/* ============================================
   Interactive Hub Navigation
   ============================================ */

/* ===== Hub Container ===== */

.hub {
  position: fixed;
  inset: 0;
  background: var(--bg-void);
  overflow: hidden;
  z-index: 100;
}

.hub__space {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  perspective: 1000px;
}

/* ===== Starfield Background ===== */

.hub__stars {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hub__star {
  position: absolute;
  width: 2px;
  height: 2px;
  background: #fff;
  border-radius: 50%;
  opacity: 0.5;
  animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ===== Grid Floor ===== */

.hub__grid {
  position: absolute;
  bottom: 0;
  left: -50%;
  width: 200%;
  height: 60%;
  background:
    linear-gradient(90deg, var(--color-accent) 1px, transparent 1px) 0 0 / 80px 80px,
    linear-gradient(0deg, var(--color-accent) 1px, transparent 1px) 0 0 / 80px 80px;
  transform: perspective(500px) rotateX(60deg);
  transform-origin: center top;
  opacity: 0.15;
  animation: grid-scroll 20s linear infinite;
}

@keyframes grid-scroll {
  from { background-position: 0 0, 0 0; }
  to { background-position: 80px 80px, 80px 80px; }
}

/* ===== Central Title ===== */

.hub__title {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 10;
  pointer-events: none;
}

.hub__name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-sm);
}

.hub__tagline {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

/* ===== Floating Nodes ===== */

.hub__nodes {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.node {
  position: absolute;
  cursor: pointer;
  transition: transform 0.3s var(--ease-smooth);
}

.node:hover {
  transform: scale(1.1);
  z-index: 100;
}

.node__core {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 2px solid var(--color-accent);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 0.3s var(--ease-smooth);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

.node:hover .node__core {
  border-color: #fff;
  box-shadow: var(--glow-md), 0 0 50px rgba(0, 0, 0, 0.8);
  background: var(--bg-elevated);
}

.node__icon {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
  transition: transform 0.3s var(--ease-bounce), color 0.3s;
  letter-spacing: 0.05em;
}

.node:hover .node__icon {
  transform: scale(1.1);
  color: #fff;
}

.node__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.node:hover .node__label {
  color: var(--color-accent);
}

/* Node ring animation */
.node__ring {
  position: absolute;
  inset: -10px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  opacity: 0;
  animation: ring-pulse 2s ease-out infinite;
}

.node:hover .node__ring {
  animation: ring-pulse-fast 1s ease-out infinite;
}

@keyframes ring-pulse {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(1.5); opacity: 0; }
}

@keyframes ring-pulse-fast {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* Node connector lines */
.node__connector {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  transform-origin: left center;
  opacity: 0.3;
}

/* Node colors */
.node--bio .node__core { border-color: var(--neon-cyan); }
.node--bio .node__ring { border-color: var(--neon-cyan); }
.node--bio:hover .node__core { box-shadow: 0 0 20px var(--neon-cyan-glow), 0 0 40px var(--neon-cyan-glow); }

.node--music .node__core { border-color: var(--neon-magenta); }
.node--music .node__ring { border-color: var(--neon-magenta); }
.node--music:hover .node__core { box-shadow: 0 0 20px var(--neon-magenta-glow), 0 0 40px var(--neon-magenta-glow); }

.node--projects .node__core { border-color: var(--neon-green); }
.node--projects .node__ring { border-color: var(--neon-green); }
.node--projects:hover .node__core { box-shadow: 0 0 20px var(--neon-green-glow), 0 0 40px var(--neon-green-glow); }

.node--contact .node__core { border-color: var(--neon-amber); }
.node--contact .node__ring { border-color: var(--neon-amber); }
.node--contact:hover .node__core { box-shadow: 0 0 20px var(--neon-amber-glow), 0 0 40px var(--neon-amber-glow); }

/* ===== Planet Node Styles ===== */
.node {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.node__planet {
  display: flex;
  align-items: center;
  justify-content: center;
}

.node .node__label {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: var(--space-sm);
}

.node__planet img {
  animation: planet-pulse 4s ease-in-out infinite;
}

.node:hover .node__planet img {
  transform: scale(1.15);
  filter: drop-shadow(0 0 30px currentColor) brightness(1.2);
}

.node--bio:hover .node__planet img {
  filter: drop-shadow(0 0 30px rgba(0, 240, 255, 0.8)) brightness(1.2);
}

.node--music:hover .node__planet img {
  filter: drop-shadow(0 0 30px rgba(255, 0, 255, 0.8)) brightness(1.2);
}

.node--projects:hover .node__planet img {
  filter: drop-shadow(0 0 30px rgba(255, 191, 0, 0.8)) brightness(1.2);
}

.node--contact:hover .node__planet img {
  filter: drop-shadow(0 0 30px rgba(0, 255, 136, 0.8)) brightness(1.2);
}

@keyframes planet-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* ===== Room Container ===== */

.room {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.9);
  transition: all 0.5s var(--ease-smooth);
  overflow-y: auto;
  overflow-x: hidden;
}

.room.active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.room__inner {
  min-height: 100vh;
  padding: var(--space-2xl) var(--space-lg);
  display: flex;
  flex-direction: column;
}

.room__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--bg-elevated);
}

.room__title {
  font-size: var(--text-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.room__title-icon {
  font-family: var(--font-mono);
  font-size: 0.8em;
  opacity: 0.5;
}

.room__back {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--bg-elevated);
  background: var(--bg-surface);
  cursor: pointer;
  transition: all 0.2s var(--ease-smooth);
}

.room__back:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.room__content {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding-bottom: var(--space-2xl);
}

.room--music .room__content {
  max-width: 1400px;
}

/* ===== Room Themes ===== */

.room--bio { --room-accent: var(--neon-cyan); }
.room--music { --room-accent: var(--neon-magenta); }
.room--projects { --room-accent: var(--neon-green); }
.room--contact { --room-accent: var(--neon-amber); }

/* ===== Snake Game (Contact Room) ===== */

.snake-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 100;
  pointer-events: none;
}

.snake-instructions {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--neon-amber);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 101;
  opacity: 0.7;
  transition: opacity 0.3s;
  text-shadow: 0 0 10px var(--neon-amber);
}

.snake-instructions:hover {
  opacity: 1;
}

.room--contact .room__inner {
  position: relative;
  z-index: 1;
}

.room__title {
  color: var(--room-accent, var(--color-accent));
}

/* ===== Navigation Hints ===== */

.hub__hints {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-lg);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  z-index: 50;
}

.hub__hint {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.hub__hint kbd {
  padding: 2px 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--bg-card);
  border-radius: 3px;
  font-family: inherit;
}

/* ===== Minimap ===== */

.minimap {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 150px;
  height: 100px;
  background: var(--bg-surface);
  border: 1px solid var(--bg-elevated);
  z-index: 300;
  opacity: 0.8;
  display: none;
}

.room.active ~ .minimap {
  display: block;
}

.minimap__dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.2s;
}

.minimap__dot:hover {
  transform: scale(1.3);
}

.minimap__dot--bio { background: var(--neon-cyan); top: 20%; left: 20%; }
.minimap__dot--music { background: var(--neon-magenta); top: 20%; right: 20%; }
.minimap__dot--projects { background: var(--neon-green); bottom: 20%; left: 20%; }
.minimap__dot--contact { background: var(--neon-amber); bottom: 20%; right: 20%; }
.minimap__dot--hub { background: #fff; top: 50%; left: 50%; transform: translate(-50%, -50%); }

/* ===== Transition Effects ===== */

.hub.zooming-out {
  animation: zoom-out 0.5s var(--ease-smooth) forwards;
}

@keyframes zoom-out {
  to {
    transform: scale(0.8);
    opacity: 0;
  }
}

.hub.zooming-in {
  animation: zoom-in 0.5s var(--ease-smooth) forwards;
}

@keyframes zoom-in {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* ===== Floating Animation ===== */

.node--floating {
  animation: node-float 6s ease-in-out infinite;
}

.node--floating:nth-child(2) { animation-delay: -1.5s; }
.node--floating:nth-child(3) { animation-delay: -3s; }
.node--floating:nth-child(4) { animation-delay: -4.5s; }

@keyframes node-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* ===== Mobile Responsive ===== */

@media (max-width: 768px) {
  .node__core {
    width: 90px;
    height: 90px;
  }

  .node__icon {
    font-size: 1.5rem;
  }

  .hub__name {
    font-size: clamp(1.5rem, 8vw, 3rem);
  }

  .hub__hints {
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
  }

  .minimap {
    display: none !important;
  }

  .room--music .room__content {
    max-width: 100%;
  }
}

/* ===== Interactive Elements in Rooms ===== */

.interactive-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-elevated);
  padding: var(--space-lg);
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.interactive-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--room-accent) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.interactive-card::after {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(45deg, var(--room-accent), var(--neon-magenta), var(--room-accent));
  opacity: 0;
  z-index: -1;
  filter: blur(10px);
  transition: opacity 0.3s;
}

.interactive-card:hover {
  transform: translateY(-12px) scale(1.03);
  border-color: var(--room-accent);
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.5),
    0 0 40px color-mix(in srgb, var(--room-accent) 50%, transparent);
}

.interactive-card:hover::before {
  opacity: 0.15;
}

.interactive-card:hover::after {
  opacity: 0.8;
}

.interactive-card:active {
  transform: translateY(-6px) scale(1.01);
  transition: transform 0.1s;
}

.interactive-card__content {
  position: relative;
  z-index: 1;
}

/* ===== Draggable Items ===== */

.draggable {
  cursor: grab;
  user-select: none;
}

.draggable:active {
  cursor: grabbing;
}

.draggable.dragging {
  opacity: 0.8;
  transform: scale(1.05);
  z-index: 1000;
}

/* ===== Pixel Art Sprites ===== */

.hub__sprites {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

.hub__sprite {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  transition: transform 0.3s ease;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes pulse-glow {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes portrait-glow {
  0%, 100% {
    box-shadow: 0 0 20px var(--neon-cyan-glow), 0 0 40px rgba(0, 240, 255, 0.2);
  }
  50% {
    box-shadow: 0 0 30px var(--neon-cyan-glow), 0 0 60px rgba(0, 240, 255, 0.3);
  }
}