/*
   PETER BALTAZÁR — PORTFOLIO 2026
   Editorial system: cool blue-grey paper, ink, one blue accent.
   Newsreader (display) · Inter (text) · IBM Plex Mono (meta)

   Variable and class names are kept compatible with the previous
   system so existing case-study markup restyles without edits.
*/

:root {
    --bg-color: #F2F6FC;
    --bg-dark: #E5EEF9;
    --text-main: #1c1b17;
    --text-dim: #5d594e;
    --accent-line: rgba(28, 27, 23, 0.14);
    --glass-bg: #F2F6FC;
    --glass-border: rgba(28, 27, 23, 0.1);
    --color-accent: #648AA9;

    --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-script: 'Newsreader', Georgia, serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', Menlo, monospace;

    --space-xs: 0.5rem;
    --space-s: 1rem;
    --space-m: 2rem;
    --space-l: 4rem;
    --space-xl: 7rem;
    --space-xxl: 10rem;

    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

::selection {
    background: var(--color-accent);
    color: var(--bg-color);
}

a {
    color: inherit;
}

img,
video {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 var(--space-m);
}

/* ---------- shared text utilities ---------- */

.meta,
.kicker {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-dim);
}

.kicker {
    color: var(--color-accent);
}

/* ---------- navigation ---------- */

nav {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: var(--space-s) 0;
    background: var(--glass-bg);
    border-bottom: 1px solid var(--accent-line);
}

.logo {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-decoration: none;
    color: var(--text-main);
}

.nav-links {
    display: flex;
    gap: var(--space-m);
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    text-decoration: none;
    color: var(--text-dim);
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--text-main);
}

.back-link {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    text-decoration: none;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color var(--transition);
}

.back-link:hover {
    color: var(--text-main);
}

/* ---------- case study: hero ---------- */

.project-hero {
    padding: var(--space-xl) 0 var(--space-l);
    border-bottom: 1px solid var(--accent-line);
    margin-bottom: var(--space-l);
}

.project-hero>span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-s);
}

.project-hero h1 {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(2.75rem, 6vw, 4.5rem);
    line-height: 1.02;
    letter-spacing: -0.015em;
    margin-bottom: var(--space-s);
}

.tagline {
    font-family: var(--font-script);
    font-style: italic;
    font-weight: 400;
    font-size: clamp(1.3rem, 2.5vw, 1.7rem);
    line-height: 1.35;
    color: var(--text-dim);
    max-width: 32em;
}

/* ---------- case study: layout ---------- */

.content-grid {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) 2.4fr;
    gap: var(--space-l) var(--space-xl);
    margin-bottom: var(--space-xl);
}

.sidebar {
    position: sticky;
    top: 90px;
    height: fit-content;
    display: flex;
    flex-direction: column;
    gap: var(--space-m);
}

.sidebar-group h4 {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-dim);
    margin-bottom: 0.6rem;
}

.sidebar-group p {
    font-size: 0.9rem;
    line-height: 1.55;
    color: var(--text-main);
}

.sidebar-group ul {
    list-style: none;
}

.sidebar-group li {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-dim);
    margin-bottom: 0.3rem;
}

.sidebar-group a {
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}

.sidebar-group a:hover {
    border-bottom-color: var(--color-accent);
}

/* ---------- case study: article ---------- */

.main-content h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.75rem;
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin: var(--space-l) 0 var(--space-s);
    padding-top: var(--space-m);
    border-top: 1px solid var(--accent-line);
}

.main-content h3:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.main-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin: var(--space-m) 0 0.75rem;
}

.main-content p {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-dim);
    margin-bottom: 1.25rem;
    max-width: 42em;
}

.main-content ul,
.main-content ol {
    margin: 0 0 1.5rem;
    padding-left: 1.25rem;
    max-width: 40em;
}

.main-content li {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-dim);
    margin-bottom: 0.6rem;
}

.main-content li::marker {
    color: var(--color-accent);
}

.main-content strong,
.main-content li strong {
    color: var(--text-main);
    font-weight: 600;
}

.main-content em {
    font-family: var(--font-script);
    font-style: italic;
    color: var(--text-main);
}

.main-content a {
    color: var(--color-accent);
}

/* ---------- case study: media + cards ---------- */

.image-box,
.video-box {
    width: 100%;
    background: var(--bg-dark);
    border: 1px solid var(--accent-line);
    border-radius: 3px;
    margin: var(--space-m) 0 var(--space-l);
    overflow: hidden;
}

.image-box img,
.video-box video {
    width: 100%;
    height: auto;
}

.metric-card {
    border: 1px solid var(--accent-line);
    border-radius: 3px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--bg-color);
}

.metric-card strong {
    display: block;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 0.4rem;
}

.quote-block {
    border-left: 2px solid var(--color-accent);
    padding: 0.25rem 0 0.25rem 1.5rem;
    margin: var(--space-m) 0;
    font-family: var(--font-script);
    font-style: italic;
    font-size: 1.2rem;
    line-height: 1.5;
    color: var(--text-main);
    max-width: 36em;
}

.quote-block cite {
    display: block;
    margin-top: 0.75rem;
    font-family: var(--font-mono);
    font-style: normal;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-dim);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: var(--space-s);
    margin: var(--space-m) 0;
}

.feature-card,
.feature-item {
    border: 1px solid var(--accent-line);
    border-radius: 3px;
    padding: 1.25rem;
    background: var(--bg-color);
}

.feature-card h4,
.feature-item h4 {
    margin-top: 0;
}

.features-list {
    list-style: none;
    padding-left: 0 !important;
}

.features-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--accent-line);
    margin-bottom: 0;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: var(--space-s) 0 var(--space-m);
}

.tech-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    border: 1px solid var(--accent-line);
    border-radius: 3px;
    padding: 0.25rem 0.6rem;
}

/* ---------- index: hero ---------- */

.hero {
    padding: var(--space-xl) 0 var(--space-l);
}

.hero .kicker {
    display: block;
    margin-bottom: var(--space-m);
}

.hero h1 {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(2.6rem, 6.5vw, 5rem);
    line-height: 1.06;
    letter-spacing: -0.02em;
    max-width: 15em;
    margin-bottom: var(--space-m);
    text-wrap: balance;
}

.hero h1 em {
    font-style: italic;
    font-weight: 500;
    color: var(--color-accent);
}

.hero-desc {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-dim);
    max-width: 36em;
    margin-bottom: var(--space-m);
}

.hero-desc strong {
    color: var(--text-main);
    font-weight: 500;
}

.hero-desc a {
    color: var(--text-main);
    text-decoration-color: var(--color-accent);
    text-underline-offset: 3px;
}

.status-line {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-dim);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--color-accent);
}

/* ---------- index: section scaffolding ---------- */

.section {
    padding: var(--space-l) 0;
    border-top: 1px solid var(--accent-line);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--space-m);
}

/* ---------- index: featured project ---------- */

.feature-work {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: var(--space-m) var(--space-l);
    align-items: start;
    text-decoration: none;
    color: inherit;
}

.feature-work h3 {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(1.9rem, 3.5vw, 2.6rem);
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin-bottom: 0.75rem;
    transition: color var(--transition);
}

.feature-work:hover h3 {
    color: var(--color-accent);
}

.feature-work .tagline {
    font-size: 1.2rem;
    margin-bottom: var(--space-s);
}

.feature-work-body p {
    font-size: 0.98rem;
    line-height: 1.7;
    color: var(--text-dim);
    margin-bottom: var(--space-s);
}

.feature-work-facts {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-s) var(--space-m);
    margin-top: var(--space-s);
}

.feature-work-facts div h4 {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-dim);
    margin-bottom: 0.35rem;
}

.feature-work-facts div p {
    font-size: 0.85rem;
    color: var(--text-main);
    margin: 0;
}

.read-cta {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
}

/* ---------- index: work list ---------- */

.work-list {
    display: flex;
    flex-direction: column;
}

.work-row {
    display: grid;
    grid-template-columns: 3rem 1.4fr 1fr 4rem;
    gap: var(--space-s);
    align-items: baseline;
    padding: 1.4rem 0;
    border-top: 1px solid var(--accent-line);
    text-decoration: none;
    color: inherit;
}

.work-row:first-child {
    border-top: none;
}

.work-row-id {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
}

.work-row-title {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1.5rem;
    line-height: 1.15;
    letter-spacing: -0.01em;
    transition: color var(--transition);
}

.work-row:hover .work-row-title {
    color: var(--color-accent);
}

.work-row-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.work-row-year {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-dim);
    text-align: right;
}

.lab-list .work-row-title {
    font-size: 1.15rem;
}

/* ---------- index: practice ---------- */

.practice-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-l);
}

.practice-grid h3 {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 500;
    font-size: 1.4rem;
    margin-bottom: var(--space-s);
}

.practice-grid ul {
    list-style: none;
}

.practice-grid li {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-dim);
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--accent-line);
}

.practice-grid li strong {
    color: var(--text-main);
    font-weight: 500;
}

/* ---------- footer ---------- */

footer {
    border-top: 1px solid var(--accent-line);
    padding: var(--space-l) 0 var(--space-m);
}

.footer-cta {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.1;
    letter-spacing: -0.015em;
    max-width: 18em;
    margin-bottom: var(--space-s);
}

.footer-cta em {
    font-style: italic;
    color: var(--color-accent);
}

.footer-cta a {
    text-decoration: none;
    border-bottom: 2px solid var(--color-accent);
    transition: color var(--transition);
}

.footer-cta a:hover {
    color: var(--color-accent);
}

.footer-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    flex-wrap: wrap;
    gap: var(--space-s);
    margin-top: var(--space-l);
}

.social-links {
    display: flex;
    gap: var(--space-m);
}

.social-links a {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    text-decoration: none;
    color: var(--text-dim);
    transition: color var(--transition);
}

.social-links a:hover {
    color: var(--text-main);
}

.colophon {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.04em;
    color: var(--text-dim);
}

/* ---------- about ---------- */

.about-hero {
    padding: var(--space-xl) 0 var(--space-l);
    border-bottom: 1px solid var(--accent-line);
    margin-bottom: var(--space-l);
}

.about-hero span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-s);
}

.about-hero h1 {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(2.6rem, 6vw, 4.5rem);
    line-height: 1.05;
    letter-spacing: -0.015em;
    max-width: 14em;
}

.profile-img {
    max-width: 380px;
    border: 1px solid var(--accent-line);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: var(--space-m);
    filter: saturate(0.9);
}

.main-content h2 {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(1.7rem, 3vw, 2.3rem);
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-m);
}

.principle-list {
    list-style: none;
    padding-left: 0 !important;
    margin: var(--space-m) 0 var(--space-l);
    max-width: 42em;
}

.principle-list li {
    display: grid;
    grid-template-columns: 2.5rem 1fr;
    gap: var(--space-s);
    padding: var(--space-s) 0;
    border-top: 1px solid var(--accent-line);
    margin-bottom: 0;
}

.principle-list li:last-child {
    border-bottom: 1px solid var(--accent-line);
}

.principle-num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-accent);
    padding-top: 0.4rem;
}

.principle-list h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.principle-list p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {

    .content-grid,
    .feature-work,
    .practice-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--space-m) var(--space-l);
    }

    .work-row {
        grid-template-columns: 2.5rem 1fr 4rem;
    }

    .work-row-desc {
        grid-column: 2;
    }

    .work-row-year {
        grid-row: 1;
        grid-column: 3;
    }
}

@media (max-width: 600px) {
    :root {
        --space-l: 3rem;
        --space-xl: 5rem;
    }

    .nav-links {
        gap: var(--space-s);
    }

    .footer-meta {
        flex-direction: column;
    }
}