:root {
  --color-blue: #305093;
  --color-blue-dark: #244070;
  --color-navy: #08131b;
  --color-text: #3d3541;
  --color-white: #ffffff;
  --color-light: #f5f5f5;
  --color-border: #d9d9d9;
  --font-heading: "Open Sans", sans-serif;
  --font-body: "Open Sans", sans-serif;
  --font-nav: "Roboto", sans-serif;
  --font-button: "Helvetica", sans-serif;
  --container-width: 1140px;
  --gutter: 20px;
  --radius: 3px;
  --transition: 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-white);
}

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

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

button {
  font-family: inherit;
}

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

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: 2px solid var(--color-blue);
  background: var(--color-blue);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition);
  cursor: pointer;
}

.btn:hover {
  background: var(--color-blue-dark);
  border-color: var(--color-blue-dark);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn--outline:hover {
  background: var(--color-white);
  color: var(--color-blue);
}

.btn--ghost {
  font-family: var(--font-button);
  font-size: 16px;
  font-weight: 500;
  line-height: 16px;
  padding: 10px 20px;
  border-color: var(--color-white);
  background: transparent;
  color: var(--color-white);
}

.site-header {
  background: var(--color-white);
  position: relative;
  z-index: 20;
}

.site-header__bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 10px var(--gutter);
}

.site-header__logo img {
  height: 65px;
  width: auto;
}

.site-header__toggle {
  background: none;
  border: none;
  font-size: 26px;
  color: var(--color-text);
  cursor: pointer;
}

.site-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 10px var(--gutter);
  gap: 20px;
}

.site-nav__logo img {
  height: 65px;
  width: auto;
}

.site-nav__list {
  list-style: none;
  display: flex;
  gap: 18px;
  align-items: center;
}

.site-nav__list--right {
  justify-content: flex-end;
}

.site-nav__link {
  font-family: var(--font-nav);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  transition: color var(--transition);
}

.site-nav__link:hover {
  color: var(--color-blue);
}

.site-nav__close {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  line-height: 1;
  color: var(--color-text);
  cursor: pointer;
}

.hero {
  position: relative;
  background: url("../assets/img/airplane-airport-passengers-34631-1024x683-1.jpg")
    center/cover no-repeat;
  min-height: 590px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  padding: 60px var(--gutter);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: #08131b;
  opacity: 0.75;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 59px;
  font-weight: 600;
  line-height: 59px;
  margin-bottom: 24px;
}

.about {
  padding: 80px 0;
}

.about__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: start;
}

.about figure {
  margin: 0;
}

.about figure img {
  /* border-radius: 8px; */
  box-shadow: 1px 1px 1px rgba(8, 19, 27, 0.079);
}

.about__grid > div {
  text-align: center;
}

.about__title {
  font-family: var(--font-heading);
  font-size: 17px;
  line-height: 22px;
  font-weight: 600;
  color: var(--color-blue);
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.about__subtitle {
  font-family: var(--font-heading);
  font-size: 42px;
  line-height: 42px;
  font-weight: 600;
  color: var(--color-blue);
  margin-top: 12px;
}

.about__text {
  margin: 18px auto 0;
  max-width: 470px;
  line-height: 1.7;
  color: var(--color-blue);
}

.section-heading {
  text-align: center;
  margin-bottom: 50px;
}

.products .section-heading {
  text-align: left;
}

.products .section-heading__title {
  font-size: 16px;
  letter-spacing: 0.4px;
  text-transform: none;
}

.products .section-heading__subtitle {
  font-size: 36px;
  line-height: 1.15;
}

.section-heading__title {
  font-family: var(--font-heading);
  font-size: 39px;
  line-height: 39px;
  font-weight: 600;
  color: var(--color-white);
}

.section-heading__subtitle {
  font-family: var(--font-heading);
  font-size: 19px;
  line-height: 19px;
  font-weight: 600;
  color: var(--color-white);
  margin-top: 10px;
}

.section-heading--dark .section-heading__title,
.section-heading--dark .section-heading__subtitle {
  color: var(--color-blue);
}

.products {
  background: var(--color-blue);
  padding: 60px 0;
  color: var(--color-white);
}

.services {
  padding: 60px 0;
  background: var(--color-white);
}

.services .section-heading {
  text-align: right;
  margin-bottom: 26px;
}

.services .section-heading__title {
  font-size: 16px;
  letter-spacing: 0.4px;
  text-transform: none;
}

.services .section-heading__subtitle {
  font-size: 36px;
  line-height: 1.15;
  margin-top: 10px;
}

.flip-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}

.flip-card {
  width: 100%;
  max-width: 550px;
  height: 250px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.flip-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
}

.flip-card__face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.flip-card__face--front {
  background-color: var(--color-text);
  background-size: cover;
  background-position: center;
}

.flip-card__face--front::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.8);
}

.flip-card__face--back {
  background-color: var(--color-navy);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s ease;
}

.flip-card__content {
  padding: 28px;
  width: 100%;
  text-align: center;
  transition:
    transform 0.45s ease,
    opacity 0.45s ease;
  position: relative;
  z-index: 1;
}

.flip-card__content .btn {
  margin-top: 18px;
}

.flip-card__face--back .flip-card__content {
  transform: scale(1.05);
  opacity: 0;
}

.flip-card:hover .flip-card__face--front .flip-card__content,
.flip-card.is-flipped .flip-card__face--front .flip-card__content {
  transform: scale(1.08);
  opacity: 0;
}

.flip-card:hover .flip-card__face--back,
.flip-card.is-flipped .flip-card__face--back {
  opacity: 1;
  pointer-events: auto;
}

.flip-card:hover .flip-card__face--back .flip-card__content,
.flip-card.is-flipped .flip-card__face--back .flip-card__content {
  transform: scale(1);
  opacity: 1;
}

.flip-card__title {
  font-family: var(--font-heading);
  font-size: 23px;
  line-height: 23px;
  font-weight: 400;
  margin-bottom: 10px;
}

.flip-card__text {
  font-size: 15px;
  line-height: 1.6;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  align-items: start;
}

.services__column {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-hero {
  padding: 60px 0;
}

.page-hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: start;
  text-align: center;
}

.page-hero__title {
  font-family: var(--font-heading);
  font-size: 39px;
  line-height: 39px;
  font-weight: 600;
  color: var(--color-blue);
}

.page-hero__text {
  margin-top: 10px;
  color: var(--color-blue);
  line-height: 1.6;
}

.page-hero__list {
  list-style: none;
  margin-top: 10px;
}

.page-hero__list li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 6px;
  color: var(--color-blue);
}

/* .page-hero__list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-blue);
} */

.section-title {
  font-family: var(--font-heading);
  font-size: 39px;
  line-height: 39px;
  font-weight: 600;
  color: var(--color-blue);
  text-align: center;
  margin-bottom: 30px;
}

.table-section {
  padding: 40px 0 60px;
  background: var(--color-light);
}

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

.products-section .section-title {
  color: var(--color-white);
}

.table-wrap {
  overflow-x: visible;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  table-layout: fixed;
  text-align: center;
}

.spec-table + .spec-table {
  margin-top: 24px;
}

.spec-table th,
.spec-table td {
  border: 1px solid var(--color-border);
  padding: 10px;
  text-align: center;
  vertical-align: top;
  font-size: 15px;
  color: #000000;
  word-break: break-word;
}

.spec-table td:not(:has(.brochure-link)) {
  background-color: #d2d2d2;
}

.spec-table strong {
  font-weight: 600;
  color: #000000;
}

.spec-table img {
  max-width: 100%;
  margin: 0 auto;
  display: block;
  height: auto;
}

@media (max-width: 1024px) {
  .table-wrap {
    overflow-x: auto;
  }

  .spec-table {
    min-width: 900px;
  }
}

.brochure-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: #000000;
  text-align: center;
  margin: auto;
  width: auto;
}

.spec-table td:has(.brochure-link) {
  text-align: center;
}

.brochure-link--none {
  color: var(--color-blue);
}

.icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.contact {
  padding: 60px 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.form-card {
  background: var(--color-light);
  padding: 28px;
  border-radius: var(--radius);
}

.form-title {
  font-family: var(--font-heading);
  font-size: 39px;
  line-height: 39px;
  font-weight: 600;
  color: var(--color-blue);
  margin-bottom: 24px;
}

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

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-weight: 600;
  color: var(--color-blue);
}

.form-field .required {
  color: #8a8a8a;
  font-weight: 400;
}

.form-input,
.form-select {
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: var(--font-body);
}

.form-input::placeholder,
.form-input--textarea::placeholder,
.form-select::placeholder {
  color: #999999;
}

.form-actions {
  margin-top: 20px;
}

.form-group {
  margin-top: 16px;
}

.form-field--conditional.is-hidden {
  display: none;
}

.check-group,
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}

.check-item,
.radio-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.maintenance-divider,
.form-divider {
  border: 0;
  border-top: 2px solid #000;
  margin: 40px 0;
}

.maintenance-page .contact--maintenance {
  padding-top: 0;
}

.contact__grid--maintenance {
  align-items: start;
}

.maintenance-form {
  max-width: 460px;
  width: 100%;
}

.maintenance-form__media {
  margin: 0;
}

.maintenance-form__media img {
  display: block;
  width: 100%;
  height: auto;
}

.form-grid--maintenance {
  gap: 12px 16px;
}

.form-field--full {
  grid-column: 1 / -1;
}

.maintenance-form label,
.maintenance-form legend,
.form-theme label,
.form-theme legend {
  font-family: "Open Sans", sans-serif;
  font-size: 15px;
  font-weight: 400;
  color: var(--color-blue);
}

.maintenance-form .required,
.form-theme .required {
  color: var(--color-blue);
  font-weight: 400;
}

.maintenance-form .form-input,
.maintenance-form .form-input--textarea,
.form-theme .form-input,
.form-theme .form-select,
.form-theme .form-input--textarea {
  border: 2px solid var(--color-blue);
  border-radius: 0;
  padding: 10px;
  font-family: Helvetica, sans-serif;
  font-size: 13.3333px;
  font-weight: 500;
  color: var(--color-blue);
  background: #fff;
  width: 100%;
  box-sizing: border-box;
}

.maintenance-form .form-input::placeholder,
.maintenance-form .form-input--textarea::placeholder,
.form-theme .form-input::placeholder,
.form-theme .form-input--textarea::placeholder {
  color: #999999;
}

.maintenance-form .form-group {
  margin-top: 12px;
}

.form-theme .form-group {
  margin-top: 12px;
}

.form-theme .check-group,
.form-theme .radio-group {
  gap: 6px;
  margin-top: 6px;
}

.maintenance-form .form-group--fieldset,
.form-theme .form-group--fieldset {
  border: 2px groove #f0f0f0;
  padding: 6px 12px 10px;
  margin: 8px 0 12px;
  min-width: 0;
}

.maintenance-form .radio-group {
  gap: 6px;
  margin-top: 6px;
}

.maintenance-form .form-actions {
  margin-top: 12px;
}

.btn--maintenance,
.btn--form {
  background: var(--color-blue);
  color: var(--color-white);
  border: 2px solid var(--color-white);
  border-radius: 0;
  padding: 10px 15px;
  font-family: Helvetica, sans-serif;
  font-size: 13.3333px;
  font-weight: 500;
  min-width: 100px;
}

.form-theme--plain {
  background: transparent;
  padding: 0;
  border-radius: 0;
}

.form-grid--stacked {
  grid-template-columns: 1fr;
  gap: 12px;
}

.contact__grid--rentals {
  align-items: start;
}

.rentals-form {
  max-width: 460px;
  width: 100%;
}

.rentals-form__media {
  margin: 0;
}

.rentals-form__media img {
  display: block;
  width: 100%;
  height: auto;
}

.contact-page .form-actions,
.rentals-page .form-actions {
  margin-top: 12px;
}

.form-message {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
}

.form-message--success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.form-message--error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

/* Field-level error styles */
.field-error {
  display: block;
  color: #721c24;
  font-size: 13px;
  margin-top: 4px;
  font-weight: 500;
}

.form-input.is-invalid,
.form-select.is-invalid {
  border-color: #dc3545;
  border-width: 2px;
}

.form-input.is-invalid:focus,
.form-select.is-invalid:focus {
  outline: none;
  border-color: #dc3545;
  box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

fieldset .field-error {
  margin-top: 8px;
  padding: 8px;
  background-color: #f8d7da;
  border: 1px solid #f5c6cb;
  border-radius: var(--radius);
}

.map-frame {
  height: 400px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.site-footer {
  background: var(--color-navy);
  color: var(--color-white);
  padding: 60px 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.footer__logo {
  display: inline-flex;
  margin-bottom: 20px;
}

.footer__logo img {
  height: 70px;
  width: auto;
}

.footer__text p {
  font-family: var(--font-nav);
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.footer__credit {
  font-size: 12px;
  font-family: var(--font-nav);
}

.footer__heading {
  font-family: var(--font-nav);
  font-size: 15px;
  font-weight: 600;
  line-height: 15px;
  margin-bottom: 16px;
  letter-spacing: 2.5px;
}

.footer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.footer__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  fill: currentColor;
  color: var(--color-blue);
  margin-top: 2px;
}

.footer__download {
  margin-top: 20px;
}

.site-footer .btn--outline {
  background: var(--color-blue);
  border-color: var(--color-blue);
  color: var(--color-white);
}

.site-footer .btn--outline:hover {
  background: var(--color-blue-dark);
  border-color: var(--color-blue-dark);
  color: var(--color-white);
}

@media (max-width: 900px) {
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 80%;
    max-width: 320px;
    background: var(--color-white);
    grid-template-columns: 1fr;
    align-content: start;
    transform: translateX(100%);
    transition: transform var(--transition);
    padding: 48px 24px 24px;
    gap: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  }

  .site-header__bar {
    display: flex;
  }

  .site-header.is-open .site-nav {
    transform: translateX(0);
  }

  .site-nav__logo {
    display: none;
  }

  .site-nav__close {
    display: block;
    position: absolute;
    top: 14px;
    right: 16px;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .site-nav__list + .site-nav__list {
    margin-top: 0;
  }

  .hero__title {
    font-size: 32px;
    line-height: 32px;
  }

  .about__grid,
  .page-hero__grid,
  .contact__grid,
  .services__grid,
  .footer__grid {
    grid-template-columns: 1fr;
  }

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

  .flip-card {
    height: 260px;
  }

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

@media (max-width: 480px) {
  .section-heading__title,
  .section-title,
  .page-hero__title,
  .form-title {
    font-size: 24px;
    line-height: 24px;
  }

  .section-heading__subtitle,
  .about__subtitle {
    font-size: 18px;
    line-height: 18px;
  }

  .about__title {
    font-size: 13px;
    line-height: 18px;
  }
}