/* ---------- Site header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--color-white);
  border-bottom: 4px solid var(--color-orange);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: var(--header-height);
}

.site-header__logo img {
  width: auto;
  height: 3.5rem;
}

@media (min-width: 48em) {
  .site-header__logo img {
    height: 4rem;
  }
}

/* ---------- Buttons ---------- */
.button {
  display: inline-block;
  padding: var(--space-xs) var(--space-lg);
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

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

.button--primary:hover {
  background-color: var(--color-orange-dark);
}

.button--dark {
  background-color: var(--color-charcoal-deep);
  color: var(--color-white);
}

.button--dark:hover {
  background-color: var(--color-white);
  color: var(--color-charcoal-deep);
}

.button--small {
  padding: var(--space-2xs) var(--space-md);
  font-size: var(--fs-xs);
}

/* ---------- Service cards ----------
 * Every card is the same width and height. The grid uses twice as many
 * tracks as visible columns (each card spans 2) so an incomplete last
 * row can be offset by one track and sit centred.
 */
.card-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  grid-auto-rows: 1fr;
}

.service-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  background-color: var(--color-white);
  border-top: 4px solid var(--color-orange);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.12);
}

.service-card__title {
  margin-bottom: var(--space-sm);
}

.service-card p {
  font-size: var(--fs-sm);
}

/* 2 columns */
@media (min-width: 36em) {
  .card-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .card-grid > * {
    grid-column: span 2;
  }

  .card-grid > :last-child:nth-child(odd) {
    grid-column: 2 / span 2;
  }

  /* Titles reserve two lines so every paragraph starts at the same height */
  .service-card__title {
    min-height: 2.3em;
  }
}

/* 4 columns */
@media (min-width: 60em) {
  .card-grid {
    grid-template-columns: repeat(8, 1fr);
    gap: var(--space-lg);
  }

  .card-grid > *,
  .card-grid > :last-child:nth-child(odd) {
    grid-column: span 2;
  }

  /* Centre an incomplete last row of 3, 2 or 1 cards */
  .card-grid > :nth-child(4n + 1):nth-last-child(3) {
    grid-column: 2 / span 2;
  }

  .card-grid > :nth-child(4n + 1):nth-last-child(2) {
    grid-column: 3 / span 2;
  }

  .card-grid > :nth-child(4n + 1):last-child {
    grid-column: 4 / span 2;
  }
}

/* ---------- Bullet list ---------- */
.tick-list {
  display: grid;
  gap: var(--space-xs);
  padding: 0;
  list-style: none;
}

.tick-list li {
  position: relative;
  padding-left: var(--space-lg);
  font-size: var(--fs-sm);
}

.tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.6em;
  height: 0.6em;
  background-color: var(--color-orange);
  transform: rotate(45deg);
}

@media (min-width: 36em) {
  .tick-list {
    grid-template-columns: repeat(2, 1fr);
    column-gap: var(--space-xl);
  }
}

@media (min-width: 60em) {
  .tick-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- Round arrow buttons ---------- */
.arrow-button {
  display: inline-grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background-color: var(--color-charcoal);
  color: var(--color-white);
  transition: background-color var(--transition), opacity var(--transition);
}

.arrow-button:hover {
  background-color: var(--color-orange);
}

.arrow-button:disabled {
  opacity: 0.35;
  cursor: default;
}

.arrow-button:disabled:hover {
  background-color: var(--color-charcoal);
}

.arrow-button svg {
  width: 1.25rem;
  height: 1.25rem;
}

.arrow-button--light {
  background-color: rgb(255 255 255 / 0.2);
}

.arrow-button--light:hover {
  background-color: var(--color-orange);
}

/* ---------- Carousel ---------- */
.carousel {
  position: relative;
}

.carousel__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 85%;
  gap: var(--space-lg);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 0 0 var(--space-md);
  margin: 0;
  list-style: none;
  scrollbar-width: none;
}

.carousel__track::-webkit-scrollbar {
  display: none;
}

.carousel__slide {
  scroll-snap-align: start;
}

.carousel__controls {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

@media (min-width: 36em) {
  .carousel__track {
    grid-auto-columns: calc((100% - var(--space-lg)) / 2);
  }
}

@media (min-width: 60em) {
  .carousel__track {
    grid-auto-columns: calc((100% - 3 * var(--space-lg)) / 4);
  }

  .carousel__controls {
    position: absolute;
    inset: 30% calc(-1 * var(--space-sm)) auto;
    justify-content: space-between;
    margin: 0;
    pointer-events: none;
  }

  .carousel__controls .arrow-button {
    pointer-events: auto;
  }
}

/* ---------- Project tile ---------- */
.project-tile img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.project-tile figcaption {
  margin-top: var(--space-sm);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- Testimonials / stories slider ---------- */
.testimonials {
  display: grid;
  min-height: 16rem;
  place-items: center;
  text-align: center;
}

.testimonial {
  grid-area: 1 / 1;
  max-width: 40rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 400ms ease, visibility 400ms ease;
}

.testimonial.is-active {
  opacity: 1;
  visibility: visible;
}


/* ---------- Forms ---------- */
.form-panel {
  padding: var(--space-lg);
  background-color: var(--color-white);
  border-top: 4px solid var(--color-orange);
  box-shadow: 0 12px 32px rgb(0 0 0 / 0.25);
  color: var(--color-text);
  text-align: left;
}

.contact-form {
  display: grid;
  gap: var(--space-md);
}

.contact-form[hidden] {
  display: none;
}

.form-row {
  display: grid;
  gap: var(--space-md);
}

.form-field {
  display: grid;
  gap: var(--space-2xs);
}

.form-field label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
}

.form-field label span[aria-hidden="true"],
.form-note span {
  color: var(--color-orange-dark);
}

.form-field__optional {
  font-weight: var(--fw-regular);
  color: var(--color-grey-500);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: var(--space-sm);
  border: 2px solid var(--color-grey-200);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-field textarea {
  resize: vertical;
  min-height: 8rem;
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: var(--color-grey-500);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-orange);
  outline: none;
}

.form-field input:focus-visible,
.form-field select:focus-visible,
.form-field textarea:focus-visible {
  outline: 3px solid var(--color-orange-light);
  outline-offset: 0;
}

.form-field [aria-invalid="true"] {
  border-color: var(--color-error);
}

.form-field__error {
  min-height: 0;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-error);
}

.form-field__error:empty {
  display: none;
}

.form-field__input--short {
  max-width: 12rem;
}

.form-note {
  font-size: var(--fs-xs);
  color: var(--color-grey-500);
}

.contact-form .button {
  justify-self: start;
  padding-block: var(--space-sm);
}

@media (min-width: 36em) {
  .form-panel {
    padding: var(--space-xl);
  }

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

/* ---------- Form success message ---------- */
.form-success {
  display: grid;
  justify-items: center;
  gap: var(--space-sm);
  padding-block: var(--space-xl);
  text-align: center;
  animation: form-success-in 400ms ease both;
}

.form-success[hidden] {
  display: none;
}

.form-success:focus {
  outline: none;
}

.form-success__icon {
  width: 3.5rem;
  height: 3.5rem;
  color: var(--color-orange);
}

.form-success h3 {
  font-size: var(--fs-lg);
}

.form-success p {
  margin-bottom: var(--space-sm);
}

@keyframes form-success-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Site footer ---------- */
.site-footer {
  padding-block: var(--space-lg);
  background-color: var(--color-charcoal-deep);
  color: var(--color-grey-200);
  font-size: var(--fs-sm);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm) var(--space-xl);
  text-align: center;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}

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

.site-footer a:hover {
  color: var(--color-orange);
}

@media (min-width: 48em) {
  .site-footer__inner {
    justify-content: space-between;
  }
}

/* ---------- Cookie banner ---------- */
.cookie-banner {
  position: fixed;
  inset: auto 0 0;
  z-index: 20;
  padding-block: var(--space-md);
  background-color: var(--color-charcoal-deep);
  border-top: 4px solid var(--color-orange);
  box-shadow: 0 -8px 24px rgb(0 0 0 / 0.2);
  color: var(--color-white);
  animation: cookie-banner-in 300ms ease both;
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-banner__inner {
  display: grid;
  gap: var(--space-md);
}

.cookie-banner__text {
  font-size: var(--fs-sm);
  max-width: none;
}

.cookie-banner__text a {
  color: var(--color-white);
  font-weight: var(--fw-semibold);
}

.cookie-banner__text a:hover {
  color: var(--color-orange);
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
}

.cookie-banner__actions .button {
  flex: 1;
  text-align: center;
}

/* Leave room so the banner never covers the footer links */
body.has-cookie-banner {
  padding-bottom: 9rem;
}

@media (min-width: 48em) {
  .cookie-banner__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: var(--space-xl);
  }

  .cookie-banner__actions .button {
    flex: none;
    min-width: 8rem;
  }

  body.has-cookie-banner {
    padding-bottom: 5rem;
  }
}

@keyframes cookie-banner-in {
  from {
    transform: translateY(100%);
  }

  to {
    transform: none;
  }
}