:root {
  --bg-color: #ffffff;
  --text-color: #212529;
  --primary-color: #25272e;
  --primary-dark: #25272e;
  --secondary-color: #25272e;
  --success-color: #25272e;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #25272e;
  --border-color: #dee2e6;
  --card-bg: #ffffff;
  --navbar-height: 64px;
  --sidebar-width: 250px;
  --border-radius: 8px;
  /* --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05); */
  --body-bg: #ffffff;
  --navbar-bg: #ffffff;
  --navbar-text: #0f0f10;
}

/* Base styles */
body {
  background-color: var(--body-bg);
  font-family: "JetBrains Mono", monospace;
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
}

main {
  flex: 1 0 auto;
}

/* Modern navbar styling */
.navbar {
  background-color: var(--navbar-bg);
  height: var(--navbar-height);
  /* box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05); */
  padding: 0.75rem 0;
  position: sticky; /* or fixed, depending on your design */
  top: 0;
  z-index: 1000; /* Ensure it's above other content */
}

.navbar-brand {
  font-weight: 600;
  font-size: 1.2rem;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  color: var(--navbar-text) !important;
}

.navbar-brand i {
  color: var(--primary-color);
}

.navbar-nav {
  height: 100%;
}

.nav-item {
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-link {
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0.5rem 1rem !important;
  color: var(--navbar-text) !important;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--primary-color) !important;
}

.nav-link.active {
  color: var(--primary-color) !important;
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: #fff;
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
  margin-right: 1rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Button styling */
.btn {
  font-family: "JetBrains Mono", monospace;
  font-weight: 500;
  border-radius: var(--border-radius);
  padding: 0.5rem 1rem;
  /* transition: all 0.2s ease; */
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* .btn-primary:hover {
  background-color: #000;
  border-color: #000;
} */

.btn-success {
  background-color: var(--success-color);
  border-color: var(--success-color);
}

.btn-success:hover, 
.btn-success:focus, 
.btn-success:active {
    background-color: #25272e !important; /* Default Bootstrap Primary color */
    border-color: #25272e !important;
}

.btn-primary:disabled {
  background-color: #25272e !important; /* Gray color */
  border-color: #25272e !important;
  cursor: not-allowed; /* Optional: Show "not allowed" cursor */
  opacity: 1; /* Match Bootstrap's default disabled opacity */
}


.btn-danger {
  background-color: var(--danger-color);
  border-color: var(--danger-color);
}

.btn-danger:hover,
.btn-danger:focus,
.btn-danger:active {
    background-color: #dc3545 !important; /* Default Bootstrap danger color */
    border-color: #dc3545 !important;
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline-primary:hover {
  background-color: var(--primary-color);
  color: #fff;
}

.btn-primary:hover, 
.btn-primary:focus, 
.btn-primary:active {
    background-color: #25272e !important; /* Default Bootstrap Primary color */
    border-color: #25272e !important;
}



/* Card styling */
.card {
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  /* box-shadow: var(--box-shadow); */
  background-color: var(--card-bg);
  overflow: hidden;
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
}

.card-title i {
  margin-right: 0.5rem;
}

/* Landing page */
.landing-container {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.welcome-card {
  background-color: var(--card-bg);
  padding: 3rem;
  border-radius: 10px;
  /* box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1); */
  max-width: 800px;
  text-align: center;
  /* transition: transform 0.3s ease; */
}

.welcome-icon {
  font-size: 4rem; /* Increased size */
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

.welcome-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(45deg, var(--primary-color), var(--info-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.welcome-subtitle {
  font-size: 1.5rem;
  color: var(--secondary-color);
  margin-bottom: 1.5rem;
}

/* File listing page */
.category-tabs .nav-link {
  color: var(--secondary-color);
  border-radius: 0;
  padding: 0.75rem 1.25rem;
  font-weight: 500;
  border: none;
  border-bottom: 3px solid transparent;
}

.category-tabs .nav-link.active {
  color: var(--primary-color);
  background-color: transparent;
  border-bottom: 3px solid var(--primary-color);
  font-weight: 600;
}

.file-table {
  border-radius: var(--border-radius);
  overflow: hidden;
}

.file-table th {
  background-color: var(--accent-color);
  font-weight: 600;
}

.file-table th,
.file-table td {
  vertical-align: middle;
  padding: 0.75rem 1rem;
}

.file-icon-col {
  width: 50px;
}

.file-icon-cell {
  text-align: center;
  font-size: 1.25rem;
}

.file-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

.file-link:hover {
  text-decoration: underline;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem;
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  /* box-shadow: var(--box-shadow); */
}

.empty-state-icon {
  font-size: 3.5rem;
  color: var(--secondary-color);
  opacity: 0.5;
  margin-bottom: 1.5rem;
}

/* Upload page */
.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-area:hover,
.upload-area.highlight {
  border-color: var(--primary-color);
  background-color: rgba(15, 15, 16, 0.05);
}

.upload-icon {
  font-size: 3rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.upload-text {
  margin-bottom: 0.5rem;
}

.file-preview-card {
  margin-bottom: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 0.75rem;
}

.file-preview-icon {
  font-size: 1.5rem;
}

.image-item {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 150px;  /* Adjust as needed */
  height: 150px; /* Adjust as needed */
  overflow: hidden;
}

.image-item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: cover; /* Prevents image distortion */
}

.image-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  /* box-shadow: var(--box-shadow); */
}

.image-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.image-item:hover img {
  transform: scale(1.05);
}

.image-checkbox {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 10;
  transform: scale(1.2);
}

/* Error pages */
.error-container {
  min-height: calc(100vh - var(--navbar-height));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.error-code {
  font-size: 6rem;
  font-weight: 700;
  color: var(--primary-color);
  opacity: 0.5;
  margin-bottom: 1rem;
}

.error-title {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.error-message {
  color: var(--secondary-color);
  margin-bottom: 2rem;
  text-align: center;
}

/* Terminal page */
#output {
  background-color: var(--primary-color);
  color: #fff;
  padding: 1rem;
  border-radius: var(--border-radius);
  min-height: 300px;
  font-family: "JetBrains Mono", monospace;
  white-space: pre-wrap;
  overflow-x: auto;
}

/* Alerts */
.alert {
  border-radius: var(--border-radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

footer {
  background-color: transparent;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.category-tabs .nav-link.active {
  color: var(--primary-color);
  background-color: transparent;
  border-bottom: 3px solid var(--primary-color);
}

.file-table {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 10px;
  overflow: hidden;
}

.file-table th,
.file-table td {
  vertical-align: middle;
  padding: 0.75rem 1rem;
}

.file-icon-col {
  width: 50px;
}

.file-icon-cell i {
  font-size: 1.5rem;
}

.file-icon-cell {
  text-align: center;
  font-size: 1.25rem;
}

.empty-state {
  text-align: center;
  padding: 3rem;
  background-color: var(--card-bg);
  border-radius: 10px;
  /* box-shadow: 0 0 10px rgba(0, 0, 0, 0.05); */
}

.empty-state-icon {
  font-size: 4rem;
  color: var(--secondary-color);
  opacity: 0.5;
  margin-bottom: 1rem;
}

.upload-area {
  border: 2px dashed #ccc;
  border-radius: 10px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.upload-area:hover,
.upload-area.highlight {
  border-color: var(--primary-color);
  background-color: rgba(74, 107, 255, 0.05);
}

.upload-area.has-file {
  border-color: var(--success-color);
  background-color: rgba(40, 167, 69, 0.05);
}

.upload-icon {
  font-size: 3rem;
  color: #ccc;
  margin-bottom: 1rem;
  transition: color 0.3s ease;
}

.upload-area .upload-icon {
  font-size: 4rem; /* Match size with card title icon */
  color: #ccc;
  margin-bottom: 1.5rem;
  transition: color 0.3s ease;
}

.upload-area .upload-text {
  font-size: 1.25rem; /* Match size with card title */
  margin-bottom: 0.5rem;
}

.upload-area.has-file .upload-icon {
  font-size: 4rem;
  color: var(--success-color);
}

.file-preview-icon {
  font-size: 2rem;
}

.file-preview-icon {
  font-size: 2.5rem;
}

.error-container {
  padding: 3rem;
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  color: var(--primary-color);
  opacity: 0.5;
  margin-bottom: 1rem;
}

.error-title {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.error-message {
  color: var(--secondary-color);
  margin-bottom: 2rem;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-title i {
  font-size: 2rem;
  vertical-align: middle;
  margin-right: 0.5rem;
}

.btn {
  font-family: "JetBrains Mono", monospace;
  font-weight: 500;
}

/* .btn:hover {
  transform: translateY(-2px);
  transition: transform 0.2s ease;
} */

#chooseFileBtn {
  font-size: 1.25rem;
  padding: 0.3rem;
}

#backgroundCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); /* Responsive columns */
  gap: 1rem; /* Adjust the gap between images */
}

.image-item {
  position: relative; /* For potential overlay elements */
  overflow: hidden; /* Ensure image doesn't overflow the container */
  border-radius: 5px;
  /* box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); */
}

.image-item img {
  width: 100%; /* Make image fill the container */
  height: auto;
  display: block; /* Remove extra space below image */
  transition: transform 0.3s ease; /* Add a smooth transition */
}

.image-item:hover img {
  transform: scale(1.05); /* Slight zoom on hover */
}

/* File Listing Buttons (Added styles) */
.file-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-start; /* Or center, space-around, etc. */
}

.file-actions .btn {
  padding: 0.25rem 0.5rem; /* Smaller buttons for mobile */
  font-size: 0.85rem; /* Smaller font size */
}

/* Media queries */
@media (max-width: 768px) {
  /* General adjustments */
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  /* Navbar */
  .navbar-brand {
    font-size: 1.2rem;
  }

  /* Landing Page */
  .welcome-card {
    padding: 2rem;
  }

  .welcome-icon {
    font-size: 3rem;
  }

  .welcome-title {
    font-size: 2rem;
  }

  .welcome-subtitle {
    font-size: 1.2rem;
  }

  .welcome-actions .btn {
    font-size: 1rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem; /* Add spacing between buttons */
  }

  /* Adjustments for two buttons on one row */
  .welcome-actions {
    display: flex;
    flex-direction: column; /* Stack buttons vertically on smaller screens */
    align-items: center; /* Center the buttons horizontally */
  }

  .welcome-actions .btn {
    width: 100%; /* Make buttons fill the width */
    margin-right: 0; /* Remove right margin */
  }

  /* File Listing */
  .category-tabs .nav-link {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
  }

  .file-table th,
  .file-table td {
    padding: 0.5rem;
    font-size: 0.85rem;
  }

  .file-icon-cell i {
    font-size: 1.2rem;
  }

  /* Upload Page */
  .upload-area {
    padding: 1.5rem;
  }

  .upload-icon {
    font-size: 2.5rem;
  }

  .upload-text {
    font-size: 1rem;
  }

  /* Error Pages */
  .error-code {
    font-size: 6rem;
  }

  .error-title {
    font-size: 1.75rem;
  }

  .error-message {
    font-size: 1rem;
  }

  /* Image grid */
  .image-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); /* Smaller images on mobile */
    gap: 0.5rem;
  }
}

/* Smaller screens adjustments */
@media (max-width: 576px) {
  .welcome-title {
    font-size: 1.75rem;
  }

  .welcome-subtitle {
    font-size: 1rem;
  }

  .category-tabs .nav-link {
    font-size: 0.8rem;
  }

  .file-table th,
  .file-table td {
    font-size: 0.75rem;
  }

  /* filelist action buttons */
  .file-actions {
    flex-direction: column; /* Stack buttons vertically on smaller screens */
    align-items: stretch; /* Make buttons fill the width */
  }

  .file-actions .btn {
    width: 100%; /* Make buttons fill the width */
    margin-bottom: 0.5rem; /* Add spacing between buttons */
  }
}

/* Hide the choose file button */
#chooseFileBtn {
  display: none;
}

.btn {
  border-radius: 8px !important; /* Adjust the radius as needed */
}

body {
  font-size: 14px; /* Original font size might be 16px */
}


iframe {
  border-radius: 12px;
  margin-bottom: 2rem;   /* Add some space below */
  display: block;          /* Ensure it's a block-level element */
  margin-left: auto;      /* Center horizontally */
  margin-right: auto;
}


/* Checklist styling */
.checklist {
  list-style-type: none;
  padding-left: 0;
}

.checklist li {
  margin-bottom: 0.5rem;
}

.checklist ul {
  list-style-type: none;
  padding-left: 1.5rem;
  margin-top: 0.5rem;
}

.form-check {
  display: flex;
  align-items: center;
}

.form-check-input {
  margin-right: 0.5rem;
  cursor: pointer;
}

.form-check-label {
  cursor: pointer;
  user-select: none;
}

/* Style for completed tasks */
.form-check-input:checked + .form-check-label {
  text-decoration: line-through;
  color: #6c757d;
}

/* Hover effect for checkboxes */
.form-check:hover .form-check-input {
  border-color: var(--primary-color);
}

/* Animation for checkbox changes */
.form-check-input {
  transition: all 0.2s ease;
}

.form-check-input:checked {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}