/* Base Styles */
:root {
  --primary: #b0c4de; /* Light Steel Blue */
  --primary-light: #d8e4f0; /* Lighter Steel Blue */
  --primary-dark: #8ba3c7; /* Steel Blue */
  --secondary: #e6eef7; /* Light Blue Grey */
  --accent: #6b8ead; /* Steel Blue */
  --text-light: #2c3e50; /* Dark Blue Grey */
  --text-dark: #1a2c3d; /* Darker Blue Grey */
  --bg-light: #f5f7fa; /* Light Grey Blue */
  --bg-dark: #ffffff; /* White */
  --border-light: #d1dce8; /* Light Blue Grey */
  --shadow: 0 4px 6px rgba(107, 142, 173, 0.2);
  --transition: all 0.3s ease;
}

/* Reset and Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family:
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 2rem;
  text-align: center;
}

.header {
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.heading {
  text-align: center;
  margin-bottom: 2rem;
  padding-top: 2rem;
}

.cute-image {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.heading h1 {
  color: var(--primary-dark);
  font-size: 2.5rem;
  margin: 1rem 0;
}

.heading p {
  color: var(--text-light);
  font-size: 1.2rem;
  margin: 0;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--primary);
  color: var(--text-light);
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.btn:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
}

/* Volume Control */
.volume-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--border-light);
  padding: 1rem;
  margin-bottom: 2rem;
  border-radius: 0.5rem;
  background-color: var(--bg-light);
}

.board-summary {
  background-color: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: 0.5rem;
  padding: 1rem;
  margin: 1.5rem auto 2rem;
  max-width: 640px;
}

.board-summary p {
  margin-bottom: 0.35rem;
}

.board-hint {
  font-size: 0.95rem;
  color: var(--text-light);
}

.slider-label {
  margin-bottom: 0.5rem;
  color: var(--text-light);
  font-size: 1rem;
}

.slider {
  height: 6px;
  width: 200px;
  -webkit-appearance: none;
  background-color: var(--primary-light);
  outline: none;
  border-radius: 3px;
  transition: var(--transition);
}

.slider:hover {
  opacity: 0.9;
}

.slider::-webkit-slider-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  -webkit-appearance: none;
  transition: var(--transition);
}

.slider::-webkit-slider-thumb:hover {
  background: var(--primary-dark);
  transform: scale(1.1);
}

/* Soundboard Grid */
.soundboard {
  display: grid;
  gap: 1rem;
  width: 90%;
  max-width: 800px;
  margin: 0 auto;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
}

.key-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--bg-light);
  padding: 1rem;
  border-radius: 0.5rem;
  position: relative;
  border: 2px solid var(--border-light);
  transition: var(--transition);
}

.key-container:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.key-container.active {
  background-color: var(--primary-light);
  transform: scale(0.95);
}

.key {
  font-size: 1.5rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.key-label {
  font-size: 0.875rem;
  color: var(--text-light);
  min-height: 1.25rem;
  margin-bottom: 0.25rem;
}

.add-button,
.delete-button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  cursor: pointer;
  margin: 0.25rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.add-button:hover,
.delete-button:hover {
  background-color: var(--primary-dark);
  transform: scale(1.1);
}

.delete-button {
  background: #ff6b6b;
}

.delete-button:hover {
  background-color: #ff5252;
}

.key-container.drag-over {
  border-color: var(--accent);
  background-color: var(--primary-light);
  transform: scale(1.05);
}

/* Footer */
.footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 2px solid var(--border-light);
  text-align: center;
}

.footer p {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.mt-4 {
  margin-top: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .heading h1 {
    font-size: 2rem;
  }

  .heading p {
    font-size: 1rem;
  }

  .soundboard {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 0.75rem;
  }

  .key-container {
    padding: 0.75rem;
  }

  .key {
    font-size: 1.2rem;
  }

  .add-button,
  .delete-button {
    width: 25px;
    height: 25px;
    font-size: 1rem;
  }
}