:root {
  --bg: #0b0d0e;
  --bg-soft: #111416;
  --surface: #15191b;
  --surface-2: #1a1f21;
  --text: #f3f0e9;
  --muted: #a7adae;
  --line: rgba(255,255,255,.1);
  --gold: #d9a85f;
  --electric: #e8a43a;
  --invest: #42c990;
  --ai: #55bfe9;
  --accent: var(--gold);
  --max: 1180px;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(0,0,0,.28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body[data-page="eletrica"] { --accent: var(--electric); }
body[data-page="investimentos"] { --accent: var(--invest); }
body[data-page="ia"] { --accent: var(--ai); }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; display: block; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.035em; }
h1 { font-size: clamp(2.55rem, 6vw, 5.6rem); max-width: 1020px; margin-bottom: 1.5rem; }
h2 { font-size: clamp(2rem, 4vw, 3.6rem); margin-bottom: 1rem; }
h3 { font-size: 1.35rem; }
p { color: var(--muted); }
::selection { background: var(--accent); color: #090b0c; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 4px; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 1000; background: var(--accent); color: #090b0c; padding: .75rem 1rem; font-weight: 800; }
.skip-link:focus { top: 1rem; }
.container { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }
.section { padding: clamp(5rem, 10vw, 9rem) 0; position: relative; }
.section-compact { padding: 3.5rem 0; }
.section-kicker { color: var(--accent); font-size: .74rem; text-transform: uppercase; letter-spacing: .18em; font-weight: 800; margin-bottom: 1.2rem; }
.section-intro { max-width: 680px; font-size: 1.08rem; }
.muted { color: var(--muted); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease; border-bottom: 1px solid transparent; }
.site-header.is-scrolled { background: rgba(11,13,14,.86); border-color: var(--line); backdrop-filter: blur(18px); }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.site-header .header-inner { width: 100%; max-width: none; padding-inline: clamp(.85rem, 2vw, 2.25rem); }
.brand { height: 40px; display: flex; align-items: center; overflow: hidden; white-space: nowrap; }
.brand-logo { width: auto; height: 35px; max-width: min(245px, 42vw); object-fit: contain; filter: invert(1); opacity: .96; }
.brand-mark { color: var(--accent); margin-right: .45rem; }
.site-nav { display: flex; align-items: center; gap: clamp(.8rem, 2vw, 1.65rem); }
.site-nav a { color: #c6cbcc; font-size: .84rem; font-weight: 650; transition: color .2s ease; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }
.nav-contact { border: 1px solid var(--line); border-radius: 999px; padding: .58rem .9rem; }
.menu-toggle { display: none; border: 0; background: none; color: var(--text); width: 44px; height: 44px; cursor: pointer; }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 22px; height: 2px; background: currentColor; margin: 5px auto; transition: transform .2s, opacity .2s; }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: translateY(-7px) rotate(-45deg); }

.hero { min-height: 92vh; display: flex; align-items: center; padding: 9.5rem 0 6rem; overflow: hidden; }
.hero::before { content: ""; position: absolute; width: 560px; height: 560px; right: -160px; top: 80px; background: radial-gradient(circle, color-mix(in srgb, var(--accent) 18%, transparent), transparent 68%); filter: blur(20px); pointer-events: none; }
.hero::after { content: ""; position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(to bottom, black, transparent 82%); pointer-events: none; }
.hero-content { position: relative; z-index: 1; }
.eyebrow { display: inline-flex; align-items: center; gap: .7rem; color: #d0d3d3; font-size: .78rem; text-transform: uppercase; letter-spacing: .17em; font-weight: 750; margin-bottom: 1.6rem; }
.eyebrow::before { content: ""; width: 36px; height: 1px; background: var(--accent); }
.hero h1 span { color: var(--accent); }
.hero-copy { max-width: 760px; font-size: clamp(1.05rem, 2vw, 1.28rem); }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2.2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 49px; padding: .8rem 1.2rem; border: 1px solid var(--line); border-radius: 999px; font-weight: 760; font-size: .91rem; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button::after { content: "↗"; margin-left: .7rem; font-size: .95rem; }
.button:hover { transform: translateY(-2px); border-color: rgba(255,255,255,.25); }
.button-primary { background: var(--accent); color: #0b0d0e; border-color: var(--accent); }
.button-secondary { background: rgba(255,255,255,.035); }
.button.is-pending { background: transparent; color: var(--muted); border-style: dashed; }

.stats-strip { border-block: 1px solid var(--line); background: var(--bg-soft); }
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); }
.stat { padding: 1.5rem clamp(1rem, 3vw, 2.4rem); border-right: 1px solid var(--line); }
.stat:first-child { padding-left: 0; }
.stat:last-child { border: 0; }
.stat strong { display: block; font-size: .84rem; color: var(--text); margin-bottom: .15rem; }
.stat span { font-size: .8rem; color: var(--muted); }

.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin-top: 3rem; }
.service-card { position: relative; min-height: 430px; padding: 2rem; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(255,255,255,.045), rgba(255,255,255,.015)); overflow: hidden; display: flex; flex-direction: column; transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease; }
.service-card:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--card-accent) 55%, transparent); box-shadow: var(--shadow); }
.service-card::after { content: ""; position: absolute; inset: auto -100px -170px auto; width: 320px; height: 320px; background: radial-gradient(circle, color-mix(in srgb, var(--card-accent) 18%, transparent), transparent 68%); }
.service-card.electric { --card-accent: var(--electric); }
.service-card.invest { --card-accent: var(--invest); }
.service-card.ai { --card-accent: var(--ai); }
.card-number { font-size: .72rem; color: var(--card-accent); font-weight: 850; letter-spacing: .12em; }
.card-icon { width: 58px; height: 58px; display: grid; place-items: center; margin: 3.8rem 0 1.8rem; border: 1px solid color-mix(in srgb, var(--card-accent) 50%, transparent); border-radius: 16px; color: var(--card-accent); font-size: 1.45rem; font-weight: 800; background: color-mix(in srgb, var(--card-accent) 8%, transparent); }
.service-card h3 { max-width: 260px; }
.service-card p { font-size: .93rem; }
.card-link { margin-top: auto; padding-top: 1.5rem; font-size: .88rem; font-weight: 750; position: relative; z-index: 1; }
.card-link span { color: var(--card-accent); margin-left: .4rem; }

.about-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(3rem, 8vw, 7rem); align-items: start; }
.about-copy { font-size: 1.1rem; }
.credentials { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.credential { padding: 1.2rem 1rem 1.2rem 0; border-bottom: 1px solid var(--line); color: #d8dada; font-size: .91rem; }
.credential::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); margin-right: .7rem; }

.page-hero { min-height: 78vh; display: flex; align-items: end; padding: 11rem 0 6rem; border-bottom: 1px solid var(--line); isolation: isolate; overflow: hidden; background: #090b0c; }
.page-hero:not(.about-hero)::before { content: ""; position: absolute; inset: 0; z-index: -2; background-image: var(--page-hero-image); background-size: cover; background-position: center; filter: saturate(.88) contrast(1.04); transform: scale(1.015); }
.page-hero:not(.about-hero)::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(7,9,10,.98) 0%, rgba(7,9,10,.88) 37%, rgba(7,9,10,.4) 68%, rgba(7,9,10,.2) 100%), linear-gradient(0deg, rgba(7,9,10,.72) 0%, transparent 60%); }
.page-hero > .container { position: relative; z-index: 1; }
body[data-page="eletrica"] { --page-hero-image: url("../images/area-eletrica.png"); }
body[data-page="investimentos"] { --page-hero-image: url("../images/area-investimentos.png"); }
body[data-page="ia"] { --page-hero-image: url("../images/area-ia.png"); }
.page-hero .hero-copy { margin-bottom: 0; }
.topic-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 3rem; }
.topic-card { position: relative; padding: clamp(1.5rem, 4vw, 2.4rem); border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 5%, var(--surface)), var(--surface)); overflow: hidden; }
.topic-card::after { content: ""; position: absolute; width: 150px; height: 150px; right: -80px; top: -80px; border-radius: 50%; background: var(--accent); opacity: .07; filter: blur(8px); pointer-events: none; }
.topic-card h3 { display: flex; align-items: center; gap: .8rem; }
.topic-card h3::before { content: ""; width: 9px; height: 9px; border-radius: 3px; background: var(--accent); box-shadow: 0 0 24px var(--accent); }
.service-proof { display: inline-block; margin-bottom: 1.3rem; padding: .38rem .65rem; border: 1px solid color-mix(in srgb, var(--ai) 45%, transparent); border-radius: 999px; color: var(--ai); font-size: .68rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.site-example-card { border-color: color-mix(in srgb, var(--ai) 42%, var(--line)); }
.card-direct-copy { color: #d8dddf; font-size: .92rem; }
.clean-list { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.clean-list li { color: var(--muted); border-top: 1px solid var(--line); padding: .7rem 0; font-size: .92rem; }
.clean-list li::before { content: "—"; color: var(--accent); margin-right: .65rem; }
.feature-columns { display: grid; grid-template-columns: .78fr 1.22fr; gap: clamp(3rem, 8vw, 7rem); }
.problem-list { display: grid; gap: .65rem; margin-top: 2rem; }
.problem { padding: .9rem 1rem; border-left: 2px solid var(--accent); background: rgba(255,255,255,.025); color: #d3d6d6; }
.problem strong { display: block; color: var(--text); font-size: .92rem; margin-bottom: .15rem; }
.problem span { display: block; color: var(--muted); font-size: .84rem; }
.notice { margin-top: 3rem; padding: 1.6rem; border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line)); border-radius: 16px; background: color-mix(in srgb, var(--accent) 5%, transparent); }
.notice strong { color: var(--text); }
.notice p { margin: .6rem 0 0; font-size: .9rem; }

.process { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 3rem; }
.process-step { background: var(--surface); padding: 1.6rem; min-height: 200px; }
.step-number { display: block; color: var(--accent); font-weight: 850; margin-bottom: 2.5rem; }
.process-step p { font-size: .88rem; margin: 0; }
.portfolio-group { margin-top: 3rem; }
.portfolio-group + .portfolio-group { margin-top: 4rem; }
.portfolio-group-title { display: flex; align-items: center; gap: .8rem; margin-bottom: 1.2rem; font-size: 1rem; letter-spacing: 0; }
.portfolio-group-title::before { content: ""; width: 24px; height: 1px; background: var(--accent); }
.portfolio-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.portfolio-item { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.portfolio-item a { display: block; }
.portfolio-item img, .portfolio-item video { width: 100%; aspect-ratio: 4/5; display: block; object-fit: cover; background: #090b0c; }
.portfolio-item.contain img { object-fit: contain; background: #d9d7d2; }
.portfolio-item video { aspect-ratio: 9/16; }
.portfolio-item figcaption { min-height: 68px; padding: 1rem 1.1rem; color: #d8dcdd; font-size: .85rem; }
.portfolio-item img { transition: transform .35s ease, filter .35s ease; }
.portfolio-item a:hover img { transform: scale(1.025); filter: saturate(1.06); }

.cta { text-align: center; background: linear-gradient(180deg, var(--surface), var(--bg-soft)); border-block: 1px solid var(--line); }
.cta h2 { max-width: 820px; margin-inline: auto; }
.cta p { max-width: 650px; margin-inline: auto; }
.cta-actions { justify-content: center; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 8vw, 7rem); }
.contact-details { display: grid; gap: .8rem; }
.contact-item { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.contact-label { display: block; color: var(--accent); font-size: .7rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; margin-bottom: .3rem; }
.message-form { margin-top: 2.5rem; padding: clamp(1.4rem, 4vw, 2.4rem); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-field { display: grid; gap: .45rem; }
.form-field-full { grid-column: 1 / -1; }
.form-field label { color: #dfe2e2; font-size: .82rem; font-weight: 720; }
.form-field input, .form-field textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: .82rem .9rem; background: #0d1011; color: var(--text); font: inherit; }
.form-field textarea { min-height: 170px; resize: vertical; }
.form-field input::placeholder, .form-field textarea::placeholder { color: #747b7d; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 1.2rem; }
.form-actions .button { cursor: pointer; }
.form-status { min-height: 1.5em; margin: 0; font-size: .8rem; }
.form-note { margin: 1rem 0 0; font-size: .78rem; }
.link-group { display: flex; flex-wrap: wrap; gap: .7rem 1.2rem; }
.link-group a { text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent) 50%, transparent); text-underline-offset: 4px; }
.portfolio-links { margin-top: 1.5rem; }

.error-page { min-height: 100svh; display: grid; place-items: center; padding: 4rem 0; text-align: center; }
.error-page h1 { margin-inline: auto; }
.error-page p { max-width: 560px; margin-inline: auto; }

.site-footer { border-top: 1px solid var(--line); padding: 3rem 0 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 2rem; }
.footer-title { font-weight: 780; margin-bottom: .7rem; }
.footer-copy { max-width: 330px; font-size: .85rem; }
.footer-links { display: grid; gap: .5rem; font-size: .83rem; color: var(--muted); }
.footer-links a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .65rem 1.5rem; padding-top: 2rem; margin-top: 2rem; border-top: 1px solid var(--line); color: #777f80; font-size: .76rem; }
.footer-cnpj { white-space: nowrap; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Página inicial: escolha direta da área */
.home-chooser { min-height: calc(100svh - 76px); display: flex; align-items: center; padding: 8.5rem 0 4.5rem; position: relative; }
.home-chooser::before { content: ""; position: absolute; inset: 0; opacity: .14; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to bottom, black, transparent 88%); pointer-events: none; }
.home-chooser .container { position: relative; z-index: 1; }
.home-heading { max-width: 680px; margin-bottom: 2.7rem; }
.home-heading .eyebrow { margin-bottom: 1rem; }
.home-heading h1 { font-size: clamp(2.7rem, 5.7vw, 5rem); margin-bottom: .75rem; }
.home-heading > p:last-child { margin: 0; font-size: 1rem; }
.choice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.choice-card { --choice-accent: var(--gold); --choice-image: none; min-height: 270px; padding: 1.45rem; display: grid; grid-template-rows: auto 1fr auto; position: relative; isolation: isolate; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: #101315; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.choice-card::before { content: ""; position: absolute; inset: 0; z-index: -2; background-image: var(--choice-image); background-size: cover; background-position: center; transition: transform .5s ease, filter .3s ease; }
.choice-card::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(6,8,9,.28) 0%, rgba(6,8,9,.48) 34%, rgba(6,8,9,.96) 100%); }
.choice-card.electric { --choice-accent: var(--electric); --choice-image: url("../images/area-eletrica.png"); }
.choice-card.invest { --choice-accent: var(--invest); --choice-image: url("../images/area-investimentos.png"); }
.choice-card.ai { --choice-accent: var(--ai); --choice-image: url("../images/area-ia.png"); }
.choice-card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--choice-accent) 65%, transparent); box-shadow: 0 22px 55px rgba(0,0,0,.38); }
.choice-card:hover::before { transform: scale(1.045); filter: saturate(1.08); }
.choice-number { color: var(--choice-accent); font-size: .72rem; font-weight: 850; letter-spacing: .14em; }
.choice-card > * { position: relative; z-index: 1; }
.choice-card > div { align-self: end; }
.choice-card h2 { font-size: clamp(1.35rem, 2.2vw, 1.85rem); margin-bottom: .55rem; }
.choice-card p { font-size: .9rem; line-height: 1.5; margin: 0; }
.choice-arrow { justify-self: end; color: var(--choice-accent); font-size: 1.5rem; line-height: 1; margin-top: 1.2rem; transition: transform .2s ease; }
.choice-card:hover .choice-arrow { transform: translateX(4px); }
.home-footer { padding: 0; }
.home-footer .footer-bottom { margin-top: 0; }
.home-footer a:hover { color: var(--text); }
.about-hero { min-height: 58vh; }

/* Página de investimentos */
.investment-mission { border-block: 1px solid var(--line); background: linear-gradient(180deg, #0d1110, var(--bg)); }
.investment-lead { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2.5rem, 7vw, 6rem); align-items: center; }
.investment-visual { min-height: 390px; border: 1px solid color-mix(in srgb, var(--invest) 34%, var(--line)); border-radius: var(--radius); background: linear-gradient(90deg, rgba(7,11,9,.28), rgba(7,11,9,.06)), url("../images/area-investimentos.png") 72% center / cover; box-shadow: var(--shadow); }
.learning-path { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 4.5rem; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--line); }
.learning-step { min-height: 310px; padding: 1.6rem; background: #111614; }
.learning-step > span { display: block; color: var(--invest); font-size: .74rem; font-weight: 850; letter-spacing: .14em; margin-bottom: 4rem; }
.learning-step h3 { font-size: 1.25rem; }
.learning-step p { font-size: .88rem; margin-bottom: 0; }
.guide-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2.5rem, 7vw, 6rem); align-items: center; padding: clamp(2rem, 5vw, 4rem); border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, color-mix(in srgb, var(--invest) 7%, var(--surface)), var(--surface)); }
.guide-identity { display: flex; align-items: center; gap: 1.4rem; }
.guide-identity .section-kicker { margin-bottom: .45rem; }
.guide-identity h2 { font-size: clamp(1.8rem, 3.2vw, 2.8rem); margin: 0; }
.guide-monogram { flex: 0 0 92px; width: 92px; height: 92px; display: grid; place-items: center; border: 1px solid color-mix(in srgb, var(--invest) 55%, transparent); border-radius: 50%; color: var(--invest); font-size: 1.25rem; font-weight: 850; letter-spacing: .08em; background: color-mix(in srgb, var(--invest) 7%, transparent); box-shadow: inset 0 0 28px rgba(66,201,144,.08); }
.guide-copy p:last-child { margin-bottom: 0; }
.market-section { border-block: 1px solid var(--line); background: radial-gradient(circle at 80% 30%, rgba(66,201,144,.07), transparent 34%), var(--bg-soft); }
.market-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 3rem; }
.market-points article { padding: 1.6rem; border-top: 1px solid color-mix(in srgb, var(--invest) 50%, var(--line)); background: rgba(255,255,255,.02); }
.market-points article > span { color: var(--invest); font-size: .72rem; font-weight: 850; letter-spacing: .14em; }
.market-points h3 { margin: 2.5rem 0 .7rem; }
.market-points p { margin: 0; font-size: .9rem; }
.audience-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; margin-top: 2.5rem; }
.audience-grid > div { padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: 12px; color: #d7dbd9; background: rgba(255,255,255,.022); }
.audience-grid > div::before { content: "✓"; color: var(--invest); font-weight: 850; margin-right: .75rem; }

@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .site-nav { position: fixed; inset: 76px 0 auto; display: grid; padding: 1.5rem 1.25rem 2rem; background: rgba(11,13,14,.97); border-bottom: 1px solid var(--line); transform: translateY(-130%); opacity: 0; visibility: hidden; transition: transform .25s ease, opacity .25s ease, visibility .25s; }
  .site-nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .site-nav a { font-size: 1rem; padding: .45rem 0; }
  body.menu-open { overflow: hidden; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 330px; }
  .card-icon { margin-top: 2.5rem; }
  .about-grid, .feature-columns, .contact-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .process-step { min-height: auto; }
  .step-number { margin-bottom: .8rem; }
  .choice-grid { grid-template-columns: 1fr; }
  .choice-card { min-height: 180px; }
  .portfolio-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .investment-lead, .guide-panel { grid-template-columns: 1fr; }
  .learning-path { grid-template-columns: repeat(2, 1fr); }
  .investment-visual { min-height: 320px; }
}

@media (max-width: 660px) {
  .container { width: min(calc(100% - 1.5rem), var(--max)); }
  .hero { min-height: 100svh; padding-top: 8rem; }
  h1 { font-size: clamp(2.4rem, 12vw, 3.7rem); }
  .stats-row, .topic-grid, .credentials, .portfolio-grid, .footer-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-field-full { grid-column: auto; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); padding-left: 0; }
  .stat:last-child { border-bottom: 0; }
  .topic-card { padding: 1.4rem; }
  .footer-bottom { flex-direction: column; }
  .hero-actions .button, .cta-actions .button { width: 100%; }
  .home-chooser { min-height: auto; padding: 7.5rem 0 3.5rem; }
  .home-heading { margin-bottom: 2rem; }
  .home-heading h1 { font-size: clamp(2.5rem, 13vw, 3.4rem); }
  .choice-card { min-height: 155px; padding: 1.2rem; grid-template-columns: 1fr auto; grid-template-rows: auto 1fr; }
  .choice-card > div { align-self: end; }
  .choice-number { grid-column: 1; }
  .choice-arrow { grid-column: 2; grid-row: 1 / span 2; align-self: center; margin: 0; }
  .learning-path, .market-points, .audience-grid { grid-template-columns: 1fr; }
  .learning-step { min-height: auto; }
  .learning-step > span { margin-bottom: 1.5rem; }
  .guide-identity { align-items: flex-start; flex-direction: column; }
  .guide-monogram { width: 72px; height: 72px; flex-basis: 72px; }
  .investment-visual { min-height: 240px; }
  .brand-logo { height: 29px; max-width: 190px; }
}

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