body {
    /*font-family: Arial,Verdana,Helvetica,sans-serif;*/
    /*font-family: --bs-font-sans-serif;*/
}
#wrapper,header {
    max-width: 1150px;
}
#wrapper,header {
    max-width: 1150px;
    margin: 0 auto;
}

#wrapper li {
    margin-top: 5px;
}

.lang_flag {
    width: 28px;
    height: 21px;
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    transition: all 0.2s ease;
    border: 1px solid rgba(0,0,0,0.1);
    display: inline-block;
    object-fit: cover;
    vertical-align: middle;
}

.lang_flag:hover {
    transform: scale(1.08);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Enhanced dropdown menu styling */
.dropdown-menu {
    border: 1px solid rgba(var(--bs-primary-rgb), 0.1);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    padding: 6px;
    margin-top: 4px;
    min-width: 160px;
    transform-origin: top center;
}

/* ===== DARK THEME ENHANCEMENTS ===== */

/* Dark theme color variables */
[data-bs-theme="dark"] {
    --dark-primary: #a855f7;
    --dark-primary-light: #c084fc;
    --dark-primary-dark: #9333ea;
    --dark-secondary: #06b6d4;
    --dark-accent: #f59e0b;
    --dark-bg-primary: #0f0f23;
    --dark-bg-secondary: #1a1a2e;
    --dark-bg-tertiary: #16213e;
    --dark-text-primary: #f8fafc;
    --dark-text-secondary: #cbd5e1;
    --dark-text-muted: #94a3b8;
}

/* Dark theme body and background */
[data-bs-theme="dark"] {
    background: linear-gradient(135deg, var(--dark-bg-primary) 0%, var(--dark-bg-secondary) 50%, var(--dark-bg-tertiary) 100%);
    min-height: 100vh;
}

[data-bs-theme="dark"] body {
    background: linear-gradient(135deg, var(--dark-bg-primary) 0%, var(--dark-bg-secondary) 50%, var(--dark-bg-tertiary) 100%);
    color: var(--dark-text-primary);
}

/* Dark theme dropdown with glass effect */
[data-bs-theme="dark"] .dropdown-menu {
    background: rgba(26, 26, 46, 0.92);
    border: 1px solid rgba(168, 85, 247, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(12px);
}

[data-bs-theme="dark"] .dropdown-item {
    color: var(--dark-text-secondary);
    border: 1px solid transparent;
}

[data-bs-theme="dark"] .dropdown-item:hover,
[data-bs-theme="dark"] .dropdown-item:focus {
    background: rgba(168, 85, 247, 0.1);
    border-color: rgba(168, 85, 247, 0.2);
    color: var(--dark-primary-light);
    box-shadow: 0 2px 8px rgba(168, 85, 247, 0.15);
}

[data-bs-theme="dark"] .dropdown-item.active {
    background: rgba(168, 85, 247, 0.15);
    border-color: rgba(168, 85, 247, 0.3);
    color: var(--dark-primary-light);
}

/* Dark theme header buttons */
[data-bs-theme="dark"] .btn-bd-primary {
    background: rgba(22, 33, 62, 0.6);
    border-color: rgba(168, 85, 247, 0.2);
    color: var(--dark-text-secondary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-bs-theme="dark"] .btn-bd-primary:hover {
    background: rgba(168, 85, 247, 0.1);
    border-color: rgba(168, 85, 247, 0.3);
    color: var(--dark-primary-light);
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.2);
    transform: translateY(-1px);
}

[data-bs-theme="dark"] .btn-bd-primary:focus {
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.2);
    border-color: rgba(168, 85, 247, 0.4);
}

[data-bs-theme="dark"] .btn-bd-primary:active {
    background: rgba(168, 85, 247, 0.15);
    transform: translateY(0);
}

/* Dark theme logo styling */
[data-bs-theme="dark"] .w-logo .w-logo-name {
    color: #ffffff !important;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

[data-bs-theme="dark"] .w-logo .w-logo-des {
    color: #9ca3af;
}

/* Dark theme container and cards */
[data-bs-theme="dark"] .container {
    background: rgba(26, 26, 46, 0.3);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(168, 85, 247, 0.1);
}

[data-bs-theme="dark"] #form_tool,
[data-bs-theme="dark"] .form_tool {
    background: rgba(22, 33, 62, 0.6) !important;
    border: 2px dashed rgba(168, 85, 247, 0.3) !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
}

/* Dark theme borders and dividers */
[data-bs-theme="dark"] .border-bottom {
    border-color: rgba(255, 255, 255, 0.08) !important;
}

[data-bs-theme="dark"] .menu_right_title {
    background: rgba(30, 34, 42, 0.8) !important;
    border-color: rgba(79, 172, 254, 0.2) !important;
    color: #e1e5e9;
}

[data-bs-theme="dark"] .menu_right_ul {
    border-color: rgba(79, 172, 254, 0.2) !important;
    background: rgba(30, 34, 42, 0.4);
}

/* Dark theme form controls */
[data-bs-theme="dark"] .form-control {
    background: rgba(30, 34, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #e1e5e9;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

[data-bs-theme="dark"] .form-control:focus {
    background: rgba(30, 34, 42, 0.9);
    border-color: rgba(79, 172, 254, 0.4);
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.1);
    color: #ffffff;
}

[data-bs-theme="dark"] .form-control:disabled,
[data-bs-theme="dark"] .form-control[readonly] {
    background: rgba(20, 24, 32, 0.6);
    color: #e1e5e9;
    border-color: rgba(255, 255, 255, 0.1);
}

/* Dark theme buttons */
[data-bs-theme="dark"] .btn-success {
    background: var(--dark-primary);
    border: 1px solid var(--dark-primary);
    color: var(--dark-text-primary);
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.3);
}

[data-bs-theme="dark"] .btn-success:hover {
    background: var(--dark-primary-dark);
    border-color: var(--dark-primary-dark);
    box-shadow: 0 6px 20px rgba(168, 85, 247, 0.4);
    transform: translateY(-2px);
}

[data-bs-theme="dark"] .btn-outline-primary-emphasis {
    color: var(--dark-primary-light);
    border-color: rgba(168, 85, 247, 0.3);
}

[data-bs-theme="dark"] .btn-outline-primary-emphasis:hover {
    background: rgba(168, 85, 247, 0.1);
    border-color: rgba(168, 85, 247, 0.5);
    color: var(--dark-primary-light);
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.15);
}

/* Ensure white content on hover for outline-success */
.btn-outline-success:hover {
    color: #ffffff !important;
}
.btn-outline-success:hover img {
    color: #ffffff !important;
}

.btn-outline-success:hover .filter-svg {
    filter: brightness(0) invert(1) !important;
}

.btn-outline-success:hover * {
    color: #ffffff !important;
}

/* Dark theme outline-success buttons */
[data-bs-theme="dark"] .btn-outline-success {
    --bs-btn-color: var(--dark-primary-light) !important;
    --bs-btn-border-color: var(--dark-primary-light) !important;
    --bs-btn-hover-bg: var(--dark-primary) !important;
    --bs-btn-hover-border-color: var(--dark-primary) !important;
    --bs-btn-hover-color: #ffffff !important;
    --bs-btn-active-bg: var(--dark-primary-dark) !important;
    --bs-btn-active-border-color: var(--dark-primary-dark) !important;
    --bs-btn-active-color: #ffffff !important;
}

[data-bs-theme="dark"] .btn-outline-success:hover {
    color: #ffffff !important;
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.3);
}

[data-bs-theme="dark"] .btn-outline-success:hover .filter-svg {
    filter: brightness(0) invert(1) !important;
}

[data-bs-theme="dark"] .btn-outline-success:hover * {
    color: #ffffff !important;
}

[data-bs-theme="dark"] .btn-check:checked + .btn-outline-success {
    background-color: var(--dark-primary) !important;
    border-color: var(--dark-primary) !important;
    color: #ffffff !important;
}

[data-bs-theme="dark"] .btn-check:focus + .btn-outline-success {
    box-shadow: 0 0 0 0.25rem rgba(168, 85, 247, 0.25) !important;
}

/* Dark theme tables */
[data-bs-theme="dark"] .table {
    color: #e1e5e9;
}

[data-bs-theme="dark"] .table th {
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(30, 34, 42, 0.6);
    color: #ffffff;
}

[data-bs-theme="dark"] .table td {
    border-color: rgba(255, 255, 255, 0.05);
}

[data-bs-theme="dark"] .table-striped tbody tr:nth-of-type(odd) {
    background: rgba(255, 255, 255, 0.02);
}

/* Dark theme links and text */
[data-bs-theme="dark"] a {
    color: var(--dark-primary-light);
}

[data-bs-theme="dark"] a:hover {
    color: var(--dark-primary);
    text-shadow: 0 0 8px rgba(168, 85, 247, 0.4);
}

[data-bs-theme="dark"] .text-body-secondary {
    color: var(--dark-text-muted) !important;
}

/* Dark theme shadows and highlights */
[data-bs-theme="dark"] .shadow {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3) !important;
}

[data-bs-theme="dark"] .lang_flag {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .lang_flag:hover {
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.3);
    border-color: rgba(168, 85, 247, 0.4);
}

/* Dark theme special effects */
[data-bs-theme="dark"] .container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.4), transparent);
    z-index: 1;
}

[data-bs-theme="dark"] .navbar-search .form-control {
    background: rgba(22, 33, 62, 0.9);
    border: 1px solid rgba(168, 85, 247, 0.2);
    color: var(--dark-text-secondary);
}

[data-bs-theme="dark"] .navbar-search .form-control:focus {
    border-color: rgba(168, 85, 247, 0.5);
    box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.1);
    background: rgba(22, 33, 62, 1);
}

/* Dark theme breadcrumbs */
[data-bs-theme="dark"] .nav-breadcrumb {
    border-color: rgba(255, 255, 255, 0.08);
}

[data-bs-theme="dark"] .breadcrumb-item a {
    color: #4facfe;
}

[data-bs-theme="dark"] .breadcrumb-item.active {
    color: #e1e5e9;
}

/* Dark theme footer */
[data-bs-theme="dark"] footer {
    background: rgba(20, 24, 32, 0.6);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

[data-bs-theme="dark"] footer .nav-link {
    color: #9ca3af;
    transition: all 0.2s ease;
}

[data-bs-theme="dark"] footer .nav-link:hover {
    color: #4facfe;
    text-shadow: 0 0 8px rgba(79, 172, 254, 0.3);
}

/* Dark theme mathematical elements */
[data-bs-theme="dark"] .math,
[data-bs-theme="dark"] .math-sm {
    color: #e1e5e9;
}

[data-bs-theme="dark"] #Wradical,
[data-bs-theme="dark"] #Wradical2 {
    color: #9ca3af;
}

[data-bs-theme="dark"] #Wnum,
[data-bs-theme="dark"] #Wnum2 {
    border-color: #9ca3af;
}

[data-bs-theme="dark"] .fraction span.fdn {
    border-color: #e1e5e9;
}

/* Dark theme scrollbar */
[data-bs-theme="dark"] ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

[data-bs-theme="dark"] ::-webkit-scrollbar-track {
    background: rgba(22, 33, 62, 0.3);
    border-radius: 4px;
}

[data-bs-theme="dark"] ::-webkit-scrollbar-thumb {
    background: rgba(168, 85, 247, 0.4);
    border-radius: 4px;
}

[data-bs-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: rgba(168, 85, 247, 0.6);
}

/* Dropdown items styling */
.dropdown-item {
    border-radius: 6px;
    margin: 2px 0;
    padding: 8px 12px;
    font-size: 0.85rem;
    transition: all 0.15s ease;
    border: 1px solid transparent;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background: rgba(var(--bs-primary-rgb), 0.08);
    border-color: rgba(var(--bs-primary-rgb), 0.15);
    color: var(--bs-primary-text-emphasis);
    transform: translateX(2px);
}

.dropdown-item:active {
    background: rgba(var(--bs-primary-rgb), 0.12);
    transform: translateX(1px);
}

.dropdown-item.active {
    background: rgba(var(--bs-primary-rgb), 0.1);
    border-color: rgba(var(--bs-primary-rgb), 0.2);
    color: var(--bs-primary-text-emphasis);
    font-weight: 500;
}

/* Language dropdown specific styling */
.dropdown-item.link_none {
    text-decoration: none;
}

.dropdown-item .lang_flag {
    margin-right: 10px;
    vertical-align: middle;
    border-radius: 3px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.15s ease;
}

.dropdown-item:hover .lang_flag {
    transform: scale(1.05);
}

/* Theme dropdown icons */
.dropdown-item .fsvg {
    margin-right: 10px;
    opacity: 0.8;
    transition: opacity 0.15s ease;
}

.dropdown-item:hover .fsvg {
    opacity: 1;
}

.dropdown-item.active .fsvg {
    opacity: 1;
    filter: brightness(0) saturate(100%) invert(29%) sepia(91%) saturate(3390%) hue-rotate(211deg) brightness(101%) contrast(98%);
}

/* Dropdown dividers */
.dropdown-divider {
    margin: 6px 0;
    border-color: rgba(var(--bs-primary-rgb), 0.1);
}

/* Check icon for active items */
.dropdown-item .bi {
    color: var(--bs-success);
    opacity: 0;
    transition: opacity 0.15s ease;
}

.dropdown-item.active .bi,
.dropdown-item[aria-pressed="true"] .bi {
    opacity: 1;
}

/* Language button in header */
.btn-bd-primary .lang_flag {
    margin-right: 8px;
    vertical-align: middle;
}

/* Header button styling - subtle and compact */
.btn-bd-primary {
    border-radius: 6px;
    padding: 4px 8px;
    border: 1px solid rgba(var(--bs-primary-rgb), 0.15);
    background: rgba(var(--bs-primary-rgb), 0.03);
    font-size: 0.85rem;
    font-weight: 400;
    transition: all 0.15s ease;
    min-height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
}

.btn-bd-primary:hover {
    background: rgba(var(--bs-primary-rgb), 0.08);
    border-color: rgba(var(--bs-primary-rgb), 0.25);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.btn-bd-primary:focus {
    box-shadow: 0 0 0 2px rgba(var(--bs-primary-rgb), 0.1);
    outline: none;
}

.btn-bd-primary:active {
    background: rgba(var(--bs-primary-rgb), 0.1);
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.05);
}

/* Header navigation spacing - more compact */
nav.d-inline-flex {
    gap: 6px;
}

/* Icon spacing and alignment within buttons - smaller */
.btn-bd-primary .fsvg {
    margin-bottom: 0 !important;
    vertical-align: middle;
    width: 16px !important;
    height: 16px !important;
}

.btn-bd-primary .lang_flag {
    vertical-align: middle;
    flex-shrink: 0;
    width: 20px !important;
    height: 15px !important;
}

/* Dropdown toggle arrow spacing - more compact */
.btn-bd-primary.dropdown-toggle::after {
    margin-left: 6px;
    vertical-align: middle;
}

/* Footer language links */
footer .lang_flag {
    margin-right: 4px;
    vertical-align: middle;
}

footer .nav li a {
    display: flex;
    align-items: center;
    transition: color 0.2s ease;
}

footer .nav li a:hover {
    color: var(--bs-primary-text-emphasis) !important;
    text-decoration: none;
}

/* Responsive styles for mobile - more compact */
@media (max-width: 767px) {
    .lang_flag {
        width: 18px;
        height: 14px;
    }
    
    .btn-bd-primary .lang_flag {
        margin-right: 3px;
        width: 18px !important;
        height: 14px !important;
    }
    
    .dropdown-item .lang_flag {
        margin-right: 6px;
    }
    
    .btn-bd-primary {
        padding: 3px 6px;
        font-size: 0.75rem;
        min-height: 26px;
    }
    
    .btn-bd-primary .fsvg {
        width: 14px !important;
        height: 14px !important;
        margin-right: 4px !important;
    }
    
    /* Compact header navigation on mobile */
    nav.d-inline-flex {
        gap: 4px;
    }
    
    /* Keep button text visible but smaller on mobile */
    .btn-bd-primary .btn-text {
        font-size: 0.75rem;
    }
}

/* Extra small screens - very compact */
@media (max-width: 576px) {
    .btn-bd-primary {
        padding: 3px 5px;
        min-height: 28px;
        font-size: 0.7rem;
    }
    
    .btn-bd-primary .fsvg {
        width: 12px !important;
        height: 12px !important;
        margin-right: 3px !important;
    }
    
    .btn-bd-primary .btn-text {
        font-size: 0.7rem;
    }
    
    .btn-bd-primary .lang_flag {
        width: 16px !important;
        height: 12px !important;
        margin-right: 3px !important;
    }
    
    nav.d-inline-flex {
        gap: 3px;
    }
    
    /* Mobile dropdown adjustments */
    .dropdown-menu {
        min-width: 140px;
        padding: 4px;
        margin-top: 2px;
    }
    
    .dropdown-item {
        padding: 6px 8px;
        font-size: 0.8rem;
    }
    
    .dropdown-item .lang_flag {
        margin-right: 6px;
    }
    
    .dropdown-item .fsvg {
        margin-right: 6px;
    }
}

a {
    text-decoration: none;
    color: var(--bs-primary-text-emphasis);
}

a:link {
    text-decoration: none;
    /*color: var(--bs-primary-text-emphasis) !important;*/
    color: var(--bs-primary-text-emphasis);
}

a:visited {
    text-decoration: none;
    color: var(--bs-primary-text-emphasis);
}

a:hover {
    text-decoration: underline;
}

a:active {
    text-decoration: underline
}
.a_link {
    text-decoration: none;
    color: var(--bs-primary-text-emphasis) !important;
}
.a_link:hover {
    text-decoration: none;
    color: var(--bs-primary-text-emphasis) !important;
}
.link_none:hover {
    text-decoration: none;
}

.e-mail:before {
    content: attr(data-website) "\0040" attr(data-user);
    unicode-bidi: bidi-override;
    direction: rtl;
}

.w-60 {
    width: 60%!important;
}

.btn-xs, .btn-group-xs > .btn {
    --bs-btn-padding-y: 0.2rem;
    --bs-btn-padding-x: 0.4rem;
    --bs-btn-font-size: 0.700rem;
    --bs-btn-border-radius: var(--bs-border-radius-sm);
}

.btnShare:hover {
    background: var(--bs-secondary-bg-subtle) !important;;
}

#form_tool, .form_tool {
    padding: 17px;
    background: var(--bs-light-border-subtle) !important;
    /*background: var(--bs-secondary-bg-subtle) !important;*/
    border-radius: 7px;
    /*border: 2px dashed var(--bs-secondary-text-emphasis)!important;;*/
    border: 2px dashed var(--bs-dark-bg-subtle)!important;;
    max-width: 900px;
}
.ft-500 {
    max-width: 500px!important;
}
/* ======================================
   HEADING STYLES (h1-h6)
   ====================================== */
h1, h2, h3, h4, h5, h6 {
    color: var(--bs-primary-text-emphasis) !important;
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

/* Responsive heading sizes for mobile */
@media (max-width: 767px) {
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.375rem;
    }
    
    h4 {
        font-size: 1.125rem;
    }
    
    h5 {
        font-size: 1rem;
    }
    
    h6 {
        font-size: 0.9375rem;
    }
}

/* Dark theme headings - giữ nguyên màu */
[data-bs-theme="dark"] h1,
[data-bs-theme="dark"] h2,
[data-bs-theme="dark"] h3,
[data-bs-theme="dark"] h4,
[data-bs-theme="dark"] h5,
[data-bs-theme="dark"] h6 {
    color: var(--dark-text-primary) !important;
}
.form-check-input:checked {
    background-color: var(--bs-primary-text-emphasis) !important;
    border-color: var(--bs-primary-text-emphasis) !important;
}

.calc_type1 input[type=text], .calc_type1 select {
    width: 150px;
    display: inline-block;
}

@media (max-width: 1199px) {
    .calc_type1 input[type=text], .calc_type1 select {
        /*display: block;*/
        width: 120px;
    }
}
.badge {
    white-space: normal!important;
}
.btn-success {
    --bs-btn-bg: #052c65 !important;
    --bs-btn-border-color: #052c65 !important;
    --bs-btn-color: #ffffff !important;
    --bs-btn-hover-bg: #041f4a !important;
    --bs-btn-hover-border-color: #041f4a !important;
    --bs-btn-hover-color: #ffffff !important;
    --bs-btn-active-bg: #041f4a !important;
    --bs-btn-active-border-color: #041f4a !important;
    --bs-btn-active-color: #ffffff !important;
}

.btn-outline-success {
    --bs-btn-color: #052c65 !important;
    --bs-btn-border-color: #052c65 !important;
    --bs-btn-hover-bg: #052c65 !important;
    --bs-btn-hover-border-color: #052c65 !important;
    --bs-btn-hover-color: #ffffff !important;
    --bs-btn-active-bg: #052c65 !important;
    --bs-btn-active-border-color: #052c65 !important;
    --bs-btn-active-color: #ffffff !important;
}

/* Icon color change on hover for outline-success */
.btn-outline-success:hover .filter-svg {
    filter: brightness(0) invert(1) !important;
}

/* Style for checked state with btn-check */
.btn-check:checked + .btn-outline-success {
    background-color: #052c65 !important;
    border-color: #052c65 !important;
    color: #ffffff !important;
}

.btn-check:focus + .btn-outline-success {
    box-shadow: 0 0 0 0.25rem rgba(5, 44, 101, 0.25) !important;
}

/* Alert Success - Overridden by neutral alerts section below */

/* Progress bar - màu chủ đạo #052c65 (ghi đè Bootstrap) */
.progress-bar,
.progress-bar.bg-success {
    background-color: #052c65 !important;
}

.progress-bar-striped,
.progress-bar.bg-success.progress-bar-striped {
    background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, 0.15) 50%, rgba(255, 255, 255, 0.15) 75%, transparent 75%, transparent) !important;
    background-size: 1rem 1rem !important;
}
.fsvg {
    margin-bottom: 0.18rem!important;
}
/* Icon filters for light theme */
.filter-svg{
    filter: brightness(0) saturate(100%) invert(14%) sepia(67%) saturate(2105%) hue-rotate(199deg) brightness(92%) contrast(100%);
}
.filter-white{
    filter: brightness(0) saturate(100%) invert(100%) sepia(100%) saturate(0%) hue-rotate(288deg) brightness(102%) contrast(102%);
}
.filter-primary{
    filter: brightness(0) saturate(100%) invert(29%) sepia(91%) saturate(3390%) hue-rotate(211deg) brightness(101%) contrast(98%);
}
.filter-info{
    filter: brightness(0) saturate(100%) invert(19%) sepia(95%) saturate(942%) hue-rotate(156deg) brightness(96%) contrast(96%);
}
.filter-danger{
    filter: brightness(0) saturate(100%) invert(34%) sepia(21%) saturate(5454%) hue-rotate(329deg) brightness(87%) contrast(99%);
}

/* Dark theme icon filters */
[data-bs-theme="dark"] .filter-svg {
    filter: brightness(0) saturate(100%) invert(85%) sepia(6%) saturate(542%) hue-rotate(195deg) brightness(95%) contrast(85%);
    transition: filter 0.2s ease;
}

[data-bs-theme="dark"] .btn-bd-primary .filter-svg {
    filter: brightness(0) saturate(100%) invert(85%) sepia(6%) saturate(542%) hue-rotate(195deg) brightness(95%) contrast(85%);
}

[data-bs-theme="dark"] .btn-bd-primary:hover .filter-svg {
    filter: brightness(0) saturate(100%) invert(78%) sepia(89%) saturate(4464%) hue-rotate(257deg) brightness(106%) contrast(97%);
}

[data-bs-theme="dark"] .dropdown-item .filter-svg {
    filter: brightness(0) saturate(100%) invert(85%) sepia(6%) saturate(542%) hue-rotate(195deg) brightness(95%) contrast(85%);
    transition: filter 0.15s ease;
}

[data-bs-theme="dark"] .dropdown-item:hover .filter-svg,
[data-bs-theme="dark"] .dropdown-item.active .filter-svg {
    filter: brightness(0) saturate(100%) invert(78%) sepia(89%) saturate(4464%) hue-rotate(257deg) brightness(106%) contrast(97%);
}

/* Dark theme filter classes */
[data-bs-theme="dark"] .filter-primary {
    filter: brightness(0) saturate(100%) invert(78%) sepia(89%) saturate(4464%) hue-rotate(257deg) brightness(106%) contrast(97%);
}

[data-bs-theme="dark"] .filter-info {
    filter: brightness(0) saturate(100%) invert(62%) sepia(98%) saturate(1151%) hue-rotate(152deg) brightness(97%) contrast(96%);
}

[data-bs-theme="dark"] .filter-danger {
    filter: brightness(0) saturate(100%) invert(55%) sepia(92%) saturate(4566%) hue-rotate(7deg) brightness(103%) contrast(101%);
}

[data-bs-theme="dark"] .filter-white {
    filter: brightness(0) saturate(100%) invert(85%) sepia(6%) saturate(542%) hue-rotate(195deg) brightness(95%) contrast(85%);
}

/*input, textarea, select {*/
/*	border-radius: 0!important;*/
/*	--bs-border-opacity: 1;*/
/*	border-color: rgba(var(--bs-secondary-rgb),var(--bs-border-opacity))!important;*/
/*}*/
/*button {*/
/*	border-radius: 0!important;*/
/*}*/

.w-logo .w-logo-name {
    color: var(--bs-primary-text-emphasis) !important;
    font-family: 'Impact', sans-serif;
    font-weight: 300;
    font-size: 25px;
    line-height:1.1;
    letter-spacing: 2px;
}
.w-logo .w-logo-des {
    font-size: 8px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: #34495e;
    font-weight: 600;
    margin-bottom: 0px;
}

@media (max-width: 767px) {
    .w-logo {
        margin-bottom: 10px;
    }
}

.menu_right_title {
    text-transform: uppercase;
    background: var(--bs-secondary-bg-subtle) !important;
    margin-bottom: 0!important;
    border: 1px dashed var(--bs-dark-bg-subtle)!important;
    border-radius: 7px 7px 0 0;
}
.menu_right_ul {
    border: 1px dashed var(--bs-dark-bg-subtle)!important;
    border-radius: 0 0 7px 7px;
}

/* Active tool in menu - bold and no link */
.menu_right_ul li a.active {
    font-weight: 700;
    color: var(--bs-body-color) !important;
    cursor: default;
    pointer-events: none;
}

.menu_right_ul li span.active {
    font-weight: 700;
    color: var(--bs-body-color);
}

/* Dark theme for active tool */
[data-bs-theme="dark"] .menu_right_ul li a.active,
[data-bs-theme="dark"] .menu_right_ul li span.active {
    color: var(--dark-text-primary) !important;
}

/* Tool Count Highlight Box */
.tool-count-highlight {
    background: var(--bs-secondary-bg-subtle);
    border-radius: 7px;
    padding: 18px 16px;
    text-align: center;
    border: 1px dashed var(--bs-dark-bg-subtle);
    transition: all 0.2s ease;
    cursor: pointer;
}

.tool-count-highlight:hover {
    border-color: var(--bs-primary-text-emphasis);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tool-count-icon {
    margin-bottom: 10px;
}

.tool-count-icon img {
    filter: brightness(0) saturate(100%) invert(14%) sepia(67%) saturate(2105%) hue-rotate(199deg) brightness(92%) contrast(100%);
    width: 32px !important;
    height: 32px !important;
}

.tool-count-content {
    color: var(--bs-body-color);
}

.tool-count-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--bs-secondary-color);
    margin-bottom: 6px;
}

.tool-count-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 4px;
    color: var(--bs-primary-text-emphasis);
    font-family: system-ui, -apple-system, sans-serif;
}

.tool-count-sublabel {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--bs-secondary-color);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Dark theme for tool count highlight */
[data-bs-theme="dark"] .tool-count-highlight {
    background: rgba(30, 34, 42, 0.6);
    border-color: rgba(79, 172, 254, 0.2);
}

[data-bs-theme="dark"] .tool-count-highlight:hover {
    border-color: rgba(79, 172, 254, 0.4);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-bs-theme="dark"] .tool-count-icon img {
    filter: brightness(0) saturate(100%) invert(85%) sepia(6%) saturate(542%) hue-rotate(195deg) brightness(95%) contrast(85%);
}

[data-bs-theme="dark"] .tool-count-label {
    color: var(--dark-text-muted);
}

[data-bs-theme="dark"] .tool-count-number {
    color: var(--dark-text-primary);
}

[data-bs-theme="dark"] .tool-count-sublabel {
    color: var(--dark-text-muted);
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .tool-count-highlight {
        margin-bottom: 20px;
        padding: 16px 14px;
    }
    
    .tool-count-number {
        font-size: 2.2rem;
    }
    
    .tool-count-icon img {
        width: 28px !important;
        height: 28px !important;
    }
}

#feedback_form textarea {
    max-width: 500px;
    width: 100%;
    font-size: 15px;
    border: 1px solid var(--bs-dark-bg-subtle)!important;
}

.tool_title {
    /*text-transform: uppercase;*/
}
.table-right tr td {
    text-align: right;
}
.table-right th {
    border-right: 1px solid var(--bs-tertiary-bg)!important;
}

.bi {
    vertical-align: -.125em;
    fill: currentColor;
}

label {
    /*color: var(--bs-dark-rgb)!important;*/
    color: var(--bs-body-color)!important;
}

#Wradical, #Wradical2 {
    font-size: 3em;
    padding-top: 0px;
    margin-right: -5px;
    color: #555;
}

#Wnum, #Wnum2 {
    border-top: 2px solid #555;
    padding-top: 5px;
    margin-top: 20px;
    width: calc(100% - 40px);
}

/*input:read-only {*/
/*	!*background-color: var(--bs-tertiary-bg)!important;*!*/
/*}*/
.form-control:disabled, .form-control[readonly] {
    /*background-color: var(--bs-gray-400)!important;*/
    /*color: var(--bs-gray-800)!important;*/

    background-color: #ccd4e0;
    color: var(--bs-dark)!important;;
    opacity: 1;
}

/* Dark theme override for better contrast */
[data-bs-theme="dark"] .form-control:disabled, 
[data-bs-theme="dark"] .form-control[readonly] {
    background-color: rgba(20, 24, 32, 0.6);
    color: #e1e5e9 !important;
    opacity: 1;
}

/* Dark theme input group text (unit labels) */
[data-bs-theme="dark"] .input-group-text {
    background-color: rgba(30, 34, 42, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
    color: #e1e5e9;
}

.td11, .td14 { display:none; }
.td12, .td31, .td34 { padding-bottom:3px; }
.td21, .td22, .td41, .td42 {
    border-top:var(--bs-secondary) 2px solid;
    padding-top:3px;
}

.math {
    font-family: times new roman;
    font-size: 1.5em;
    padding-left: 6px;
    font-weight: 400;
}
.math-sm {
    font-family: times new roman;
    font-size: 1.2em;
    padding-left: 6px;
    font-weight: 400;
}

mjx-container.MathJax {
    pointer-events: none;
}
.math-mini {
    font-family: times new roman;
    font-style: italic;
    font-weight: bold;
}
/*color: var(--bs-primary-text-emphasis) !important;*/
.btn-outline-primary-emphasis {
    --bs-btn-color: var(--bs-primary-text-emphasis) !important;;
    --bs-btn-border-color: var(--bs-primary-text-emphasis) !important;;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--bs-primary-text-emphasis) !important;;
    --bs-btn-hover-border-color: var(--bs-primary-text-emphasis) !important;;
    --bs-btn-focus-shadow-rgb: 13,110,253;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: var(--bs-primary-text-emphasis) !important;;
    --bs-btn-active-border-color: var(--bs-primary-text-emphasis) !important;;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
    --bs-btn-disabled-color: var(--bs-primary-text-emphasis) !important;;
    --bs-btn-disabled-bg: transparent;
    --bs-btn-disabled-border-color: var(--bs-primary-text-emphasis) !important;;
    --bs-btn-gradient: none;
}

.fraction {
    display: inline-block;
    position: relative;
    vertical-align: middle;
    letter-spacing: 0.001em;
    text-align: center;
}
.fraction > span {
    display: block;
    padding: 0.1em;
}
.fraction span.fdn {
    border-top: 2px solid black;
}
.cursorPointer {
    cursor:pointer!important
}

/* ======================================
   MINITOOLS STYLES
   ====================================== */

/* Minitools container */
.minitools {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 2px 0 0 0;
}

/* Minitools button base style */
.mini-tool-btn {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    font-size: 13px;
    color: #495057;
    text-decoration: none !important;
    transition: all 0.2s ease;
    background-color: transparent;
    border: none;
    cursor: pointer;
    user-select: none;
    position: relative;
}

.mini-tool-btn:hover {
    color: #212529;
    text-decoration: none !important;
}

.mini-tool-btn:active {
    color: #495057;
}

/* Add separator line after each tool except the last one */
.mini-tool-btn:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 16px;
    background-color: #dee2e6;
}

/* Minitools icon */
.mini-tool-icon {
    width: 14px;
    height: 14px;
    margin-right: 6px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.mini-tool-btn:hover .mini-tool-icon {
    opacity: 1;
}

/* Dark theme for minitools */
[data-bs-theme="dark"] .mini-tool-btn {
    background-color: transparent;
    border: none;
    color: #e1e5e9;
}

[data-bs-theme="dark"] .mini-tool-btn:hover {
    color: #c084fc;
}

[data-bs-theme="dark"] .mini-tool-btn:active {
    color: #e1e5e9;
}

[data-bs-theme="dark"] .mini-tool-btn:not(:last-child)::after {
    background-color: rgba(255, 255, 255, 0.2);
}

[data-bs-theme="dark"] .mini-tool-icon {
    filter: brightness(0) saturate(100%) invert(85%) sepia(6%) saturate(542%) hue-rotate(195deg) brightness(95%) contrast(85%);
}

[data-bs-theme="dark"] .mini-tool-btn:hover .mini-tool-icon {
    filter: brightness(0) saturate(100%) invert(78%) sepia(89%) saturate(4464%) hue-rotate(257deg) brightness(106%) contrast(97%);
}

/* Responsive minitools */
@media (max-width: 576px) {
    .minitools {
        gap: 4px;
    }
    
    .mini-tool-btn {
        padding: 4px 8px;
        font-size: 12px;
    }
    
    .mini-tool-icon {
        width: 12px;
        height: 12px;
        margin-right: 4px;
    }
}

/* Old mini-action class - deprecated */
.mini-action {
    border-right: 1px solid #888;
    padding-right: 5px;
    margin-right: 3px;
}

.hidden-input-file {
    display: none;
}
.custom-hidden-input-file {
    display: inline-block;
    cursor: pointer;
    text-decoration: none;
    color: var(--bs-primary-text-emphasis) !important;
}
.custom-hidden-input-file:hover {
    text-decoration: underline;
}
.nav-breadcrumb {
    --bs-breadcrumb-divider: '›';
    border-bottom: 1px dashed #d1d2d4;
    margin-bottom: 10px;
}
.nav-breadcrumb > ol {
    margin-bottom: 2px;
}
@media screen and (max-width: 767px) {
    .lead {
        font-size: 1.01rem;
        font-weight: 300;
    }
}

/* Tool and Category Lists */
.tool-list, .category-list {
    list-style-type: disc;
    padding-left: 20px;
    font-size: 16px;
    line-height: 1.8;
}

.tool-list li, .category-list li {
    margin-bottom: 8px;
}

.tool-list a, .category-list a {
    color: var(--bs-primary-text-emphasis);
    text-decoration: none;
    font-weight: 400;
}

.tool-list a:hover, .category-list a:hover {
    text-decoration: underline;
    color: var(--bs-primary);
}

/* Nested lists for subcategories */
.category-list ul {
    list-style-type: circle;
    margin-top: 8px;
    margin-bottom: 12px;
    padding-left: 20px;
}

.category-list ul li {
    margin-bottom: 4px;
    font-size: 15px;
}

/* Tool converter title styling */
.fs-3 {
    font-weight: 500;
    margin-bottom: 25px;
    color: var(--bs-primary-text-emphasis) !important;
}

/* ======================================
   ADMIN FORM STYLES (Inline after breadcrumb)
   ====================================== */

/* Admin section wrapper */
.admin-section-wrapper {
    margin-bottom: 20px;
    background: transparent;
    border: none;
}

/* Admin toggle button */
.btn-admin-toggle {
    width: auto;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 0.35rem 0.85rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-block;
    border-radius: 6px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn-admin-toggle:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6a3d8f 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.btn-admin-toggle .admin-toggle-arrow {
    font-size: 0.7rem;
    transition: transform 0.3s ease;
    display: inline-block;
    margin-left: 0.25rem;
}

.btn-admin-toggle.active .admin-toggle-arrow {
    transform: rotate(180deg);
}

/* Admin form container */
.admin-form-container {
    background: white;
    padding: 25px;
    border-top: 2px solid #e9ecef;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Admin form */
.admin-form {
    max-width: 100%;
}

/* Admin groups */
.admin-group {
    height: 100%;
}

.admin-group-title {
    font-size: 16px;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e9ecef;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Form labels and inputs */
.admin-form .form-label {
    font-size: 13px;
    font-weight: 600;
    color: #495057;
    margin-bottom: 5px;
    text-transform: capitalize;
}

.admin-form .form-control {
    font-size: 14px;
    border-radius: 6px;
    border: 1px solid #ced4da;
    transition: all 0.2s ease;
}

.admin-form .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.15);
}

.admin-form textarea.form-control {
    resize: vertical;
}

/* Admin actions */
.admin-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 2px solid #e9ecef;
}

.admin-actions .btn {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.admin-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Admin messages */
.admin-message {
    padding: 12px 15px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.admin-message-success,
.admin-message-error,
.admin-message-info {
    background: var(--bs-light-border-subtle);
    color: var(--bs-body-color);
    border: 1px dotted var(--bs-dark-bg-subtle);
}

/* Dark theme admin form */
[data-bs-theme="dark"] .admin-section-wrapper {
    background: transparent;
    border: none;
}

[data-bs-theme="dark"] .admin-form-container {
    background: rgba(30, 34, 42, 0.8);
    border-top-color: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .admin-group-title {
    color: #a78bfa;
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .admin-form .form-label {
    color: #e1e5e9;
}

[data-bs-theme="dark"] .admin-form .form-control {
    background: rgba(20, 24, 32, 0.8);
    border-color: rgba(255, 255, 255, 0.15);
    color: #e1e5e9;
}

[data-bs-theme="dark"] .admin-form .form-control:focus {
    background: rgba(20, 24, 32, 0.95);
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

[data-bs-theme="dark"] .admin-message-success,
[data-bs-theme="dark"] .admin-message-error,
[data-bs-theme="dark"] .admin-message-info {
    background: rgba(30, 34, 42, 0.6);
    color: var(--dark-text-primary);
    border: 1px dotted rgba(168, 85, 247, 0.3);
}

[data-bs-theme="dark"] .admin-actions {
    border-top-color: rgba(255, 255, 255, 0.1);
}

/* Responsive design */
@media (max-width: 768px) {
    .admin-form-container {
        padding: 15px;
    }
    
    .admin-actions {
        flex-direction: column;
    }
    
    .admin-actions .btn {
        width: 100%;
    }
}

/* ======================================
   NEUTRAL ALERTS - Override Bootstrap
   ====================================== */

/* Reset all alert types to neutral appearance */
.alert {
    background: var(--bs-light-border-subtle) !important;
    border: 1px dotted var(--bs-dark-bg-subtle) !important;
    border-radius: 7px;
    color: var(--bs-body-color) !important;
    padding: 16px 20px;
    box-shadow: none;
}

/* Remove default Bootstrap alert colors */
.alert-primary,
.alert-secondary,
.alert-success,
.alert-danger,
.alert-warning,
.alert-info,
.alert-light,
.alert-dark {
    --bs-alert-color: var(--bs-body-color) !important;
    --bs-alert-bg: var(--bs-light-border-subtle) !important;
    --bs-alert-border-color: var(--bs-dark-bg-subtle) !important;
    background: var(--bs-light-border-subtle) !important;
    border: 1px dotted var(--bs-dark-bg-subtle) !important;
    color: var(--bs-body-color) !important;
}

/* Alert headings */
.alert .alert-heading {
    color: var(--bs-primary-text-emphasis) !important;
    font-weight: 600;
    margin-bottom: 8px;
}

/* Alert links */
.alert a,
.alert .alert-link {
    color: var(--bs-primary-text-emphasis) !important;
    font-weight: 500;
    text-decoration: underline;
}

.alert a:hover,
.alert .alert-link:hover {
    color: var(--bs-primary) !important;
}

/* Alert dismiss button */
.alert .btn-close {
    opacity: 0.5;
    filter: none;
}

.alert .btn-close:hover {
    opacity: 0.8;
}

/* Alert icons (if using Bootstrap icons) */
.alert svg,
.alert img {
    opacity: 0.8;
}

/* Dark theme for neutral alerts */
[data-bs-theme="dark"] .alert {
    background: rgba(30, 34, 42, 0.6) !important;
    border: 1px dotted rgba(168, 85, 247, 0.3) !important;
    color: var(--dark-text-primary) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-bs-theme="dark"] .alert-primary,
[data-bs-theme="dark"] .alert-secondary,
[data-bs-theme="dark"] .alert-success,
[data-bs-theme="dark"] .alert-danger,
[data-bs-theme="dark"] .alert-warning,
[data-bs-theme="dark"] .alert-info,
[data-bs-theme="dark"] .alert-light,
[data-bs-theme="dark"] .alert-dark {
    --bs-alert-color: var(--dark-text-primary) !important;
    --bs-alert-bg: rgba(30, 34, 42, 0.6) !important;
    --bs-alert-border-color: rgba(168, 85, 247, 0.3) !important;
    background: rgba(30, 34, 42, 0.6) !important;
    border: 1px dotted rgba(168, 85, 247, 0.3) !important;
    color: var(--dark-text-primary) !important;
}

[data-bs-theme="dark"] .alert .alert-heading {
    color: var(--dark-primary-light) !important;
}

[data-bs-theme="dark"] .alert a,
[data-bs-theme="dark"] .alert .alert-link {
    color: var(--dark-primary-light) !important;
}

[data-bs-theme="dark"] .alert a:hover,
[data-bs-theme="dark"] .alert .alert-link:hover {
    color: var(--dark-primary) !important;
    text-shadow: 0 0 8px rgba(168, 85, 247, 0.4);
}

[data-bs-theme="dark"] .alert .btn-close {
    filter: brightness(0) invert(1);
}

/* Responsive adjustments for alerts */
@media (max-width: 767px) {
    .alert {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .alert .alert-heading {
        font-size: 16px;
    }
}

/* ======================================
   HOME PAGE FEATURES & FAQ
   ====================================== */

/* Features Section */
.home-feature-box {
    padding: 18px;
    border-radius: 8px;
    background: rgba(var(--bs-primary-rgb), 0.02);
    border: 1px solid rgba(var(--bs-primary-rgb), 0.08);
    transition: all 0.2s ease;
}

.home-feature-box:hover {
    background: rgba(var(--bs-primary-rgb), 0.04);
    border-color: rgba(var(--bs-primary-rgb), 0.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* FAQ Accordion Styling */
.accordion {
    --bs-accordion-border-radius: 8px;
    --bs-accordion-inner-border-radius: 7px;
}

.accordion-item {
    border: 1px solid rgba(var(--bs-primary-rgb), 0.1);
    margin-bottom: 10px;
    border-radius: 8px !important;
    overflow: hidden;
    background: rgba(var(--bs-primary-rgb), 0.02);
}

.accordion-button {
    padding: 14px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--bs-body-color);
    background: transparent;
    border: none;
}

.accordion-button:not(.collapsed) {
    background: rgba(var(--bs-primary-rgb), 0.05);
    color: var(--bs-primary-text-emphasis);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: rgba(var(--bs-primary-rgb), 0.15);
}

.accordion-button::after {
    background-size: 1rem;
    width: 1rem;
    height: 1rem;
}

.accordion-body {
    padding: 14px 18px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--bs-secondary-color);
    background: rgba(255, 255, 255, 0.5);
}

/* Dark theme for features */
[data-bs-theme="dark"] .home-feature-box {
    background: rgba(168, 85, 247, 0.05);
    border-color: rgba(168, 85, 247, 0.15);
}

[data-bs-theme="dark"] .home-feature-box:hover {
    background: rgba(168, 85, 247, 0.08);
    border-color: rgba(168, 85, 247, 0.25);
    box-shadow: 0 2px 12px rgba(168, 85, 247, 0.1);
}

/* Dark theme for FAQ accordion */
[data-bs-theme="dark"] .accordion-item {
    background: rgba(30, 34, 42, 0.6);
    border-color: rgba(168, 85, 247, 0.15);
}

[data-bs-theme="dark"] .accordion-button {
    color: var(--dark-text-primary);
    background: transparent;
}

[data-bs-theme="dark"] .accordion-button:not(.collapsed) {
    background: rgba(168, 85, 247, 0.1);
    color: var(--dark-primary-light);
}

[data-bs-theme="dark"] .accordion-body {
    background: rgba(20, 24, 32, 0.4);
    color: var(--dark-text-secondary);
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .home-feature-box {
        padding: 14px;
    }
    
    .accordion-button {
        padding: 12px 14px;
        font-size: 14px;
    }
    
    .accordion-body {
        padding: 12px 14px;
        font-size: 13px;
    }
}

/* ======================================
   SEARCH RESULTS STYLES
   ====================================== */

/* ========================================
   🔍 SEARCH STYLING - Neutral Design
   ======================================== */

/* Search Overlay Backdrop */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    backdrop-filter: blur(4px);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Search Container */
#navbarSearch {
    position: relative;
    margin-bottom: 0.5rem;
}

/* Search Input Wrapper */
.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.search-input-wrapper.focused {
    position: relative;
    z-index: 1050;
}

.search-input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    z-index: 1052;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.search-input-wrapper.focused .search-input-icon {
    opacity: 0.8;
}

/* Search Input Field */
.search-input-field {
    border-radius: 10px;
    border: 2px solid #d1d5db;
    padding: 12px 48px 12px 48px !important;
    font-size: 15px;
    transition: all 0.3s ease;
    width: 100%;
    background: #ffffff;
    color: #1f2937;
    position: relative;
    z-index: 1051;
}

.search-input-field::placeholder {
    color: #9ca3af;
}

.search-input-field:focus {
    border-color: #052c65;
    box-shadow: 0 0 0 4px rgba(5, 44, 101, 0.1),
                0 4px 12px rgba(5, 44, 101, 0.15);
    outline: none;
    background: #ffffff;
}

/* Clear Button */
.search-clear-btn {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    opacity: 0.5;
    transition: all 0.2s ease;
    display: none;
    z-index: 1052;
}

.search-clear-btn:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.search-clear-btn:active {
    transform: translateY(-50%) scale(0.9);
}

#navbarSearch .form-control {
    border-radius: 8px;
    border: 1px solid rgba(var(--bs-primary-rgb), 0.2);
    padding: 10px 16px;
    font-size: 15px;
    transition: all 0.2s ease;
}

#navbarSearch .form-control:focus {
    border-color: rgba(var(--bs-primary-rgb), 0.4);
    box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.08);
    outline: none;
}

/* Search Results Container */
.search-results-container {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: #ffffff;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    max-height: 500px;
    overflow-y: auto;
    z-index: 1051;
    display: none;
    animation: searchResultsSlideIn 0.25s ease;
}

@keyframes searchResultsSlideIn {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Search Result Item */
.search-result-item {
    padding: 16px 20px;
    border-bottom: 1px solid #f3f4f6;
    transition: all 0.2s ease;
    cursor: pointer;
    text-decoration: none !important;
    display: block;
    color: inherit;
    position: relative;
}

.search-result-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: #052c65;
    transform: scaleY(0);
    transition: transform 0.2s ease;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: #f9fafb;
    text-decoration: none !important;
}

.search-result-item:hover::before {
    transform: scaleY(1);
}

.search-result-item.no-results,
.search-result-item.loading {
    text-align: center;
    color: #6b7280;
    font-style: italic;
    cursor: default;
    pointer-events: none;
    padding: 32px 20px;
}

.search-result-item.no-results:hover,
.search-result-item.loading:hover {
    background: transparent;
}

.search-result-item.no-results::before,
.search-result-item.loading::before {
    display: none;
}

/* Search Result Content */
.search-result-name {
    font-size: 16px;
    font-weight: 600;
    color: #052c65;
    margin-bottom: 6px;
    line-height: 1.4;
}

.search-result-breadcrumb {
    font-size: 12px;
    color: #6b7280;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-weight: 500;
}

.search-result-description {
    font-size: 13px;
    color: #4b5563;
    line-height: 1.5;
    margin-top: 4px;
}

/* Highlight Matched Text */
.search-result-name mark,
.search-result-description mark,
.search-result-breadcrumb mark {
    background-color: #fef3c7;
    color: #92400e;
    font-weight: 700;
    padding: 2px 4px;
    border-radius: 4px;
}

/* Custom Scrollbar */
.search-results-container::-webkit-scrollbar {
    width: 8px;
}

.search-results-container::-webkit-scrollbar-track {
    background: #f3f4f6;
    border-radius: 0 12px 12px 0;
}

.search-results-container::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 10px;
}

.search-results-container::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* ========================================
   🌙 DARK THEME
   ======================================== */

[data-bs-theme="dark"] .search-overlay {
    background: rgba(0, 0, 0, 0.75);
}

[data-bs-theme="dark"] .search-input-field {
    background: #1f2937;
    border-color: #374151;
    color: #f3f4f6;
}

[data-bs-theme="dark"] .search-input-field::placeholder {
    color: #6b7280;
}

[data-bs-theme="dark"] .search-input-field:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15),
                0 4px 12px rgba(59, 130, 246, 0.2);
    background: #111827;
}

[data-bs-theme="dark"] .search-input-icon {
    filter: brightness(0) saturate(100%) invert(85%) sepia(6%) saturate(542%) hue-rotate(195deg) brightness(95%) contrast(85%);
}

[data-bs-theme="dark"] .search-clear-btn img {
    filter: brightness(0) saturate(100%) invert(85%) sepia(6%) saturate(542%) hue-rotate(195deg) brightness(95%) contrast(85%);
}

[data-bs-theme="dark"] .search-results-container {
    background: #1f2937;
    border-color: #374151;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

[data-bs-theme="dark"] .search-result-item {
    border-bottom-color: #374151;
}

[data-bs-theme="dark"] .search-result-item::before {
    background: #3b82f6;
}

[data-bs-theme="dark"] .search-result-item:hover {
    background: #111827;
}

[data-bs-theme="dark"] .search-result-name {
    color: #e5e7eb;
}

[data-bs-theme="dark"] .search-result-breadcrumb {
    color: #9ca3af;
}

[data-bs-theme="dark"] .search-result-description {
    color: #d1d5db;
}

[data-bs-theme="dark"] .search-result-name mark,
[data-bs-theme="dark"] .search-result-description mark,
[data-bs-theme="dark"] .search-result-breadcrumb mark {
    background-color: #3b82f6;
    color: #ffffff;
}

[data-bs-theme="dark"] .search-results-container::-webkit-scrollbar-track {
    background: #111827;
}

[data-bs-theme="dark"] .search-results-container::-webkit-scrollbar-thumb {
    background: #4b5563;
}

[data-bs-theme="dark"] .search-results-container::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

/* Responsive adjustments for search */
@media (max-width: 767px) {
    .search-results-container {
        max-height: 400px;
    }
    
    .search-result-item {
        padding: 12px 14px;
    }
    
    .search-result-name {
        font-size: 14px;
    }
    
    .search-result-breadcrumb {
        font-size: 11px;
    }
    
    .search-result-description {
        font-size: 12px;
    }
}

@media (max-width: 576px) {
    .search-results-container {
        max-height: 350px;
        top: calc(100% + 4px);
    }
    
    .search-result-item {
        padding: 10px 12px;
    }
    
    .search-result-name {
        font-size: 13px;
    }
}

/* ======================================
   PRIMARY BUTTON STYLES - #2d415e
   ====================================== */

/* Primary Button */
.btn-primary {
    --bs-btn-bg: #2d415e !important;
    --bs-btn-border-color: #2d415e !important;
    --bs-btn-color: #ffffff !important;
    --bs-btn-hover-bg: #243549 !important;
    --bs-btn-hover-border-color: #243549 !important;
    --bs-btn-hover-color: #ffffff !important;
    --bs-btn-active-bg: #1d2a3a !important;
    --bs-btn-active-border-color: #1d2a3a !important;
    --bs-btn-active-color: #ffffff !important;
    --bs-btn-disabled-bg: #2d415e !important;
    --bs-btn-disabled-border-color: #2d415e !important;
    --bs-btn-disabled-color: #ffffff !important;
}

.btn-primary:focus {
    box-shadow: 0 0 0 0.25rem rgba(45, 65, 94, 0.5) !important;
}

/* Outline Primary Button */
.btn-outline-primary {
    --bs-btn-color: #2d415e !important;
    --bs-btn-border-color: #2d415e !important;
    --bs-btn-hover-bg: #2d415e !important;
    --bs-btn-hover-border-color: #2d415e !important;
    --bs-btn-hover-color: #ffffff !important;
    --bs-btn-active-bg: #2d415e !important;
    --bs-btn-active-border-color: #2d415e !important;
    --bs-btn-active-color: #ffffff !important;
    --bs-btn-disabled-color: #2d415e !important;
    --bs-btn-disabled-bg: transparent !important;
    --bs-btn-disabled-border-color: #2d415e !important;
}

.btn-outline-primary:focus {
    box-shadow: 0 0 0 0.25rem rgba(45, 65, 94, 0.5) !important;
}

/* Icon color change on hover for outline-primary */
.btn-outline-primary:hover .filter-svg {
    filter: brightness(0) invert(1) !important;
}

/* Style for checked state with btn-check */
.btn-check:checked + .btn-outline-primary {
    background-color: #2d415e !important;
    border-color: #2d415e !important;
    color: #ffffff !important;
}

.btn-check:focus + .btn-outline-primary {
    box-shadow: 0 0 0 0.25rem rgba(45, 65, 94, 0.5) !important;
}

/* Dark theme for primary buttons */
[data-bs-theme="dark"] .btn-primary {
    --bs-btn-bg: #3d5670 !important;
    --bs-btn-border-color: #3d5670 !important;
    --bs-btn-color: #ffffff !important;
    --bs-btn-hover-bg: #4a6682 !important;
    --bs-btn-hover-border-color: #4a6682 !important;
    --bs-btn-hover-color: #ffffff !important;
    --bs-btn-active-bg: #2d415e !important;
    --bs-btn-active-border-color: #2d415e !important;
    --bs-btn-active-color: #ffffff !important;
}

[data-bs-theme="dark"] .btn-primary:focus {
    box-shadow: 0 0 0 0.25rem rgba(61, 86, 112, 0.5) !important;
}

[data-bs-theme="dark"] .btn-outline-primary {
    --bs-btn-color: #5d7a9b !important;
    --bs-btn-border-color: #5d7a9b !important;
    --bs-btn-hover-bg: #5d7a9b !important;
    --bs-btn-hover-border-color: #5d7a9b !important;
    --bs-btn-hover-color: #ffffff !important;
    --bs-btn-active-bg: #4a6682 !important;
    --bs-btn-active-border-color: #4a6682 !important;
    --bs-btn-active-color: #ffffff !important;
}

[data-bs-theme="dark"] .btn-outline-primary:focus {
    box-shadow: 0 0 0 0.25rem rgba(93, 122, 155, 0.5) !important;
}

/* Dark theme - Icon color change on hover */
[data-bs-theme="dark"] .btn-outline-primary:hover .filter-svg {
    filter: brightness(0) invert(1) !important;
}

[data-bs-theme="dark"] .btn-check:checked + .btn-outline-primary {
    background-color: #5d7a9b !important;
    border-color: #5d7a9b !important;
    color: #ffffff !important;
}

/* ======================================
   NAV-LINK STYLES - Override Bootstrap
   ====================================== */

/* Nav link base style */
.nav-link {
    color: #052c65 !important;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: #041f4a !important;
}

.nav-link:focus {
    color: #052c65 !important;
}

.nav-link.active {
    color: #052c65 !important;
    font-weight: 600;
}

/* Dark theme for nav-link */
[data-bs-theme="dark"] .nav-link {
    color: var(--dark-primary-light) !important;
}

[data-bs-theme="dark"] .nav-link:hover {
    color: var(--dark-primary) !important;
    text-shadow: 0 0 8px rgba(168, 85, 247, 0.4);
}

[data-bs-theme="dark"] .nav-link:focus {
    color: var(--dark-primary-light) !important;
}

[data-bs-theme="dark"] .nav-link.active {
    color: var(--dark-primary-light) !important;
    font-weight: 600;
}

/* ======================================
   BG-PRIMARY BACKGROUND COLOR
   ====================================== */
.bg-primary {
    background-color: #2d415e !important;
}

/* ======================================
   DRAG & DROP ZONE STYLES
   ====================================== */

/* Drag & Drop Zone */
.drag-drop-zone {
    border: 2px dashed #ced4da;
    border-radius: 0.375rem;
    padding: 1.5rem;
    text-align: center;
    background-color: #f8f9fa;
    transition: all 0.3s ease;
    cursor: pointer;
    user-select: none;
}

.drag-drop-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 0.5rem;
}

.drag-drop-svg {
    width: 32px;
    height: 32px;
    opacity: 0.6;
    transition: all 0.3s ease;
    filter: grayscale(100%);
}

.drag-drop-zone:hover .drag-drop-svg {
    opacity: 1;
    filter: grayscale(0%);
    transform: scale(1.1);
}

.drag-drop-zone.drag-over .drag-drop-svg {
    opacity: 1;
    filter: grayscale(0%);
    transform: scale(1.2);
    animation: bounce 0.6s ease-in-out;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: scale(1.2) translateY(0); }
    40% { transform: scale(1.2) translateY(-10px); }
    60% { transform: scale(1.2) translateY(-5px); }
}

.drag-drop-zone:hover {
    border-color: #052c65;
    background-color: #f8f9ff;
}

.drag-drop-zone.drag-over {
    border-color: #052c65;
    background-color: #e3f2fd;
    transform: scale(1.02);
}

.drag-drop-text {
    color: #495057 !important;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    user-select: none;
    cursor: pointer;
}

.drag-drop-hint {
    color: #6c757d !important;
    font-size: 0.9rem;
    font-weight: 400;
    user-select: none;
    cursor: pointer;
}

/* Dark mode for drag & drop */
[data-bs-theme="dark"] .drag-drop-zone {
    border-color: #495057;
    background-color: #212529;
}

[data-bs-theme="dark"] .drag-drop-zone:hover {
    border-color: #052c65;
    background-color: #1a1d29;
}

[data-bs-theme="dark"] .drag-drop-text {
    color: #e9ecef !important;
}

[data-bs-theme="dark"] .drag-drop-hint {
    color: #adb5bd !important;
}

[data-bs-theme="dark"] .drag-drop-svg {
    filter: grayscale(100%) brightness(0) invert(1);
    opacity: 0.7;
}