/* === Reset & Base === */

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

:root {
    --black: #1a1a1a;
    --white: #fafafa;
    --gray: #888;
    --rule: #e0e0e0;
    --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body: Georgia, 'Times New Roman', serif;
    --content-width: 640px;
    --nav-height: 48px;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    color: var(--black);
    background: var(--white);
    line-height: 1.6;
}

a {
    color: var(--black);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--gray);
}

/* === Magazine Container === */

.magazine {
    scroll-snap-type: y mandatory;
    overflow-y: scroll;
    height: 100vh;
    scroll-behavior: smooth;
}

.magazine.is-expanded {
    scroll-snap-type: none;
}

/* === Viewport Sections === */

.viewport {
    min-height: 100vh;
    scroll-snap-align: start;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    padding-bottom: calc(2rem + var(--nav-height));
}

.viewport__content {
    max-width: var(--content-width);
    width: 100%;
}

/* === Intro Viewport === */

.intro__name {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 0.25em;
}

.intro__title {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 7.5rem);
    font-weight: 900;
    line-height: 0.95;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: 0.3em;
}

.intro__bio {
    font-size: 1.125rem;
    color: var(--black);
    margin-bottom: 2rem;
    max-width: 480px;
}

.rule {
    border: none;
    border-top: 1px solid var(--rule);
    margin: 2rem 0;
}

.intro__projects {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.intro__project {
    font-size: 0.95rem;
    color: var(--gray);
}

.intro__project a {
    color: var(--black);
    font-weight: 700;
}

.label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray);
    border: 1px solid var(--rule);
    padding: 0.1em 0.4em;
    border-radius: 3px;
    vertical-align: middle;
    margin-left: 0.25rem;
}

/* === Article Cards === */

.card__header {
    cursor: pointer;
}

.card__title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 900;
    line-height: 0.95;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    margin-bottom: 0.3em;
    transition: font-size 0.4s ease;
}

.card__excerpt {
    font-size: 1.125rem;
    color: var(--black);
    max-width: 480px;
    margin-bottom: 1rem;
}

.card__date {
    font-size: 0.8rem;
    color: var(--gray);
    display: block;
}

/* === Article Expanded State === */

.card__body {
    display: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.card.is-expanded .card__body {
    display: block;
    opacity: 1;
}

.card.is-expanded .card__title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 0.5em;
}

.card__close {
    display: block;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray);
    cursor: pointer;
    padding: 0.5rem 0;
    margin-bottom: 1rem;
    font-family: var(--font-body);
    transition: color 0.2s ease;
}

.card__close:hover {
    color: var(--black);
}

/* Article body content styling */
.card__article-content {
    font-size: 1.125rem;
    line-height: 1.75;
}

.card__article-content p {
    margin-bottom: 1.5em;
}

.card__article-content h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 2em;
    margin-bottom: 0.75em;
}

.card__article-content h3 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

.card__article-content img {
    max-width: 100%;
    height: auto;
    margin: 2em 0;
    display: block;
}

.card__article-content blockquote {
    border-left: 3px solid var(--rule);
    padding-left: 1.25em;
    color: var(--gray);
    font-style: italic;
    margin: 1.5em 0;
}

.card__article-content code {
    font-size: 0.9em;
    background: #f0f0f0;
    padding: 0.15em 0.35em;
    border-radius: 3px;
}

.card__article-content pre {
    background: #f0f0f0;
    padding: 1.25em;
    border-radius: 4px;
    overflow-x: auto;
    margin: 1.5em 0;
}

.card__article-content pre code {
    background: none;
    padding: 0;
}

.card__article-content::after {
    content: '&';
    display: block;
    text-align: center;
    font-family: var(--font-display);
    font-style: italic;
    color: var(--gray);
    font-size: 1.1rem;
    line-height: 1;
    margin-top: 3em;
    margin-bottom: 4em;
    max-width: 180px;
    margin-left: auto;
    margin-right: auto;
    background:
        linear-gradient(var(--rule), var(--rule)) left center / calc(50% - 1em) 1px no-repeat,
        linear-gradient(var(--rule), var(--rule)) right center / calc(50% - 1em) 1px no-repeat;
}

/* === Portfolio article styles === */

.card__article-content hr {
    border: none;
    border-top: 1px solid var(--rule);
    margin: 2.5em 0;
}

.card__article-content audio {
    display: block;
    width: 100%;
    margin: 1em 0 1.5em;
}

.card__article-content h2 + p > img:first-child {
    max-width: 80px;
    border-radius: 16px;
    margin: 0 0 1em;
}

/* === Article Scrollbar === */

.article-scrollbar {
    position: fixed;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 30vh;
    z-index: 90;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.article-scrollbar.is-hidden {
    opacity: 0;
}

.article-scrollbar__track {
    position: absolute;
    inset: 0;
    background: var(--rule);
    border-radius: 2px;
    opacity: 0;
    transform: scaleY(0);
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.article-scrollbar__track.is-visible {
    opacity: 1;
    transform: scaleY(1);
}

.article-scrollbar__thumb {
    position: absolute;
    left: 0;
    width: 100%;
    background: var(--gray);
    border-radius: 2px;
    transition: top 0.1s ease, height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.article-scrollbar__thumb.is-dot {
    height: 6px !important;
    border-radius: 50%;
    width: 6px;
    left: -1.5px;
}

.article-scrollbar__thumb.is-done {
    opacity: 0;
}

/* === Bottom Nav Strip === */

.nav-strip {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--white);
    border-top: 1px solid var(--rule);
    z-index: 100;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.nav-strip__track {
    display: flex;
    gap: 1.5rem;
    padding: 0 2rem;
    overflow-x: auto;
    white-space: nowrap;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    width: 100%;
    position: relative;
}

.nav-strip__indicator {
    position: absolute;
    bottom: 0;
    height: 2px;
    background: var(--black);
    transition: left 0.3s cubic-bezier(0.22, 1, 0.36, 1), width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
    z-index: 1;
}

.nav-strip__track::-webkit-scrollbar {
    display: none;
}

.nav-strip__item {
    background: none;
    border: none;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--gray);
    cursor: pointer;
    padding: 0.5rem 0;
    white-space: nowrap;
    flex-shrink: 0;
    transition: color 0.2s ease;
}

.nav-strip__item:hover {
    color: var(--black);
}

.nav-strip__item.is-active {
    color: var(--black);
}

/* === Responsive === */

@media (max-width: 640px) {
    .viewport {
        padding: 1.5rem;
        padding-bottom: calc(1.5rem + var(--nav-height));
    }

    .nav-strip__track {
        padding: 0 1rem;
        gap: 1rem;
    }
}