/* ==========================================================================
   components.css — nav, footer, buttons, cards, hero, stats, forms, Loop Mark
   ========================================================================== */

/* ---------- Site header / nav ---------- */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  height: var(--header-h);
  z-index: 100;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-bottom: 1px solid rgba(26, 53, 94, 0.08);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.brand__logo {
  height: 40px;
  width: auto;
}

.brand__division {
  display: block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-200);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-steel);
  border-left: 1.5px solid rgba(26, 53, 94, 0.18);
  padding-left: var(--space-sm);
}

.footer-brand__logo {
  height: 40px;
  width: auto;
  margin-bottom: var(--space-sm);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__list {
  display: flex;
  gap: var(--space-md);
  font-size: var(--fs-300);
  font-weight: 500;
}

.nav__list a {
  position: relative;
  padding-block: var(--space-3xs);
}

.nav__list a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--color-signal);
  transition: right var(--dur-med) var(--ease-out);
}

.nav__list a:hover::after,
.nav__list a[aria-current='page']::after {
  right: 0;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2xs);
}

.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
  content: '';
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  position: relative;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
}
.nav__toggle span::before { position: absolute; top: -7px; }
.nav__toggle span::after { position: absolute; top: 7px; }

.nav__cta {
  display: inline-flex;
}

@media (max-width: 860px) {
  .nav__list { display: none; }
  .nav__cta { display: none; }
  .nav__toggle { display: block; }

  .nav.is-open .nav__list {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    bottom: 0;
    overflow-y: auto;
    background: var(--color-paper);
    padding: var(--space-lg) var(--content-pad);
    gap: var(--space-md);
    border-bottom: 1px solid rgba(26,53,94,0.08);
  }
  .nav.is-open .nav__toggle span { transform: rotate(45deg); }
  .nav.is-open .nav__toggle span::before { top: 0; transform: rotate(0deg); opacity: 0; }
  .nav.is-open .nav__toggle span::after { top: 0; transform: rotate(-90deg); }
}

/* ---------- Nav dropdowns ("Company", "Sustainability", "Investors") ---------- */
.nav__item--dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  background: none;
  border: none;
  font: inherit;
  font-size: var(--fs-300);
  font-weight: 500;
  color: inherit;
  padding-block: var(--space-3xs);
  cursor: pointer;
}

.nav__dropdown-toggle::after {
  content: '';
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--dur-fast) var(--ease-out);
}

.nav__item--dropdown.is-open .nav__dropdown-toggle::after {
  transform: rotate(-135deg) translateY(2px);
}

.nav__dropdown {
  display: none;
  min-width: 15rem;
}

@media (min-width: 861px) {
  .nav__dropdown {
    position: absolute;
    top: calc(100% + var(--space-sm));
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-white);
    border-radius: var(--radius-sm);
    box-shadow: 0 20px 40px -16px rgba(26,53,94,0.28);
    padding: var(--space-2xs);
    flex-direction: column;
    z-index: 10;
  }
  .nav__item--dropdown.is-open .nav__dropdown {
    display: flex;
  }
  .nav__dropdown a {
    display: block;
    padding: var(--space-2xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--fs-300);
    white-space: nowrap;
  }
  .nav__dropdown a:hover {
    background: var(--color-chalk);
  }
  .nav__dropdown a::after { display: none; }
}

@media (max-width: 860px) {
  .nav__dropdown-toggle {
    width: 100%;
    justify-content: space-between;
    font-size: var(--fs-300);
  }
  .nav__dropdown {
    flex-direction: column;
    padding-left: var(--space-md);
    gap: var(--space-2xs);
    border-left: 2px solid rgba(26,53,94,0.12);
    margin-top: var(--space-2xs);
  }
  .nav__item--dropdown.is-open .nav__dropdown {
    display: flex;
  }
  .nav__dropdown a { font-size: var(--fs-300); color: var(--color-steel); }
}

.nav__dropdown a[target="_blank"]::after {
  content: ' ↗';
  font-size: 0.8em;
  opacity: 0.6;
}

/* ---------- Content-page fact lists & process steps (governance/investor/tour pages) ---------- */
.fact-list {
  display: grid;
  grid-template-columns: 12rem 1fr;
  gap: var(--space-sm) var(--space-md);
  font-size: var(--fs-300);
}

.fact-list dt {
  font-weight: 600;
  color: var(--color-steel);
}

.fact-list dd {
  margin: 0;
}

@media (max-width: 700px) {
  .fact-list { grid-template-columns: 1fr; gap: var(--space-3xs) 0; }
  .fact-list dt { margin-top: var(--space-sm); }
}

.step-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: var(--space-sm);
}

.step-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-white);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(26,53,94,0.08);
  font-size: var(--fs-300);
  font-weight: 500;
}

.step-list li span.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6em;
  height: 1.6em;
  border-radius: 50%;
  background: var(--color-signal);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: var(--fs-200);
  flex-shrink: 0;
}

.external-note {
  font-size: var(--fs-200);
  color: var(--color-steel);
  border-left: 3px solid var(--color-cord);
  padding-left: var(--space-sm);
  margin-top: var(--space-md);
}

/* ---------- Report tiles (Annual Reports, etc.) ----------
   Solid-color cards with an inline SVG icon — no image files, no PDF
   thumbnails, so this stays just as fast as the plain-list version while
   looking like a real document card. Grouped by decade above each grid. */
.report-group {
  margin-bottom: var(--space-xl);
}

.report-group__label {
  font-family: var(--font-display);
  font-size: var(--fs-300);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-cord);
  margin-bottom: var(--space-md);
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr));
  gap: var(--space-sm);
}

.report-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-sm);
  color: var(--color-signal);
  border-radius: var(--radius-md);
  text-align: center;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}

.report-tile:hover {
  background: var(--color-chalk);
  transform: translateY(-3px);
}

.report-tile:focus-visible {
  outline: 3px solid var(--color-signal);
  outline-offset: 3px;
}

.report-tile__icon {
  width: 56px;
  height: 56px;
  stroke-width: 1.5;
}

.report-tile__label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--fs-300);
  color: var(--color-ink);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-300);
  letter-spacing: 0.02em;
  padding: 0.85em 1.5em;
  border-radius: 999px;
  border: 1.5px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
.btn:hover { transform: translateY(-2px); }

.btn--signal {
  background: var(--color-signal);
  color: var(--color-white);
}
.btn--signal:hover { background: var(--color-signal-dim); }

.btn--ghost-ink {
  border-color: currentColor;
  color: var(--color-ink);
}
.btn--ghost-ink:hover { background: var(--color-ink); color: var(--color-paper); }

.btn--ghost-paper {
  border-color: rgba(255,255,255,0.5);
  color: var(--color-paper);
}
.btn--ghost-paper:hover { background: var(--color-paper); color: var(--color-ink); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-top: var(--header-h);
  background: var(--color-ink);
  color: var(--color-paper);
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__media video,
.hero__media .hero__poster {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,53,94,0.15) 0%, rgba(26,53,94,0.55) 55%, rgba(26,53,94,0.92) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-block: var(--space-2xl) var(--space-xl);
}

.hero__kicker {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-display);
  font-size: var(--fs-300);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-signal);
  margin-bottom: var(--space-md);
}

.hero h1 {
  max-width: 22ch;
  margin-bottom: var(--space-md);
}

.hero__lead {
  max-width: 46ch;
  font-size: var(--fs-500);
  color: rgba(255,255,255,0.82);
  margin-bottom: var(--space-lg);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.hero__scrollcue {
  position: absolute;
  right: var(--content-pad);
  bottom: var(--space-lg);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--fs-200);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  writing-mode: vertical-rl;
}

@media (max-width: 700px) {
  .hero__scrollcue { display: none; }
}

/* ---------- Loop Mark: signature animated SVG motif ---------- */
.loop-mark {
  --loop-size: 42px;
  width: var(--loop-size);
  height: var(--loop-size);
  flex-shrink: 0;
}

.loop-mark__cylinder {
  transform-origin: 50% 50%;
  animation: loop-spin 6s linear infinite;
}

.loop-mark__feeder {
  animation: loop-feed 2.4s ease-in-out infinite;
  transform-origin: 50% 50%;
}

@keyframes loop-spin {
  to { transform: rotate(360deg); }
}
@keyframes loop-feed {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(2px); }
}

@media (prefers-reduced-motion: reduce) {
  .loop-mark__cylinder, .loop-mark__feeder { animation: none; }
}

.loop-mark--sm { --loop-size: 22px; }

/* ---------- Stat strip ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,0.14);
  border-bottom: 1px solid rgba(255,255,255,0.14);
}

.stat {
  padding: var(--space-lg) var(--space-md);
  border-left: 1px solid rgba(255,255,255,0.14);
}
.stat:first-child { border-left: none; }

.stat__value {
  font-family: var(--font-display);
  font-size: var(--fs-800);
  color: var(--color-signal);
  display: flex;
  align-items: baseline;
  gap: 0.15em;
}

.stat__label {
  margin-top: var(--space-2xs);
  font-size: var(--fs-300);
  color: rgba(255,255,255,0.72);
}

.stat__note {
  display: block;
  font-size: var(--fs-200);
  color: rgba(255,255,255,0.45);
  margin-top: var(--space-3xs);
}

@media (max-width: 900px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .stat { border-bottom: 1px solid rgba(255,255,255,0.14); }
}
@media (max-width: 560px) {
  .stat-strip { grid-template-columns: 1fr; }
  .stat { border-left: none !important; }
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(26,53,94,0.06);
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -20px rgba(26,53,94,0.28);
}

.card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-chalk);
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.card:hover .card__media img { transform: scale(1.05); }

.card__body {
  padding: var(--space-md);
}

.card__tag {
  font-size: var(--fs-200);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-cord);
  font-weight: 600;
  margin-bottom: var(--space-2xs);
}

.card__title {
  font-size: var(--fs-600);
  margin-bottom: var(--space-2xs);
}

.card__desc {
  font-size: var(--fs-300);
  color: var(--color-steel);
  margin-bottom: var(--space-sm);
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
}

.chip {
  font-size: var(--fs-200);
  padding: 0.3em 0.7em;
  border-radius: 999px;
  background: var(--color-chalk);
  color: var(--color-ink-soft);
}

/* ---------- Impact / sustainability grid ---------- */
.impact-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid rgba(26,53,94,0.06);
}

.impact-item__icon {
  width: 44px; height: 44px;
}

/* ---------- Badges (certifications) ---------- */
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  align-items: center;
}

.badge {
  height: 92px;
  width: auto;
  max-width: 170px;
  object-fit: contain;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(26,53,94,0.12);
  padding: var(--space-sm);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.72);
  padding-block: var(--space-2xl) var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

.footer-grid h4 {
  font-size: var(--fs-300);
  color: var(--color-paper);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer-grid ul { display: flex; flex-direction: column; gap: var(--space-2xs); font-size: var(--fs-300); }
.footer-grid a:hover { color: var(--color-signal); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: var(--fs-200);
}

.social-row { display: flex; gap: var(--space-sm); }

/* ---------- Forms (placeholder contact form) ---------- */
.form {
  display: grid;
  gap: var(--space-md);
  max-width: 40rem;
}

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

.form-row label {
  font-size: var(--fs-300);
  font-weight: 600;
}

.form-row input,
.form-row textarea {
  padding: 0.85em 1em;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(26,53,94,0.16);
  background: var(--color-white);
}

.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--color-cord);
}

.form-note {
  font-size: var(--fs-200);
  color: var(--color-steel);
  border-left: 3px solid var(--color-signal);
  padding-left: var(--space-sm);
}

/* ---------- Page hero (interior pages, non-video) ---------- */
.page-hero {
  padding-top: calc(var(--header-h) + var(--space-2xl));
  padding-bottom: var(--space-xl);
  background: var(--color-chalk);
}

.page-hero .eyebrow { color: var(--color-cord); }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mb-0 { margin-bottom: 0; }