/*--- general ---*/
@font-face {
    font-family: 'Open Sans';
    font-style: normal;
    font-stretch: 100%;
    src: url('../font/open_sans.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
body {
    font-family: "Open Sans", sans-serif;
    color: var(--bs-body-color);
    background: var(--bs-body-bg);
}
a {
    color: var(--bs-body-color);
    text-decoration: none;
}
a:hover {
    color: var(--bs-tertiary-color);
    text-decoration: none;
}

/*--- back to top button ---*/
.back-to-top {
    position: fixed;
    visibility: hidden;
    opacity: 0;
    right: 15px;
    bottom: 15px;
    z-index: 996;
    background: var(--bs-black);
    width: 40px;
    height: 40px;
    border-radius: 50px;
    transition: all 0.5s;
}

.back-to-top i {
    font-size: 28px;
    color: var(--bs-white);
    line-height: 0;
}

.back-to-top:hover {
    background: var(--bs-gray-800);
    color: var(--bs-white);
}

.back-to-top.active {
    visibility: visible;
    opacity: 1;
}

/*--- header ---*/
#header {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 300px;
    transition: all ease-in-out 0.5s;
    z-index: 9997;
    padding: 0 15px;
    overflow-y: auto;
    background: var(--bs-dark);
    background-image: linear-gradient(0deg, var(--bs-dark) 10%, var(--bs-gray-800) 100%);
}

/*--- scrollbar main menu ---*/
#header {
    scrollbar-width: thin;
    scrollbar-color: var(--bs-gray-700) var(--bs-dark);
}/* firefox */

#header::-webkit-scrollbar {
    width: 1em;
}/* chrome, edge, and safari */

#header::-webkit-scrollbar-track {
    background: var(--bs-dark);
}/* chrome, edge, and safari */

#header::-webkit-scrollbar-thumb {
    background-color: var(--bs-dark);
    border-radius: 20px;
    border: 3px solid var(--bs-gray-700);
}/* chrome, edge, and safari */

#header .site-profile img.profile-image {
    margin: 15px auto;
    display: block;
    width: 120px;
    height: 120px;
    border: 8px solid var(--bs-gray-800);
    transition: 0.5s;
    box-shadow: 0 1px 2px var(--bs-black);
}

#header .site-profile img.profile-image:hover {
    border: 8px solid var(--bs-gray-600);
}

#header .site-profile .social-icon img {
    filter: invert(100%);
}

#header .site-profile h1 {
    font-size: 24px;
    margin: 0;
    padding: 0;
    font-weight: 500;
}

#header .site-profile h1 a,
#header .site-profile h1 a:hover {
    color: var(--bs-white);
    text-decoration: none;
    align-items: center;
    justify-content: center;
    text-shadow: 0 1px 2px var(--bs-black);
}

#header .site-profile .social-links a {
    font-size: 18px;
    display: inline-block;
    background: var(--bs-gray-800);
    color: var(--bs-white);
    line-height: 1;
    padding: 8px 0;
    margin-right: 4px;
    border-radius: 50%;
    text-align: center;
    width: 36px;
    height: 36px;
    transition: 0.5s;
    box-shadow: 0 1px 1px var(--bs-black);
}

#header .site-profile .social-links a:hover {
    background: var(--bs-gray-600);
    color: var(--bs-white);
    text-decoration: none;
}

#main {
    margin-left: 300px;
}

.container,
.container-fluid {
    padding-left: 30px;
    padding-right: 30px;
}

@media (max-width: 1199px) {
    #header {
        left: -300px;
    }
    #main {
        margin-left: 0;
    }
    .container,
    .container-fluid {
        padding-left: 12px;
        padding-right: 12px;
    }
}

/*--- desktop navigation menu ---*/
.nav-menu {
    padding: 30px 0 100px 0;
}

.nav-menu * {
    margin: 0;
    padding: 0;
    list-style: none;
    transition: all 0.5s;
}

.nav-menu ul li ul li {
    display: block;
    width: 250px;
    line-height: 2rem;
    vertical-align: middle;
}

.nav-menu ul li ul li {
    border-bottom: 1px solid transparent;
    border-image: linear-gradient(to right, var(--bs-gray-800), transparent);
    border-image-slice: 1;
}

.nav-menu ul li ul li:last-child {
    border: none;
    margin-bottom: 2rem;
}

.nav-menu > ul > li {
    position: relative;
    white-space: nowrap;
}

.nav-menu ul li ul li a::before {
    content: "\2022";
    font-weight: 500;
    margin-right: 10px;
    color: var(--bs-gray-400);
}

.nav-menu a,
.nav-menu a:focus {
    display: flex;
    align-items: center;
    color: var(--bs-gray-400);
    padding: 5px 15px;
    font-size: 15px;
    font-weight: 100;
}

.nav-menu ul li a:first-child:not(ul li ul li a) {
    text-transform: uppercase;
    font-weight: 500;
    color: var(--bs-gray-600);
}

.nav-menu a:hover,
.nav-menu .active,
.nav-menu .active:focus,
.nav-menu li:hover > a {
    text-decoration: none;
    color: var(--bs-white);
    text-shadow: 0 1px 1px var(--bs-black);
}

.nav-menu ul li ul li a:hover {
    background: transparent;
    background: linear-gradient(90deg, rgba(0,0,0,0.1) 0%, transparent 100%);
}

/*--- mobile navigation menu ---*/
.mobile-nav-toggle {
    position: fixed;
    right: 15px;
    top: 20px;
    z-index: 9998;
    border: 0;
    font-size: 24px;
    transition: all 0.5s;
    outline: none !important;
    background: var(--bs-black);
    color: var(--bs-white);
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    border-radius: 50px;
    cursor: pointer;
}

.mobile-nav-active {
    overflow: hidden;
}

.mobile-nav-active #header {
    left: 0;
}

/*--- sections ---*/
section {
    padding: 60px 0;
    overflow: hidden;
}

.section-title {
    padding-bottom: 30px;
}

.section-title h2 {
    font-size: 32px;
    font-weight: 500;
    margin-bottom: 20px;
    padding-bottom: 20px;
    position: relative;
    color: var(--bs-body-color);
}

.section-title p {
    margin-bottom: 0;
}

/*--- details ---*/
.portfolio-details {
    padding-top: 50px;
    min-height: 100vh;
    background: linear-gradient(rgba(var(--bs-body-bg-rgb), 0.9), rgba(var(--bs-body-bg-rgb), 0.9)), url('../img/profile-background.jpg') no-repeat fixed;
    background-size: cover;
    box-shadow: rgba(0, 0, 0, 0.25) 0px 25px 30px -20px inset;
}

.portfolio-details .portfolio-info {
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 5px;
    background: var(--bs-body-bg);
    background-image: linear-gradient(135deg, var(--bs-secondary-bg) 10%, var(--bs-body-bg) 100%);
    box-shadow: rgba(0, 0, 0, 0.25) 0px 1px 4px;
}

.portfolio-details .portfolio-info h3 {
    font-size: 22px;
    font-weight: 500;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--bs-border-color);
}

/*--- breadcrumbs ---*/
.breadcrumbs {
    padding: 15px 0;
    background: var(--bs-body-bg);
    background-image: linear-gradient(135deg, var(--bs-secondary-bg) 10%, var(--bs-body-bg) 100%);
    border-bottom: 1px solid var(--bs-border-color);
}

.breadcrumbs h2 {
    font-size: 30px;
    font-weight: 300;
    text-shadow: 2px 7px 5px rgba(0,0,0,0.3), 0px -4px 10px rgba(255,255,255,0.3);
}

.breadcrumbs ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 15px;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "\27e9";
    color: var(--bs-body-color);
}

@media (max-width: 768px) {
    .breadcrumbs .d-flex {
        display: block !important;
    }
    .breadcrumbs ol {
        display: block;
    }
    .breadcrumbs ol li {
        display: inline-block;
    }
}

/*--- ilch ---*/
.ilch-head {
    color: var(--bs-body-color);
}

/*--- forum ---*/
#forum h1 {
    display: none;
}

#forum img[src*="icon_post_target.png"] {
    content: url('../img/forum/icon_post_target.png');
}

#forum img[src*="topic_read.png"] {
    content: url('../img/forum/topic_read.png');
}

#forum dl.icon.topic-read {
    background-image: url('../img/forum/topic_read.png') !important;
}

#forum .btn.btn-primary,
#forum .btn.btn-sm.btn-primary {
    background-color: var(--bs-gray-800);
    border: 0;
}

#forum .btn.btn-primary:hover,
#forum .btn.btn-sm.btn-primary:hover {
    background-color: var(--bs-gray-600);
    border: 0;
}

#forum .statistic {
    background-color: var(--bs-body-bg);
}

/*--- bs5 cards ---*/
.card {
    margin-bottom: 1rem;
}

/*--- calendar ---*/
#calendar table {
    background: var(--bs-body-bg);
}

/*--- portfolio footer ---*/
#portfolio-footer {
    margin: 0;
    padding: 10px;
    color: var(--bs-gray-400);
    font-size: 12px;
    position: fixed;
    left: 0;
    bottom: 0;
    width: 300px;
    z-index: 9999;
    background: var(--bs-dark);
    border-top: 1px solid var(--bs-gray-800);
}

#portfolio-footer a {
    color: var(--bs-gray-400);
}

#portfolio-footer a:hover {
    color: var(--bs-white);
    text-shadow: 0 1px 1px var(--bs-black);
}

#portfolio-footer .userpanel {
    padding-bottom: 5px;
    text-align: center;
    font-size: 12px;
    border-bottom: 1px solid var(--bs-gray-800);
}

#portfolio-footer .copyright {
    padding-top: 5px;
    text-align: center;
}

@media (max-width: 1199px) {
    #portfolio-footer {
        position: static;
        width: auto;
        padding-right: 20px 15px;
    }
}