:root {
  --color-navy-950: #071525;
  --color-navy-900: #0f2742;
  --color-navy-800: #183b5e;
  --color-blue-100: #eaf3f8;
  --color-blue-50: #f5f9fc;
  --color-teal: #2f8f9d;
  --color-gold: #c99b3b;
  --color-text: #182536;
  --color-muted: #5d6c7d;
  --color-line: #d9e3eb;
  --color-white: #ffffff;
  --shadow: 0 18px 50px rgba(15, 39, 66, 0.12);
  --radius: 8px;
  --header-height: 76px;
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-white);
  font-size: 16px;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 20;
  padding: 10px 14px;
  color: var(--color-white);
  background: var(--color-navy-950);
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 16px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: var(--header-height);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(217, 227, 235, 0.8);
  backdrop-filter: blur(16px);
}

.nav {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-navy-900);
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  object-fit: contain;
  background: var(--color-white);
  border-radius: 6px;
}

.brand-name,
.brand-note {
  display: block;
}

.brand-name {
  font-weight: 700;
  line-height: 1.2;
}

.brand-note {
  color: var(--color-muted);
  font-size: 0.78rem;
  line-height: 1.25;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 8px 12px;
  color: var(--color-navy-900);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
  color: var(--color-navy-950);
  background: var(--color-blue-100);
  outline: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-line);
  border-radius: 6px;
}

.nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  margin: 3px 0;
  background: var(--color-navy-900);
}

.section {
  padding: 88px 0;
}

.section-muted {
  background: var(--color-blue-50);
}

.section-dark {
  color: var(--color-white);
  background: var(--color-navy-950);
}

.section-contact {
  background: linear-gradient(180deg, var(--color-blue-50), var(--color-white));
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: 92px 0 72px;
  color: var(--color-white);
  background:
    linear-gradient(135deg, rgba(7, 21, 37, 0.96), rgba(15, 39, 66, 0.92)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 96px);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -28% 36%;
  height: 360px;
  background: linear-gradient(90deg, rgba(47, 143, 157, 0.14), rgba(201, 155, 59, 0.18));
  transform: skewY(-8deg);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.7fr);
  gap: 54px;
  align-items: center;
}

.hero-content {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-dark .eyebrow,
.hero .eyebrow {
  color: #79d2dc;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  color: inherit;
  line-height: 1.12;
}

h1 {
  max-width: 820px;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
}

h2 {
  font-size: clamp(1.9rem, 4vw, 3.2rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  margin: 0;
}

.hero-lead {
  max-width: 680px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.16rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  line-height: 1.2;
}

.button-primary {
  color: var(--color-navy-950);
  background: var(--color-gold);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #d7ad54;
  outline: none;
}

.button-secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.35);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  outline: none;
}

.button-full {
  width: 100%;
}

.hero-panel {
  display: grid;
  gap: 16px;
}

.signal-card,
.hero-metrics,
.card,
.portfolio-card,
.contact-card,
.registration-card {
  border-radius: var(--radius);
}

.signal-card {
  padding: 22px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.signal-label {
  display: block;
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0;
}

.signal-card strong {
  font-size: 1.5rem;
}

.hero-metrics {
  display: grid;
  gap: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.hero-metrics div {
  padding: 18px;
  background: rgba(15, 39, 66, 0.88);
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.72);
}

.split,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  gap: 56px;
}

.section-copy,
.section-copy p + p,
.contact-grid p {
  color: var(--color-muted);
}

.section-copy p + p {
  margin-top: 18px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  min-height: 190px;
  padding: 24px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  box-shadow: 0 10px 32px rgba(15, 39, 66, 0.06);
}

.card h3,
.portfolio-card h3,
.solution-item h3,
.why-list h3 {
  margin-bottom: 10px;
}

.card p,
.portfolio-card p,
.solution-item p,
.why-list p,
.package-card p,
.package-card li,
.package-cta p {
  color: var(--color-muted);
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.package-card {
  display: flex;
  min-height: 360px;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: 0 12px 34px rgba(15, 39, 66, 0.07);
}

.package-card-wide {
  grid-column: span 2;
}

.package-label {
  color: var(--color-teal);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.package-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
}

.package-card strong {
  display: block;
  margin-top: auto;
  padding-top: 16px;
  color: var(--color-navy-900);
  border-top: 1px solid var(--color-line);
}

.package-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 26px;
  padding: 22px 24px;
  background: var(--color-blue-50);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.solution-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.solution-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid var(--color-line);
}

.solution-item span {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  color: var(--color-navy-900);
  background: var(--color-blue-100);
  border-radius: 6px;
  font-weight: 800;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.portfolio-card {
  min-height: 260px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.portfolio-card p {
  color: rgba(255, 255, 255, 0.74);
}

.portfolio-type {
  margin-bottom: 22px;
  color: #79d2dc;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.why-list {
  display: grid;
  gap: 20px;
}

.why-list article {
  padding-left: 18px;
  border-left: 4px solid var(--color-teal);
}

.contact-grid {
  align-items: start;
}

.contact-grid .registration-card {
  grid-column: 2;
}

.contact-grid h2 {
  margin-bottom: 18px;
}

.contact-card {
  display: grid;
  gap: 18px;
  padding: 28px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow);
  font-style: normal;
}

.contact-card div {
  display: grid;
  gap: 4px;
}

.contact-card span {
  color: var(--color-muted);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.contact-card a:not(.button) {
  color: var(--color-navy-900);
  font-weight: 700;
  text-decoration-color: rgba(47, 143, 157, 0.45);
  text-underline-offset: 4px;
}

.registration-card {
  display: grid;
  gap: 16px;
  padding: 24px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow);
}

.registration-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--color-muted);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.registration-card strong {
  display: block;
  color: var(--color-navy-900);
  font-size: 1.15rem;
}

.registration-card p {
  margin-top: 8px;
  color: var(--color-muted);
}

.bir-badge {
  width: min(100%, 420px);
  height: auto;
  border: 1px solid var(--color-line);
  border-radius: 6px;
}

.site-footer {
  padding: 38px 0;
  color: rgba(255, 255, 255, 0.78);
  background: var(--color-navy-950);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr auto;
  gap: 24px;
  align-items: start;
}

.site-footer strong {
  color: var(--color-white);
}

.site-footer p {
  max-width: 560px;
  margin-top: 8px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-white);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.copyright {
  grid-column: 1 / -1;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.92rem;
}

@media (max-width: 920px) {
  .nav-toggle {
    display: grid;
  }

  .nav-menu {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    display: none;
    grid-template-columns: 1fr;
    gap: 0;
    padding: 14px 20px 22px;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow);
  }

  .nav-menu.is-open {
    display: grid;
  }

  .nav-menu a {
    width: 100%;
    min-height: 50px;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid,
  .split,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .contact-grid .registration-card {
    grid-column: auto;
  }

  .card-grid,
  .package-grid,
  .portfolio-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .package-card-wide {
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .brand-note {
    display: none;
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 70px 0 58px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .card-grid,
  .package-grid,
  .solution-list,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .package-card-wide {
    grid-column: auto;
  }

  .card,
  .portfolio-card,
  .package-card {
    min-height: auto;
  }

  .package-cta {
    align-items: stretch;
    flex-direction: column;
  }

  .solution-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}