:root {
  --bg: #0A1626;
  --bg-alt: #102945;
  --surface: #E6E2DB;
  --surface-strong: #B6A89A;
  --primary: #147980;
  --primary-strong: #0c787d;
  --text-on-dark: #E6E2DB;
  --text-on-light: #102945;
  --muted-on-dark: rgba(246, 241, 234, 0.72);
  --muted-on-light: rgba(19, 40, 63, 0.72);
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 20px 60px rgba(6, 16, 27, 0.22);
  --radius: 24px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Lato', sans-serif;
  background: var(--bg);
  color: var(--text-on-dark);
}

img {
  max-width: 100%;
  display: block;
}

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

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(16, 41, 69, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 12px;
}

.brand strong,
.site-footer strong,
.hero-brand-text strong {
  display: block;
  font-family: 'Nunito Sans', sans-serif;
  font-size: 1.15rem;
  letter-spacing: 0.22em;
}

.brand span,
.site-footer span,
.hero-brand-text span {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--muted-on-dark);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.social-links {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-on-dark);
  transition: background 120ms ease, border-color 120ms ease, transform 120ms ease;
}

.social-link:hover,
.social-link:focus-visible {
  background: rgba(15, 143, 149, 0.18);
  border-color: rgba(15, 143, 149, 0.45);
  transform: translateY(-1px);
}

.social-link svg {
  width: 17px;
  height: 17px;
}

.social-link--instagram:hover,
.social-link--instagram:focus-visible {
  background: rgba(221, 42, 123, 0.13);
  border-color: rgba(221, 42, 123, 0.36);
}

.social-link--whatsapp:hover,
.social-link--whatsapp:focus-visible {
  background: rgba(37, 211, 102, 0.12);
  border-color: rgba(37, 211, 102, 0.36);
}

.social-link--whatsapp svg {
  width: 15px;
  height: 15px;
}

.footer-badge {
  display: block;
  height: 34px;
  width: auto;
  max-width: 92px;
  object-fit: contain;
  opacity: 0.86;
}

.footer-badge--bni {
  margin-left: 6px;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.lang-btn {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text-on-dark);
  cursor: pointer;
  font-size: 1rem;
  transition: background 120ms ease, transform 120ms ease;
}

.lang-btn:hover,
.lang-btn:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.lang-btn.is-active {
  background: rgba(15, 143, 149, 0.22);
  box-shadow: inset 0 0 0 1px rgba(15, 143, 149, 0.45);
}

.menu {
  display: flex;
  gap: 24px;
  color: var(--muted-on-dark);
}

.menu a:hover,
.menu a:focus-visible {
  color: var(--text-on-dark);
}

.hero {
  padding: 88px 0 64px;
  background:
    radial-gradient(circle at top right, rgba(15, 143, 149, 0.18), transparent 30%),
    linear-gradient(180deg, rgba(20, 50, 79, 0.48), transparent 100%);
}

.hero-grid,
.contact-grid,
.two-column,
.split-callout {
  display: grid;
  gap: 32px;
}

.hero-grid,
.contact-grid,
.two-column,
.split-callout {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.eyebrow,
.section-label,
.hero-badge {
  font-family: 'Nunito Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.eyebrow,
.section-label {
  color: var(--primary);
  margin-bottom: 12px;
}

.hero h1,
.section h2,
.hero-card h2 {
  margin: 0 0 16px;
  font-family: 'Nunito Sans', sans-serif;
  line-height: 1.06;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  max-width: 12ch;
}

.hero-text,
.section p,
.card p,
.steps p,
.bullets li,
.contact-form label {
  font-size: 1.02rem;
  line-height: 1.8;
}

.hero-text,
.hero-card ul,
.section-dark p,
.section-dark .steps p,
.section-dark .bullets li {
  color: var(--muted-on-dark);
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  font-family: 'Nunito Sans', sans-serif;
  font-weight: 700;
  transition: transform 120ms ease, background 120ms ease, color 120ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--primary);
  color: white;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--primary-strong);
}

.button-secondary {
  border: 1px solid rgba(241, 236, 230, 0.22);
  color: var(--text-on-dark);
}

.hero-card,
.card,
.contact-form {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 32px;
  align-self: end;
}

.hero-card-brand {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
}

.hero-card-mark {
  width: 72px;
  height: 72px;
  object-fit: contain;
  flex: 0 0 auto;
}

.hero-badge {
  color: var(--surface);
  opacity: 0.9;
}

.hero-card h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  margin-top: 12px;
}

.hero-card ul {
  padding-left: 18px;
  margin: 0;
  display: grid;
  gap: 10px;
}

.section {
  padding: 88px 0;
}

.section-light {
  background: var(--surface);
  color: var(--text-on-light);
}

.section-light p,
.section-light .bullets li,
.section-light .steps p {
  color: var(--muted-on-light);
}

.section-dark {
  background: var(--bg);
  color: var(--text-on-dark);
}

.section-accent {
  background: linear-gradient(135deg, var(--bg-alt), var(--bg));
}

.cards,
.steps {
  display: grid;
  gap: 24px;
}

.cards {
  margin-top: 32px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 28px;
}

.card h3,
.steps h3 {
  margin: 0 0 10px;
  font-family: 'Nunito Sans', sans-serif;
  font-size: 1.3rem;
}

.steps {
  margin-top: 32px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.steps article {
  padding: 24px 0;
  border-top: 1px solid rgba(19, 40, 63, 0.14);
}

.section-dark .steps article {
  border-top-color: rgba(255, 255, 255, 0.1);
}

.steps span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--primary);
  font-family: 'Nunito Sans', sans-serif;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}

.bullets li {
  position: relative;
  padding-left: 22px;
}

.bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.contact-form {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 28px;
}

.contact-form label {
  display: block;
  margin-bottom: 16px;
  color: var(--text-on-dark);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-top: 8px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-on-dark);
  padding: 14px 16px;
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(15, 143, 149, 0.34);
  border-color: var(--primary);
}

.hidden {
  position: absolute;
  left: -9999px;
}

.site-footer {
  padding: 28px 0 40px;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted-on-dark);
}

@media (max-width: 980px) {
  .hero-grid,
  .contact-grid,
  .two-column,
  .split-callout,
  .cards,
  .steps {
    grid-template-columns: 1fr;
  }

  .menu {
    display: none;
  }

  .hero h1 {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
  }

  .nav {
    min-height: 72px;
  }

  .brand strong {
    font-size: 1rem;
    letter-spacing: 0.18em;
  }

  .brand span,
  .site-footer span {
    letter-spacing: 0.12em;
  }

  .hero {
    padding-top: 52px;
  }

  .nav-actions {
    gap: 8px;
  }

  .language-switch {
    padding: 4px;
  }

  .social-links {
    gap: 6px;
  }

  .social-link {
    width: 32px;
    height: 32px;
  }

  .social-link svg {
    width: 15px;
    height: 15px;
  }

  .social-link--whatsapp svg {
    width: 14px;
    height: 14px;
  }

  .footer-badge {
    height: 30px;
    max-width: 82px;
  }

  .footer-badge--bni {
    margin-left: 4px;
  }

  .lang-btn {
    width: 30px;
    height: 30px;
  }

  .hero-card-brand {
    align-items: flex-start;
  }

  .hero-card-mark {
    width: 60px;
    height: 60px;
  }

  .section {
    padding: 72px 0;
  }

  .button {
    width: 100%;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  .brand-mark {
    width: 46px;
    height: 46px;
  }

  .brand {
    gap: 10px;
  }

  .brand strong {
    font-size: 0.9rem;
    letter-spacing: 0.14em;
  }

  .brand span {
    font-size: 0.64rem;
    letter-spacing: 0.1em;
  }
}