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

:root {
    /* Escala tipografica: razao 1.25 a partir de 12.8px. Substitui os 19
       tamanhos avulsos que existiam antes. */
    --font-sans: 'Archivo', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;

    --fs-xs: 0.8rem;      /* 12.8 — apenas mono em caixa alta com tracking */
    --fs-sm: 1rem;        /* 16   — todo texto corrido e de card */
    --fs-md: 1.25rem;     /* 20   — h3 de card, lead */
    --fs-lg: 1.5625rem;   /* 25   — logo, botao de fechar */
    --fs-xl: 1.9531rem;   /* 31.25 — titulo do modal */
    --fs-2xl: 2.4414rem;  /* 39   — titulo de secao */
    --fs-3xl: 3.0518rem;  /* 48.8 — teto do h1 */

    --primary: #1a1a1a;
    --secondary: #2d2d2d;
    --tertiary: #3d3d3d;
    --accent: #d4af37;
    --accent-light: #e8c547;
    --text-primary: #e8e8e8;
    --text-secondary: #b4b4b4;
    --bg: #0f0f0f;
}

html {
    background-color: #0f0f0f;
    scrollbar-gutter: stable;
}

section[id] {
    scroll-margin-top: 6rem;
}

body {
    font-family: var(--font-sans);
    background: linear-gradient(135deg, var(--bg) 0%, var(--primary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 24px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideInDown {
    from {
        transform: translate3d(0, -100%, 0);
    }
    to {
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translate3d(-32px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translate3d(32px, 0, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

/* --eye-sx/--eye-sy sao registradas para poderem ser interpoladas:
   assim a piscada e o estado "large" convivem no mesmo transform. */
@property --eye-sx {
    syntax: '<number>';
    inherits: false;
    initial-value: 1;
}

@property --eye-sy {
    syntax: '<number>';
    inherits: false;
    initial-value: 1;
}

@keyframes blink {
    0%, 94%, 98%, 100% {
        transform: scale(var(--eye-sx), var(--eye-sy));
    }
    96% {
        transform: scale(var(--eye-sx), calc(var(--eye-sy) * 0.1));
    }
}

nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 15, 15, 0.97);
    z-index: 1000;
    padding: 1.25rem 2rem;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideInDown 0.45s ease-out;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: gap 0.25s ease, text-shadow 0.25s ease;
    font-size: var(--fs-lg);
    font-weight: 700;
    line-height: 1;
    color: var(--accent);
    letter-spacing: -0.01em;
    animation: fadeInUp 0.5s ease-out;
}

.logo:hover {
    text-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
    cursor: pointer;
}

.logo.no-emoji {
    gap: 0;
}

#custom-emoji {
    width: 32px;
    height: 32px;
    background-color: #fce83a;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3px;
    box-shadow: inset -2px -2px 6px rgba(200, 150, 0, 0.35), 0 2px 4px rgba(0,0,0,0.2);
    transition: opacity 0.25s ease, transform 0.25s ease;
    overflow: hidden;
    flex-shrink: 0;
}

#custom-emoji.hidden-emoji {
    width: 0;
    height: 0;
    margin: 0;
    opacity: 0;
    transform: scale(0);
    overflow: hidden;
}

.eye {
    width: 12px;
    height: 16px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.18);
    animation: none;
    transform: scale(var(--eye-sx), var(--eye-sy));
    transition: --eye-sx 0.2s ease, --eye-sy 0.2s ease;
}

#custom-emoji.hero-active .eye {
    animation: blink 4s infinite;
}

.eye.large {
    --eye-sx: 1.5;
    --eye-sy: 1.125;
}

.pupil {
    width: 5px;
    height: 5px;
    background-color: #1a1a1a;
    border-radius: 50%;
    transition: transform 0.05s linear;
}

.nav-links {
    display: flex;
    gap: 2.2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--fs-sm);
    transition: color 0.2s ease;
    position: relative;
    padding-bottom: 0.3rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.2s ease;
}

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

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

.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    padding: 9rem 2rem 5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    min-height: 100svh;
}

.hero-content {
    animation: slideInLeft 0.7s ease-out;
}

.hero h1 {
    font-size: clamp(2.25rem, 5.5vw, var(--fs-3xl));
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.08;
    letter-spacing: -0.03em;
    text-wrap: balance;
    color: var(--text-primary);
}

.hero h1 span {
    color: var(--accent);
}

/* O kicker carrega o fato verificavel (semestre, curso, instituicao) para
   que o h1 possa afirmar o trabalho em vez de um cargo. */
.hero-kicker {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.hero-lead {
    font-size: var(--fs-md);
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
    max-width: 46ch;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-family: inherit;
    font-size: var(--fs-sm);
    font-weight: 600;
    line-height: 1.4;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--accent);
    color: var(--primary);
    box-shadow: 0 6px 18px rgba(212, 175, 55, 0.22);
}

.btn-primary:hover {
    background: var(--accent-light);
    box-shadow: 0 8px 22px rgba(212, 175, 55, 0.28);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-2px);
}

.hero-image {
    position: relative;
    animation: slideInRight 0.7s ease-out;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 560px;
    transform: translate3d(0, 0, 0);
}

.image-container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 400px;
    border-radius: 20px;
}

.image-frame {
    width: 100%;
    height: 100%;
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid var(--accent);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    position: relative;
}

.image-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.skills {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, rgba(45, 45, 45, 0.25) 0%, rgba(61, 61, 61, 0.15) 100%);
    border-top: 1px solid rgba(212, 175, 55, 0.08);
    border-bottom: 1px solid rgba(212, 175, 55, 0.08);
}

.skills-container,
.portfolio-container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: var(--fs-2xl);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 3rem;
    text-align: center;
}

.section-title span {
    color: var(--accent);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--tertiary) 100%);
    padding: 2.2rem;
    border-radius: 15px;
    border: 1px solid rgba(212, 175, 55, 0.15);
    transition: opacity 0.35s ease, transform 0.35s ease, border-color 0.2s ease;
    opacity: 0;
    transform: translate3d(0, 18px, 0);
}

.skill-card.visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.skill-card:hover {
    transform: translate3d(0, -4px, 0);
    border-color: var(--accent);
}

.skill-icon {
    width: 60px;
    height: 60px;
    background: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-lg);
    margin-bottom: 1.5rem;
}

.skill-card h3 {
    font-size: var(--fs-md);
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--accent);
}

.skill-card p {
    color: var(--text-secondary);
    font-size: var(--fs-sm);
}

.portfolio {
    padding: 5rem 2rem;
}

/* Grade de 6 colunas: 2 destaques (3 colunas cada) na primeira linha
   e 3 projetos (2 colunas cada) na segunda. Fecha as linhas sem sobras. */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.75rem;
}

.portfolio-item {
    grid-column: span 2;
    position: relative;
    height: 330px;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0;
    transform: translate3d(0, 18px, 0);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.portfolio-item--featured {
    grid-column: span 3;
    height: 420px;
}

.portfolio-item.visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

/* A legenda fica sempre visivel: em toque o :hover nunca dispara, e a
   secao inteira ficava sem uma palavra. O hover so acrescenta as tags. */
.portfolio-caption {
    position: absolute;
    inset: auto 0 0 0;
    z-index: 10;
    padding: 1.9rem 1.25rem 1.1rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    background: linear-gradient(to top,
        rgba(8, 8, 8, 0.97) 0%,
        rgba(8, 8, 8, 0.93) 48%,
        rgba(8, 8, 8, 0.62) 76%,
        rgba(8, 8, 8, 0) 100%);
}

.portfolio-caption h3 {
    font-size: var(--fs-md);
    line-height: 1.2;
    color: var(--accent);
}

.portfolio-caption p {
    font-size: var(--fs-sm);
    line-height: 1.4;
    color: var(--text-primary);
}

.portfolio-status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0.6rem;
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.portfolio-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.portfolio-status--live {
    background: var(--accent);
    color: #101010;
}

.portfolio-status--code {
    border: 1px solid rgba(212, 175, 55, 0.55);
    color: var(--accent);
}

.portfolio-status--wip {
    border: 1px dashed rgba(212, 175, 55, 0.55);
    color: var(--accent);
}

/* Projeto em desenvolvimento: sem captura, porque nao ha o que mostrar
   ainda. Um monograma na propria paleta e mais honesto que a marca da
   empresa cliente ocupando o card. */
.portfolio-item--wip {
    background: linear-gradient(150deg, var(--secondary) 0%, var(--primary) 70%);
    border: 1px solid rgba(212, 175, 55, 0.18);
}

.portfolio-item__monogram {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.05em;
    color: rgba(212, 175, 55, 0.09);
    user-select: none;
    transform: translateY(-8%);
}

/* grid-template-rows anima altura sem disparar layout thrash */
.portfolio-tags {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.28s ease;
}

.portfolio-tags ul {
    overflow: hidden;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.portfolio-tags li {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    letter-spacing: 0.02em;
    color: var(--text-secondary);
    border: 1px solid rgba(212, 175, 55, 0.22);
    border-radius: 4px;
    padding: 0.15rem 0.45rem;
}

.portfolio-item:hover .portfolio-tags,
.portfolio-item:focus-visible .portfolio-tags {
    grid-template-rows: 1fr;
}

.portfolio-item:hover .portfolio-tags ul,
.portfolio-item:focus-visible .portfolio-tags ul {
    opacity: 1;
    margin-top: 0.5rem;
}

@media (hover: hover) {
    .portfolio-item:hover img {
        transform: scale(1.04);
    }
}

.about {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, rgba(45, 45, 45, 0.25) 0%, rgba(61, 61, 61, 0.15) 100%);
    border-top: 1px solid rgba(212, 175, 55, 0.08);
}

.about-container {
    max-width: 1000px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text {
    opacity: 0;
    transform: translate3d(0, 18px, 0);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.about-text.visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.about-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.about-img {
    width: 100%;
    height: 240px;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid rgba(212, 175, 55, 0.8);
    opacity: 0;
    transform: translate3d(0, 14px, 0);
    transition: opacity 0.3s ease, transform 0.3s ease;
    background-color: var(--secondary);
}

.about-img.visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.about-img:hover {
    transform: translate3d(0, -2px, 0);
}

.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact {
    padding: 5rem 2rem;
    text-align: center;
}

.contact-container {
    max-width: 800px;
    margin: 0 auto;
}

.contact .section-title {
    margin-bottom: 1rem;
}

.contact > p {
    color: var(--text-secondary);
    font-size: var(--fs-md);
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    padding: 0.8rem 1.4rem;
    border: 2px solid var(--accent);
    border-radius: 50px;
    opacity: 0;
    transform: translate3d(0, 14px, 0);
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease, color 0.2s ease;
}

.contact-link.visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.contact-link:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translate3d(0, -2px, 0);
}

footer {
    background: var(--primary);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid rgba(212, 175, 55, 0.08);
    color: var(--text-secondary);
}

.btn-cv {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-cv:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-2px);
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1rem;
    list-style: none;
}

.tech-badges li {
    background: rgba(212, 175, 55, 0.1);
    color: var(--accent);
    border: 1px solid rgba(212, 175, 55, 0.24);
    padding: 0.35rem 0.9rem;
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 400;
}

/* O modal fica sempre no layout e alterna por opacity/visibility.
   Alternar display disparava layout + paint da subarvore inteira a cada
   abertura, e o backdrop-filter obrigava o compositor a capturar e borrar
   a pagina inteira (com todas as imagens) em cada frame da animacao —
   era isso que travava ao abrir e ao fechar. */
.modal {
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.88);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.18s ease-out, visibility 0s linear 0.18s;
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.18s ease-out, visibility 0s;
}

.modal-content {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    margin: 8% auto;
    padding: 2.2rem;
    border: 1px solid var(--accent);
    width: 90%;
    max-width: 800px;
    border-radius: 15px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.35);
    opacity: 0;
    transform: translate3d(0, 14px, 0);
    transition: opacity 0.22s ease-out, transform 0.22s ease-out;
}

.modal.is-open .modal-content {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.close-button {
    color: var(--text-secondary);
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: var(--fs-lg);
    font-weight: 400;
    line-height: 1;
    background: none;
    border: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-family: inherit;
    transition: color 0.2s ease;
}

.close-button:hover,
.close-button:focus {
    color: var(--accent);
    cursor: pointer;
}

.modal-content img {
    width: 100%;
    height: 340px;
    object-fit: contain;
    background-color: var(--bg);
    border-radius: 10px;
    margin-bottom: 2rem;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.modal-content h3 {
    font-size: var(--fs-xl);
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--accent);
    margin-bottom: 1rem;
}

.modal-content > p {
    color: var(--text-primary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.modal-tech {
    margin-bottom: 2rem;
}

.modal-tech p {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
}

.modal-note {
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    padding: 0.9rem 1.1rem;
    border: 1px dashed rgba(212, 175, 55, 0.3);
    border-radius: 10px;
}

.modal-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.modal-links .btn {
    flex-grow: 1;
    text-align: center;
}

body.modal-open {
    overflow: hidden;
}

.contact-link#email-link {
    position: relative;
    justify-content: center;
    min-width: 180px;
    min-height: 47px;
}

.email-text {
    display: block;
    transition: opacity 0.2s ease-in-out;
    white-space: nowrap;
}

.email-text.copied {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    pointer-events: none;
}

.contact-link.email-is-copied .email-text.original {
    opacity: 0;
}

.contact-link.email-is-copied .email-text.copied {
    opacity: 1;
}

@media (max-width: 1100px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-item {
        grid-column: span 1;
        height: 300px;
    }

    .portfolio-item--featured {
        grid-column: 1 / -1;
        height: 360px;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 0.9rem 1rem;
        flex-wrap: wrap;
        gap: 0.7rem;
    }

    .hero {
        grid-template-columns: 1fr;
        padding: 7.5rem 1rem 4rem 1rem;
        gap: 2.5rem;
    }

    .nav-links {
        width: 100%;
        justify-content: space-between;
        gap: 0.15rem;
    }

    .nav-links a {
        display: flex;
        align-items: center;
        font-size: var(--fs-xs);
        min-height: 44px;
        padding: 0 0.2rem 0.3rem;
    }

    /* a entrada do hero desloca 32px no eixo X e criava 16px de overflow
       horizontal por ~0,7s, escondido pelo overflow-x do body */
    .hero-content,
    .hero-image {
        animation: none;
    }

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

    .hero-image {
        height: 380px;
    }

    .portfolio-grid,
    .skills-grid {
        gap: 1.25rem;
    }

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

    .portfolio-item,
    .portfolio-item--featured {
        grid-column: span 1;
        height: 260px;
    }

    .contact-links {
        gap: 0.8rem;
    }

    /* a nav mobile quebra em duas linhas e passa de 6rem */
    section[id] {
        scroll-margin-top: 8.5rem;
    }
}
/* =============================================
   SEÇÃO DE CERTIFICADOS
   ============================================= */

.certificates {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, rgba(45, 45, 45, 0.25) 0%, rgba(61, 61, 61, 0.15) 100%);
    border-top: 1px solid rgba(212, 175, 55, 0.08);
    border-bottom: 1px solid rgba(212, 175, 55, 0.08);
}

.certificates-container {
    max-width: 1400px;
    margin: 0 auto;
}

.certificates-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    max-width: 560px;
    margin: -1.5rem auto 3rem auto;
    line-height: 1.7;
}

/* Grid de certificados */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

/* Card individual */
.cert-card {
    background: linear-gradient(135deg, var(--secondary) 0%, rgba(45, 45, 45, 0.85) 100%);
    border: 1px solid rgba(212, 175, 55, 0.12);
    border-top: 2px solid var(--accent);
    border-radius: 14px;
    padding: 1.5rem 1.6rem 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    opacity: 0;
    transform: translate3d(0, 20px, 0);
    transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    overflow: hidden;
}

.cert-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top left, rgba(212, 175, 55, 0.04) 0%, transparent 60%);
    pointer-events: none;
}

.cert-card.visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.cert-card:hover {
    border-color: rgba(212, 175, 55, 0.5);
    box-shadow: 0 8px 28px rgba(212, 175, 55, 0.08);
    transform: translate3d(0, -4px, 0);
}

/* Header do card: logo + ano */
.cert-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

/* Logo genérica */
.cert-logo {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Badge do ano */
.cert-year {
    background: rgba(212, 175, 55, 0.12);
    color: var(--accent);
    border: 1px solid rgba(212, 175, 55, 0.28);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 400;
    padding: 0.25rem 0.6rem;
    border-radius: 50px;
    letter-spacing: 0.04em;
    align-self: flex-start;
}

/* Título do certificado */
.cert-title {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
    flex: 1;
}

/* Emissor */
.cert-issuer {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    margin-top: auto;
}

/* Link de verificação */
.cert-verify {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.cert-verify:hover {
    color: var(--accent-light);
}

.cert-verify--none {
    color: var(--text-secondary);
    cursor: default;
}

/* Responsivo */
@media (max-width: 768px) {
    .cert-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 1rem;
    }

    .certificates-subtitle {
        margin-bottom: 2rem;
    }
}

/* Logo com imagem real */
.cert-logo--img {
    background: none;
    padding: 0;
    border-radius: 12px;
    overflow: hidden;
}

.cert-logo--img img {
    width: 52px;
    height: 52px;
    object-fit: cover;
    border-radius: 12px;
    display: block;
}

/* =============================================
   ACESSIBILIDADE / PERFORMANCE
   ============================================= */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .skill-card,
    .portfolio-item,
    .cert-card,
    .about-text,
    .about-img,
    .contact-link {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* =============================================
   SUPERFICIES DO NAVEGADOR
   ============================================= */

#modal-title:focus {
    outline: none;
}

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

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}