:root {
    /**
   * colors
   */

    /* gradient */

    --bg-gradient-onyx: linear-gradient(to bottom right, hsl(240, 1%, 25%) 3%, hsl(0, 0%, 19%) 97%);

    --bg-gradient-jet: linear-gradient(
            to bottom right,
            hsla(240, 1%, 18%, 0.251) 0%,
            hsla(240, 2%, 11%, 0) 100%
        ),
        hsl(240, 2%, 13%);

    --bg-gradient-yellow-1: linear-gradient(
        to bottom right,
        hsl(45, 100%, 71%) 0%,
        hsla(36, 100%, 69%, 0) 50%
    );

    --bg-gradient-yellow-2: linear-gradient(
            135deg,
            hsla(45, 100%, 71%, 0.251) 0%,
            hsla(35, 100%, 68%, 0) 59.86%
        ),
        hsl(240, 2%, 13%);

    --border-gradient-onyx: linear-gradient(
        to bottom right,
        hsl(0, 0%, 25%) 0%,
        hsla(0, 0%, 25%, 0) 50%
    );

    --text-gradient-yellow: linear-gradient(to right, hsl(45, 100%, 72%), hsl(35, 100%, 68%));

    /* solid */

    --jet: hsl(0, 0%, 22%);
    --onyx: hsl(240, 1%, 17%);
    --eerie-black-1: hsl(240, 2%, 13%);
    --eerie-black-2: hsl(240, 2%, 12%);
    --smoky-black: hsl(0, 0%, 7%);
    --white-1: hsl(0, 0%, 100%);
    --white-2: hsl(0, 0%, 98%);
    --orange-yellow-crayola: hsl(45, 100%, 72%);
    --vegas-gold: hsl(45, 54%, 58%);
    --light-gray: hsl(0, 0%, 84%);
    --light-gray-70: hsla(0, 0%, 84%, 0.7);
    --bittersweet-shimmer: hsl(0, 43%, 51%);

    /**
   * typography
   */

    /* font-family */
    --ff-poppins: "Poppins", sans-serif;

    /* font-size */
    --fs-1: 24px;
    --fs-2: 18px;
    --fs-3: 17px;
    --fs-4: 16px;
    --fs-5: 15px;
    --fs-6: 14px;
    --fs-7: 13px;
    --fs-8: 11px;

    /* font-weight */
    --fw-300: 300;
    --fw-400: 400;
    --fw-500: 500;
    --fw-600: 600;
    /**
   * shadow
   */

    --shadow-1: -4px 8px 24px hsla(0, 0%, 0%, 0.25);
    --shadow-2: 0 16px 30px hsla(0, 0%, 0%, 0.25);
    --shadow-3: 0 16px 40px hsla(0, 0%, 0%, 0.25);
    --shadow-4: 0 25px 50px hsla(0, 0%, 0%, 0.15);
    --shadow-5: 0 24px 80px hsla(0, 0%, 0%, 0.25);

    /**
    * transition
    */

    --transition-1: 0.25s ease;
    --transition-2: 0.5s ease-in-out;
}

/* reset */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a {
    text-decoration: none;
}

li {
    list-style: none;
}

img,
ion-icon,
a,
button,
time,
span {
    display: block;
}

button {
    font: inherit;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
}

input,
textarea {
    display: block;
    width: 100%;
    background: none;
    font: inherit;
}

::selection {
    background: var(--orange-yellow-crayola);
    color: var(--smoky-black);
}

:focus {
    outline-color: var(--orange-yellow-crayola);
}

html {
    font-family: var(--ff-poppins);
}

body {
    background: var(--smoky-black);
}

/* reused style */

.sidebar,
article {
    background: var(--eerie-black-2);
    border: 1px solid var(--jet);
    border-radius: 20px;
    padding: 15px;
    box-shadow: var(--shadow-1);
    z-index: 1;
}

.separator {
    width: 100%;
    height: 1px;
    background: var(--jet);
    margin: 16px 0;
}

.icon-box {
    position: relative;
    background: var(--border-gradient-onyx);
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    color: var(--orange-yellow-crayola);
    box-shadow: var(--shadow-1);
    z-index: 1;
}

.icon-box::before {
    content: "";
    position: absolute;
    inset: 1px;
    background: var(--eerie-black-1);
    border-radius: inherit;
    z-index: -1;
}

.icon-box ion-icon {
    --ionicon-stroke-width: 35px;
}

article {
    display: none;
}

article.active {
    display: block;
    animation: fade 0.5s ease backwards;
}

@keyframes fade {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.h2,
.h3,
.h4,
.h5 {
    color: var(--white-2);
    text-transform: capitalize;
}

.h2 {
    font-size: var(--fs-1);
}

.h3 {
    font-size: var(--fs-2);
}

.h4 {
    font-size: var(--fs-4);
}

.h5 {
    font-size: var(--fs-7);
    font-weight: var(--fw-500);
}

.article-title {
    position: relative;
    padding-bottom: 7px;
}

.article-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 3px;
    background: var(--text-gradient-yellow);
    border-radius: 3px;
}

.has-scrollbar::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

.has-scrollbar::-webkit-scrollbar-track {
    background: var(--onyx);
    border-radius: 5px;
}

.has-scrollbar::-webkit-scrollbar-thumb {
    background: var(--orange-yellow-crayola);
    border-radius: 5px;
}

.has-scrollbar::-webkit-scrollbar-button {
    width: 20px;
}

.content-card {
    position: relative;
    background: var(--border-gradient-onyx);
    padding: 15px;
    padding-top: 45px;
    border-radius: 14px;
    box-shadow: var(--shadow-2);
    cursor: pointer;
    z-index: 1;
}

.content-card::before {
    content: "";
    position: absolute;
    inset: 1px;
    background: var(--bg-gradient-jet);
    border-radius: inherit;
    z-index: -1;
}

/* main */

main {
    margin: 15px 12px;
    margin-bottom: 75px;
    min-width: 259px;
}

/* sidebar */

.sidebar {
    margin-bottom: 15px;
    max-height: 112px;
    overflow: hidden;
    transition: var(--transition-2);
}

.sidebar.active {
    max-height: 405px;
}

.sidebar-info {
    position: relative;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 15px;
}

.avatar-box {
    background: var(--bg-gradient-onyx);
    border-radius: 20px;
}

.info-content .name {
    color: var(--white-2);
    font-size: var(--fs-3);
    font-weight: var(--fw-500);
    letter-spacing: -0.25px;
    margin-bottom: 10px;
}

.info-content .title {
    color: var(--white-1);
    background: var(--onyx);
    font-size: var(--fs-8);
    font-weight: var(--fw-300);
    width: max-content;
    padding: 3px 12px;
    border-radius: 8px;
}

.info_more-btn {
    position: absolute;
    top: -15px;
    right: -15px;
    border: 0 15px;
    font-size: 13px;
    color: var(--orange-yellow-crayola);
    background: var(--bg-gradient-onyx);
    padding: 10px;
    box-shadow: var(--shadow-2);
    transition: var(--transition-1);
    z-index: 1;
}

.info_more-btn::before {
    content: "";
    position: absolute;
    inset: 1px;
    border-radius: inherit;
    background: var(--bg-gradient-jet);
    transition: var(--transition-1);
    z-index: -1;
}

.info_more-btn:hover,
.info_more-btn:focus {
    background: var(--bg-gradient-yellow-1);
}

.info_more-btn:hover::before,
.info_more-btn:focus::before {
    background: var(--bg-gradient-yellow-2);
}

.info_more-btn span {
    display: none;
}

.sidebar-info_more {
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-2);
}

.sidebar.active .sidebar-info_more {
    opacity: 1;
    visibility: visible;
}

.contacts-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.contact-item {
    min-width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-info {
    max-width: calc(100% - 46px);
    width: calc(100% - 46px);
}

.contact-title {
    color: var(--light-gray-70);
    font-size: var(--fs-8);
    text-transform: uppercase;
    margin-bottom: 2px;
}

.contact-info :is(.contact-link, time, address) {
    color: var(--white-2);
    font-size: var(--fs-7);
}

.contact-info address {
    font-style: normal;
}

.social-list {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 15px;
    padding-bottom: 4px;
    padding-left: 7px;
}

.social-item .social-link {
    color: var(--light-gray-70);
    font-size: 18px;
}

.social-item .social-link:hover {
    color: var(--light-gray);
}

/* navbar */

.navbar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: hsla(240, 1%, 17%, 0.75);
    backdrop-filter: blur(10px);
    border: 1px solid var(--jet);
    border-radius: 12px 12px 0 0;
    box-shadow: var(--shadow-2);
    z-index: 5;
}

.navbar-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    padding: 0 10px;
}

.navbar-link {
    color: var(--light-gray);
    font-size: var(--fs-8);
    padding: 20px 7px;
    transition: color var(--transition-1);
}

.navbar-link:hover {
    color: var(--light-gray-70);
}

.navbar-link.active {
    color: var(--orange-yellow-crayola);
}

/* About */

.about .article-title {
    margin-bottom: 15px;
}

.about-text {
    color: var(--light-gray);
    font-size: var(--fs-6);
    font-weight: var(--fw-300);
    line-height: 1.6;
}

.about-text p {
    margin-bottom: 15px;
}

/* service */

.service {
    margin-bottom: 35px;
}

.service-title {
    margin-bottom: 20px;
}

.service-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.service-item {
    position: relative;
    background: var(--border-gradient-onyx);
    padding: 20px;
    border-radius: 14px;
    box-shadow: var(--shadow-2);
    z-index: 1;
}

.service-item::before {
    content: "";
    position: absolute;
    inset: 1;
    background: var(--bg-gradient-jet);
    border-radius: inherit;
    z-index: -1;
}

.service-icon-box {
    margin-bottom: 10px;
}

.service-icon-box img {
    margin: auto;
}

.service-content-box {
    text-align: center;
}

.service-item-title {
    margin-bottom: 7px;
}

.service-item-text {
    color: var(--light-gray);
    font-size: var(--fs-6);
    font-weight: var(--fw-300);
    line-height: 1.6;
}

/* resume */

.article-title {
    margin-bottom: 30px;
}

/* education and experience */

.timeline {
    margin-bottom: 30px;
}

.timeline .title-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.timeline-list {
    font-size: var(--fs-6);
    margin-left: 45px;
}

.timeline-item {
    position: relative;
}

.timeline-item:not(:last-child) {
    margin-bottom: 20px;
}

.timeline-item-title {
    font-size: var(--fs-6);
    line-height: 1.3;
    margin-bottom: 7px;
}

.timeline-list span {
    color: var(--vegas-gold);
    font-weight: var(--fw-400);
    line-height: 1.6;
}

.timeline-item:not(:last-child)::before {
    content: "";
    position: absolute;
    top: -25px;
    left: -30px;
    width: 1px;
    height: calc(100% + 50px);
    background: var(--jet);
}

.timeline-item::after {
    content: "";
    position: absolute;
    top: 5px;
    left: -33px;
    height: 6px;
    width: 6px;
    background: var(--text-gradient-yellow);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--jet);
}

.timeline-text {
    color: var(--light-gray);
    font-weight: var(--fw-300);
    line-height: 1.6;
}

/* skill */

.skills-title {
    margin-bottom: 20px;
}

.skills-list {
    padding: 20px;
}

.skills-item:not(:last-child) {
    margin-bottom: 15px;
}

.skill .title-wrapper {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 8px;
}

.skill .title-wrapper data {
    color: var(--light-gray);
    font-size: var(--fs-7);
    font-weight: var(--fw-300);
}

.skill-progress-bg {
    background: var(--jet);
    width: 100%;
    height: 8px;
    border-radius: 10px;
}

.skill-progress-fill {
    background: var(--text-gradient-yellow);
    height: 100%;
    border-radius: inherit;
}

/* language-skill */
.language {
    margin-bottom: 20px;
}

.languages-title {
    margin-bottom: 20px;
}

.languages-list {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 15px;
    margin: 0 -15px;
    padding: 25px 15px;
    padding-bottom: 35px;
    overflow-x: auto;
    scroll-behavior: smooth;
    overscroll-behavior-inline: contain;
    scroll-snap-type: inline mandatory;
}

.language-item {
    min-width: 100%;
    scroll-snap-align: center;
}

.language-detail {
    padding-top: 20px;
}

.language-detail-title {
    text-align: center;
    margin-bottom: 5px;
}

.language-detail-list {
    padding: 20px;
}

.language-detail-item:not(:last-child) {
    margin-bottom: 15px;
}

.language-detail .title-wrapper {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 8px;
}

.language-detail .title-wrapper data {
    color: var(--light-gray);
    font-size: var(--fs-7);
    font-weight: var(--fw-300);
}

.language-detail-progress-bg {
    background: var(--jet);
    width: 100%;
    height: 8px;
    border-radius: 10px;
}

.language-detail-progress-fill {
    background: var(--text-gradient-yellow);
    height: 100%;
    border-radius: inherit;
}