/* ==========================================================================
   Components shared across pages.

   Contents
     1. Header and navigation
     2. Mobile menu
     3. Hero (home)
     4. Page hero (inner pages)
     5. Marquee
     6. Stats
     7. Reasons list
     8. Filter buttons
     9. Call to action
    10. Footer
    11. Scroll progress ring

   Class names follow block__element--modifier. Layouts are written for
   phones first; wider layouts are added in min-width media queries.
   ========================================================================== */

/* 1. Header and navigation ----------------------------------------------- */

/* Sits over the dark hero. modules/header.js adds .is-scrolled once the
   page has moved and .is-hidden while scrolling down. */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  color: var(--color-on-night);
  transition: transform 0.45s var(--ease-out), background-color 0.3s, backdrop-filter 0.3s;
}

.site-header.is-scrolled {
  background: rgba(4, 26, 34, 0.78);
  backdrop-filter: blur(16px) saturate(140%);
}

.site-header.is-hidden {
  transform: translateY(-100%);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: var(--header-height);
}

.site-header__logo {
  margin-right: auto;
}

.site-header__logo img {
  width: auto;
  height: 44px;
}

.site-nav,
.site-header__cta {
  display: none;
}

.site-nav__list {
  display: flex;
  gap: 36px;
}

.site-nav__link {
  position: relative;
  padding-block: 8px;
  color: var(--color-on-night);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
}

/* Underline that grows from the left on hover and stays on the current page. */
.site-nav__link::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: var(--color-resin);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 8px 4px;
  border: 0;
  background: none;
  color: var(--color-on-night);
  font-weight: 600;
  cursor: pointer;
}

.menu-toggle__icon,
.menu-toggle__icon::before {
  display: block;
  width: 26px;
  height: 2px;
  background: currentColor;
  transition: transform 0.35s var(--ease-out);
}

.menu-toggle__icon {
  position: relative;
  transform: translateY(-4px);
}

.menu-toggle__icon::before {
  content: "";
  position: absolute;
  top: 8px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon::before {
  transform: translateY(-8px) rotate(-90deg);
}

@media (min-width: 1000px) {
  .site-nav,
  .site-header__cta {
    display: block;
  }

  .site-header__cta {
    display: inline-flex;
  }

  .menu-toggle {
    display: none;
  }
}

/* 2. Mobile menu --------------------------------------------------------- */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
  padding: calc(var(--header-height) + 32px) var(--page-gutter) 40px;
  overflow-y: auto;
}

.mobile-menu[hidden] {
  display: none;
}

.mobile-menu__list a {
  display: block;
  padding-block: 10px;
  color: var(--color-on-night);
  font-family: var(--font-display);
  font-size: clamp(2rem, 9vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  text-decoration: none;
}

.mobile-menu__list a[aria-current="page"] {
  color: var(--color-resin);
}

.mobile-menu__contact {
  display: grid;
  gap: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--color-on-night-line);
}

.mobile-menu__contact a {
  color: var(--color-on-night-muted);
  text-decoration: none;
}

/* 3. Hero (home) --------------------------------------------------------- */

.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 100vh;
  min-height: 100svh;
  padding-block: calc(var(--header-height) + 48px) clamp(40px, 6vw, 80px);
  overflow: hidden;
}

.hero__media,
.hero__fibres {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% 50%;
}

/* Darkens the photograph towards the text side and the bottom edge. */
.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 26, 34, 0.94) 0%, rgba(4, 26, 34, 0.72) 45%, rgba(4, 26, 34, 0.25) 100%),
    linear-gradient(0deg, rgba(4, 26, 34, 0.9) 0%, rgba(4, 26, 34, 0) 45%);
}

.hero__fibres {
  pointer-events: none;
  mix-blend-mode: screen;
}

.hero__inner {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.hero__title {
  max-width: 13ch;
  font-size: var(--text-h1);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.hero__foot {
  display: grid;
  gap: 28px;
  padding-top: clamp(24px, 3vw, 40px);
  border-top: 1px solid var(--color-on-night-line);
}

.hero__lead {
  max-width: 44ch;
  color: var(--color-on-night);
  font-size: var(--text-lg);
  line-height: 1.5;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero__badge {
  display: none;
  position: absolute;
  right: var(--page-gutter);
  top: calc(var(--header-height) + 6vh);
  width: clamp(140px, 13vw, 190px);
  aspect-ratio: 1;
  place-items: center;
}

.hero__badge-text {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  fill: var(--color-on-night);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.hero__badge img {
  width: 38%;
}

@media (min-width: 900px) {
  .hero__foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 48px;
  }

  .hero__badge {
    display: grid;
  }
}

/* 4. Page hero (inner pages) --------------------------------------------- */

.page-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: min(72vh, 680px);
  padding-block: calc(var(--header-height) + 64px) clamp(40px, 6vw, 72px);
  overflow: hidden;
}

.page-hero__media {
  position: absolute;
  inset: -8% 0;
}

.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(4, 26, 34, 0.96) 0%, rgba(4, 26, 34, 0.7) 55%, rgba(4, 26, 34, 0.55) 100%);
}

.page-hero__inner {
  position: relative;
  display: grid;
  gap: 24px;
}

.page-hero__title {
  max-width: 18ch;
  font-size: clamp(2.3rem, 1rem + 5vw, 5rem);
  letter-spacing: -0.04em;
  line-height: 1;
}

.page-hero__lead {
  max-width: 52ch;
  color: var(--color-on-night);
  font-size: var(--text-lg);
  line-height: 1.5;
}

/* 5. Marquee ------------------------------------------------------------- */

/* The track holds its content twice and slides left by half its width,
   which makes the loop seamless. */
.marquee {
  overflow: hidden;
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 36s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

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

.marquee--band {
  padding-block: clamp(18px, 2.4vw, 30px);
  background: var(--color-resin);
  color: var(--color-on-resin);
}

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: clamp(24px, 3vw, 48px);
  padding-right: clamp(24px, 3vw, 48px);
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1rem + 1.6vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

/* Small ring between words, echoing the logo mark. */
.marquee__item::after {
  content: "";
  width: 0.5em;
  height: 0.5em;
  border: 0.12em solid currentColor;
  border-radius: 50%;
}

.marquee--logos .marquee__track {
  gap: 20px;
  padding-right: 20px;
  animation-duration: 42s;
}

.marquee__logo {
  display: grid;
  place-items: center;
  width: clamp(170px, 18vw, 240px);
  height: clamp(100px, 10vw, 132px);
  padding: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: #ffffff;
}

.marquee__logo img {
  width: auto;
  max-width: 100%;
  max-height: 100%;
}

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

  .marquee {
    overflow-x: auto;
  }
}

/* 6. Stats --------------------------------------------------------------- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 28px;
}

.stats__item {
  display: flex;
  flex-direction: column-reverse;
  gap: 4px;
  padding-top: 20px;
  border-top: 1px solid var(--color-line);
}

.stats__item dd {
  color: var(--color-brand);
  font-family: var(--font-display);
  font-size: clamp(3rem, 2rem + 4vw, 5.5rem);
  font-weight: 600;
  letter-spacing: -0.05em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stats__item dt {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

/* 7. Reasons list -------------------------------------------------------- */

.why {
  display: grid;
  gap: 48px;
}

.why h2 {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.why__media {
  aspect-ratio: 4 / 3;
}

.reasons__item {
  position: relative;
  display: grid;
  gap: 6px;
  padding-block: 22px;
  border-top: 1px solid var(--color-line);
  transition: padding-left 0.4s var(--ease-out);
}

.reasons__item:last-child {
  border-bottom: 1px solid var(--color-line);
}

/* Accent bar that grows in when a row is hovered. */
.reasons__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 2px;
  background: var(--color-brand);
  transition: width 0.4s var(--ease-out);
}

.reasons__item:hover {
  padding-left: 40px;
}

.reasons__item:hover::before {
  width: 26px;
}

.reasons__item dt {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}

@media (min-width: 900px) {
  .why {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(48px, 7vw, 120px);
    align-items: start;
  }

  .why__media {
    position: sticky;
    top: calc(var(--header-height) + 32px);
    aspect-ratio: 4 / 5;
  }

  .reasons__item {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: baseline;
    gap: 32px;
  }
}

/* 8. Filter buttons ------------------------------------------------------ */

.filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(32px, 4vw, 56px);
}

.filter__button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: none;
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.25s, color 0.25s, border-color 0.25s;
}

.filter__button span {
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.filter__button:hover {
  border-color: var(--color-ink);
}

.filter__button[aria-pressed="true"] {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: #ffffff;
}

.filter__button[aria-pressed="true"] span {
  color: var(--color-resin);
}

[data-filter-item][hidden] {
  display: none;
}

/* 9. Call to action ------------------------------------------------------ */

.cta {
  position: relative;
  padding-block: clamp(96px, 13vw, 200px);
  overflow: hidden;
}

/* Large dashed ring, slowly rotated by modules/motion.js. */
.cta__ring {
  position: absolute;
  right: -12vw;
  top: 50%;
  width: clamp(360px, 52vw, 820px);
  aspect-ratio: 1;
  margin-top: calc(clamp(360px, 52vw, 820px) / -2);
  border: 2px dashed rgba(95, 212, 244, 0.28);
  border-radius: 50%;
  box-shadow: inset 0 0 0 clamp(40px, 6vw, 96px) rgba(95, 212, 244, 0.05);
}

.cta__inner {
  position: relative;
  display: grid;
  gap: clamp(32px, 4vw, 56px);
}

.cta__title {
  max-width: 14ch;
  font-size: clamp(2.4rem, 1rem + 5.6vw, 5.6rem);
  letter-spacing: -0.045em;
  line-height: 1;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
}

.cta__phone {
  color: var(--color-on-night);
  font-weight: 500;
}

/* 10. Footer ------------------------------------------------------------- */

.site-footer {
  padding-block: clamp(56px, 7vw, 96px) 32px;
  border-top: 1px solid var(--color-on-night-line);
  font-size: var(--text-sm);
}

.site-footer__top {
  display: grid;
  gap: 40px;
}

.site-footer__brand {
  display: grid;
  gap: 20px;
  align-content: start;
}

.site-footer__brand img {
  width: auto;
  height: 56px;
}

.site-footer__brand p {
  max-width: 34ch;
}

.site-footer__heading {
  margin-bottom: 16px;
  color: var(--color-on-night-muted);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0;
}

.site-footer__col ul {
  display: grid;
  gap: 10px;
}

.site-footer a {
  color: var(--color-on-night);
  text-decoration: none;
}

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

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 32px;
  margin-top: clamp(48px, 6vw, 80px);
  padding-top: 24px;
  border-top: 1px solid var(--color-on-night-line);
}

@media (min-width: 700px) {
  .site-footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .site-footer__top {
    grid-template-columns: minmax(0, 5fr) minmax(0, 2fr) minmax(0, 3fr) minmax(0, 4fr);
    gap: 48px;
  }
}

/* 11. Scroll progress ring ----------------------------------------------- */

.progress-ring {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 80;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-night);
  color: var(--color-on-night);
  box-shadow: var(--shadow-card);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s, transform 0.3s var(--ease-out);
}

.progress-ring[hidden] {
  display: none;
}

.progress-ring.is-visible {
  opacity: 1;
  transform: none;
}

.progress-ring svg {
  width: 100%;
  height: 100%;
}

.progress-ring circle {
  fill: none;
  stroke-width: 2.5;
  transform: rotate(-90deg);
  transform-origin: center;
}

.progress-ring__track {
  stroke: var(--color-on-night-line);
}

.progress-ring__value {
  stroke: var(--color-resin);
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
}