:root {
  --bk-project-blue: #2563eb;
  --bk-project-blue-dark: #1d4ed8;
  --bk-project-ink: #172033;
  --bk-project-muted: #667085;
  --bk-project-line: #e3e8ef;
  --bk-project-soft: #f7f9fc;
}

html { scroll-behavior: smooth; }
body.bk-project-page { overflow-x: hidden; color: var(--bk-project-ink); background: #fff; }
.bk-project-page img { max-width: 100%; }
.bk-project-page .site-header { background: rgba(255,255,255,.96); }
.bk-project-page .buckapi-navbar .navbar-collapse { background: rgba(255,255,255,.98); }

.bk-project-breadcrumbs { padding: 28px 0 0; background: #fff; }
.bk-project-breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; color: #87909f; font-size: 12px; }
.bk-project-breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: 8px; color: #c0c7d1; }
.bk-project-breadcrumbs a { color: #536176; text-decoration: none; }
.bk-project-breadcrumbs a:hover { color: var(--bk-project-blue); }

.bk-project-hero { position: relative; padding: 56px 0 82px; overflow: hidden; background: linear-gradient(180deg,#fff 0%,#f7faff 100%); }
.bk-project-hero::after { position: absolute; top: -220px; right: -180px; width: 520px; height: 520px; content: ""; background: radial-gradient(circle,rgba(37,99,235,.11),transparent 68%); pointer-events: none; }
.bk-project-hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0,.78fr) minmax(480px,1.22fr); gap: 64px; align-items: center; }
.bk-project-eyebrow { display: inline-block; margin-bottom: 16px; color: var(--bk-project-blue); font-size: 11px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; }
.bk-project-hero h1 { margin: 0 0 20px; color: #111827; font-size: clamp(46px,5.4vw,76px); font-weight: 800; line-height: .98; letter-spacing: -3px; }
.bk-project-lead { margin: 0 0 25px; color: var(--bk-project-muted); font-size: 17px; line-height: 1.75; }
.bk-project-country-line { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; color: #344054; font-size: 13px; font-weight: 700; }
.bk-project-country-line img { width: 30px; height: 21px; object-fit: cover; border: 1px solid #d7dce3; border-radius: 2px; }
.bk-project-tags-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 30px; padding: 0; list-style: none; }
.bk-project-tags-list li { padding: 8px 11px; color: #475467; background: #fff; border: 1px solid var(--bk-project-line); border-radius: 8px; font-size: 11px; font-weight: 700; }
.bk-project-facts { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; margin: 0 0 24px; }
.bk-project-facts div { min-width: 0; padding: 11px 12px; background: rgba(255,255,255,.72); border: 1px solid var(--bk-project-line); border-radius: 10px; }
.bk-project-facts dt { margin: 0 0 3px; color: #87909f; font-size: 9px; font-weight: 800; letter-spacing: .8px; text-transform: uppercase; }
.bk-project-facts dd { margin: 0; color: #344054; font-size: 11px; font-weight: 700; line-height: 1.4; }
.bk-project-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.bk-project-button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 48px; padding: 12px 18px; border: 1px solid var(--bk-project-line); border-radius: 11px; color: #344054; background: #fff; font-size: 12px; font-weight: 800; text-decoration: none; transition: .2s ease; }
.bk-project-button-primary { color: #fff; background: var(--bk-project-blue); border-color: var(--bk-project-blue); box-shadow: 0 12px 26px rgba(37,99,235,.22); }
.bk-project-button:hover { color: var(--bk-project-blue); border-color: rgba(37,99,235,.35); text-decoration: none; transform: translateY(-2px); }
.bk-project-button-primary:hover { color: #fff; background: var(--bk-project-blue-dark); }
.bk-project-hero-media { min-width: 0; }
.bk-project-cover { overflow: hidden; background: #e9eef5; border: 1px solid #dfe5ed; border-radius: 22px; box-shadow: 0 28px 65px rgba(23,32,51,.16); }
.bk-project-cover img { display: block; width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.bk-project-page[data-project="appverificar"] .bk-project-cover img { height: auto; aspect-ratio: auto; object-fit: contain; }
.bk-project-page[data-project="hand_tracking"] .bk-project-cover img { height: auto; aspect-ratio: auto; object-fit: contain; }
.bk-project-page[data-project="vision_artificial"] .bk-project-cover img { height: auto; aspect-ratio: auto; object-fit: contain; }
.bk-project-page[data-project="water_flow"] .bk-project-cover img { height: auto; aspect-ratio: auto; object-fit: contain; }
.bk-project-page[data-project="hand_tracking"] .bk-browser { border-radius: 22px; box-shadow: 0 28px 65px rgba(23,32,51,.16); }
.bk-project-page[data-project="hand_tracking"] .bk-project-showcase-full { border-radius: 28px; }
.bk-project-cover-portrait img { aspect-ratio: 4/5; object-position: top; }

.bk-project-section { padding: 92px 0; }
.bk-project-section-soft { background: var(--bk-project-soft); }
.bk-project-copy { display: grid; grid-template-columns: minmax(220px,.42fr) minmax(0,.86fr); gap: 70px; max-width: 980px; }
.bk-project-section-label { display: block; margin-bottom: 10px; color: var(--bk-project-blue); font-size: 10px; font-weight: 800; letter-spacing: 1.4px; text-transform: uppercase; }
.bk-project-section h2 { margin: 0; color: #172033; font-size: clamp(31px,4vw,48px); font-weight: 800; line-height: 1.08; letter-spacing: -1.5px; }
.bk-project-copy p { margin: 0; color: var(--bk-project-muted); font-size: 17px; line-height: 1.9; }
.bk-project-feature-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.bk-project-feature-card { min-width: 0; padding: 24px; background: #fff; border: 1px solid var(--bk-project-line); border-radius: 16px; box-shadow: 0 12px 28px rgba(23,32,51,.04); }
.bk-project-feature-card i { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; margin-bottom: 17px; color: var(--bk-project-blue); background: #eff6ff; border-radius: 10px; font-size: 15px; }
.bk-project-feature-card h3 { margin: 0 0 9px; color: var(--bk-project-ink); font-size: 16px; font-weight: 800; line-height: 1.3; }
.bk-project-feature-card p { margin: 0; color: var(--bk-project-muted); font-size: 13px; line-height: 1.65; }
.bk-project-detail-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.bk-project-detail-card { padding: 30px; border: 1px solid var(--bk-project-line); border-radius: 18px; }
.bk-project-detail-card h2 { margin-bottom: 14px; font-size: clamp(25px,3vw,34px); }
.bk-project-detail-card p { margin: 0; color: var(--bk-project-muted); font-size: 15px; line-height: 1.8; }
.bk-project-detail-card ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 0; padding: 0; list-style: none; }
.bk-project-detail-card li { padding: 8px 10px; color: #475467; background: #f7f9fc; border: 1px solid var(--bk-project-line); border-radius: 8px; font-size: 11px; font-weight: 700; }
.bk-project-showcase-heading { max-width: 720px; margin-bottom: 38px; }
.bk-project-showcase-heading p { margin: 14px 0 0; color: var(--bk-project-muted); line-height: 1.75; }
.bk-project-showcase-full, .bk-project-showcase-grid, .bk-project-device-composition, .bk-project-phone-copy { margin-top: 34px; }
.bk-project-showcase-full { padding: clamp(16px,3vw,42px); background: #edf2f8; border-radius: 26px; }
.bk-project-showcase-full > img { display: block; width: 100%; height: auto; border-radius: 14px; }
.bk-project-app-showcase-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(320px, .7fr); gap: clamp(28px, 5vw, 72px); align-items: center; margin-top: 34px; }
.bk-project-app-showcase-grid .bk-project-showcase-full { margin: 0; }
.bk-project-app-features .bk-project-showcase-heading { margin-bottom: 22px; }
.bk-project-app-features .bk-project-showcase-heading h2 { font-size: clamp(28px, 3vw, 38px); }
.bk-project-app-features .bk-project-feature-grid { grid-template-columns: 1fr; gap: 12px; }
.bk-project-app-features .bk-project-feature-card { display: grid; grid-template-columns: 36px 1fr; column-gap: 14px; padding: 17px; }
.bk-project-app-features .bk-project-feature-card i { grid-row: span 2; margin: 0; }
.bk-project-app-features .bk-project-feature-card h3 { margin: 1px 0 5px; }
.bk-project-showcase-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.bk-project-showcase-grid > * { min-width: 0; }
.bk-project-phone-row { display: flex; justify-content: center; align-items: flex-start; gap: clamp(18px,4vw,52px); padding: 40px 10px; }
.bk-project-phone-row-three .bk-phone { width: min(27%,280px); }
.bk-project-phone-copy { display: grid; grid-template-columns: minmax(0,1fr) minmax(240px,.5fr); gap: 70px; align-items: center; }

.bk-browser { overflow: hidden; background: #fff; border: 1px solid #dce3ec; border-radius: 18px; box-shadow: 0 24px 55px rgba(23,32,51,.13); }
.bk-browser-toolbar { display: flex; align-items: center; gap: 7px; height: 42px; padding: 0 16px; background: #f2f5f8; border-bottom: 1px solid #e1e6ed; }
.bk-browser-toolbar span { width: 9px; height: 9px; background: #c7d0dc; border-radius: 50%; }
.bk-browser-screen img { display: block; width: 100%; height: auto; }
.bk-project-carousel { overflow: hidden; }
.bk-project-carousel { width: min(100%, 420px); margin-inline: auto; }
.bk-project-carousel .carousel-inner { overflow: hidden; background: #0f172a; border-radius: 0 0 18px 18px; }
.bk-project-carousel .carousel-item { min-height: 0; aspect-ratio: 9 / 16; background: #0f172a; }
.bk-project-carousel .carousel-item img { display: block; width: 100%; height: 100%; object-fit: contain; object-position: center; background: #0f172a; }
.bk-project-carousel .carousel-control-prev,
.bk-project-carousel .carousel-control-next { width: 12%; opacity: .95; }
.bk-project-carousel .carousel-control-prev-icon,
.bk-project-carousel .carousel-control-next-icon { width: 46px; height: 46px; background-color: rgba(15, 23, 42, .58); background-size: 16px 16px; border-radius: 999px; box-shadow: 0 10px 24px rgba(15, 23, 42, .24); }
.bk-project-carousel .carousel-control-prev-icon { transform: translateX(-8px); }
.bk-project-carousel .carousel-control-next-icon { transform: translateX(8px); }

.bk-phone { position: relative; width: min(100%,290px); margin-inline: auto; padding: 10px; background: #151a23; border: 1px solid #3d4653; border-radius: 38px; box-shadow: 0 25px 50px rgba(15,23,42,.24); }
.bk-phone-island { position: absolute; z-index: 2; top: 17px; left: 50%; width: 30%; height: 18px; background: #0b0e13; border-radius: 999px; transform: translateX(-50%); }
.bk-phone-screen { overflow: hidden; background: #eef2f6; border-radius: 29px; }
.bk-phone-screen img { display: block; width: 100%; height: auto; min-height: 480px; max-height: 620px; object-fit: cover; object-position: top; }

.bk-project-device-composition { position: relative; padding: 18px 90px 90px 0; }
.bk-project-device-composition .bk-phone { position: absolute; right: 0; bottom: 0; width: 24%; }
.bk-project-device-composition .bk-phone-screen img { min-height: 320px; }

.bk-project-video { overflow: hidden; background: #101828; border-radius: 22px; box-shadow: 0 25px 55px rgba(23,32,51,.15); }
.bk-project-video video { display: block; width: 100%; height: auto; }
.bk-project-back { padding: 42px 0; border-top: 1px solid var(--bk-project-line); }
.bk-project-back-nav { display: flex; justify-content: center; }

.bk-project-page .bk-final-cta { padding-top: 72px; }
.bk-project-page .bk-footer-bottom span { color: inherit; }

@media (max-width: 991px) {
  .bk-project-hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .bk-project-hero-copy { max-width: 750px; }
  .bk-project-hero-media { max-width: 780px; }
  .bk-project-copy { gap: 40px; }
  .bk-project-feature-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .bk-project-app-showcase-grid { grid-template-columns: 1fr; max-width: 780px; }
  .bk-project-app-features .bk-project-feature-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 767px) {
  .bk-project-breadcrumbs { padding-top: 20px; }
  .bk-project-hero { padding: 40px 0 62px; }
  .bk-project-hero h1 { font-size: 46px; letter-spacing: -2px; }
  .bk-project-lead { font-size: 15px; }
  .bk-project-section { padding: 68px 0; }
  .bk-project-copy, .bk-project-phone-copy { grid-template-columns: 1fr; gap: 24px; }
  .bk-project-facts, .bk-project-feature-grid, .bk-project-detail-grid { grid-template-columns: 1fr; }
  .bk-project-showcase-grid { grid-template-columns: 1fr; }
  .bk-project-app-showcase-grid { gap: 32px; }
  .bk-project-app-features .bk-project-feature-grid { grid-template-columns: 1fr; }
  .bk-project-device-composition { display: grid; gap: 28px; padding: 0; }
  .bk-project-device-composition .bk-phone { position: relative; right: auto; bottom: auto; width: min(72%,290px); }
  .bk-project-phone-row { flex-wrap: wrap; }
  .bk-project-phone-row-three .bk-phone { width: min(44%,260px); }
}

@media (max-width: 430px) {
  .bk-project-hero h1 { font-size: 39px; }
  .bk-project-actions { display: grid; }
  .bk-project-button { width: 100%; }
  .bk-project-cover { border-radius: 16px; }
  .bk-project-section { padding: 56px 0; }
  .bk-project-showcase-full { margin-right: -4px; margin-left: -4px; border-radius: 18px; }
  .bk-project-carousel .carousel-control-prev,
  .bk-project-carousel .carousel-control-next { width: 16%; }
  .bk-project-carousel .carousel-control-prev-icon,
  .bk-project-carousel .carousel-control-next-icon { width: 40px; height: 40px; }
  .bk-project-phone-row-three .bk-phone { width: min(78%,270px); }
  .bk-phone { border-radius: 32px; }
  .bk-phone-screen { border-radius: 24px; }
}

@media (max-width: 430px) {
  .bk-project-carousel { width: min(100%, 360px); }
  .bk-project-carousel .carousel-inner { border-radius: 0 0 14px 14px; }
  .bk-project-carousel .carousel-control-prev,
  .bk-project-carousel .carousel-control-next { width: 18%; }
  .bk-project-carousel .carousel-control-prev-icon,
  .bk-project-carousel .carousel-control-next-icon { width: 34px; height: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .bk-project-button { transition: none; }
}