/*==================== GOOGLE FONTS 字体====================*/
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600&display=swap");

/*==================== VARIABLES CSS ====================*/
:root {
    --header-height: 3rem;

    /*========== Colors 主题色彩==========*/
    --hue-color: 250; /*Purple 250 - Green 142 - Blue 230 - Pink 340*/

    /* HSL color mode */
    --first-color: hsl(var(--hue-color), 69%, 61%);
    --first-color-second: hsl(var(--hue-color), 69%, 61%);
    --first-color-alt: hsl(var(--hue-color), 57%, 53%);
    --first-color-lighter: hsl(var(--hue-color), 92%, 85%);
    --title-color: hsl(var(--hue-color), 12%, 12%);
    --text-color: hsl(var(--hue-color), 10%, 28%);
    --text-color-light: hsl(var(--hue-color), 8%, 42%);
    --input-color: hsl(var(--hue-color), 70%, 96%);
    --body-color: hsl(var(--hue-color), 60%, 99%);
    --container-color: hsl(var(--hue-color), 100%, 98%);
    --scroll-bar-color: hsl(var(--hue-color), 12%, 90%);
    --scroll-thumb-color: hsl(var(--hue-color), 12%, 80%);

    /*========== Font and typography ==========*/
    --body-font: 'Poppins', sans-serif;

    --big-font-size: 2rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1.125rem;
    --normal-font-size: .938rem;
    --small-font-size: .813rem;
    --smaller-font-size: .75rem;

    /*========== Font weight ==========*/
    --font-medium: 500;
    --font-semi-bold: 600;

    /*========== Margenes Bottom ==========*/
    --mb-0-25: .25rem;
    --mb-0-5: .5rem;
    --mb-0-75: .75rem;
    --mb-1: 1rem;
    --mb-1-5: 1.5rem;
    --mb-2: 2rem;
    --mb-2-5: 2.5rem;
    --mb-3: 3rem;

    /*========== z index ==========*/
    --z-tooltip: 10;
    --z-fixed: 100;
    --z-modal: 1000;
}

/* Font size for large devices */
@media screen and (min-width: 968px) {
    :root {
        --big-font-size: 3rem;
        --h1-font-size: 2.25rem;
        --h2-font-size: 1.5rem;
        --h3-font-size: 1.25rem;
        --normal-font-size: 1rem;
        --small-font-size: .875rem;
        --smaller-font-size: .813rem;
    }
}

/*========== Variables Dark theme ==========*/
body.dark-theme {
    --first-color-second: hsl(var(--hue-color), 30%, 8%);
    --title-color: hsl(var(--hue-color), 8%, 95%);
    --text-color: hsl(var(--hue-color), 8%, 45%);
    --text-color-light: hsl(var(--hue-color), 8%, 75%);
    --input-color: hsl(var(--hue-color), 29%, 16%);
    --body-color: hsl(var(--hue-color), 28%, 12%);
    --container-color: hsl(var(--hue-color), 29%, 16%);
    --scroll-bar-color: hsl(var(--hue-color), 12%, 48%);
    --scroll-thumb-color: hsl(var(--hue-color), 12%, 36%);
}

body {
    transition: all 0.2s;
}

/*========== Button Dark/Light ==========*/
.nav__btns {
    display: flex;
    align-items: center;
}

.change-theme {
    font-size: 1.25rem;
    color: var(--title-color);
    margin-right: var(--mb-1);
    cursor: pointer;
}

.change-theme:hover {
    color: var(--first-color);
}

/*==================== BASE ====================*/
* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0 0 var(--header-height) 0;
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    background-color: var(--body-color);
    color: var(--text-color);
}

h1, h2, h3, h4 {
    color: var(--title-color);
    font-weight: var(--font-semi-bold);
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

/*==================== REUSABLE CSS CLASSES ====================*/
.section {
    padding: 2rem 0 4rem;
}

.section__title {
    font-size: var(--h1-font-size);
    color: var(--title-color);
}

.section__subtitle {
    display: block;
    font-size: var(--small-font-size);
    margin-bottom: var(--mb-3);
}

.section__title,
.section__subtitle {
    text-align: center;
}

/*==================== LAYOUT ====================*/
.container {
    max-width: 768px;
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
}

.grid {
    display: grid;
    gap: 1.5rem;
}

.header {
    width: 100%;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: var(--z-fixed);
    background-color: var(--body-color);
}

/*==================== NAV ====================*/
.nav {
    max-width: 968px;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo,
.nav__toggle {
    color: var(--title-color);
    font-weight: var(--font-medium);
}

.nav__logo:hover {
    color: var(--first-color);
}

.nav__toggle {
    font-size: 1.1rem;
    cursor: pointer;
}

.nav__toggle:hover {
    color: var(--first-color);
}

/* mobile devices */
@media screen and (max-width: 767px) {
    .nav__menu {
        position: fixed;
        bottom: -100%;
        left: 0;
        width: 100%;
        background-color: var(--body-color);
        padding: 2rem 1.5rem 4rem;
        box-shadow: 0 -1px 4px rgba(0,0,0,.15);
        border-radius: 1.5rem 1.5rem 0 0;
        transition: .3s;
    }
}

.nav__list {
    grid-template-columns: repeat(3,1fr);
    gap: 2rem;
}

.nav__item {
    align-items: center;
}

.nav__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: var(--small-font-size);
    color: var(--title-color);
    font-weight: var(--font-medium);
    cursor: pointer;
    text-transform: capitalize;
}

.nav__link:hover {
    color: var(--first-color);
}

.nav__link:hover svg {
    fill: var(--first-color);
}

.nav__icon {
    font-size: 1.2rem;
}

.nav__icon-svg {
    fill: var(--title-color);
    font-size: 1.4rem;
    margin-top: 4px;
    margin-bottom: 2px;
}

.nav__close {
    position: absolute;
    right: 1.3rem;
    bottom: .5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--first-color);
}

.nav__close:hover {
    color: var(--first-color-alt);
}

/* show menu */
.show-menu {
    bottom: 0;
}

/* Active link */
.active-link {
    color: var(--first-color);
}

/* Change background header */
.scroll-header {
    box-shadow: 0 -1px 4px rgba(0,0,0,.15);
}

/*==================== HOME ====================*/
.home__container {
    gap: 1rem;
}

.home__content {
    grid-template-columns: .5fr 3fr;
    padding-top: 3.5rem;
    align-items: center;
}

.home__social {
    display: grid;
    grid-template-columns: max-content;
    row-gap: 1rem;
}

.home__social-icon {
    font-size: 1.25rem;
    color: var(--first-color);
}

.home__social-icon:hover {
    color: var(--first-color-alt);
}

.home__blob {
    width: 200px;
    fill: var(--first-color);
}

.home__blob-img {
    width: 220px;
}

.home__data {
    grid-column: 1/3;
}

.home__title {
    font-size: var(--big-font-size);
}

.home__subtitle {
    font-size: var(--h3-font-size);
    color: var(--text-color);
    font-weight: var(--font-medium);
    margin-bottom: var(--mb-0-75);
}

.home__description {
    margin-bottom: var(--mb-2);
}

.home__scroll-button {
    color: var(--first-color);
    transition: .3s;
}

.home__scroll-button:hover {
    transform: translateY(0.25rem);
}

.home__scroll-mouse {
    font-size: 2rem;
}

.home__scroll-name {
    font-size: var(--small-font-size);
    color: var(--title-color);
    font-weight: var(--font-medium);
    margin-right: var(--mb-0-25);
}

.home__scroll-arrow {
    font-size: 1.25rem;
}

/*==================== BUTTONS ====================*/
.button {
    display: inline-block;
    background-color: var(--first-color);
    color: #FFFF;
    padding: 1rem;
    border-radius: .5rem;
    font-weight: var(--font-medium);
}

.button:hover {
    background-color: var(--first-color-alt);
}

.button__icon {
    font-size: 1.2rem;
    margin-left: var(--mb-0-5);
    transition: .3s;
}

.button--flex {
    display: inline-flex;
    align-items: center;
    transition: .3s;
}

.button--small {
    padding: .75rem 1rem;
}

.button--link {
    padding: 0;
    background-color: transparent;
    color: var(--first-color);
}

.button--link:hover {
    background-color: transparent;
    color: var(--first-color-alt);
}

/*==================== ABOUT ====================*/
.about__container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

.about__img-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about__img {
    width: 200px;
    border-radius: .5rem;
    justify-self: center;
    align-self: center;
}

.about__description {
    text-align: center;
    margin-bottom: var(--mb-2-5);
}

.img-caption {
    font-size: 0.85rem;
    color: #777;
    text-align: center;
    margin-top: 8px;
    font-style: italic;
}

.about__info {
    display: flex;
    justify-content: space-evenly;
    margin-bottom: var(--mb-2-5);
}

.about__info-title {
    font-size: var(--h2-font-size);
    font-weight: var(--font-semi-bold);
    color: var(--title-color);
}

.about__info-name {
    font-size: var(--smaller-font-size);
}

.about__info-title,
.about__info-name {
    display: block;
    text-align: center;
}

.about__buttons {
    display: flex;
    justify-content: center;
}

/*==================== SKILLS ====================*/
.skills__container {
    row-gap: 0;
}

.skills__header {
    display: flex;
    align-items: center;
    margin-bottom: var(--mb-2-5);
    cursor: pointer;
}

.skills__icon,
.skills__arrow {
    font-size: 2rem;
    color: var(--first-color);
}

.skills__icon {
    margin-right: var(--mb-0-75);
}

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

.skills__subtitle {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
}

.skills__arrow {
    margin-left: auto;
    transition: .4s;
}

.skills__list {
    row-gap: 1.5rem;
    padding-left: 2.7rem;
    transition: .4s;
}

.skills__titles {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--mb-0-5);
}

.skills__name {
    font-size: var(--normal-font-size);
    font-weight: var(--font-medium);
}

.skills__bar,
.skills__percentage {
    height: 5px;
    border-radius: .25rem;
}

.skills__bar {
    background-color: var(--first-color-lighter);
}

.skills__percentage {
    display: block;
    background-color: var(--first-color);
}

.skills__html { width: 60%; }
.skills__css { width: 50%; }
.skills__js { width: 30%; }
.skills__vue { width: 10%; }
.skills__java { width: 70%; }
.skills__python { width: 50%; }

.skills__close .skills__list {
    height: 0;
    overflow: hidden;
}

.skills__open .skills__list {
    height: max-content;
    margin-bottom: var(--mb-2-5);
}

.skills__open .skills__arrow {
    transform: rotate(-180deg);
}

/*==================== QUALIFICATION ====================*/
.qualification__tabs {
    display: flex;
    justify-content: space-evenly;
    margin-bottom: var(--mb-2);
}

.qualification__button {
    font-size: var(--h3-font-size);
    font-weight: var(--font-medium);
    cursor: pointer;
}

.qualification__button:hover {
    color: var(--first-color);
}

.qualification__icon {
    font-size: 1.8rem;
    margin-right: var(--mb-0-25);
}

.qualification__data {
    display: grid;
    grid-template-columns: 1fr max-content 1fr;
    column-gap: 1.5rem;
}

.qualification__title {
    font-size: var(--normal-font-size);
    font-weight: var(--font-medium);
}

.qualification__subtitle {
    display: inline-block;
    font-size: var(--small-font-size);
    margin-bottom: var(--mb-1);
}

.qualification__calendar {
    font-size: var(--smaller-font-size);
    color: var(--text-color-light);
}

.qualification__rounder {
    display: inline-block;
    width: 13px;
    height: 13px;
    background-color: var(--first-color);
    border-radius: 50%;
}

.qualification__line {
    display: block;
    width: 1px;
    height: 100%;
    background-color: var(--first-color);
    transform: translate(6px, -7px);
}

.qualification__content[data-content] {
    display: none;
}

.qualification__active[data-content] {
    display: block;
}

.qualification__button.qualification__active {
    color: var(--first-color);
}

/* Active Modal */
.active-modal {
    opacity: 1;
    visibility: visible;
}

/*==================== PORTFOLIO ====================*/
.portfolio__container {
    overflow: initial;
}

.portfolio__content {
    padding: 0 1.5rem;
}

.portfolio__img {
    width: 265px;
    border-radius: .5rem;
    justify-self: center;
}

.portfolio__title {
    font-size: var(--h3-font-size);
    margin-bottom: var(--mb-0-5);
}

.portfolio__description {
    margin-bottom: var(--mb-0-75);
}

.portfolio__button:hover .button__icon {
    transform: translateX(.25rem);
}

.swiper-button-prev::after,
.swiper-button-next::after {
    content: '';
}

.swiper-portfolio-icon {
    font-size: 2rem;
    color: var(--first-color);
}

.swiper-button-prev {
    left: -.5rem;
}

.swiper-button-next {
    right: -.5rem;
}

.swiper-container-horizontal > .swiper-pagination-bullets {
    bottom: -2.5rem;
}

.swiper-pagination-bullet-active {
    background-color: var(--first-color);
}

.swiper-button-prev,
.swiper-button-next,
.swiper-pagination-bullet {
    outline: none;
}

/*==================== CONTACT ME ====================*/
.contact__container {
    row-gap: 3rem;
}

.contact__information {
    display: flex;
    margin-bottom: var(--mb-2);
}

.contact__icon {
    font-size: 1.5rem;
    color: var(--first-color);
    margin-right: var(--mb-0-75);
    flex-shrink: 0;
}

.content__title {
    font-size: var(--h3-font-size);
    font-weight: var(--font-medium);
}

.contact__title {
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
  line-height: 1.4;
}

.contact__subtitle {
    font-size: var(--small-font-size);
    color: var(--text-color);
    font-weight: var(--font-regular);
    overflow-wrap: anywhere;
    word-break: break-word;
}

.contact__content {
    background-color: var(--input-color);
    border-radius: .5rem;
    padding: .75rem 1rem .25rem;
}

.contact__label {
    font-size: var(--smaller-font-size);
    color: var(--title-color);
}

.contact__input {
    width: 100%;
    background-color: var(--input-color);
    color: var(--text-color);
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    border: none;
    outline: none;
    padding: .25rem .5rem .5rem 0;
}

/*==================== FOOTER ====================*/
.footer {
    padding-top: 2rem;
}

.footer__container {
    row-gap: 3.5rem;
}

.footer__bg {
    background-color: var(--first-color-second);
    padding: 2rem 0 3rem;
}

.footer__title {
    font-size: var(--h1-font-size);
    margin-bottom: var(--mb-0-25);
}

.footer__subtitle {
    font-size: var(--small-font-size);
}

.footer__links {
    margin-left: 2rem;
    white-space: nowrap;
    display: flex;
    flex-direction: column;
    row-gap: 1.5rem;
}

.footer__link:hover {
    color: var(--first-color-lighter);
}

.footer__social {
    font-size: 1.35rem;
    margin-right: var(--mb-1-5);
}

.footer__social:hover {
    color: var(--first-color-lighter);
}

.footer__copy {
    font-size: var(--smaller-font-size);
    text-align: center;
    color: #ffffff;
    margin-top: var(--mb-3);
}

.footer__title,
.footer__subtitle,
.footer__link,
.footer__social {
    color: #FFF;
    fill: #FFF;
}

.icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    overflow: hidden;
}

/*========== SCROLL UP ==========*/
.scrollup {
    position: fixed;
    right: 1rem;
    bottom: -20%;
    background-color: var(--first-color);
    opacity: .8;
    padding: 0 .3rem;
    border-radius: .4rem;
    z-index: var(--z-tooltip);
    transition: .4s;
}

.scrollup:hover {
    background-color: var(--first-color-alt);
}

.scrollup__icon {
    font-size: 1.5rem;
    color: #FFF;
}

/* Show scroll */
.show-scroll {
    bottom: 5rem;
}

/*========== SCROLL BAR ==========*/
::-webkit-scrollbar {
    width: .60rem;
    background-color: var(--scroll-bar-color);
    border-radius: .5rem;
}

::-webkit-scrollbar-thumb {
    background-color: var(--scroll-thumb-color);
    border-radius: .5rem;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-color-light);
}

/*==================== MEDIA QUERIES ====================*/
/* For small devices */
@media screen and (max-width: 350px) {
    .container {
        margin-left: var(--mb-1);
        margin-right: var(--mb-1);
    }

    .nav__menu {
        padding: 2rem .25rem 4rem;
    }

    .nav__list {
        column-gap: 0;
    }

    .home__content {
        grid-template-columns: .25fr 3fr;
    }

    .home__blob {
        width: 180px;
    }

    .skills__title {
        font-size: var(--normal-font-size);
    }

    .qualification__data {
        gap: .5rem;
    }

    .services__container {
        grid-template-columns: max-content;
        justify-content: center;
    }

    .services__content {
        padding-right: 3.5rem;
    }

    .services__modal {
        padding: 0 .5rem;
    }

    .project__img {
        width: 200px;
    }

    .testimonial__header,
    .testimonial__data {
        flex-direction: column;
        align-items: center;
    }

    .testimonial__img {
        margin-right: 0;
        margin-bottom: var(--mb-0-25);
    }

    .testimonial__data,
    .testimonial__description {
        text-align: center;
    }
}

/* For medium devices */
@media screen and (min-width: 568px) {
    .home__content {
        grid-template-columns: max-content 1fr 1fr;
    }

    .home__data {
        grid-column: initial;
    }

    .home__img {
        order: 1;
        justify-self: center;
    }

    .skills_container,
    .portfolio__content,
    .project__container,
    .contact__container,
    .footer__container {
        grid-template-columns: repeat(2, 1fr);
    }

    .qualification__sections {
        display: grid;
        grid-template-columns: .6fr;
        justify-content: center;
    }
}

@media screen and (min-width: 768px) {
    .container {
        margin-left: auto;
        margin-right: auto;
    }

    .body {
        margin: 0;
    }

    .section {
        padding: 6rem 0 2rem;
    }

    .section__subtitle {
        margin-bottom: 4rem;
    }

    .header {
        top: 0;
        bottom: initial;
    }

    .header,
    .main,
    .footer__container {
        padding: 0 1rem;
    }

    .nav {
        height: calc(var(--header-height) + 1.5rem);
        column-gap: 1rem;
    }

    .nav__icon,
    .nav__close,
    .nav__toggle {
        display: none;
    }

    .nav__list {
        display: flex;
        column-gap: 2rem;
    }

    .nav__item {
        align-content: center;
        display: flex;
        flex-wrap: wrap;
    }

    #translate {
        font-size: 0;
    }

    .nav__menu {
        margin-left: auto;
    }

    .change-theme {
        margin: 0;
    }

    .home__container {
        row-gap: 5rem;
    }

    .home__content {
        padding-top: 5.5rem;
        column-gap: 2rem;
    }

    .home__blob {
        width: 270px;
    }

    .home__scroll {
        display: block;
    }

    .home__scroll-button {
        margin-left: 3rem;
    }

    .about__container {
        column-gap: 5rem;
    }

    .about__img {
        width: 350px;
    }

    .about__description {
        text-align: initial;
    }

    .about__info {
        justify-content: space-between;
    }

    .qualification__tabs {
        justify-content: center;
    }

    .qualification__button {
        margin: 0 var(--mb-1);
    }

    .qualification__sections {
        grid-template-columns: .5fr;
    }

    .services__container {
        grid-template-columns: repeat(3, 218px);
        justify-content: center;
    }

    .services__icon {
        font-size: 2rem;
    }

    .services__content {
        padding: 6rem 0 2rem 2.5rem;
    }

    .services__modal-content {
        width: 450px;
    }

    .portfolio__img {
        width: 320px;
    }

    .portfolio__content {
        align-items: center;
    }

    .project {
        text-align: initial;
    }

    .project__bg {
        background: none;
    }

    .project__container {
        background-color: var(--first-color-second);
        border-radius: 1rem;
        padding: 3rem 2.5rem 0;
        grid-template-columns: 1fr max-content;
        column-gap: 3rem;
    }

    .project__data {
        padding-top: .8rem;
    }

    .footer__container {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer__bg {
        padding: 3rem 0 3.5rem;
    }

    .footer__links {
        flex-direction: row;
        column-gap: 2rem;
    }

    .footer__socials {
        justify-self: flex-end;
    }

    .footer__copy {
        margin-top: 4.5rem;
    }

    .service__item {
        padding: 1.35rem 1.5rem;
    }
}

/* For large devices */
@media screen and (min-width: 1024px) {
    .header,
    .main,
    .footer__container {
        padding: 0;
    }

    .home__blob {
        width: 320px;
    }

    .home__social {
        transform: translateX(-6rem);
    }

    .services__container {
        grid-template-columns: repeat(3, 238px);
    }

    .portfolio__content {
        column-gap: 5rem;
    }

    .swiper-portfolio-icon {
        font-size: 3.5rem;
    }

    .swiper-button-prev {
        left: -3.5rem;
    }

    .swiper-button-next {
        right: -3.5rem;
    }

    .swiper-container-horizontal > .swiper-pagination-bullets {
        bottom: -4.5rem;
    }

    .contact__form {
        width: 460px;
    }

    .contact__inputs {
        grid-template-columns: repeat(2, 1fr);
    }
}

/*==================== PAGE WRAPPERS ====================*/
.publications__page,
.teaching__page,
.service__page,
.contact__page {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
    box-sizing: border-box;
}

/*==================== PUBLICATIONS ====================*/
.publications__heading {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--first-color);
    padding-bottom: 0.5rem;
}

.publications__heading--space {
    margin-top: 3.5rem;
}

.publications__heading-icon {
    font-size: 1.9rem;
}

.publications__list {
    list-style: none;
    padding-left: 0;
    margin: 0;
    display: grid;
    gap: 1.25rem;
}

.publications__item {
    line-height: 1.8;
    overflow-wrap: break-word;
    word-break: break-word;
}

.publications__item a {
    overflow-wrap: break-word;
    word-break: break-all;
}

.moments.section {
    padding-bottom: 6rem;
}

.teaching__term {
    color: var(--text-color-light);
    font-size: var(--small-font-size);
    margin-bottom: 0.5rem;
}

/* ====== Card Section Layout ====== */
.card-section {
    max-width: 900px;
    margin: 0 auto;
    background: var(--container-color);
    border-radius: 1rem;
    box-shadow: 0 1px 10px rgba(0,0,0,.06);
    padding: 1.25rem 1.25rem;
    overflow: hidden;
}

.card-section__header {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: 1rem;
}

.card-section__icon {
    font-size: 1.25rem;
    color: var(--title-color);
    flex-shrink: 0;
}

.card-section__title {
    font-size: var(--h3-font-size);
    color: var(--title-color);
    font-weight: var(--font-semi-bold);
    line-height: 1.4;
}

.entry-list {
    display: grid;
    gap: 1rem;
}

.entry {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    align-items: center;
}

.entry__left {
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: .75rem;
    align-items: start;
    min-width: 0;
}

.entry__logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
}

.entry__headline {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    align-items: baseline;
    line-height: 1.35;
}

.entry__name {
    font-weight: var(--font-semi-bold);
    color: var(--title-color);
    overflow-wrap: break-word;
    word-break: break-word;
}

.entry__with {
    font-size: var(--small-font-size);
    color: var(--text-color-light);
    overflow-wrap: break-word;
    word-break: break-word;
}

.entry__sub {
    margin-top: .25rem;
    color: var(--text-color);
    font-size: var(--small-font-size);
    line-height: 1.6;
    overflow-wrap: break-word;
    word-break: break-word;
}

.entry__date {
    color: var(--text-color-light);
    font-size: var(--small-font-size);
    white-space: nowrap;
}

.entry + .entry {
    padding-top: 1rem;
    border-top: 1px solid rgba(0,0,0,.06);
}

/* ===== Service section ===== */
.service__section-title {
    font-size: var(--h2-font-size);
    margin-top: 2.25rem;
    margin-bottom: var(--mb-1-5);
    line-height: 1.4;
}

.service__list {
    display: grid;
    gap: 1.25rem;
}

.service__item {
    background: var(--container-color);
    border-radius: 0.75rem;
    padding: 1.15rem 1.25rem;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.service__row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 1rem;
    align-items: start;
}

.service__title {
    font-size: var(--h3-font-size);
    margin: 0 0 0.35rem 0;
    line-height: 1.4;
    overflow-wrap: break-word;
    word-break: break-word;
}

.service__role {
    color: var(--text-color-light);
    font-size: var(--small-font-size);
    margin: 0;
    line-height: 1.6;
    overflow-wrap: break-word;
    word-break: break-word;
}

.service__term {
    color: var(--text-color-light);
    font-size: var(--small-font-size);
    white-space: nowrap;
    padding-top: 0.15rem;
}

/* ===== Contact layout: centered & compact ===== */
.contact__two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 2.5rem;
    align-items: start;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 2.5rem;
    padding-right: 0;
}

.contact__left {
    margin-top: 1.6rem;
}

.contact__information {
    display: flex;
    align-items: flex-start;
    column-gap: 0.75rem;
    margin-bottom: 1.1rem;
    min-width: 0;
}

.contact__right .contact__information {
    margin-bottom: 0.85rem;
}

.contact__link {
    color: var(--text-color);
    text-decoration: none;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.contact__link:hover {
    color: var(--first-color);
    text-decoration: underline;
}

/* Light mode (default) */
.contact__title-link {
    color: #111;
    text-decoration: none;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.contact__title-link:hover {
    color: #111;
    text-decoration: underline;
}

/* Dark mode */
body.dark-theme .contact__title-link {
    color: #fff;
}

body.dark-theme .contact__title-link:hover {
    color: #fff;
    text-decoration: underline;
}

.slides-download {
    margin-top: 1.5rem;
}

/*==================== EXTRA MOBILE ====================*/
@media screen and (max-width: 768px) {
    .publications__page,
    .teaching__page,
    .service__page,
    .contact__page {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .publications__heading {
        font-size: 1.25rem;
    }

    .publications__item {
        font-size: 0.95rem;
        line-height: 1.75;
    }

    .card-section {
        padding: 1rem;
        border-radius: 0.85rem;
    }

    .card-section__header {
        align-items: flex-start;
    }

    .card-section__title {
        font-size: 1rem;
    }

    .entry {
        grid-template-columns: 1fr;
        gap: .6rem;
    }

    .entry__date {
        justify-self: start;
        white-space: normal;
    }

    .service__item {
        padding: 1rem;
    }

    .service__row {
        grid-template-columns: 1fr;
        gap: .35rem;
    }

    .service__term {
        white-space: normal;
        padding-top: 0;
    }

    .contact__two-col {
        grid-template-columns: 1fr;
        row-gap: 1.8rem;
        padding-left: 0;
        padding-right: 0;
    }

    .contact__left {
        margin-top: 0;
    }

    .footer__links {
        margin-left: 0;
        align-items: center;
        white-space: normal;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .container {
        margin-left: 1rem;
        margin-right: 1rem;
    }

    .section {
        padding: 1.5rem 0 3rem;
    }

    .section__title {
        font-size: 1.35rem;
    }

    .section__subtitle {
        margin-bottom: 2rem;
    }

    .publications__heading {
        font-size: 1.1rem;
        gap: 0.45rem;
    }

    .publications__heading-icon {
        font-size: 1.3rem;
    }

    .entry__left {
        grid-template-columns: 32px 1fr;
        gap: .65rem;
    }

    .entry__logo {
        width: 32px;
        height: 32px;
        border-radius: 8px;
    }

    .entry__headline {
        gap: .25rem;
    }

    .entry__sub,
    .service__role,
    .publications__item,
    .contact__subtitle {
        font-size: 0.92rem;
    }

    .service__title {
        font-size: 1rem;
    }

    .card-section,
    .service__item {
        padding: 0.9rem;
    }

    .contact__information {
        column-gap: 0.6rem;
    }

    .footer__bg {
        padding: 2rem 0 5rem;
    }
}

/*==================== MOBILE FIXES FOR TEACHING & SERVICE ====================*/
@media screen and (max-width: 768px) {
    /* page titles and subtitles: add side spacing on mobile */
    #teaching .section__title,
    #teaching .section__subtitle,
    #service .section__title,
    #service .section__subtitle {
        padding-left: 1rem;
        padding-right: 1rem;
        box-sizing: border-box;
    }

    #teaching .section__title,
    #service .section__title {
        line-height: 1.25;
    }

    /* keep icon + text on the same row for teaching/service cards */
    .teaching__item {
        grid-template-columns: 48px 1fr !important;
        gap: 0.75rem !important;
        padding: 1rem !important;
        align-items: start !important;
    }

    .teaching__logo {
        width: 48px !important;
        height: 48px !important;
        border-radius: 12px !important;
    }

    .teaching__section-title,
    .service__section-title {
        font-size: 1.1rem !important;
        line-height: 1.4;
    }

    .teaching__container,
    .service__page {
        width: 100%;
    }

    .teaching__course,
    .teaching__meta,
    .teaching__desc,
    .service__title,
    .service__role {
        overflow-wrap: break-word;
        word-break: break-word;
    }
}

@media screen and (max-width: 480px) {
    #teaching .section__title,
    #service .section__title {
        font-size: 1.25rem;
    }

    #teaching .section__subtitle,
    #service .section__subtitle {
        font-size: var(--small-font-size);
    }

    .teaching__item {
        grid-template-columns: 42px 1fr !important;
        gap: 0.7rem !important;
        padding: 0.9rem !important;
    }

    .teaching__logo {
        width: 42px !important;
        height: 42px !important;
        border-radius: 10px !important;
    }
}



.about__block {
  margin-bottom: 2.5rem;
}

.about__heading {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--title-color);
}