/* =============================================
   MATRIX MU - Premium UI/UX Polished Stylesheet
   ============================================= */

   :root {
    /* Updated Matrix Neon Glow Palette */
    --neon: #00ffcc;
    --neon-dim: #00b38f;
    --neon-dark: #004d40;
    --neon-glow: rgba(0, 255, 204, 0.5);
    --neon-glow-hover: rgba(0, 255, 204, 0.8);
    --bg: #030805;
    --bg-darker: #010302;
    --glass-bg: rgba(0, 30, 20, 0.65);
    --glass-border: rgba(0, 255, 204, 0.2);
    --glass-border-hover: rgba(0, 255, 204, 0.5);
    --text: #e0f2f1;
    --text-dim: #80cbc4;
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
    --nav-height: 80px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }
  
  /* Reset & Base */
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; overflow-x: hidden; }
  body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
  }
  
  a { text-decoration: none; color: inherit; transition: var(--transition); }
  ul { list-style: none; }
  
  /* Utilities */
  .text-neon { color: var(--neon); text-shadow: 0 0 8px var(--neon-glow); }
  .bg-darker { background-color: var(--bg-darker); }
  .text-center { text-align: center; }
  
  /* Canvas Background */
  #matrixCanvas {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: -1;
    opacity: 0.15;
  }
  
  /* Typography */
  h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; letter-spacing: 1px; color: #fff;}
  .section-title {
    font-size: 2.5rem;
    color: #fff;
    text-shadow: 0 0 10px var(--neon-glow);
    text-align: center;
    margin-bottom: 0.5rem;
  }
  .header-line {
    width: 80px; height: 3px;
    background: var(--neon);
    margin: 0 auto 3rem;
    box-shadow: 0 0 15px var(--neon-glow);
  }
  
  /* Layout */
  .section { padding: 8rem 0; position: relative; }
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
  }
  
  /* Glassmorphism Panels */
  .glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 8px;
    padding: 2rem;
    transition: var(--transition);
  }
  
  /* Hover Animations */
  .hover-scale:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: var(--glass-border-hover);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px var(--neon-glow);
  }
  .hover-glow:hover {
    border-color: var(--neon);
    box-shadow: 0 0 25px var(--neon-glow);
  }
  
  /* Navigation */
  #navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-height);
    background: rgba(1, 3, 2, 0.4);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: var(--transition);
  }
  #navbar.scrolled {
    background: rgba(1, 3, 2, 0.95);
    border-bottom: 1px solid var(--neon-dark);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  }
  .nav-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
  }
  .logo-text { color: var(--neon); text-shadow: 0 0 10px var(--neon-glow); }
  .logo-bracket { color: var(--text-dim); }
  .logo-mu { color: #fff; }
  
  .nav-links { display: flex; align-items: center; gap: 2rem; }
  .nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-dim);
    letter-spacing: 1px;
    position: relative;
  }
  .nav-link::after {
    content: ''; position: absolute;
    bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--neon);
    transition: width 0.3s ease;
    box-shadow: 0 0 8px var(--neon);
  }
  .nav-link:hover, .nav-link.active { color: var(--neon); text-shadow: 0 0 8px var(--neon); }
  .nav-link:hover::after, .nav-link.active::after { width: 100%; }
  
  .hamburger {
    display: none; background: transparent; border: none; cursor: pointer;
    flex-direction: column; gap: 5px; padding: 5px;
  }
  .hamburger span {
    display: block; width: 25px; height: 2px; background: var(--neon); box-shadow: 0 0 5px var(--neon);
  }
  
  /* Status Bar */
  .status-bar {
    position: fixed;
    top: var(--nav-height); left: 0; right: 0;
    background: rgba(0, 20, 10, 0.85);
    border-bottom: 1px solid var(--neon-dark);
    z-index: 999;
    padding: 8px 0;
  }
  .status-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 2rem;
    display: flex; justify-content: center; gap: 3rem;
    font-family: var(--font-mono); font-size: 0.8rem;
    letter-spacing: 1px; flex-wrap: wrap;
  }
  .status-dot {
    display: inline-block; width: 8px; height: 8px;
    background: var(--neon); border-radius: 50%;
    margin-right: 5px;
    box-shadow: 0 0 8px var(--neon);
    animation: pulse 2s infinite;
  }
  @keyframes pulse { 0% { opacity: 1; } 50% { opacity: 0.3; } 100% { opacity: 1; } }
  
  /* Buttons */
  .btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.8rem 1.5rem; font-family: var(--font-heading);
    font-size: 0.9rem; font-weight: 700; letter-spacing: 2px;
    cursor: pointer; border-radius: 4px; text-transform: uppercase;
    transition: var(--transition); border: transparent; outline: none;
  }
  .btn-nav {
    background: transparent;
    border: 1px solid var(--neon);
    color: var(--neon);
    padding: 0.5rem 1.2rem;
    font-size: 0.8rem;
  }
  .btn-nav:hover { background: var(--neon); color: var(--bg); box-shadow: 0 0 15px var(--neon-glow); }
  
  .btn-primary {
    background: var(--neon); color: var(--bg-darker);
    box-shadow: 0 0 15px var(--neon-glow);
  }
  .btn-primary:hover {
    background: #fff;
    box-shadow: 0 0 25px var(--neon), 0 0 45px var(--neon-glow);
    transform: scale(1.05);
  }
  
  .btn-secondary {
    background: rgba(0, 255, 204, 0.1); color: var(--neon);
    border: 1px solid var(--neon); box-shadow: 0 0 10px var(--neon-glow);
  }
  .btn-secondary:hover {
    background: var(--neon); color: var(--bg-darker);
    box-shadow: 0 0 25px var(--neon-glow);
    transform: scale(1.05);
  }
  
  .btn-large { padding: 1rem 2rem; font-size: 1rem; }
  .btn-full { width: 100%; margin-top: 1rem;}
  .btn .icon { margin-right: 8px; font-size: 1.1em; }
  
  /* Hero Section */
  .hero.fullscreen {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding-top: var(--nav-height);
  }
  .hero-content {
    text-align: center; max-width: 800px; padding: 2rem;
  }
  .hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    color: #fff;
    text-shadow: 0 0 20px var(--neon-glow), 0 0 40px var(--neon);
    margin-bottom: 0.5rem;
    line-height: 1.1;
  }
  .hero-subtitle {
    font-family: var(--font-mono);
    font-size: clamp(1.2rem, 3vw, 2rem);
    color: var(--neon);
    margin-bottom: 1.5rem;
    height: 2.4rem; /* Setup fixed height for typing */
  }
  .cursor {
    display: inline-block; width: 10px; background-color: var(--neon);
    animation: blink 1s step-end infinite;
  }
  @keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
  
  .hero-desc {
    font-size: 1.2rem; color: var(--text-dim); margin-bottom: 3rem;
  }
  .hero-actions {
    display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap;
  }
  
  /* Info Grid */
  .info-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2rem;
  }
  .info-card { text-align: center; }
  .info-icon { font-size: 3rem; margin-bottom: 1rem; filter: drop-shadow(0 0 10px var(--neon)); }
  .info-card h3 { font-size: 0.9rem; color: var(--text-dim); letter-spacing: 2px; }
  .info-val { font-family: var(--font-heading); font-size: 1.8rem; color: var(--neon); text-shadow: 0 0 15px var(--neon); margin: 0.5rem 0; }
  .info-card p { font-size: 0.85rem; color: #aaa; }
  
  /* Features Grid */
  .features-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem;
  }
  .feature-box { display: flex; flex-direction: column; align-items: flex-start; }
  .feature-icon { font-size: 2.5rem; margin-bottom: 1rem; }
  .feature-content h3 { font-size: 1.2rem; color: var(--neon); margin-bottom: 0.8rem; }
  .feature-content p { color: var(--text-dim); font-size: 0.95rem; }
  
  /* Ranking Section */
  .ranking-container { max-width: 900px; margin: 0 auto; padding: 0;}
  .ranking-table-responsive { overflow-x: auto; border-radius: 8px;}
  .ranking-table {
    width: 100%; border-collapse: collapse; text-align: left;
  }
  .ranking-table th {
    background: rgba(0, 255, 204, 0.1); color: var(--neon); padding: 1.2rem 1rem;
    font-family: var(--font-heading); font-size: 0.85rem; letter-spacing: 1px;
    border-bottom: 2px solid var(--neon-dark);
  }
  .ranking-table td {
    padding: 1rem; border-bottom: 1px solid rgba(0, 255, 204, 0.1); color: var(--text);
  }
  .ranking-table tr.line-glow:hover { background: rgba(0, 255, 204, 0.05); }
  .player-name { font-weight: 600; font-family: var(--font-heading); letter-spacing: 1px;}
  
  .rank-badge {
    display: inline-flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; border-radius: 50%;
    background: rgba(255,255,255,0.1); font-weight: bold; font-family: var(--font-mono);
  }
  .gold { background: rgba(255, 215, 0, 0.2); color: #ffd700; border: 1px solid #ffd700; box-shadow: 0 0 10px rgba(255,215,0,0.5);}
  .silver { background: rgba(192, 192, 192, 0.2); color: #c0c0c0; border: 1px solid #c0c0c0; }
  .bronze { background: rgba(205, 127, 50, 0.2); color: #cd7f32; border: 1px solid #cd7f32; }
  
  /* Download & Register */
  .dr-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-bottom: 3rem;
  }
  .dr-card { text-align: center; }
  .dr-icon { font-size: 3rem; color: var(--neon); text-shadow: 0 0 15px var(--neon); margin-bottom: 1rem; }
  .dr-card h3 { font-size: 1.5rem; margin-bottom: 1rem; color: #fff;}
  .dr-card p { color: var(--text-dim); margin-bottom: 1.5rem; }
  .client-info {
    font-family: var(--font-mono); color: #aaa; font-size: 0.9rem; margin-bottom: 1.5rem; padding: 0.8rem;
    background: rgba(0,0,0,0.5); border-radius: 4px; border: 1px dashed var(--neon-dark);
  }
  
  .auth-form { display: flex; flex-direction: column; gap: 1rem; }
  .form-input {
    width: 100%; padding: 1rem; background: rgba(0,0,0,0.4);
    border: 1px solid var(--glass-border); border-radius: 4px;
    color: #fff; font-family: var(--font-body); font-size: 1rem; transition: var(--transition);
  }
  .form-input:focus { border-color: var(--neon); outline: none; box-shadow: 0 0 10px var(--neon-glow); background: rgba(0,255,204,0.05); }
  
  .quick-guide { text-align: center; padding-top: 2rem; border-top: 1px solid var(--glass-border); }
  .quick-guide h4 { color: var(--neon); margin-bottom: 0.5rem; }
  .link-glow { font-weight: bold; text-decoration: underline; text-decoration-color: var(--neon-dark); }
  .link-glow:hover { color: #fff; text-shadow: 0 0 8px var(--neon); text-decoration-color: var(--neon); }
  
  /* Footer */
  .footer {
    background: #000; padding: 3rem 0; border-top: 1px solid var(--neon-dark);
  }
  .footer-logo { font-size: 1.5rem; font-family: var(--font-heading); font-weight: 900; margin-bottom: 1rem; }
  .footer-desc { color: var(--text-dim); margin-bottom: 0.5rem; }
  .footer-small { font-size: 0.8rem; color: #555; font-family: var(--font-mono); }
  
  /* Scroll Fade-in Animation Classes */
  .fade-in-section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, visibility;
  }
  .fade-in-section.is-visible {
    opacity: 1;
    transform: none;
  }
  
  /* Responsive Mobile */
  @media (max-width: 900px) {
    .dr-grid { grid-template-columns: 1fr; }
    .status-inner { gap: 1.5rem; justify-content: center; }
  }
  
  @media (max-width: 768px) {
    .nav-links {
      position: fixed; top: var(--nav-height); left: -100%;
      width: 100%; height: calc(100vh - var(--nav-height));
      background: rgba(0, 5, 2, 0.98); flex-direction: column;
      justify-content: center; gap: 2rem; transition: left 0.4s ease;
      backdrop-filter: blur(10px);
    }
    .nav-links.nav-active { left: 0; }
    .hamburger { display: flex; }
    
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1.2rem; }
    .hero-actions { flex-direction: column; width: 100%;}
    .btn-large { width: 100%; }
  
    .section { padding: 4rem 0; }
    .status-inner { display: none; } /* Hide complex status bar on very small screens or make it compact */
    .status-bar { display: none; }
    .hero.fullscreen { padding-top: calc(var(--nav-height) + 20px); }
  }