/* ==========================================================
   MARCELO LIMA — PORTFÓLIO
   CSS organizado por tokens, layout, componentes e responsivo.
   Sem frameworks externos.
   ========================================================== */

:root {
    --bg: #050a12;
    --bg-soft: #08111e;
    --surface: rgba(12, 24, 40, 0.72);
    --surface-solid: #0b1626;
    --surface-light: #0f1d30;
    --text: #edf6ff;
    --muted: #92a4b8;
    --line: rgba(151, 177, 205, 0.16);
    --primary: #38f2b3;
    --secondary: #55a8ff;
    --danger: #ff6b7a;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 30px;
    --container: 1180px;
    --header-height: 76px;
    --transition: 220ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 20px); }
body {
    margin: 0;
    min-width: 320px;
    color: var(--text);
    background: var(--bg);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
::selection { background: var(--primary); color: #02110c; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
img { display: block; max-width: 100%; }

.skip-link {
    position: fixed; top: 12px; left: 12px; z-index: 9999;
    padding: 10px 14px; border-radius: 8px; color: #00110c; background: var(--primary);
    transform: translateY(-150%); transition: transform var(--transition);
}
.skip-link:focus { transform: translateY(0); }

.background-grid {
    position: fixed; inset: 0; z-index: -3; pointer-events: none;
    background-image: linear-gradient(rgba(82,167,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(82,167,255,.035) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(to bottom, black 0%, transparent 85%);
}
.background-grid::before,
.background-grid::after {
    content: ""; position: absolute; border-radius: 50%; filter: blur(100px); opacity: .13;
}
.background-grid::before { width: 420px; height: 420px; background: var(--secondary); right: -100px; top: 120px; }
.background-grid::after { width: 340px; height: 340px; background: var(--primary); left: -100px; top: 480px; }
.cursor-glow {
    position: fixed; width: 320px; height: 320px; z-index: -2; pointer-events: none;
    border-radius: 50%; background: radial-gradient(circle, rgba(56,242,179,.08), transparent 66%);
    transform: translate(-50%, -50%); transition: opacity .2s ease;
}

.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.section { position: relative; padding: 112px 0; }
.section-muted { background: rgba(255,255,255,.018); border-block: 1px solid var(--line); }
.section-dark { background: #03070d; border-block: 1px solid var(--line); }
.eyebrow { margin: 0 0 16px; color: var(--primary); font-size: .76rem; font-weight: 800; letter-spacing: .18em; }
.accent { color: var(--primary); }
.gradient-text { color: transparent; background: linear-gradient(90deg, var(--primary), var(--secondary)); background-clip: text; -webkit-background-clip: text; }

.site-header {
    position: sticky; top: 0; z-index: 1000; height: var(--header-height);
    border-bottom: 1px solid transparent; background: rgba(5,10,18,.68); backdrop-filter: blur(18px);
    transition: border-color var(--transition), background var(--transition);
}
.site-header.scrolled { border-color: var(--line); background: rgba(5,10,18,.9); }
.nav-wrap { height: 100%; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.03em; }
.brand-mark {
    width: 39px; aspect-ratio: 1; display: grid; place-items: center; border: 1px solid rgba(56,242,179,.35);
    border-radius: 11px; color: var(--primary); background: rgba(56,242,179,.07); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85rem;
}
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 28px; }
.main-nav a { position: relative; color: var(--muted); font-size: .89rem; font-weight: 650; transition: color var(--transition); }
.main-nav a::after { content: ""; position: absolute; left: 0; bottom: -8px; width: 100%; height: 2px; background: var(--primary); transform: scaleX(0); transform-origin: right; transition: transform var(--transition); }
.main-nav a:hover, .main-nav a.active { color: var(--text); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { padding: 9px 14px; border: 1px solid var(--line); border-radius: 10px; color: var(--text); font-size: .84rem; font-weight: 700; transition: .2s ease; }
.nav-cta:hover { border-color: rgba(56,242,179,.45); color: var(--primary); background: rgba(56,242,179,.05); }
.menu-toggle { display: none; margin-left: auto; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; background: transparent; cursor: pointer; }
.menu-toggle span { width: 19px; height: 2px; margin: 4px auto; display: block; border-radius: 3px; background: var(--text); transition: .2s ease; }

.hero { min-height: calc(100vh - var(--header-height)); display: grid; align-items: center; padding-top: 76px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 70px; align-items: center; }
.status-pill { width: fit-content; margin-bottom: 24px; padding: 8px 12px; display: flex; align-items: center; gap: 9px; border: 1px solid rgba(56,242,179,.2); border-radius: 999px; color: #b9c9d9; background: rgba(56,242,179,.045); font-size: .8rem; }
.status-dot { width: 7px; aspect-ratio: 1; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 5px rgba(56,242,179,.08); animation: pulse 1.8s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 9px rgba(56,242,179,0); } }
.hero h1 { margin: 0; max-width: 800px; font-size: clamp(2.8rem, 5.2vw, 5.8rem); line-height: .99; letter-spacing: -.055em; }
.hero-description { max-width: 700px; margin: 28px 0 0; color: var(--muted); font-size: 1.05rem; }
.hero-description strong { color: var(--text); }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 48px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 1px solid transparent; border-radius: 12px; font-weight: 800; font-size: .89rem; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #02130d; background: var(--primary); box-shadow: 0 12px 40px rgba(56,242,179,.13); }
.button-primary:hover { background: #62f8c3; }
.button-secondary { border-color: var(--line); background: rgba(255,255,255,.025); }
.button-secondary:hover { border-color: rgba(85,168,255,.4); background: rgba(85,168,255,.055); }
.hero-stats { margin-top: 42px; padding-top: 26px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.hero-stats div { padding-right: 20px; }
.hero-stats strong { display: block; color: var(--text); font-size: 1rem; }
.hero-stats span { color: var(--muted); font-size: .75rem; }

.hero-terminal { position: relative; border: 1px solid rgba(85,168,255,.2); border-radius: var(--radius-md); background: linear-gradient(180deg, rgba(12,25,42,.9), rgba(5,13,23,.9)); box-shadow: var(--shadow); overflow: hidden; transform: perspective(1000px) rotateY(-2.5deg) rotateX(1deg); }
.hero-terminal::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(120deg, transparent 30%, rgba(56,242,179,.035), transparent 70%); }
.terminal-bar { min-height: 48px; padding: 0 16px; display: flex; align-items: center; gap: 16px; border-bottom: 1px solid var(--line); color: #7f95aa; font: .74rem ui-monospace, SFMono-Regular, Menlo, monospace; }
.terminal-dots { display: flex; gap: 6px; }
.terminal-dots i { width: 9px; aspect-ratio: 1; border-radius: 50%; background: #ff6b76; }
.terminal-dots i:nth-child(2) { background: #ffc85a; }
.terminal-dots i:nth-child(3) { background: #45d987; }
.terminal-body { min-height: 490px; padding: 26px; font: .83rem/1.7 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; color: #b9c7d6; }
.terminal-body p { margin: 0 0 7px; }
.term-user { color: var(--primary); font-weight: 800; }
.term-output { margin-bottom: 20px !important; color: #dbe8f3; }
.typing-line { min-height: 25px; color: var(--secondary); }
.terminal-cursor { color: var(--primary); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.code-panel { margin-top: 32px; padding: 22px; border: 1px solid var(--line); border-radius: 14px; background: rgba(0,0,0,.22); overflow-x: auto; }
.code-panel pre { margin: 0; }
.code-muted { color: #4d6479; user-select: none; }
.code-value { color: var(--primary); }

.section-heading { max-width: 760px; margin-bottom: 54px; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 4vw, 4rem); line-height: 1.08; letter-spacing: -.045em; }
.section-heading-row { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 40px; }
.section-note { max-width: 380px; margin: 0; color: var(--muted); font-size: .86rem; }
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; }
.about-grid .section-heading { margin: 0; }
.about-content { color: var(--muted); font-size: 1rem; }
.about-content p:first-child { margin-top: 0; }
.about-content strong { color: var(--text); }
.about-content blockquote { margin: 34px 0 0; padding: 20px 0 20px 24px; border-left: 2px solid var(--primary); color: var(--text); font-size: 1.1rem; font-weight: 700; }

.skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.skill-card { position: relative; min-height: 190px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); overflow: hidden; transition: transform var(--transition), border-color var(--transition), background var(--transition); }
.skill-card:hover { transform: translateY(-5px); border-color: rgba(56,242,179,.27); background: rgba(13,28,46,.92); }
.skill-card::after { content: ""; position: absolute; width: 120px; height: 120px; right: -50px; bottom: -60px; border-radius: 50%; background: radial-gradient(circle, rgba(85,168,255,.12), transparent 67%); }
.skill-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.skill-icon { width: 42px; aspect-ratio: 1; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 12px; color: var(--primary); background: rgba(56,242,179,.055); font: 800 .76rem ui-monospace, monospace; }
.skill-level { color: #71869a; font: .69rem ui-monospace, monospace; text-transform: uppercase; letter-spacing: .08em; }
.skill-card h3 { margin: 28px 0 6px; font-size: 1rem; }
.skill-card p { margin: 0; color: var(--muted); font-size: .79rem; }
.skill-meter { height: 3px; margin-top: 22px; border-radius: 4px; background: rgba(255,255,255,.055); overflow: hidden; }
.skill-meter span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--primary), var(--secondary)); transition: width 900ms cubic-bezier(.2,.8,.2,1); }

.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.project-card { position: relative; min-height: 360px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-lg); background: radial-gradient(circle at 90% 10%, rgba(85,168,255,.09), transparent 35%), var(--surface-solid); overflow: hidden; transition: transform var(--transition), border-color var(--transition); }
.project-card:hover { transform: translateY(-5px); border-color: rgba(85,168,255,.28); }
.project-card.featured { grid-column: span 2; min-height: 410px; background: radial-gradient(circle at 85% 15%, rgba(56,242,179,.1), transparent 34%), var(--surface-solid); }
.project-number { color: #50677b; font: .72rem ui-monospace, monospace; }
.project-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 18px 0; }
.project-tag { padding: 5px 8px; border: 1px solid var(--line); border-radius: 999px; color: #9eb0c0; font-size: .67rem; font-weight: 700; }
.project-card h3 { margin: auto 0 8px; font-size: clamp(1.5rem, 2.5vw, 2.35rem); letter-spacing: -.035em; }
.project-card p { max-width: 720px; margin: 0 0 22px; color: var(--muted); font-size: .9rem; }
.project-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.project-link { color: var(--primary); font-weight: 800; font-size: .84rem; }
.project-status { color: #668095; font: .7rem ui-monospace, monospace; }
.text-link { color: var(--primary); font-size: .86rem; font-weight: 800; }

.roadmap-layout { display: grid; grid-template-columns: .88fr 1.12fr; gap: 80px; align-items: start; }
.roadmap-intro { position: sticky; top: 120px; }
.roadmap-intro h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.08; letter-spacing: -.045em; }
.roadmap-intro > p:not(.eyebrow) { color: var(--muted); }
.roadmap-progress { margin-top: 34px; }
.progress-label { margin-bottom: 10px; display: flex; justify-content: space-between; color: var(--muted); font-size: .8rem; }
.progress-label strong { color: var(--primary); }
.progress-track { height: 6px; border-radius: 99px; background: rgba(255,255,255,.06); overflow: hidden; }
.progress-track span { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--primary), var(--secondary)); transition: width 1.2s ease; }
.timeline { position: relative; padding-left: 36px; }
.timeline::before { content: ""; position: absolute; top: 16px; bottom: 20px; left: 8px; width: 1px; background: var(--line); }
.timeline-item { position: relative; padding: 0 0 44px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { content: ""; position: absolute; left: -32px; top: 8px; width: 9px; aspect-ratio: 1; border: 2px solid var(--bg); border-radius: 50%; background: #53697d; box-shadow: 0 0 0 1px #53697d; }
.timeline-item.active::before { background: var(--primary); box-shadow: 0 0 0 1px var(--primary), 0 0 0 7px rgba(56,242,179,.07); }
.timeline-kicker { color: var(--primary); font: .7rem ui-monospace, monospace; letter-spacing: .08em; text-transform: uppercase; }
.timeline-item h3 { margin: 7px 0 6px; font-size: 1.18rem; }
.timeline-item p { margin: 0; color: var(--muted); font-size: .88rem; }

.principles-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.principle-card { min-height: 230px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,.018); }
.principle-card span { color: var(--primary); font: .72rem ui-monospace, monospace; }
.principle-card h3 { margin: 42px 0 8px; font-size: 1.12rem; }
.principle-card p { margin: 0; color: var(--muted); font-size: .86rem; }

.contact-section { padding-top: 80px; }
.contact-card { padding: 54px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 60px; border: 1px solid rgba(56,242,179,.18); border-radius: var(--radius-lg); background: radial-gradient(circle at 90% 20%, rgba(56,242,179,.09), transparent 30%), linear-gradient(135deg, rgba(15,31,49,.95), rgba(6,15,25,.95)); box-shadow: var(--shadow); }
.contact-card h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.05; letter-spacing: -.045em; }
.contact-card p:not(.eyebrow) { max-width: 700px; margin-bottom: 0; color: var(--muted); }
.contact-actions { min-width: 220px; display: grid; gap: 10px; }
.site-footer { padding: 34px 0; border-top: 1px solid var(--line); color: #6f8396; font-size: .78rem; }
.footer-wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-wrap p { margin: 0; }
.footer-wrap a:hover { color: var(--primary); }
.noscript { position: fixed; left: 20px; right: 20px; bottom: 20px; z-index: 2000; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: #101a26; text-align: center; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1000px) {
    .hero-grid, .about-grid, .roadmap-layout { grid-template-columns: 1fr; gap: 56px; }
    .hero { padding-top: 80px; }
    .hero-copy { max-width: 800px; }
    .hero-terminal { max-width: 760px; width: 100%; transform: none; }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .roadmap-intro { position: static; }
    .contact-card { grid-template-columns: 1fr; gap: 34px; }
    .contact-actions { grid-template-columns: repeat(3, max-content); min-width: 0; }
}

@media (max-width: 780px) {
    :root { --header-height: 68px; }
    .container { width: min(calc(100% - 28px), var(--container)); }
    .section { padding: 82px 0; }
    .menu-toggle { display: block; }
    .nav-cta { display: none; }
    .main-nav {
        position: fixed; inset: var(--header-height) 0 auto; margin: 0; padding: 24px 20px 30px; display: grid; gap: 0;
        border-bottom: 1px solid var(--line); background: rgba(5,10,18,.98); backdrop-filter: blur(16px);
        transform: translateY(-130%); opacity: 0; pointer-events: none; transition: .28s ease;
    }
    .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .main-nav a { padding: 15px 4px; border-bottom: 1px solid var(--line); font-size: .95rem; }
    .main-nav a:last-child { border-bottom: 0; }
    .menu-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .menu-toggle.active span:nth-child(2) { opacity: 0; }
    .menu-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
    .hero h1 { font-size: clamp(2.5rem, 13vw, 4.6rem); }
    .hero-stats { gap: 16px; }
    .hero-stats div { padding-right: 0; }
    .terminal-body { min-height: 0; padding: 20px; font-size: .75rem; }
    .section-heading-row { align-items: start; flex-direction: column; gap: 18px; }
    .projects-grid { grid-template-columns: 1fr; }
    .project-card.featured { grid-column: auto; }
    .principles-grid { grid-template-columns: 1fr; }
    .contact-card { padding: 34px 24px; }
    .contact-actions { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
    .brand-text { display: none; }
    .hero { min-height: auto; }
    .hero-actions { display: grid; }
    .button { width: 100%; }
    .hero-stats { grid-template-columns: 1fr; }
    .hero-stats div { padding: 0 0 12px; border-bottom: 1px solid var(--line); }
    .skills-grid { grid-template-columns: 1fr; }
    .skill-card { min-height: 170px; }
    .project-card, .project-card.featured { min-height: 330px; padding: 22px; border-radius: 20px; }
    .project-footer { align-items: flex-start; flex-direction: column; }
    .footer-wrap { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
    .reveal { opacity: 1; transform: none; }
    .cursor-glow { display: none; }
}