body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: #123c5a;
  background:
    radial-gradient(circle at 20% 30%, #7fd8ff 0%, transparent 45%),
    radial-gradient(circle at 80% 20%, #bdeeff 0%, transparent 45%),
    radial-gradient(circle at 70% 80%, #62c84c 0%, transparent 45%),
    radial-gradient(circle at 30% 70%, #e8fbff 0%, transparent 45%),
    linear-gradient(
      to bottom,
      #7fd8ff 0%,
      #bdeeff 42%,
      #e8fbff 60%,
      #62c84c 100%
    );
  background-size: 200% 200%;
  animation: trippyBackground 8s ease-in-out infinite;
  background-attachment: fixed;
}

@keyframes trippyBackground {
  0% {
    background-position:
      0% 0%,
      100% 0%,
      100% 100%,
      0% 100%,
      0% 0%;
  }

  25% {
    background-position:
      50% 30%,
      60% 70%,
      30% 60%,
      70% 20%,
      30% 50%;
  }

  50% {
    background-position:
      100% 100%,
      0% 100%,
      0% 0%,
      100% 0%,
      100% 100%;
  }

  75% {
    background-position:
      40% 80%,
      80% 30%,
      60% 20%,
      20% 70%,
      50% 30%;
  }

  100% {
    background-position:
      0% 0%,
      100% 0%,
      100% 100%,
      0% 100%,
      0% 0%;
  }
}

  /* LOGIN */
  #login-section {
    max-width: 460px;
    margin: 90px auto;
    padding: 35px;
    background: rgba(255, 255, 255, 0.88);
    border: 2px solid rgba(255, 255, 255, 0.9);
    border-radius: 24px;
    box-shadow:
      0 12px 30px rgba(0, 92, 140, 0.25),
      inset 0 1px 0 rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(8px);
  }

  #login-section h1 {
    color: #168ed1;
    font-weight: 800;
    text-shadow: 0 1px 0 white;
  }

  #login-section p {
    color: #4d7990;
  }

  /* INPUTS */
  .form-control {
    border-radius: 14px;
    border: 2px solid #8ed6f5;
    padding: 12px 14px;
    background: linear-gradient(
      to bottom,
      #ffffff,
      #effcff
    );
  }
  .form-control:focus {
    border-color: #28aee8;
    box-shadow:
      0 0 0 0.2rem rgba(40, 174, 232, 0.18);
  }

  /* BUTTONS */
  .btn {
    border-radius: 18px;
    font-weight: bold;
    transition: 0.2s ease;
    box-shadow:
      0 5px 10px rgba(0, 80, 120, 0.2),
      inset 0 1px 0 rgba(255, 255, 255, 0.8);
  }

  .btn:hover {
    transform: translateY(-2px);
  }

  .btn-primary {
    background: linear-gradient(
      to bottom,
      #53c8ff,
      #078fd0
    );

    border: 1px solid #0079b5;
    color: white;
  }

  .btn-primary:hover {
    background: linear-gradient(
      to bottom,
      #6ed3ff,
      #119fdc
    );
  }

  .btn-success {
    background: linear-gradient(
      to bottom,
      #9be66c,
      #3ead3c
    );

    border: 1px solid #2c9430;
    color: white;
  }

  .btn-success:hover {
    background: linear-gradient(
      to bottom,
      #b1ee86,
      #4abd47
    );
  }

  .btn-danger {
    background: linear-gradient(
      to bottom,
      #ff8c7e,
      #e64d3f
    );

    border: 1px solid #c43c30;
    color: white;
  }

  .btn-light {
    background: linear-gradient(
      to bottom,
      #ffffff,
      #dff5ff
    );

    border: 1px solid #8ad0ef;
    color: #087eae;
  }

  /* DASHBOARD */
  #dashboard {
    display: none;
  }

  /* NAVBAR */
  .navbar {
    background: linear-gradient(
      to bottom,
      #53c8ff,
      #128fc9
    ) !important;
    border-bottom: 2px solid rgba(255, 255, 255, 0.5);
    box-shadow:
      0 5px 14px rgba(0, 90, 140, 0.25);
  }

  .navbar-brand {
    font-size: 1.6rem;
    font-weight: 800;
    text-shadow:
      0 1px 2px rgba(0, 0, 0, 0.2);
  }

  /* ACTIVITY CARD */
  #activity-section {
    min-height: 340px;
    background: linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.95),
      rgba(225, 248, 255, 0.92)
    );
    border: 2px solid rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 45px;
    box-shadow:
      0 12px 25px rgba(0, 95, 145, 0.22),
      inset 0 1px 0 rgba(255, 255, 255, 0.9);
    position: relative;
    overflow: hidden;
  }

  #activity-section::before {
    position: absolute;
    top: 18px;
    left: 22px;
    font-size: 2rem;
  }

  #activity-section::after {
    position: absolute;
    right: 22px;
    bottom: 18px;
    font-size: 2rem;
  }

  #activity-section h2 {
    color: #168ec8;
    font-weight: 800;
  }

  #activity {
    font-size: 28px;
    font-weight: 800;

    color: #156a8f;

    margin: 30px 0;
    padding: 22px;

    background: linear-gradient(
      to bottom,
      #ffffff,
      #dff8ff
    );

    border: 2px solid #9cdef7;
    border-radius: 18px;

    box-shadow:
      inset 0 2px 8px rgba(49, 156, 198, 0.12),
      0 4px 10px rgba(0, 94, 140, 0.08);
  }

  /* SAVED PANEL */

  #saved-panel {
    background: linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.95),
      rgba(236, 255, 229, 0.93)
    );

    border: 2px solid rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 28px;
    box-shadow:
      0 12px 25px rgba(50, 130, 60, 0.2),
      inset 0 1px 0 rgba(255, 255, 255, 0.9);
  }

  #saved-panel h3 {
    color: #3b9e42;
    font-weight: 800;
  }

  #saved-list {
    padding-left: 0;
    list-style: none;
  }

  #saved-list li {
    background: linear-gradient(
      to bottom,
      #ffffff,
      #f0ffe9
    );
    margin-bottom: 12px;
    padding: 12px 14px;
    border: 1px solid #a9df9e;
    border-radius: 14px;
    box-shadow:
      0 4px 10px rgba(55, 135, 60, 0.12),
      inset 0 1px 0 rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
  }

  #empty-message {
    background: linear-gradient(
      to bottom,
      #ffffff,
      #efffe8
    );
    border: 1px solid #b7e4ae;
    border-radius: 14px;
    padding: 12px;
    text-align: center;
  }

  /* TEXT */
  .text-secondary {
    color: #568097 !important;
  }

  /* MOBILE */
  @media (max-width: 768px) {
    #login-section {
      margin: 40px 20px;
    }

    #activity-section {
      padding: 30px 20px;
    }

    #activity {
      font-size: 23px;
    }
  }

  
  img { width: 100%; border-radius: 20px; margin-bottom: 15px; }