body{
    background:#F0EEE9;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto;
    color:#333;
}
/* Sidebar */
.sidebar{
    min-height:100vh;
    border-right:1px solid #0F4C81;
    padding:30px 0px;
    position:sticky;
    top:0;
    align-self:flex-start;
}
.logo{
    padding: 0 20px 30px 20px;
    border-bottom: 1px solid #0F4C81;
    line-height:1;
    display: flex;
    justify-content: center;
}
.blog-list{
    padding: 30px 20px 30px 20px;
}
.blog-list li a{
    color: #0F4C81;
    text-decoration: underline;
}
.introduce{
    padding: 0 20px 30px 20px;
    border-bottom: 1px solid #0F4C81;
    color: #0F4C81;
    font-size: 15px;
    font-weight: 400;
}
.logo-img{
    width:65%;
    height:auto;
    display:block;
}
.nav-link{
    text-transform: uppercase;
    color:#0F4C81;
    padding: 3px 20px;
    transition:.2s;
}
.nav-link.active{
    border: 1px solid #0F4C81;
    color:#0F4C81;
    font-weight:600;
}
.nav-link:hover{
    color:#0F4C81;
}
.blog-list small{
    color:#3F6F9A;
}
/* Content */
.content{
    padding: 0;
}
section#about,#experience,#projects {
    padding: 0 30px 30px 30px;
    border-bottom: 1px solid #0F4C81;
    margin-bottom: 30px !important;
}
section#about.section-collapsed , #experience.section-collapsed, #projects.section-collapsed{
    padding-bottom: 0 !important;
}


/* Top header menu sticky */
.top-menu{
    padding-left: 30px !important;
    position:sticky;
    top:0;
    z-index:50;
    background: #F0EEE9;
    margin-bottom: 30px !important;
    padding:10px 0;
    border-bottom:1px solid #0F4C81;
}
h2.section-title{
    font-size:18px;
    letter-spacing:1px;
    color:#0F4C81;
    padding-bottom:10px;
    margin-bottom:20px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    cursor:pointer;
}
.section-title i{
    transition:.3s ease;
}
.section-collapsed .section-title i{
    transform:rotate(180deg);
}
.section-body{
    overflow:hidden;
    color: #0F4C81;
}
.section-body p{
    color: #0F4C81;
    font-size: 16px;
    text-align: justify;
}
/* About */
.about img{
    /*max-width:200px;*/
}
/* Experience */
.exp-item{
    /*border-left:3px solid #0F4C81;*/
    /*padding-left:15px;*/
    margin-bottom:20px;
    display: flex;
}
.exp-item a{
    color: #0F4C81;
    text-decoration: underline;
    font-size: 17px;
}
.exp-item .col-md-3.e-l{
    text-align: start;
}
/* Projects */
.project-card{
    overflow:hidden;
    transition:.35s ease;
}
a{
    text-decoration: none;
}
.project-card strong{
    font-size: 17px;
    text-decoration: underline;
    color: #0F4C81;
}
.project-card p.first{
    padding-top: 10px;
}
.project-card .p-3{
    padding-left: 0 !important;
    padding-right: 0 !important;
}
.project-card:hover{
    transform:translateY(-6px);
}
.project-thumb{
    position:relative;
    overflow:hidden;
}
.project-thumb img{
    width:100%;
    transition:.4s ease;
}
.project-card:hover img{
    transform:scale(1.08);
}
.play-btn{
    position:absolute;
    inset:0;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:40px;
    color:white;
    background:rgba(0,0,0,.25);
    opacity:0;
    transition:.3s;
}
.project-card:hover .play-btn{
    opacity:1;
}
#projects{
    margin-bottom: 0 !important;
}
footer{
    padding: 10px 30px;
    font-size:16px;
    color:#0F4C81;
    justify-content: space-between;
    align-items: center;
    position:fixed;
    bottom:0;
    background: #F0EEE9;
    z-index:60;
    left:16.6666667%; /* đúng bằng col-lg-2 */
    right:0;
    border-top:1px solid #0F4C81;

}
footer p{
    font-style: italic;
    margin-bottom: 0;
}
footer .icon_social{
    display: grid;
    gap: 15px;
    grid-auto-flow: column;
}
footer .icon_social svg {
    width: 32px;
    height: 32px;
}

main.content{
    padding-bottom:60px;
}

/*hiệu ứng gradien sidebar*/
@keyframes decoIn{
    to{
        opacity:1;
        transform:scale(1) translateX(0);
    }
}
.sidebar{
    overflow:hidden;
}

.sidebar-deco{
    z-index: -1;
    position:absolute;
    width:300px;
    height: 350px;
    opacity:0;
    transform:scale(0.4) translateX(-60px);
    animation:decoIn 1.2s ease-out forwards;
    background: linear-gradient(178deg, rgba(238, 238, 238, 0.60) 32.85%, rgba(255, 190, 152, 0.60) 71.79%, rgba(255, 255, 243, 0.60) 110.73%);

    filter: blur(125.75px);
}
.sidebar-deco.deco-top{
    transform: rotate(133.7deg) !important;
}
.sidebar-deco.deco-bottom{
    transform: rotate(165.105deg) !important;
}

.deco-top{
    top:-60px;
    left:-80px;
    animation-delay:.2s;
}

.deco-bottom{
    bottom:-100px;
    left:-80px;
    animation-delay:.4s;
}



/* ================= MOBILE ================= */
@media (max-width: 991px){
    /* hide desktop sidebar */
    .sidebar{display:none;}
    footer{
        left:0;
    }
    .exp-item{
        flex-wrap: wrap;
        gap: 10px;
    }
    /* offcanvas sidebar */
    .mobile-sidebar{
        position:fixed;
        top:0; left:0;
        width: 80%;
        height:100vh;
        background:linear-gradient(180deg,#f3e7d9,#f8f6f2);
        z-index:2000;
        transform:translateX(-100%);
        transition:.35s ease;
        padding:24px 20px;
    }
    .mobile-sidebar.active{transform:translateX(0);}
    .mobile-overlay{
        position:fixed;
        inset:0;
        background:rgba(0,0,0,.35);
        z-index:1999;
        display:none;
    }
    .mobile-overlay.active{display:block;}

    .sidebar{
        position:relative;
        min-height:auto;
        border-right:none;
        border-bottom:1px solid #e5e5e5;
    }
    .logo{
        font-size:26px;
        text-align:center;
    }
    .introduce{
        padding: 0 20px 30px 0px;
    }
    .blog-list {
        padding: 30px 20px 30px 0;
    }
    .mobile-sidebar .t_t{
        border-bottom: 1px solid #0F4C81;
    }
    .logo{
        border-bottom: unset;
    }
    .content{
        padding:20px 16px;
    }
    .top-menu{
        background: #F0EEE9;
        display:flex;
        justify-content:space-between;
        gap:5px;
        overflow-x:auto;
        white-space:nowrap;
        padding:10px 0px;
        padding-left: 0 !important;
    }
    section#about, #experience, #projects{
        padding: 0;
    }
    .section-body{
        text-align: center;
    }
    .section-body p{
        text-align: justify;
    }
    #projects .row.g-5 .col-md-4{
        margin-top: 15px;
    }
    footer{
        flex-wrap: wrap;
        padding: 15px 0;
        flex-direction: column;
        gap: 15px;
    }
    .top-menu .nav-link{
        padding:6px 10px;
        border-radius:20px;
        background:#eee;
        font-size:14px;
    }
    .top-menu .nav-link.active{
        margin-right: 0 !important;
        background:#0F4C81;
        color:#fff;
    }
    h2.section-title{
        font-size:16px;
    }
    .about img{
        margin-bottom:12px;
    }
}