/* Paleta: papel, tinta e um único tom de destaque (verde-petróleo). */
:root {
    --paper: #f7f5f0;
    --ink: #1b1a17;
    --ink-2: #57534b;
    --rule: #d9d4c8;
    --accent: #0b5d55;
    --serif: "Newsreader", Georgia, "Times New Roman", serif;
    --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
    --measure: 46rem;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --paper: #161614;
        --ink: #e8e4da;
        --ink-2: #a39d90;
        --rule: #34322d;
        --accent: #6fbdb2;
        color-scheme: dark;
    }
}

:root[data-theme="dark"] {
    --paper: #161614;
    --ink: #e8e4da;
    --ink-2: #a39d90;
    --rule: #34322d;
    --accent: #6fbdb2;
    color-scheme: dark;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 1.0625rem;
    line-height: 1.6;
}

a {
    color: var(--accent);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.18em;
}

a:hover {
    text-decoration-thickness: 2px;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

h1,
h2,
h3 {
    font-family: var(--serif);
    font-weight: 500;
    line-height: 1.2;
    margin: 0;
}

.wrap {
    width: min(var(--measure), 100% - 2rem);
    margin-inline: auto;
}

[id] {
    scroll-margin-top: 4.5rem;
}

/* Cabeçalho */
.masthead {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
}

.masthead-inner {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    height: 3.5rem;
}

.mark {
    color: var(--ink);
    display: inline-flex;
}

.masthead nav {
    display: flex;
    gap: 1.25rem;
    margin-left: auto;
    overflow-x: auto;
    scrollbar-width: none;
}

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

.masthead nav a {
    color: var(--ink-2);
    text-decoration: none;
    font-size: 0.9rem;
    white-space: nowrap;
}

.masthead nav a:hover {
    color: var(--ink);
}

.theme-toggle {
    flex: none;
    width: 1.75rem;
    height: 1.75rem;
    display: grid;
    place-items: center;
    padding: 0;
    border: 1px solid var(--rule);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
}

.theme-toggle-dot {
    width: 0.7rem;
    height: 0.7rem;
    border-radius: 50%;
    background: linear-gradient(90deg, var(--ink) 50%, transparent 50%);
    border: 1px solid var(--ink);
}

/* Abertura */
.intro {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2.5rem;
    align-items: start;
    padding: 4.5rem 0 3.5rem;
    border-bottom: 1px solid var(--rule);
}

.intro h1 {
    font-size: clamp(2.3rem, 6vw, 3.25rem);
    letter-spacing: -0.01em;
}

.role {
    margin: 0.6rem 0 0;
    color: var(--ink-2);
    font-size: 1rem;
}

.lede {
    margin: 1.6rem 0 0;
    font-family: var(--serif);
    font-size: 1.3rem;
    line-height: 1.5;
    max-width: 34rem;
}

.intro-links {
    margin: 1.6rem 0 0;
    font-size: 0.95rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.6rem;
    color: var(--ink-2);
}

.portrait {
    width: 168px;
    height: 210px;
    object-fit: cover;
    object-position: center 25%;
    filter: grayscale(1) contrast(1.05);
    border: 1px solid var(--rule);
}

/* Blocos */
.block {
    padding: 3rem 0;
    border-bottom: 1px solid var(--rule);
}

.block:last-child {
    border-bottom: 0;
    padding-bottom: 5rem;
}

.block-head {
    margin-bottom: 2rem;
}

.block-head h2 {
    font-size: 1.75rem;
}

.block-note {
    margin: 0.5rem 0 0;
    color: var(--ink-2);
    font-size: 0.95rem;
}

/* Projetos */
.projects {
    list-style: none;
    margin: 0;
    padding: 0;
}

.project {
    display: grid;
    grid-template-columns: 3rem 1fr;
    gap: 0 1rem;
}

.project + .project {
    margin-top: 2.75rem;
}

.project-num {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--accent);
    padding-top: 0.35rem;
}

.project h3 {
    font-size: 1.35rem;
}

.project-summary {
    margin: 0.5rem 0 0;
}

.project-facts {
    margin: 1.1rem 0 0;
    display: grid;
    grid-template-columns: 7.5rem 1fr;
    gap: 0.5rem 1rem;
    font-size: 0.97rem;
}

.project-facts dt {
    color: var(--ink-2);
    font-size: 0.85rem;
    padding-top: 0.12rem;
}

.project-facts dd {
    margin: 0;
}

.stack {
    margin: 1rem 0 0;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--ink-2);
}

.project-links {
    margin: 0.6rem 0 0;
    display: flex;
    gap: 1rem;
    font-size: 0.95rem;
}

/* Experiência, formação, publicações */
.entry {
    display: grid;
    grid-template-columns: 9.5rem 1fr;
    gap: 0 1.5rem;
}

.entry + .entry {
    margin-top: 2rem;
}

.entry-date {
    margin: 0;
    padding-top: 0.25rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--ink-2);
}

.entry h3 {
    font-size: 1.2rem;
}

.entry h3 a {
    color: inherit;
}

.entry-org {
    margin: 0.2rem 0 0;
    color: var(--ink-2);
    font-size: 0.95rem;
}

.entry-authors {
    margin: 0.35rem 0 0;
    font-size: 0.92rem;
}

.entry-body p:not(.entry-org):not(.entry-authors) {
    margin: 0.6rem 0 0;
    font-size: 0.97rem;
}

.entry ul {
    margin: 0.7rem 0 0;
    padding-left: 1.1rem;
    font-size: 0.97rem;
}

.entry li + li {
    margin-top: 0.25rem;
}

.entry li::marker {
    color: var(--ink-2);
}

/* Ferramentas */
.tools {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.97rem;
}

.tools th,
.tools td {
    text-align: left;
    vertical-align: top;
    padding: 0.7rem 0;
    border-top: 1px solid var(--rule);
}

.tools tr:first-child th,
.tools tr:first-child td {
    border-top: 0;
}

.tools th {
    width: 11rem;
    padding-right: 1.5rem;
    font-weight: 500;
    color: var(--ink-2);
    font-size: 0.9rem;
}

/* Contato */
.contact-line {
    margin: 0;
    font-family: var(--serif);
    font-size: 1.25rem;
    line-height: 1.5;
    max-width: 36rem;
}

.contact-line + .contact-line {
    margin-top: 0.6rem;
}

/* Telas pequenas */
@media (max-width: 640px) {
    body {
        font-size: 1rem;
    }

    .wrap {
        width: calc(100% - 2rem);
    }

    .masthead-inner {
        gap: 1rem;
    }

    .masthead nav {
        gap: 1rem;
    }

    .intro {
        grid-template-columns: 1fr;
        gap: 1.75rem;
        padding: 2.5rem 0 2.5rem;
    }

    .portrait {
        grid-row: 1;
        width: 96px;
        height: 120px;
    }

    .lede {
        font-size: 1.15rem;
    }

    .project {
        grid-template-columns: 1fr;
    }

    .project-num {
        padding: 0 0 0.3rem;
    }

    .project-facts,
    .entry {
        grid-template-columns: 1fr;
    }

    .project-facts dd {
        margin-bottom: 0.4rem;
    }

    .entry-date {
        padding: 0 0 0.3rem;
    }

    .tools th,
    .tools td {
        display: block;
        width: auto;
        padding: 0;
    }

    .tools th {
        padding-top: 0.7rem;
    }

    .tools td {
        border-top: 0;
        padding-bottom: 0.7rem;
    }
}