/* ===================================================================
   ROYMC NETWORK - OFFICIAL MINECRAFT SERVER PORTAL
   Styles & Animations
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@700;900&family=Outfit:wght@300;400;500;600;700;800;900&family=VT323&display=swap');

/* --- ROOT VARIABLES --- */
:root {
  /* Colors */
  --bg-darker: #06080d;
  --bg-main: #0a0d17;
  --bg-card: rgba(16, 22, 38, 0.65);
  --bg-card-hover: rgba(22, 31, 54, 0.85);
  --bg-glass: rgba(10, 14, 26, 0.75);
  
  --primary: #10b981;          /* Emerald Green */
  --primary-rgb: 16, 185, 129;
  --primary-light: #34d399;
  --primary-dark: #059669;
  --primary-glow: rgba(16, 185, 129, 0.35);

  --accent-cyan: #00f2fe;      /* Diamond Cyan */
  --accent-cyan-glow: rgba(0, 242, 254, 0.35);
  --accent-gold: #fbbf24;      /* Gold Ingots */
  --accent-gold-glow: rgba(251, 191, 36, 0.35);
  --accent-purple: #c084fc;    /* Enchantment Purple */
  --accent-red: #f43f5e;       /* Redstone / Danger */
  --accent-discord: #5865F2;   /* Discord Blurple */

  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --border-light: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(16, 185, 129, 0.3);
  --border-focus: rgba(0, 242, 254, 0.5);

  /* Typography */
  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Cinzel', 'Outfit', serif;
  --font-pixel: 'VT323', monospace;

  /* Dimensions & Transitions */
  --navbar-height: 76px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px var(--primary-glow);
}

/* --- GLOBAL RESET & BASE --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darker);
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-darker);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

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

ul {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
}

/* --- CANVAS & AMBIENT BACKGROUNDS --- */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: 0;
  pointer-events: none;
  opacity: 0.25;
}

.ambient-glow-1 {
  width: 500px;
  height: 500px;
  background: var(--primary);
  top: -100px;
  left: 10%;
}

.ambient-glow-2 {
  width: 600px;
  height: 600px;
  background: var(--accent-cyan);
  top: 40%;
  right: -150px;
}

.ambient-glow-3 {
  width: 450px;
  height: 450px;
  background: var(--accent-purple);
  bottom: 10%;
  left: -100px;
}

/* --- LAYOUT UTILITIES --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-full);
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.2);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-title span {
  background: linear-gradient(135deg, var(--primary-light), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff;
  box-shadow: 0 4px 20px var(--primary-glow);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.btn-discord {
  background: var(--accent-discord);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(88, 101, 242, 0.35);
}

.btn-discord:hover {
  background: #4752c4;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(88, 101, 242, 0.5);
}

.btn-gold {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #1a1001;
  font-weight: 800;
  box-shadow: 0 4px 20px var(--accent-gold-glow);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.6);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* ===================================================================
   NAVIGATION BAR (THANH MENU CAO CẤP)
   =================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  z-index: 1000;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  background: rgba(8, 11, 20, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.navbar.scrolled {
  background: rgba(6, 8, 16, 0.96);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 25px rgba(16, 185, 129, 0.15);
  height: 70px;
  border-bottom-color: rgba(16, 185, 129, 0.3);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
  max-width: 1320px;
}

/* Brand Logo */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
  user-select: none;
}

.nav-logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #10b981, #00f2fe);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #05070d;
  font-size: 1.35rem;
  font-weight: 900;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.45);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-brand:hover .nav-logo-icon {
  transform: rotate(12deg) scale(1.08);
  box-shadow: 0 0 28px rgba(0, 242, 254, 0.65);
}

.nav-brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: 1.5px;
  color: #ffffff;
  line-height: 1.1;
}

.brand-name span {
  color: var(--primary-light);
  text-shadow: 0 0 14px rgba(16, 185, 129, 0.6);
}

.brand-tag {
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 2.2px;
  color: var(--accent-cyan);
  font-weight: 800;
}

/* Nav Menu Capsule */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.07);
  padding: 4px 6px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

.nav-link {
  color: #94a3b8;
  font-size: 0.86rem;
  font-weight: 600;
  position: relative;
  padding: 8px 13px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.22s ease;
  white-space: nowrap;
  letter-spacing: 0.2px;
}

.nav-link i {
  font-size: 0.82rem;
  opacity: 0.65;
  transition: all 0.22s ease;
}

.nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link:hover i {
  opacity: 1;
  color: var(--accent-cyan);
  transform: translateY(-1px);
}

.nav-link.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.28), rgba(0, 242, 254, 0.15));
  border: 1px solid rgba(16, 185, 129, 0.45);
  box-shadow: 0 0 18px rgba(16, 185, 129, 0.25);
  font-weight: 700;
}

.nav-link.active i {
  color: var(--primary-light);
  opacity: 1;
}

/* Nav Actions (Buttons on the right) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-discord-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(88, 101, 242, 0.14);
  border: 1px solid rgba(88, 101, 242, 0.35);
  border-radius: var(--radius-full);
  color: #ffffff;
  font-size: 0.84rem;
  font-weight: 600;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.nav-discord-badge:hover {
  background: rgba(88, 101, 242, 0.28);
  border-color: #5865F2;
  box-shadow: 0 0 18px rgba(88, 101, 242, 0.45);
  transform: translateY(-2px);
}

.discord-dot {
  width: 8px;
  height: 8px;
  background: #23a55a;
  border-radius: 50%;
  box-shadow: 0 0 8px #23a55a;
  animation: pulse-dot 2s infinite;
}

.nav-actions .open-recharge-modal {
  padding: 8px 18px;
  font-size: 0.86rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-light);
  font-size: 1.25rem;
  color: #ffffff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary);
  color: var(--primary-light);
}

/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: calc(var(--navbar-height) + 40px);
  padding-bottom: 60px;
  position: relative;
  background: radial-gradient(circle at 50% 30%, rgba(16, 185, 129, 0.12) 0%, rgba(10, 13, 23, 0) 70%);
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-server-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  margin-bottom: 24px;
}

.version-pill {
  padding: 2px 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #000;
  font-size: 0.75rem;
  font-weight: 800;
  border-radius: var(--radius-full);
}

.hero-server-tag span {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.hero-title {
  font-size: 3.8rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, var(--primary-light) 70%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-title .subtitle-accent {
  font-family: var(--font-heading);
  color: var(--accent-gold);
  text-shadow: 0 0 25px rgba(251, 191, 36, 0.4);
  font-size: 3rem;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

/* --- SERVER IP & STATUS WIDGET --- */
.server-ip-widget {
  max-width: 620px;
  margin: 0 auto 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 20px 24px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(16, 185, 129, 0.15);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition-normal);
}

.server-ip-widget:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg), 0 0 45px rgba(16, 185, 129, 0.25);
}

.ip-bar-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.ip-info {
  display: flex;
  align-items: center;
  gap: 16px;
  text-align: left;
}

.ip-icon {
  width: 48px;
  height: 48px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 1.3rem;
}

.ip-text-wrap {
  display: flex;
  flex-direction: column;
}

.ip-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
}

.ip-address {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  font-family: var(--font-pixel);
  letter-spacing: 1.5px;
}

.copy-btn {
  padding: 10px 22px;
  background: var(--primary);
  color: #ffffff;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.copy-btn:hover {
  background: var(--primary-light);
  color: #000;
  transform: scale(1.03);
}

.ip-status-details {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
  font-size: 0.88rem;
  flex-wrap: wrap;
  gap: 10px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-light);
  font-weight: 600;
}

.status-dot {
  width: 10px;
  height: 10px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary);
  animation: pulse-dot 2s infinite;
}

.status-indicator.offline {
  color: var(--accent-red);
}
.status-indicator.offline .status-dot {
  background: var(--accent-red);
  box-shadow: 0 0 10px var(--accent-red);
  animation: none;
}

.status-badge-online {
  color: var(--primary-light);
  font-weight: 700;
}

.status-badge-offline {
  color: var(--accent-red);
  font-weight: 700;
}

.refresh-status-btn {
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.refresh-status-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary);
}

.refresh-status-btn.spinning i {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.server-motd-text {
  font-size: 0.82rem;
  color: var(--accent-gold);
  background: rgba(0, 0, 0, 0.35);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  border: 1px dashed rgba(251, 191, 36, 0.3);
  width: 100%;
  text-align: center;
  font-family: var(--font-pixel);
  letter-spacing: 0.5px;
  display: none;
}

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

.player-count strong {
  color: #ffffff;
  font-size: 1rem;
}

.bedrock-info {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-cyan);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ===================================================================
   GAME MODES SECTION (CHẾ ĐỘ CHƠI)
   =================================================================== */
.gamemodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 32px;
}

.mode-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
}

.mode-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg), 0 0 35px var(--primary-glow);
}

.mode-card.crimson-card:hover {
  border-color: #f43f5e;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(244, 63, 94, 0.35);
}

.mode-card.towny-card:hover {
  border-color: #10b981;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(16, 185, 129, 0.35);
}

.mode-banner {
  height: 220px;
  width: 100%;
  position: relative;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
  padding: 24px;
}

.mode-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-darker) 5%, rgba(10, 13, 23, 0.4) 65%, transparent 100%);
}

.mode-banner-crimsonbox {
  background: linear-gradient(135deg, rgba(76, 5, 25, 0.9), rgba(225, 29, 72, 0.8)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?auto=format&fit=crop&w=800&q=80') center/cover;
}

.mode-banner-towny {
  background: linear-gradient(135deg, rgba(6, 78, 59, 0.9), rgba(217, 119, 6, 0.8)), url('https://images.unsplash.com/photo-1518709268805-4e9042af9f23?auto=format&fit=crop&w=800&q=80') center/cover;
}

.mode-badge {
  position: relative;
  z-index: 2;
  padding: 6px 14px;
  background: rgba(0, 0, 0, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.mode-badge.crimson { color: #fda4af; border-color: #f43f5e; box-shadow: 0 0 15px rgba(244, 63, 94, 0.4); }
.mode-badge.emerald { color: var(--primary-light); border-color: var(--primary); box-shadow: 0 0 15px rgba(16, 185, 129, 0.4); }
.mode-badge.diamond { color: var(--accent-cyan); border-color: var(--accent-cyan); }
.mode-badge.gold { color: var(--accent-gold); border-color: var(--accent-gold); }
.mode-badge.purple { color: var(--accent-purple); border-color: var(--accent-purple); }

.mode-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.mode-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.mode-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
}

.mode-icon {
  font-size: 1.5rem;
  color: var(--primary-light);
}

.mode-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 20px;
  line-height: 1.6;
  flex-grow: 1;
}

.mode-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.mode-tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.mode-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.mode-status {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-light);
  font-weight: 600;
}

/* ===================================================================
   HOW TO JOIN SECTION (HƯỚNG DẪN THAM GIA)
   =================================================================== */
.join-tabs {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 12px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition-fast);
}

.tab-btn.active, .tab-btn:hover {
  background: var(--primary);
  color: #000;
  border-color: var(--primary);
  box-shadow: 0 4px 20px var(--primary-glow);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  position: relative;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.step-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.step-number {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #000;
  font-size: 1.4rem;
  font-weight: 900;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.step-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.step-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

.step-code-box {
  margin-top: 14px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-family: var(--font-pixel);
  font-size: 1.15rem;
  color: var(--accent-cyan);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ===================================================================
   STORE / VIP RANKS SECTION (CỬA HÀNG)
   =================================================================== */
.ranks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.rank-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition-normal);
  backdrop-filter: blur(12px);
}

.rank-card.featured {
  border-color: var(--accent-gold);
  box-shadow: 0 0 35px var(--accent-gold-glow);
}

.rank-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg), 0 0 30px var(--primary-glow);
}

.rank-card.featured:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), 0 0 40px var(--accent-gold-glow);
}

.rank-popular-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #000;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.5);
  white-space: nowrap;
}

.rank-header {
  text-align: center;
  margin-bottom: 24px;
}

.rank-icon-wrapper {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.rank-vip .rank-icon-wrapper {
  background: rgba(16, 185, 129, 0.15);
  color: var(--primary-light);
  border: 1px solid var(--primary);
}
.rank-mvp .rank-icon-wrapper {
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
}
.rank-roy .rank-icon-wrapper {
  background: rgba(251, 191, 36, 0.15);
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
}
.rank-god .rank-icon-wrapper {
  background: rgba(192, 132, 252, 0.15);
  color: var(--accent-purple);
  border: 1px solid var(--accent-purple);
}

.rank-title {
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 1px;
}

.rank-price {
  font-size: 1.9rem;
  font-weight: 900;
  color: #ffffff;
  margin-top: 8px;
}

.rank-price span {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

.rank-features {
  margin-bottom: 28px;
  flex-grow: 1;
}

.rank-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.rank-feature-item i {
  color: var(--primary-light);
  font-size: 0.85rem;
}

/* ===================================================================
   LEADERBOARDS & TOP PLAYERS (VINH DANH)
   =================================================================== */
.leaderboards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.leaderboard-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 24px;
  backdrop-filter: blur(12px);
}

.leaderboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-light);
}

.leaderboard-title {
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.player-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.player-row:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--border-light);
  transform: translateX(4px);
}

.player-row.top-1 {
  background: rgba(251, 191, 36, 0.08);
  border-color: rgba(251, 191, 36, 0.3);
}

.player-row.top-2 {
  background: rgba(203, 213, 225, 0.08);
  border-color: rgba(203, 213, 225, 0.3);
}

.player-row.top-3 {
  background: rgba(217, 119, 6, 0.08);
  border-color: rgba(217, 119, 6, 0.3);
}

.player-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.player-rank {
  font-weight: 900;
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
}

.player-row.top-1 .player-rank { color: #fbbf24; }
.player-row.top-2 .player-rank { color: #cbd5e1; }
.player-row.top-3 .player-rank { color: #f97316; }

.player-avatar {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: #1e293b;
  image-rendering: pixelated;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.player-meta {
  display: flex;
  flex-direction: column;
}

.player-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: #ffffff;
}

.player-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.player-stat {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--primary-light);
  font-family: var(--font-pixel);
  letter-spacing: 1px;
}

/* ===================================================================
   RULES ACCORDION (QUY ĐỊNH MÁY CHỦ)
   =================================================================== */
.rules-wrapper {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.rule-accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-fast);
}

.rule-accordion-item.active {
  border-color: var(--primary);
  box-shadow: 0 4px 20px var(--primary-glow);
}

.rule-accordion-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.rule-title-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.rule-icon {
  width: 40px;
  height: 40px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 1.1rem;
}

.rule-accordion-item.danger .rule-icon {
  background: rgba(244, 63, 94, 0.1);
  color: var(--accent-red);
}

.rule-header-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
}

.rule-toggle-icon {
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

.rule-accordion-item.active .rule-toggle-icon {
  transform: rotate(180deg);
  color: var(--primary-light);
}

.rule-accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
  padding: 0 24px;
}

.rule-accordion-item.active .rule-accordion-body {
  max-height: 500px;
  transition: max-height 0.5s ease-in-out;
  padding-bottom: 20px;
}

.rule-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}

.rule-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.rule-list li i {
  margin-top: 4px;
  color: var(--primary-light);
}

.rule-accordion-item.danger .rule-list li i {
  color: var(--accent-red);
}

/* ===================================================================
   STAFF TEAM (BAN QUẢN TRỊ)
   =================================================================== */
.staff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  max-width: 1000px;
  margin: 0 auto;
}

.staff-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition-normal);
  backdrop-filter: blur(12px);
  position: relative;
}

.staff-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: var(--shadow-md), 0 0 25px var(--primary-glow);
}

.staff-avatar-wrap {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  position: relative;
}

.staff-avatar {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  image-rendering: pixelated;
  border: 2px solid var(--border-light);
  background: #1e293b;
}

.staff-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 6px;
}

.staff-role-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.staff-role-owner { background: rgba(244, 63, 94, 0.15); color: #f43f5e; border: 1px solid #f43f5e; }
.staff-role-admin { background: rgba(251, 191, 36, 0.15); color: #fbbf24; border: 1px solid #fbbf24; }
.staff-role-dev { background: rgba(0, 242, 254, 0.15); color: #00f2fe; border: 1px solid #00f2fe; }
.staff-role-builder { background: rgba(192, 132, 252, 0.15); color: #c084fc; border: 1px solid #c084fc; }

.staff-discord-tag {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===================================================================
   VOTE SECTION (BÌNH CHỌN)
   =================================================================== */
.vote-banner-box {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(0, 242, 254, 0.05));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  backdrop-filter: blur(12px);
}

.vote-info {
  max-width: 600px;
}

.vote-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.vote-rewards-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.reward-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-gold);
}

.vote-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ===================================================================
   MODAL & POPUP (NẠP THẺ & CHI TIẾT)
   =================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  padding: 20px;
}

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

.modal-box {
  background: var(--bg-main);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 500px;
  padding: 32px;
  position: relative;
  box-shadow: var(--shadow-lg), 0 0 50px var(--primary-glow);
  transform: scale(0.95) translateY(20px);
  transition: var(--transition-normal);
}

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

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

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

.modal-header {
  text-align: center;
  margin-bottom: 24px;
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input, .form-select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus, .form-select:focus {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 12px var(--primary-glow);
}

.form-select option {
  background: #0d121f;
  color: #fff;
}

/* ===================================================================
   TOAST NOTIFICATION (THÔNG BÁO COPY IP)
   =================================================================== */
.toast-container {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.toast {
  background: rgba(16, 22, 38, 0.95);
  border: 1px solid var(--primary);
  color: #ffffff;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px var(--primary-glow);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.92rem;
  font-weight: 600;
  transform: translateX(120%);
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  pointer-events: auto;
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast-icon {
  font-size: 1.2rem;
  color: var(--primary-light);
}

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border-light);
  padding: 70px 0 30px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand-info p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin: 16px 0 24px;
  max-width: 320px;
  line-height: 1.6;
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.social-link:hover {
  color: #ffffff;
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 4px 15px var(--primary-glow);
}

.footer-col-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary-light);
  padding-left: 6px;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-disclaimer {
  max-width: 600px;
  font-size: 0.78rem;
  line-height: 1.5;
}

/* ===================================================================
   ANIMATIONS & KEYFRAMES
   =================================================================== */
@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; filter: drop-shadow(0 0 6px currentColor); }
  100% { transform: scale(0.95); opacity: 0.8; }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   =================================================================== */
@media (max-width: 1240px) {
  .nav-link {
    padding: 7px 10px;
    font-size: 0.82rem;
    gap: 5px;
  }
  .nav-discord-badge {
    padding: 7px 12px;
    font-size: 0.8rem;
  }
}

@media (max-width: 1120px) {
  .nav-menu {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    width: 100%;
    background: rgba(7, 10, 18, 0.98);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    flex-direction: column;
    padding: 24px 20px;
    gap: 8px;
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    border-bottom: 2px solid rgba(16, 185, 129, 0.3);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.85);
    transform: translateY(-160%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 999;
  }

  .nav-menu.open {
    transform: translateY(0);
  }

  .nav-link {
    width: 100%;
    justify-content: flex-start;
    padding: 12px 20px;
    font-size: 0.95rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.04);
  }

  .nav-link:hover, .nav-link.active {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.3);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-discord-badge {
    display: none;
  }
}

@media (max-width: 1024px) {
  .hero-title {
    font-size: 3rem;
  }
  .hero-title .subtitle-accent {
    font-size: 2.3rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.3rem;
  }
  .hero-title .subtitle-accent {
    font-size: 1.8rem;
  }
  .hero-description {
    font-size: 1rem;
  }

  .ip-bar-main {
    flex-direction: column;
    align-items: stretch;
  }

  .ip-info {
    justify-content: center;
  }

  .copy-btn {
    width: 100%;
  }

  .vote-banner-box {
    flex-direction: column;
    text-align: center;
    padding: 30px 20px;
  }

  .vote-rewards-list {
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}