@media (min-width: 1024px) {
  .aside-init-open #sidebar {
    width: 320px !important;
  }
  .aside-init-open #titlebar {
    width: calc(100vw - 258px) !important;
  }
}

/* =========================================================
   Root Variables
   --------------------------------------------------------- */
:root {
  /* =========================
     Brand Colors (Education)
     ========================= */
  --color-primary: #2f4f8f; /* Academic navy (authority, structure) */
  --color-secondary: #6f8fc8; /* Calm instructional blue (guidance) */
  --color-tertiary: #6f8fc8; /* Calm instructional blue (guidance) */
  --color-secondary: #22b8cf; /* Educational cyan (clarity, focus) */
  --color-accent: #007595; /* Calm instructional blue (guidance) */

  /* =========================
     Neutral Palette
     ========================= */
  --color-gray-100: #f9fafb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #4b5563;
  --color-gray-600: #374151;
  --color-gray-800: #111827;

  /* =========================
     Background & Text
     ========================= */
  --color-bg-lightest: #ffffff; /* paper white */
  --color-bg-lighter: #f9fafb; /* reading background */
  --color-bg-light: #f3f4f6; /* subtle contrast surfaces */
  --color-bg-hover: #e5e7eb;

  --color-text-dark: #111827;
  --color-text-light: #f9fafb;

  /* =========================
     Scrollbar
     ========================= */
  --scroll-thumb: #9ca3af80;

  /* =========================
     Button & Form Defaults
     ========================= */
  --btn-radius: 0.5rem;
  --btn-padding-y: 0.5rem;
  --btn-padding-x: 1rem;
  --btn-transition: all 0.2s ease;

  /* Feedback */
  --color-danger: #c53030; /* academic red */
  --color-danger-hover: #9b2c2c;

  /* =========================
     Form Fields
     ========================= */
  --form-bg: #f9fafb;
  --form-border: #d1d5db;

  /* =========================
     Header
     ========================= */
  --header-bar-radius: 0.75rem;
  --header-bar-padding: 1rem;
  --header-bar-gap: 1rem;

  --header-bar-shadow-light: 0 4px 6px rgba(0, 0, 0, 0.08);
  --header-bar-shadow-dark: 0 4px 10px rgba(0, 0, 0, 0.5);

  --header-bar-gradient-light: linear-gradient(to right, #e0f2fe, #e0e7ff);

  --header-bar-gradient-dark: linear-gradient(to right, #0f172a, #1e3a8a);

  --header-bar-text-light: #1f2937;
  --header-bar-text-dark: #e5e7eb;

  --header-icon-bg-light: rgba(255, 255, 255, 0.7);
  --header-icon-bg-dark: rgba(30, 41, 59, 0.7);

  --header-icon-color-light: var(--color-secondary);;
  --header-icon-color-dark: var(--color-secondary);;

  /* =========================
     Typography Hierarchy
     ========================= */
  --text-heading: #111827;
  --text-body: #374151;
  --text-label: #6b7280;
}

/* 🌙 =========================
   Dark Mode (Education)
   ========================= */
body.dark-mode {
  --color-bg-lightest: #0f172a; /* deep academic navy */
  --color-bg-lighter: #111827;
  --color-bg-light: #1e293b;
  --color-bg-hover: #334155;

  --color-gray-800: #f8fafc;
  --color-gray-600: #cbd5e1;
  --color-gray-500: #94a3b8;

  --color-text-dark: #f8fafc;
  --color-text-light: #020617;

  --form-bg: #1e293b;
  --form-border: #334155;

  --header-bar-gradient-light: var(--header-bar-gradient-dark);
  --header-bar-shadow-light: var(--header-bar-shadow-dark);
  --header-bar-text-light: var(--header-bar-text-dark);
  --header-icon-bg-light: var(--header-icon-bg-dark);
  --header-icon-color-light: var(--header-icon-color-dark);

  /* Typography */
  --text-heading: #f8fafc;
  --text-body: #cbd5e1;
  --text-label: #94a3b8;
}

.bg-light {
  background-color: var(--color-bg-light);
}

.bg-lighter {
  background-color: var(--color-bg-lighter);
}
.bg-lightest {
  background-color: var(--color-bg-lightest);
}
.bg-primary {
  background-color: var(--color-primary);
}
.bg-secondary {
  background-color: var(--color-secondary);
}

/* body.dark-mode .bg-light{} */

/* =========================================================
   Typography
   --------------------------------------------------------- */
.text-black {
  color: var(--color-gray-800);
}
.text-white {
  color: var(--color-text-light);
}
.text-gray-600 {
  color: var(--color-gray-600);
}
.text-gray-500 {
  color: var(--color-gray-500);
}
.text-primary {
  color: var(--color-primary);
}
.text-secondary {
  color: var(--color-secondary);
}
.text-tertiary {
  color: var(--color-tertiary);
}
.text-heading {
  color: var(--text-heading);
}
.text-body {
  color: var(--text-body);
}
.text-label {
  color: var(--text-label);
}

/* =========================================================
   Global & Reset
   --------------------------------------------------------- */
* {
  box-sizing: border-box;
}
ul {
  list-style: none;
}
li {
  text-decoration: none;
}

.smoothen {
  transition: all 200ms cubic-bezier(0.4, 0, 0.3, 1);
}

/* =========================================================
   Scrollbar (Vertical + Horizontal)
   --------------------------------------------------------- */

/* Vertical scrollbar */
::-webkit-scrollbar {
  width: 0.5em;
  height: 0.5em; /* horizontal scrollbar */
}

/* Scrollbar track (optional but recommended) */
::-webkit-scrollbar-track {
  background: transparent;
}

/* Scrollbar thumb (both directions) */
::-webkit-scrollbar-thumb {
  background-color: var(--scroll-thumb);
  border-radius: 3px;
}

/* Hover state (optional modern touch) */
::-webkit-scrollbar-thumb:hover {
  background-color: var(--scroll-thumb-hover, var(--scroll-thumb));
}

/* =========================================================
   Tables
   --------------------------------------------------------- */
table {
  width: 100%;
  border-collapse: separate !important;
  border-spacing: 0 !important;
  border-radius: 10px !important;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-gray-300);
}

table th {
  background-color: var(--color-bg-lightest);
  color: var(--color-text-dark);
}
table thead tr:last-child th:first-child {
  border-top-left-radius: 10px;
}
table thead tr:last-child th:last-child {
  border-top-right-radius: 10px;
}
table tbody tr:nth-of-type(even) {
  background: var(--color-bg-lightest);
}
table tbody tr:nth-of-type(odd) {
  background: var(--color-bg-lighter);
}
table tbody tr:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-dark);
}
table tbody tr:last-child td:first-child {
  border-bottom-left-radius: 10px;
}
table tbody tr:last-child td:last-child {
  border-bottom-right-radius: 10px;
}
table tr {
  border-top: 1px solid var(--color-gray-500);
}

/* Dark Mode Tables */
body.dark-mode table {
  background-color: var(--color-bg-light);
  border-color: var(--color-bg-hover);
}
body.dark-mode table th {
  background-color: #1f2937;
  color: var(--color-text-dark);
}
body.dark-mode table tbody tr:nth-of-type(even) {
  background: #1f2937;
}
body.dark-mode table tbody tr:hover {
  background: var(--color-bg-hover);
  color: white;
}
body.dark-mode table tr {
  border-top: 1px solid var(--color-bg-hover);
}

/* =========================================================
   Card-style for small screens
   --------------------------------------------------------- */
@media (max-width: 1024px) {
  /* Remove outer table borders */
  table.responsive-card-view {
    border: none !important; /* remove table border */
    border-collapse: separate !important; /* keep rows separate */
    width: 100%;
  }

  table.responsive-card-view tbody {
    border: none !important;
  }

  table.responsive-card-view thead {
    display: none;
  }

  table.responsive-card-view tbody,
  table.responsive-card-view tr,
  table.responsive-card-view td {
    display: block !important;
    width: 100% !important;
  }

  /* Each row becomes a card */
  table.responsive-card-view tr {
    margin-bottom: 1rem;
    border: 1px solid var(--color-gray-300);
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--color-bg-light);
  }

  /* Flex layout for label + content */
  table.responsive-card-view td {
    display: flex !important; /* make td a flex container */
    justify-content: space-between; /* push content to the right */
    align-items: center; /* vertically center label + content */
    position: relative;
    padding-left: 0 !important; /* remove previous 50% padding */
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    text-align: left; /* content aligns left inside flex */
    border-bottom: 1px solid #ddd; /* <-- divider between each td */
  }

  /* Label on the left */
  table.responsive-card-view td::before {
    content: attr(data-label);
    font-weight: 600;
    margin-right: 1rem; /* space between label and content */
    flex-shrink: 0; /* label doesn't shrink */
    min-width: 40%; /* optional: give label some space */
    text-align: left;
  }

  /* Remove divider from last row */
  table.responsive-card-view td:last-child {
    border-bottom: none;
  }

  /* Ensure links/buttons inside td stretch full width */
  table.responsive-card-view td a,
  table.responsive-card-view td button {
    display: block;
    width: 100%;
    text-align: left;
  }

  /* Optional: hover effect */
  table.responsive-card-view tr:hover {
    background: var(--color-bg-hover);
  }
}

table.responsive-card-view tbody {
  display: grid !important;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  table.responsive-card-view tbody {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =========================================================
   Sidebar Active Link
   --------------------------------------------------------- */
#sidebar ul a.active {
  background: var(--color-primary);
  color: white;
}
#sidebar ul a:hover {
  color: var(--color-secondary);
}

/* =========================================================
   Tabs
   --------------------------------------------------------- */
.tab_bar button.active,
.nested_tab_bar button.active {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
}
.tab_bar button:hover,
.nested_tab_bar button:hover {
  color: var(--color-secondary);
}

.tabcontent,
.nested_tabcontent {
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: inherit;
  animation: fadeEffect 1s;
}

@keyframes fadeEffect {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* =========================================================
   Buttons
   --------------------------------------------------------- */
.btn {
  padding: var(--btn-padding-y) var(--btn-padding-x);
  border-radius: var(--btn-radius);
  transition: var(--btn-transition);
  cursor: pointer;
  font: inherit;
}

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

.btn-secondary {
  background-color: var(--color-secondary);
  color: #fff;
}
.btn-secondary:hover {
  background-color: var(--color-accent);
}

.btn-tertiary {
  background-color: var(--color-tertiary);
  color: #fff;
}
.btn-tertiary:hover {
  filter: brightness(1.1);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #fff;
  padding: var(--btn-padding-y) 1.5rem;
}
.btn-danger:hover {
  background-color: var(--color-danger-hover);
}

/* Outlined */
.btn-outlined {
  background-color: var(--color-bg-lighter);
  color: var(--color-gray-500);
  border: 1px solid var(--form-border);
  border-radius: var(--btn-radius);
  transition: var(--btn-transition);
}
.btn-outlined:hover {
  color: var(--color-secondary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-secondary);
}

/* Danger Outlined */
.btn-outlined-danger {
  background-color: var(--color-bg-lightest);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  border-radius: var(--btn-radius);
  transition: var(--btn-transition);
}
.btn-outlined-danger:hover {
  background-color: #fef2f2;
  color: #b91c1c;
  border-color: #b91c1c;
}

/* =========================================================
   Forms
   --------------------------------------------------------- */
.form-field {
  width: 100%;
  background-color: var(--form-bg);
  border: 1px solid var(--form-border);
  border-radius: var(--btn-radius);
  padding: 0.625rem 1rem;
  transition: var(--btn-transition);
}
.form-field:hover,
.form-field:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-secondary);
}

/* Custom File Input */
.file-field {
  width: 100%;
  display: flex;
  align-items: center;
  background-color: var(--form-bg);
  border: 1px solid var(--form-border);
  border-radius: var(--btn-radius);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  transition: var(--btn-transition);
  overflow: hidden;
}
.file-field:hover,
.file-field:focus-within {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-secondary);
  /* color: var(--color-primary); */
}

/* Dark Mode Inputs */
body.dark-mode input,
body.dark-mode textarea,
body.dark-mode select {
  background-color: transparent;
  color: #e5e7eb;
  border-color: #4b5563;
}

body.dark-mode ::-webkit-scrollbar-thumb {
  background-color: #4b5563;
}

/* =========================================================
   Header Bar
   --------------------------------------------------------- */
.header-bar {
  padding: var(--header-bar-padding);
  background: var(--header-bar-gradient-light);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--header-bar-gap);
  border-radius: var(--header-bar-radius);
  box-shadow: var(--header-bar-shadow-light);
  transition: all 0.2s ease-in-out;
  color: var(--header-bar-text-light);
}

@media (min-width: 768px) {
  .header-bar {
    flex-direction: row;
    align-items: center;
  }
}

body.dark-mode .header-bar {
  background: var(--header-bar-gradient-dark);
  box-shadow: var(--header-bar-shadow-dark);
  color: var(--header-bar-text-dark);
}

.header-icon {
  padding: var(--header-bar-padding);
  display: flex;
  gap: 0.75rem;
  border-radius: var(--header-bar-radius);
  background-color: var(--header-icon-bg-light);
  box-shadow: var(--header-bar-shadow-light);
  color: var(--header-icon-color-light);
  font-size: 1.25rem;
  transition: all 0.3s ease-in-out;
  backdrop-filter: blur(8px);
}

body.dark-mode .header-icon {
  background-color: var(--header-icon-bg-dark);
  color: var(--header-icon-color-dark);
  box-shadow: var(--header-bar-shadow-dark);
}