html {
    scroll-behavior: smooth;
}

/* Light and dark theme colors */
:root {
    --background-color: #ffffff;
    --text-color: #000000;
    --text-color-mobile: #222222;
    --subtext-color: #a0a0a0;
    --border-color: #e5e5e5;
    --nav-color: rgba(235, 235, 235, 0.2);

    --h3-weight: 500;
}

:root.dark {
    --background-color: #050505;
    --text-color: #ffffff;
    --text-color-mobile: #E5E5E5;
    --subtext-color: #a0a0a0;
    --border-color: #525252;
    --nav-color: rgba(0, 0, 0, 0.2);

    --h3-weight: 500;
}

body {
    margin: 0;
    background-color: var(--background-color);
}

/* Animation styles */
.fade {
    opacity: 0;
    transition: opacity 0.4s ease-out, transform 0.6s ease-out;
}

.fade.visible {
    opacity: 1;
}

/* Type stack */
h1 {
    margin: 32px 0 24px 0;
    font-family: 'Plus Jakarta Sans';
    font-size: 60px;
    font-weight: 600;
}

h2 {
    padding-top: 50px;
    padding-bottom: 12px;
    border-bottom: 1px solid #5d5d5d;
    font-family: 'Plus Jakarta Sans';
    font-size: 34px;
    font-weight: 500;
}

h3 {
    margin-top: 36px;
    line-height: 28px;
    font-family: 'Plus Jakarta Sans';
    font-size: 20px;
    font-weight: 600;
    font-weight: var(--h3-weight);
}

p {
    margin-top: 16px;
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    font-weight: 300;
}

li {
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    font-weight: 300;
}

h1,
h2,
h3,
p,
li {
    color: var(--text-color);
}

/* Top page styling */
.header-image-container {
    margin: 32px 8px;
}

.header-image {
    width: 100%;
    border-radius: 15px;
}

.content-container {
    max-width: 744px;
    margin: 0 auto;

    /* For mobile padding */
    padding: 0 10px;
}

.info-container {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    gap: 17px;
    width: 100%;
    margin-bottom: 48px;
}

.info-box {
    flex: 1 1 120px;
    border-top: 1px solid var(--border-color);
    text-decoration: none;
}

.light-card {
    background-color: #ffffff !important;
    box-shadow:
        0 1px 3px rgba(0, 0, 0, 0.08), /* small sharp shadow */
        0 4px 12px rgba(0, 0, 0, 0.06); /* wider, softer shadow */
}

.info-box.tldr {
    padding: 8px 8px;
    background-color: #161616;
    border-top: none;
    border-radius: 24px;
}

a {
    text-decoration: none;
}

.tldr-section {
    display: block;
    padding: 8px 12px;
    border-radius: 18px;
    transition: all 0.3s ease;
}

.tldr-section:hover {
    background-color: #1c1c1c;
}

.tldr-section.light:hover {
    background-color: #f3f3f3;
}

.tldr-title {
    margin-top: 0;
    margin-bottom: 0;
    color: var(--text-color);
    font-family: 'Ubuntu Mono', monospace !important;
    font-size: 14px;
}

.tldr-bullets {
    margin-top: 5px;
    margin-bottom: 0;
    color: var(--subtext-color);
    font-family: 'Ubuntu Mono', monospace !important;
    font-size: 14px;
}

.link {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    margin: 0;
}

.info-box.small {
    flex: 0 0 120px;
}

.info-box.large {
    flex: 2 1 350px;
}

.info-header {
    color: var(--text-color);
    font-family: 'Ubuntu Mono', monospace !important;
    font-size: 14px;
}

.info-content {
    margin: 0;
    color: var(--subtext-color);
    font-family: 'Ubuntu Mono', monospace !important;
    font-size: 14px;
}

#header {
    position: fixed;
    z-index: 1000;
    top: 16px;
    left: 50%;
    display: flex;
    gap: 60px;
    justify-content: space-around;
    transform: translateX(-50%);
    opacity: 1;
    transition: opacity 0.3s ease, transform 0.3s ease;
    background: var(--nav-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 13px;
    padding: 9px 60px;
}

#header.hidden {
    opacity: 0;
}

#header > a {
    color: var(--text-color);
    text-decoration: none;
    font-family: 'Plus Jakarta Sans';
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s ease;
}

#header > a:hover {
    color: #b1b1b1;
}


@media (max-width: 700px) {
    .info-container {
        flex-direction: column;
    }

    .info-box {
        flex: 1 1 90px;
    }

    h1 {
        font-size: 40px;
    }

    #header {
        position: fixed;
        width: 60%;
        z-index: 1000;
        top: 16px;
        left: 50%;
        display: flex;
        gap: 0px;
        justify-content: space-around;
        transform: translateX(-50%);
        opacity: 1;
        transition: opacity 0.3s ease, transform 0.3s ease;
        background: var(--nav-color);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-radius: 13px;
        padding: 9px 50px !important; 
    }

    p {
        font-weight: 400;
        color: var(--text-color-mobile)
    }
}

/* Article styling */
.sample {
    display: block;
    width: 100%;
    height: auto;
    margin-top: 24px;
    border-radius: 10px;
}

.border {
    border: 1px solid var(--border-color);
}

.subtext {
    margin: 13px 0;
    color: var(--subtext-color);
    font-family: 'Ubuntu Mono', monospace !important;
    font-size: 14px;
}

.section-icon {
    display: block;
    width: 100%;
    margin: 50px 0 -21px 0;
    color: var(--text-color);
    text-align: center;
    font-size: 51px;
}

hr {
    margin: 60px 0;
    border: 1px solid var(--border-color);
}

/* Footer content */
#footer-title {
    margin-bottom: 32px;
}

.related-work-header-img {
    width: 100%;
    border-radius: 30px;
}

.link-and-arrow {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.link-and-arrow:hover {
    opacity: 0.7;
}

.link-and-arrow > span {
    font-family: 'Open Sans', sans-serif;
    font-size: 14px;
    font-weight: bold;
}

.related-work-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 40px 0 100px 0;
}

/* Reused case study from homepage */
.case-study {
    display: flex;
    flex: 0 0 305px;
    flex-direction: column;
    max-width: 305px;
    text-decoration: none;
}

.case-study > h3 {
    margin: 8px 0;
}

.case-study > p {
    margin: 0;
    font-size: 14px;
}

.case-study-hero {
    border-radius: 30px;
}

.read-link {
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.read-link > p {
    margin-right: 6px;
    font-size: 14px;
    font-weight: 600;
}

.read-link:hover {
    opacity: 0.7;
}

.image-wrapper {
    position: relative;
    width: 100%;
    height: auto;
    border-radius: 30px;
    overflow: hidden;
}

.image-wrapper img {
    display: block;
    width: 100%;
    height: 100%;
    max-height: 560px;
    object-fit: cover;
    border-radius: 30px;
    transition: transform 0.4s ease;
}

.image-wrapper:hover img {
    transform: scale(1.03);
}