/* ============================================================
   DIGITAL LEARNING UNIVERSE — STYLESHEET
   ABACUS CLUB | GEC West Champaran
   ============================================================ */

/* ---- VARIABLES (matched from main site) ---- */
:root {
  --cyan: #00f5ff;
  --cyan-dim: #00b8d4;
  --cyan-dark: #006d7a;
  --blue: #0066ff;
  --blue-dark: #0033aa;
  --purple: #8b5cf6;
  --purple-dim: #6d28d9;
  --pink: #ec4899;
  --green: #00ff88;
  --green-dim: #00cc6a;
  --red: #ff3333;
  --amber: #f59e0b;
  --bg: #020408;
  --bg2: #030812;
  --bg3: #060d1a;
  --surface: rgba(0, 245, 255, 0.03);
  --surface2: rgba(0, 245, 255, 0.06);
  --border: rgba(0, 245, 255, 0.12);
  --border-bright: rgba(0, 245, 255, 0.4);
  --text: #e2f4ff;
  --text-dim: #8ab4c8;
  --font-orb: 'Orbitron', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
  --font-int: 'Inter', sans-serif;
  --font-raj: 'Rajdhani', sans-serif;
  --transition: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-int);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
}
a { text-decoration: none; color: inherit; }
button { cursor: none; border: none; background: none; }
input, textarea, select { cursor: none; }

/* ---- SELECTION & SCROLLBAR ---- */
::selection { background: rgba(0, 245, 255, 0.2); color: var(--cyan); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: linear-gradient(to bottom, var(--cyan), var(--purple)); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan); }

/* ============================================================
   CUSTOM CURSOR
   ============================================================ */
.cursor {
  position: fixed; width: 16px; height: 16px;
  border: 2px solid var(--cyan); border-radius: 50%;
  pointer-events: none; z-index: 99999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, border-color 0.2s;
  box-shadow: 0 0 10px var(--cyan), 0 0 20px rgba(0, 245, 255, 0.3);
}
.cursor-trail {
  position: fixed; width: 6px; height: 6px;
  background: var(--cyan); border-radius: 50%;
  pointer-events: none; z-index: 99998;
  transform: translate(-50%, -50%);
  transition: left 0.08s ease, top 0.08s ease;
  box-shadow: 0 0 8px var(--cyan);
}

/* ============================================================
   PRELOADER
   ============================================================ */
#uni-preloader {
  position: fixed; inset: 0; z-index: 9999;
  background: #000; display: flex;
  align-items: center; justify-content: center;
  overflow: hidden;
}
#uni-preloader-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
}
.uni-preloader-content {
  position: relative; z-index: 2; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 20px;
}
.uni-preloader-logo {
  font-family: var(--font-orb); font-size: clamp(1.5rem, 5vw, 3rem);
  font-weight: 900; letter-spacing: 0.15em;
  color: var(--cyan); text-shadow: 0 0 30px var(--cyan), 0 0 60px rgba(0,245,255,0.5);
  animation: logo-flicker 0.15s infinite alternate;
}
@keyframes logo-flicker { from { opacity: 1; } to { opacity: 0.95; } }
.uni-preloader-sub {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--text-dim); letter-spacing: 0.2em;
}
.uni-preloader-bar-wrap {
  width: 350px; max-width: 85vw; height: 2px;
  background: rgba(0, 245, 255, 0.1); border: 1px solid rgba(0, 245, 255, 0.2);
  overflow: hidden;
}
.uni-preloader-bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  box-shadow: 0 0 20px var(--cyan);
  transition: width 0.1s ease;
}
.uni-preloader-percent {
  font-family: var(--font-orb); font-size: 1.5rem;
  color: var(--cyan); font-weight: 700;
  text-shadow: 0 0 20px var(--cyan);
}
.uni-preloader-log {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--green); text-align: left;
  width: 350px; max-width: 85vw;
  display: flex; flex-direction: column; gap: 3px;
}
.uni-log-line { opacity: 0; transition: opacity 0.3s; }
.uni-log-line.visible { opacity: 1; }

/* ============================================================
   AMBIENT CANVAS
   ============================================================ */
#uni-ambient-canvas {
  position: fixed; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0; opacity: 0.35;
}

/* ============================================================
   TOP NAV BAR
   ============================================================ */
.uni-topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 60px; display: flex; align-items: center;
  padding: 0 30px; gap: 20px;
  background: rgba(2, 4, 8, 0.75);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.uni-topnav.scrolled { background: rgba(2, 4, 8, 0.95); }
.uni-back-link {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--cyan); letter-spacing: 0.15em;
  display: flex; align-items: center; gap: 8px;
  transition: all 0.3s;
}
.uni-back-link:hover { text-shadow: 0 0 10px var(--cyan); }
.uni-nav-title {
  font-family: var(--font-orb); font-size: 0.7rem; font-weight: 700;
  color: #fff; letter-spacing: 0.15em; margin-left: auto;
}
.uni-nav-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 8px var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* World nav pills */
.uni-world-nav {
  display: flex; gap: 6px; margin-left: 20px;
}
.uni-world-pill {
  font-family: var(--font-mono); font-size: 0.55rem;
  letter-spacing: 0.1em; padding: 4px 12px;
  border: 1px solid var(--border); color: var(--text-dim);
  transition: all 0.3s; cursor: pointer;
}
.uni-world-pill:hover, .uni-world-pill.active {
  border-color: var(--cyan); color: var(--cyan);
  background: rgba(0,245,255,0.05);
  box-shadow: 0 0 10px rgba(0,245,255,0.15);
}

/* Theme Toggle Button */
.uni-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-dim);
  transition: all 0.3s ease;
  font-size: 0.95rem;
  margin-left: 20px;
  cursor: pointer;
  z-index: 1001;
}
.uni-theme-toggle:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 245, 255, 0.05);
  box-shadow: 0 0 10px rgba(0, 245, 255, 0.2);
}

/* ============================================================
   SHARED SECTION STYLES
   ============================================================ */
.uni-section {
  position: relative; min-height: 100vh;
  overflow: hidden; padding: 120px 60px;
}
.uni-section-label {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--cyan); letter-spacing: 0.3em;
  margin-bottom: 16px; text-align: center; opacity: 0.7;
}
.uni-section-title {
  font-family: var(--font-orb); font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: 0.05em; color: #fff;
  text-shadow: 0 0 40px rgba(0,245,255,0.2);
  text-align: center;
}
.uni-section-sub {
  font-family: var(--font-raj); font-size: 1.1rem;
  color: var(--text-dim); letter-spacing: 0.1em;
  margin-top: 8px; text-align: center;
}
.uni-grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px; pointer-events: none;
}
.uni-noise {
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.4; pointer-events: none; z-index: 1;
}
.uni-scanlines {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0, 245, 255, 0.015) 2px, rgba(0, 245, 255, 0.015) 4px
  );
  pointer-events: none; z-index: 1;
}

/* ============================================================
   LANDING SEQUENCE
   ============================================================ */
#uni-landing {
  min-height: 100vh; display: flex;
  align-items: center; justify-content: center;
  padding: 0; position: relative;
}
#landing-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%; z-index: 0;
}
.landing-content {
  position: relative; z-index: 3;
  text-align: center; padding: 0 20px;
  display: flex; flex-direction: column;
  align-items: center; gap: 24px;
}
.landing-badge {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--cyan); letter-spacing: 0.2em;
  padding: 8px 20px;
  border: 1px solid var(--border-bright);
  background: rgba(0, 245, 255, 0.05);
  opacity: 0; transform: translateY(20px);
}

.landing-title {
  font-family: var(--font-orb); font-weight: 900;
  font-size: clamp(2rem, 12vw, 7rem); /* Adjusted clamp for better mobile scaling */
  line-height: 1.1; 
  letter-spacing: 0.04em;
  color: #fff;
  text-shadow: 0 0 80px rgba(0,245,255,0.4), 0 0 160px rgba(0,245,255,0.2);
  opacity: 0; transform: translateY(40px);
}

.landing-title .accent {
  color: var(--cyan);
  text-shadow: 0 0 40px var(--cyan), 0 0 80px rgba(0,245,255,0.5);
  display: block;
}
.landing-subtitle {
  font-family: var(--font-raj); font-size: clamp(0.9rem, 2.5vw, 1.4rem);
  font-weight: 300; letter-spacing: 0.3em;
  color: var(--text-dim); font-style: italic;
  opacity: 0; transform: translateY(20px);
}
.landing-enter-btn {
  font-family: var(--font-orb); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.2em; padding: 16px 40px;
  border: 1px solid var(--cyan); color: var(--cyan);
  background: linear-gradient(135deg, var(--cyan-dark), var(--blue-dark));
  position: relative; overflow: hidden;
  display: flex; align-items: center; gap: 10px;
  clip-path: polygon(10px 0%, 100% 0%, calc(100% - 10px) 100%, 0% 100%);
  transition: all 0.3s; opacity: 0; transform: translateY(20px);
}
.landing-enter-btn:hover {
  box-shadow: 0 0 40px rgba(0,245,255,0.5), 0 0 80px rgba(0,245,255,0.2);
  transform: translateY(-3px);
}
.landing-enter-btn::before {
  content: ''; position: absolute; inset: 0;
  background: var(--cyan); opacity: 0; transition: opacity 0.3s;
}
.landing-enter-btn:hover::before { opacity: 0.15; }
.landing-scroll-hint {
  position: absolute; bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column;
  align-items: center; gap: 8px; z-index: 3;
  opacity: 0;
}
.landing-scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100% { transform: scaleY(1); opacity: 1; } 50% { transform: scaleY(0.5); opacity: 0.5; } }
.landing-scroll-hint span {
  font-family: var(--font-mono); font-size: 0.55rem;
  color: var(--text-dim); letter-spacing: 0.3em;
}
/* Portal effect */
.portal-ring {
  position: absolute; width: 300px; height: 300px;
  border-radius: 50%; border: 2px solid var(--cyan);
  top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0);
  opacity: 0; z-index: 2;
  box-shadow: 0 0 60px var(--cyan), 0 0 120px rgba(0,245,255,0.3), inset 0 0 60px rgba(0,245,255,0.1);
}
.portal-ring:nth-child(2) { width: 220px; height: 220px; border-color: var(--purple); box-shadow: 0 0 40px var(--purple); }
.portal-ring:nth-child(3) { width: 140px; height: 140px; border-color: var(--blue); box-shadow: 0 0 30px var(--blue); }

/* Floating code fragments */
.code-fragment {
  position: absolute; font-family: var(--font-mono);
  font-size: 0.6rem; color: rgba(0,245,255,0.15);
  pointer-events: none; white-space: nowrap;
  opacity: 0; z-index: 1;
}

/* ============================================================
   WORLD TRANSITION DIVIDER
   ============================================================ */
.world-divider {
  position: relative; height: 200px; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
}
.world-divider-line {
  width: 200px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}
.world-divider-label {
  font-family: var(--font-mono); font-size: 0.6rem;
  color: var(--cyan); letter-spacing: 0.3em;
  position: absolute; padding: 4px 16px;
  background: var(--bg); z-index: 2;
}

/* ============================================================
   WORLD 1: CODE GALAXY
   ============================================================ */
#world-galaxy {
  background: radial-gradient(ellipse at 50% 30%, rgba(0,102,255,0.08) 0%, var(--bg) 70%);
}
#galaxy-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%; z-index: 0;
}
.galaxy-content { position: relative; z-index: 2; }

/* Planet grid */
.planet-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 30px; max-width: 1100px; margin: 60px auto 0;
}
.planet-card {
  position: relative; border: 1px solid var(--border);
  background: rgba(0,0,0,0.4); backdrop-filter: blur(8px);
  padding: 32px 24px; text-align: center;
  overflow: hidden; cursor: pointer;
  transition: all 0.5s var(--transition);
  opacity: 0; transform: translateY(30px);
}
.planet-card.visible { opacity: 1; transform: translateY(0); }
.planet-card:hover {
  border-color: var(--cyan);
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 60px rgba(0,245,255,0.2);
}
.planet-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 20%, rgba(0,245,255,0.06), transparent 70%);
  opacity: 0; transition: opacity 0.4s;
}
.planet-card:hover::before { opacity: 1; }

.planet-orb {
  width: 80px; height: 80px; margin: 0 auto 16px;
  border-radius: 50%; position: relative;
  display: flex; align-items: center; justify-content: center;
}
.planet-orb-inner {
  width: 60px; height: 60px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; position: relative; z-index: 2;
}
.planet-orb-ring {
  position: absolute; inset: -4px; border-radius: 50%;
  border: 1px solid rgba(0,245,255,0.2);
  animation: orbitSpin 8s linear infinite;
}
.planet-orb-ring::after {
  content: ''; position: absolute;
  top: -3px; left: 50%; width: 6px; height: 6px;
  border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  transform: translateX(-50%);
}
@keyframes orbitSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.planet-orb-glow {
  position: absolute; inset: -20px; border-radius: 50%;
  background: radial-gradient(circle, var(--cyan), transparent 70%);
  opacity: 0.15; filter: blur(10px);
  transition: opacity 0.4s;
}
.planet-card:hover .planet-orb-glow { opacity: 0.35; }

.planet-name {
  font-family: var(--font-orb); font-size: 0.8rem;
  font-weight: 700; letter-spacing: 0.12em;
  color: #fff; margin-bottom: 6px;
}
.planet-concept {
  font-family: var(--font-mono); font-size: 0.6rem;
  color: var(--cyan); letter-spacing: 0.15em;
  margin-bottom: 12px;
}
.planet-desc {
  font-size: 0.82rem; color: var(--text-dim);
  line-height: 1.6;
}
.planet-explore-btn {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.15em; color: var(--cyan);
  padding: 6px 16px; border: 1px solid var(--border);
  margin-top: 16px; display: inline-block;
  transition: all 0.3s; cursor: pointer;
}
.planet-explore-btn:hover {
  border-color: var(--cyan);
  background: rgba(0,245,255,0.08);
  box-shadow: 0 0 15px rgba(0,245,255,0.2);
}

/* Planet colors */
.planet-card[data-planet="variables"] .planet-orb-inner { background: linear-gradient(135deg, #0ff, #06c); box-shadow: 0 0 30px rgba(0,255,255,0.3); }
.planet-card[data-planet="functions"] .planet-orb-inner { background: linear-gradient(135deg, var(--purple), #4f46e5); box-shadow: 0 0 30px rgba(139,92,246,0.3); }
.planet-card[data-planet="loops"] .planet-orb-inner { background: linear-gradient(135deg, var(--green), #059669); box-shadow: 0 0 30px rgba(0,255,136,0.3); }
.planet-card[data-planet="arrays"] .planet-orb-inner { background: linear-gradient(135deg, var(--amber), #d97706); box-shadow: 0 0 30px rgba(245,158,11,0.3); }
.planet-card[data-planet="trees"] .planet-orb-inner { background: linear-gradient(135deg, var(--pink), #be185d); box-shadow: 0 0 30px rgba(236,72,153,0.3); }
.planet-card[data-planet="graphs"] .planet-orb-inner { background: linear-gradient(135deg, var(--blue), #2563eb); box-shadow: 0 0 30px rgba(0,102,255,0.3); }

/* ============================================================
   WORLD 2: CYBER CITY
   ============================================================ */
#world-cyber {
  background: linear-gradient(to bottom, var(--bg), #050210 50%, var(--bg2));
}
.cyber-skyline {
  position: relative; max-width: 1200px; margin: 60px auto 0;
  min-height: 500px;
}
.building-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; max-width: 1100px; margin: 60px auto 0;
}
.building-card {
  position: relative; border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, rgba(5,2,16,0.8) 100%);
  padding: 0; overflow: hidden; cursor: pointer;
  transition: all 0.5s var(--transition);
  opacity: 0; transform: translateY(30px);
}
.building-card.visible { opacity: 1; transform: translateY(0); }
.building-card:hover {
  border-color: var(--cyan);
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(0,245,255,0.2), 0 0 40px rgba(0,245,255,0.05);
}
.building-visual {
  height: 120px; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.building-visual::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(139,92,246,0.1), rgba(0,102,255,0.1));
}
.building-icon {
  font-size: 3rem; position: relative; z-index: 2;
  filter: drop-shadow(0 0 20px rgba(0,245,255,0.5));
  transition: transform 0.4s; animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.building-card:hover .building-icon { transform: scale(1.15); }
.building-neon-line {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.6;
}
.building-info {
  padding: 24px;
}
.building-tag {
  font-family: var(--font-mono); font-size: 0.55rem;
  letter-spacing: 0.2em; color: var(--cyan);
  margin-bottom: 8px;
  padding: 3px 8px; border: 1px solid var(--border-bright);
  display: inline-block; background: rgba(0,245,255,0.05);
}
.building-name {
  font-family: var(--font-orb); font-size: 0.9rem;
  font-weight: 700; letter-spacing: 0.08em;
  color: #fff; margin-bottom: 8px;
}
.building-desc {
  font-size: 0.82rem; color: var(--text-dim);
  line-height: 1.6; margin-bottom: 16px;
}
.building-enter-btn {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.15em; color: var(--cyan);
  padding: 6px 16px; border: 1px solid var(--border);
  display: inline-block; transition: all 0.3s; cursor: pointer;
}
.building-enter-btn:hover {
  border-color: var(--cyan);
  background: rgba(0,245,255,0.08);
}

/* Building-specific neon accents */
.building-card[data-building="encryption"] { --b-accent: #00f5ff; }
.building-card[data-building="access"] { --b-accent: #8b5cf6; }
.building-card[data-building="cloud"] { --b-accent: #0066ff; }
.building-card[data-building="mobile"] { --b-accent: #00ff88; }
.building-card[data-building="phishing"] { --b-accent: #ff3333; }
.building-card[data-building="monitoring"] { --b-accent: #f59e0b; }
.building-card:hover .building-neon-line {
  background: linear-gradient(90deg, transparent, var(--b-accent, var(--cyan)), transparent);
  opacity: 1;
}

/* ============================================================
   WORLD 3: HACKER'S VAULT
   ============================================================ */
#world-vault {
  background: linear-gradient(to bottom, var(--bg), #0a0205 50%, var(--bg2));
}
.vault-intro {
  text-align: center; margin-bottom: 40px;
}
.vault-access-text {
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--red); letter-spacing: 0.2em;
  padding: 8px 24px; border: 1px solid rgba(255,51,51,0.3);
  display: inline-block; background: rgba(255,51,51,0.05);
  animation: redPulse 2s infinite;
}
@keyframes redPulse {
  0%, 100% { box-shadow: 0 0 10px rgba(255,51,51,0.2); }
  50% { box-shadow: 0 0 25px rgba(255,51,51,0.4); }
}

/* Rank sidebar */
.vault-layout {
  display: grid; grid-template-columns: 250px 1fr;
  gap: 40px; max-width: 1200px; margin: 40px auto 0;
}
.rank-panel {
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.5); padding: 24px;
  position: sticky; top: 80px; align-self: start;
}
.rank-panel-title {
  font-family: var(--font-orb); font-size: 0.75rem;
  font-weight: 700; letter-spacing: 0.15em;
  color: var(--cyan); margin-bottom: 20px;
  text-align: center;
}
.rank-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; margin-bottom: 4px;
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.1em; color: var(--text-dim);
  border: 1px solid transparent; transition: all 0.3s;
}
.rank-item.current {
  border-color: var(--cyan); color: var(--cyan);
  background: rgba(0,245,255,0.05);
  box-shadow: 0 0 15px rgba(0,245,255,0.1);
}
.rank-item.completed { color: var(--green); }
.rank-item.locked { opacity: 0.4; }
.rank-icon {
  width: 24px; height: 24px; border-radius: 50%;
  border: 1px solid currentColor; display: flex;
  align-items: center; justify-content: center;
  font-size: 0.7rem; flex-shrink: 0;
}
.rank-item.completed .rank-icon { background: rgba(0,255,136,0.15); }
.rank-item.current .rank-icon { background: rgba(0,245,255,0.15); animation: pulse 2s infinite; }

/* Mission cards */
.mission-grid {
  display: flex; flex-direction: column; gap: 20px;
}
.mission-card {
  border: 1px solid var(--border); background: rgba(0,0,0,0.5);
  padding: 28px; overflow: hidden; position: relative;
  transition: all 0.4s var(--transition); cursor: pointer;
  opacity: 0; transform: translateX(30px);
}
.mission-card.visible { opacity: 1; transform: translateX(0); }
.mission-card:hover {
  border-color: rgba(255,51,51,0.5);
  box-shadow: 0 10px 40px rgba(255,51,51,0.1);
}
.mission-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--red); opacity: 0.5;
}
.mission-card.completed::before { background: var(--green); }
.mission-header {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 12px;
}
.mission-number {
  font-family: var(--font-orb); font-size: 0.65rem;
  font-weight: 700; color: var(--red);
  padding: 4px 10px; border: 1px solid rgba(255,51,51,0.3);
  letter-spacing: 0.1em;
}
.mission-card.completed .mission-number {
  color: var(--green); border-color: rgba(0,255,136,0.3);
}
.mission-title {
  font-family: var(--font-orb); font-size: 0.9rem;
  font-weight: 700; color: #fff; letter-spacing: 0.05em;
}
.mission-desc {
  font-size: 0.85rem; color: var(--text-dim);
  line-height: 1.7; margin-bottom: 16px;
}
.mission-difficulty {
  display: flex; gap: 4px; margin-bottom: 16px;
}
.diff-bar {
  width: 20px; height: 3px; background: rgba(255,51,51,0.2);
}
.diff-bar.active { background: var(--red); box-shadow: 0 0 6px rgba(255,51,51,0.4); }
.mission-start-btn {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.15em; color: var(--red);
  padding: 8px 20px; border: 1px solid rgba(255,51,51,0.4);
  display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.3s; cursor: pointer;
  background: rgba(255,51,51,0.05);
}
.mission-start-btn:hover {
  background: rgba(255,51,51,0.15);
  box-shadow: 0 0 20px rgba(255,51,51,0.2);
}
.mission-card.completed .mission-start-btn {
  color: var(--green); border-color: rgba(0,255,136,0.4);
  background: rgba(0,255,136,0.05);
}
.mission-status {
  font-family: var(--font-mono); font-size: 0.55rem;
  letter-spacing: 0.15em; margin-left: auto;
}
.mission-status.pending { color: var(--text-dim); }
.mission-status.completed { color: var(--green); }

/* ============================================================
   WORLD 4: LOGIC LABYRINTH
   ============================================================ */
#world-logic {
  background: radial-gradient(ellipse at 50% 50%, rgba(139,92,246,0.06) 0%, var(--bg) 70%);
}
.maze-container {
  max-width: 1100px; margin: 60px auto 0;
}
.gate-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.gate-card {
  position: relative; border: 1px solid var(--border);
  background: rgba(0,0,0,0.4); backdrop-filter: blur(8px);
  padding: 32px; overflow: hidden; cursor: pointer;
  transition: all 0.5s var(--transition);
  opacity: 0; transform: translateY(30px);
}
.gate-card.visible { opacity: 1; transform: translateY(0); }
.gate-card:hover {
  border-color: var(--purple);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(139,92,246,0.2);
}
.gate-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(139,92,246,0.04), transparent);
  opacity: 0; transition: opacity 0.4s;
}
.gate-card:hover::before { opacity: 1; }
.gate-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}
.gate-number {
  font-family: var(--font-orb); font-size: 2rem;
  font-weight: 900; color: rgba(139,92,246,0.15);
}
.gate-icon {
  font-size: 1.8rem; filter: drop-shadow(0 0 10px rgba(139,92,246,0.4));
}
.gate-name {
  font-family: var(--font-orb); font-size: 0.85rem;
  font-weight: 700; color: #fff; letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.gate-challenge {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--purple); letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.gate-desc {
  font-size: 0.82rem; color: var(--text-dim);
  line-height: 1.6; margin-bottom: 16px;
}
.gate-choices {
  display: flex; gap: 10px; flex-wrap: wrap;
}
.gate-choice-btn {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.1em; padding: 8px 18px;
  border: 1px solid rgba(139,92,246,0.3);
  color: var(--purple); background: rgba(139,92,246,0.05);
  transition: all 0.3s; cursor: pointer;
}
.gate-choice-btn:hover {
  border-color: var(--purple); background: rgba(139,92,246,0.15);
  box-shadow: 0 0 15px rgba(139,92,246,0.2);
}
.gate-choice-btn.correct {
  border-color: var(--green); color: var(--green);
  background: rgba(0,255,136,0.1);
  box-shadow: 0 0 20px rgba(0,255,136,0.2);
}
.gate-choice-btn.incorrect {
  border-color: var(--red); color: var(--red);
  background: rgba(255,51,51,0.1);
}
.gate-result {
  font-family: var(--font-mono); font-size: 0.7rem;
  margin-top: 12px; padding: 12px 16px;
  border: 1px solid var(--border); display: none;
  line-height: 1.8;
}
.gate-result.show { display: block; animation: fadeIn 0.4s ease; }
.gate-result.correct-result {
  color: var(--green); border-color: rgba(0,255,136,0.3);
  background: rgba(0,255,136,0.03);
}
.gate-result.incorrect-result {
  color: var(--red); border-color: rgba(255,51,51,0.3);
  background: rgba(255,51,51,0.03);
}
/* Visualization area */
.gate-viz {
  margin-top: 16px; min-height: 60px;
  border: 1px solid var(--border); background: rgba(0,0,0,0.3);
  padding: 16px; display: flex; align-items: center;
  justify-content: center; gap: 6px; flex-wrap: wrap;
}
.viz-node {
  width: 36px; height: 36px; border-radius: 4px;
  border: 1px solid var(--border); display: flex;
  align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--text-dim); transition: all 0.3s;
}
.viz-node.active {
  border-color: var(--purple); color: var(--purple);
  background: rgba(139,92,246,0.1);
  box-shadow: 0 0 10px rgba(139,92,246,0.2);
}
.viz-node.visited {
  border-color: var(--green); color: var(--green);
  background: rgba(0,255,136,0.1);
}

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

/* ============================================================
   MODAL OVERLAY (for planet/building details)
   ============================================================ */
.uni-modal {
  position: fixed; inset: 0; z-index: 8000;
  background: rgba(0,0,0,0.92); backdrop-filter: blur(20px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.4s;
}
.uni-modal.open { opacity: 1; pointer-events: auto; }
.uni-modal-content {
  max-width: 700px; width: 90%; max-height: 80vh;
  overflow-y: auto; border: 1px solid var(--border-bright);
  background: var(--bg2); padding: 48px; position: relative;
  scrollbar-width: thin;
  scrollbar-color: rgba(0,245,255,0.3) transparent;
}
.uni-modal-close {
  position: absolute; top: 16px; right: 20px;
  font-family: var(--font-mono); font-size: 1.2rem;
  color: var(--cyan); cursor: pointer;
  transition: all 0.2s; background: none; border: none;
}
.uni-modal-close:hover { color: #fff; text-shadow: 0 0 10px var(--cyan); }
.uni-modal-tag {
  font-family: var(--font-mono); font-size: 0.6rem;
  color: var(--cyan); letter-spacing: 0.2em; margin-bottom: 12px;
  padding: 4px 10px; border: 1px solid var(--border-bright);
  display: inline-block; background: rgba(0,245,255,0.05);
}
.uni-modal-title {
  font-family: var(--font-orb); font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 900; color: #fff; margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.uni-modal-body {
  font-size: 0.92rem; color: var(--text-dim);
  line-height: 1.8; margin-bottom: 24px;
}
.uni-modal-demo {
  border: 1px solid var(--border); background: rgba(0,0,0,0.4);
  padding: 24px; margin-bottom: 20px;
}
.uni-modal-demo-title {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--cyan); letter-spacing: 0.15em;
  margin-bottom: 12px;
}
/* Code animation in modal */
.modal-code-block {
  font-family: var(--font-mono); font-size: 0.78rem;
  line-height: 1.8; color: var(--green);
  background: rgba(0,0,0,0.5); padding: 16px;
  border: 1px solid rgba(0,255,136,0.15);
  overflow-x: auto;
}
.modal-code-block .ck { color: var(--purple); }
.modal-code-block .cs { color: var(--green); }
.modal-code-block .cn { color: #f97316; }
.modal-code-block .cf { color: #fbbf24; }
.modal-code-block .cc { color: var(--cyan); }

/* Mission modal specific */
.mission-scenario {
  border: 1px solid rgba(255,51,51,0.2);
  background: rgba(255,51,51,0.03); padding: 20px;
  margin-bottom: 20px;
}
.mission-scenario-title {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--red); letter-spacing: 0.15em;
  margin-bottom: 10px;
}
.mission-scenario-text {
  font-size: 0.85rem; color: var(--text-dim); line-height: 1.7;
}
.mission-choices {
  display: flex; flex-direction: column; gap: 10px;
  margin: 20px 0;
}
.mission-choice {
  font-family: var(--font-mono); font-size: 0.75rem;
  padding: 14px 20px; border: 1px solid var(--border);
  color: var(--text-dim); cursor: pointer;
  transition: all 0.3s; display: flex;
  align-items: center; gap: 12px;
  background: rgba(0,0,0,0.3);
}
.mission-choice:hover {
  border-color: var(--cyan); color: var(--cyan);
  background: rgba(0,245,255,0.05);
}
.mission-choice.selected-correct {
  border-color: var(--green); color: var(--green);
  background: rgba(0,255,136,0.08);
}
.mission-choice.selected-wrong {
  border-color: var(--red); color: var(--red);
  background: rgba(255,51,51,0.08);
}
.mission-choice-marker {
  width: 20px; height: 20px; border: 1px solid currentColor;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; flex-shrink: 0;
}
.mission-feedback {
  font-family: var(--font-mono); font-size: 0.75rem;
  padding: 16px; margin-top: 16px;
  line-height: 1.7; display: none;
}
.mission-feedback.show { display: block; animation: fadeIn 0.4s ease; }
.mission-feedback.success {
  color: var(--green); border: 1px solid rgba(0,255,136,0.3);
  background: rgba(0,255,136,0.03);
}
.mission-feedback.failure {
  color: var(--red); border: 1px solid rgba(255,51,51,0.3);
  background: rgba(255,51,51,0.03);
}
.mission-complete-btn {
  font-family: var(--font-orb); font-size: 0.65rem;
  font-weight: 700; letter-spacing: 0.15em;
  padding: 12px 28px; border: 1px solid var(--green);
  color: var(--green); cursor: pointer;
  background: rgba(0,255,136,0.05);
  transition: all 0.3s; margin-top: 16px;
  display: none;
}
.mission-complete-btn.show { display: inline-block; }
.mission-complete-btn:hover {
  background: rgba(0,255,136,0.15);
  box-shadow: 0 0 20px rgba(0,255,136,0.2);
}

/* ============================================================
   FOOTER
   ============================================================ */
.uni-footer {
  padding: 60px; background: var(--bg);
  border-top: 1px solid var(--border);
  position: relative; overflow: hidden;
  text-align: center;
}
.uni-footer-inner {
  max-width: 800px; margin: 0 auto; position: relative; z-index: 2;
  display: flex; flex-direction: column;
  align-items: center; gap: 20px;
}
.uni-footer-logo {
  font-family: var(--font-orb); font-size: 1.2rem;
  font-weight: 900; letter-spacing: 0.1em;
}
.uni-footer-bracket { color: var(--cyan); text-shadow: 0 0 10px var(--cyan); }
.uni-footer-tagline {
  font-family: var(--font-mono); font-size: 0.65rem;
  color: var(--cyan); letter-spacing: 0.3em; opacity: 0.7;
}
.uni-footer-sep {
  width: 150px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}
.uni-footer-copy {
  font-family: var(--font-mono); font-size: 0.6rem;
  color: var(--text-dim); letter-spacing: 0.1em;
}

/* ============================================================
   WORLD SELECTOR PORTALS
   ============================================================ */
.portal-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 50px;
  max-width: 1200px;
}
.portal-card {
  position: relative;
  border: 1px solid var(--border);
  background: rgba(3, 8, 18, 0.4);
  backdrop-filter: blur(10px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 460px;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  transition: all 0.5s var(--transition);
  opacity: 0;
  transform: translateY(30px);
  text-decoration: none;
  color: inherit;
}
.portal-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.portal-card:hover {
  border-color: var(--cyan);
  box-shadow: 0 15px 45px rgba(0, 245, 255, 0.15);
  transform: translateY(-10px);
}
.portal-card-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 20%, var(--glow-color, var(--cyan)), transparent 60%);
  opacity: 0.1;
  mix-blend-mode: screen;
  pointer-events: none;
  transition: opacity 0.5s;
}
.portal-card:hover .portal-card-glow {
  opacity: 0.25;
}
.portal-visual {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border);
}
.portal-icon {
  font-size: 3.5rem;
  transition: transform 0.5s var(--transition);
  filter: drop-shadow(0 0 15px var(--glow-color, var(--cyan)));
}
.portal-card:hover .portal-icon {
  transform: scale(1.15) rotate(5deg);
}
.portal-name-overlay {
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 2px 6px;
  background: var(--bg);
}
.portal-info {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}
.portal-title {
  font-family: var(--font-orb);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.portal-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}
.portal-action-btn {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--cyan);
  letter-spacing: 0.15em;
  padding: 10px 16px;
  border: 1px solid var(--border);
  text-align: center;
  background: rgba(0, 245, 255, 0.02);
  transition: all 0.3s;
}
.portal-card:hover .portal-action-btn {
  border-color: var(--cyan);
  color: #fff;
  background: linear-gradient(135deg, var(--cyan-dark), var(--blue-dark));
  box-shadow: 0 0 15px rgba(0, 245, 255, 0.2);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .portal-grid { grid-template-columns: repeat(2, 1fr); }
  .planet-grid { grid-template-columns: repeat(2, 1fr); }
  .building-grid { grid-template-columns: repeat(2, 1fr); }
  .vault-layout { grid-template-columns: 1fr; }
  .rank-panel { position: static; }
}

@media (max-width: 768px) {
  /* Fix modals for mobile */
  .uni-modal-content { 
    padding: 20px; 
    width: 95%; /* Take up more width */
    max-height: 90vh; /* Taller on mobile */
    border-radius: 8px; /* Optional: soften edges for mobile feel */
  }
  .uni-modal-title {
    font-size: 1.2rem; /* Smaller title */
    margin-top: 15px; /* Give room for close button */
  }
  .uni-modal-close {
    top: 10px; right: 10px; /* Bring it in tighter */
    font-size: 1.5rem; /* Make it an easier tap target */
    background: rgba(0,0,0,0.5); /* Add a slight background so it's always visible */
    border-radius: 50%;
    width: 30px; height: 30px;
    display: flex; align-items: center; justify-content: center;
  }
  .workspace-section {
    padding: 12px; /* Less padding inside the workspace */
  }
}

@media (max-width: 480px) {
  .uni-section {
    padding: 70px 15px 40px 15px; /* Tighter padding on sections */
  }
  .uni-section-title {
    font-size: 1.8rem; /* Smaller section headers */
  }
  
  /* Portal Cards Mobile Fix */
  .portal-card {
    height: auto; /* Let the height be determined by content on mobile */
    min-height: 380px;
    padding-bottom: 20px;
  }
  
  /* Building/Planet Cards Mobile Fix */
  .building-card, .planet-card, .gate-card, .mission-card {
    padding: 16px; /* Less padding to fit content better */
  }
  .building-visual {
    height: 90px; /* Shorter visual area */
  }
  
  /* Preloader Mobile Fix */
  .uni-preloader-logo {
    font-size: 1.5rem;
  }
  .uni-preloader-log {
    width: 90vw;
    font-size: 0.55rem; /* Smaller logs so they don't wrap weirdly */
  }
  .hidden-blackhole {
    transform: scale(0.8); /* Shrink the black hole button slightly */
    margin-top: 20px;
  }
}

/* ============================================================
   UTILITY ANIMATIONS
   ============================================================ */
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(0,245,255,0.2); }
  50% { box-shadow: 0 0 40px rgba(0,245,255,0.5); }
}
@keyframes scanH {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

/* ============================================================
   BATTLE ARENA & IDENTITY HUB
   ============================================================ */
.arena-layout {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 30px;
  max-width: 1600px;
  margin: 90px auto 40px;
  padding: 0 20px;
  min-height: calc(100vh - 160px);
}
@media (max-width: 1024px) {
  .arena-layout {
    grid-template-columns: 1fr;
    margin-top: 80px;
  }
}

/* Shared panel and button components used in Sector 5 Battle Arena and other sub-worlds */
.hud-panel {
  border: 1px solid var(--border);
  background: rgba(4, 2, 10, 0.85);
  backdrop-filter: blur(10px);
  padding: 24px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 25px), calc(100% - 25px) 100%, 0 100%);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hud-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  font-family: var(--font-orb);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--cyan);
  display: flex;
  align-items: center;
  gap: 10px;
}

.threat-meter {
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border);
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.briefing-room {
  border: 1px solid var(--border);
  background: rgba(6, 2, 4, 0.85);
  backdrop-filter: blur(15px);
  padding: 35px;
  clip-path: polygon(0 0, calc(100% - 25px) 0, 100% 25px, 100% 100%, 25px 100%, 0 calc(100% - 25px));
  min-height: 550px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.tower-enter-btn {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--glow-color, var(--cyan));
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 12px;
  margin-top: 15px;
  align-self: flex-start;
  background: rgba(0,0,0,0.3);
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.3s;
}
.tower-enter-btn:hover {
  border-color: var(--cyan);
  background: rgba(0,245,255,0.05);
  color: var(--cyan);
}

.playground-btn {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  padding: 10px 20px;
  border: 1px solid var(--border);
  color: var(--cyan);
  background: rgba(0, 0, 0, 0.3);
  cursor: pointer;
  transition: all 0.3s;
  text-transform: uppercase;
}
.playground-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 245, 255, 0.05);
  box-shadow: 0 0 15px rgba(0, 245, 255, 0.15);
}

.bigo-select {
  background: #0d0a1b;
  border: 1px solid var(--border-bright);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 8px 12px;
  width: 100%;
  outline: none;
  cursor: pointer;
  transition: border-color 0.3s;
}
.bigo-select:hover, .bigo-select:focus {
  border-color: var(--cyan);
}

.terminal-field {
  background: transparent;
  border: none;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  outline: none;
  flex-grow: 1;
}

/* Avatar Showcase */
.avatar-container {
  position: relative;
  width: 150px;
  height: 150px;
  margin: 0 auto 20px;
}
.avatar-frame {
  position: absolute;
  inset: 0;
  border: 2px dashed rgba(0, 245, 255, 0.3);
  border-radius: 50%;
  animation: rotate 15s linear infinite;
}
.avatar-frame-glow {
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(0, 245, 255, 0.15);
  border-radius: 50%;
  animation: rotate 25s linear infinite reverse;
}
.avatar-image {
  position: absolute;
  inset: 12px;
  background: radial-gradient(circle, #0e1b30, #030812);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border);
  box-shadow: inset 0 0 20px rgba(0, 245, 255, 0.2);
}
.avatar-svg-glow {
  filter: drop-shadow(0 0 8px var(--glow-color, var(--cyan)));
  transition: filter 0.5s;
}

/* Ranks and Streaks */
.rank-badge-pill {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  padding: 4px 12px;
  border: 1px solid var(--border-bright);
  background: rgba(0, 245, 255, 0.05);
  display: inline-block;
  margin-top: 10px;
  color: var(--cyan);
}

/* Knowledge Power Score Gauge */
.kps-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 24px 0;
}
.kps-gauge {
  position: relative;
  width: 130px;
  height: 130px;
}
.kps-gauge-svg {
  transform: rotate(-90deg);
}
.kps-gauge-bg {
  fill: none;
  stroke: rgba(0, 245, 255, 0.05);
  stroke-width: 8px;
}
.kps-gauge-fill {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 8px;
  stroke-linecap: round;
  stroke-dasharray: 377;
  stroke-dashoffset: 377;
  transition: stroke-dashoffset 1s var(--transition), stroke 0.5s;
  filter: drop-shadow(0 0 6px var(--cyan));
}
.kps-gauge-info {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.kps-gauge-val {
  font-family: var(--font-orb);
  font-weight: 900;
  font-size: 1.6rem;
  color: #fff;
  line-height: 1;
}
.kps-gauge-lbl {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-top: 2px;
}

/* Battle Duel Visual Interface */
.duel-arena-box {
  border: 1px solid var(--border);
  background: rgba(3, 8, 18, 0.6);
  backdrop-filter: blur(12px);
  padding: 30px;
  min-height: 500px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.duel-header-hud {
  display: grid;
  grid-template-columns: 1fr 120px 1fr;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  margin-bottom: 25px;
}
.hud-fighter {
  display: flex;
  align-items: center;
  gap: 15px;
}
.hud-fighter.right-fighter {
  flex-direction: row-reverse;
  text-align: right;
}
.hud-avatar-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2.5px solid var(--hud-color, var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 0 10px rgba(0, 245, 255, 0.2);
}
.hud-fighter-info {
  flex-grow: 1;
}
.hud-name {
  font-family: var(--font-orb);
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
}
.hud-rank {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-dim);
}
.hud-stats-bar-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 5px;
}
.hud-bar-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  color: var(--text-dim);
}
.hud-bar-outer {
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  overflow: hidden;
  border-radius: 2px;
}
.hud-bar-fill {
  height: 100%;
  width: 100%;
  transition: width 0.3s ease;
}
.hud-bar-fill.shield {
  background: linear-gradient(90deg, #3b82f6, var(--cyan));
  box-shadow: 0 0 8px var(--cyan);
}
.hud-bar-fill.energy {
  background: linear-gradient(90deg, #f59e0b, #ef4444);
}
.hud-versus-node {
  text-align: center;
}
.hud-vs-badge {
  font-family: var(--font-orb);
  font-weight: 900;
  font-size: 1rem;
  color: var(--red);
  border: 1px solid rgba(255, 51, 51, 0.3);
  padding: 4px 10px;
  background: rgba(255, 51, 51, 0.05);
  display: inline-block;
}
.hud-versus-timer {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  margin-top: 6px;
}

/* Battle Projectile Track */
.battle-projection-track {
  height: 60px;
  position: relative;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  margin-bottom: 25px;
  overflow: hidden;
}
.projectile-beam {
  position: absolute;
  top: 50%;
  height: 4px;
  border-radius: 2px;
  transform: translateY(-50%);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.projectile-beam.left-to-right {
  left: 0;
  background: linear-gradient(90deg, var(--cyan), transparent);
  box-shadow: 0 0 15px var(--cyan);
}
.projectile-beam.right-to-left {
  right: 0;
  background: linear-gradient(-90deg, var(--red), transparent);
  box-shadow: 0 0 15px var(--red);
}

/* Question Area and Combo HUD */
.battle-question-deck {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 200px;
}
.battle-quest-text {
  font-family: var(--font-orb);
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.6;
  margin-bottom: 20px;
}
.battle-quest-choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}
@media (max-width: 640px) {
  .battle-quest-choices {
    grid-template-columns: 1fr;
  }
}
.battle-choice-node {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  padding: 14px 20px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-dim);
  text-align: left;
  cursor: pointer;
  transition: all 0.3s;
}
.battle-choice-node:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 245, 255, 0.04);
}
.battle-choice-node.correct {
  border-color: var(--green) !important;
  color: var(--green) !important;
  background: rgba(0, 255, 136, 0.08) !important;
  box-shadow: 0 0 15px rgba(0, 255, 136, 0.15);
}
.battle-choice-node.wrong {
  border-color: var(--red) !important;
  color: var(--red) !important;
  background: rgba(255, 51, 51, 0.08) !important;
}

/* Speed and Timer Bar */
.speed-meter-wrap {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.speed-bar-outer {
  flex-grow: 1;
  height: 4px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.speed-bar-fill {
  height: 100%;
  width: 100%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  transition: width 0.1s linear;
}

/* Combo popup text */
.combo-float-tag {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  font-family: var(--font-orb);
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--amber);
  text-shadow: 0 0 10px var(--amber);
  transition: all 0.4s var(--transition);
  z-index: 10;
  pointer-events: none;
}
.combo-float-tag.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Holographic Profile Scanner */
.scanner-grid {
  display: grid;
  grid-template-columns: 1fr 120px 1fr;
  align-items: stretch;
  gap: 20px;
  margin-top: 30px;
}
@media (max-width: 768px) {
  .scanner-grid {
    grid-template-columns: 1fr;
  }
}
.scanner-side {
  border: 1px solid var(--border);
  background: rgba(3, 8, 18, 0.4);
  padding: 30px;
  position: relative;
  overflow: hidden;
}
.scanner-line {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  opacity: 0;
  z-index: 2;
  pointer-events: none;
}
.scanner-side.scanning .scanner-line {
  animation: scanV 2.5s infinite ease-in-out;
  opacity: 0.7;
}
@keyframes scanV {
  0% { top: 0%; }
  50% { top: 100%; }
  100% { top: 0%; }
}
.comparison-stat-bar-group {
  margin-bottom: 16px;
}
.comparison-stat-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  margin-bottom: 5px;
}
.comparison-stat-label-val {
  font-family: var(--font-orb);
  color: #fff;
  font-weight: 700;
}
.comparison-stat-bar-outer {
  height: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  overflow: hidden;
}
.comparison-stat-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--cyan);
  transition: width 1s var(--transition);
}

/* Rankings Table */
.rankings-table-wrap {
  width: 100%;
  overflow-x: auto;
}
.rankings-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-align: left;
}
.rankings-table th {
  border-bottom: 1px solid var(--border-bright);
  padding: 12px 16px;
  color: var(--cyan);
  letter-spacing: 0.1em;
  font-family: var(--font-orb);
  font-size: 0.65rem;
}
.rankings-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
}
.rankings-table tr:hover td {
  color: #fff;
  background: rgba(0, 245, 255, 0.02);
}
.rankings-table tr.me td {
  color: var(--cyan);
  background: rgba(0, 245, 255, 0.05);
  border-left: 2px solid var(--cyan);
}
.rankings-badge {
  font-family: var(--font-orb);
  font-weight: 900;
  padding: 2px 8px;
  border: 1px solid rgba(0,245,255,0.2);
  background: rgba(0,245,255,0.05);
}
.rankings-table tr:nth-child(1) .rankings-badge { color: #f59e0b; border-color: rgba(245,158,11,0.3); background: rgba(245,158,11,0.05); }
.rankings-table tr:nth-child(2) .rankings-badge { color: #94a3b8; border-color: rgba(148,163,184,0.3); background: rgba(148,163,184,0.05); }
.rankings-table tr:nth-child(3) .rankings-badge { color: #b45309; border-color: rgba(180,83,9,0.3); background: rgba(180,83,9,0.05); }

/* ============================================================
   LIGHT THEME OVERRIDES
   ============================================================ */
body.light-theme {
  --bg: #f8fafc;
  --bg2: #ffffff;
  --bg3: #f1f5f9;
  --surface: rgba(2, 132, 199, 0.03);
  --surface2: rgba(2, 132, 199, 0.06);
  --border: rgba(15, 23, 42, 0.08);
  --border-bright: rgba(2, 132, 199, 0.3);
  --text: #1e293b;
  --text-dim: #475569;
  
  /* Adjusted for light theme contrast */
  --cyan: #0284c7;
  --cyan-dim: #0369a1;
  --cyan-dark: #0c4a6e;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --purple: #7c3aed;
  --purple-dim: #6d28d9;
  --pink: #db2777;
  --green: #16a34a;
  --green-dim: #15803d;
  --red: #dc2626;
  --amber: #d97706;
}

body.light-theme #uni-site {
  background: var(--bg);
}

body.light-theme #world-galaxy-page,
body.light-theme #world-cyber-page,
body.light-theme #world-vault-page,
body.light-theme #world-logic-page {
  background: var(--bg) !important;
}

body.light-theme .uni-topnav {
  background: rgba(255, 255, 255, 0.8) !important;
  border-bottom-color: var(--border) !important;
}
body.light-theme .uni-topnav.scrolled {
  background: rgba(255, 255, 255, 0.95) !important;
}
body.light-theme .uni-nav-title {
  color: #0f172a !important;
}

body.light-theme .uni-back-link {
  color: var(--cyan) !important;
}
body.light-theme .uni-world-pill {
  border-color: var(--border) !important;
  color: var(--text-dim) !important;
}
body.light-theme .uni-world-pill:hover,
body.light-theme .uni-world-pill.active {
  border-color: var(--cyan) !important;
  color: var(--cyan) !important;
  background: rgba(2, 132, 199, 0.05) !important;
}

body.light-theme .uni-theme-toggle {
  background: rgba(0, 0, 0, 0.02);
  border-color: var(--border);
  color: var(--text-dim);
}
body.light-theme .uni-theme-toggle:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(2, 132, 199, 0.05);
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.15);
}

/* Titles and labels */
body.light-theme .uni-section-title,
body.light-theme .landing-title,
body.light-theme .portal-title,
body.light-theme .planet-name,
body.light-theme .building-name,
body.light-theme .mission-title,
body.light-theme .gate-name,
body.light-theme .rank-panel-title,
body.light-theme .inspector-placeholder h3,
body.light-theme .concept-title {
  color: #0f172a !important;
  text-shadow: none !important;
}

body.light-theme .landing-subtitle,
body.light-theme .uni-section-sub,
body.light-theme .planet-desc,
body.light-theme .building-desc,
body.light-theme .mission-desc,
body.light-theme .gate-desc,
body.light-theme .inspector-placeholder p {
  color: #334155 !important;
}

/* Portal Rings & Canvases */
body.light-theme #landing-canvas,
body.light-theme #galaxy-canvas {
  opacity: 0.12 !important;
}
body.light-theme #uni-ambient-canvas {
  opacity: 0.08 !important;
}
body.light-theme .portal-ring {
  box-shadow: 0 0 30px rgba(2, 132, 199, 0.2), inset 0 0 30px rgba(2, 132, 199, 0.05) !important;
}

/* Cards & Panels */
body.light-theme .portal-card,
body.light-theme .planet-card,
body.light-theme .building-card,
body.light-theme .mission-card,
body.light-theme .gate-card,
body.light-theme .rank-panel,
body.light-theme .concept-inspector,
body.light-theme .viewport-container {
  background: #ffffff !important;
  border-color: var(--border) !important;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04) !important;
}

body.light-theme .portal-card:hover,
body.light-theme .planet-card:hover,
body.light-theme .building-card:hover,
body.light-theme .mission-card:hover,
body.light-theme .gate-card:hover {
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.08) !important;
}

body.light-theme .portal-visual,
body.light-theme .building-visual {
  background: #f8fafc !important;
  border-bottom-color: var(--border) !important;
}

body.light-theme .portal-name-overlay {
  background: #f1f5f9 !important;
  border-color: var(--border) !important;
  color: var(--text-dim) !important;
}

/* HUD and elements */
body.light-theme .viewport-hud {
  color: var(--cyan) !important;
  text-shadow: none !important;
}
body.light-theme .viewport-hint {
  color: var(--text-dim) !important;
}

/* Tab button controls */
body.light-theme .tab-btn {
  color: var(--text-dim) !important;
}
body.light-theme .tab-btn:hover {
  color: var(--cyan) !important;
}
body.light-theme .tab-btn.active {
  color: var(--cyan) !important;
  border-color: var(--border) !important;
  background: #f1f5f9 !important;
}

/* Buttons */
body.light-theme .portal-action-btn,
body.light-theme .planet-explore-btn,
body.light-theme .building-enter-btn,
body.light-theme .mission-start-btn,
body.light-theme .gate-choice-btn,
body.light-theme .sim-btn {
  border-color: var(--border) !important;
  background: #f1f5f9 !important;
  color: var(--text) !important;
}

body.light-theme .portal-action-btn:hover,
body.light-theme .planet-explore-btn:hover,
body.light-theme .building-enter-btn:hover {
  border-color: var(--cyan) !important;
  background: var(--cyan) !important;
  color: #ffffff !important;
}

body.light-theme .mission-start-btn:hover {
  border-color: var(--red) !important;
  background: var(--red) !important;
  color: #ffffff !important;
}

body.light-theme .gate-choice-btn:hover {
  border-color: var(--purple) !important;
  background: var(--purple) !important;
  color: #ffffff !important;
}

body.light-theme .sim-btn:hover {
  border-color: var(--cyan) !important;
  background: var(--cyan) !important;
  color: #ffffff !important;
}

/* Modals */
body.light-theme .uni-modal {
  background: rgba(248, 250, 252, 0.94) !important;
}
body.light-theme .uni-modal-content {
  background: #ffffff !important;
  border-color: var(--border) !important;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1) !important;
}
body.light-theme .uni-modal-close {
  color: var(--text-dim) !important;
}
body.light-theme .uni-modal-close:hover {
  color: #000000 !important;
}
body.light-theme .uni-modal-tag {
  background: #f1f5f9 !important;
  border-color: var(--border) !important;
  color: var(--cyan) !important;
}
body.light-theme .uni-modal-title {
  color: #0f172a !important;
}
body.light-theme .uni-modal-body {
  color: #334155 !important;
}
body.light-theme .uni-modal-demo {
  background: #f8fafc !important;
  border-color: var(--border) !important;
}

/* Mission Specifics in light theme */
body.light-theme .mission-choice {
  background: #ffffff !important;
  border-color: var(--border) !important;
  color: var(--text) !important;
}
body.light-theme .mission-choice:hover {
  border-color: var(--cyan) !important;
  background: #f1f5f9 !important;
}
body.light-theme .mission-choice.selected-correct {
  border-color: var(--green) !important;
  background: rgba(22, 163, 74, 0.05) !important;
  color: var(--green) !important;
}
body.light-theme .mission-choice.selected-wrong {
  border-color: var(--red) !important;
  background: rgba(220, 38, 38, 0.05) !important;
  color: var(--red) !important;
}
body.light-theme .mission-scenario {
  background: #fef2f2 !important;
  border-color: rgba(220, 38, 38, 0.15) !important;
}

/* Rank Items */
body.light-theme .rank-item {
  color: var(--text-dim) !important;
}
body.light-theme .rank-item.current {
  border-color: var(--cyan) !important;
  color: var(--cyan) !important;
  background: rgba(2, 132, 199, 0.05) !important;
}

/* Logic gate outcomes */
body.light-theme .gate-result {
  background: #f8fafc !important;
  border-color: var(--border) !important;
}

/* Visual code blocks */
body.light-theme .modal-code-block {
  background: #0f172a !important; /* Keep code blocks dark for visual consistency */
  color: #34d399 !important;
}

/* Footer logo */
body.light-theme .uni-footer {
  background: #f1f5f9 !important;
  border-top-color: var(--border) !important;
}
body.light-theme .uni-footer-logo {
  color: #0f172a !important;
}

/* Light Theme Overrides for Battle Arena panels & components */
body.light-theme .hud-panel {
  background: #ffffff !important;
  border-color: var(--border) !important;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04) !important;
}

body.light-theme .threat-meter {
  background: #f8fafc !important;
  border-color: var(--border) !important;
}

body.light-theme .briefing-room {
  background: #ffffff !important;
  border-color: var(--border) !important;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04) !important;
}

body.light-theme .tower-enter-btn {
  border-color: var(--border) !important;
  background: #f1f5f9 !important;
  color: var(--text) !important;
}
body.light-theme .tower-enter-btn:hover {
  border-color: var(--cyan) !important;
  background: var(--cyan) !important;
  color: #ffffff !important;
}

body.light-theme .playground-btn {
  border-color: var(--border) !important;
  background: #f1f5f9 !important;
  color: var(--text) !important;
}
body.light-theme .playground-btn:hover {
  border-color: var(--cyan) !important;
  background: var(--cyan) !important;
  color: #ffffff !important;
}

body.light-theme .bigo-select {
  background: #ffffff !important;
  border-color: var(--border) !important;
  color: var(--text) !important;
}
body.light-theme .bigo-select:hover,
body.light-theme .bigo-select:focus {
  border-color: var(--cyan) !important;
}

body.light-theme .terminal-field {
  color: var(--text) !important;
}

/* --- BLACK HOLE BUTTON STYLES --- */
.hidden-blackhole {
  opacity: 0;
  pointer-events: none;
  margin-top: 40px;
  position: relative;
  width: 160px;
  height: 160px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 1s ease;
  perspective: 800px;
}

.hidden-blackhole.show {
  opacity: 1;
  pointer-events: auto;
  cursor: pointer;
}

/* The dark center */
.event-horizon {
  position: relative;
  width: 70px;
  height: 70px;
  background: #000;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 2px;
  z-index: 5;
box-shadow: inset 0 0 15px rgba(0,0,0,1), 0 0 20px rgba(255, 0, 0, 0.5);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.accretion-disk, .accretion-disk-glow {
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  /* CHANGED: Red, Gold, and Orange-Red gradient */
  background: conic-gradient(from 0deg, transparent 0%, rgba(255, 0, 0, 0.1) 20%, rgba(255, 215, 0, 0.8) 50%, rgba(255, 69, 0, 1) 80%, transparent 100%);
  animation: spinDisk 2.5s linear infinite;
  z-index: 1;
}

.accretion-disk-glow {
  filter: blur(15px);
  opacity: 0.7;
}

.hidden-blackhole:hover .event-horizon {
  transform: scale(0.85);
  color: #ffd700; /* Gold text */
  box-shadow: inset 0 0 20px rgba(0,0,0,1), 0 0 30px rgba(255, 69, 0, 0.8); /* Fiery orange glow */
}

.hidden-blackhole:hover .accretion-disk, 
.hidden-blackhole:hover .accretion-disk-glow {
  animation-duration: 1s; /* Spins faster */
  transform: rotateX(65deg) scale(1.2); /* Expands */
}

@keyframes spinDisk {
  0% { transform: rotateX(65deg) rotateZ(0deg); }
  100% { transform: rotateX(65deg) rotateZ(360deg); }
}