/* ===================================
   NEXUS Base Styles
   "Understand Yourself. Understand Connection."

   Design: Star Trek TNG-inspired UI
   Colors: Gunmetal + Electric Aqua
   =================================== */

/* === CSS VARIABLES === */
:root {
  /* Color Palette */
  --gunmetal: #2a2d34;
  --electric-aqua: #00d4ff;
  --deep-purple: #6b4c9a;
  --soft-gold: #d4af37;
  --near-black: #0a0a0f;
  --off-white: #e8e8f0;

  /* Semantic Colors */
  --primary-bg: var(--gunmetal);
  --accent-color: var(--electric-aqua);
  --secondary-color: var(--deep-purple);
  --highlight-color: var(--soft-gold);
  --bg-dark: var(--near-black);
  --text-light: var(--off-white);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Shadows & Glows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --glow-aqua: 0 0 20px rgba(0, 212, 255, 0.3);
  --glow-aqua-strong: 0 0 30px rgba(0, 212, 255, 0.5);
  --glow-gold: 0 0 20px rgba(212, 175, 55, 0.3);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Typography */
  --font-heading: 'Orbitron', 'Exo', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* === FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Inter:wght@300;400;500;600;700&display=swap');

/* === RESET & BASE === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  letter-spacing: 0.03em;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  letter-spacing: 0.02em;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-sm);
  font-weight: 400;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--highlight-color);
  text-shadow: var(--glow-aqua);
}

/* === CONTAINERS === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* === STAR TREK TNG PANELS === */
.panel {
  background: linear-gradient(135deg, var(--gunmetal) 0%, rgba(42, 45, 52, 0.8) 100%);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(0, 212, 255, 0.2);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
  opacity: 0.5;
}

.panel:hover {
  box-shadow: var(--shadow-lg), var(--glow-aqua);
  border-color: rgba(0, 212, 255, 0.4);
  transform: translateY(-2px);
}

.panel-interactive {
  cursor: pointer;
}

/* Frosted glass effect for modals */
.frosted-glass {
  background: rgba(42, 45, 52, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-color), var(--deep-purple));
  color: white;
  box-shadow: var(--glow-aqua);
}

.btn-primary:hover {
  box-shadow: var(--glow-aqua-strong);
  transform: translateY(-2px) scale(1.02);
  color: white;
}

.btn-secondary {
  background: transparent;
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.btn-secondary:hover {
  background: var(--accent-color);
  color: var(--gunmetal);
  box-shadow: var(--glow-aqua);
}

.btn-outline {
  background: transparent;
  border-color: var(--text-light);
  color: var(--text-light);
}

.btn-outline:hover {
  background: var(--text-light);
  color: var(--gunmetal);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1.125rem;
}

.btn-small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.875rem;
}

/* === TAG PILLS === */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid var(--accent-color);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent-color);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tag:hover {
  background: rgba(0, 212, 255, 0.2);
  box-shadow: var(--glow-aqua);
  transform: translateY(-1px);
}

.tag-version {
  background: rgba(212, 175, 55, 0.2);
  border-color: var(--highlight-color);
  color: var(--highlight-color);
  font-size: 0.75rem;
  padding: 2px 8px;
  margin-left: var(--spacing-xs);
  border-radius: var(--radius-sm);
}

.tag-category {
  font-size: 0.75rem;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* === FORMS === */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--accent-color);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-sm);
  background: rgba(42, 45, 52, 0.5);
  border: 2px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--radius-sm);
  color: var(--text-light);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: var(--glow-aqua);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(232, 232, 240, 0.5);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* === CARDS === */
.card {
  background: var(--primary-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(0, 212, 255, 0.2);
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg), var(--glow-aqua);
  transform: translateY(-4px);
}

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid rgba(0, 212, 255, 0.3);
}

.card-title {
  margin-bottom: var(--spacing-xs);
  color: var(--accent-color);
}

.card-body {
  margin-bottom: var(--spacing-md);
}

.card-footer {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(0, 212, 255, 0.3);
}

/* === GRID LAYOUTS === */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* === UTILITIES === */
.text-center {
  text-align: center;
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent-color), var(--deep-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glow-text {
  text-shadow: var(--glow-aqua);
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

/* === ANIMATIONS === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes glow-pulse {
  0%, 100% {
    box-shadow: var(--glow-aqua);
  }
  50% {
    box-shadow: var(--glow-aqua-strong);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root {
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
  }

  .panel {
    padding: var(--spacing-md);
  }

  .card {
    padding: var(--spacing-md);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-bg);
  border-radius: var(--radius-sm);
  border: 2px solid var(--bg-dark);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}

/* === LOADING STATES === */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0, 212, 255, 0.3);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.skeleton {
  background: linear-gradient(
    90deg,
    rgba(42, 45, 52, 0.5) 25%,
    rgba(0, 212, 255, 0.1) 50%,
    rgba(42, 45, 52, 0.5) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* === HOST INDICATOR BADGE (7 o'clock position) === */
/* Shows when a HOST model is active on an avatar */
.avatar-container {
  position: relative;
  display: inline-block;
}

.host-indicator {
  position: absolute;
  bottom: 5%;
  left: 5%;
  background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
  color: var(--bg-dark);
  font-size: 0.6rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 8px;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  z-index: 10;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.host-indicator::before {
  content: '⚡';
  margin-right: 2px;
}

/* Larger variant for profile pages */
.host-indicator.large {
  font-size: 0.75rem;
  padding: 3px 8px;
  bottom: 8%;
  left: 8%;
}

/* Minimal variant - just icon */
.host-indicator.minimal {
  padding: 3px 5px;
  font-size: 0.7rem;
}

.host-indicator.minimal::before {
  margin-right: 0;
}

.host-indicator.minimal span {
  display: none;
}

/* Frame emoji position (2 o'clock - for persona frames) */
.frame-emoji {
  position: absolute;
  top: 5%;
  right: 5%;
  font-size: 1.2rem;
  z-index: 10;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Combined: Frame at 2 o'clock, HOST at 7 o'clock */
.avatar-container .frame-emoji {
  top: 0;
  right: 0;
  transform: translate(25%, -25%);
}

.avatar-container .host-indicator {
  bottom: 0;
  left: 0;
  transform: translate(-15%, 15%);
}

/* === AVATAR FRAME EFFECTS === */
/* Frame icon - 2 o'clock position, half on/half off border */
.avatar-frame-icon {
  position: absolute;
  top: -6px;
  right: -6px;
  font-size: 1.2rem;
  z-index: 10;
  background: none;
  border: none;
  /* text-shadow set via JS to match frame color */
}

/* Small avatar frame icon */
.avatar-small .avatar-frame-icon {
  top: -2px;
  right: -2px;
  font-size: 0.5rem;
}

/* Avatar with frame applied */
.avatar-framed {
  border-radius: 50%;
  overflow: hidden;
}

/* Frame gem effects - borders only, no backgrounds */
.frame-ruby {
  border: 3px solid #e74c3c;
  box-shadow: 0 0 15px #e74c3c, inset 0 0 5px rgba(231, 76, 60, 0.2);
}

.frame-diamond {
  border: 3px solid #ecf0f1;
  box-shadow: 0 0 20px #ecf0f1, inset 0 0 5px rgba(236, 240, 241, 0.2);
}

.frame-emerald {
  border: 3px solid #2ecc71;
  box-shadow: 0 0 15px #2ecc71, inset 0 0 5px rgba(46, 204, 113, 0.2);
}

.frame-sapphire {
  border: 3px solid #3498db;
  box-shadow: 0 0 18px #3498db, inset 0 0 5px rgba(52, 152, 219, 0.2);
}

.frame-amethyst {
  border: 3px solid #9b59b6;
  box-shadow: 0 0 18px #9b59b6, inset 0 0 5px rgba(155, 89, 182, 0.2);
}

.frame-citrine {
  border: 3px solid #f39c12;
  box-shadow: 0 0 16px #f39c12, inset 0 0 5px rgba(243, 156, 18, 0.2);
}

.frame-neon {
  border: 3px solid #00ff41;
  box-shadow: 0 0 20px #00ff41, 0 0 35px rgba(0, 255, 65, 0.5);
}

.frame-plasma {
  border: 3px solid #ff3300;
  box-shadow: 0 0 25px #ff3300, 0 0 40px #ff6600, 0 0 60px rgba(255, 51, 0, 0.3);
}

.frame-hologram {
  border: 3px solid #00ffff;
  box-shadow: 0 0 20px #00ffff, 0 0 30px #ff00ff, 0 0 40px #00ff00;
  animation: hologram-shift 3s ease-in-out infinite;
}

@keyframes hologram-shift {
  0%, 100% { border-color: #00ffff; box-shadow: 0 0 20px #00ffff, 0 0 30px #ff00ff; }
  33% { border-color: #ff00ff; box-shadow: 0 0 20px #ff00ff, 0 0 30px #00ff00; }
  66% { border-color: #00ff00; box-shadow: 0 0 20px #00ff00, 0 0 30px #00ffff; }
}

.frame-quantum {
  border: 3px solid #ffffff;
  box-shadow: 0 0 25px #ffffff, 0 0 40px rgba(0, 212, 255, 0.5), 0 0 60px rgba(155, 89, 182, 0.3);
  animation: quantum-pulse 2s ease-in-out infinite;
}

@keyframes quantum-pulse {
  0%, 100% { box-shadow: 0 0 25px #ffffff, 0 0 40px rgba(0, 212, 255, 0.5); }
  50% { box-shadow: 0 0 35px #ffffff, 0 0 50px rgba(155, 89, 182, 0.6); }
}

.frame-cosmic {
  border: 3px solid #ff006e;
  box-shadow: 0 0 25px #ff006e, 0 0 40px #8338ec, 0 0 60px rgba(255, 0, 110, 0.3);
}

.frame-legendary {
  border: 3px solid #ffd700;
  box-shadow: 0 0 30px #ffd700, 0 0 45px rgba(255, 215, 0, 0.4), 0 0 60px rgba(255, 165, 0, 0.2);
}

.frame-mythic {
  border: 4px solid transparent;
  background: linear-gradient(var(--bg-dark), var(--bg-dark)) padding-box,
              linear-gradient(45deg, #ff00ff, #00ffff, #ff00ff, #ffff00) border-box;
  box-shadow: 0 0 30px rgba(255, 0, 255, 0.5), 0 0 50px rgba(0, 255, 255, 0.3);
  animation: mythic-border 4s linear infinite;
}

@keyframes mythic-border {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

.frame-mythic-inferno {
  border: 4px solid transparent;
  background: linear-gradient(var(--bg-dark), var(--bg-dark)) padding-box,
              linear-gradient(45deg, #ff4500, #ff6600, #ff0000, #ff4500) border-box;
  box-shadow: 0 0 35px rgba(255, 69, 0, 0.6), 0 0 55px rgba(255, 0, 0, 0.3);
  animation: inferno-flicker 0.15s ease-in-out infinite;
}

@keyframes inferno-flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.9; }
}

.frame-mythic-frost {
  border: 4px solid transparent;
  background: linear-gradient(var(--bg-dark), var(--bg-dark)) padding-box,
              linear-gradient(45deg, #00bfff, #87ceeb, #e0ffff, #00bfff) border-box;
  box-shadow: 0 0 35px rgba(0, 191, 255, 0.6), 0 0 55px rgba(135, 206, 235, 0.3);
}

.frame-mythic-shadow {
  border: 4px solid transparent;
  background: linear-gradient(var(--bg-dark), var(--bg-dark)) padding-box,
              linear-gradient(45deg, #4a0080, #000000, #1a0033, #4a0080) border-box;
  box-shadow: 0 0 35px rgba(74, 0, 128, 0.7), 0 0 55px rgba(0, 0, 0, 0.5);
}

.frame-mythic-blood {
  border: 4px solid transparent;
  background: linear-gradient(var(--bg-dark), var(--bg-dark)) padding-box,
              linear-gradient(45deg, #8b0000, #ff0000, #660000, #8b0000) border-box;
  box-shadow: 0 0 35px rgba(139, 0, 0, 0.7), 0 0 55px rgba(255, 0, 0, 0.3);
  animation: blood-pulse 2s ease-in-out infinite;
}

@keyframes blood-pulse {
  0%, 100% { box-shadow: 0 0 35px rgba(139, 0, 0, 0.7); }
  50% { box-shadow: 0 0 45px rgba(255, 0, 0, 0.5); }
}