/* OTHEE Engineering subdomain — modular page */

.eng-page {
  --eng-accent: #3b82f6;
  --eng-accent-soft: rgba(59, 130, 246, 0.12);
  --eng-radius: 14px;
  --eng-shadow: 0 12px 40px rgba(0, 0, 0, 0.22);
}

.eng-topbar {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.1));
  font-size: 0.9rem;
  background: var(--bg, #0f1419);
}

.eng-topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.eng-topbar a {
  color: var(--accent, #60a5fa);
  text-decoration: none;
}

/* Hero */
.eng-hero {
  position: relative;
  min-height: 52vh;
  display: flex;
  align-items: flex-end;
  padding: 5rem 0 3.5rem;
  overflow: hidden;
}

.eng-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.03);
}

.eng-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.55) 0%, rgba(8, 12, 18, 0.92) 72%);
}

.eng-hero .container {
  position: relative;
  z-index: 1;
}

.eng-hero__badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 0.85rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(6px);
}

.eng-hero__title {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  margin: 0 0 0.75rem;
  max-width: 18ch;
}

.eng-hero__subtitle {
  max-width: 42rem;
  color: var(--muted, #9ca3af);
  font-size: 1.05rem;
  line-height: 1.6;
  margin: 0;
}

/* Nav */
.eng-nav {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(15, 20, 25, 0.92);
  border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.1));
  padding: 0.55rem 0;
  backdrop-filter: blur(10px);
}

.eng-nav .container {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.35rem 0.65rem;
  font-size: 0.8rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.eng-nav .container::-webkit-scrollbar {
  display: none;
}

.eng-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: color 0.15s, background 0.15s;
}

.eng-nav a:hover,
.eng-nav a.is-active {
  color: #fff;
  background: var(--eng-accent-soft);
}

/* Sections */
.eng-section {
  padding: 4rem 0;
}

.eng-section--alt {
  background: var(--surface, rgba(255, 255, 255, 0.03));
}

.eng-section__eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--eng-accent, #60a5fa);
  margin: 0 0 0.5rem;
  font-weight: 600;
}

.eng-section h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.eng-section__lead {
  max-width: 46rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0 0 1.5rem;
}

/* About */
.eng-about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.eng-about__media {
  border-radius: var(--eng-radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--eng-shadow);
}

.eng-about__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.eng-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin: 1.75rem 0;
}

.eng-stat {
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid var(--border, rgba(255, 255, 255, 0.12));
  background: var(--surface, rgba(255, 255, 255, 0.04));
  text-align: center;
}

.eng-stat strong {
  display: block;
  font-size: 1.35rem;
  color: var(--eng-accent, #60a5fa);
}

.eng-stat span {
  font-size: 0.78rem;
  color: var(--muted);
}

.eng-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.eng-pillar {
  padding: 1.15rem;
  border-radius: 12px;
  border: 1px solid var(--border, rgba(255, 255, 255, 0.1));
  background: var(--surface, rgba(255, 255, 255, 0.03));
}

.eng-pillar h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

.eng-pillar p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

/* Service modules */
.eng-module {
  padding: 4rem 0;
  scroll-margin-top: 4rem;
}

.eng-module:nth-child(even) {
  background: var(--surface, rgba(255, 255, 255, 0.025));
}

.eng-module__inner {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.eng-module__inner--split-left {
  grid-template-columns: 1.05fr 0.95fr;
}

.eng-module__inner--split-right {
  grid-template-columns: 0.95fr 1.05fr;
}

.eng-module__inner--split-right .eng-module__media {
  order: 2;
}

.eng-module__inner--split-right .eng-module__body {
  order: 1;
}

.eng-module__inner--banner {
  grid-template-columns: 1fr;
}

.eng-module__banner {
  position: relative;
  border-radius: var(--eng-radius);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
}

.eng-module__banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.eng-module__banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(8, 12, 18, 0.95) 0%, rgba(8, 12, 18, 0.2) 70%);
}

.eng-module__banner-content {
  position: relative;
  z-index: 1;
  padding: 2rem;
  max-width: 52rem;
}

.eng-module__media {
  border-radius: var(--eng-radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--eng-shadow);
}

.eng-module__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.eng-module__icon {
  font-size: 1.75rem;
  margin-bottom: 0.35rem;
}

.eng-module__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}

.eng-module__intro {
  color: var(--eng-accent, #60a5fa);
  font-weight: 500;
  margin: 0 0 0.75rem;
}

.eng-module__body {
  color: var(--muted);
  line-height: 1.65;
  margin: 0 0 1.25rem;
}

.eng-module__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.eng-module__list h4 {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.eng-module__list ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text, #e5e7eb);
}

.eng-module__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}

.eng-module__tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: var(--eng-accent-soft);
  color: var(--eng-accent, #93c5fd);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

/* Projects */
.eng-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.eng-filter {
  border: 1px solid var(--border, rgba(255, 255, 255, 0.15));
  background: transparent;
  color: var(--muted);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
}

.eng-filter:hover,
.eng-filter.is-active {
  background: var(--eng-accent-soft);
  color: #fff;
  border-color: rgba(59, 130, 246, 0.4);
}

.eng-projects {
  display: grid;
  gap: 0.85rem;
}

.eng-project {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem 1.5rem;
  padding: 1.15rem 1.25rem;
  border-radius: 12px;
  border: 1px solid var(--border, rgba(255, 255, 255, 0.1));
  background: var(--surface, rgba(255, 255, 255, 0.03));
}

.eng-project.is-hidden {
  display: none;
}

.eng-project__name {
  margin: 0;
  font-size: 1rem;
  grid-column: 1;
}

.eng-project__meta {
  grid-column: 2;
  text-align: right;
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

.eng-project__client {
  grid-column: 1;
  font-size: 0.85rem;
  color: var(--eng-accent, #93c5fd);
  margin: 0;
}

.eng-project__scope {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
}

.eng-project__cat {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  margin-left: 0.5rem;
  vertical-align: middle;
}

/* Equipment */
.eng-equipment {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.eng-equip-card {
  padding: 1.25rem;
  border-radius: 12px;
  border: 1px solid var(--border, rgba(255, 255, 255, 0.12));
  background: var(--surface, rgba(255, 255, 255, 0.04));
}

.eng-equip-card__icon {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

.eng-equip-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.eng-equip-card__qty {
  font-size: 0.8rem;
  color: var(--eng-accent, #93c5fd);
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.eng-equip-card p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
}

/* Gallery */
.eng-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 180px;
  gap: 0.75rem;
}

.eng-gallery__item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  margin: 0;
  cursor: pointer;
  border: none;
  padding: 0;
  background: #111;
}

.eng-gallery__item:nth-child(1) {
  grid-column: span 2;
  grid-row: span 2;
}

.eng-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.eng-gallery__item:hover img {
  transform: scale(1.04);
}

.eng-gallery__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 2rem 0.85rem 0.85rem;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.85), transparent);
  font-size: 0.78rem;
  color: #fff;
  text-align: left;
}

.eng-lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

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

.eng-lightbox img {
  max-width: min(1100px, 100%);
  max-height: 85vh;
  border-radius: 8px;
  object-fit: contain;
}

.eng-lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
}

.eng-cta {
  text-align: center;
  padding: 4rem 0 5rem;
  background: linear-gradient(180deg, transparent, var(--eng-accent-soft));
}

.eng-cta .btn {
  margin: 0 0.35rem 0.5rem;
}

@media (max-width: 960px) {
  .eng-about,
  .eng-module__inner--split-left,
  .eng-module__inner--split-right {
    grid-template-columns: 1fr;
  }

  .eng-module__inner--split-right .eng-module__media,
  .eng-module__inner--split-right .eng-module__body {
    order: unset;
  }

  .eng-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .eng-pillars {
    grid-template-columns: 1fr;
  }

  .eng-module__grid {
    grid-template-columns: 1fr;
  }

  .eng-gallery {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 140px;
  }

  .eng-gallery__item:nth-child(1) {
    grid-column: span 2;
    grid-row: span 1;
  }

  .eng-project {
    grid-template-columns: 1fr;
  }

  .eng-project__meta {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .eng-gallery {
    grid-template-columns: 1fr;
  }

  .eng-gallery__item:nth-child(1) {
    grid-column: span 1;
  }
}