/* Runic Theme Extension for Norse Rewards Dashboard */
/* Extends assets/brand.css with mystical Norse aesthetics */

:root {
  /* === Norse Color Palette === */
  /* Ice/Frost Spectrum */
  --ice-50: #f0fdff;
  --ice-100: #ccfbff;
  --ice-200: #99f6ff;
  --ice-300: #4dedff;
  --ice-400: #1ad6f0;
  --ice-500: #00bdd6;
  --ice-600: #0094b5;
  --ice-700: #067493;
  --ice-800: #0d5f78;
  --ice-900: #114e66;
  
  /* Midnight/Shadow Spectrum */
  --midnight-50: #f1f5f9;
  --midnight-100: #e2e8f0;
  --midnight-200: #cbd5e1;
  --midnight-300: #94a3b8;
  --midnight-400: #64748b;
  --midnight-500: #475569;
  --midnight-600: #334155;
  --midnight-700: #1e293b;
  --midnight-800: #0f172a;
  --midnight-900: #020617;
  
  /* Aurora Spectrum */
  --aurora-cyan: #00ffff;
  --aurora-blue: #0080ff;
  --aurora-purple: #8000ff;
  --aurora-pink: #ff00ff;
  --aurora-green: #00ff80;
  
  /* Frost/Glass Colors */
  --frost-white: rgba(255, 255, 255, 0.1);
  --frost-border: rgba(255, 255, 255, 0.2);
  --frost-backdrop: rgba(255, 255, 255, 0.05);
  --glass-bg: rgba(13, 15, 31, 0.8);
  --glass-border: rgba(0, 255, 255, 0.3);
  
  /* === Norse Gradients === */
  --aurora-gradient: linear-gradient(
    135deg,
    var(--aurora-cyan) 0%,
    var(--aurora-blue) 25%,
    var(--aurora-purple) 50%,
    var(--aurora-pink) 75%,
    var(--aurora-cyan) 100%
  );
  
  --aurora-bg-subtle: linear-gradient(
    180deg,
    rgba(0, 255, 255, 0.05) 0%,
    rgba(128, 0, 255, 0.05) 50%,
    rgba(255, 0, 255, 0.05) 100%
  );
  
  --frost-gradient: linear-gradient(
    135deg,
    var(--frost-white) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    var(--frost-white) 100%
  );
  
  --runestone-gradient: linear-gradient(
    145deg,
    var(--midnight-800) 0%,
    var(--midnight-700) 30%,
    var(--midnight-600) 70%,
    var(--midnight-500) 100%
  );
  
  --ice-crack-gradient: linear-gradient(
    45deg,
    transparent 30%,
    rgba(0, 255, 255, 0.1) 50%,
    transparent 70%
  );
  
  /* === Typography === */
  --runic-font-display: 'JetBrains Mono', 'Noto Sans Runic', monospace;
  --runic-font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* === Spacing & Sizing === */
  --rune-spacing-xs: 0.25rem;
  --rune-spacing-sm: 0.5rem;
  --rune-spacing-md: 1rem;
  --rune-spacing-lg: 1.5rem;
  --rune-spacing-xl: 2rem;
  --rune-spacing-2xl: 3rem;
  
  --rune-border-radius: 0.75rem;
  --rune-border-radius-lg: 1.25rem;
  
  /* === Shadows & Glows === */
  --neon-glow-sm: 0 0 10px var(--aurora-cyan), 0 0 20px rgba(0, 255, 255, 0.2);
  --neon-glow-md: 0 0 15px var(--aurora-cyan), 0 0 30px rgba(0, 255, 255, 0.3);
  --neon-glow-lg: 0 0 25px var(--aurora-cyan), 0 0 50px rgba(0, 255, 255, 0.4);
  
  --frost-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3), inset 0 1px 2px var(--frost-white);
  --frost-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4), inset 0 1px 4px var(--frost-white);
  --frost-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5), inset 0 2px 8px var(--frost-white);
  
  /* === Animation Durations === */
  --animation-fast: 0.15s;
  --animation-normal: 0.3s;
  --animation-slow: 0.6s;
  --aurora-cycle: 12s;
  --rune-pulse: 2s;
}

/* === Base Theme Overrides === */
body.runic-theme {
  background: var(--midnight-900);
  background-image: 
    var(--aurora-bg-subtle),
    radial-gradient(circle at 20% 80%, rgba(0, 255, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(128, 0, 255, 0.03) 0%, transparent 50%);
  color: var(--ice-100);
  font-family: var(--runic-font-body);
  overflow-x: hidden;
}

/* === Glass/Frost Card System === */
.frost-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--rune-border-radius);
  box-shadow: var(--frost-shadow-md);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.frost-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--frost-gradient);
  opacity: 0.6;
}

.frost-card:hover {
  border-color: var(--aurora-cyan);
  box-shadow: 
    var(--frost-shadow-lg),
    var(--neon-glow-sm);
  transform: translateY(-2px);
  transition: all var(--animation-normal) ease-out;
}

.frost-card-lg {
  border-radius: var(--rune-border-radius-lg);
  box-shadow: var(--frost-shadow-lg);
}

/* === Neon Effects === */
.neon-glow {
  text-shadow: var(--neon-glow-md);
  color: var(--aurora-cyan);
}

.neon-glow:hover {
  text-shadow: var(--neon-glow-lg);
  animation: runic-pulse var(--rune-pulse) ease-in-out infinite;
}

.neon-border {
  border: 1px solid var(--aurora-cyan);
  box-shadow: var(--neon-glow-sm);
}

.neon-border:hover,
.neon-border:focus {
  box-shadow: var(--neon-glow-md);
}

/* === Runic Border Patterns === */
.rune-border {
  position: relative;
  border: 2px solid transparent;
  background: linear-gradient(var(--midnight-800), var(--midnight-800)) padding-box,
              var(--aurora-gradient) border-box;
  border-radius: var(--rune-border-radius);
}

.rune-border::after {
  content: '᚛ ᚏᚓᚅᚦ ᚏᚓᚋᚐᚔᚇ ᚜';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--midnight-800);
  color: var(--aurora-cyan);
  font-size: 0.75rem;
  padding: 0 var(--rune-spacing-sm);
  letter-spacing: 1px;
  opacity: 0.7;
}

/* Animated rune border */
.rune-border-animated {
  background-size: 400% 400%;
  animation: rune-border-flow var(--aurora-cycle) ease-in-out infinite;
}

@keyframes rune-border-flow {
  0%, 100% { background-position: 0% 50%; }
  25% { background-position: 100% 50%; }
  50% { background-position: 100% 100%; }
  75% { background-position: 0% 100%; }
}

/* === Aurora Background Effect === */
.aurora-bg {
  background: var(--aurora-gradient);
  background-size: 400% 400%;
  animation: aurora-dance var(--aurora-cycle) ease-in-out infinite;
  position: relative;
}

.aurora-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at center,
    transparent 30%,
    rgba(13, 15, 31, 0.8) 70%
  );
}

@keyframes aurora-dance {
  0%, 100% {
    background-position: 0% 50%;
    opacity: 0.8;
  }
  25% {
    background-position: 100% 25%;
    opacity: 1;
  }
  50% {
    background-position: 100% 75%;
    opacity: 0.9;
  }
  75% {
    background-position: 0% 75%;
    opacity: 0.7;
  }
}

/* === Snow Layer Effect === */
.snow-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.6;
}

.snowflake {
  position: absolute;
  color: var(--ice-200);
  user-select: none;
  pointer-events: none;
  animation: snowfall linear infinite;
  font-family: var(--runic-font-display);
}

@keyframes snowfall {
  0% {
    transform: translateY(-100vh) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(360deg);
    opacity: 0;
  }
}

/* === Runic Loading Spinner === */
.runic-loader {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  position: relative;
}

.runic-loader::before {
  content: '᚛';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.5rem;
  color: var(--aurora-cyan);
  animation: rune-spin 1s linear infinite;
}

@keyframes rune-spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
    text-shadow: var(--neon-glow-sm);
  }
  50% {
    transform: translate(-50%, -50%) rotate(180deg);
    text-shadow: var(--neon-glow-lg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
    text-shadow: var(--neon-glow-sm);
  }
}

/* === Focus Outline System === */
.focus-outline:focus {
  outline: 2px solid var(--aurora-cyan);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(0, 255, 255, 0.2);
}

.focus-outline:focus:not(:focus-visible) {
  outline: none;
  box-shadow: none;
}

/* === Button Variants === */
.btn-runic {
  background: var(--runestone-gradient);
  border: 1px solid var(--glass-border);
  color: var(--ice-100);
  padding: var(--rune-spacing-sm) var(--rune-spacing-lg);
  border-radius: var(--rune-border-radius);
  font-family: var(--runic-font-display);
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all var(--animation-normal) ease-out;
  position: relative;
  overflow: hidden;
}

.btn-runic:hover {
  border-color: var(--aurora-cyan);
  box-shadow: var(--neon-glow-sm);
  transform: translateY(-1px);
}

.btn-runic:active {
  transform: translateY(0);
}

.btn-runic-primary {
  background: var(--aurora-gradient);
  background-size: 200% 200%;
  animation: gentle-aurora 4s ease-in-out infinite;
  color: var(--midnight-900);
  font-weight: 700;
}

@keyframes gentle-aurora {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.btn-runic-ghost {
  background: transparent;
  border: 2px solid var(--aurora-cyan);
  color: var(--aurora-cyan);
}

.btn-runic-ghost:hover {
  background: rgba(0, 255, 255, 0.1);
  box-shadow: var(--neon-glow-md);
}

/* === Card Statistics Display === */
.stat-card {
  @extend .frost-card;
  padding: var(--rune-spacing-lg);
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  font-family: var(--runic-font-display);
  background: var(--aurora-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--rune-spacing-sm);
}

.stat-label {
  color: var(--ice-300);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--rune-spacing-xs);
}

.stat-trend {
  font-size: 0.75rem;
  font-weight: 600;
}

.stat-trend.positive {
  color: var(--aurora-green);
}

.stat-trend.negative {
  color: #ff4444;
}

/* === Ice Crack Transitions === */
.ice-crack-enter {
  opacity: 0;
  transform: scale(0.9);
  animation: ice-crack-in var(--animation-normal) ease-out forwards;
}

@keyframes ice-crack-in {
  0% {
    opacity: 0;
    transform: scale(0.9);
    filter: blur(4px);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.02);
    filter: blur(2px);
  }
  100% {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
}

.ice-crack-leave {
  animation: ice-crack-out var(--animation-fast) ease-in forwards;
}

@keyframes ice-crack-out {
  0% {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
  100% {
    opacity: 0;
    transform: scale(0.95);
    filter: blur(2px);
  }
}

/* === Responsive Breakpoints === */
@media (max-width: 480px) {
  .frost-card {
    margin: var(--rune-spacing-sm);
    padding: var(--rune-spacing-md);
  }
  
  .stat-value {
    font-size: 2rem;
  }
  
  .rune-border::after {
    font-size: 0.625rem;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .frost-card {
    padding: var(--rune-spacing-lg);
  }
}

@media (min-width: 1280px) {
  .frost-card-lg {
    padding: var(--rune-spacing-xl);
  }
  
  .stat-value {
    font-size: 3rem;
  }
}

/* === Reduced Motion Support === */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .aurora-bg {
    background: var(--midnight-800);
  }
  
  .snow-layer {
    display: none;
  }
  
  .runic-loader::before {
    animation: none;
  }
}

/* === High Contrast Mode Support === */
@media (prefers-contrast: high) {
  :root {
    --glass-bg: rgba(0, 0, 0, 0.9);
    --glass-border: rgba(255, 255, 255, 0.8);
    --frost-white: rgba(255, 255, 255, 0.3);
  }
  
  .neon-glow {
    text-shadow: none;
    color: #ffffff;
  }
  
  .frost-card {
    border-width: 2px;
  }
}

/* === Dark Mode Enhancements === */
@media (prefers-color-scheme: dark) {
  body.runic-theme {
    background: var(--midnight-900);
  }
  
  .frost-card {
    background: rgba(13, 15, 31, 0.95);
  }
}

/* === Print Styles === */
@media print {
  .snow-layer,
  .aurora-bg::before,
  .runic-loader {
    display: none !important;
  }
  
  .frost-card {
    background: white;
    color: black;
    border: 1px solid #ccc;
    box-shadow: none;
  }
  
  .neon-glow {
    color: black;
    text-shadow: none;
  }
}