/* Whizible Engineering — brand from company logo */
:root {
  --brand-navy: var(--brand-dark, #0077b6);
  --brand-cyan: var(--brand, #00aeef);
  --brand-slate: #64748b;
  --background: #ffffff;
  --muted: #f8fafc;
  --border: #e2e8f0;
  --card: #ffffff;
  --foreground: #0f172a;
  --max: 1280px;
  --container-px: 1.5rem;
  --font-heading: "Inter", Arial, ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", Arial, ui-sans-serif, system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--foreground);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
}

.page-wrap h2,
.page-wrap h3 {
  font-weight: 400;
}

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

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

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.font-heading {
  font-family: var(--font-heading);
}

/* Logo mark */
.logo-mark {
  width: 32px;
  height: 32px;
  background: var(--brand-navy);
  border-radius: 4px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.logo-mark__diamond {
  width: 16px;
  height: 16px;
  border: 2px solid var(--brand-cyan);
  transform: rotate(45deg);
}

.logo-mark--sm {
  width: 24px;
  height: 24px;
}

.logo-mark--sm .logo-mark__diamond {
  width: 12px;
  height: 12px;
}

/* Header */
.eng-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem var(--container-px);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.eng-header__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}

.eng-nav {
  display: none;
  align-items: center;
  gap: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--brand-slate);
}

.eng-nav a:hover {
  color: var(--foreground);
}

.eng-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.eng-header__certs {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.eng-header__certs img {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.btn-demo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  background: var(--brand-navy);
  border-radius: 4px;
  transition: background 0.2s ease;
  white-space: nowrap;
}

.btn-demo:hover {
  background: var(--brand-cyan);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 0 auto;
  background: var(--foreground);
  border-radius: 1px;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem var(--container-px) 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--background);
}

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

.nav-mobile a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--brand-slate);
}

/* Hero */
.eng-hero {
  position: relative;
  padding: 4rem 0 3rem;
  overflow: hidden;
}

.eng-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
  align-items: start;
}

.eng-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 1.2rem;
  padding: 0.4rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-cyan);
  background: var(--muted);
  border-radius: 999px;
}

.eng-hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-cyan);
}

.eng-hero__title {
  margin: 0 0 1.15rem;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.eng-hero__text {
  margin: 0 0 0.8rem;
  max-width: 36rem;
  font-size: 0.9875rem;
  line-height: 1.65;
  color: var(--brand-slate);
}

.eng-hero__text--sm {
  font-size: 0.9875rem;
  margin-bottom: 1.65rem;
}

.eng-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  background: var(--brand-gradient, var(--brand-cyan));
  border-radius: 4px;
  box-shadow: var(--brand-shadow, 0 10px 25px rgba(0, 174, 239, 0.28));
  transition: filter 0.2s ease, background 0.2s ease;
  text-align: center;
}

.btn-primary:hover {
  filter: brightness(1.05);
  background: var(--brand-dark, #0077b6);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-weight: 700;
  font-size: 1rem;
  color: var(--foreground);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: background 0.2s ease;
  text-align: center;
}

.btn-secondary:hover {
  background: var(--muted);
}

.eng-hero__visual {
  display: flex;
  justify-content: center;
}

.eng-hero__img-wrap {
  width: 100%;
  max-width: 32rem;
  border-radius: 12px;
  background: var(--muted);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.05);
}

.eng-hero__img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Logo marquee */
.eng-logos {
  margin-top: 3.5rem;
}

.eng-logos__label {
  margin: 0 0 1.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-cyan);
}

.eng-logos__track-wrap {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.eng-logos__track {
  display: flex;
  gap: 5rem;
  width: max-content;
  animation: eng-marquee 40s linear infinite;
}

.eng-logos__track:hover {
  animation-play-state: paused;
}

.eng-logos__item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 96px;
  flex-shrink: 0;
}

.eng-logos__item img {
  height: 80px;
  width: auto;
  object-fit: contain;
}

@keyframes eng-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Section shared */
.section-eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-cyan);
}

.section-title {
  margin: 0 0 1rem;
  font-family: var(--font-heading);
  font-weight: 400;
  letter-spacing: -0.02em;
  font-size: clamp(1.65rem, 3.2vw, 2.125rem);
}

.section-desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--brand-slate);
}

/* Challenge */
.eng-challenge {
  padding: 6rem 0;
  background: var(--muted);
}

.eng-challenge__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.eng-challenge__intro .section-title {
  font-size: clamp(1.65rem, 3.2vw, 2.125rem);
}

.eng-challenge__intro .section-desc {
  margin-bottom: 1.5rem;
}

.eng-challenge__accent {
  width: 5rem;
  height: 4px;
  background: var(--brand-cyan);
}

.eng-challenge__cards-label {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--brand-slate);
}

.eng-challenge__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.challenge-card {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s ease;
}

.challenge-card:hover {
  border-color: rgba(0, 174, 239, 0.4);
}

.challenge-card__num {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--brand-cyan);
  flex-shrink: 0;
}

.challenge-card__text {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.6;
}

/* Capabilities */
.eng-capabilities {
  padding: 6rem 0;
}

.eng-capabilities__intro {
  max-width: 42rem;
  margin: 0 auto 4rem;
  text-align: center;
}

.eng-capabilities__intro .section-title {
  font-size: clamp(1.65rem, 3.2vw, 2.125rem);
}

.eng-capabilities__sub {
  text-align: center;
  margin-bottom: 2.5rem;
}

.cap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.cap-card {
  padding: 2rem;
  background: var(--card);
  transition: background 0.2s ease;
}

.cap-card:hover {
  background: var(--muted);
}

.cap-card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: 1.5rem;
  border: 1px solid var(--brand-cyan);
  display: grid;
  place-items: center;
}

.cap-card__icon-line {
  width: 16px;
  height: 1px;
  background: var(--brand-cyan);
}

.cap-card__icon-circle {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--brand-cyan);
}

.cap-card__icon-square {
  width: 12px;
  height: 12px;
  background: rgba(0, 174, 239, 0.3);
}

.cap-card__icon-diamond {
  width: 16px;
  height: 16px;
  border: 1px solid var(--brand-cyan);
  transform: rotate(45deg);
}

.cap-card__icon-bar {
  width: 16px;
  height: 8px;
  border: 1px solid var(--brand-cyan);
}

.cap-card__icon-bars {
  display: flex;
  gap: 1px;
  align-items: flex-end;
}

.cap-card__icon-bars span:nth-child(1) {
  width: 4px;
  height: 12px;
  background: rgba(0, 174, 239, 0.4);
}

.cap-card__icon-bars span:nth-child(2) {
  width: 4px;
  height: 16px;
  background: rgba(0, 174, 239, 0.7);
}

.cap-card__icon-bars span:nth-child(3) {
  width: 4px;
  height: 8px;
  background: var(--brand-cyan);
}

.cap-card__icon-corner {
  width: 16px;
  height: 16px;
  border-left: 1px solid var(--brand-cyan);
  border-top: 1px solid var(--brand-cyan);
}

.cap-card__icon-grid {
  display: grid;
  grid-template-columns: repeat(2, 6px);
  gap: 1px;
}

.cap-card__icon-grid span:nth-child(1),
.cap-card__icon-grid span:nth-child(4) {
  width: 6px;
  height: 6px;
  background: var(--brand-cyan);
}

.cap-card__icon-grid span:nth-child(2),
.cap-card__icon-grid span:nth-child(3) {
  width: 6px;
  height: 6px;
  background: rgba(0, 174, 239, 0.4);
}

.cap-card__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.cap-card__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--brand-slate);
}

.eng-capabilities__certs {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  margin-top: 3rem;
}

.eng-capabilities__certs-label {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand-slate);
}

.eng-capabilities__certs-imgs {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.eng-capabilities__certs-imgs img:first-child {
  height: 64px;
}

.eng-capabilities__certs-imgs img:last-child {
  height: 56px;
}

/* Integrations */
.eng-integrations {
  padding: 6rem 0;
  background: var(--muted);
}

.eng-integrations__header {
  max-width: 42rem;
  margin: 0 auto 3rem;
  text-align: center;
}

.eng-integrations__header .section-title {
  font-size: clamp(1.65rem, 3.2vw, 2.125rem);
}

.int-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.int-card {
  padding: 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.int-card:hover {
  border-color: var(--brand-cyan);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

.int-card__icon {
  width: 32px;
  height: 32px;
  margin-bottom: 0.75rem;
  border-radius: 4px;
  background: rgba(0, 174, 239, 0.1);
  display: grid;
  place-items: center;
}

.int-card__icon-diamond {
  width: 12px;
  height: 12px;
  border: 1px solid var(--brand-cyan);
  transform: rotate(45deg);
}

.int-card__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.int-card__tag {
  margin: 0.25rem 0 0;
  font-size: 0.75rem;
  color: var(--brand-slate);
}

/* Outcomes */
.eng-outcomes {
  padding: 6rem 0;
  background: var(--brand-navy);
  color: #fff;
}

.eng-outcomes__header {
  margin-bottom: 4rem;
}

.eng-outcomes__header .section-eyebrow {
  color: var(--brand-cyan);
}

.eng-outcomes__header .section-title {
  font-size: clamp(1.65rem, 3.2vw, 2.125rem);
  color: #fff;
}

.eng-outcomes__header .section-desc {
  color: #94a3b8;
}

.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem 2rem;
}

.outcome-item {
  padding-left: 1.5rem;
  border-left: 1px solid rgba(0, 174, 239, 0.3);
}

.outcome-item__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.outcome-item__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: #94a3b8;
}

/* CTA */
.eng-cta {
  padding: 6rem var(--container-px);
}

.eng-cta__card {
  max-width: 56rem;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  text-align: center;
  background: var(--muted);
  border: 1px solid var(--border);
  border-radius: 24px;
}

.eng-cta__title {
  margin: 0 0 1.5rem;
  font-family: var(--font-heading);
  font-size: clamp(1.65rem, 3.2vw, 2.125rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.eng-cta__desc {
  margin: 0 auto 2.5rem;
  max-width: 42rem;
  font-size: 1rem;
  color: var(--brand-slate);
}

.btn-cta {
  display: inline-block;
  padding: 1.25rem 2.5rem;
  font-weight: 700;
  color: #fff;
  background: var(--brand-navy);
  border-radius: 999px;
  transition: background 0.2s ease;
}

.btn-cta:hover {
  background: var(--brand-cyan);
}

.eng-cta__note {
  margin: 1.5rem 0 0;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-slate);
}

/* Footer */
.eng-footer {
  padding: 3rem var(--container-px);
  border-top: 1px solid var(--border);
}

.eng-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  text-align: center;
}

.eng-footer__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.025em;
}

.eng-footer__copy {
  margin: 0;
  font-size: 0.75rem;
  color: var(--brand-slate);
}

/* Responsive */
@media (min-width: 640px) {
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }

  .eng-nav {
    display: flex;
  }

  .eng-header__certs {
    display: flex;
  }

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

  .eng-challenge__cards-label {
    grid-column: 1 / -1;
  }

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

  .int-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .eng-cta__card {
    padding: 4rem;
  }

  .eng-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .eng-hero {
    padding: 5rem 0 3.5rem;
  }

  .eng-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    column-gap: 4rem;
    row-gap: 1rem;
    align-items: start;
  }

  .eng-hero__visual {
    justify-content: flex-end;
  }

  .eng-challenge__grid {
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
  }

  .cap-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .eng-logos__track {
    animation: none;
  }
}