/* Updated Glassmorphic Budget Tracker Styling with Soft Light Mode */

:root {
    --primary: #31debf;
    --secondary: #29ee6b;
    --text-light: #f2f7f9;
    --text-dark: #d9e2ee;
    --glass-bg: rgba(255, 255, 255, 0.201);
    --glass-border: rgba(255, 255, 255, 0.222);
    --shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
    --hover-color: rgba(56, 249, 215, 0.6);
    --gradient-bg: linear-gradient(135deg, #158061, #182f29, #2c5364);
  }
  
  
  .light-mode {
    --gradient-bg: linear-gradient(135deg, #ffffff, #a95bee); /* Soft bluish gradient */
    --text-light: #051230;
    --glass-bg: rgba(255, 255, 255, 0.807);
    --glass-border: rgba(0, 0, 0, 0.08);
    --shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    --primary: #9a7cf3; /* Soft purple */
    --secondary: #7f4fee;
    --hover-color: rgba(74, 7, 233, 0.4); /* Purple hover in day mode */
    .section-title {
        margin-top: 1.5rem;
        font-weight: 600;
        color: #3186ee;
      }
  }
  
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s ease;
  }
  
  body {
    background: var(--gradient-bg);
    color: var(--text-light);
    display: flex;
    justify-content: center;
    align-items: start; /* not center */
    min-height: 100vh; /* changed from height: 100vh */
    padding: 1rem 2rem 2rem 1rem;
    perspective: 10000px;
    position: relative;
    overflow-x: hidden;
  }
  
  
  .theme-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 999;
  }
  
  .container {
    max-width: 520px;
    width: 100%;
    animation: fadeInUp 1s ease-in-out;
    transform-style: preserve-3d;
  }
  
  .tracker-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    backdrop-filter: blur(16px);
    padding: 1rem;
    box-shadow: var(--shadow);
    transform: rotateX(2deg) rotateY(1deg);
    transition: transform 0.6s ease, box-shadow 0.6s ease;
  }
  
  .tracker-card:hover {
    transform: scale(1.015) rotateX(0deg) rotateY(0deg);
    box-shadow: 0 0 10px var(--hover-color);
  }
  
  .heading {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    text-align: center;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .balance-section {
    text-align: center;
    margin: 1.2rem 0;
  }
  
  .balance-section p {
    font-size: 2.2rem;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(254, 253, 253, 0.2);
  }
  
  .summary {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    box-shadow: inset 0 0 8px rgba(255, 255, 255, 0.05);
  }
  
  .summary div {
    text-align: center;
    flex: 1;
  }
  
  .money {
    font-size: 1.2rem;
    font-weight: 600;
  }
  
  .plus {
    color: var(--primary);
  }
  
  .minus {
    color: #e31515cf;
  }
  
  .section-title {
    margin-top: 1.5rem;
    font-weight: 600;
    color: #dbee31;
  }
  
  .list {
    list-style-type: none;
    margin: 1rem 0;
    max-height: 180px;
    overflow-y: auto;
    padding-right: 5px;
    border-radius: 10px;
  }
  
  .list li {
    background-color: rgba(249, 242, 242, 0.08);
    padding: 0.8rem;
    margin: 0.5rem 0;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 5px solid transparent;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  }
  
  .list li:hover {
    transform: translateX(6px);
    background-color: rgba(255, 255, 255, 0.281);
  }
  
  .list li.plus {
    border-left: 5px solid var(--primary);
  }
  
  .list li.minus {
    border-left: 5px solid #ff6b6b;
  }
  
  form {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: 1rem;
  }
  
  form input {
    padding: 0.8rem 1rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.16);
    color: var(--text-light);
    box-shadow: inset 0 0 6px rgba(255, 255, 255, 0.059);
  }
  
  form input:focus {
    outline: none;
    box-shadow: 0 0 12px var(--primary);
    background: rgba(228, 224, 224, 0.15);
  }
  
  .btn {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: #121111;
    border: none;
    padding: 0.8rem;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.4s ease, transform 0.2s ease;
    box-shadow: 0 0 10px var(--hover-color);
  }
  
  .btn:hover {
    transform: translateY(-3px);
    background: linear-gradient(90deg, var(--secondary), var(--primary));
  }
  
  .delete-btn {
    background: none;
    border: none;
    color: #ff6b6b;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.2s;
  }
  
  .delete-btn:hover {
    transform: scale(1.2);
    color: #ff8787;
  }
  
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(40px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .animated-list li {
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: 0.1s;
  }
  
  @media (max-width: 600px) {
    .tracker-card {
      padding: 1.5rem;
    }
  
    .heading {
      font-size: 1.8rem;
    }
  
    form input,
    .btn {
      font-size: 0.9rem;
      padding: 0.6rem 0.8rem;
    }
  
    .balance-section p {
      font-size: 1.6rem;
    }
  
    .theme-switch {
      top: 10px;
      right: 10px;
      transform: scale(0.9);
    }
  }