/* Eastern Upside-Down Island — base stylesheet */
:root{
  --bg-blur: 0px;
  --accent: #c9a2ff;
  --accent-2:#6fe7ff;
  --accent-3:#ff9ef7;
  --text: #f6f6fb;
  --text-dim:#d7d7ef;
  --shadow: rgba(2, 6, 23, .5);
  --card: rgba(16, 12, 40, .55);
  --ui: rgba(255,255,255,.12);
  --particle-speed: 15s;
  --mystical-glow: rgba(201, 162, 255, 0.3);
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font: 500 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Helvetica, Arial, 'Apple Color Emoji','Segoe UI Emoji';
  color: var(--text);
  background: #0b0720;
  overflow-x:hidden;
}

.bg{
  position: fixed;
  inset: 0;
  background:
    radial-gradient(1200px 600px at 70% -10%, rgba(111,231,255,.18), transparent 60%),
    radial-gradient(900px 500px at 20% 110%, rgba(201,162,255,.22), transparent 60%),
    url('assets/background.png') center / cover no-repeat;
  filter: blur(var(--bg-blur));
  transform: translateZ(0);
  z-index: -1;
}

/* Glassy cards */
.title-card{
  margin: clamp(16px, 4vw, 40px) auto 8px;
  padding: 16px 20px;
  max-width: 900px;
  background: var(--card);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  box-shadow: 0 10px 30px var(--shadow);
  backdrop-filter: blur(4px);
}
.title-card h1{
  margin:0 0 6px 0;
  font-size: clamp(28px, 4.5vw, 44px);
  letter-spacing:.2px;
}
.subtitle{ margin:0; color: var(--text-dim); }

.lore{
  margin: 0 auto;
  max-width: 900px;
  padding: 14px 20px 24px;
  background: var(--card);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  box-shadow: 0 8px 24px var(--shadow);
  backdrop-filter: blur(6px);
  transition: all 0.3s ease;
}

.lore:hover {
  box-shadow: 0 12px 32px var(--shadow), 0 0 20px rgba(111,231,255,.1);
  border-color: rgba(111,231,255,.2);
}

/* Discovery sections */
.discoveries {
  max-width: 900px;
  margin: 20px auto;
  padding: 0 12px;
}

.discovery-trigger {
  display: block;
  width: 100%;
  margin: 12px 0;
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--card), rgba(16, 12, 40, .7));
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 14px;
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  position: relative;
  overflow: hidden;
}

.discovery-trigger::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(111,231,255,.1), transparent);
  transition: left 0.5s ease;
}

.discovery-trigger:hover::before {
  left: 100%;
}

.discovery-trigger:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow), 0 0 15px rgba(201,162,255,.15);
  border-color: rgba(201,162,255,.3);
}

.discovery-content {
  margin: 8px 0 16px;
  padding: 18px 24px;
  background: rgba(8, 6, 20, .8);
  border: 1px solid rgba(111,231,255,.2);
  border-radius: 12px;
  backdrop-filter: blur(8px);
  animation: fadeInExpand 0.4s ease-out;
}

.discovery-content p {
  margin: 0 0 12px 0;
  line-height: 1.7;
}

.discovery-effect {
  font-style: italic;
  color: var(--accent-2);
  font-size: 14px;
  text-shadow: 0 0 8px rgba(111,231,255,.4);
}

/* Exits */
.links{
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 12px;
  max-width: 980px;
  margin: 18px auto;
  padding: 0 12px;
}

.exit::after{
  content: attr(data-dir);
  position: absolute;
  bottom: 8px; right: 12px;
  font-size: 11px;
  opacity:.6;
}

/* UI buttons */
.interact{
  display:flex; gap:10px; justify-content:center;
  margin: 8px auto 18px;
  flex-wrap: wrap;
}
.ui{
  background: var(--ui);
  border:1px solid rgba(255,255,255,.18);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform .18s ease, background .2s ease, box-shadow .2s ease;
  position: relative;
  overflow: hidden;
}
.ui:hover{ 
  background: rgba(255,255,255,.22); 
  transform: translateY(-1px); 
  box-shadow: 0 4px 15px rgba(111,231,255,.1);
}
.ui:active{ transform: translateY(0); }
.ui[aria-pressed="true"] {
  background: rgba(111,231,255,.2);
  border-color: rgba(111,231,255,.4);
  box-shadow: 0 0 12px rgba(111,231,255,.2);
}

/* Floating Particles */
.particles-container {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.5s ease;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: radial-gradient(circle, rgba(111,231,255,.8), rgba(201,162,255,.4));
  border-radius: 50%;
  opacity: 0;
  animation: floatParticle var(--particle-speed) infinite linear;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; --drift: -20px; }
.particle:nth-child(2) { left: 20%; animation-delay: -2s; --drift: 30px; }
.particle:nth-child(3) { left: 30%; animation-delay: -4s; --drift: -15px; }
.particle:nth-child(4) { left: 40%; animation-delay: -6s; --drift: 25px; }
.particle:nth-child(5) { left: 50%; animation-delay: -8s; --drift: -10px; }
.particle:nth-child(6) { left: 60%; animation-delay: -10s; --drift: 20px; }
.particle:nth-child(7) { left: 70%; animation-delay: -12s; --drift: -25px; }
.particle:nth-child(8) { left: 80%; animation-delay: -14s; --drift: 15px; }
.particle:nth-child(9) { left: 90%; animation-delay: -16s; --drift: -30px; }
.particle:nth-child(10) { left: 95%; animation-delay: -18s; --drift: 10px; }

/* Interactive Anchor */
.interactive-anchor {
  position: fixed;
  top: 15%;
  right: 8%;
  width: 60px;
  height: 80px;
  cursor: pointer;
  z-index: 2;
  transition: transform 0.3s ease;
}

.interactive-anchor:hover {
  transform: scale(1.1) rotate(5deg);
}

.anchor-glow {
  position: absolute;
  top: -10px; left: -10px;
  width: 80px; height: 100px;
  background: radial-gradient(ellipse, var(--mystical-glow), transparent 70%);
  border-radius: 50%;
  opacity: 0;
  animation: pulseGlow 3s ease-in-out infinite;
}

.anchor-body {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 32px;
  color: var(--accent);
  text-shadow: 0 0 15px rgba(201,162,255,.8);
  filter: drop-shadow(0 0 8px rgba(111,231,255,.4));
}

.anchor-chain {
  position: absolute;
  top: -20px; left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 200px;
  background: linear-gradient(to bottom, 
    rgba(201,162,255,.8) 0%, 
    rgba(111,231,255,.6) 50%, 
    transparent 100%);
  box-shadow: 0 0 6px rgba(111,231,255,.4);
  pointer-events: none;
}

.credits{
  text-align:center;
  font-size: 14px;
  color: var(--text-dim);
  margin: 12px auto 30px;
  padding: 8px 14px;
  max-width: 900px;
}

/* High-contrast mode (toggled) */
.hc body, body.hc{
  --card: rgba(0,0,0,.65);
  --ui: rgba(255,255,255,.28);
  --bg-blur: 0px;
}

/* Mystical atmosphere effects */
body.mystical-atmosphere .bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 800px 400px at 30% 20%, rgba(255,158,247,.05), transparent 60%),
    radial-gradient(ellipse 600px 300px at 80% 80%, rgba(201,162,255,.08), transparent 60%);
  animation: atmosphericShift 20s ease-in-out infinite alternate;
}

/* Keyframe Animations */
@keyframes fadeInExpand {
  from {
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes floatParticle {
  0% {
    opacity: 0;
    transform: translateY(100vh) translateX(0) rotate(0deg);
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(-20vh) translateX(var(--drift, 0)) rotate(360deg);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.2);
  }
}

@keyframes atmosphericShift {
  0% {
    opacity: 0.3;
    transform: translateX(-20px) scale(1);
  }
  100% {
    opacity: 0.7;
    transform: translateX(20px) scale(1.1);
  }
}

/* Enhanced Exit Transitions */
.exit {
  --ring: 0 0 0 0 rgba(111,231,255,.0);
  display: inline-block;
  text-decoration:none;
  border-radius: 14px;
  padding: 14px 16px;
  text-align:center;
  background: var(--ui);
  border: 1px solid rgba(255,255,255,.14);
  color: var(--text);
  backdrop-filter: blur(4px) saturate(110%);
  transition: all .3s ease;
  box-shadow: var(--ring);
  position: relative;
  overflow: hidden;
}

.exit::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(111,231,255,.15), transparent);
  transition: left 0.6s ease;
}

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

.exit:hover{
  transform: translateY(-3px) scale(1.02);
  background: rgba(255,255,255,.18);
  box-shadow: 0 0 0 6px rgba(111,231,255,.15), 0 8px 25px rgba(2, 6, 23, .4);
}

.exit.flip:hover{ 
  transform: translateY(-3px) scaleX(-1) scale(1.02); 
}

/* Responsive */
@media (max-width:720px){
  .links{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .interact { gap: 8px; flex-wrap: wrap; }
  .ui { padding: 8px 12px; font-size: 14px; }
  .interactive-anchor { 
    top: 10%; right: 5%; 
    width: 45px; height: 60px; 
  }
  .anchor-body { font-size: 24px; }
  .discovery-trigger {
    padding: 14px 16px;
    font-size: 15px;
  }
}