:root {
  --bg: #0c0d0f;
  --bg-2: #14161a;
  --bg-3: #1c1f24;
  --line: #2a2e35;
  --text: #ecebe6;
  --muted: #a3a6ad;
  --accent: #2fb3d6;
  --c1: #2fb3d6;
  --c2: #e2483c;
  --c3: #f2d330;
  --c4: #86c64f;
  --radius: 10px;
  --max: 1160px;
  --head: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body: "Barlow", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 18px/1.65 var(--body); -webkit-font-smoothing: antialiased; }
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--head); font-weight: 700; line-height: 1.05; letter-spacing: .01em; margin: 0 0 .5em; text-transform: uppercase; }
h1 { font-size: clamp(44px, 8vw, 92px); }
h2 { font-size: clamp(34px, 5vw, 56px); }
h3 { font-size: 26px; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.eyebrow { font: 600 14px/1 var(--head); letter-spacing: .22em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; display: block; }
.muted { color: var(--muted); }
section { padding: 96px 0; }
.alt { background: var(--bg-2); }

/* header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(12,13,15,.86); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 20px; }
.logo img { height: 26px; width: auto; }
.nav { display: flex; gap: 26px; align-items: center; }
.nav a { text-decoration: none; font: 600 16px/1 var(--head); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); transition: color .2s; }
.nav a:hover, .nav a[aria-current] { color: var(--text); }
.nav .btn { color: #0c0d0f; }
.menu-toggle { display: none; background: none; border: 0; color: var(--text); font: 600 16px var(--head); letter-spacing: .12em; text-transform: uppercase; cursor: pointer; padding: 8px 0; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 26px; border-radius: 999px; background: var(--accent); color: #0c0d0f; font: 700 17px/1 var(--head); letter-spacing: .1em; text-transform: uppercase; text-decoration: none; border: 2px solid var(--accent); transition: transform .15s, background .2s, color .2s; cursor: pointer; }
.btn:hover { transform: translateY(-2px); }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--accent); }
.btn.sm { padding: 10px 18px; font-size: 15px; }
.btns { display: flex; flex-wrap: wrap; gap: 12px; }

/* hero */
.hero { position: relative; min-height: min(88vh, 820px); display: flex; align-items: center; overflow: hidden; padding: 120px 0 96px; }
.hero video, .hero .poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .38; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, var(--bg) 0%, rgba(12,13,15,.25) 30%, rgba(12,13,15,.65) 70%, var(--bg) 100%); }
.hero .wrap { position: relative; z-index: 1; width: 100%; }
.hero h1 span { color: var(--accent); display: block; }
.hero .lead { font-size: clamp(19px, 2.2vw, 24px); color: var(--text); max-width: 620px; margin-bottom: 32px; }
.stripes { display: flex; gap: 6px; margin-bottom: 26px; }
.stripes i { width: 46px; height: 5px; border-radius: 3px; }
.stripes i:nth-child(1) { background: var(--c1); } .stripes i:nth-child(2) { background: var(--c2); } .stripes i:nth-child(3) { background: var(--c3); } .stripes i:nth-child(4) { background: var(--c4); }

/* features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; margin-top: 40px; }
.feature { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.feature b { display: block; font: 700 40px/1 var(--head); color: var(--accent); margin-bottom: 10px; }
.feature span { color: var(--muted); font-size: 16px; }

/* volume cards */
.volumes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 44px; }
.vol-card { --accent: var(--vc); background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: border-color .2s, transform .2s; }
.vol-card:hover { border-color: var(--vc); transform: translateY(-4px); }
.vol-card .cover { display: block; aspect-ratio: 990/1400; overflow: hidden; background: #000; }
.vol-card .cover img { width: 100%; height: 100%; object-fit: cover; }
.vol-card .body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.vol-card .num { font: 700 14px/1 var(--head); letter-spacing: .2em; color: var(--vc); }
.vol-card h3 { margin: 8px 0 6px; font-size: 28px; }
.vol-card .notes { font-size: 15px; color: var(--muted); margin-bottom: 16px; }
.vol-card .btns { margin-top: auto; }
.price { display: flex; align-items: baseline; gap: 10px; margin-bottom: 16px; font-family: var(--head); }
.price strong { font-size: 30px; }
.price s { color: var(--muted); font-size: 19px; }
.price small { color: var(--muted); font-size: 16px; letter-spacing: .05em; }

/* review */
.review { display: grid; grid-template-columns: 1fr 1.4fr; gap: 56px; align-items: start; }
.big-quote { font: 600 clamp(30px, 3.6vw, 44px)/1.15 var(--head); text-transform: none; }
.big-quote em { color: var(--accent); font-style: normal; }
.review-text p { color: #cfd0d3; }
.review-meta { display: flex; gap: 22px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 20px; margin-top: 10px; font-size: 16px; }
.review-meta b { color: var(--accent); font-family: var(--head); letter-spacing: .1em; text-transform: uppercase; }
details.more summary { cursor: pointer; color: var(--accent); font: 600 16px var(--head); letter-spacing: .12em; text-transform: uppercase; list-style: none; margin: 8px 0 16px; }
details.more summary::-webkit-details-marker { display: none; }
details.more[open] summary { display: none; }

/* about */
.about { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: start; }
.about img { border-radius: var(--radius); width: 100%; aspect-ratio: 4/5; object-fit: cover; object-position: 40% center; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 24px; padding: 0; list-style: none; }
.tags li { background: var(--bg-3); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: 15px; }
.about h3 { margin-top: 28px; font-size: 22px; color: var(--accent); }

/* faq */
.faq { max-width: 860px; margin-top: 36px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 40px 22px 0; position: relative; font: 600 22px/1.25 var(--head); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font-size: 30px; color: var(--accent); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: #cfd0d3; padding-bottom: 8px; }

/* contact */
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; }
form.contact-form { display: grid; gap: 14px; }
.contact-form label { font: 600 14px var(--head); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); display: grid; gap: 6px; }
.contact-form input, .contact-form textarea { width: 100%; background: var(--bg-3); border: 1px solid var(--line); border-radius: 8px; color: var(--text); font: 400 17px var(--body); padding: 13px 14px; }
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }
.socials { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.socials a { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; padding: 10px 16px; border: 1px solid var(--line); border-radius: 999px; font-size: 16px; }
.socials a:hover { border-color: var(--accent); }
.socials svg { width: 18px; height: 18px; fill: currentColor; }

/* volume page */
.vol-hero { padding: 72px 0 88px; position: relative; overflow: hidden; }
.vol-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(70% 80% at 85% 20%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%); }
.vol-hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 400px) 1fr; gap: 56px; align-items: center; }
.vol-hero .cover { border-radius: 6px; box-shadow: 0 30px 70px rgba(0,0,0,.6); max-width: 420px; width: 100%; justify-self: center; }
.vol-hero h1 { font-size: clamp(44px, 6.5vw, 78px); }
.scale-notes { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; padding: 0; list-style: none; }
.scale-notes li { min-width: 44px; text-align: center; padding: 8px 10px; border: 1px solid var(--accent); color: var(--accent); border-radius: 6px; font: 700 18px/1 var(--head); }
.checklist { list-style: none; padding: 0; margin: 0 0 28px; display: grid; gap: 10px; }
.checklist li { padding-left: 34px; position: relative; }
.checklist li::before { content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%; background: var(--accent); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 0a10 10 0 1 0 0 20 10 10 0 0 0 0-20zm-1.2 14.2L4.6 10l1.4-1.4 2.8 2.8 5.2-5.2 1.4 1.4-6.6 6.6z'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M10 0a10 10 0 1 0 0 20 10 10 0 0 0 0-20zm-1.2 14.2L4.6 10l1.4-1.4 2.8 2.8 5.2-5.2 1.4 1.4-6.6 6.6z'/%3E%3C/svg%3E") center/contain no-repeat; }
.buy-box { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }
.buy-box > div { display: grid; gap: 10px; align-content: start; }
.buy-box .price { margin: 0; }
.buy-box .note { grid-column: 1 / -1; font-size: 15px; color: var(--muted); margin: 0; }
.mockup { border-radius: var(--radius); }
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }

/* shop */
.shop-list { display: grid; gap: 22px; margin-top: 40px; }
.shop-item { --accent: var(--vc); display: grid; grid-template-columns: 150px 1fr auto; gap: 28px; align-items: center; background: var(--bg-3); border: 1px solid var(--line); border-left: 4px solid var(--vc); border-radius: var(--radius); padding: 20px; }
.shop-item img { border-radius: 4px; }
.shop-item h3 { margin-bottom: 6px; }
.shop-item p { color: var(--muted); font-size: 16px; margin: 0; }
.shop-item .buy { display: grid; gap: 10px; min-width: 230px; }
.shop-item .buy .price { margin: 0; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 44px 0; color: var(--muted); font-size: 15px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; align-items: center; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--text); }

@media (max-width: 980px) {
  .volumes { grid-template-columns: repeat(2, 1fr); }
  .review, .about, .contact, .split, .vol-hero .wrap { grid-template-columns: 1fr; gap: 36px; }
  .vol-hero .cover { max-width: 320px; }
  .shop-item { grid-template-columns: 110px 1fr; }
  .shop-item .buy { grid-column: 1 / -1; }
}
@media (max-width: 820px) {
  .menu-toggle { display: block; }
  .nav { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 24px 20px; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 14px; border: 0; padding: 14px; }
}
@media (max-width: 560px) {
  body { font-size: 17px; }
  .wrap { padding: 0 16px; }
  section { padding: 68px 0; }
  .volumes { grid-template-columns: 1fr 1fr; gap: 12px; }
  .vol-card .body { padding: 14px; }
  .vol-card h3 { font-size: 21px; }
  .vol-card .notes { display: none; }
  .vol-card .price strong { font-size: 24px; }
  .vol-card .btns .btn { width: 100%; }
  .buy-box { grid-template-columns: 1fr; }
  .shop-item { grid-template-columns: 80px 1fr; gap: 16px; padding: 14px; align-items: center; }
  .shop-item p { display: none; }
  .shop-item h3 { margin: 0; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } .hero video { display: none; } }

/* workbook / pré-venda */
:root { --gold: #f2b43c; }
.announce { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; padding: 9px 16px; background: linear-gradient(90deg, #0d2a44, #12395c 55%, #3a2f12); color: var(--text); text-decoration: none; font-size: 15px; text-align: center; border-bottom: 1px solid rgba(242,180,60,.35); }
.announce b { color: var(--gold); font: 700 14px/1 var(--head); letter-spacing: .16em; text-transform: uppercase; }
.announce i { font-style: normal; color: var(--gold); transition: transform .2s; }
.announce:hover i { transform: translateX(4px); }
.workbook-teaser { --accent: var(--gold); position: relative; overflow: hidden; background: radial-gradient(60% 90% at 90% 30%, rgba(47,120,180,.28), transparent 70%), radial-gradient(40% 60% at 100% 100%, rgba(242,180,60,.18), transparent 70%), var(--bg); }
.workbook-teaser .lead { font-size: 21px; }
.wb-cover { justify-self: center; max-width: 360px; width: 100%; }
.wb-cover img { border-radius: 6px; box-shadow: 0 30px 70px rgba(0,0,0,.6); transform: rotate(2deg); transition: transform .3s; }
.wb-cover:hover img { transform: rotate(0); }
.soon-box { background: var(--bg-3); border: 1px dashed rgba(242,180,60,.55); border-radius: var(--radius); padding: 22px; }
.soon-box p { margin: 12px 0 0; }
.soon-box a { color: var(--gold); }
.soon-badge { display: inline-block; background: var(--gold); color: #0c0d0f; font: 700 15px/1 var(--head); letter-spacing: .16em; text-transform: uppercase; padding: 8px 14px; border-radius: 999px; }
@media (max-width: 980px) { .wb-cover { max-width: 280px; grid-row: 1; } }
.price-note { margin: -10px 0 14px; font-size: 14px; color: var(--muted); letter-spacing: .02em; }
.buy-box .price-note { margin: -4px 0 4px; }

/* mockups sem fundo */
.mockup-stage { position: relative; display: grid; place-items: center; padding: 6% 4% 10%; isolation: isolate; }
.mockup-stage::before { content: ""; position: absolute; inset: 4% 6% 14%; z-index: -1; border-radius: 50%; background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 38%, transparent), transparent 75%); filter: blur(10px); }
.mockup-stage::after { content: ""; position: absolute; left: 18%; right: 18%; bottom: 7%; height: 28px; z-index: -1; border-radius: 50%; background: radial-gradient(closest-side, rgba(0,0,0,.75), transparent); filter: blur(6px); }
.mockup-stage .mockup { width: 100%; max-width: 440px; border-radius: 0; filter: drop-shadow(0 24px 40px rgba(0,0,0,.55)); transform: rotate(-2deg); transition: transform .5s cubic-bezier(.2,.7,.2,1); animation: float 7s ease-in-out infinite; }
.mockup-stage:hover .mockup { transform: rotate(0) scale(1.02); }
@keyframes float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -10px; } }
@media (prefers-reduced-motion: reduce) { .mockup-stage .mockup { animation: none; } }

/* about: duas fotos */
.about-photos { position: relative; padding: 0 14% 18% 0; }
.about .about-photos img { border-radius: var(--radius); width: 100%; aspect-ratio: auto; object-fit: cover; }
.about-photos .main { aspect-ratio: 1122/1402; box-shadow: 0 30px 60px rgba(0,0,0,.45); }
.about-photos .inset { position: absolute; right: 0; bottom: 0; width: 46% !important; aspect-ratio: 4/5 !important; object-position: 40% 30%; border: 6px solid var(--bg-2); box-shadow: 0 20px 40px rgba(0,0,0,.55); }
@media (max-width: 980px) { .about-photos { max-width: 520px; } }

/* método + foto */
.method { display: grid; grid-template-columns: 1.35fr .65fr; gap: 56px; align-items: center; }
.method .features { grid-template-columns: repeat(2, 1fr); }
.method-photo { width: 100%; aspect-ratio: 3/4; object-fit: cover; object-position: 50% 30%; border-radius: var(--radius); box-shadow: 0 30px 60px rgba(0,0,0,.45); }
@media (max-width: 980px) { .method { grid-template-columns: 1fr; gap: 36px; } .method-photo { max-width: 460px; aspect-ratio: 4/5; } }
@media (max-width: 560px) { .method .features { grid-template-columns: 1fr 1fr; gap: 10px; } .method .feature { padding: 16px; } .method .feature b { font-size: 32px; } }

/* seletor de idioma */
.site-header .wrap > .logo { order: 1; }
.site-header .wrap > .nav { order: 2; margin-left: auto; }
.header-right { order: 3; display: flex; align-items: center; gap: 18px; }
.lang { display: flex; align-items: center; gap: 6px; font: 600 15px/1 var(--head); letter-spacing: .12em; }
.lang a { text-decoration: none; color: var(--muted); padding: 6px 4px; border-radius: 4px; }
.lang a:hover { color: var(--text); }
.lang a[aria-current] { color: var(--text); box-shadow: inset 0 -2px 0 var(--accent); }
.lang span { color: var(--line); }
@media (max-width: 820px) { .nav { margin-left: 0; } }

/* bandeiras */
.lang { gap: 8px; }
.lang a { display: inline-flex; padding: 3px; border-radius: 5px; line-height: 0; opacity: .55; filter: saturate(.7); transition: opacity .2s, filter .2s, box-shadow .2s; box-shadow: none; }
.lang a:hover { opacity: 1; filter: none; }
.lang a[aria-current] { opacity: 1; filter: none; box-shadow: 0 0 0 2px var(--accent); }
.lang svg { width: 26px; height: 17px; border-radius: 2px; display: block; }

/* formulários */
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.contact-form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form .check { flex-direction: row; display: flex; align-items: center; gap: 10px; text-transform: none; letter-spacing: 0; font: 400 16px var(--body); color: var(--muted); cursor: pointer; }
.contact-form .check input { width: 18px; height: 18px; accent-color: var(--accent); }
.contact-form .btn { justify-self: start; }
.contact-form .btn:disabled, .subscribe-form .btn:disabled { opacity: .6; cursor: wait; }
.form-status { margin: 0; font-size: 16px; min-height: 1.4em; }
.form-status.ok { color: var(--c4); }
.form-status.err { color: var(--c2); }
.newsletter { padding: 72px 0; background: linear-gradient(120deg, #0f2233, #13161b 55%, #2a2310); border-top: 1px solid var(--line); }
.newsletter .wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.newsletter h2 { font-size: clamp(30px, 4vw, 44px); }
.newsletter p.muted { margin: 0; }
.subscribe-form { display: grid; grid-template-columns: 1fr auto; gap: 12px; }
.subscribe-form input[type=email] { width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: 999px; color: var(--text); font: 400 17px var(--body); padding: 14px 20px; }
.subscribe-form input[type=email]:focus { outline: 2px solid var(--accent); border-color: transparent; }
.subscribe-form .form-status { grid-column: 1 / -1; }
@media (max-width: 820px) { .newsletter .wrap { grid-template-columns: 1fr; gap: 24px; } }
@media (max-width: 560px) { .contact-form .row2 { grid-template-columns: 1fr; } .subscribe-form { grid-template-columns: 1fr; } .subscribe-form .btn { width: 100%; } }
.soon-box .btns { margin-top: 16px; }
.soon-box .btn { color: #0c0d0f; }
.soon-box .btn.ghost { color: var(--text); }