/* ==========================================================================
   Samuel Souza Leite — portfólio
   Direção visual: dossiê editorial impresso (papel / tinta / vermelho-tijolo)
   ========================================================================== */

:root {
    --paper: #f2ede3;
    --paper-2: #eae4d7;
    --ink: #16140f;
    --ink-2: #221f18;
    --accent: #bf3a1d;
    --accent-2: #1f4534;

    /* tokens semânticos — sobrescritos em .invert */
    --bg: var(--paper);
    --fg: var(--ink);
    --muted: #7a7365;
    --rule: rgba(22, 20, 15, 0.16);
    --rule-strong: rgba(22, 20, 15, 0.4);
    --hl: var(--accent);

    --display: "Instrument Serif", Georgia, serif;
    --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
    --mono: "DM Mono", "SFMono-Regular", Consolas, monospace;

    --shell: 1240px;
    --pad: clamp(1.25rem, 5vw, 3.5rem);
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

.invert {
    --bg: var(--ink);
    --fg: var(--paper);
    --muted: #918a7b;
    --rule: rgba(242, 237, 227, 0.18);
    --rule-strong: rgba(242, 237, 227, 0.45);
    --hl: #e0552c;
}

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

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

body {
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--paper);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    cursor: pointer;
}

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

/* Granulado de papel sobre toda a página */
.grain {
    position: fixed;
    inset: 0;
    z-index: 50;
    pointer-events: none;
    opacity: 0.5;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.22'/%3E%3C/svg%3E");
}

/* --------------------------------------------------------------- primitivas */
.shell {
    width: 100%;
    max-width: var(--shell);
    margin: 0 auto;
    padding: 0 var(--pad);
}

.section {
    position: relative;
    padding: clamp(4.5rem, 9vw, 8.5rem) 0;
    background: var(--bg);
    color: var(--fg);
}

.section--band {
    --bg: var(--paper-2);
}

.sec-num,
.nav-num,
.field-num,
.work-num,
.hero-status-label,
.skill-cat,
.contact-label,
.stamp,
.form-status,
.footer-bar,
.lang-btn {
    font-family: var(--mono);
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 0.68rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 46px;
    padding: 0 1.5rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border: 1px solid var(--fg);
    transition: background 0.35s var(--ease), color 0.35s var(--ease),
        transform 0.35s var(--ease), border-color 0.35s var(--ease);
}

.btn-solid {
    background: var(--fg);
    color: var(--bg);
}

.btn-solid:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--paper);
}

.btn-ghost {
    background: transparent;
    color: var(--fg);
}

.btn-ghost:hover {
    background: var(--fg);
    color: var(--bg);
}

/* Link com sublinhado que se desenha */
.link-arrow {
    position: relative;
    display: inline-block;
    font-size: 0.94rem;
    padding-bottom: 2px;
}

.link-arrow::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

.link-arrow:hover {
    color: var(--hl);
}

.link-arrow:hover::after {
    transform: scaleX(1);
}

/* ------------------------------------------------------------------ masthead */
.masthead {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(242, 237, 227, 0.88);
    backdrop-filter: blur(10px) saturate(1.1);
    border-bottom: 1px solid var(--rule-strong);
}

.masthead-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    height: 68px;
    max-width: var(--shell);
    margin: 0 auto;
    padding: 0 var(--pad);
}

.wordmark {
    display: flex;
    align-items: baseline;
    gap: 0.7rem;
}

.wordmark-mark {
    font-family: var(--display);
    font-size: 1.5rem;
    letter-spacing: 0.02em;
    line-height: 1;
}

.wordmark-mark span {
    color: var(--accent);
}

.masthead-nav ul {
    display: flex;
    gap: clamp(1rem, 2.4vw, 2.1rem);
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: baseline;
    gap: 0.4rem;
    font-size: 0.86rem;
    font-weight: 500;
    padding: 4px 0;
    color: var(--ink);
    transition: color 0.3s var(--ease);
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.nav-link.active::after,
.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-num {
    display: none;
    font-family: var(--mono);
    font-style: normal;
    font-size: 0.7rem;
    color: var(--muted);
}

.masthead-tools {
    display: flex;
    align-items: center;
    gap: 1.1rem;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.lang-btn {
    padding: 2px 1px;
    color: var(--muted);
    border-bottom: 1px solid transparent;
    transition: 0.25s var(--ease);
}

.lang-btn:hover {
    color: var(--ink);
}

.lang-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.lang-sep {
    color: var(--rule-strong);
    font-family: var(--mono);
    font-size: 0.68rem;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    padding: 6px 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 1.5px;
    background: var(--ink);
    transition: transform 0.35s var(--ease), opacity 0.25s;
}

.menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(3.75px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-3.75px) rotate(-45deg);
}

/* Régua de progresso de leitura */
.progress {
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
}

/* ---------------------------------------------------------------------- hero */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding: calc(68px + clamp(2.5rem, 7vw, 5rem)) 0 clamp(3rem, 7vw, 5rem);
    background:
        radial-gradient(120% 90% at 88% 8%, rgba(191, 58, 29, 0.09), transparent 60%),
        var(--paper);
}

.hero::after {
    /* trama de pontos discreta, como retícula de impressão */
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.4;
    background-image: radial-gradient(rgba(22, 20, 15, 0.16) 1px, transparent 1px);
    background-size: 22px 22px;
    mask-image: linear-gradient(to bottom, transparent 55%, #000 100%);
    -webkit-mask-image: linear-gradient(to bottom, transparent 55%, #000 100%);
}

.hero-shell {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    column-gap: 1.5rem;
    row-gap: clamp(1.1rem, 2.6vw, 2rem);
    align-items: start;
}

.hero-name {
    grid-column: 1 / span 8;
    grid-row: 2;
    font-family: var(--display);
    font-weight: 400;
    line-height: 0.82;
    letter-spacing: -0.015em;
}

.hero-name span {
    display: block;
}

.hero-name-first {
    font-size: clamp(3.6rem, 14.2vw, 9.8rem);
}

.hero-name-last {
    font-size: clamp(3rem, 11.7vw, 8.1rem);
    font-style: italic;
    color: var(--accent);
    margin-left: 0.09em;
}

.hero-status {
    grid-column: 1 / span 7;
    grid-row: 3;
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.8rem;
    padding-top: clamp(0.5rem, 2vw, 1.4rem);
    border-top: 1px solid var(--rule);
}

.hero-status-label {
    color: var(--muted);
    padding-top: 0.3rem;
}

.hero-status-value {
    font-family: var(--sans);
    font-size: clamp(1.05rem, 2.1vw, 1.45rem);
    font-weight: 500;
    letter-spacing: -0.01em;
}

.cursor {
    display: inline-block;
    width: 0.5em;
    height: 1em;
    margin-left: 0.12em;
    vertical-align: -0.12em;
    background: var(--accent);
    animation: blink 1.05s steps(1, end) infinite;
}

.hero-description {
    grid-column: 1 / span 5;
    grid-row: 4;
    max-width: 34ch;
    font-size: 1rem;
    line-height: 1.75;
    color: var(--ink-2);
}

.hero-links {
    grid-column: 1 / span 5;
    grid-row: 5;
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
}

.hero-social {
    grid-column: 1 / span 5;
    grid-row: 6;
    display: flex;
    flex-wrap: wrap;
    gap: 1.6rem;
    padding-top: 0.4rem;
}

/* retrato tratado como foto impressa */
.portrait {
    grid-column: 9 / -1;
    grid-row: 2 / span 5;
    position: relative;
    align-self: end;
}

.portrait-frame {
    position: relative;
    aspect-ratio: 4 / 5;
    border: 1px solid var(--ink);
    background: var(--paper-2);
    overflow: hidden;
    transform: rotate(1.4deg);
    transition: transform 0.6s var(--ease);
}

.portrait-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--accent);
    opacity: 0.14;
    mix-blend-mode: multiply;
    transition: opacity 0.6s var(--ease);
    pointer-events: none;
}

.portrait-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 28%;
    filter: grayscale(1) contrast(1.06);
    transition: filter 0.6s var(--ease), transform 0.9s var(--ease);
}

.portrait:hover .portrait-frame {
    transform: rotate(0deg);
}

.portrait:hover .portrait-frame::after {
    opacity: 0;
}

.portrait:hover .portrait-frame img {
    filter: grayscale(0) contrast(1);
    transform: scale(1.02);
}

.stamp {
    position: absolute;
    top: -0.9rem;
    left: -1.1rem;
    z-index: 2;
    padding: 0.45rem 0.7rem;
    color: var(--accent);
    border: 1.5px solid var(--accent);
    background: var(--paper);
    transform: rotate(-7deg);
    letter-spacing: 0.1em;
}

/* -------------------------------------------------------- cabeçalho de seção */
.sec-head {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: baseline;
    gap: 0.9rem 1.4rem;
    padding-bottom: 1rem;
    margin-bottom: clamp(2.2rem, 5vw, 3.6rem);
    border-bottom: 1px solid var(--rule-strong);
}

.sec-num {
    color: var(--hl);
}

.sec-head h2 {
    font-family: var(--display);
    font-size: clamp(2rem, 5.4vw, 3.6rem);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.01em;
}

.sec-sub {
    justify-self: end;
    max-width: 30ch;
    text-align: right;
    font-size: 0.86rem;
    color: var(--muted);
}

/* --------------------------------------------------------------------- sobre */
.about-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    column-gap: clamp(2rem, 6vw, 5rem);
    row-gap: 2.6rem;
    align-items: start;
}

.about-lead {
    grid-column: 1;
    font-family: var(--display);
    font-size: clamp(1.5rem, 3.4vw, 2.5rem);
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.about-lead::first-letter {
    color: var(--accent);
}

.about-body {
    grid-column: 2;
    grid-row: 1 / span 2;
    display: grid;
    gap: 1.1rem;
    max-width: 46ch;
    color: var(--ink-2);
}

.about-body p {
    line-height: 1.85;
}

.about-meta {
    grid-column: 1;
    display: grid;
    gap: 0;
    align-self: start;
    border-top: 1px solid var(--rule);
}

.about-meta > div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--rule);
}

.about-meta dt {
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

.about-meta dd {
    font-size: 0.95rem;
    font-weight: 500;
    text-align: right;
}

/* ------------------------------------------------------------ especializações */
.fields {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    column-gap: clamp(1.5rem, 4vw, 3.5rem);
    border-top: 1px solid var(--rule);
}

.field {
    position: relative;
    padding: 1.9rem 0 2rem;
    border-bottom: 1px solid var(--rule);
}

.field-num {
    display: block;
    margin-bottom: 1.6rem;
    color: var(--muted);
    transition: color 0.35s var(--ease);
}

.field h3 {
    font-family: var(--display);
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 0.6rem;
    transition: transform 0.4s var(--ease);
}

.field p {
    max-width: 30ch;
    font-size: 0.92rem;
    line-height: 1.75;
    color: var(--muted);
}

.field:hover .field-num {
    color: var(--accent);
}

.field:hover h3 {
    transform: translateX(6px);
}

/* ------------------------------------------------------------------ projetos */
.works {
    margin: 0 -1.1rem;
}

.work {
    position: relative;
    isolation: isolate;
    display: grid;
    grid-template-columns: 3.2rem minmax(0, 1fr) 11rem 10.5rem;
    align-items: baseline;
    gap: 1.5rem;
    padding: 1.75rem 1.1rem;
    border-bottom: 1px solid var(--rule);
    transition: color 0.4s var(--ease);
}

.work::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: var(--fg);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.45s var(--ease);
}

.work:hover {
    color: var(--bg);
}

.work:hover::before {
    transform: scaleY(1);
}

.work-num {
    font-size: 0.72rem;
    color: var(--hl);
    transition: color 0.4s var(--ease);
}

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

.work-title {
    font-family: var(--display);
    font-size: clamp(1.45rem, 3vw, 2.1rem);
    font-weight: 400;
    line-height: 1.05;
}

.work-desc {
    max-width: 42ch;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--muted);
    transition: color 0.4s var(--ease);
}

.work:hover .work-desc {
    color: rgba(22, 20, 15, 0.72);
}

.work-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem 0.55rem;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    transition: color 0.4s var(--ease);
}

.work-stack li:not(:last-child)::after {
    content: " /";
    color: var(--hl);
}

.work:hover .work-stack {
    color: rgba(22, 20, 15, 0.6);
}

.work-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.4rem 1.2rem;
    justify-content: flex-end;
    text-align: right;
}

.work-link {
    position: relative;
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding-bottom: 3px;
    white-space: nowrap;
}

.work-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(1);
    transform-origin: left;
    transition: transform 0.35s var(--ease);
}

.work-link:hover::after {
    transform: scaleX(0);
}

.works-cta {
    display: flex;
    justify-content: flex-end;
    margin-top: clamp(2rem, 4vw, 3rem);
}

/* ---------------------------------------------------------------- habilidades */
.skill-item {
    border-bottom: 1px solid var(--rule);
}

.skill-toggle {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto 1.6rem;
    align-items: center;
    gap: 1.5rem;
    width: 100%;
    padding: 1.15rem 0.9rem;
    text-align: left;
    transition: padding-left 0.4s var(--ease), color 0.3s var(--ease);
}

.skill-name {
    font-family: var(--display);
    font-size: clamp(1.35rem, 2.8vw, 1.95rem);
    line-height: 1.1;
}

.skill-cat {
    color: var(--muted);
    transition: color 0.3s var(--ease);
}

.skill-sign {
    position: relative;
    width: 14px;
    height: 14px;
    justify-self: end;
}

.skill-sign::before,
.skill-sign::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    width: 14px;
    height: 1.5px;
    background: currentColor;
    transition: transform 0.4s var(--ease);
}

.skill-sign::after {
    transform: rotate(90deg);
}

.skill-toggle:hover {
    padding-left: 1.5rem;
    color: var(--accent);
}

.skill-toggle:hover .skill-cat {
    color: var(--accent);
}

.skill-item.active .skill-toggle {
    color: var(--accent);
}

.skill-item.active .skill-sign::after {
    transform: rotate(0deg);
}

.skill-panel {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.45s var(--ease);
}

.skill-item.active .skill-panel {
    grid-template-rows: 1fr;
}

.skill-panel-inner {
    overflow: hidden;
}

.skill-panel-text {
    max-width: 58ch;
    padding: 0 0.9rem 1.6rem;
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--ink-2);
}

/* -------------------------------------------------------------------- contato */
.contact-grid {
    display: grid;
    grid-template-columns: 0.85fr 1fr;
    column-gap: clamp(2rem, 6vw, 5rem);
    row-gap: 3rem;
    align-items: start;
}

.contact-lead {
    font-family: var(--display);
    font-size: clamp(1.8rem, 4vw, 2.9rem);
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin-bottom: 2.2rem;
}

.contact-list {
    border-top: 1px solid var(--rule);
}

.contact-list li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1.2rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--rule);
}

.contact-label {
    color: var(--muted);
    flex-shrink: 0;
}

.contact-list a {
    font-size: 0.9rem;
    text-align: right;
    overflow-wrap: anywhere;
}

.contact-form {
    display: grid;
    gap: 0.4rem;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem 1.5rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.95rem 0.2rem;
    font-family: var(--sans);
    font-size: 0.95rem;
    color: var(--ink);
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--rule-strong);
    outline: none;
    transition: border-color 0.3s var(--ease);
    resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--accent);
}

.form-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.4rem;
}

.form-status {
    color: var(--muted);
    letter-spacing: 0.05em;
}

.form-status.success {
    color: var(--accent-2);
}

.form-status.error {
    color: var(--accent);
}

/* --------------------------------------------------------------------- footer */
.footer {
    position: relative;
    background: var(--ink);
    color: var(--paper);
    overflow: hidden;
}

.footer-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
    color: rgba(242, 237, 227, 0.55);
}

/* ---------------------------------------------------------------- modal vídeo */
.video-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1rem, 4vw, 2.5rem);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s var(--ease), visibility 0.35s;
}

.video-modal.open {
    opacity: 1;
    visibility: visible;
}

.video-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(22, 20, 15, 0.82);
    backdrop-filter: blur(4px);
}

.video-modal-box {
    position: relative;
    z-index: 1;
    width: min(900px, 100%);
    max-height: 90vh;
    overflow-y: auto;
    background: var(--paper);
    border: 1px solid var(--ink);
    box-shadow: 14px 14px 0 var(--accent);
    transform: translateY(18px);
    transition: transform 0.45s var(--ease);
}

.video-modal.open .video-modal-box {
    transform: translateY(0);
}

.video-modal-close {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2;
    width: 46px;
    height: 46px;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--paper);
    background: var(--ink);
    transition: background 0.3s var(--ease);
}

.video-modal-close:hover {
    background: var(--accent);
}

.video-modal-player {
    aspect-ratio: 16 / 9;
    background: #0b0a08;
    border-bottom: 1px solid var(--ink);
}

.video-modal-player video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.video-modal-info {
    padding: clamp(1.4rem, 3vw, 2.2rem);
}

.video-modal-info h3 {
    font-family: var(--display);
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 0.9rem;
}

.video-modal-info p {
    max-width: 64ch;
    line-height: 1.8;
    color: var(--ink-2);
}

body.modal-open {
    overflow: hidden;
}

body.nav-open {
    overflow: hidden;
}

/* --------------------------------------------------------------------- motion */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
    transition-delay: calc(var(--d, 0) * 90ms);
}

.reveal.show {
    opacity: 1;
    transform: none;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* ----------------------------------------------------------------- responsivo */
@media (max-width: 1080px) {
    .work {
        grid-template-columns: 2.6rem minmax(0, 1fr) 9rem;
    }

    .work-actions {
        grid-column: 2 / -1;
        justify-content: flex-start;
        text-align: left;
        margin-top: 0.9rem;
    }
}

@media (max-width: 940px) {
    .masthead-nav {
        position: fixed;
        top: 68px;
        left: 0;
        width: 100%;
        height: calc(100svh - 68px);
        overflow: hidden;
        pointer-events: none;
    }

    .masthead-nav .nav-menu {
        flex-direction: column;
        gap: 0;
        height: 100%;
        padding: clamp(1.5rem, 6vw, 3rem) var(--pad);
        background: var(--paper);
        border-top: 1px solid var(--rule);
        transform: translateY(-101%);
        transition: transform 0.5s var(--ease);
        overflow-y: auto;
    }

    .masthead-nav .nav-menu.open {
        transform: translateY(0);
        pointer-events: auto;
    }

    .nav-menu li {
        border-bottom: 1px solid var(--rule);
    }

    .nav-link {
        gap: 1.1rem;
        width: 100%;
        padding: 1.05rem 0;
        font-family: var(--display);
        font-size: 1.9rem;
        font-weight: 400;
    }

    .nav-link::after {
        display: none;
    }

    .nav-num {
        display: inline;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-name,
    .hero-status,
    .hero-description,
    .hero-links,
    .hero-social {
        grid-column: 1 / -1;
        grid-row: auto;
    }

    .portrait {
        grid-column: 1 / span 7;
        grid-row: auto;
        max-width: 340px;
        margin-top: 0.5rem;
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .about-lead,
    .about-body,
    .about-meta {
        grid-column: 1;
        grid-row: auto;
        max-width: 62ch;
    }

    .fields {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 700px) {
    .sec-head {
        grid-template-columns: auto 1fr;
    }

    .sec-sub {
        grid-column: 1 / -1;
        justify-self: start;
        text-align: left;
        max-width: 40ch;
    }

    .hero-description {
        max-width: none;
    }

    .portrait {
        grid-column: 1 / -1;
        max-width: 290px;
    }

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

    .field {
        display: grid;
        grid-template-columns: 3rem 1fr;
        column-gap: 1rem;
        padding: 1.4rem 0 1.5rem;
    }

    .field-num {
        margin-bottom: 0;
        padding-top: 0.55rem;
    }

    .field h3 {
        font-size: 1.4rem;
    }

    .field p,
    .work-desc {
        max-width: none;
    }

    .work {
        grid-template-columns: 2.4rem 1fr;
        gap: 0.5rem 1rem;
        padding: 1.4rem 0.8rem;
    }

    .works {
        margin: 0 -0.8rem;
    }

    .work-stack {
        grid-column: 2;
        margin-top: 0.7rem;
    }

    .work-actions {
        margin-top: 0.8rem;
    }

    .works-cta {
        justify-content: stretch;
    }

    .skill-toggle {
        grid-template-columns: minmax(0, 1fr) 1.2rem;
        gap: 0.3rem 1rem;
        padding: 1rem 0.2rem;
    }

    .skill-cat {
        grid-column: 1;
        grid-row: 2;
    }

    .skill-sign {
        grid-row: 1 / span 2;
    }

    .skill-toggle:hover {
        padding-left: 0.6rem;
    }

    .skill-panel-text {
        padding: 0 0.2rem 1.3rem;
    }

    .field-row {
        grid-template-columns: 1fr;
    }

    .btn {
        justify-content: center;
        width: 100%;
    }

    .form-footer .btn {
        width: 100%;
    }

    .footer-bar {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}