:root{
    --background: #f7f6f2;
    --surface: #ffffff;
    --text: #24221f;
    --muted-text: #6d6860;
    --border: #ded9d0;
    --accent: #c9a27e;
    --accent-hover: #aa835f;
    --header-background: rgba(247, 246, 242, 0.88);
}

body.dark-mode{
    --background: #1f1e1b;
    --surface: #2a2825;
    --text: #f5f1e9;
    --muted-text: #bbb4aa;
    --border: #4a4640;
    --accent: #d8b38c;
    --accent-hover: #e5c6a5;
    --header-background: rgba(31, 30, 27, 0.88);
}

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Times New Roman', Times, serif;
    text-decoration: none;
    scroll-behavior: smooth;
    list-style: none;
}
html{
    scroll-snap-type: y mandatory;
    overscroll-behavior-y: none;
    scrollbar-width: none;
}
html::-webkit-scrollbar{
    display: none;
}
html.is-section-scrolling{
    scroll-behavior: auto;
    scroll-snap-type: none;
}

body{
    background-color: var(--background);
    color: var(--text);
    transition: 0.3s ease-in-out;
    overscroll-behavior-y: none;
}
body.modal-open{
    overflow: hidden;
}

header{
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    background-color: var(--header-background);
    backdrop-filter: blur(12px);
    color: var(--text);
    padding: 0.65rem 1.5rem;
    border: 1px solid var(--border);
    border-radius: 3rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    max-width: calc(100% - 2rem);
}
.logo{
    color: var(--text);
    font-size: 1.3rem;
    font-weight: 600;
    text-wrap: nowrap;
    transition: 0.3s ease-in-out;
}
.logo:hover{
    color: var(--accent);
    transform: scale(1.05);
}
.nav-links{
    display: flex;
    gap: 0.75rem;
}
.nav-links a{
    display: block;
    padding: 0.85rem 0.75rem;
}
.nav-links li a::before{
    top: auto;
    bottom: 0.2rem;
    left: 0.75rem;
}
.nav-links li a:hover::before{
    width: calc(100% - 1.5rem);
}
li a{
    position: relative;
    color: var(--text);
    font-weight: 500;
}
li a::before{
    position: absolute;
    content: '';
    width: 0;
    left: 0;
    height: 2px;
    top: 23px;
    border-radius: 1rem;
    transition: 0.3s ease-in-out;
    background: var(--accent);
}
li a:hover::before{
    width: 100%;
}
.visit-btn{
    padding: 0.85rem 1.5rem;
    border-radius: 3rem;
    border: none;
    font-weight: 600;
    font-size: 1rem;
    color: white;
    cursor: pointer;
    text-wrap: nowrap;
    transition: 0.3s ease-in-out;
    background: var(--accent);
}
.visit-btn:hover{
    background: var(--accent-hover);
    transform: scale(1.03);
}
.theme-btn{
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 1.2rem;
    padding: 0.55rem;
    cursor: pointer;
    transition: 0.2s ease-in-out;
}
.theme-btn:hover{
    color: var(--accent);
    transform: scale(1.1);
}
#menu-icon{
    font-size: 2rem;
    cursor: pointer;
    display: none;
}

section{
    min-height: 100vh;
    min-height: 100svh;
    padding: 6rem 12%;
    width: 100%;
    position: relative;
    scroll-snap-align: start;
    scroll-snap-stop: always;
}
.next-section-btn{
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    display: grid;
    width: 2.8rem;
    height: 2.8rem;
    place-items: center;
    transform: translateX(-50%);
    border: 1px solid var(--border);
    border-radius: 50%;
    background-color: var(--surface);
    color: var(--text);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: 0.2s ease-in-out;
}
.tile-hint{
    margin: -2.25rem 0 1.5rem;
    color: var(--muted-text);
    font-size: 1rem;
    font-style: italic;
    text-align: center;
}
.next-section-btn:hover{
    border-color: var(--accent);
    color: var(--accent);
    transform: translateX(-50%) translateY(4px);
}
.about{
    display: flex;
    align-items: center;
    justify-content: center;
}
.about .about-container{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8rem;
}
.about img{
    width: 30vw;
    max-width: 400px;
    border-radius: 50%;
    border: 8px solid var(--surface);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
}
.info-box{
    display: flex;
    flex-direction: column;
    text-align: center;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}
.info-box h3{
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--muted-text);
}
.info-box h1{
    font-size: 4rem;
    font-weight: 600;
}
.info-box span{
    color: var(--accent);
    font-size: 2rem;
}
.education{
    margin-top: 0.75rem;
    color: var(--muted-text);
    font-size: 1.05rem;
    line-height: 1.5;
}
.btn-group{
    display: flex;
    gap: 1rem;
}
.btn{
    border-radius: 3rem;
    padding: 0.6rem 1.5rem;
    border: 1px solid var(--border);
    background-color: var(--surface);
    color: var(--text);
    cursor: pointer;
    font-weight: 600;
    text-wrap: nowrap;
    transition: 0.2s ease-in-out;
}
.btn:hover{
    background-color: var(--text);
    border-color: var(--text);
    color: var(--background);
}
#resume-btn,
#contact-btn{
    padding: 0.8rem 1.9rem;
    font-size: 1.1rem;
}
.socials{
    display: flex;
    gap: 2rem;
}
.socials i{
    font-size: 2.2rem;
    cursor: pointer;
    transition: 0.2s ease-in-out;
}
.socials a,
.socials a:visited{
    color: var(--text);
}
.socials a:hover{
    color: var(--accent);
}
.socials i:hover{
    color: var(--accent);
    transform: scale(1.1);
}

.section-title{
    text-align: center;
    font-size: 4rem;
    font-weight: 600;
    margin-bottom: 3rem;
}
.experience-info{
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: center;
    gap: 5rem;
}
.experience,
.projects,
.education-section{
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.contact{
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 10rem);
    min-height: calc(100svh - 10rem);
}
.grid{
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2,minmax(0,1fr));
    gap: 1.5rem;
}
.grid-card,
.project-card{
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: baseline;
    justify-content: left;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: 0.2s ease-in-out;
}
.grid-card:hover,
.project-card:hover{
    border-color: var(--accent);
    transform: translateY(-6px);
}
.grid-card i{
    color: var(--accent);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.grid-card span{
    color: var(--text);
    font-size: 1.5rem;
    font-weight: 600;
}
.grid-card .employer{
    margin-top: 0.35rem;
    color: var(--muted-text);
    font-style: italic;
}
.grid-card h3{
    margin-top: 0.5rem;
}
.grid-card p{
    color: var(--muted-text);
    margin-top: 0.75rem;
    line-height: 1.5;
}
::-webkit-scrollbar{
    width: 14px;
}
::-webkit-scrollbar-track{
    background-color: var(--background);
}
::-webkit-scrollbar-thumb{
    background: var(--accent);
    border-radius: 1rem;
}

.projects-grid{
    display: grid;
    grid-template-columns: repeat(2,minmax(0,1fr));
    grid-auto-rows: 1fr;
    gap: 1.5rem;
    margin-bottom: 4.5rem;
}
.project-card img{
    width: calc(100% + 4rem);
    height: clamp(8rem, 15vh, 11rem);
    margin: 0 -2rem 1.25rem;
    object-fit: cover;
    border-radius: 1.5rem 1.5rem 0 0;
}
.project-card{
    padding: 0 2rem 2rem;
    align-items: stretch;
    min-height: clamp(16rem, 27vh, 21rem);
    height: auto;
    max-height: none;
    overflow: hidden;
}
.project-card h3{
    color: var(--text);
    font-size: 1.5rem;
    font-weight: 600;
}
.project-card p{
    color: var(--muted-text);
    margin-top: 0.75rem;
    line-height: 1.5;
}
.education-grid{
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
}
.education-card{
    min-height: 16rem;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}
.education-card i{
    margin-bottom: 1rem;
    color: var(--accent);
    font-size: 1.5rem;
}
.education-card h3{
    font-size: 1.5rem;
}
.education-card p{
    margin-top: 0.75rem;
    color: var(--muted-text);
    line-height: 1.5;
}
.education-card .institution{
    margin-top: 0.35rem;
    font-style: italic;
}

.input-box{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1.25rem;
    margin-top: 0;
}
.email-btn{
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.2rem;
    padding: 0.9rem 1.8rem;
}
.contact-actions{
    justify-content: center;
    flex-wrap: wrap;
}

.modal{
    position: fixed;
    inset: 0;
    display: none;
    padding: 2rem;
    overflow-y: auto;
    background-color: rgba(20, 18, 15, 0.45);
    backdrop-filter: blur(10px);
    z-index: 2000;
}
.modal.active{
    display: block;
    animation: modal-backdrop-in 0.25s ease-out;
}
.modal.active .modal-content{
    animation: modal-content-in 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal.closing{
    display: block;
    animation: modal-backdrop-out 0.22s ease-in forwards;
}
.modal.closing .modal-content{
    animation: modal-content-out 0.22s cubic-bezier(0.7, 0, 0.84, 0) forwards;
}
.modal-content{
    position: relative;
    width: min(720px, 100%);
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}
@keyframes modal-backdrop-in{
    from{
        opacity: 0;
    }
    to{
        opacity: 1;
    }
}
@keyframes modal-content-in{
    from{
        transform: scale(0.35);
    }
    to{
        transform: scale(1);
    }
}
@keyframes modal-backdrop-out{
    to{
        opacity: 0;
    }
}
@keyframes modal-content-out{
    to{
        opacity: 0;
        transform: scale(0.35);
    }
}
.modal-content.resume-modal-content{
    width: min(1000px, 100%);
}
.modal-content.contact-modal-content{
    width: min(460px, 100%);
}
.modal-content.project-modal-content .close-btn{
    color: #24221f;
}
.modal-content.project-modal-content .close-btn:hover{
    color: var(--accent-hover);
}
.contact-modal-content .btn-group{
    justify-content: center;
    flex-wrap: wrap;
}
.modal-page{
    display: none;
    text-align: center;
}
.modal-page.active{
    display: block;
}
.modal-page h2{
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}
.modal-employer{
    display: none;
    margin: -1rem 0 1.5rem;
    color: var(--muted-text);
    font-size: 1.4rem;
    font-style: italic;
}
.modal-employer.active{
    display: block;
}
.project-hero{
    display: none;
    margin: -2rem -2rem 1.5rem;
    overflow: hidden;
    border-radius: 1.5rem 1.5rem 0 0;
}
.project-hero.active{
    display: block;
}
.project-hero img{
    display: block;
    width: 100%;
    height: auto;
}
.modal-page p,
.detail-list{
    color: var(--muted-text);
    font-size: 1.2rem;
    line-height: 1.6;
}
.detail-list{
    max-width: 48rem;
    margin: 0 auto;
    padding-left: 1.4rem;
    text-align: left;
    list-style: disc;
}
.detail-list li{
    list-style: disc;
}
.detail-list li + li{
    margin-top: 0.75rem;
}
.project-gallery{
    display: none;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 1.75rem;
}
.project-gallery.active{
    display: grid;
}
.project-gallery img{
    width: 100%;
    max-height: 32rem;
    object-fit: contain;
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: 1rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}
.project-gallery figure{
    margin: 0;
}
.project-gallery figcaption{
    margin-top: 0.5rem;
    color: var(--muted-text);
    font-size: 1rem;
    text-align: center;
}
.pdf-viewer{
    width: 100%;
    padding: 0.75rem;
    background-color: #e8e5df;
    border-radius: 1rem;
}
.pdf-viewer canvas{
    display: block;
    width: 100%;
    height: auto;
    margin: 0 auto 1rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
}
.pdf-viewer canvas:last-child{
    margin-bottom: 0;
}
.resume-download-btn{
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 1.5rem;
    padding: 0.85rem 2rem;
    font-size: 1.15rem;
}
.close-btn{
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 1.8rem;
    cursor: pointer;
}
.close-btn:hover{
    color: var(--accent);
}

footer{
    bottom: 0;
    left: 0;
    min-height: 10rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    justify-content: center;
    border-top: 1px solid var(--border);
}
footer ul{
    display: flex;
    align-items: center;
    gap: 3rem;
}
footer ul li a{
    color: var(--text);
    font-weight: 600;
}
.copyright{
    color: var(--muted-text);
    margin-top: 1rem;
}

@media(max-width:1280px){
    header{
        padding: 1rem 2rem;
        gap: 2rem;
    }
    .about .about-container{
        gap: 3rem;
    }
    .experience-info{
        flex-direction: column;
    }
}

@media(min-width:1281px){
    .project-card{
        min-height: clamp(20rem, 30vh, 24rem);
    }
    .project-card img{
        height: clamp(12rem, 18vh, 15rem);
    }
}

@media(max-width:768px){
    html{
        scroll-snap-type: none;
    }
    .next-section-btn{
        display: none;
    }
    .tile-hint{
        margin-bottom: 1.5rem;
    }
    header{
        gap: 1rem;
        padding: 1rem;
    }
    header .logo{
        font-size: 1rem;
    }
    header .visit-btn{
        display: none;
    }
    .about .about-container{
        flex-direction: column;
    }
    .about img{
        width: 55vw;
    }
    .grid,
    .projects-grid,
    .education-grid{
        grid-template-columns: 1fr;
    }
    .project-card{
        height: auto;
        max-height: none;
    }
}

@media(prefers-reduced-motion: reduce){
    .modal.active,
    .modal.active .modal-content,
    .modal.closing,
    .modal.closing .modal-content{
        animation: none;
    }
}

@media(max-width:900px){
    header{
        width: calc(100% - 2rem);
        justify-content: space-between;
        gap: 1rem;
        padding: 1rem;
    }
    header .visit-btn{
        display: none;
    }
    header #menu-icon{
        display: block;
    }
    .theme-btn{
        margin-left: auto;
    }
    .nav-links{
        position: absolute;
        top: 100%;
        left: 50%;
        width: min(20rem, 100%);
        margin-top: 1rem;
        padding: 1rem;
        display: none;
        flex-direction: column;
        align-items: center;
        transform: translateX(-50%);
        text-align: center;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 1.5rem;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    }
    .nav-links.active{
        display: flex;
    }
    .nav-links li{
        width: 100%;
        margin-top: 0.15rem;
        padding: 0;
    }
    .nav-links a{
        width: 100%;
        padding: 1rem;
    }
}

@media(max-width:600px){
    header #menu-icon{
        display: block;
    }
    .nav-links{
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        margin-top: 1rem;
        width: min(20rem, 100%);
        padding: 1rem;
        display: none;
        flex-direction: column;
        align-items: center;
        text-align: center;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 1.5rem;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    }
    .nav-links li{
        width: 100%;
        margin-top: 0.15rem;
        padding: 0;
    }
    .nav-links a{
        width: 100%;
        padding: 1rem;
    }
    .nav-links.active{
        display: flex;
    }
    header{
        width: calc(100% - 2rem);
        justify-content: space-between;
    }
    header .logo{
        font-size: 1.1rem;
    }
    .theme-btn{
        margin-left: auto;
    }
    .about img{
        width: 75vw;
    }
    .info-box h1,
    .section-title{
        font-size: 3rem;
    }
    footer ul{
        gap: 1rem;
    }
    .modal{
        padding: 1rem;
    }
    .modal-content{
        margin: 1rem auto;
        padding: 3.5rem 1.5rem 1.5rem;
    }
    .project-hero{
        margin: -3.5rem -1.5rem 1.5rem;
    }
    .modal-page .btn-group{
        flex-direction: column;
        align-items: center;
    }
}