/* =========================================================================
   VARIABLES & COLOR PALETTE
   ========================================================================= */
:root {
  /* Vibrant, kid-friendly colors */
  --color-bg: #e0f2fe;
  /* Light sky blue */
  --color-panel: #ffffff;
  --color-text-main: #334155;
  --color-text-muted: #64748b;

  /* Primary Action Colors */
  --color-blue: #3b82f6;
  --color-blue-dark: #2563eb;
  --color-green: #22c55e;
  --color-green-dark: #16a34a;
  --color-red: #ef4444;
  --color-red-dark: #dc2626;
  --color-purple: #a855f7;
  --color-purple-dark: #9333ea;
  --color-pink: #ec4899;
  --color-pink-dark: #db2777;
  --color-orange: #f97316;
  --color-orange-dark: #ea580c;
  --color-cyan: #06b6d4;
  --color-cyan-dark: #0891b2;
  --color-yellow: #eab308;
  --color-yellow-dark: #ca8a04;
  --color-gray: #94a3b8;
  --color-gray-dark: #64748b;

  /* Typography */
  --font-game: 'Fredoka One', cursive;
  --font-ui: 'Nunito', sans-serif;

  /* Shadows & Borders */
  --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-btn: 0 6px 0 rgb(0 0 0 / 0.15);
  --shadow-btn-active: 0 2px 0 rgb(0 0 0 / 0.15);
  --shadow-panel: 0 10px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --border-radius-lg: 24px;
  --border-radius-md: 16px;
  --border-radius-sm: 8px;
}

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

body {
  font-family: var(--font-ui);
  background-color: var(--color-bg);
  background-image: radial-gradient(circle at 50% 50%, #bae6fd 0%, #e0f2fe 100%);
  color: var(--color-text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 20px;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-game);
  color: var(--color-blue-dark);
  line-height: 1.4;
  text-shadow: 2px 2px 0px rgba(0, 0, 0, 0.05);
}

/* =========================================================================
   LAYOUT & CONTAINERS
   ========================================================================= */
.app-container {
  display: grid;
  grid-template-columns: 280px 1fr 280px;
  grid-template-rows: auto 1fr;
  gap: 20px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  flex: 1;
}

header {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
}

aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

main {
  display: flex;
  flex-direction: column;
}

.panel {
  background-color: var(--color-panel);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-panel);
  padding: 24px;
  border: 4px solid white;
}

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

/* =========================================================================
   UI ELEMENTS (Inputs, Selects, Tags)
   ========================================================================= */
input[type="text"],
input[type="number"],
input[type="password"],
select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--border-radius-md);
  border: 3px solid #cbd5e1;
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-main);
  background-color: #f8fafc;
  outline: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  margin-bottom: 10px;
}

input:focus,
select:focus {
  border-color: var(--color-blue);
  background-color: #fff;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.25);
  transform: translateY(-2px);
}

.admin-tag {
  display: inline-block;
  background-color: #334155;
  color: white;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.admin-tag:hover {
  background-color: #0f172a;
}

/* =========================================================================
   BUTTONS (.mc-btn)
   ========================================================================= */
.mc-btn {
  font-family: var(--font-game);
  font-size: 0.8rem;
  line-height: 1.4;
  padding: 14px 20px;
  border-radius: var(--border-radius-md);
  border: none;
  cursor: pointer;
  color: white;
  text-transform: uppercase;
  font-weight: bold;
  position: relative;
  transition: all 0.1s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  text-shadow: 1px 1px 0px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-decoration: none;
  box-shadow: var(--shadow-btn);
  margin-bottom: 6px;
  /* Space for the shadow drop */
}

/* Button Colors */
.mc-btn.blue {
  background-color: var(--color-blue);
  box-shadow: 0 6px 0 var(--color-blue-dark);
  border: 2px solid var(--color-blue-dark);
}

.mc-btn.green {
  background-color: var(--color-green);
  box-shadow: 0 6px 0 var(--color-green-dark);
  border: 2px solid var(--color-green-dark);
}

.mc-btn.red {
  background-color: var(--color-red);
  box-shadow: 0 6px 0 var(--color-red-dark);
  border: 2px solid var(--color-red-dark);
}

.mc-btn.purple {
  background-color: var(--color-purple);
  box-shadow: 0 6px 0 var(--color-purple-dark);
  border: 2px solid var(--color-purple-dark);
}

.mc-btn.pink {
  background-color: var(--color-pink);
  box-shadow: 0 6px 0 var(--color-pink-dark);
  border: 2px solid var(--color-pink-dark);
}

.mc-btn.orange {
  background-color: var(--color-orange);
  box-shadow: 0 6px 0 var(--color-orange-dark);
  border: 2px solid var(--color-orange-dark);
}

.mc-btn.cyan {
  background-color: var(--color-cyan);
  box-shadow: 0 6px 0 var(--color-cyan-dark);
  border: 2px solid var(--color-cyan-dark);
}

.mc-btn.yellow {
  background-color: var(--color-yellow);
  box-shadow: 0 6px 0 var(--color-yellow-dark);
  border: 2px solid var(--color-yellow-dark);
  color: #451a03;
  text-shadow: none;
}

.mc-btn.gray {
  background-color: var(--color-gray);
  box-shadow: 0 6px 0 var(--color-gray-dark);
  border: 2px solid var(--color-gray-dark);
}

.mc-btn.blue-dark {
  background-color: var(--color-blue-dark);
  box-shadow: 0 6px 0 #1e3a8a;
  border: 2px solid #1e3a8a;
}

/* Interactive States */
.mc-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 0 rgba(0, 0, 0, 0.15);
  /* Slightly generic shadow on hover to keep the 3D look */
}

/* Must maintain specific shadow colors on hover */
.mc-btn.blue:hover {
  box-shadow: 0 8px 0 var(--color-blue-dark);
}

.mc-btn.green:hover {
  box-shadow: 0 8px 0 var(--color-green-dark);
}

.mc-btn.red:hover {
  box-shadow: 0 8px 0 var(--color-red-dark);
}

.mc-btn.purple:hover {
  box-shadow: 0 8px 0 var(--color-purple-dark);
}

.mc-btn.pink:hover {
  box-shadow: 0 8px 0 var(--color-pink-dark);
}

.mc-btn.orange:hover {
  box-shadow: 0 8px 0 var(--color-orange-dark);
}

.mc-btn.cyan:hover {
  box-shadow: 0 8px 0 var(--color-cyan-dark);
}

.mc-btn.yellow:hover {
  box-shadow: 0 8px 0 var(--color-yellow-dark);
}

.mc-btn.gray:hover {
  box-shadow: 0 8px 0 var(--color-gray-dark);
}

.mc-btn.blue-dark:hover {
  box-shadow: 0 8px 0 #1e3a8a;
}

.mc-btn:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.3) !important;
  /* Squish effect */
  margin-bottom: 10px;
  /* Offset the 4px transform to prevent layout jitter */
}

/* Big Buttons (Grid Items) */
.mc-btn.big-btn {
  padding: 30px 15px;
  border-radius: 20px;
}

.mc-btn.big-btn small {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.85rem;
  background-color: rgba(0, 0, 0, 0.2);
  padding: 4px 10px;
  border-radius: 12px;
  text-transform: none;
}

/* =========================================================================
   GRIDS
   ========================================================================= */
.subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 25px;
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 15px;
}

.level-block {
  background-color: var(--color-blue);
  color: white;
  font-family: var(--font-game);
  font-size: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100px;
  border-radius: var(--border-radius-md);
  box-shadow: 0 6px 0 var(--color-blue-dark);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.level-block:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 0 var(--color-blue-dark);
}

.level-block:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 var(--color-blue-dark);
}

.level-block.current {
  background-color: var(--color-green);
  box-shadow: 0 6px 0 var(--color-green-dark);
}

.level-block.current:hover {
  box-shadow: 0 8px 0 var(--color-green-dark);
}

.level-block.current:active {
  box-shadow: 0 2px 0 var(--color-green-dark);
}

.level-block.completed {
  background-color: var(--color-yellow);
  box-shadow: 0 6px 0 var(--color-yellow-dark);
  color: #451a03;
}

.level-block.locked {
  background-color: var(--color-gray);
  box-shadow: 0 6px 0 var(--color-gray-dark);
  cursor: not-allowed;
  filter: grayscale(100%);
  opacity: 0.7;
}

.level-block.locked:hover {
  transform: none;
  box-shadow: 0 6px 0 var(--color-gray-dark);
}

.level-block.locked::after {
  content: '🔒';
  font-size: 2rem;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.8;
}

/* =========================================================================
   LEADERBOARD & NOTIFICATIONS
   ========================================================================= */
.leaderboard-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 15px;
}

.leaderboard-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #f1f5f9;
  padding: 10px 15px;
  border-radius: var(--border-radius-sm);
  font-weight: bold;
  font-size: 0.9rem;
  transition: transform 0.2s;
  border-left: 4px solid var(--color-blue);
}

.leaderboard-item:hover {
  transform: translateX(5px);
  background-color: #e2e8f0;
}

.leaderboard-item.rank-1 {
  border-left-color: #fbbf24;
  background-color: #fef3c7;
}

.leaderboard-item.rank-2 {
  border-left-color: #94a3b8;
  background-color: #f8fafc;
}

.leaderboard-item.rank-3 {
  border-left-color: #b45309;
  background-color: #ffedd5;
}

.coin-badge {
  background-color: #fef08a;
  color: #854d0e;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 4px;
}

#notification-area {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.notif {
  background-color: var(--color-panel);
  color: var(--color-text-main);
  padding: 15px 20px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-panel);
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideInRight 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  border-left: 5px solid var(--color-green);
}

.notif.error {
  border-left-color: var(--color-red);
}

/* =========================================================================
   MODALS (Overlays)
   ========================================================================= */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease-out forwards;
}

.modal-box {
  background-color: var(--color-panel);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  max-width: 90vw;
  width: 600px;
  text-align: center;
  animation: bounceIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  border: 4px solid var(--color-blue-dark);
}

.modal-box h3 {
  margin-top: 0;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

/* =========================================================================
   AVATAR SYSTEM (Minecraft Style)
   ========================================================================= */
.avatar-container {
  display: flex;
  justify-content: center;
  margin: 10px auto 20px auto;
  transform: scale(1.5);
  transform-origin: top center;
  position: relative;
  width: 80px;
  height: 160px;
}

.mc-part {
  background-size: cover;
  background-position: center;
  background-color: #e2e8f0;
  /* Default block color */
  border: 2px solid rgba(0, 0, 0, 0.1);
  image-rendering: pixelated;
  /* Essential for blocky textures */
}

.mc-head {
  width: 40px;
  height: 40px;
  background-color: #fcd34d;
  border-radius: 4px;
  position: absolute;
  top: 0;
  left: 20px;
  z-index: 3;
  box-shadow: inset -4px -4px 0px rgba(0, 0, 0, 0.1);
}

.mc-eyes {
  position: absolute;
  top: 16px;
  width: 100%;
  display: flex;
  justify-content: space-around;
  padding: 0 4px;
}

.eye {
  width: 8px;
  height: 8px;
  background-color: white;
  display: flex;
  align-items: center;
}

.pupil {
  width: 4px;
  height: 4px;
  background-color: #1e3a8a;
  margin-left: 2px;
}



.mc-torso {
  width: 40px;
  height: 60px;
  background-color: #3b82f6;
  border-radius: 2px;
  position: absolute;
  top: 38px;
  left: 20px;
  z-index: 2;
  box-shadow: inset -4px -4px 0px rgba(0, 0, 0, 0.1);
}

.mc-arm {
  width: 20px;
  height: 60px;
  background-color: #fcd34d;
  border-radius: 2px;
  box-shadow: inset -2px -4px 0px rgba(0, 0, 0, 0.1);
  position: absolute;
  top: 38px;
  z-index: 1;
}

#avArmL,
#prevArmL {
  left: 0px;
}

#avArmR,
#prevArmR {
  left: 60px;
}



.mc-leg {
  width: 20px;
  height: 60px;
  background-color: #1e3a8a;
  border: 2px solid rgba(0, 0, 0, 0.1);
  box-shadow: inset -2px -4px 0px rgba(0, 0, 0, 0.1);
  border-radius: 2px;
  position: absolute;
  top: 96px;
  z-index: 0;
}

#avLegL,
#prevLegL {
  left: 20px;
}

#avLegR,
#prevLegR {
  left: 40px;
}

/* =========================================================================
   ANIMATIONS
   ========================================================================= */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(20px);
  }

  50% {
    opacity: 1;
    transform: scale(1.05) translateY(-5px);
  }

  100% {
    transform: scale(1) translateY(0);
  }
}

@keyframes slideInRight {
  0% {
    opacity: 0;
    transform: translateX(50px);
  }

  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

/* =========================================================================
   MISC & FOOTER
   ========================================================================= */
.footer-credit {
  text-align: center;
  color: var(--color-text-muted);
  margin-top: 30px;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.8rem;
}

/* Scrollbar styling for a cleaner look */
::-webkit-scrollbar {
  width: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* =========================================================================
   RESPONSIVE DESIGN
   ========================================================================= */
@media (max-width: 1024px) {
  .app-container {
    grid-template-columns: 240px 1fr;
  }

  aside:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .app-container {
    grid-template-columns: 1fr;
    display: flex;
  }

  header {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  header>div {
    text-align: center !important;
  }

  .subject-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }

  .modal-box {
    padding: 20px;
  }
}

/* =========================================================================
   ALGORITHMS (BLOCKLY CLONE)
   ========================================================================= */
.algo-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background-color: #f8fafc;
  padding: 15px;
  border-radius: var(--border-radius-md);
  border: 2px solid #cbd5e1;
}

.algo-workspace {
  min-height: 150px;
  background-color: #ffffff;
  border: 2px dashed #94a3b8;
  border-radius: var(--border-radius-sm);
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.algo-toolbox {
  min-height: 80px;
  background-color: #e2e8f0;
  border-radius: var(--border-radius-sm);
  padding: 15px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.code-block {
  padding: 10px 15px;
  border-radius: 8px;
  color: white;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: grab;
  user-select: none;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.2);
  transition: transform 0.1s;
}

.code-block:active {
  cursor: grabbing;
  transform: translateY(4px);
  box-shadow: 0 0 0 rgba(0, 0, 0, 0.2);
}

.blk-action {
  background-color: var(--color-blue);
  border: 2px solid var(--color-blue-dark);
}

.blk-event {
  background-color: var(--color-orange);
  border: 2px solid var(--color-orange-dark);
  border-radius: 20px 20px 8px 8px;
  /* Special shape for event */
}

.blk-control {
  background-color: var(--color-purple);
  border: 2px solid var(--color-purple-dark);
}

.blk-logic {
  background-color: var(--color-green);
  border: 2px solid var(--color-green-dark);
}

.shake-anim {
  animation: shake 0.5s;
}

@keyframes shake {
  0% {
    transform: translateX(0);
  }

  25% {
    transform: translateX(-5px);
  }

  50% {
    transform: translateX(5px);
  }

  75% {
    transform: translateX(-5px);
  }

  100% {
    transform: translateX(0);
  }
}