.home-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: 70vh;
  justify-content: center;
  position: relative;
  z-index: 5;
}

.title-skew {
  font-family: var(--font-header);
  font-size: 4rem;
  font-weight: 900;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 4px;
  background: linear-gradient(to right, var(--neon-pink), var(--neon-cyan), var(--neon-purple), var(--neon-pink));
  background-size: 300% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: glow-shift-anim 8s ease infinite;
  transform: skewX(-5deg);
}

@keyframes glow-shift-anim {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.subtitle-mono {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--neon-cyan);
  text-shadow: var(--shadow-cyan);
  margin-top: 1rem;
  margin-bottom: 2rem;
  letter-spacing: 3px;
}

.intro-desc {
  max-width: 700px;
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 3rem;
}

.home-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

@media (max-width: 768px) {
  .home-hero {
    min-height: auto;
    padding-top: 4rem;
    padding-bottom: 4rem;
  }
  .title-skew {
    font-size: 2.2rem;
  }
  .subtitle-mono {
    font-size: 1.1rem;
  }
  .home-showcase {
    grid-template-columns: 1fr;
  }
}

.player-cassette {
  background-color: #12012c;
  border: 2px solid var(--neon-cyan);
  box-shadow: var(--shadow-cyan);
  border-radius: 4px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.cassette-body {
  width: 100%;
  height: 120px;
  background-color: #270650;
  border: 2px solid var(--neon-pink);
  border-radius: 6px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 1.5rem;
}

.cassette-label {
  width: 75%;
  height: 65px;
  background: repeating-linear-gradient(
    45deg,
    #ff007f,
    #ff007f 10px,
    #00f5ff 10px,
    #00f5ff 20px
  );
  border-radius: 4px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.cassette-label-inner {
  width: 85%;
  height: 75%;
  background-color: #12012c;
  border-radius: 3px;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.cassette-wheel {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 4px dashed var(--neon-cyan);
  background-color: #0b011d;
}

.cassette-wheel.spinning {
  animation: spin-anim 3s linear infinite;
}

.player-controls {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.player-info {
  text-align: center;
  font-family: var(--font-mono);
}

.track-title {
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.track-artist {
  color: var(--neon-pink);
  font-size: 0.8rem;
  letter-spacing: 1px;
}

.player-btns {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.player-btn {
  background: none;
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.player-btn:hover {
  background-color: rgba(0, 245, 255, 0.1);
  box-shadow: var(--shadow-cyan);
}

.player-btn.active {
  background-color: var(--neon-cyan);
  color: #0b011d;
  box-shadow: var(--shadow-cyan);
}

.player-progress {
  width: 100%;
  height: 4px;
  background-color: var(--bg-tertiary);
  border-radius: 2px;
  position: relative;
  cursor: pointer;
}

.progress-fill {
  height: 100%;
  width: 35%;
  background: linear-gradient(90deg, var(--neon-pink), var(--neon-cyan));
  border-radius: 2px;
}

.teacher-grid {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 3rem;
  align-items: start;
}

.teacher-avatar-box {
  background-color: #170335;
  border: 3px solid var(--neon-cyan);
  box-shadow: var(--shadow-cyan);
  padding: 1rem;
  text-align: center;
}

.teacher-img {
  width: 100%;
  height: auto;
  border: 2px solid var(--neon-pink);
  background-color: #0b011d;
  image-rendering: pixelated;
}

.teacher-level {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--neon-yellow);
  text-shadow: 0 0 5px rgba(255, 251, 0, 0.5);
  margin-top: 1rem;
}

.teacher-stats {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.stat-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  text-align: left;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.stat-bar-container {
  width: 100%;
  height: 14px;
  background-color: #0b011d;
  border: 1px solid var(--neon-purple);
  padding: 2px;
  box-sizing: border-box;
}

.stat-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--neon-purple), var(--neon-pink));
  box-shadow: 0 0 8px var(--neon-pink);
}

.teacher-content h1 {
  font-family: var(--font-header);
  font-size: 2.5rem;
  color: var(--neon-pink);
  text-shadow: var(--shadow-pink);
  margin-top: 0;
  text-transform: uppercase;
}

.teacher-badge-container {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.teacher-badge {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 6px 12px;
  background-color: rgba(255, 0, 127, 0.1);
  border: 1px solid var(--neon-pink);
  color: var(--neon-pink);
  border-radius: 4px;
}

@media (max-width: 900px) {
  .teacher-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.rubric-table-wrapper {
  overflow-x: auto;
  border: 2px solid var(--neon-purple);
  box-shadow: var(--shadow-purple);
  margin-bottom: 3rem;
}

.rubric-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-body);
  background-color: rgba(23, 3, 53, 0.8);
  text-align: left;
  min-width: 600px;
}

.rubric-table th,
.rubric-table td {
  padding: 1.2rem;
  border: 1px solid rgba(157, 78, 237, 0.3);
}

.rubric-table th {
  background-color: rgba(157, 78, 237, 0.2);
  font-family: var(--font-header);
  color: var(--neon-cyan);
  text-shadow: var(--shadow-cyan);
  font-size: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-bottom: 2px solid var(--neon-purple);
}

.rubric-table tr:hover {
  background-color: rgba(0, 245, 255, 0.05);
}

.rubric-badge {
  font-family: var(--font-mono);
  padding: 4px 8px;
  border-radius: 3px;
  font-weight: 700;
  text-transform: uppercase;
}

.rubric-badge.project { border: 1px solid var(--neon-pink); color: var(--neon-pink); background-color: rgba(255,0,127,0.1); }
.rubric-badge.homework { border: 1px solid var(--neon-cyan); color: var(--neon-cyan); background-color: rgba(0,245,255,0.1); }
.rubric-badge.attendance { border: 1px solid var(--neon-yellow); color: var(--neon-yellow); background-color: rgba(255,251,0,0.1); }

.calculator-card {
  max-width: 500px;
  margin: 0 auto;
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group-retro {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group-retro label {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--neon-cyan);
  text-shadow: var(--shadow-cyan);
}

.input-retro {
  background-color: #0b011d;
  border: 2px solid var(--neon-purple);
  color: #ffffff;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  outline: none;
  transition: var(--transition-smooth);
}

.input-retro:focus {
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-cyan);
}

.calc-result-box {
  margin-top: 2rem;
  padding: 1.5rem;
  background-color: rgba(0, 245, 255, 0.05);
  border: 2px dashed var(--neon-cyan);
  text-align: center;
}

.calc-result-title {
  font-family: var(--font-header);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.calc-result-score {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 900;
  color: var(--neon-pink);
  text-shadow: var(--shadow-pink);
}

.win95-dialog {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  background-color: #c0c0c0;
  border: 3px solid;
  border-color: #ffffff #808080 #808080 #ffffff;
  padding: 4px;
  z-index: 10000;
  box-shadow: 10px 10px 0px rgba(0,0,0,0.5);
  color: #000000;
}

.win95-titlebar {
  background-color: #000080;
  color: #ffffff;
  padding: 4px 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: Arial, sans-serif;
  font-weight: bold;
  font-size: 14px;
}

.win95-close-btn {
  background-color: #c0c0c0;
  border: 2px solid;
  border-color: #ffffff #808080 #808080 #ffffff;
  width: 18px;
  height: 18px;
  font-size: 10px;
  line-height: 12px;
  text-align: center;
  cursor: pointer;
  color: #000000;
  padding: 0;
}

.win95-close-btn:active {
  border-color: #808080 #ffffff #ffffff #808080;
}

.win95-body {
  padding: 1.5rem;
  font-family: Arial, sans-serif;
  font-size: 14px;
  display: flex;
  gap: 1.5rem;
  align-items: center;
  background-color: #c0c0c0;
}

.win95-icon {
  width: 96px;
  height: 96px;
  object-fit: contain;
}

.win95-text {
  line-height: 1.4;
}

.win95-footer {
  display: flex;
  justify-content: flex-end;
  padding: 10px;
  background-color: #c0c0c0;
}

.win95-btn {
  background-color: #c0c0c0;
  border: 2px solid;
  border-color: #ffffff #808080 #808080 #ffffff;
  padding: 6px 20px;
  cursor: pointer;
  font-family: Arial, sans-serif;
  font-size: 14px;
}

.win95-btn:active {
  border-color: #808080 #ffffff #ffffff #808080;
}

.win95-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 9999;
}

.topics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.topic-illustration-box {
  background-color: #0b011d;
  border: 2px solid var(--neon-cyan);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 250px;
}

.topic-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  width: 100%;
}

.gallery-item {
  border: 1px solid var(--neon-purple);
  padding: 5px;
  background-color: rgba(39, 6, 80, 0.4);
  text-align: center;
}

.gallery-img {
  width: 100%;
  height: 100px;
  object-fit: contain;
  background-color: #0c0022;
}

.gallery-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  margin-top: 0.5rem;
}

.animation-playground {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.animated-dolphin-wrap {
  width: 100px;
  height: 100px;
}

.animated-dolphin {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.slider-group {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.retro-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  outline: none;
  border: 1px solid var(--neon-purple);
}

.retro-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background-color: var(--neon-pink);
  border: 1px solid #ffffff;
  box-shadow: var(--shadow-pink);
  cursor: pointer;
}

@media (max-width: 900px) {
  .topics-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}