/* ======================================================================
   01. Navigation Overlay
   ====================================================================== */
/* Demo body to test overlay behavior.
       In production, this can be removed and the IDs below should be attached
       to the actual integrated sections: #hero, #news, #works, #about, #equipments, #services-rates */
.demo-page {
  width: var(--shell-width);
  margin: 0 auto;
  padding: 1.75rem 0 4rem;
  display: grid;
  gap: 1.6rem;
}

.demo-header {
  display: grid;
  justify-items: center;
  gap: var(--header-gap);
}

.demo-header h1 {
  margin: 0;
  font-size: var(--title-size);
  line-height: 1;
  letter-spacing: -0.04em;
  font-weight: 700;
}

.demo-rule {
  width: 100%;
  height: 1px;
  background: var(--line);
}

.demo-section {
  min-height: min(52svh, 30rem);
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.26) 0%, rgba(255, 255, 255, 0.08) 100%);
  box-shadow: var(--shadow);
  color: var(--muted);
  border: 1px solid var(--line);
}

.demo-section__label {
  font-size: var(--sp-type-display-demo);
  letter-spacing: -0.03em;
  color: var(--text);
}

/* === Fixed trigger === */
.nav-trigger {
  position: fixed;
  top: 1.4rem;
  right: 1.4rem;
  z-index: 70;
  appearance: none;
  border: 1px solid var(--line-strong);
  background: rgba(248, 248, 250, 0.92);
  color: var(--text);
  min-width: 3.5rem;
  height: 3.5rem;
  padding: 0 1rem;
  box-shadow: var(--shadow);
  display: inline-grid;
  grid-auto-flow: column;
  gap: 0.8rem;
  align-items: center;
  backdrop-filter: saturate(1.04);
  -webkit-backdrop-filter: saturate(1.04);
  transition: opacity 280ms ease, visibility 280ms ease, transform 360ms cubic-bezier(.22, .61, .36, 1);
}

.nav-trigger.is-overlapping-sec-head {
  transform: translateX(calc(100% + 1.4rem));
}

.nav-trigger__icon {
  width: 1.15rem;
  height: 0.78rem;
  position: relative;
  display: block;
}

.nav-trigger__icon::before,
.nav-trigger__icon::after,
.nav-trigger__icon span {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: currentColor;
  transition: transform 220ms ease, opacity 220ms ease, top 220ms ease;
}

.nav-trigger__icon::before {
  top: 0;
}

.nav-trigger__icon span {
  top: 50%;
  transform: translateY(-50%);
}

.nav-trigger__icon::after {
  bottom: 0;
}

.nav-trigger[aria-expanded="true"] .nav-trigger__icon::before {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}

.nav-trigger[aria-expanded="true"] .nav-trigger__icon span {
  opacity: 0;
}

.nav-trigger[aria-expanded="true"] .nav-trigger__icon::after {
  bottom: auto;
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

.nav-trigger__label {
  font-size: var(--sp-type-control);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-trigger:focus-visible,
.nav-close:focus-visible,
.nav-item:focus-visible,
.nav-cta:focus-visible {
  outline: 2px solid var(--active);
  outline-offset: 2px;
}

/* === Overlay shell === */
.nav-shell {
  position: fixed;
  inset: 0;
  z-index: 65;
  pointer-events: none;
}

/* Desktop: no blocking backdrop, background remains interactive. */
.nav-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background: transparent;
  opacity: 0;
  transition: opacity 220ms ease;
  pointer-events: none;
}

.nav-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(var(--menu-width), calc(100vw - 1rem));
  height: 100svh;
  background: rgba(248, 248, 250, 0.985);
  border-left: 1px solid var(--line);
  box-shadow: none;
  transform: translateX(calc(100% + 3rem));
  transition: transform 260ms cubic-bezier(.2, .7, .2, 1);
  display: grid;
  grid-template-rows: auto 1fr auto;
  pointer-events: auto;
  overflow: hidden;
}

.nav-shell.is-open {
  pointer-events: none;
}

.nav-shell.is-open .nav-panel {
  transform: translateX(0);
  box-shadow: -1px 0 0 rgba(20, 24, 31, 0.03);
}

.nav-panel__header {
  padding: 1.4rem 1.4rem 1rem;
  display: grid;
  gap: 0.95rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.18));
}

.nav-panel__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-panel__eyebrow {
  margin: 0;
  font-size: var(--sp-type-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav-close {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface-2);
  min-width: var(--tap);
  height: var(--tap);
  display: inline-grid;
  place-items: center;
  box-shadow: var(--shadow);
}

.nav-panel__title {
  margin: 2rem 0 0;
  max-width: none;
  width: 100%;
}

.nav-panel__logo {
  display: block;
  width: min(360px, 100%);
  height: auto;
}

.nav-panel__lede {
  margin: 0;
  color: var(--muted);
  font-size: var(--sp-type-body);
  line-height: 1.55;
  max-width: 34ch;
}

.nav-panel__body {
  min-height: 0;
  overflow: auto;
  padding: 1rem 1.15rem 1.15rem;
  display: grid;
  gap: 1.2rem;
  align-content: start;
}

.single-page-site :is(h1, h2, h3, .section-label, .kicker, .hero-kicker, .hero-card__meta, .nav-trigger__label, .nav-panel__eyebrow, .nav-panel__title, .nav-group__label, .nav-item__label, .news-list-title, .about-kicker, .equipment-kicker, .footer-note-label) {
  font-family: var(--sp-font-display);
}

.nav-group {
  display: grid;
  gap: 0.7rem;
}

.nav-group__label {
  margin: 0;
  font-size: var(--sp-type-label-xs);
  color: var(--muted-2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
}

.nav-item {
  display: grid;
  grid-template-columns: 2.7rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.9rem;
  min-height: 4rem;
  padding: 0.8rem 0;
  text-decoration: none;
  color: inherit;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  background: transparent;
  box-shadow: none;
  transition: color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.nav-item:hover {
  background: transparent;
  border-color: var(--line-strong);
  transform: translateX(3px);
}

.nav-item__thumb {
  width: 2.7rem;
  height: 2.7rem;
  position: relative;
  display: grid;
  place-items: center;
  opacity: 0.85;
  background: none;
}

.nav-item__thumb::before {
  content: none;
}

.nav-item__thumb::after {
  content: none;
}

.nav-item__thumb i {
  position: relative;
  z-index: 1;
  font-size: 0.92rem;
  color: color-mix(in srgb, var(--text) 74%, var(--muted) 26%);
}

.nav-item__text {
  min-width: 0;
  display: grid;
  gap: 0.18rem;
}

.nav-item__label,
.nav-item__sub,
.nav-item__hint {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-item__label {
  font-size: var(--sp-type-body-lg);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 560;
}

.nav-item__sub {
  font-size: var(--sp-type-label-xl);
  color: var(--muted);
  line-height: 1.25;
}

.nav-item__hint {
  font-size: var(--sp-type-label);
  color: var(--muted-2);
  letter-spacing: 0.08em;
}

.nav-panel__footer {
  display: grid;
  gap: 0.6rem;
  padding: 0.9rem 1.15rem 1.2rem;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.52));
}

.nav-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav-socials a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  min-width: 2.5rem;
  min-height: 2.5rem;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.45);
  color: inherit;
  text-decoration: none;
  line-height: 0;
  box-shadow: var(--shadow);
}

.nav-socials a:hover,
.nav-socials a:focus-visible {
  background: rgba(255, 255, 255, 0.82);
  border-color: var(--line-strong);
}

.nav-socials__icon {
  width: 1rem;
  height: 1rem;
  object-fit: contain;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.35rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line-strong);
  background: var(--text);
  color: #f8f8fa;
  text-decoration: none;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow);
}

.nav-panel__note {
  margin: 0;
  font-size: var(--sp-type-label-xl);
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 48rem) {
  .demo-page {
    width: min(100%, calc(100vw - 2rem));
    padding: 1.1rem 0 2rem;
  }

  .nav-trigger {
    top: 0.85rem;
    right: 0.85rem;
    min-width: 3.25rem;
    height: 3.25rem;
    padding: 0 0.85rem;
  }

  .nav-trigger__label {
    display: none;
  }

  body.has-modal-open .nav-trigger {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-0.4rem);
  }

  .nav-shell.is-open {
    pointer-events: auto;
  }

  .nav-shell.is-open::before {
    background: rgba(0, 0, 0, 0.14);
    opacity: 1;
    pointer-events: auto;
  }

  /* Mobile: full-screen dialog. */
  .nav-panel {
    width: 100vw;
    max-width: none;
    border-left: 0;
  }

  .nav-panel__header {
    padding: 1rem 1rem 0.95rem;
  }

  .nav-panel__body,
  .nav-panel__footer {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .nav-item {
    grid-template-columns: 2.4rem minmax(0, 1fr) auto;
    min-height: 3.8rem;
    padding: 0.72rem 0.75rem;
  }

}