*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ob-ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, var(--ob-blue-100), transparent 55%),
    linear-gradient(180deg, var(--ob-blue-50), var(--ob-white) 40%, var(--ob-white));
  line-height: 1.65;
}

img,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--ob-blue-700);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--ob-blue-600);
}

.container {
  width: min(100% - 2rem, var(--ob-max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ob-line);
}

.header-inner {
  min-height: var(--ob-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ob-ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand span {
  color: var(--ob-blue-600);
}

.nav {
  display: none;
  align-items: center;
  gap: 1.25rem;
}

.nav a {
  color: var(--ob-ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--ob-blue-700);
}

.nav-toggle {
  border: 1px solid var(--ob-line);
  background: var(--ob-white);
  color: var(--ob-ink);
  border-radius: var(--ob-radius);
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
}

.nav-toggle[aria-expanded="true"] + .nav,
.nav.is-open {
  display: flex;
}

@media (max-width: 1023px) {
  .nav {
    position: absolute;
    inset: var(--ob-header-h) 0 auto 0;
    background: var(--ob-white);
    border-bottom: 1px solid var(--ob-line);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.25rem;
    gap: 0.75rem;
  }

  .nav.is-open {
    display: flex;
  }
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }

  .nav {
    display: flex;
    position: static;
    border: 0;
    padding: 0;
    flex-direction: row;
    align-items: center;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.2rem;
  border-radius: var(--ob-radius);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--ob-blue-600);
  color: var(--ob-white);
}

.btn-primary:hover {
  background: var(--ob-blue-700);
  color: var(--ob-white);
}

.btn-secondary {
  background: transparent;
  border-color: var(--ob-blue-600);
  color: var(--ob-blue-700);
}

.btn-secondary:hover {
  background: var(--ob-blue-100);
  color: var(--ob-blue-700);
}

.hero {
  position: relative;
  padding: 4.5rem 0 4rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(245, 251, 254, 0.96) 0%, rgba(230, 246, 252, 0.78) 48%, rgba(0, 147, 208, 0.18) 100%),
    repeating-linear-gradient(
      90deg,
      rgba(0, 107, 163, 0.035) 0,
      rgba(0, 107, 163, 0.035) 1px,
      transparent 1px,
      transparent 72px
    );
  z-index: -1;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.15;
  margin: 0 0 0.75rem;
  color: var(--ob-ink);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 500;
  line-height: 1.25;
  margin: 0 0 1rem;
  color: var(--ob-blue-700);
  max-width: 18ch;
}

.hero-lead {
  max-width: 38rem;
  color: var(--ob-ink-soft);
  font-size: 1.1rem;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: linear-gradient(180deg, var(--ob-blue-50), var(--ob-white));
  border-block: 1px solid var(--ob-line);
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.25;
  margin: 0 0 0.75rem;
}

.section-intro {
  color: var(--ob-ink-soft);
  max-width: 42rem;
  margin: 0 0 2rem;
}

.capability-list,
.service-list,
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .capability-list,
  .service-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .service-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.capability-list li,
.service-list li,
.steps li {
  padding: 1rem 0;
  border-top: 1px solid var(--ob-line);
}

.capability-list strong,
.service-list strong,
.steps strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--ob-ink);
}

.steps li span {
  display: inline-block;
  color: var(--ob-blue-600);
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.story-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .story-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .story-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.story-item {
  border-top: 1px solid var(--ob-line);
  padding-top: 1rem;
}

.story-item h3 {
  font-size: 1.05rem;
  margin: 0.75rem 0 0.25rem;
}

.story-item p {
  margin: 0;
  color: var(--ob-ink-soft);
  font-size: 0.95rem;
}

.story-media {
  background: var(--ob-blue-100);
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.story-media video,
.story-media iframe {
  width: 100%;
  height: 100%;
  border: 0;
  object-fit: cover;
}

.page-hero {
  padding: 3rem 0 1.5rem;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

.prose {
  max-width: 46rem;
}

.prose h2,
.prose h3 {
  font-family: var(--font-display);
  line-height: 1.25;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}

.prose th,
.prose td {
  border: 1px solid var(--ob-line);
  padding: 0.65rem 0.75rem;
  text-align: left;
}

.prose th {
  background: var(--ob-blue-100);
}

.quick-answer {
  background: var(--ob-blue-100);
  border-left: 3px solid var(--ob-blue-600);
  padding: 1rem 1.15rem;
  margin: 1.5rem 0;
}

.quick-answer h2 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ob-blue-700);
}

.meta-row {
  color: var(--ob-ink-soft);
  font-size: 0.9rem;
  margin: 1rem 0 0;
}

.form-grid {
  display: grid;
  gap: 1rem;
  max-width: 36rem;
}

.form-grid label {
  display: grid;
  gap: 0.35rem;
  font-weight: 600;
}

.form-grid input,
.form-grid select,
.form-grid textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--ob-line);
  border-radius: var(--ob-radius);
  padding: 0.65rem 0.75rem;
  font: inherit;
  background: var(--ob-white);
  color: var(--ob-ink);
}

.form-grid textarea {
  min-height: 140px;
  resize: vertical;
}

.form-errors,
.errorlist {
  color: var(--ob-danger);
  margin: 0;
  padding-left: 1.1rem;
}

.messages {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.messages li {
  background: var(--ob-blue-100);
  border-left: 3px solid var(--ob-blue-600);
  padding: 0.75rem 1rem;
}

.contact-aside {
  margin-top: 2rem;
  color: var(--ob-ink-soft);
}

.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--ob-line);
  background: var(--ob-blue-50);
  padding: 2.5rem 0 2rem;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.site-footer h2 {
  font-size: 1rem;
  margin: 0 0 0.75rem;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li + li {
  margin-top: 0.4rem;
}

.site-footer a {
  color: var(--ob-ink-soft);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--ob-blue-700);
}

.disclaimer {
  margin-top: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--ob-line);
  color: var(--ob-ink-soft);
  font-size: 0.88rem;
}

.empty-note {
  color: var(--ob-ink-soft);
  font-style: italic;
}