:root {
    --bg-color: #111122; 
    --text-color: #a3a3c2; 
    
   
    --main1-color: #00e5ff; 
    --main2-color: #ff3e7f;
    --main3-color: #8c7bff; 
    --main4-color: #22d3a7; 
    --main5-color: #ffd43b; 
}

.html-icon { color: #e44d26 !important; }
.css-icon { color: #1572b6 !important; }
.js-icon { color: #f7df1e !important; }
.fa-git-alt { color: #f05032 !important; }
.fa-bootstrap { color: #7952b3 !important; }

html{
    font-size: 62.5%;
    line-height: 1.6;
    font-family: 'Courier New', Courier, monospace;
    letter-spacing: 2px;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(135deg, #111122, #191933);
    color: var(--text-color);
}

*{
    box-sizing: inherit;
    padding: 0;
    margin: 0;
}

::selection {
    background-color: #00e5ff; 
    color: #000;              
}

::-moz-selection {
  background-color: var(--main2-color);
  color: white;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 6px;
}
::-webkit-scrollbar-thumb {
    background: #01aec1;
    border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--main3-color);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.progress-bar-custom {
    position: fixed;
    top: 0;
    left: 0;
    height: 5px;
    width: 0%;
    background: linear-gradient(80deg, #5cefff, #9900ff);
    z-index: 9999;
    transition: width 0.1s ease-out;
}

.main-container {
    max-width: 848px;
}
/* color */
.color-white{ color: #fff; }
.color-1{ color: var(--main1-color) !important; }
.color-3{ color: var(--main3-color) !important; }
.color-4{ color: var(--main4-color) !important; }

/* first popup */
.popupFirst-content {
    border: 1px solid rgba(123, 104, 238, 0.3);
    box-shadow: 
        0 0 40px rgba(0, 229, 255, 0.2), 
        0 0 20px rgba(123, 104, 238, 0.2), 
        0 0 60px rgba(255, 62, 127, 0.1);
    background: linear-gradient(135deg, rgba(25, 25, 45, 0.8), rgba(35, 35, 60, 0.9));
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 3rem 3.5rem;
    transform-origin: bottom;
    animation: entranceAnimation 0.7s cubic-bezier(0.17, 0.67, 0.21, 1.2);
}

@keyframes entranceAnimation {
    0% {
        transform: scale(0.7) translateY(50px);
        opacity: 0;
    }
    40% {
        transform: scale(1.03) translateY(-15px);
        opacity: 1;
    }
    70% {
        transform: scale(0.98) translateY(5px);
    }
    100% {
        transform: scale(1) translateY(0);
    }
}

.popupFirst-content h1 {
    font-size: 3.6rem;
    background: linear-gradient(90deg, var(--main1-color), var(--main3-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

.popupFirst-content p {
    font-size: 1.6rem;
    color: var(--text-color);
}

.popupFirst-content button {
    background: transparent;
    border: 2px solid var(--main1-color);
    color: var(--main1-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.8rem;
    position: absolute;
    top: 16px;
    right: 16px;
    transition: all 0.3s;
}
.popupFirst-content button:hover {
    background: var(--main1-color);
    color: #111122;
    transform: rotate(90deg);
}

/* Header */
.header{
    margin-top: 40px;
}

.header-avatar-container {
    position: relative;
    width: 85px;
    height: 85px;
    margin: 8px;
    flex-shrink: 0;
}

.header-avatar-container .header__name-avt {
    margin: 0;
    width: 105%;
    height: 105%;
    border-radius: 50%;
}

.header-avatar-container .header-avatar-frame {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 125%; 
    height: 125%;
    pointer-events: none;
}

.header__name-group1{
    margin: 0 8px;
}
.header__name-hidden,.header__name-default{
    font-size: 3.6rem;
    font-weight: bold;
    color: var(--main1-color);
    text-shadow: 3px 3px 20px var(--shadow1-color);
}

.header__name-hidden:hover ,.header__name-default:hover{
    background: linear-gradient(80deg, #00ffaa, #7300ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header__name-hidden{
    display: none;
}

.header__name-slogan{
    font-size: 1.4rem;
}

#slogan-typewriter {
    color: var(--text-color); 
    min-height: 1.3em; 
    display: inline-block;
}

#slogan-typewriter::after {
    content: '|';
    margin-left: 5px;
    color: var(--text-color); 
    animation: blink 0.7s infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

.header__name-tags{
    list-style: none;
    display: flex;
    margin: 8px 0 0;
}

.header__name-tag-item1, .header__name-tag-item2, 
.header__name-tag-item3, .header__name-tag-item4{
    border-radius: 20px;
    padding: 4px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.2rem; 
    margin: 2px 4px;
}
.header__name-tag-item1{
    color: var(--main1-color);
    background-color: var(--main1-rgba-color);
    border: 1px solid var(--main1-color);
}
.header__name-tag-item2{
    background-color: var(--main2-rgba-color);
    color: var(--main2-color);
    border: 1px solid var(--main2-color);
}
.header__name-tag-item3{
    background-color: var(--main3-rgba-color);
    color: var(--main3-color);
    border: 1px solid var(--main3-color);
}
.header__name-tag-item4{
    background-color: var(--main4-rgba-color);
    color: var(--main4-color);
    border: 1px solid var(--main4-color);
}

.header__name-socials{
    list-style: none;
    margin: 16px 0;
    display: flex;
}

.header__name-social-item-link{
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 28px;
    height: 28px;
    margin: 12px;
    transition: transform ease-in .15s, box-shadow ease-in .15s;
    border-radius: 50%;
}

.header__name-social-item-link:hover{
    transform: scale(1.2);
    box-shadow: 0 5px 12px var(--shadow1-color);
}

.header__name-social-item-img{
    width: 100%;
    height: 100%;
}

/* Card box */
.card-box{
    border: none;
    background: rgba(25, 25, 50, 0.7);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    padding: 24px;
    border-radius: 16px;
    transition: transform 0.3s, box-shadow 0.3s;
}
.card-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 229, 255, 0.15);
}

.card-box__header{
    display: flex;
    position: relative;
}
.card-box__header--close-card-mini,
.card-box__header--open-card-mini {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--main1-color);
    cursor: pointer;
    position: absolute;
    top: 0;
    right: 0;
}

.card-box__header-icon{
    background-color: var(--main1-rgba-color);
    color: var(--main1-color);
    border-radius: 5px;
    padding: 8px;
    font-size: 1rem;
    display: flex;
    justify-self: center;
    align-items: center;
    margin-right: 4px;
}

.card-box__header-icon svg{ font-size: 1rem; }

.card-box__heading{
    text-align: center;
    text-transform: uppercase;
    font-size: 1.8rem;
    color: var(--main1-color);
    margin-left: 4px;
}
.card-box__time{
    display: block;
    margin: 12px 0;
    font-size: 1.3rem;
}

.card-box__header--close-card-mini {
    position: absolute;
    top: 40%;
    right: 16px;
    transform: translateY(-50%) rotate(0deg);
    transition: transform 0.3s ease-in-out;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    color: var(--main1-color);
    padding: 0; 
    margin: 0;
}

.card-box__header.collapsed .card-box__header--close-card-mini {
    transform: translateY(-50%) rotate(180deg);
}


/* Thuộc tính chung cho tất cả các card */
.card-mini1, .card-mini2, .card-mini3, .card-mini4 {
    border-radius: 12px;
    padding: 16px;
    background: rgba(25, 25, 50, 0.7);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.card-mini1:hover, .card-mini2:hover, .card-mini3:hover, .card-mini4:hover {
    transform: translateY(-5px);
}

/* Hiệu ứng glow subtle khi hover */
.card-mini1:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 7px;
    background: linear-gradient(90deg, transparent, var(--main2-color), transparent);
    animation: glowScan 2s infinite;
}
.card-mini2:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 7px;
    background: linear-gradient(90deg, transparent, var(--main1-color), transparent);
    animation: glowScan 2s infinite;
}
.card-mini3:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 7px;
    background: linear-gradient(90deg, transparent, var(--main1-color), transparent);
    animation: glowScan 2s infinite;
}
.card-mini4:hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 7px;
    background: linear-gradient(90deg, transparent, var(--main2-color), transparent);
    animation: glowScan 2s infinite;
}

.card-mini__header-ul{
    display: flex;
    justify-content: space-between;
    margin: 0 0 8px 0;
    padding-left: 0;
}

/* Các thuộc tính riêng về màu sắc */
.card-mini1 {
    border: 2px solid var(--main1-rgba-color);
    border-top: 5px solid var(--main1-color);
}
.card-mini2 {
    border: 2px solid var(--main2-rgba-color);
    border-top: 5px solid var(--main2-color);
}
.card-mini3 {
    border: 2px solid var(--main3-rgba-color);
    border-top: 5px solid var(--main3-color);
}
.card-mini4 {
    border: 2px solid var(--main4-rgba-color);
    border-top: 5px solid var(--main4-color);
}

/* Các thuộc tính riêng về màu chữ số */
.card-mini1__body-num, .card-mini1__footer-num { 
    color: var(--main1-color);
}
.card-mini2__body-num, .card-mini2__footer-num { 
    color: var(--main2-color);
}
.card-mini3__body-num, .card-mini3__footer-num { 
    color: var(--main3-color);
}
.card-mini4__body-num, .card-mini4__footer-num { 
    color: var(--main4-color);
}

/* Giữ lại các style chung cho body và footer của card */
.card-mini__body-num {
    font-size: 3.5rem;
    line-height: 4rem;
    font-weight: bold;
}
.card-mini__body-desc { font-size: 1.4rem; }

.card-mini__footer {
    display: flex;
    justify-content: space-between;
    margin-top: 16px;
}
.card-mini__footer-heading { font-size: 1.2rem; }
.card-mini1__footer-num, .card-mini2__footer-num, .card-mini3__footer-num, .card-mini4__footer-num {
    font-size: 1.3rem;
    font-weight: 600;
}

@media (min-width: 768px) {
    .card-box__card-mini .row > .col-md-6 {
        display: flex;
    }
    .card-mini1, .card-mini2, .card-mini3, .card-mini4 {
        display: flex;
        flex-direction: column;
        width: 100%; 
    }
    .card-mini__body {
        flex-grow: 1;
    }
}

/* quick summary */
.card-box__quick-summary{
    background-color: var(--main3-rgba-color);
    border: 1px solid var(--main3-color);
    border-radius: 5px;
    padding: 12px;
    margin-top: 36px;
}
.quick-summary__heading{
    display: flex;
    align-items: center;
    color: var(--main3-color);
    font-size: 1.6rem;
}
.quick-summary__heading i{ margin-right: 8px; }
.quick-summary__about{
    font-size: 1.5rem;
    margin-bottom: 24px;
}
/* Activity timline */
.activity-timeline{ margin-top: 36px; }
.activity-timeline__header{
    display: flex;
    justify-content: space-between;
    color: var(--main3-color);
    margin-bottom: 8px;
}
.activity-timeline__head{ font-size: 1.6rem; }
.activity-timeline__head-btn{
    background-color: var(--main3-rgba-color);
    color: var(--main3-color);
    border: 1px solid var(--main3-color);
    outline: none;
    padding: 4px 12px;
    font-size: 1.2rem;
    text-align: center;
    border-radius: 5px;
}
.activity-timeline__body{
    background-color: rgba(120, 104, 238, .05);
    border: 1px solid var(--main3-rgba-color);
    padding: 8px;
    border-radius: 5px;
    height: 80px;
}
.activity-timeline__body svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.activity-timeline__body-text{
    margin-top: 8px;
    display: flex;
    justify-content: space-between;
    color: #fff;
}

/* Content information */
.infor-about, .infor-communities, .infor-projects, .infor-certificates, .infor-devsetup {
    margin: 40px 0 4px 0;
    padding: 4px 4px 4px 16px;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}
.infor-about.is-visible, .infor-communities.is-visible, .infor-projects.is-visible, .infor-certificates.is-visible, .infor-devsetup.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.about-line-left{ position: absolute; top: 0; left: 0; width: 4px; height: 100%; border-radius: 5px; background-color: var(--main2-color); opacity: 0.5; }
.about-title{ display: inline-flex; align-items: center; color: var(--main2-color); font-size: 2.4rem; position: relative; margin-bottom: 8px; }
.about-title i{ font-size: 2rem; margin-right: 6px; }
.about-title__head{ font-weight: bold; }
.about-title__tag{ border: none; margin-left: 12px; padding: 4px ; font-size: 1.2rem; line-height: 1.2rem; text-transform: lowercase; font-weight: bold; }
.about-content__header{ display: flex; justify-content: space-between; align-items: center; width: 100%; height: 80px; }
.about-content__group1{ display: flex; flex: 1; align-items: center; }
.about-content__header-avt{ 
    width: 72px; 
    height: 72px; 
    margin: 4px 12px 4px 4px; 
    border: 3px solid var(--main4-color); 
    border-radius: 50%; 
    box-shadow: 0 0 5px #fff, 0 0 10px var(--main4-color), 0 0 10px var(--main4-color);
    object-fit: cover; 
    animation: blob-animation 8s infinite linear;
    transition: border-radius 0.1s ease;
}

@keyframes blob-animation {
    0% {
        border-radius: 60% 50% 40% 70% / 60% 40% 80% 50%;
    }
    25% {
        border-radius: 40% 60% 70% 30% / 50% 70% 40% 50%;
    }
    50% {
        border-radius: 70% 30% 50% 50% / 60% 40% 60% 30%;
    }
    75% {
        border-radius: 40% 50% 30% 60% / 70% 50% 60% 40%;
    }
    100% {
        border-radius: 60% 50% 40% 70% / 60% 40% 80% 50%;
    }
}

.about-content__heading{ font-size: 2.4rem; border-bottom: 1px dashed var(--main1-color); color: var(--main1-color); }
.about-content__birthday{ font-size: 1.4rem; }
.about-content__btn{ 
    color: var(--main1-color);
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.3);
    border-radius: 30px;
    padding: 8px 16px;
    font-size: 1.4rem;
    font-weight: 500;
    margin: 0 8px;
    height: 40px;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center; 
}
.about-content__btn:hover {
    background: rgba(0, 229, 255, 0.2);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
    transform: translateY(-3px);
}
.about-content__btn i {
    margin-right: 8px;
}
.about-content__btn a{
    color: var(--main1-color);
    text-decoration: none;
}
.about-content__preface{ font-size: 1.4rem; margin: 8px 0 0 28px; color: #fff; }
.about-content__container-group1{ margin: 8px 0 0 38px; position: relative; font-size: 1.3rem; }
.about-content__group1-line-left{ position: absolute; top: 0; left: -1rem; width: 1.5px; height: 100%; border-radius: 5px; background-color: var(--main1-color); opacity: 0.5; }
.about-content__desc{ font-size: 1.4rem; margin-top: 16px; color: #fff; }
.about-content__desc span{ color: var(--main1-color); }
.about-content__box{ display: flex; width: 100%; margin: 24px 0; }
.about-content__box-content{ 
    width: 25%; 
    font-size: 1.4rem; 
    font-weight: bold; 
    margin: 0 12px; padding: 8px; 
    border-radius: 5px; 
    transition: transform ease-out.2s; 
    background-color: rgba(255, 255, 255, 0.03);
}

.about-content__box-content:hover{
    border: 1px solid var(--main4-color);
    box-shadow: 0 0 3px #fff, 0 5px 8px var(--main4-color), 0 5px 8px var(--main4-color); 
    transform: translateY(-8px); 
    cursor: pointer;
}
.about-content__box-head{ display: flex; justify-content: space-between; }
.about-content__box-head i{ color: var(--main1-color); }
.about-content__box-num{ color: var(--main1-color); font-size: 1.4rem; margin-top: 8px; }

.about-hobbies {
    margin-top: 24px;
}

.about-hobbies__title {
    width: 50px;
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 12px;
    transition: text-shadow 0.2s ease;
}

.about-hobbies__title:hover{
    text-shadow: 0 3px 3px var(--main4-color);
}

.about-hobbies__list {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
}

.about-hobbies__list-item {
    font-size: 1.4rem;
    font-weight: bold;
    padding: 6px 12px;
    margin: 4px;
    border-radius: 5px;
    display: inline-flex;
    align-items: center;
    border: 2px solid transparent; 
    border-radius: 30px;
    transition: border-color 0.2s ease-in-out, transform 0.2s ease-in;
}

.about-hobbies__list-item i {
    margin-right: 8px;
}

/* Hiệu ứng viền khi hover theo từng màu */
.about-hobbies__list-item.color-1:hover {
    transform: translateY(-12%);
    border-color: var(--main1-color);
}
.about-hobbies__list-item.color-2:hover {
    transform: translateY(-12%);
    border-color: var(--main2-color);
}
.about-hobbies__list-item.color-3:hover {
    transform: translateY(-12%);
    border-color: var(--main3-color);
}
.about-hobbies__list-item.color-4:hover {
    transform: translateY(-12%);
    border-color: var(--main4-color);
}
.about-hobbies__list-item.color-5:hover {
    transform: translateY(-12%);
    border-color: var(--main5-color);
}

/* popup about-content__box */
.custom-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    padding: 24px; 
    backdrop-filter: blur(8px);
    background-color: rgba(0,0,0,0.6);
}

.custom-overlay__content {
    background: rgba(25, 25, 45, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(123, 104, 238, 0.2);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.custom-overlay__close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.custom-overlay__close:hover,
.custom-overlay .custom-overlay__close:hover {
    background-color: var(--main1-color);
    color: #111122;
    box-shadow: 0 0 15px var(--main1-color);
    cursor: pointer;
}

.popup-details {
    text-align: left;
    font-size: 1.5rem;
    padding: 32px;
    max-width: 500px;
    width: 100%;
    color: var(--text-color);
    line-height: 1.6;
    position: relative;
}

.popup-details h3 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--main1-color), var(--main3-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
    position: relative;
    padding-bottom: 12px;
}

.popup-details h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--main1-color), var(--main3-color));
    border-radius: 3px;
}

.popup-details h5 {
    font-size: 1.8rem;
    font-weight: 500;
    color: #d5d5e4;
    margin-bottom: 20px;
    line-height: 1.5;
}

.popup-details p {
    margin-bottom: 16px;
}

.popup-details ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 20px;
}

.popup-details li {
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
    display: flex;
    align-items: center;
}

.popup-details i {
    margin-right: 12px;
    font-size: 1.8rem;
}

.popup-details a{
    text-decoration: none;
    color: var(--main1-color);
    transition: all 0.3s;
    font-weight: 500;
}

.popup-details a:hover{
    text-decoration: underline;
    color: #fff;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
}

/* Popup technologies styling */
#popup-technologies {
    color: var(--main3-color);
}

#popup-technologies li {
    background-color: rgba(140, 123, 255, 0.08);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 10px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    border-left: 3px solid var(--main3-color);
}

#popup-technologies i {
    width: 30px;
    text-align: center;
    font-size: 2.2rem;
}

#popup-technologies li p{
    color: #fff;
    margin: 0;
    font-weight: 500;
}

#popup-technologies li:hover {
    background-color: rgba(140, 123, 255, 0.15);
    transform: translateX(5px);
}

/* Popup experience styling */
#popup-experience {
    color: var(--main5-color);
    text-align: center;
}

#popup-experience h3 {
    margin-left: auto;
    margin-right: auto;
}

#popup-experience h3::after {
    left: 50%;
    transform: translateX(-50%);
}

#popup-experience p {
    font-size: 1.6rem;
    line-height: 1.7;
}

/* Communities infor */
.infor-communities{ margin: 16px 0; padding-bottom: 24px;}
.communities-line-left{ position: absolute; top: 0; left: 0; width: 4px; height: 100%; border-radius: 5px; background-color: var(--main3-color); opacity: 0.5; }
.communities-title__tag{ background-color: var(--main3-rgba-color); color: var(--main3-color); border: none; margin-left: 12px; padding: 4px; font-size: 1.2rem; line-height: 1.2rem; text-transform: lowercase; font-weight: bold; }
.communities-title{ color: var(--main3-color); display: flex; align-items: center; position: relative; margin-bottom: 8px; }
.communities-title__head{ font-size: 2.4rem; font-weight: bold; }
.communities-title i{ font-size: 2rem; margin-right: 6px; }
.communities-content__list{ list-style: none; }
.communities-content__list-item{ border: 1px solid var(--main3-color); border-radius: 5px; padding: 8px; display: flex; flex-wrap: wrap; margin: 8px 0; font-size: 1.4rem; text-align: center; }
.communities-content__list-item a{ text-decoration: none; }
.communities-content__list-item a:hover{ text-decoration: underline; }
.communities-content__list-item i{ margin: 6px; }
.communities-content__list-item i:hover{ color: #fff; }
.communities-content__list-item-content{ text-align: left; }

/* Projects infor */
.infor-projects{ margin: 16px 0; padding-bottom: 24px;}
.projects-line-left{ position: absolute; top: 0; left: 0; width: 4px; height: 100%; border-radius: 5px; background-color: var(--main1-color); opacity: 0.5; }
.projects-title__tag{ background-color: var(--main1-rgba-color); color: var(--main1-color); border: none; margin-left: 12px; padding: 4px; font-size: 1.2rem; line-height: 1.2rem; text-transform: lowercase; font-weight: bold; }
.projects-title{ color: var(--main1-color); display: flex; align-items: center; position: relative; margin-bottom: 8px; }
.projects-title__head{ font-size: 2.4rem; font-weight: bold; }
.projects-title i{ font-size: 2rem; margin-right: 6px; }
.projects-content__list{ font-size: 1.3rem; }
.projects-content__list-item{ margin-left: 12px; font-weight: bold; list-style-type: disc; }

/* certificates infor */
.certificates-line-left{ position: absolute; top: 0; left: 0; height: 100%; width: 4px; border-radius: 3px; background-color: var(--main4-color); opacity: .5; }
.certificates-title{ display: flex; color: var(--main4-color); font-size: 2.4rem; font-weight: bold; align-items: center; }
.certificates-title__head{ margin: 0 12px 0 6px; }
.certificates-title__tag{ border: none; text-transform: lowercase; }
.certificates-content__card{ margin: 16px 16px 0 0; padding: 10px; border: 1px solid var(--main4-rgba-color); border-radius: 5px; transition: transform .2s ease-in, background-color .2s ease-in, box-shadow .2s ease-in; }
.certificates-content__card:hover { transform: translateY(-5px); background-color: rgba(255, 255, 255, 0.05); box-shadow: 0 0 3px var(--main4-color); }
.certificates-content__card-head p{ font-size: 2rem; display: flex; align-items: center; }
.certificates-content__card-head span{ display: inline-flex; margin-top: 6px; }
.certificates-content__card-head svg{ background-color: var(--main4-rgba-color); padding: 8px; border-radius: 5px; margin-right: 4px; }
.certificates-content__none{ text-align: center; font-size: 2rem; font-weight: bold; color: var(--main4-color); padding-bottom: 21px; }
.certificates-content{ text-align: center; font-size: 2rem; font-weight: bold; color: var(--main4-color); }
.line-bar{ height: 5px; width: 70%; margin: 12px auto 4px; border-radius: 3px; background: linear-gradient(80deg, #5cefff, #9900ff); }

/* Dev setup infor */
.devsetup-line-left{ position: absolute; top: 0; left: 0; height: 100%; width: 4px; border-radius: 3px; background-color: var(--main3-color); opacity: .5; }
.devsetup-title{ display: flex; align-items: center; font-size: 2.4rem; font-weight: bold; color: var(--main3-color); }
.devsetup-title p{ margin: 0 12px 0 6px; }
.devsetup-title span{ border: none; text-transform: lowercase; font-weight: bold; }
.devsetup-content__card{ margin: 16px 16px 0 0; padding: 10px; border: 1px solid var(--main3-rgba-color); border-radius: 5px; transition: transform .2s ease-in, background-color .2s ease-in, box-shadow .2s ease-in; }
.devsetup-content__card:hover{ transform: translateY(-5px); background-color: rgba(255, 255, 255, 0.05); box-shadow: 0 0 3px var(--main3-color); }
.devsetup-content__card-head{ display: flex; align-items: center; font-size: 1.4rem; }
.devsetup-content__card-list{ list-style: none; min-height: 244px; font-size: 1.6rem; }
.devsetup-content__card-item{ display: flex; align-items: self-start; margin: 8px 0; }
.devsetup-content__card-item p:first-child{ display: inline-flex; align-items: center; white-space: nowrap; }
.devsetup-content__card-item p:first-child i{ margin-right: 4px; }
.devsetup-content__card-item p:last-child{ margin-left: 8px; }

/* footer */
.footer{ position: relative; }
.footer-box{ margin: 24px 0; display: flex; justify-content: center; padding: 5px 16px; border: 2px solid var(--main1-rgba-color); border-radius: 5px; }
.footer-box svg{ margin: 0 12px; }
.footer-end{ 
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    margin: 24px 0; 
}
.footer-end span{ 
    color: #fff; 
}
.footer-end p{ font-size: 1.4rem; color: #fff; }
.footer__name-tag-item{ background-color: var(--main1-rgba-color); color: var(--main1-color); border: 1px solid var(--main1-color); border-radius: 20px; padding: 0 12px; text-align: center; font-size: 1.3rem;}

/* Audio Control */
.audio-control {
    position: fixed;
    right: 0;
    bottom: 40px; 
    z-index: 999;
    display: flex;
    flex-direction: row-reverse;
    transition: transform 0.4s cubic-bezier(0.17, 0.67, 0.21, 1.2);
}

.audio-control__toggle {
    position: relative;
    z-index: 1001;
}

.audio-control__toggle-btn {
    width: 50px;
    height: 50px;
    border-radius: 50% 0 0 50%;
    background: var(--main1-color);
    border: none;
    color: #151525;
    font-size: 1.6rem;
    cursor: pointer;
    box-shadow: -2px 2px 10px rgba(0, 229, 255, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    outline: none;
}

.audio-control__toggle-btn:hover {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--main1-color), var(--main3-color));
}

.audio-control__toggle-btn i {
    animation: pulse 1.5s infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.2); }
}

.audio-control__panel {
    width: 270px;
    max-height: 400px;
    overflow-y: auto;
    background: linear-gradient(135deg, rgba(25, 25, 45, 0.95), rgba(20, 20, 40, 0.95));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(123, 104, 238, 0.3);
    border-radius: 16px 0 0 16px;
    padding: 18px;
    transform: translateX(120%); /* Ẩn panel sang bên phải */
    transition: transform 0.4s cubic-bezier(0.17, 0.67, 0.21, 1.2);
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
    position: absolute;
    right: 55px;
    bottom: 0;
}

.audio-control.active .audio-control__panel {
    transform: translateX(0); /* Hiện panel khi active */
}

.audio-control__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    color: #fff;
}

.audio-control__header h4 {
    font-size: 1.6rem;
    margin: 0;
    background: linear-gradient(90deg, var(--main1-color), var(--main3-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.audio-control__close-btn {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.8rem;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
}

.audio-control__close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

.audio-control__track {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
}

.audio-control__track-info {
    flex: 1;
    color: #fff;
}

.audio-control__track-name {
    font-size: 1.6rem;
    font-weight: bold;
    margin: 0 0 4px 0;
    color: var(--main1-color);
}

.audio-control__track-artist {
    font-size: 1.2rem;
    margin: 0;
    opacity: 0.8;
}

.audio-control__track-image {
    width: 60px;
    height: 60px;
    margin-left: 10px;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.audio-control__track-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.audio-control__progress {
    margin-bottom: 16px;
}

.audio-control__progress-bar {
    height: 5px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    position: relative;
    cursor: pointer;
    margin-bottom: 5px;
}

.audio-control__progress-current {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--main1-color), var(--main3-color));
    border-radius: 5px;
}

.audio-control__progress-current::after {
    content: '';
    position: absolute;
    right: -5px;
    top: -3px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
    transform: scale(0);
    transition: transform 0.2s;
}

.audio-control__progress-bar:hover .audio-control__progress-current::after {
    transform: scale(1);
}

.audio-control__time {
    display: flex;
    justify-content: space-between;
    font-size: 1.1rem;
    color: var(--text-color);
}

.audio-control__controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.audio-control__btn {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.4rem;
    cursor: pointer;
    transition: all 0.2s;
}

.audio-control__btn:hover {
    color: #fff;
    transform: scale(1.1);
}

.audio-control__play-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--main1-color), var(--main3-color));
    border: none;
    color: #151525;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

.audio-control__play-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
}

.audio-control__volume {
    display: flex;
    align-items: center;
    width: 100px;
}

.audio-control__volume i {
    color: var(--text-color);
    font-size: 1.4rem;
    margin-right: 8px;
}

.audio-control__volume input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 70px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    outline: none;
}

.audio-control__volume input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--main1-color);
    cursor: pointer;
    transition: all 0.2s;
}

.audio-control__volume input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: #fff;
}

/* Audio playlist styling */
.audio-control__playlist {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.audio-control__playlist h5 {
    color: var(--main1-color);
    margin-bottom: 10px;
    font-size: 1.4rem;
}

.audio-control__playlist-items {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 150px;
    overflow-y: auto;
}

.audio-control__playlist-item {
    padding: 8px 10px;
    margin-bottom: 4px;
    font-size: 1.3rem;
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.audio-control__playlist-item:hover {
    background: rgba(0, 229, 255, 0.1);
    color: #fff;
    transform: translateX(5px);
}

.audio-control__playlist-item.active {
    background: rgba(0, 229, 255, 0.2);
    color: var(--main1-color);
    font-weight: 500;
    border-left: 3px solid var(--main1-color);
    padding-left: 12px;
}

.audio-control__playlist-items::-webkit-scrollbar {
    width: 4px;
}

.audio-control__playlist-items::-webkit-scrollbar-track {
    background: transparent;
}

.audio-control__playlist-items::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.audio-control__playlist-items::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 229, 255, 0.3);
}

@media (max-width: 767.98px) {
    .header__name-tags{
        flex-wrap: wrap;
    }
    .header__name-social-item-link{
        width: 25px;
        height: 25px;
        margin: 8px;
    }
    .card-box{
        margin: 8px 12px;
    }
    .about-content__header{
        margin-top: 24px;
        flex-direction: column;
    }
    .about-content__container{
        margin-top: 32px;
    }
    .about-content__box{
        flex-wrap: wrap;
    }
    .about-content__box-content{
        width: min-content;
        margin-right: 16px;
        margin-bottom: 12px;
    }
    .about-content__box-content i{
        margin-left: 12px;
    }
    .about-content__btn-group{
        margin: 16px 0;
    }
    .about-content__container{
        margin-top: 52px;
    }
    .play-audio-btn {
        bottom: 60px;
        right: 20px;
    }

    .audio-control {
        /* Chuyển vị trí xuống dưới để không che các thành phần khác */
        bottom: 20px;
        top: auto;
        /* Đảm bảo z-index thích hợp */
        z-index: 999;
    }

    .audio-control__panel {
        /* Thu nhỏ panel trên mobile */
        width: 270px;
        max-height: 400px;
        overflow-y: auto;
        /* Điều chỉnh hiển thị từ dưới lên */
        transform: translateY(100%);
    }

    .audio-control.active .audio-control__panel {
        transform: translateY(0);
    }

    /* Audio player mobile adjustments */
    .audio-control {
        bottom: 20px;
        right: 0;
    }
    
    .audio-control__panel {
        width: 250px;
        max-height: 85vh;
        overflow-y: auto;
        padding: 12px;
        transform: translateX(120%); /* Giữ nhất quán với desktop */
    }
    
    .audio-control.active .audio-control__panel {
        transform: translateX(0); /* Giữ nhất quán với desktop */
    }
}

/* Fix các vấn đề khác về z-index */
.header, .card-box, .infor {
    position: relative;
    z-index: 1;
}