/* ============================================
   PhobiaVR — Premium Styles
   Ultra-Realistic with Glassmorphism & Animations
   ============================================ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #06060b;
  --surface: rgba(18, 18, 30, 0.7);
  --surface-solid: #12121e;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --text: #eaeaf2;
  --text-dim: #7a7a96;
  --accent: #7c6aff;
  --accent-light: #9d8cff;
  --accent-glow: rgba(124, 106, 255, 0.35);
  --accent-glow-strong: rgba(124, 106, 255, 0.6);
  --social: #ff6b9d;
  --social-glow: rgba(255, 107, 157, 0.3);
  --acro: #ffa94d;
  --acro-glow: rgba(255, 169, 77, 0.3);
  --aqua: #4dc9f6;
  --aqua-glow: rgba(77, 201, 246, 0.3);
  --nycto: #a78bfa;
  --nycto-glow: rgba(167, 139, 250, 0.3);
  --easy: #4ade80;
  --medium: #fbbf24;
  --hard: #f87171;
  --glass-bg: rgba(14, 14, 24, 0.55);
  --glass-border: rgba(255, 255, 255, 0.08);
  --card-radius: 20px;
  --transition-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color 0.3s var(--transition-smooth);
}

a:hover {
  color: #fff;
  text-shadow: 0 0 15px var(--accent-glow);
}

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

/* ---- Loading Screen ---- */
.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-text {
  margin-top: 1.2rem;
  color: var(--text-dim);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: loadingPulse 1.5s ease-in-out infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes loadingPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ---- App Container ---- */
.app {
  position: relative;
  z-index: 1;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(124,106,255,0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 50%, rgba(255,107,157,0.08) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 80%, rgba(77,201,246,0.08) 0%, transparent 55%),
    radial-gradient(circle at 50% 50%, rgba(124,106,255,0.04) 0%, transparent 80%);
  animation: heroPulse 10s ease-in-out infinite alternate;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    conic-gradient(from 0deg at 30% 30%, transparent 0deg, rgba(124,106,255,0.03) 60deg, transparent 120deg),
    conic-gradient(from 180deg at 70% 70%, transparent 0deg, rgba(255,107,157,0.03) 60deg, transparent 120deg);
  animation: heroPulse 15s ease-in-out infinite alternate-reverse;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, transparent 30%, var(--bg) 70%);
  pointer-events: none;
}

@keyframes heroPulse {
  0% { opacity: 0.5; transform: scale(1) rotate(0deg); }
  50% { opacity: 0.8; }
  100% { opacity: 1; transform: scale(1.08) rotate(1deg); }
}

/* Floating orbs in hero */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0;
  animation: orbFloat 8s ease-in-out infinite;
}

.hero-orb:nth-child(1) {
  width: 300px;
  height: 300px;
  background: var(--accent);
  top: 20%;
  left: 10%;
  animation-delay: 0s;
  animation-duration: 12s;
}

.hero-orb:nth-child(2) {
  width: 200px;
  height: 200px;
  background: var(--social);
  top: 60%;
  right: 15%;
  animation-delay: 2s;
  animation-duration: 10s;
}

.hero-orb:nth-child(3) {
  width: 250px;
  height: 250px;
  background: var(--aqua);
  bottom: 20%;
  left: 30%;
  animation-delay: 4s;
  animation-duration: 14s;
}

@keyframes orbFloat {
  0%, 100% { opacity: 0.06; transform: translateY(0) scale(1); }
  25% { opacity: 0.1; transform: translateY(-30px) scale(1.1); }
  50% { opacity: 0.08; transform: translateY(-10px) scale(0.95); }
  75% { opacity: 0.12; transform: translateY(-40px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 750px;
  padding: 2rem;
}

.hero-title {
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: -3px;
  margin-bottom: 0.5rem;
  line-height: 1.1;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeUp 1s var(--transition-smooth) 0.3s forwards;
}

.accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 50%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  position: relative;
}

.accent::after {
  content: 'VR';
  position: absolute;
  left: 0;
  top: 0;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 50%, #c4b5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: blur(20px);
  opacity: 0.5;
  z-index: -1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: rgba(124, 106, 255, 0.1);
  border: 1px solid rgba(124, 106, 255, 0.2);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeUp 0.8s var(--transition-smooth) 0.1s forwards;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--easy);
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeUp 1s var(--transition-smooth) 0.5s forwards;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeUp 1s var(--transition-smooth) 0.7s forwards;
}

.scroll-hint {
  color: var(--accent-light);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 1px;
  opacity: 0;
  animation: heroFadeUp 1s var(--transition-smooth) 0.9s forwards, bounce 2.5s ease-in-out 2s infinite;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.scroll-hint::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.1% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes heroFadeUp {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(12px); }
}

/* ---- Section Transitions ---- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--transition-smooth), transform 0.8s var(--transition-smooth);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---- Sessions ---- */
.sessions {
  padding: 5rem 2rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-dim) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  color: var(--text-dim);
  margin-bottom: 3.5rem;
  font-size: 1.05rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* ---- Cards Glassmorphism ---- */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius);
  padding: 2rem 1.5rem;
  text-align: left;
  cursor: pointer;
  transition: 
    transform 0.4s var(--transition-smooth), 
    box-shadow 0.4s var(--transition-smooth), 
    border-color 0.4s var(--transition-smooth),
    background 0.4s var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: var(--card-radius) var(--card-radius) 0 0;
  opacity: 0.8;
  transition: opacity 0.4s ease, height 0.4s ease;
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--card-radius);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.card-social::before { background: linear-gradient(90deg, var(--social), #ff8fb8); }
.card-acro::before { background: linear-gradient(90deg, var(--acro), #ffcc80); }
.card-aqua::before { background: linear-gradient(90deg, var(--aqua), #80ddff); }
.card-nycto::before { background: linear-gradient(90deg, var(--nycto), #c4b5fd); }

.card-social::after { background: radial-gradient(ellipse at top, var(--social-glow), transparent 70%); }
.card-acro::after { background: radial-gradient(ellipse at top, var(--acro-glow), transparent 70%); }
.card-aqua::after { background: radial-gradient(ellipse at top, var(--aqua-glow), transparent 70%); }
.card-nycto::after { background: radial-gradient(ellipse at top, var(--nycto-glow), transparent 70%); }

.card:hover {
  transform: translateY(-8px) scale(1.02);
  background: rgba(22, 22, 38, 0.8);
}

.card:hover::before { height: 3px; opacity: 1; }
.card:hover::after { opacity: 0.15; }

.card-social:hover { 
  border-color: rgba(255, 107, 157, 0.3);
  box-shadow: 0 20px 60px rgba(255, 107, 157, 0.15), 0 0 0 1px rgba(255, 107, 157, 0.1);
}
.card-acro:hover { 
  border-color: rgba(255, 169, 77, 0.3);
  box-shadow: 0 20px 60px rgba(255, 169, 77, 0.15), 0 0 0 1px rgba(255, 169, 77, 0.1);
}
.card-aqua:hover { 
  border-color: rgba(77, 201, 246, 0.3);
  box-shadow: 0 20px 60px rgba(77, 201, 246, 0.15), 0 0 0 1px rgba(77, 201, 246, 0.1);
}
.card-nycto:hover { 
  border-color: rgba(167, 139, 250, 0.3);
  box-shadow: 0 20px 60px rgba(167, 139, 250, 0.15), 0 0 0 1px rgba(167, 139, 250, 0.1);
}

.card .card-shine {
  position: absolute;
  top: -150%;
  left: -150%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 40%,
    rgba(255, 255, 255, 0.03) 45%,
    rgba(255, 255, 255, 0.05) 50%,
    rgba(255, 255, 255, 0.03) 55%,
    transparent 60%
  );
  transition: transform 0.6s ease;
  pointer-events: none;
  z-index: 1;
}

.card:hover .card-shine { transform: translate(50%, 50%); }

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: inline-block;
  transition: transform 0.4s var(--transition-bounce);
}

.card:hover .card-icon { transform: scale(1.2) rotate(-5deg); }

.card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.3px;
  position: relative;
  z-index: 2;
}

.card > p {
  color: var(--text-dim);
  font-size: 0.92rem;
  margin-bottom: 1.2rem;
  line-height: 1.7;
  position: relative;
  z-index: 2;
}

.card-levels {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 2;
}

.level {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.3rem 0.7rem;
  border-radius: 8px;
  display: inline-block;
  width: fit-content;
  transition: transform 0.3s ease;
}

.card:hover .level { transform: translateX(4px); }

.level.easy { background: rgba(74,222,128,0.1); color: var(--easy); border: 1px solid rgba(74,222,128,0.15); }
.level.medium { background: rgba(251,191,36,0.1); color: var(--medium); border: 1px solid rgba(251,191,36,0.15); }
.level.hard { background: rgba(248,113,113,0.1); color: var(--hard); border: 1px solid rgba(248,113,113,0.15); }

.card-btn {
  position: relative;
  z-index: 2;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: #fff;
  border: none;
  padding: 0.75rem 1.6rem;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s var(--transition-smooth);
  letter-spacing: 0.3px;
  overflow: hidden;
}

.card-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.card-btn:active { transform: scale(0.98); }

/* ---- Info ---- */
.info {
  padding: 5rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.info h2 {
  font-size: clamp(1.8rem, 4vw, 2.2rem);
  margin-bottom: 3rem;
  font-weight: 800;
  letter-spacing: -1px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.info-item {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  transition: transform 0.4s var(--transition-smooth), box-shadow 0.4s var(--transition-smooth), border-color 0.3s ease;
}

.info-item:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.info-num {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 1.2rem;
  font-size: 1rem;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.info-item h4 {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.info-item p {
  color: var(--text-dim);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* ---- Quest Support Box ---- */
.quest-box {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(124, 106, 255, 0.15);
  border-radius: 16px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.quest-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, var(--accent-glow), transparent 70%);
  opacity: 0.1;
}

.quest-box h3 {
  margin-bottom: 0.7rem;
  font-size: 1.2rem;
  position: relative;
}

.quest-box p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.7;
  position: relative;
}

.quest-box .quest-subtitle {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  opacity: 0.7;
}

/* ---- Footer ---- */
footer {
  text-align: center;
  padding: 2.5rem;
  color: var(--text-dim);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  background: rgba(6, 6, 11, 0.8);
}

footer a {
  color: var(--accent-light);
  font-weight: 500;
}

/* ============================================
   VR Scene Page Styles — Glassmorphism UI
   ============================================ */

.scene-ui {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  pointer-events: none;
}

.scene-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.5rem;
  background: rgba(6, 6, 11, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  pointer-events: auto;
  animation: slideDown 0.6s var(--transition-smooth) forwards;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-100%); }
  to { opacity: 1; transform: translateY(0); }
}

.scene-header h1 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  background: linear-gradient(135deg, var(--text), var(--text-dim));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.scene-header .back-btn {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid var(--glass-border);
  padding: 0.5rem 1.1rem;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s var(--transition-smooth);
  backdrop-filter: blur(10px);
}

.scene-header .back-btn:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.15);
  transform: translateX(-2px);
}

.level-selector {
  display: flex;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  pointer-events: auto;
  justify-content: center;
  background: rgba(6, 6, 11, 0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  animation: slideDown 0.6s var(--transition-smooth) 0.1s forwards;
  opacity: 0;
}

.level-btn {
  padding: 0.5rem 1.3rem;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.level-btn:hover { 
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-1px);
}

.level-btn.active { 
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-color: var(--accent); 
  box-shadow: 0 4px 15px var(--accent-glow);
  color: #fff;
}

/* ---- Level transition flash ---- */
.level-transition {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 11, 0.9);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.level-transition.active { opacity: 1; }

/* ---- Breathing guide Enhanced ---- */
.breathing-guide {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  text-align: center;
  pointer-events: auto;
  animation: fadeInUp 0.8s var(--transition-smooth) 0.5s forwards;
  opacity: 0;
}

@keyframes fadeInUp {
  to { opacity: 1; }
}

.breath-circle {
  width: 85px;
  height: 85px;
  border-radius: 50%;
  background: rgba(124, 106, 255, 0.15);
  border: 2px solid rgba(124, 106, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  animation: breathe 8s ease-in-out infinite;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 0 30px rgba(124, 106, 255, 0.1), inset 0 0 20px rgba(124, 106, 255, 0.05);
  text-transform: uppercase;
  letter-spacing: 1px;
}

@keyframes breathe {
  0%, 100% { 
    transform: scale(0.8); 
    opacity: 0.5;
    box-shadow: 0 0 20px rgba(124, 106, 255, 0.1);
    border-color: rgba(124, 106, 255, 0.3);
  }
  25% { 
    transform: scale(1.2); 
    opacity: 1;
    box-shadow: 0 0 40px rgba(124, 106, 255, 0.25);
    border-color: rgba(124, 106, 255, 0.6);
  }
  50% { 
    transform: scale(1.2); 
    opacity: 1;
    box-shadow: 0 0 40px rgba(124, 106, 255, 0.25);
    border-color: rgba(124, 106, 255, 0.6);
  }
  75% { 
    transform: scale(0.8); 
    opacity: 0.5;
    box-shadow: 0 0 20px rgba(124, 106, 255, 0.1);
    border-color: rgba(124, 106, 255, 0.3);
  }
}

.breath-label {
  color: rgba(255,255,255,0.5);
  font-size: 0.7rem;
  letter-spacing: 0.5px;
}

/* ---- Anxiety meter Enhanced ---- */
.anxiety-meter {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: auto;
  animation: fadeInRight 0.8s var(--transition-smooth) 0.7s forwards;
  opacity: 0;
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateY(-50%) translateX(20px); }
  to { opacity: 1; transform: translateY(-50%) translateX(0); }
}

.meter-track {
  width: 10px;
  height: 200px;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.meter-fill {
  position: absolute;
  bottom: 0;
  width: 100%;
  background: linear-gradient(to top, var(--easy), var(--medium), var(--hard));
  border-radius: 8px;
  transition: height 0.8s var(--transition-smooth);
  height: 30%;
  box-shadow: 0 0 10px rgba(74, 222, 128, 0.2);
}

.meter-label {
  font-size: 0.6rem;
  color: var(--text-dim);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
}

/* ---- Comfort message Enhanced ---- */
.comfort-msg {
  position: fixed;
  bottom: 7rem;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  z-index: 999;
  background: rgba(6, 6, 11, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0.9rem 1.8rem;
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  font-size: 0.88rem;
  color: var(--text);
  text-align: center;
  max-width: 420px;
  transition: opacity 0.6s var(--transition-smooth), transform 0.6s var(--transition-smooth);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* ---- Session progress bar ---- */
.session-progress {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  pointer-events: none;
}

.progress-bar {
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transition: width 0.5s var(--transition-smooth);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero-title { letter-spacing: -1.5px; }
  .hero-subtitle { font-size: 1.1rem; }
  .card-grid { grid-template-columns: 1fr; gap: 1.2rem; }
  .info-grid { grid-template-columns: 1fr 1fr; }
  
  .level-selector {
    flex-wrap: wrap;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
  }
  
  .level-btn {
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
  }
  
  .anxiety-meter { right: 0.8rem; }
  .meter-track { height: 150px; }
}

@media (max-width: 480px) {
  .card-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .hero-content { padding: 1.5rem; }
  .sessions { padding: 3rem 1.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  body { -webkit-text-size-adjust: 100%; }
}

.level-btn, .card-btn, .back-btn {
  min-height: 44px;
  min-width: 44px;
  touch-action: manipulation;
}

a-scene {
  image-rendering: crisp-edges;
  image-rendering: pixelated;
}

a-cursor { opacity: 0.8; }

/* ---- Custom Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(124, 106, 255, 0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(124, 106, 255, 0.5); }

/* ---- Selection Color ---- */
::selection {
  background: rgba(124, 106, 255, 0.3);
  color: #fff;
}