/* Styling for JITTER */
:root {
    --background-color: #f5f3ee;
    --text-color: #1a1a1a;
    --primary-color: #000000;
    --primary-light: #333333;
    --accent-color: #cf8065;
    --accent-light: #e6a08a;
    --neutral-50: #f5f3ee;
    --neutral-100: #e9e5dc;
    --neutral-200: #d9d4c5;
    --neutral-300: #c0baa8;
    --neutral-400: #a19a86;
    --neutral-500: #7e7865;
    --neutral-600: #5e5a4c;
    --neutral-700: #403e34;
    --neutral-800: #262520;
    --neutral-900: #1a1a1a;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-xxl: 1.5rem;
    --transition: all 0.2s ease;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: var(--font-sans);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.6;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
  }
  
  /* Header */
  header {
    background-color: var(--background-color);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 10;
  }
  
  .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
  }
  
  .logo {
    display: flex;
    align-items: center;
  }
  
  .nav-links {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 2rem;
  }
  
  .app-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.025em;
  }
  
  .nav-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
  }
  
  .nav-link:hover {
    color: var(--accent-color);
  }
  
  .btn-black {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
  }
  
  .btn-black:hover {
    background-color: var(--primary-light);
  }
  
  /* Main Content */
  main {
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
    padding: 4rem 0;
  }
  
  .hero {
    margin-bottom: 4rem;
    text-align: center;
    margin: 0 auto;
    max-width: 800px;
  }
  
  .hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
    color: var(--neutral-700);
    max-width: 800px;
    margin: 0 auto 2rem;
  }
  
  .accent-text {
    color: var(--accent-color);
  }
  
  .title-underline {
    text-decoration: underline;
    text-decoration-color: var(--accent-color);
    text-decoration-thickness: 4px;
    text-underline-offset: 4px;
  }
  
  .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
  }
  
  .card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
  }
  
  .card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
  }
  
  .card-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--neutral-500);
    margin-bottom: 1rem;
  }
  
  .card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
  }
  
  .card-text {
    color: var(--neutral-700);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
  }
  
  .card-wide {
    grid-column: span 2;
  }
  
  .btn-outline {
    display: inline-block;
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--neutral-300);
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
  }
  
  .btn-outline:hover {
    background-color: var(--neutral-100);
    border-color: var(--neutral-400);
  }
  
  /* Game Components */
  .game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
  }
  
  .timer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }
  
  .timer {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 4px solid var(--accent-color);
    border-radius: 50%;
    background-color: var(--white);
    box-shadow: 0 4px 10px rgba(207, 128, 101, 0.2);
  }
  
  .timer-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
  }
  
  .timer-label {
    font-size: 1rem;
    color: var(--neutral-600);
    font-weight: 500;
  }
  
  .counter {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .counter-value {
    font-size: 5rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
  }
  
  .counter-label {
    font-size: 1.125rem;
    color: var(--neutral-600);
    font-weight: 500;
    margin-top: 0.5rem;
  }
  
  .instruction {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    max-width: 400px;
    line-height: 1.4;
  }
  
  .game-controls {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 300px;
    gap: 1rem;
  }
  
  /* Results Components */
  .results {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
  }
  
  .score-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
  }
  
  .score {
    font-size: 6rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
  }
  
  .score-label {
    font-size: 1.25rem;
    color: var(--neutral-600);
    margin: 0.75rem 0 1.5rem;
    font-weight: 500;
  }
  
  .personal-best {
    background-color: var(--accent-color);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
  }
  
  .distribution {
    width: 100%;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 3rem;
    position: relative;
    box-shadow: var(--shadow);
  }
  
  .distribution-title {
    text-align: center;
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
  }
  
  .chart-container {
    width: 100%;
    height: 180px;
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    gap: 0.25rem;
    margin-top: 1.5rem;
  }
  
  .chart-bar {
    width: 8%;
    background-color: var(--neutral-200);
    transition: var(--transition);
    position: relative;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  }
  
  .chart-bar.current {
    background-color: var(--accent-color);
  }
  
  .chart-label {
    position: absolute;
    bottom: -30px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 0.75rem;
    color: var(--neutral-600);
  }
  
  .user-indicator {
    position: absolute;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 15px solid var(--accent-color);
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
  }
  
  /* Profile Components */
  .profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
  }
  
  .profile-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 2.5rem;
  }
  
  .username {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
  }
  
  .stats {
    width: 100%;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow);
  }
  
  .stat-title {
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 0.75rem;
    color: var(--neutral-600);
  }
  
  .stat-value {
    font-size: 3.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 0.5rem;
    line-height: 1.1;
    color: var(--primary-color);
  }
  
  .stat-value.top-score {
    color: var(--primary-color);
  }
  
  .stat-row {
    display: flex;
    justify-content: space-around;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--neutral-200);
  }
  
  .stat-col {
    text-align: center;
  }
  
  .stat-value.avg-score {
    color: var(--accent-color);
  }
  
  .stat-value.games-played {
    color: var(--primary-color);
  }
  
  /* Forms */
  .form-container {
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
  }
  
  .form-group {
    margin-bottom: 1.75rem;
  }
  
  .form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--neutral-700);
    font-size: 0.95rem;
  }
  
  .form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius);
    transition: var(--transition);
    background-color: var(--white);
  }
  
  .form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(207, 128, 101, 0.2);
  }
  
  /* Buttons */
  .btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
  }
  
  .btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
  }
  
  .btn-primary:hover {
    background-color: var(--primary-light);
  }
  
  .btn-full {
    width: 100%;
  }
  
  .btn-accent {
    background-color: var(--accent-color);
    color: var(--white);
  }
  
  .btn-accent:hover {
    background-color: var(--accent-light);
  }
  
  /* Responsive Adjustments */
  @media (max-width: 768px) {
    .hero-title {
      font-size: 2.5rem;
    }
    
    .card-grid {
      grid-template-columns: 1fr;
    }
    
    .card-wide {
      grid-column: span 1;
    }
    
    .score {
      font-size: 4rem;
    }
    
    .timer {
      width: 100px;
      height: 100px;
    }
    
    .timer-value {
      font-size: 2rem;
    }
  }
  
  @media (max-width: 480px) {
    .counter-value {
      font-size: 3.5rem;
    }
    
    .hero-title {
      font-size: 2rem;
    }
    
    .instruction {
      font-size: 1.25rem;
    }
  }