/* =============================================
   KSTREET CHALLENGE - Colorful Retro Arcade
   Bright & fun like Mario, sparkly like K-pop
   ============================================= */

/* --- CSS Variables --- */
:root {
  --bg-main:     #1e0a3c;   /* deep purple base */
  --bg-card:     #2a1350;   /* card purple */
  --bg-card-alt: #321860;
  --primary:     #ff2d78;   /* hot pink */
  --secondary:   #ffb800;   /* golden yellow */
  --accent:      #00d4ff;   /* electric blue */
  --mint:        #00e89d;   /* mint green */
  --coral:       #ff6b4a;   /* warm coral */
  --lilac:       #c77dff;   /* soft lilac */
  --gold:        #ffd700;
  --silver:      #d4d4f0;
  --bronze:      #f0a050;
  --text:        #ffffff;
  --text-dim:    #a090cc;
  --danger:      #ff2d55;
  --success:     #00e89d;
  --cat-hero:    #00e89d;   /* House Heros - mint */
  --cat-chem:    #ff2d78;   /* Chemistry - hot pink */
  --cat-chaos:   #ffb800;   /* Chaos - golden */
  --cat-legend:  #c77dff;   /* Unhinged - lilac */
  --cat-party:   #ff6b4a;   /* Opening Night - coral */
  --pixel:       2px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-main);
  background-image:
    radial-gradient(ellipse at 15% 30%, rgba(255, 45, 120, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 60%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 90%, rgba(199, 125, 255, 0.06) 0%, transparent 40%);
  color: var(--text);
  font-family: 'Courier New', Courier, monospace;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* --- Pixel Font --- */
.hero-title,
.section-title,
.countdown-text,
.nav-link,
.filter-tab,
.stat-value,
.loading-text,
.podium-name,
.podium-score,
.rank-number,
.footer,
.rules-summary {
  font-family: 'Press Start 2P', monospace;
}

/* --- Utility --- */
.hidden {
  display: none !important;
}

/* =============================================
   Loading Screen
   ============================================= */
.loading-screen {
  position: fixed;
  inset: 0;
  background: var(--bg-main);
  background-image: radial-gradient(ellipse at center, rgba(199, 125, 255, 0.15) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  gap: 24px;
  transition: opacity 0.4s;
}

.loading-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loading-text {
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 2px;
  text-shadow: 0 0 20px rgba(255, 45, 120, 0.5);
}

.loading-bar-track {
  width: 240px;
  height: 16px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow:
    var(--pixel) 0 0 0 rgba(255,255,255,0.15),
    calc(-1 * var(--pixel)) 0 0 0 rgba(255,255,255,0.15),
    0 var(--pixel) 0 0 rgba(255,255,255,0.15),
    0 calc(-1 * var(--pixel)) 0 0 rgba(255,255,255,0.15);
}

.loading-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
  animation: loading-progress 2s ease-in-out forwards;
}

@keyframes loading-progress {
  0%   { width: 0%; }
  50%  { width: 60%; }
  90%  { width: 85%; }
  100% { width: 100%; }
}

/* --- Blink Animation --- */
.blink {
  animation: blink-anim 1s step-end infinite;
}

@keyframes blink-anim {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}

/* --- Bounce --- */
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}

/* --- Rainbow shift --- */
@keyframes rainbow-glow {
  0%   { text-shadow: 0 0 20px rgba(255, 45, 120, 0.6), 3px 3px 0 rgba(255, 45, 120, 0.4); }
  33%  { text-shadow: 0 0 20px rgba(0, 212, 255, 0.6), 3px 3px 0 rgba(0, 212, 255, 0.4); }
  66%  { text-shadow: 0 0 20px rgba(255, 184, 0, 0.6), 3px 3px 0 rgba(255, 184, 0, 0.4); }
  100% { text-shadow: 0 0 20px rgba(255, 45, 120, 0.6), 3px 3px 0 rgba(255, 45, 120, 0.4); }
}

/* =============================================
   Hero Section
   ============================================= */
.hero {
  position: relative;
  background: linear-gradient(135deg, #1a0835 0%, #2d1060 40%, #1a0835 100%);
  padding: 48px 16px 36px;
  text-align: center;
  overflow: hidden;
  border-bottom: 3px solid;
  border-image: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--mint)) 1;
}

/* Sparkle overlay instead of scanlines */
.scanline-overlay {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 60% 70%, rgba(255,255,255,0.2), transparent),
    radial-gradient(1px 1px at 80% 20%, rgba(255,255,255,0.25), transparent),
    radial-gradient(1px 1px at 40% 80%, rgba(255,255,255,0.2), transparent),
    radial-gradient(1px 1px at 10% 60%, rgba(255,255,255,0.15), transparent),
    radial-gradient(1px 1px at 90% 50%, rgba(255,255,255,0.2), transparent);
  pointer-events: none;
  z-index: 1;
  animation: sparkle-float 4s ease-in-out infinite alternate;
}

@keyframes sparkle-float {
  0%   { opacity: 0.5; }
  100% { opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 22px;
  color: var(--text);
  text-shadow:
    3px 3px 0 var(--primary),
    0 0 30px rgba(255, 45, 120, 0.4);
  line-height: 1.8;
  letter-spacing: 3px;
  margin-bottom: 10px;
  animation: rainbow-glow 6s ease-in-out infinite;
}

.hero-subtitle {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 20px;
  letter-spacing: 3px;
}

.countdown {
  margin-bottom: 24px;
}

.countdown-text {
  font-size: 12px;
  color: var(--secondary);
  letter-spacing: 1px;
  text-shadow: 0 0 12px rgba(255, 184, 0, 0.5);
  animation: bounce 2s ease-in-out infinite;
  display: inline-block;
}

/* --- XP Bar --- */
.xp-bar-container {
  max-width: 400px;
  margin: 0 auto;
}

.xp-bar-label {
  font-size: 8px;
  color: var(--text-dim);
  margin-bottom: 6px;
  letter-spacing: 1px;
  font-family: 'Press Start 2P', monospace;
}

.xp-bar-track {
  height: 18px;
  background: rgba(255, 255, 255, 0.06);
  box-shadow:
    var(--pixel) 0 0 0 rgba(255,255,255,0.12),
    calc(-1 * var(--pixel)) 0 0 0 rgba(255,255,255,0.12),
    0 var(--pixel) 0 0 rgba(255,255,255,0.12),
    0 calc(-1 * var(--pixel)) 0 0 rgba(255,255,255,0.12);
  position: relative;
  overflow: hidden;
}

.xp-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--coral), var(--secondary), var(--mint), var(--accent));
  background-size: 200% 100%;
  animation: xp-gradient 3s linear infinite;
  transition: width 1s ease-out;
  position: relative;
}

@keyframes xp-gradient {
  0%   { background-position: 0% 0%; }
  100% { background-position: 200% 0%; }
}

.xp-bar-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  width: 6px;
  height: 100%;
  background: rgba(255, 255, 255, 0.6);
  animation: xp-shine 1.5s ease-in-out infinite;
}

@keyframes xp-shine {
  0%, 100% { opacity: 0.2; }
  50%      { opacity: 1; }
}

.xp-bar-dates {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-size: 8px;
  color: var(--text-dim);
  font-family: 'Press Start 2P', monospace;
}

/* =============================================
   Navigation
   ============================================= */
.pixel-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
  padding: 12px 8px;
  background: rgba(30, 10, 60, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid rgba(255, 45, 120, 0.3);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-link {
  font-size: 8px;
  color: var(--text-dim);
  text-decoration: none;
  padding: 8px 12px;
  transition: all 0.2s;
  letter-spacing: 1px;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(255, 45, 120, 0.1);
  text-shadow: 0 0 10px rgba(255, 45, 120, 0.4);
}

/* =============================================
   Stats Bar
   ============================================= */
.stats-bar {
  padding: 20px 16px;
  background: rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid rgba(199, 125, 255, 0.15);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  max-width: 650px;
  margin: 0 auto;
}

.stat-box {
  background: var(--bg-card);
  padding: 14px 10px;
  text-align: center;
  border: 2px solid rgba(199, 125, 255, 0.25);
  transition: border-color 0.3s;
}

.stat-box:hover {
  border-color: rgba(199, 125, 255, 0.5);
}

.stat-box:nth-child(1) .stat-value { color: var(--accent); }
.stat-box:nth-child(2) .stat-value { color: var(--mint); }
.stat-box:nth-child(3) .stat-value { color: var(--primary); }
.stat-box:nth-child(4) .stat-value { color: var(--secondary); }

.stat-value {
  font-size: 14px;
  margin-bottom: 6px;
  word-break: break-word;
}

.stat-label {
  font-size: 7px;
  color: var(--text-dim);
  letter-spacing: 1px;
  font-family: 'Press Start 2P', monospace;
}

/* =============================================
   Sections (shared)
   ============================================= */
.section {
  padding: 36px 16px;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.section-title {
  font-size: 15px;
  color: var(--text);
  text-align: center;
  margin-bottom: 28px;
  letter-spacing: 3px;
  text-shadow: 2px 2px 0 var(--primary);
}

.section-title::before,
.section-title::after {
  content: ' \2b50 ';
}

/* =============================================
   Leaderboard - Podium (Top 3)
   ============================================= */
.podium {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 14px;
  margin-bottom: 28px;
  min-height: 220px;
}

.podium-place {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.podium-crown {
  font-size: 28px;
  margin-bottom: 4px;
  animation: bounce 2s ease-in-out infinite;
}

.podium-place.silver .podium-crown { animation-delay: 0.3s; }
.podium-place.bronze .podium-crown { animation-delay: 0.6s; }

.podium-name {
  font-size: 8px;
  margin-bottom: 6px;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: 1px;
}

.podium-score {
  font-size: 12px;
  margin-bottom: 8px;
}

.podium-bar {
  width: 90px;
  border: 2px solid rgba(255, 255, 255, 0.15);
}

/* 1st place */
.podium-place.gold .podium-name  { color: var(--secondary); text-shadow: 0 0 10px rgba(255, 184, 0, 0.4); }
.podium-place.gold .podium-score { color: var(--secondary); }
.podium-place.gold .podium-bar   {
  height: 115px;
  background: linear-gradient(180deg, rgba(255, 215, 0, 0.3) 0%, rgba(255, 215, 0, 0.08) 100%);
  border-color: var(--gold);
}

/* 2nd place */
.podium-place.silver .podium-name  { color: var(--silver); }
.podium-place.silver .podium-score { color: var(--silver); }
.podium-place.silver .podium-bar   {
  height: 85px;
  background: linear-gradient(180deg, rgba(212, 212, 240, 0.25) 0%, rgba(212, 212, 240, 0.05) 100%);
  border-color: var(--silver);
}

/* 3rd place */
.podium-place.bronze .podium-name  { color: var(--bronze); }
.podium-place.bronze .podium-score { color: var(--bronze); }
.podium-place.bronze .podium-bar   {
  height: 65px;
  background: linear-gradient(180deg, rgba(240, 160, 80, 0.25) 0%, rgba(240, 160, 80, 0.05) 100%);
  border-color: var(--bronze);
}

/* =============================================
   Leaderboard - Rankings Table
   ============================================= */
.rankings-table {
  max-width: 500px;
  margin: 0 auto;
  background: rgba(0, 0, 0, 0.15);
  border: 2px solid rgba(199, 125, 255, 0.15);
}

.rank-row {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.15s;
}

.rank-row:hover {
  background: rgba(255, 45, 120, 0.06);
}

.rank-row:nth-child(even) {
  background: rgba(255, 255, 255, 0.03);
}

.rank-row:nth-child(even):hover {
  background: rgba(255, 45, 120, 0.08);
}

.rank-number {
  font-size: 10px;
  color: var(--text-dim);
  min-width: 32px;
  text-align: right;
}

.rank-name {
  flex: 1;
  font-size: 13px;
  color: var(--text);
}

.rank-score {
  font-weight: bold;
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  color: var(--secondary);
  text-shadow: 0 0 6px rgba(255, 184, 0, 0.3);
}

.rank-row.zero-points .rank-name {
  color: rgba(255, 255, 255, 0.3);
}

.rank-row.zero-points .rank-score {
  color: rgba(255, 255, 255, 0.2);
  text-shadow: none;
}

/* =============================================
   Challenge Browser
   ============================================= */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-bottom: 24px;
}

.filter-tab {
  font-size: 7px;
  padding: 8px 12px;
  background: var(--bg-card);
  color: var(--text-dim);
  border: 2px solid rgba(199, 125, 255, 0.2);
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.2s;
}

.filter-tab:hover {
  color: var(--text);
  border-color: var(--primary);
  background: rgba(255, 45, 120, 0.1);
}

.filter-tab.active {
  background: var(--primary);
  color: var(--text);
  border-color: var(--primary);
  box-shadow: 0 0 12px rgba(255, 45, 120, 0.4);
}

/* --- Challenge Cards --- */
.challenge-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.challenge-card {
  background: var(--bg-card);
  padding: 16px;
  position: relative;
  border: 2px solid rgba(199, 125, 255, 0.15);
  transition: transform 0.15s, border-color 0.2s, box-shadow 0.2s;
}

.challenge-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.challenge-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 6px;
  gap: 8px;
}

.challenge-name {
  font-size: 12px;
  font-weight: bold;
  flex: 1;
  color: var(--text);
}

.challenge-points {
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  color: var(--secondary);
  white-space: nowrap;
  text-shadow: 0 0 6px rgba(255, 184, 0, 0.3);
}

.challenge-points.negative {
  color: var(--danger);
  text-shadow: 0 0 6px rgba(255, 45, 85, 0.3);
}

.challenge-category-tag {
  display: inline-block;
  padding: 3px 8px;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
  font-family: 'Press Start 2P', monospace;
  font-size: 6px;
  border: 1px solid currentColor;
}

.challenge-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 10px;
}

.challenge-completions {
  font-size: 10px;
  color: var(--text-dim);
}

.challenge-completions strong {
  color: var(--mint);
}

/* Category colors */
.cat-house-heros       { border-left: 4px solid var(--cat-hero) !important; }
.cat-kstreet-chemistry { border-left: 4px solid var(--cat-chem) !important; }
.cat-chaos-entertainment { border-left: 4px solid var(--cat-chaos) !important; }
.cat-unhinged-legends  { border-left: 4px solid var(--cat-legend) !important; }
.cat-opening-night     { border-left: 4px solid var(--cat-party) !important; }

.cat-house-heros .challenge-name       { color: var(--cat-hero); }
.cat-kstreet-chemistry .challenge-name { color: var(--cat-chem); }
.cat-chaos-entertainment .challenge-name { color: var(--cat-chaos); }
.cat-unhinged-legends .challenge-name  { color: var(--cat-legend); }
.cat-opening-night .challenge-name     { color: var(--cat-party); }

.cat-tag-house-heros       { background: rgba(0, 232, 157, 0.12); color: var(--cat-hero); }
.cat-tag-kstreet-chemistry { background: rgba(255, 45, 120, 0.12); color: var(--cat-chem); }
.cat-tag-chaos-entertainment { background: rgba(255, 184, 0, 0.12); color: var(--cat-chaos); }
.cat-tag-unhinged-legends  { background: rgba(199, 125, 255, 0.12); color: var(--cat-legend); }
.cat-tag-opening-night     { background: rgba(255, 107, 74, 0.12); color: var(--cat-party); }

/* =============================================
   Recent Completions Feed
   ============================================= */
.feed-list {
  max-width: 500px;
  margin: 0 auto;
}

.feed-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  margin-bottom: 8px;
  background: var(--bg-card);
  position: relative;
  border: 2px solid rgba(199, 125, 255, 0.12);
  transition: transform 0.15s, border-color 0.2s;
}

.feed-item:hover {
  transform: translateX(3px);
  border-color: rgba(199, 125, 255, 0.3);
}

.feed-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.feed-content {
  flex: 1;
}

.feed-text {
  font-size: 12px;
  line-height: 1.5;
}

.feed-name {
  color: var(--accent);
  font-weight: bold;
}

.feed-challenge {
  color: var(--text);
}

.feed-points {
  color: var(--secondary);
  font-weight: bold;
}

.feed-date {
  font-size: 10px;
  color: var(--text-dim);
  margin-top: 3px;
}

.feed-new-badge {
  position: absolute;
  top: 6px;
  right: 8px;
  font-family: 'Press Start 2P', monospace;
  font-size: 6px;
  color: var(--mint);
  text-shadow: 0 0 6px rgba(0, 232, 157, 0.5);
  animation: blink-anim 1s step-end infinite;
}

.feed-empty {
  text-align: center;
  color: var(--text-dim);
  padding: 40px 0;
  font-size: 12px;
}

/* =============================================
   Rules
   ============================================= */
.rules-container {
  max-width: 500px;
  margin: 0 auto;
}

.rules-block {
  margin-bottom: 8px;
  background: var(--bg-card);
  border: 2px solid rgba(199, 125, 255, 0.15);
  transition: border-color 0.2s;
}

.rules-block[open] {
  border-color: var(--primary);
}

.rules-summary {
  font-size: 8px;
  padding: 14px 16px;
  cursor: pointer;
  color: var(--primary);
  letter-spacing: 1px;
  list-style: none;
  user-select: none;
  transition: color 0.2s;
}

.rules-summary:hover {
  color: var(--accent);
}

.rules-summary::-webkit-details-marker {
  display: none;
}

.rules-summary::before {
  content: '> ';
  color: var(--secondary);
}

details[open] .rules-summary::before {
  content: 'v ';
}

.rules-content {
  padding: 0 16px 16px;
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.7;
}

.rules-content p {
  margin-bottom: 8px;
}

.rules-content strong {
  color: var(--text);
}

/* =============================================
   Footer
   ============================================= */
.footer {
  text-align: center;
  padding: 36px 16px;
  font-size: 7px;
  color: var(--text-dim);
  border-top: 3px solid;
  border-image: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--mint)) 1;
  letter-spacing: 1px;
  line-height: 2.5;
}

.footer-sub {
  font-family: 'Courier New', Courier, monospace;
  font-size: 10px;
  color: var(--lilac);
}

/* =============================================
   Confetti Canvas
   ============================================= */
#confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
}

/* =============================================
   Error State
   ============================================= */
.error-message {
  text-align: center;
  padding: 60px 20px;
  color: var(--primary);
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  line-height: 2;
}

.error-message p {
  margin-bottom: 16px;
}

.error-hint {
  color: var(--text-dim);
  font-family: 'Courier New', Courier, monospace;
  font-size: 12px;
}

/* =============================================
   Responsive - Desktop
   ============================================= */
@media (min-width: 600px) {
  .hero-title {
    font-size: 32px;
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .challenge-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .podium-bar {
    width: 120px;
  }

  .filter-tab {
    font-size: 8px;
    padding: 10px 14px;
  }

  .podium {
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .hero-title {
    font-size: 38px;
  }

  .section {
    padding: 48px 24px;
  }

  .challenge-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}