:root {
    /* Cores */
    --color-ink: #1b1d2a;
    --color-on-accent: #0b1a20;
    --color-bg: #000000;
    --color-text: #e2e8f0;
    --color-muted: #9aa4b8;
    --color-accent: #52acc7;
    --color-line: #2f3246;
    --font-display: "Poppins", system-ui, sans-serif;
    --font-heading: "Raleway", system-ui, sans-serif;
    --font-body: "Poppins", system-ui, sans-serif;
    box-sizing: border-box;
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px)
}

@media (prefers-color-scheme:light) {
    :root:not([data-theme="dark"]) {
        --color-bg: var(--color-ink)
    }
}

*,
*::before,
*::after {
    box-sizing: inherit
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 72px
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased
}

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

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: calc(14px + env(safe-area-inset-top, 0px)) clamp(18px, 4.5vw, 64px) 14px;
    background: rgb(255 255 255 / .04);
    border-bottom: 1px solid rgb(255 255 255/.16);
    backdrop-filter: blur(8px) saturate(180%);
    -webkit-backdrop-filter: blur(8px) saturate(180%)
}

@media(prefers-reduced-transparency:reduce) {
    .site-header {
        background: #1b1d2af5;
        backdrop-filter: none;
        -webkit-backdrop-filter: none
    }
}

.site-header nav {
    display: flex;
    gap: clamp(18px, 3vw, 40px);
    font: 600 15px var(--font-display);
    text-shadow: 0 1px 10px #0b0d1499
}

.site-header nav a {
    color: #fff;
    opacity: .92;
    transition: color .2s, opacity .2s
}

.site-header nav a:hover {
    color: var(--color-accent);
    opacity: 1
}

.site-header__logo {
    font: 800 24px var(--font-display);
    letter-spacing: -.03em;
    color: #fff
}

.site-header__logo b {
    color: var(--color-accent)
}

.social-links {
    display: flex;
    gap: 16px;
    justify-self: end
}

.social-links a {
    width: 34px;
    height: 34px;
    border-radius: 5px;
    background: #e2e8f0;
    color: var(--color-ink);
    display: grid;
    place-items: center;
    font-size: 18px;
    transition: .2s
}

.social-links a:hover {
    background: var(--color-accent);
    transform: translateY(-2px)
}

.social-links svg {
    width: 1em;
    height: 1em
}

@media(max-width:820px) {
    .site-header {
        grid-template-columns: 1fr auto
    }

    .site-header nav {
        display: none
    }
}

/* ===== Fundo: vídeo fixo + scrim ===== */
.bg-video {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    display: block;
    opacity: 0.4;
}

.bg-scrim {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: linear-gradient(90deg, #1b1d2ab0 0%, #1b1d2a55 45%, #1b1d2a55 60%, #1b1d2aa0 100%)
}

.scroll-progress {
    position: fixed;
    z-index: 30;
    left: 0;
    top: 0;
    height: 2px;
    width: 100%;
    background: var(--color-accent);
    transform-origin: 0 50%;
    transform: scaleX(0)
}

main,
section,
footer {
    position: relative;
    z-index: 1
}

h1,
h2,
h3,
h4,
p,
.timeline__meta,
.timeline__subtitle {
    text-shadow: 0 1px 14px #0b0d14cc
}

.hero {
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding: 120px clamp(20px, 4.5vw, 64px) 80px
}

.hero__inner {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px
}

.hero__eyebrow {
    font: 600 clamp(18px, 1.8vw, 24px) var(--font-display);
    color: var(--color-accent);
    margin: 0 0 6px
}

.hero h1 {
    margin: 0;
    font: 800 clamp(56px, 10.5vw, 152px)/.95 var(--font-display);
    letter-spacing: -.045em;
    color: #fff;
    text-shadow: 0 4px 30px #0b0d1480
}

.hero__aside {
    max-width: 340px;
    text-align: right;
    margin-top: clamp(0px, 4vw, 64px)
}

.hero__aside p {
    margin: 0;
    font: 500 clamp(16px, 1.5vw, 20px)/1.55 var(--font-display);
    color: #fff
}

.hero__actions {
    margin-top: 40px
}

.btn--icon {
    display: inline-flex;
    align-items: center;
    gap: 10px
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-top: 22px;
    padding: 8px 16px;
    border-radius: 99px;
    background: var(--color-accent);
    color: var(--color-on-accent);
    font: 600 15px var(--font-body);
    transition: .2s
}

.chip:hover {
    transform: translateY(-2px);
    filter: brightness(1.1)
}

.chip svg {
    font-size: 15px
}

@media(max-width:820px) {
    .hero__inner {
        flex-direction: column
    }

    .hero__aside {
        text-align: left;
        margin: 0
    }
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px
}

.btn {
    font: 500 15px var(--font-body);
    padding: 14px 30px;
    border-radius: 5px;
    border: 1px solid var(--color-accent);
    transition: .2s
}

.btn--primary {
    background: var(--color-accent);
    color: var(--color-on-accent)
}

.btn--primary:hover {
    filter: brightness(1.12);
    transform: translateY(-2px)
}

.btn--outline {
    border-color: #e2e8f0;
    color: #e2e8f0
}

.btn--outline:hover {
    background: #e2e8f0;
    color: var(--color-ink);
    transform: translateY(-2px)
}

.section {
    padding: clamp(80px, 12vw, 150px) clamp(20px, 6vw, 90px);
    max-width: 1280px;
    margin: 0 auto
}

.reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity .8s cubic-bezier(.2, .7, .2, 1), transform .8s cubic-bezier(.2, .7, .2, 1)
}

.reveal.is-visible {
    opacity: 1;
    transform: none
}

.section-title {
    font: 800 clamp(28px, 4.4vw, 52px)/.95 var(--font-display);
    margin: 0;
    letter-spacing: -.045em;
    color: #fff;
    text-shadow: 0 4px 30px #0b0d1480
}

/* ===== Certificação ===== */
.certification {
    display: grid;
    grid-template-columns: 4fr 8fr;
    gap: clamp(30px, 6vw, 90px);
    align-items: center;
    padding-block: clamp(56px, 8vw, 100px)
}

.certification__badge {
    margin: 0;
    display: grid;
    place-items: center;
    padding: clamp(28px, 4vw, 56px);
    border: 1px solid rgb(255 255 255 / .16);
    border-radius: 5px;
    background:
        radial-gradient(circle at 50% 40%, rgb(82 172 199 / .22), transparent 65%),
        rgb(255 255 255 / .04);
    backdrop-filter: blur(8px) saturate(180%);
    -webkit-backdrop-filter: blur(8px) saturate(180%)
}

.certification__badge img {
    width: 100%;
    max-width: 260px;
    height: auto;
    filter: drop-shadow(0 18px 40px rgb(82 172 199 / .28));
    transition: transform .4s cubic-bezier(.2, .7, .2, 1)
}

.certification__badge:hover img {
    transform: translateY(-6px)
}

.certification__lead {
    max-width: 52ch;
    margin: 18px 0 0;
    color: #c7cfdd;
    font-size: clamp(15px, 1.25vw, 17px)
}

.certification__skills {
    list-style: none;
    margin: 36px 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px clamp(24px, 4vw, 56px)
}

.certification__skills li {
    padding-top: 14px;
    border-top: 1px solid var(--color-line)
}

.certification__skills h3 {
    margin: 0 0 4px;
    font: 600 16px var(--font-body);
    color: var(--color-accent)
}

.certification__skills p {
    margin: 0;
    font-size: 14px;
    color: #d6dce8
}

@media(max-width:860px) {
    .certification {
        grid-template-columns: 1fr
    }

    .certification__badge {
        max-width: 360px
    }
}

@media(max-width:520px) {
    .certification__skills {
        grid-template-columns: 1fr
    }
}

@media(prefers-reduced-transparency:reduce) {
    .certification__badge {
        background: #1b1d2af5;
        backdrop-filter: none;
        -webkit-backdrop-filter: none
    }
}

/* ===== Sobre ===== */
.about__actions {
    margin-top: 32px
}

.about {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: clamp(30px, 6vw, 90px);
    align-items: start
}

.about__text p {
    margin: 0 0 22px;
    color: #c7cfdd;
    font-size: clamp(15px, 1.25vw, 17px)
}

.about__text p:first-child::first-line {
    color: var(--color-text);
    font-weight: 500
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px
}

.tag-list__item {
    font: 600 12px var(--font-body);
    background: var(--color-accent);
    color: var(--color-on-accent);
    padding: 7px 14px;
    border-radius: 99px;
    text-shadow: none
}

@media(max-width:860px) {
    .about {
        grid-template-columns: 1fr
    }
}

/* ===== Experiência e formação (timeline) ===== */
.section-heading {
    text-align: center;
    margin-bottom: clamp(40px, 6vw, 80px)
}

.timeline-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(30px, 6vw, 80px)
}

.timeline-column__title {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 0 0 34px;
    font: 500 clamp(24px, 3vw, 34px) var(--font-heading)
}

.timeline-column__icon {
    font: 600 13px var(--font-body);
    font-style: normal;
    border: 1.5px solid var(--color-text);
    border-radius: 4px;
    padding: 5px 7px;
    line-height: 1
}

.timeline {
    position: relative;
    padding-left: 34px
}

.timeline::before,
.timeline__fill {
    content: "";
    position: absolute;
    left: 8px;
    top: 8px;
    bottom: 0;
    width: 2px;
    background: var(--color-line)
}

.timeline__fill {
    background: var(--color-accent);
    height: 0;
    bottom: auto;
    transition: height .12s linear
}

.timeline__item {
    position: relative;
    margin-bottom: 34px
}

.timeline__item::before {
    content: "";
    position: absolute;
    left: -34px;
    top: 5px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-accent);
}

.timeline__item--course::before {
    background: var(--color-text)
}

.timeline__item h4 {
    margin: 0;
    font: 600 clamp(16px, 1.5vw, 19px) var(--font-body);
    color: var(--color-accent)
}

.timeline__item--course h4 {
    color: var(--color-text)
}

.timeline__item .timeline__meta {
    font: 500 12px var(--font-body);
    letter-spacing: .04em;
    text-transform: uppercase;
    margin: 4px 0 8px;
    color: #cbd3e1
}

.timeline__item p {
    margin: 0;
    font-size: 15px;
    color: #d6dce8
}

.timeline__item .timeline__subtitle {
    font-size: 16px;
    color: var(--color-text)
}

@media(max-width:860px) {
    .timeline-grid {
        grid-template-columns: 1fr
    }
}

/* ===== Contato ===== */
.contact {
    text-align: center;
    padding: clamp(70px, 10vw, 120px) 20px 60px
}

.contact p {
    max-width: 800px;
    margin: 0 auto 26px;
    font: 600 clamp(20px, 2.7vw, 32px)/1.4 var(--font-heading);
    color: #bcc6d8
}

.contact .contact__email {
    display: inline-block;
    font: 500 clamp(22px, 3.4vw, 38px) var(--font-heading);
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 4px;
    transition: color .2s
}

.contact .contact__email:hover {
    color: var(--color-accent)
}

.contact .social-links {
    justify-content: center;
    justify-self: auto;
    margin: 36px auto 0;
    width: fit-content
}

.contact footer {
    margin-top: 60px;
    font-size: 12px;
    color: var(--color-muted)
}

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

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

/* ===== Loader ===== */
.loader {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
}

.loader--hidden {
    transform: translateY(-100%);
}

.loader__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    width: 80%;
    max-width: 400px;
}

.loader__track {
    width: 100%;
    height: 30px;
    border: 2px solid #d1d1d1;
    border-radius: 8px;
    padding: 2px;
}

.loader__bar {
    height: 100%;
    width: 0%;
    background-color: #00ffbf;
    border-radius: 4px;
    transition: width 0.2s ease-out;
}

.loader__text {
    color: #00ffff;
    font-size: 34px;
    font-weight: 600;
    font-family: var(--font-display);
}