/* ===============================
   GLOBAL BACKGROUND
================================ */

body {
  background: linear-gradient(
    180deg,
    #6F4E37 0px,
    #EFE6DC 320px
  );
  color: #2B1F1A;
}

/* ===============================
   CONTAINER UNIFICATION
================================ */

.container,
.container-fluid {
  background-color: transparent !important;
  padding: 12px 12px;
  border-radius: 12px;
  margin-bottom: 12px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.04);
}

/* ===============================
   NAVBAR (Mocha Mousse)
================================ */

.mm-navbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: #2B1F1A;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.mm-brand {
  color: #F3EDE7 !important;
  font-size: 1.25rem;
  letter-spacing: 0.4px;
}

/* Links */
.navbar-nav .nav-link {
  color: #E6DDD4 !important;
  position: relative;
}

.navbar-nav .nav-link:hover {
  color: #C89B3C !important;
}

/* Active link */
.navbar-nav .nav-link.active {
  color: #F3EDE7 !important;
}

.navbar-nav .nav-link,
.navbar-nav .nav-link:focus,
.navbar-nav .nav-link:active {
  text-decoration: none !important;
}

/*
.navbar-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: #C89B3C;
}
*/
/* ===============================
   DROPDOWN
================================ */

.mm-dropdown {
  background-color: #241915;
  border: 1px solid rgba(255,255,255,0.08);
}

.mm-dropdown .dropdown-item {
  color: #E6DDD4;
}

.mm-dropdown .dropdown-item:hover {
  background-color: #6F4E37;
  color: #F3EDE7;
}

.mm-dropdown .dropdown-divider {
  border-color: rgba(255,255,255,0.1);
}

/* ===============================
   BOOTSTRAP TEXT BG NORMALIZATION
================================ */

.text-bg-secondary {
  --bs-bg-opacity: 0.75;
  background-color: rgba(139, 122, 107, var(--bs-bg-opacity)) !important;
  color: #2B1F1A !important;
  border-radius: 8px;
  padding: 12px 16px;
}

/* ===============================
   NAVBAR CONTRAST FIX
================================ */

.mm-navbar,
.navbar {
  background-color: #2B1F1A !important; /* espresso */
}

.navbar-brand,
.navbar-nav .nav-link {
  color: #F3EDE7 !important;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: #C89B3C !important;
}

/* Dropdown */
.dropdown-menu {
  background-color: #241915 !important;
}

.dropdown-item {
  color: #E6DDD4 !important;
}

.dropdown-item:hover {
  background-color: #6F4E37 !important;
  color: #F3EDE7 !important;
}

/* ===============================
   TABLE CONTRAST FIX
================================ */

.table {
  --bs-table-bg: #F3EDE7;
  --bs-table-color: #2B1F1A;
  --bs-table-border-color: rgba(0,0,0,0.15);
}

.table-striped > tbody > tr:nth-of-type(odd) {
  --bs-table-accent-bg: #E6DDD4;
}

.table-hover > tbody > tr:hover {
  --bs-table-accent-bg: #D9CFC4;
}

/* ===============================
   TABLE HEAD (THEAD) UNIFICATION
================================ */

.table thead th {
  background-color: #6F4E37;   /* mocha brown */
  color: #F3EDE7;              /* cream */
  font-weight: 600;
  border-bottom: 2px solid #5A3F2B;
  vertical-align: middle;
}

.table thead th a {
  color: #F3EDE7;
  text-decoration: underline;
}

.table thead th a:hover {
  color: #C89B3C; /* caramel */
}

/* ===============================
   ALERTS
================================ */

.alert {
  border-radius: 0.5rem;
  border: none;
}

.alert-primary {
  background-color: #6F4E37;
  color: #F3EDE7;
}

.alert-secondary {
  background-color: #8B7A6B;
  color: #F3EDE7;
}

.alert-success {
  background-color: #7A7F3A;
  color: #F3EDE7;
}

.alert-warning {
  background-color: #C89B3C;
  color: #2B1F1A;
}

.alert-danger {
  background-color: #8B3A2E;
  color: #F3EDE7;
}

/* ===============================
   CARDS
================================ */

.card {
  background-color: #F3EDE7;
  border: none;
  border-radius: 0.75rem;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.card-header {
  background-color: #6F4E37;
  color: #F3EDE7;
  font-weight: 600;
  border-bottom: none;
}

.card-footer {
  background-color: #E6DDD4;
  border-top: none;
}

/* ===============================
   LIST GROUP
================================ */

.list-group-item {
  background-color: #F3EDE7;
  color: #2B1F1A;
  border-color: #D6C6B8;
}

.list-group-item:hover {
  background-color: #E6DDD4;
}

.list-group-item.active {
  background-color: #6F4E37;
  border-color: #6F4E37;
  color: #F3EDE7;
}

/* ===============================
   MATHJAX STYLING
================================ */

/* Блочные формулы */
.MathJax_Display {
  background-color: #F3EDE7;
  color: #2B1F1A;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  margin: 1rem 0;
}

/* Встроенные формулы */
mjx-container {
  color: #2B1F1A;
}

/* Формулы внутри alert / card */
.alert mjx-container,
.card mjx-container {
  color: inherit;
}

/* ==================================================
   HARD FIX: MAIN NAVBAR (ALWAYS DARK)
================================================== */

.navbar {
  background-color: #2B1F1A !important; /* espresso */
}

/* Убиваем влияние navbar-light */
.navbar-light .navbar-brand,
.navbar-light .navbar-nav .nav-link {
  color: #F3EDE7 !important;
}

/* И navbar-dark на всякий случай */
.navbar-dark .navbar-brand,
.navbar-dark .navbar-nav .nav-link {
  color: #F3EDE7 !important;
}

/* Hover / active */
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: #C89B3C !important;
}

/* ACTIVE пункт (ГЛАВНАЯ и т.п.) */
.navbar-nav .nav-link.active,
.navbar-nav .show > .nav-link {
  color: #C89B3C !important;
  font-weight: 600;
  border-bottom: 2px solid #C89B3C;
}

/* ==================================================
   NAV / NAV-TABS / NAV-FILL
================================================== */

.nav {
  --bs-nav-link-color: #6F4E37;
  --bs-nav-link-hover-color: #C89B3C;
}

/* Tabs container */
.nav-tabs {
  border-bottom: 2px solid #6F4E37;
}

/* Tab item */
.nav-tabs .nav-link {
  background-color: #E6DDD4;
  color: #2B1F1A;
  border: 1px solid #D6C6B8;
  border-bottom: none;
  border-radius: 0.5rem 0.5rem 0 0;
  margin: 0 0.25rem;
}

/* Hover */
.nav-tabs .nav-link:hover {
  background-color: #D9CFC4;
  color: #2B1F1A;
}

/* ACTIVE TAB */
.nav-tabs .nav-link.active {
  background-color: #6F4E37;
  color: #F3EDE7;
  border-color: #6F4E37;
  font-weight: 600;
}

/* Disabled */
.nav-tabs .nav-link.disabled {
  color: #8B7A6B;
}

/* ==================================================
   BUTTONS
================================================== */

.btn {
  border-radius: 0.5rem;
  font-weight: 500;
}

/* Primary */
.btn-primary {
  background-color: #6F4E37;
  border-color: #6F4E37;
  color: #F3EDE7;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: #5A3F2B;
  border-color: #5A3F2B;
}

/* Outline */
.btn-outline-primary {
  color: #6F4E37;
  border-color: #6F4E37;
}

.btn-outline-primary:hover {
  background-color: #6F4E37;
  color: #F3EDE7;
}

/* Secondary */
.btn-secondary {
  background-color: #8B7A6B;
  border-color: #8B7A6B;
}

.btn-secondary:hover {
  background-color: #736356;
}

/* Warning */
.btn-warning {
  background-color: #C89B3C;
  border-color: #C89B3C;
  color: #2B1F1A;
}

/* Danger */
.btn-danger {
  background-color: #8B3A2E;
  border-color: #8B3A2E;
}

/* ==================================================
   FORMS
================================================== */

.form-control,
.form-select {
  background-color: #F3EDE7;
  color: #2B1F1A;
  border: 1px solid #D6C6B8;
  border-radius: 0.5rem;
}

.form-control:focus,
.form-select:focus {
  background-color: #F3EDE7;
  border-color: #6F4E37;
  box-shadow: 0 0 0 0.2rem rgba(111,78,55,0.25);
}

/* Labels */
.form-label {
  color: #2B1F1A;
  font-weight: 500;
}

/* Checkboxes / radio */
.form-check-input:checked {
  background-color: #6F4E37;
  border-color: #6F4E37;
}

/* ==================================================
   BREADCRUMBS
================================================== */

.breadcrumb {
  background-color: #E6DDD4;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
}

.breadcrumb-item a {
  color: #6F4E37;
  text-decoration: none;
}

.breadcrumb-item a:hover {
  color: #C89B3C;
}

.breadcrumb-item.active {
  color: #2B1F1A;
  font-weight: 600;
}

/* ==================================================
   PAGINATION
================================================== */

.page-link {
  color: #6F4E37;
  background-color: #F3EDE7;
  border-color: #D6C6B8;
}

.page-link:hover {
  background-color: #E6DDD4;
  color: #2B1F1A;
}

.page-item.active .page-link {
  background-color: #6F4E37;
  border-color: #6F4E37;
  color: #F3EDE7;
}

.page-item.disabled .page-link {
  color: #8B7A6B;
  background-color: #E6DDD4;
}

img[src*="/img/"] {
  background-color: #F3EDE7;
  padding: 0.5rem;
  border-radius: 0.5rem;
}

/* ===============================
   RASTER GRAPHS TONING
================================ */

.themed-plot {
  background-color: #F3EDE7;
  padding: 0.5rem;
  border-radius: 0.5rem;
  filter:
    sepia(20%)
    saturate(85%)
    contrast(95%);
}