/* --- Base Variables --- */
:root {
  --primary-green: #4CAF50; /* Your main green */
  --dark-green: #388E3C;    /* Darker green for links and borders */
  --light-green-bg: #E8F5E9; /* Light green for backgrounds/accents */
  --hover-green: #66BB6A;   /* A slightly lighter green for hover states */

  --text-color-light: #212529;
  --bg-light: #f8f9fa;
  --border-light: #dee2e6;
  --subtle-bg-light: #f1f1f1; /* For hover effects */

  --text-color-dark: #e9ecef;
  --bg-dark: #2c3034; /* Slightly lighter dark */
  --border-dark: #495057;
  --subtle-bg-dark: #3a3f44; /* For dark hover effects */
  --header-dark-bg: #343a40; /* Darker header for contrast */
}

/* --- Global Styles --- */
html {
  position: relative;
  min-height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-color-light);
  padding-bottom: 80px; /* Ensure space for the footer */
  line-height: 1.6;
  font-size: 1rem; /* Base font size */
}

a {
  color: var(--dark-green);
  text-decoration: none; /* Remove underline by default */
  transition: color 0.2s ease-in-out;
}

a:hover,
a:focus {
  color: var(--hover-green);
  text-decoration: underline; /* Add underline on hover/focus */
}

/* --- Header --- */
.header {
  background-color: var(--primary-green);
  color: #fff;
  padding: 0.5rem 0; /* Added vertical padding */
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: 1.5rem; /* Space below header */
}

.header .navbar {
  padding: 0 15px; /* Ensure padding inside the container */
}

.header .navbar-brand {
  padding: 0;
  font-size: 1.1rem; /* Slightly larger brand text */
  font-weight: 500;
  height: auto; /* Remove fixed height */
  line-height: inherit;
}

.header .navbar-brand i {
  margin-right: 8px; /* Space between icon and text */
}

/* --- Breadcrumbs --- */
.breadcrumb {
  background-color: var(--light-green-bg); /* Light green background */
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  border-radius: 0.25rem; /* Slightly rounded corners */
  font-size: 0.9rem; /* Slightly smaller breadcrumb text */
  border: 1px solid #c8e6c9; /* Subtle border */
}

.breadcrumb .breadcrumb-item a {
  color: var(--dark-green);
  font-weight: 500;
}

.breadcrumb .breadcrumb-item a:hover,
.breadcrumb .breadcrumb-item a:focus {
  color: var(--hover-green);
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--primary-green); /* Use main green for separator */
  padding-right: .7rem;
  padding-left: .7rem;
}

.breadcrumb-item.active {
  color: #6c757d; /* Muted color for the current page */
}

/* --- Main Content & File List Table --- */
.container > .row > .col > h1 {
    font-size: 1.5rem; /* Adjust heading size */
    margin-bottom: 1rem;
    color: var(--primary-green);
    border-bottom: 2px solid var(--light-green-bg);
    padding-bottom: 0.5rem;
}

#list {
  width: 100%;
  border-collapse: collapse; /* Cleaner borders */
  margin-bottom: 2rem;
}

/* Hide the NGINX colgroup */
#list colgroup {
  display: none;
}

/* Table Header */
#list thead th {
  background-color: var(--light-green-bg);
  color: var(--dark-green);
  padding: 0.8rem 1rem;
  text-align: left;
  border-bottom: 2px solid var(--primary-green);
  white-space: nowrap; /* Prevent header text wrapping */
  font-weight: 600;
}

#list thead th a {
  color: inherit; /* Inherit dark green from th */
  text-decoration: none;
}

#list thead th a:hover,
#list thead th a:focus {
  color: var(--hover-green);
  text-decoration: underline;
}

/* Table Body */
#list tbody td {
  padding: 0.8rem 1rem;
  vertical-align: middle;
  border-bottom: 1px solid var(--border-light);
}

#list tbody tr:last-child td {
    border-bottom: none; /* Remove border from last row */
}

#list tbody tr:hover {
  background-color: var(--subtle-bg-light); /* Subtle hover effect */
}

/* File/Directory Links */
#list .link a {
  font-weight: 500; /* Make filenames slightly bolder */
  color: var(--dark-green);
  display: inline-block; /* Better spacing */
  word-break: break-all; /* Keep word break for long names */
  white-space: normal;
}

#list .link a:hover,
#list .link a:focus {
    color: var(--hover-green);
}

/* Specific style for parent directory */
#list .link a[href="../"] {
  font-weight: bold;
  color: var(--primary-green); /* Use main green */
}
#list .link a[href="../"]:hover,
#list .link a[href="../"]:focus {
  color: var(--dark-green);
}


/* Size and Date Columns */
#list .size,
#list .date {
  text-align: right;
  white-space: nowrap; /* Prevent wrapping */
  color: #555; /* Slightly darker muted color */
  font-size: 0.9rem;
}


/* --- Footer --- */
.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  background-color: #e9ecef; /* Light grey footer */
  padding: 1rem 0;
  border-top: 1px solid var(--border-light);
  margin-top: 2rem; /* Push down from content */
}

.footer .container {
    padding-left: 15px;
    padding-right: 15px;
}

.footer small {
  font-size: 0.85rem;
  color: #6c757d;
}


/* --- Dark Mode Styles --- */
@media (prefers-color-scheme: dark) {
  body {
    background-color: var(--bg-dark);
    color: var(--text-color-dark);
  }

  a {
    color: var(--hover-green); /* Use lighter green for links in dark mode */
  }

  a:hover,
  a:focus {
    color: var(--primary-green); /* Use main green for hover in dark mode */
  }

  .header {
    background-color: var(--header-dark-bg);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  }

  .breadcrumb {
    background-color: var(--subtle-bg-dark);
    border-color: var(--border-dark);
  }

  .breadcrumb .breadcrumb-item a {
    color: var(--hover-green);
  }
  .breadcrumb .breadcrumb-item a:hover,
  .breadcrumb .breadcrumb-item a:focus {
    color: var(--primary-green);
  }
  .breadcrumb-item + .breadcrumb-item::before {
    color: var(--primary-green);
  }
  .breadcrumb-item.active {
    color: #adb5bd; /* Lighter muted color */
  }

  .container > .row > .col > h1 {
      color: var(--primary-green);
      border-bottom-color: var(--subtle-bg-dark);
  }

  #list thead th {
    background-color: var(--subtle-bg-dark);
    color: var(--text-color-dark);
    border-bottom-color: var(--primary-green);
  }

  #list tbody td {
    border-bottom-color: var(--border-dark);
  }

  #list tbody tr:hover {
    background-color: var(--header-dark-bg); /* Darker hover */
  }

  #list .link a {
    color: var(--hover-green);
  }
  #list .link a:hover,
  #list .link a:focus {
    color: var(--primary-green);
  }

  #list .link a[href="../"] {
      color: var(--primary-green);
  }
  #list .link a[href="../"]:hover,
  #list .link a[href="../"]:focus {
      color: var(--hover-green);
  }

  #list .size,
  #list .date {
    color: #adb5bd; /* Lighter muted color */
  }

  .footer {
    background-color: var(--header-dark-bg); /* Darker footer */
    border-top-color: var(--border-dark);
  }

  .footer small {
    color: #adb5bd;
  }
}