/* ==========================================================================
   Helical Foundations — Local preview stylesheet
   BEM blocks: hero, about, services, gallery, contact, site-header, site-footer
   Mirrors Bricks global class CSS (see bricks-build/bricks-classes.css)
   ========================================================================== */

:root {
  --color-charcoal: #14171b;
  --color-dark-gray: #252a30;
  --color-mid-gray: #3d444c;
  --color-muted: #6b7280;
  --color-light: #f3f4f6;
  --color-white: #ffffff;
  --color-accent: #e85d04;
  --color-accent-dark: #c44f03;
  --color-overlay: rgba(20, 23, 27, 0.72);

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;

  --space-xs: 0.5rem;
  --space-s: 1rem;
  --space-m: 1.5rem;
  --space-l: 2.5rem;
  --space-xl: 4rem;
  --space-xxl: 6rem;

  --container: min(72rem, calc(100% - 2.5rem));
  --container-wide: min(84rem, calc(100% - 2.5rem));
  --radius: 0.25rem;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.12);
  --transition: 0.3s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--color-dark-gray);
  background: var(--color-white);
}

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

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

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  padding: var(--space-s) var(--space-m);
  background: var(--color-accent);
  color: var(--color-white);
}

.skip-link:focus {
  left: var(--space-s);
}

/* --------------------------------------------------------------------------
   Site header
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  padding-block: var(--space-s);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
  background: rgba(20, 23, 27, 0.96);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.site-header__inner {
  width: var(--container-wide);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-m);
}

.site-header__logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
}

.site-header__nav {
  display: none;
  align-items: center;
  gap: var(--space-l);
}

.site-header__link {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
  transition: color var(--transition);
}

.site-header__link:hover,
.site-header__link:focus-visible {
  color: var(--color-white);
}

.site-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-white);
  background: var(--color-accent);
  border: 2px solid var(--color-accent);
  transition: background var(--transition), border-color var(--transition);
}

.site-header__cta:hover,
.site-header__cta:focus-visible {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.site-header__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
}

.site-header__toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
}

@media (min-width: 992px) {
  .site-header__nav {
    display: flex;
  }

  .site-header__toggle {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Buttons (shared)
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn--primary {
  color: var(--color-white);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.btn--secondary {
  color: var(--color-white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.65);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

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

.btn--outline:hover,
.btn--outline:focus-visible {
  color: var(--color-white);
  background: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Section utilities
   -------------------------------------------------------------------------- */

.section-label {
  display: inline-block;
  margin-bottom: var(--space-s);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section-title {
  margin: 0 0 var(--space-m);
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-charcoal);
}

.section-intro {
  margin: 0;
  max-width: 38rem;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100svh;
  color: var(--color-white);
  overflow: hidden;
}

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

.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  animation: hero-fade 24s infinite;
}

.hero__slide:nth-child(1) { animation-delay: 0s; }
.hero__slide:nth-child(2) { animation-delay: 6s; }
.hero__slide:nth-child(3) { animation-delay: 12s; }
.hero__slide:nth-child(4) { animation-delay: 18s; }

@keyframes hero-fade {
  0%, 20% { opacity: 1; }
  25%, 100% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__slide {
    animation: none;
    opacity: 0;
  }

  .hero__slide:first-child {
    opacity: 1;
  }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    115deg,
    rgba(20, 23, 27, 0.88) 0%,
    rgba(20, 23, 27, 0.55) 55%,
    rgba(20, 23, 27, 0.35) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  width: var(--container-wide);
  margin-inline: auto;
  padding-block: calc(var(--space-xxl) + 4rem) var(--space-xxl);
}

.hero__eyebrow {
  display: inline-block;
  margin-bottom: var(--space-m);
  padding: 0.4rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-white);
  background: rgba(232, 93, 4, 0.9);
}

.hero__title {
  margin: 0 0 var(--space-m);
  max-width: 14ch;
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero__subtitle {
  margin: 0 0 var(--space-s);
  max-width: 32rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.92);
}

.hero__text {
  margin: 0 0 var(--space-l);
  max-width: 36rem;
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
}

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

.hero__scroll {
  position: absolute;
  bottom: var(--space-l);
  left: 50%;
  z-index: 2;
  transform: translateX(-50%);
  width: 1px;
  height: 3.5rem;
  background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.6));
}

/* --------------------------------------------------------------------------
   About
   -------------------------------------------------------------------------- */

.about {
  padding-block: var(--space-xxl);
  background: var(--color-white);
}

.about__inner {
  width: var(--container);
  margin-inline: auto;
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.about__image-wrap {
  position: relative;
}

.about__image {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.about__image-accent {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  width: 45%;
  padding: var(--space-m);
  background: var(--color-charcoal);
  color: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.about__stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--color-accent);
}

.about__stat-label {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.about__content {
  max-width: 36rem;
}

.about__values {
  display: grid;
  gap: var(--space-m);
  margin-top: var(--space-l);
  padding: 0;
  list-style: none;
}

.about__value {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-s);
  align-items: start;
}

.about__value-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1.1rem;
  color: var(--color-accent);
  background: rgba(232, 93, 4, 0.1);
  border-radius: 50%;
}

.about__value-title {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.about__value-text {
  margin: 0;
  font-size: 1rem;
  color: var(--color-muted);
}

@media (min-width: 992px) {
  .about__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
  }
}

/* Scroll reveal (preview — Bricks Interactions in production) */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   Services
   -------------------------------------------------------------------------- */

.services {
  padding-block: var(--space-xxl);
  background: var(--color-light);
}

.services__inner {
  width: var(--container);
  margin-inline: auto;
}

.services__header {
  max-width: 40rem;
  margin-bottom: var(--space-xl);
}

.services__grid {
  display: grid;
  gap: var(--space-m);
  grid-template-columns: 1fr;
}

.services__card {
  display: flex;
  flex-direction: column;
  padding: var(--space-l);
  background: var(--color-white);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.services__card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 93, 4, 0.25);
  box-shadow: var(--shadow-card);
}

.services__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--space-m);
  font-size: 1.35rem;
  color: var(--color-accent);
  background: rgba(232, 93, 4, 0.1);
  border-radius: var(--radius);
}

.services__card-title {
  margin: 0 0 var(--space-s);
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-charcoal);
}

.services__card-text {
  flex: 1;
  margin: 0 0 var(--space-m);
  font-size: 1rem;
  color: var(--color-muted);
}

.services__card-link {
  align-self: flex-start;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition);
}

.services__card-link:hover,
.services__card-link:focus-visible {
  border-color: var(--color-accent);
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Gallery
   -------------------------------------------------------------------------- */

.gallery {
  padding-block: var(--space-xxl);
  background: var(--color-charcoal);
  color: var(--color-white);
}

.gallery__inner {
  width: var(--container-wide);
  margin-inline: auto;
}

.gallery__header {
  max-width: 40rem;
  margin-bottom: var(--space-xl);
}

.gallery .section-title,
.gallery .section-intro {
  color: var(--color-white);
}

.gallery .section-intro {
  color: rgba(255, 255, 255, 0.72);
}

.gallery__grid {
  columns: 1;
  column-gap: var(--space-m);
}

.gallery__item {
  break-inside: avoid;
  margin-bottom: var(--space-m);
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
}

.gallery__image {
  width: 100%;
  display: block;
  transition: transform 0.5s ease;
}

.gallery__item:hover .gallery__image,
.gallery__item:focus-within .gallery__image {
  transform: scale(1.04);
}

.gallery__caption {
  padding: var(--space-s) var(--space-m);
  font-size: 0.9rem;
  background: var(--color-dark-gray);
}

@media (min-width: 768px) {
  .gallery__grid {
    columns: 2;
  }
}

@media (min-width: 1200px) {
  .gallery__grid {
    columns: 3;
  }
}

/* Lightbox (preview only — Bricks native lightbox in production) */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-m);
  background: rgba(0, 0, 0, 0.92);
}

.lightbox.is-open {
  display: flex;
}

.lightbox__image {
  max-width: min(90vw, 72rem);
  max-height: 90vh;
  object-fit: contain;
}

.lightbox__close {
  position: absolute;
  top: var(--space-m);
  right: var(--space-m);
  padding: var(--space-s);
  font-size: 2rem;
  line-height: 1;
  color: var(--color-white);
  background: none;
  border: none;
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */

.contact {
  padding-block: var(--space-xxl);
  background: var(--color-white);
}

.contact__inner {
  width: var(--container);
  margin-inline: auto;
}

.contact__cta-band {
  margin-bottom: var(--space-xl);
  padding: var(--space-xl);
  text-align: center;
  background: linear-gradient(135deg, var(--color-charcoal), var(--color-dark-gray));
  border-radius: var(--radius);
  color: var(--color-white);
}

.contact__cta-title {
  margin: 0 0 var(--space-s);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.contact__cta-text {
  margin: 0 auto var(--space-m);
  max-width: 36rem;
  color: rgba(255, 255, 255, 0.8);
}

.contact__layout {
  display: grid;
  gap: var(--space-xl);
}

.contact__form-wrap {
  padding: var(--space-l);
  background: var(--color-light);
  border-radius: var(--radius);
}

.contact__form {
  display: grid;
  gap: var(--space-m);
}

.contact__field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.contact__field input,
.contact__field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font: inherit;
  color: var(--color-charcoal);
  background: var(--color-white);
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.contact__field input:focus,
.contact__field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.contact__field textarea {
  min-height: 9rem;
  resize: vertical;
}

.contact__details {
  display: grid;
  gap: var(--space-l);
}

.contact__detail-block h3 {
  margin: 0 0 var(--space-s);
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-charcoal);
}

.contact__detail-block p,
.contact__detail-block address {
  margin: 0;
  font-style: normal;
  color: var(--color-muted);
}

.contact__detail-block a {
  color: var(--color-accent);
  font-weight: 600;
}

.contact__map {
  margin-top: var(--space-l);
  aspect-ratio: 16 / 9;
  background: var(--color-mid-gray);
  border-radius: var(--radius);
  overflow: hidden;
}

.contact__map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

@media (min-width: 992px) {
  .contact__layout {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}

/* --------------------------------------------------------------------------
   Site footer
   -------------------------------------------------------------------------- */

.site-footer {
  padding-block: var(--space-l);
  background: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.site-footer__inner {
  width: var(--container);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-s);
}

.site-footer__brand {
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-white);
}