custom classes use prefix: w3c88-
   Palette: #FF4500 / #FF1493 / #0A0A0A / #CD5C5C / #FAFAD2
   ============================================================ */

:root {
  --w3c88-orange: #ff4500;
  --w3c88-pink: #ff1493;
  --w3c88-dark: #0a0a0a;
  --w3c88-rose: #cd5c5c;
  --w3c88-cream: #fafad2;
  --w3c88-bg: #0d0c0f;
  --w3c88-bg2: #15131a;
  --w3c88-card: #1c1924;
  --w3c88-card2: #221d2b;
  --w3c88-border: rgba(255, 69, 0, 0.18);
  --w3c88-text: #f7f3ee;
  --w3c88-muted: #b9aeb0;
  --w3c88-gold: #ffcf5c;
  --w3c88-grad: linear-gradient(135deg, #ff4500 0%, #ff1493 100%);
  --w3c88-grad2: linear-gradient(135deg, #cd5c5c 0%, #ff1493 60%, #ff4500 100%);
  --w3c88-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  --w3c88-max: 430px;
  --w3c88-radius: 14px;
}

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

html {
  font-size: 62.5%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Segoe UI", "Be Vietnam", "Roboto", system-ui, -apple-system,
    sans-serif;
  background: var(--w3c88-bg);
  color: var(--w3c88-text);
  line-height: 1.6;
  max-width: 100%;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--w3c88-cream);
  text-decoration: none;
  transition: color 0.18s ease;
}

a:hover {
  color: var(--w3c88-gold);
}

.w3c88-wrap {
  width: 100%;
  max-width: var(--w3c88-max);
  margin: 0 auto;
  padding: 0 14px;
}

main {
  padding-bottom: 0;
}

@media (max-width: 768px) {
  main {
    padding-bottom: 92px;
  }
}

/* ============ HEADER ============ */
.w3c88-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(180deg, #100d15 0%, #0a0a0a 100%);
  border-bottom: 1px solid var(--w3c88-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.w3c88-header.w3c88-scrolled {
  box-shadow: 0 6px 22px rgba(255, 69, 0, 0.18);
  background: linear-gradient(180deg, #1a1422 0%, #0d0c0f 100%);
}

.w3c88-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 14px;
  max-width: var(--w3c88-max);
  margin: 0 auto;
}

.w3c88-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--w3c88-text);
}

.w3c88-logo .w3c88-logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--w3c88-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  box-shadow: 0 4px 14px rgba(255, 20, 147, 0.35);
}

.w3c88-logo span {
  background: var(--w3c88-grad2);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.w3c88-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.w3c88-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 0;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.28rem;
  padding: 9px 16px;
  border-radius: 999px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}

.w3c88-btn:active {
  transform: scale(0.96);
}

.w3c88-btn-login {
  background: transparent;
  color: var(--w3c88-cream);
  border: 1px solid rgba(250, 250, 210, 0.4);
}

.w3c88-btn-login:hover {
  color: var(--w3c88-gold);
  border-color: var(--w3c88-gold);
}

.w3c88-btn-register {
  background: var(--w3c88-grad);
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 20, 147, 0.4);
}

.w3c88-btn-register:hover {
  filter: brightness(1.08);
  color: #fff;
}

.w3c88-menu-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--w3c88-text);
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.6rem;
}

/* Desktop nav */
.w3c88-desktop-nav {
  display: none;
  gap: 14px;
  flex-wrap: wrap;
  padding: 0 14px 8px;
  max-width: var(--w3c88-max);
  margin: 0 auto;
}

.w3c88-desktop-nav a {
  font-size: 1.2rem;
  color: var(--w3c88-muted);
  padding: 4px 6px;
}

@media (max-width: 768px) {
  .w3c88-menu-btn {
    display: inline-flex;
  }
  .w3c88-desktop-nav {
    display: none;
  }
}

@media (min-width: 769px) {
  .w3c88-desktop-nav {
    display: flex;
  }
}

/* ============ MOBILE MENU ============ */
.w3c88-mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(8, 7, 11, 0.96);
  z-index: 9999;
  padding: 70px 20px 30px;
  transform: translateX(100%);
  transition: transform 0.32s ease;
  overflow-y: auto;
}

.w3c88-mobile-menu.w3c88-open {
  transform: translateX(0);
}

.w3c88-mobile-menu a {
  display: block;
  padding: 14px 12px;
  font-size: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--w3c88-text);
}

.w3c88-mobile-menu a:hover {
  background: rgba(255, 69, 0, 0.08);
  color: var(--w3c88-gold);
  padding-left: 18px;
}

.w3c88-menu-close {
  position: absolute;
  top: 16px;
  right: 18px;
  background: transparent;
  border: 0;
  color: var(--w3c88-text);
  font-size: 2.2rem;
  cursor: pointer;
}

/* ============ HERO ============ */
.w3c88-hero {
  margin-top: 14px;
}

.w3c88-slider {
  position: relative;
  border-radius: var(--w3c88-radius);
  overflow: hidden;
  box-shadow: var(--w3c88-shadow);
}

.w3c88-slide {
  position: relative;
  display: none;
  min-height: 220px;
  padding: 22px 18px 24px;
  color: #fff;
}

.w3c88-slide-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  pointer-events: none;
}

.w3c88-slide > :not(.w3c88-slide-image) {
  position: relative;
  z-index: 1;
}

.w3c88-slide.w3c88-active {
  display: block;
  animation: w3c88fade 0.6s ease;
}

@keyframes w3c88fade {
  from {
    opacity: 0;
    transform: scale(1.02);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.w3c88-slide-1 {
  background: linear-gradient(135deg, #ff4500 0%, #ff1493 100%);
}

.w3c88-slide-2 {
  background: linear-gradient(135deg, #cd5c5c 0%, #0a0a0a 110%);
}

.w3c88-slide-3 {
  background: linear-gradient(135deg, #ff1493 0%, #0a0a0a 130%);
}

.w3c88-slide h2 {
  font-size: 2.4rem;
  margin-bottom: 8px;
  font-weight: 800;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.w3c88-slide p {
  font-size: 1.32rem;
  opacity: 0.95;
  margin-bottom: 14px;
  max-width: 92%;
}

.w3c88-slide .w3c88-btn {
  background: #fff;
  color: var(--w3c88-orange);
}

.w3c88-slider-dots {
  position: absolute;
  bottom: 10px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 6px;
}

.w3c88-slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  border: 0;
  padding: 0;
  transition: all 0.2s ease;
}

.w3c88-slider-dot.w3c88-active {
  background: #fff;
  width: 22px;
  border-radius: 6px;
}

/* ============ STATS BAR ============ */
.w3c88-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 16px 0;
}

.w3c88-stat {
  background: var(--w3c88-card);
  border: 1px solid var(--w3c88-border);
  border-radius: 12px;
  padding: 12px 8px;
  text-align: center;
}

.w3c88-stat-num {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--w3c88-gold);
  display: block;
}

.w3c88-stat-label {
  font-size: 1.1rem;
  color: var(--w3c88-muted);
  margin-top: 2px;
}

/* ============ SECTION ============ */
.w3c88-section {
  margin: 24px 0;
}

.w3c88-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  gap: 10px;
}

.w3c88-section-title {
  font-size: 1.9rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--w3c88-text);
}

.w3c88-section-title::before {
  content: "";
  width: 5px;
  height: 22px;
  border-radius: 3px;
  background: var(--w3c88-grad);
  display: inline-block;
}

.w3c88-section-more {
  font-size: 1.25rem;
  color: var(--w3c88-gold);
}

/* ============ CATEGORY TABS ============ */
.w3c88-cats {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin: 0 -14px 14px;
  padding-left: 14px;
  padding-right: 14px;
  scrollbar-width: none;
}

.w3c88-cats::-webkit-scrollbar {
  display: none;
}

.w3c88-cat-tab {
  flex: 0 0 auto;
  background: var(--w3c88-card);
  border: 1px solid var(--w3c88-border);
  color: var(--w3c88-muted);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 1.25rem;
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
}

.w3c88-cat-tab.w3c88-active {
  background: var(--w3c88-grad);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(255, 20, 147, 0.35);
}

.w3c88-cat-panel {
  display: none;
}

.w3c88-cat-panel.w3c88-active {
  display: block;
  animation: w3c88fade 0.4s ease;
}

/* ============ GAME GRID ============ */
.w3c88-games {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.w3c88-game {
  background: var(--w3c88-card);
  border: 1px solid var(--w3c88-border);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.w3c88-game:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255, 69, 0, 0.18);
}

.w3c88-game-img {
  aspect-ratio: 1 / 1;
  width: 100%;
  background: linear-gradient(135deg, #2a2030 0%, #191420 100%);
  object-fit: cover;
}

.w3c88-game-name {
  font-size: 1.15rem;
  padding: 6px 8px 8px;
  text-align: center;
  color: var(--w3c88-text);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.w3c88-game-play {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.w3c88-game:hover .w3c88-game-play {
  opacity: 1;
}

.w3c88-play-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--w3c88-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.8rem;
}

.w3c88-hot-tag {
  position: absolute;
  top: 6px;
  left: 6px;
  background: linear-gradient(135deg, #ff4500, #ff1493);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  z-index: 2;
}

/* ============ FEATURED BIG CARD ============ */
.w3c88-feature {
  background: linear-gradient(135deg, #1f1a28 0%, #15101c 100%);
  border: 1px solid var(--w3c88-border);
  border-radius: 16px;
  padding: 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  position: relative;
  overflow: hidden;
}

.w3c88-feature::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(255, 20, 147, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.w3c88-feature h3 {
  font-size: 1.8rem;
  color: var(--w3c88-text);
  margin-bottom: 6px;
}

.w3c88-feature p {
  font-size: 1.25rem;
  color: var(--w3c88-muted);
  margin-bottom: 12px;
}

@media (min-width: 480px) {
  .w3c88-feature {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
  }
  .w3c88-games {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============ PROMO BANNER ============ */
.w3c88-promo-banner {
  background: var(--w3c88-grad2);
  border-radius: 16px;
  padding: 22px 18px;
  margin: 24px 0;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.w3c88-promo-banner h3 {
  font-size: 2rem;
  margin-bottom: 6px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.w3c88-promo-banner p {
  font-size: 1.3rem;
  opacity: 0.95;
  margin-bottom: 14px;
}

.w3c88-promo-banner .w3c88-btn-light {
  background: #fff;
  color: var(--w3c88-pink);
  font-size: 1.4rem;
  padding: 10px 26px;
}

/* ============ SEO CONTENT ============ */
.w3c88-seo-text {
  background: var(--w3c88-card);
  border: 1px solid var(--w3c88-border);
  border-radius: 14px;
  padding: 18px 16px;
  font-size: 1.3rem;
  color: var(--w3c88-muted);
  line-height: 1.85;
}

.w3c88-seo-text h2 {
  font-size: 1.8rem;
  color: var(--w3c88-text);
  margin: 14px 0 8px;
  font-weight: 700;
}

.w3c88-seo-text h2:first-child {
  margin-top: 0;
}

.w3c88-seo-text h3 {
  font-size: 1.5rem;
  color: var(--w3c88-gold);
  margin: 12px 0 6px;
}

.w3c88-seo-text p {
  margin-bottom: 10px;
}

.w3c88-seo-text a {
  color: var(--w3c88-orange);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.w3c88-seo-text a:hover {
  color: var(--w3c88-gold);
}

.w3c88-seo-text ul,
.w3c88-seo-text ol {
  margin: 6px 0 12px 18px;
}

.w3c88-seo-text li {
  margin-bottom: 4px;
}

/* ============ FAQ ============ */
.w3c88-faq-item {
  background: var(--w3c88-card);
  border: 1px solid var(--w3c88-border);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
}

.w3c88-faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--w3c88-text);
  font-size: 1.35rem;
  font-weight: 700;
  padding: 14px 16px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.w3c88-faq-q .w3c88-toggle {
  color: var(--w3c88-orange);
  font-size: 1.6rem;
  transition: transform 0.2s ease;
}

.w3c88-faq-item.w3c88-open .w3c88-toggle {
  transform: rotate(45deg);
}

.w3c88-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--w3c88-muted);
  font-size: 1.25rem;
  padding: 0 16px;
}

.w3c88-faq-item.w3c88-open .w3c88-faq-a {
  max-height: 400px;
  padding: 0 16px 14px;
}

/* ============ FOOTER ============ */
.w3c88-footer {
  background: #07060a;
  border-top: 1px solid var(--w3c88-border);
  margin-top: 30px;
  padding: 28px 0 24px;
}

.w3c88-footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 18px;
}

.w3c88-footer-col h4 {
  font-size: 1.4rem;
  color: var(--w3c88-gold);
  margin-bottom: 10px;
}

.w3c88-footer-col a {
  display: block;
  font-size: 1.2rem;
  color: var(--w3c88-muted);
  padding: 4px 0;
}

.w3c88-footer-bottom {
  text-align: center;
  font-size: 1.1rem;
  color: var(--w3c88-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 14px;
}

.w3c88-footer-warn {
  font-size: 1.1rem;
  color: #8a7d7f;
  text-align: center;
  margin-top: 8px;
  line-height: 1.6;
}

/* ============ BOTTOM NAV (mobile) ============ */
.w3c88-bnav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 62px;
  background: linear-gradient(180deg, #15131a 0%, #0a0a0a 100%);
  border-top: 1px solid var(--w3c88-border);
  z-index: 1000;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.4);
}

.w3c88-bnav-inner {
  display: flex;
  justify-content: space-around;
  align-items: stretch;
  height: 100%;
  max-width: var(--w3c88-max);
  margin: 0 auto;
}

.w3c88-bnav-btn {
  flex: 1;
  min-width: 60px;
  min-height: 60px;
  background: transparent;
  border: 0;
  color: var(--w3c88-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 2px;
  position: relative;
  transition: color 0.2s ease;
}

.w3c88-bnav-btn .w3c88-bnav-icon {
  font-size: 2.2rem;
  line-height: 1;
}

.w3c88-bnav-btn .w3c88-bnav-label {
  font-size: 1rem;
  font-weight: 600;
}

.w3c88-bnav-btn.w3c88-promo {
  color: #fff;
}

.w3c88-bnav-btn.w3c88-promo .w3c88-bnav-icon {
  background: var(--w3c88-grad);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: -18px;
  color: #fff;
  font-size: 2rem;
  box-shadow: 0 4px 14px rgba(255, 20, 147, 0.45);
  border: 3px solid #0a0a0a;
}

.w3c88-bnav-btn.w3c88-current {
  color: var(--w3c88-gold);
}

@media (max-width: 768px) {
  .w3c88-bnav {
    display: block;
  }
}

@media (min-width: 769px) {
  .w3c88-bnav {
    display: none;
  }
}

/* ============ BACK TO TOP ============ */
.w3c88-backtop {
  position: fixed;
  right: 14px;
  bottom: 78px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--w3c88-grad);
  color: #fff;
  border: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.6rem;
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.w3c88-backtop.w3c88-show {
  opacity: 1;
  pointer-events: auto;
}

.w3c88-backtop:active {
  transform: scale(0.92);
}

/* ============ TEXT UTILS ============ */
.w3c88-text-link {
  color: var(--w3c88-orange);
  font-weight: 700;
  cursor: pointer;
}

.w3c88-text-link:hover {
  color: var(--w3c88-gold);
}

.w3c88-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 1.05rem;
  background: rgba(255, 69, 0, 0.15);
  color: var(--w3c88-orange);
  font-weight: 600;
}

/* Desktop-only widening */
@media (min-width: 769px) {
  .w3c88-wrap {
    max-width: 960px;
  }
  .w3c88-header-inner,
  .w3c88-desktop-nav {
    max-width: 960px;
  }
  .w3c88-games {
    grid-template-columns: repeat(6, 1fr);
  }
  .w3c88-feature {
    grid-template-columns: 1.2fr 1fr;
  }
}