/* ========================================================
   AOV STORE - LIÊN QUÂN MOBILE GAMING DESIGN SYSTEM
   Theme: High-Tech Cyberpunk Dark Gaming with Neon Accents
======================================================== */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,600;1,700&display=swap');

:root {
  /* Color Palette */
  --bg-darkest: #07090e;
  --bg-dark: #0c1017;
  --bg-card: rgba(16, 22, 36, 0.82);
  --bg-card-hover: rgba(24, 33, 54, 0.95);
  --bg-surface: #131a29;
  --bg-surface-elevated: #1a2337;

  /* Neon Accents */
  --neon-cyan: #00f2fe;
  --neon-blue: #3b82f6;
  --neon-purple: #8b5cf6;
  --neon-pink: #ec4899;
  --neon-gold: #ffb703;
  --neon-amber: #f59e0b;
  --neon-red: #ef4444;
  --neon-green: #10b981;

  /* Text Colors */
  --text-white: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Borders & Glows */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-cyan: rgba(0, 242, 254, 0.35);
  --border-gold: rgba(255, 183, 3, 0.35);
  --border-purple: rgba(139, 92, 246, 0.35);
  
  --glow-cyan: 0 0 25px rgba(0, 242, 254, 0.35);
  --glow-gold: 0 0 25px rgba(255, 183, 3, 0.35);
  --glow-purple: 0 0 30px rgba(139, 92, 246, 0.4);
  --glow-red: 0 0 20px rgba(239, 68, 68, 0.35);

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  --grad-fire: linear-gradient(135deg, #ff0844 0%, #ffb199 100%);
  --grad-gold: linear-gradient(135deg, #ffe259 0%, #ffa751 100%);
  --grad-purple: linear-gradient(135deg, #c471ed 0%, #f64f59 100%);
  --grad-dark-card: linear-gradient(180deg, rgba(23, 32, 51, 0.7) 0%, rgba(13, 18, 29, 0.9) 100%);

  /* Typography - 100% Native Vietnamese Support */
  --font-main: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Transitions */
  --trans-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --trans-bounce: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: dark;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-darkest);
  color: var(--text-white);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(139, 92, 246, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 65%, rgba(0, 242, 254, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(255, 183, 3, 0.06) 0%, transparent 50%),
    linear-gradient(to bottom, #07090e, #0c1017);
  background-attachment: fixed;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 9px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darkest);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(to bottom, var(--neon-cyan), var(--neon-purple));
  border-radius: var(--radius-pill);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--trans-fast);
}

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

button, input, select {
  font-family: inherit;
  border: none;
  outline: none;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========================================================
   NAVIGATION & HEADER
======================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 14, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--trans-smooth);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #00f2fe, #8b5cf6);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-cyan);
  position: relative;
  overflow: hidden;
}

.brand-icon svg {
  width: 26px;
  height: 26px;
  fill: #fff;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.4));
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  line-height: 1.1;
  background: linear-gradient(90deg, #fff 0%, var(--neon-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text span {
  font-size: 0.72rem;
  color: var(--neon-gold);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: #fff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 10px;
  right: 10px;
  height: 2px;
  background: var(--neon-cyan);
  box-shadow: var(--glow-cyan);
  border-radius: var(--radius-pill);
}

.nav-badge-hot {
  font-size: 0.65rem;
  font-weight: 800;
  color: #fff;
  background: var(--grad-fire);
  padding: 2px 6px;
  border-radius: 6px;
  text-transform: uppercase;
  animation: pulse-badge 1.8s infinite;
}

/* Header User Widget */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.wallet-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 183, 3, 0.1);
  border: 1px solid var(--border-gold);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--trans-smooth);
}

.wallet-badge:hover {
  background: rgba(255, 183, 3, 0.2);
  box-shadow: var(--glow-gold);
  transform: translateY(-1px);
}

.wallet-icon {
  width: 22px;
  height: 22px;
  color: var(--neon-gold);
}

.wallet-info {
  display: flex;
  flex-direction: column;
}

.wallet-info .label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.wallet-info .amount {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--neon-gold);
  line-height: 1;
}

.btn-recharge-quick {
  background: var(--grad-primary);
  color: #07090e;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--glow-cyan);
  transition: var(--trans-bounce);
}

.btn-recharge-quick:hover {
  transform: scale(1.05);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.6);
}

.btn-auth {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--trans-fast);
}

.btn-auth:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-auth-primary {
  background: var(--grad-primary);
  color: #07090e;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--trans-bounce);
  box-shadow: var(--glow-cyan);
}

.btn-auth-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 25px rgba(0, 242, 254, 0.5);
}

/* User Profile Badge in Header */
.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(19, 26, 41, 0.8);
  border: 1px solid var(--border-subtle);
  padding: 4px 10px 4px 4px;
  border-radius: var(--radius-pill);
  position: relative;
}

.user-avatar-circle {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: #fff;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
}

.user-meta-name {
  font-weight: 700;
  font-size: 0.88rem;
  color: #fff;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-logout-icon {
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--trans-fast);
}

.btn-logout-icon:hover {
  color: var(--neon-red);
  transform: scale(1.1);
}

/* Auth Modal Tabs */
.auth-tabs-nav {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
}

.auth-tab-btn {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 0;
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--trans-fast);
}

.auth-tab-btn.active {
  color: var(--neon-cyan);
  border-bottom-color: var(--neon-cyan);
}

.auth-tab-panel {
  display: none;
}

.auth-tab-panel.active {
  display: block;
}

.promo-gift-badge {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1.2rem;
  font-size: 0.84rem;
  color: #fff;
}

.promo-gift-badge strong {
  color: var(--neon-green);
}

.btn-menu-toggle {
  display: none;
  background: none;
  color: #fff;
  cursor: pointer;
  padding: 6px;
}

/* ========================================================
   LIVE MARQUEE TICKER
======================================================== */
.ticker-wrap {
  width: 100%;
  background: rgba(13, 17, 26, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
  height: 38px;
  display: flex;
  align-items: center;
}

.ticker-label {
  flex-shrink: 0;
  background: linear-gradient(90deg, #ef4444, #f97316);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0 14px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  z-index: 2;
  box-shadow: 2px 0 10px rgba(0,0,0,0.5);
}

.ticker-content {
  display: flex;
  white-space: nowrap;
  animation: ticker-anim 28s linear infinite;
  gap: 3rem;
  padding-left: 2rem;
}

.ticker-item {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.ticker-item strong {
  color: #fff;
}

.ticker-item .highlight-green {
  color: var(--neon-green);
  font-weight: 700;
}

.ticker-item .highlight-gold {
  color: var(--neon-gold);
  font-weight: 700;
}

@keyframes ticker-anim {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ========================================================
   HERO BANNER SECTION
======================================================== */
.hero-section {
  position: relative;
  padding: 3.5rem 0 3rem;
  overflow: hidden;
}

.hero-banner-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  min-height: 440px;
  display: flex;
  align-items: center;
}

.hero-bg-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
  filter: brightness(0.65) contrast(1.1);
  transition: transform 10s ease;
}

.hero-banner-card:hover .hero-bg-img {
  transform: scale(1.03);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg, 
    rgba(7, 9, 14, 0.95) 0%, 
    rgba(7, 9, 14, 0.82) 45%, 
    rgba(7, 9, 14, 0.3) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 3.5rem;
  max-width: 680px;
}

.hero-badge-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid var(--border-cyan);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--neon-cyan);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1.2rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--neon-cyan);
  border-radius: 50%;
  box-shadow: var(--glow-cyan);
  animation: pulse-glow 1.5s infinite;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
}

.hero-title .glow-cyan {
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
}

.hero-title .glow-gold {
  color: var(--neon-gold);
  text-shadow: var(--glow-gold);
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.2rem;
}

.btn-primary-gaming {
  background: var(--grad-primary);
  color: #07090e;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--glow-cyan);
  transition: var(--trans-bounce);
}

.btn-primary-gaming:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.7);
}

.btn-secondary-gaming {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(8px);
  transition: var(--trans-fast);
}

.btn-secondary-gaming:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--neon-purple);
  box-shadow: var(--glow-purple);
  transform: translateY(-2px);
}

.hero-stats-row {
  display: flex;
  gap: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
}

.hero-stat-item .num {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.hero-stat-item .text {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

/* ========================================================
   FEATURED CATEGORIES
======================================================== */
.categories-section {
  padding: 2rem 0 3rem;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  border-left: 4px solid var(--neon-cyan);
  padding-left: 1rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.1;
}

.section-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: var(--trans-smooth);
  cursor: pointer;
  backdrop-filter: blur(10px);
}

.cat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--card-accent, var(--neon-cyan)), transparent);
  opacity: 0;
  transition: var(--trans-smooth);
}

.cat-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--card-accent, var(--border-cyan));
  transform: translateY(-5px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 242, 254, 0.15);
}

.cat-card:hover::before {
  opacity: 1;
}

.cat-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  color: var(--card-accent, var(--neon-cyan));
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--trans-bounce);
}

.cat-card:hover .cat-icon-wrap {
  transform: scale(1.1) rotate(-4deg);
  background: var(--card-accent-bg, rgba(0, 242, 254, 0.15));
}

.cat-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.cat-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  flex-grow: 1;
}

.cat-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 0.8rem;
}

.cat-price {
  font-size: 0.8rem;
  color: var(--neon-gold);
  font-weight: 700;
}

.cat-btn {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--neon-cyan);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Card custom accent colors */
.cat-card.accent-vip {
  --card-accent: var(--neon-cyan);
  --card-accent-bg: rgba(0, 242, 254, 0.2);
}
.cat-card.accent-random {
  --card-accent: var(--neon-gold);
  --card-accent-bg: rgba(255, 183, 3, 0.2);
}
.cat-card.accent-wheel {
  --card-accent: var(--neon-purple);
  --card-accent-bg: rgba(139, 92, 246, 0.2);
}
.cat-card.accent-recharge {
  --card-accent: var(--neon-green);
  --card-accent-bg: rgba(16, 185, 129, 0.2);
}

/* ========================================================
   FILTER TOOLBAR & SEARCH
======================================================== */
.filter-toolbar {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.search-input-wrap {
  position: relative;
  flex-grow: 1;
  min-width: 260px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-dim);
}

.search-input {
  width: 100%;
  background: rgba(7, 9, 14, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 14px 10px 42px;
  color: #fff;
  font-size: 0.9rem;
  transition: var(--trans-fast);
}

.search-input:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.25);
}

.filter-selects {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-select {
  background: rgba(7, 9, 14, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 10px 14px;
  font-size: 0.88rem;
  cursor: pointer;
  transition: var(--trans-fast);
}

.filter-select:focus, .filter-select:hover {
  border-color: var(--neon-cyan);
  color: #fff;
}

.filter-tags-row {
  width: 100%;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: 0.6rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.filter-tag {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--trans-fast);
}

.filter-tag:hover, .filter-tag.active {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--border-cyan);
  color: var(--neon-cyan);
}

/* ========================================================
   PRODUCT CARD & GRID
======================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--trans-smooth);
  position: relative;
  backdrop-filter: blur(8px);
}

.product-card:hover {
  border-color: var(--border-cyan);
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.5), 0 0 25px rgba(0, 242, 254, 0.2);
  transform: translateY(-6px);
}

.product-thumbnail-wrap {
  position: relative;
  width: 100%;
  height: 190px;
  overflow: hidden;
  background: #101624;
}

.product-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-thumbnail {
  transform: scale(1.08);
}

.product-badge-rank {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
}

.rank-master { color: #f59e0b; border-color: rgba(245, 158, 11, 0.4); }
.rank-conqueror { color: #ef4444; border-color: rgba(239, 68, 68, 0.4); }
.rank-veteran { color: #8b5cf6; border-color: rgba(139, 92, 246, 0.4); }
.rank-diamond { color: #00f2fe; border-color: rgba(0, 242, 254, 0.4); }

.product-code-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(6px);
  padding: 4px 8px;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-dim);
  border: 1px solid var(--border-subtle);
}

.product-discount-pill {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: var(--grad-fire);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.product-body {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.8rem;
  color: #fff;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  background: rgba(7, 9, 14, 0.5);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-bottom: 1rem;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.spec-item strong {
  color: #fff;
  font-weight: 600;
}

.product-tags-list {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.tag-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--text-dim);
}

.tag-pill.tag-hot {
  color: var(--neon-gold);
  border-color: rgba(255, 183, 3, 0.3);
  background: rgba(255, 183, 3, 0.08);
}

.product-footer {
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.price-box {
  display: flex;
  flex-direction: column;
}

.current-price {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--neon-gold);
  line-height: 1;
}

.old-price {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-decoration: line-through;
  margin-top: 2px;
}

.btn-buy-card {
  background: var(--grad-primary);
  color: #07090e;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--trans-bounce);
  box-shadow: 0 4px 14px rgba(0, 242, 254, 0.35);
}

.btn-buy-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 242, 254, 0.6);
}

/* Sold Out Overlay */
.product-card.sold-out {
  opacity: 0.6;
  filter: grayscale(0.5);
  pointer-events: none;
}

.sold-tag {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-15deg);
  background: var(--neon-red);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  padding: 6px 20px;
  border-radius: 6px;
  box-shadow: var(--glow-red);
  z-index: 5;
}

/* ========================================================
   MYSTERY BOX / RANDOM CHEST SECTION
======================================================== */
.mystery-section {
  padding: 4rem 0;
  background: linear-gradient(180deg, rgba(13, 17, 26, 0.6) 0%, rgba(7, 9, 14, 0.95) 100%);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.mystery-banner {
  background: var(--grad-dark-card);
  border: 1px solid var(--border-purple);
  box-shadow: var(--glow-purple);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 380px 1fr;
  overflow: hidden;
  margin-bottom: 2.5rem;
}

.mystery-img-wrap {
  position: relative;
  overflow: hidden;
  background: #090b12;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.mystery-img {
  width: 100%;
  max-width: 320px;
  filter: drop-shadow(0 0 30px rgba(139, 92, 246, 0.6));
  animation: float-chest 3s ease-in-out infinite alternate;
}

@keyframes float-chest {
  0% { transform: translateY(0px) rotate(0deg); }
  100% { transform: translateY(-12px) rotate(1.5deg); }
}

.mystery-details {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.mystery-details h3 {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 0.8rem;
  line-height: 1.1;
}

.mystery-details h3 span {
  color: var(--neon-purple);
  text-shadow: var(--glow-purple);
}

.mystery-details p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.random-packages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.box-pack-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: var(--trans-smooth);
}

.box-pack-card:hover {
  border-color: var(--neon-purple);
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(139, 92, 246, 0.25);
}

.box-pack-name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.4rem;
}

.box-pack-prob {
  font-size: 0.75rem;
  color: var(--neon-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 1rem;
}

.box-pack-price {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--neon-gold);
  margin-bottom: 1.2rem;
}

.btn-open-box {
  width: 100%;
  background: var(--grad-purple);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  padding: 10px 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--trans-bounce);
  box-shadow: 0 4px 15px rgba(196, 113, 237, 0.35);
}

.btn-open-box:hover {
  transform: scale(1.04);
  box-shadow: 0 6px 20px rgba(196, 113, 237, 0.6);
}

/* ========================================================
   LUCKY WHEEL SECTION
======================================================== */
.wheel-section {
  padding: 4.5rem 0;
  position: relative;
}

.wheel-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 3rem;
  align-items: center;
}

.wheel-canvas-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.wheel-frame {
  position: relative;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  padding: 14px;
  background: radial-gradient(circle, #25123d 0%, #0c0817 100%);
  border: 4px solid #ffb703;
  box-shadow: 0 0 40px rgba(255, 183, 3, 0.4), inset 0 0 25px rgba(139, 92, 246, 0.5);
}

#luckyWheelCanvas {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  transition: transform 5s cubic-bezier(0.15, 0.9, 0.25, 1);
}

.wheel-pointer {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -15px);
  width: 38px;
  height: 48px;
  z-index: 10;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,0.8));
}

.wheel-spin-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: radial-gradient(circle, #ffe259 0%, #ffa751 100%);
  border: 4px solid #fff;
  color: #07090e;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 900;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 0 25px rgba(255, 183, 3, 0.7);
  z-index: 15;
  transition: transform 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wheel-spin-btn:hover {
  transform: translate(-50%, -50%) scale(1.08);
}

.wheel-spin-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: translate(-50%, -50%);
}

.wheel-controls {
  margin-top: 1.8rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.wheel-price-tag {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--neon-gold);
}

/* Wheel History & Winners */
.wheel-info-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.wheel-info-panel h4 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  color: var(--neon-cyan);
  display: flex;
  align-items: center;
  gap: 8px;
}

.winner-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 280px;
  overflow-y: auto;
}

.winner-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(7, 9, 14, 0.6);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--neon-purple);
  font-size: 0.85rem;
}

.winner-user {
  font-weight: 600;
  color: #fff;
}

.winner-prize {
  color: var(--neon-gold);
  font-weight: 700;
}

/* ========================================================
   RECHARGE SECTION (VIETQR & CARD)
======================================================== */
.recharge-section {
  padding: 4rem 0;
  background: var(--bg-dark);
}

.recharge-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  backdrop-filter: blur(12px);
}

.recharge-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(7, 9, 14, 0.6);
}

.recharge-tab-btn {
  flex: 1;
  padding: 1.2rem 1.5rem;
  background: none;
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: var(--trans-fast);
  border-bottom: 3px solid transparent;
}

.recharge-tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.03);
}

.recharge-tab-btn.active {
  color: var(--neon-cyan);
  border-bottom-color: var(--neon-cyan);
  background: rgba(0, 242, 254, 0.05);
}

.recharge-tab-content {
  padding: 2.5rem;
  display: none;
}

.recharge-tab-content.active {
  display: block;
}

/* VietQR Tab Layout */
.vietqr-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2.5rem;
  align-items: center;
}

.qr-code-box {
  background: #fff;
  padding: 1rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.6);
  text-align: center;
}

.qr-code-img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.qr-caption {
  font-size: 0.8rem;
  color: #07090e;
  font-weight: 700;
  margin-top: 8px;
}

.bank-info-table {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.bank-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(7, 9, 14, 0.7);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.bank-info-row .label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.bank-info-row .val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-copy {
  background: rgba(0, 242, 254, 0.15);
  color: var(--neon-cyan);
  border: 1px solid var(--border-cyan);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--trans-fast);
}

.btn-copy:hover {
  background: var(--neon-cyan);
  color: #07090e;
}

.amount-selector-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.btn-amount-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--trans-fast);
}

.btn-amount-chip:hover, .btn-amount-chip.active {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
}

/* Scratch Card Form */
.card-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-control {
  background: rgba(7, 9, 14, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: #fff;
  font-size: 0.95rem;
  transition: var(--trans-fast);
}

.form-control:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.25);
}

.btn-submit-card {
  background: var(--grad-primary);
  color: #07090e;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 14px 0;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: var(--glow-cyan);
  transition: var(--trans-bounce);
  margin-top: 0.5rem;
}

.btn-submit-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.6);
}

/* ========================================================
   MODALS & POPUPS
======================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 7, 11, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--trans-smooth);
}

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

.modal-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 620px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 60px rgba(0,0,0,0.8);
  transform: translateY(20px) scale(0.96);
  transition: var(--trans-smooth);
  position: relative;
}

.modal-overlay.active .modal-container {
  transform: translateY(0) scale(1);
}

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

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #fff;
}

.btn-close-modal {
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1.5rem;
  padding: 4px;
  line-height: 1;
  transition: var(--trans-fast);
}

.btn-close-modal:hover {
  color: #fff;
  transform: rotate(90deg);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.2rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

/* Purchased Account Result Box */
.account-reveal-box {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 1.2rem 0;
}

.account-reveal-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.account-reveal-row:last-child {
  border-bottom: none;
}

.cred-val {
  font-family: monospace;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--neon-cyan);
  background: rgba(7, 9, 14, 0.7);
  padding: 4px 12px;
  border-radius: 4px;
  user-select: all;
}

/* ========================================================
   TOAST NOTIFICATION
======================================================== */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast-msg {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--neon-cyan);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateX(100%);
  opacity: 0;
  animation: toast-in 0.35s forwards, toast-out 0.35s 3.5s forwards;
  pointer-events: auto;
}

.toast-msg.success { border-left-color: var(--neon-green); }
.toast-msg.error { border-left-color: var(--neon-red); }
.toast-msg.warning { border-left-color: var(--neon-gold); }

@keyframes toast-in {
  to { transform: translateX(0); opacity: 1; }
}

@keyframes toast-out {
  to { transform: translateX(120%); opacity: 0; }
}

/* ========================================================
   FOOTER
======================================================== */
.site-footer {
  background: #05070a;
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 1rem;
  line-height: 1.6;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 1.2rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: all 0.2s ease;
}

.footer-links a:hover {
  color: var(--neon-cyan);
  padding-left: 4px;
}

.footer-links a:hover strong {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0, 242, 254, 0.4);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* ========================================================
   KEYFRAMES & RESPONSIVE
======================================================== */
@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

@media (max-width: 1024px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .mystery-banner { grid-template-columns: 1fr; }
  .mystery-img-wrap { padding: 1.5rem; }
  .random-packages-grid { grid-template-columns: repeat(2, 1fr); }
  .wheel-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .btn-menu-toggle { display: block; }
  .hero-content { padding: 2rem 1.5rem; }
  .hero-title { font-size: 2.2rem; }
  .hero-stats-row { flex-direction: column; gap: 1rem; }
  .vietqr-layout { grid-template-columns: 1fr; }
  .card-form-grid { grid-template-columns: 1fr; }
  .form-group.full-width { grid-column: span 1; }
  .wheel-frame { width: 330px; height: 330px; }
  .footer-grid { grid-template-columns: 1fr; }
}