/* SUB-PAGES DESIGN SYSTEM */

/* 1. Page-Level Header Transparency & Padding */
.home-page main,
.about-page main,
.service-page main {
  padding-top: 0;
}

.home-page .navbar:not(.scrolled),
.about-page .navbar:not(.scrolled),
.service-page .navbar:not(.scrolled) {
  background: transparent;
  box-shadow: none;
}

.home-page .navbar:not(.scrolled) .nav-link,
.about-page .navbar:not(.scrolled) .nav-link,
.service-page .navbar:not(.scrolled) .nav-link {
  color: var(--white);
}

@media (max-width: 1024px) {
  .home-page .navbar:not(.scrolled),
  .about-page .navbar:not(.scrolled),
  .service-page .navbar:not(.scrolled) {
    background: transparent;
    box-shadow: none;
  }
}

/* 2. Hero Systems */

/* Image-only service hero with top gradient overlay */
.service-hero {
  position: relative;
  height: 60vh;
  width: 100%;
  background-size: cover;
  background-repeat: no-repeat;
}

.right-bottom-hero {
  background-position: right bottom;
}

.service-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.5) 0%, transparent 20%);
  z-index: 1;
}

/* About specific hero */
.about-hero {
  position: relative;
  height: 70vh;
  width: 100%;
  background-image: 
    linear-gradient(to bottom, rgba(0,0,0,0.4) 0%, transparent 20%),
    url('./assets/hero_image_1.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

@media (max-width: 768px) {
  .service-hero { height: 40vh; }
  .about-hero { height: 50vh; }
}

/* 3. Introduction Sections */

/* White background with 50px grid pattern and gradient titles */
.grid-intro {
  background-color: var(--white);
  background-image: 
    linear-gradient(to right, rgba(0,0,0,0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  padding: var(--space-24) 0;
  border-bottom: 1px solid var(--border);
}

.grid-intro h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-8);
  background: linear-gradient(to right, var(--red), var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.grid-intro p {
  font-size: var(--text-xl);
  line-height: 1.6;
  color: var(--text);
  max-width: 1000px;
  margin-inline: auto;
}

/* 4. Component Card Systems */

/* Values Cards (About Page) */
.values-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-8);
}

.value-card {
  background: var(--white);
  padding: var(--space-10) var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--dur-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  text-align: left;
}

.value-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-light);
}

.value-icon {
  width: 56px;
  height: 56px;
  background: var(--accent-blue);
  color: var(--blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.value-title {
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-dark);
}

/* Fleet Cards (Technical Layout) */
.fleet-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-6);
}

.fleet-card {
  background: var(--bg-section);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--dur-base) var(--ease-out);
}

.fleet-card:hover {
  background: var(--white);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.fleet-title {
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--blue-dark);
  text-transform: uppercase;
  border-bottom: 2px solid var(--accent-blue);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-4);
}

.fleet-spec-item {
  display: flex;
  gap: var(--space-2);
  font-size: 14px;
  margin-bottom: var(--space-2);
}

.fleet-spec-item i { color: var(--red); font-size: 10px; margin-top: 5px; }

/* Capability Cards (Service Detail Pages) */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-8);
}

.cap-card {
  background: var(--white);
  padding: var(--space-10) var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  transition: all var(--dur-base) var(--ease-out);
  text-align: center;
  height: 100%;
}

.cap-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); }

.cap-icon { font-size: 42px; color: var(--blue-dark); margin-bottom: var(--space-4); }

.cap-title { font-weight: 800; font-size: var(--text-2xl); }

/* Related Navigation Cards (Horizontal) */
.related-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.related-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  transition: all var(--dur-base) var(--ease-out);
  text-decoration: none;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.related-card:hover { 
  transform: translateY(-4px); 
  box-shadow: var(--shadow-xl); 
  border-color: var(--blue-light);
}

.related-img-wrapper {
  width: 100%;
  height: 200px;
  overflow: hidden;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
}

.related-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 6s linear;
}

.related-card:hover .related-img-wrapper img {
  transform: scale(1.05);
}

.related-content {
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
  text-align: left;
}

.related-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-2xl);
  color: var(--text-dark);
  margin-bottom: var(--space-2);
}

.related-detail {
  font-size: var(--text-base);
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.related-link {
  font-weight: 700;
  color: var(--red);
  text-transform: uppercase;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: auto;
}

.related-card:hover .related-link {
  color: var(--blue);
}

@media (min-width: 768px) {
  .related-card {
    flex-direction: row;
    height: auto;
  }
  .related-img-wrapper {
    width: 35%;
    height: auto;
    min-height: 200px;
    border-bottom: none;
    border-right: 1px solid var(--border);
  }
  .related-content {
    width: 65%;
  }
}

/* Compliance Card (3D Tilt Effect) */
.compliance-card, .feature-card-premium {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.9));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 1.5rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px, rgba(0, 0, 0, 0.05) 0px 20px 40px;
  transform: perspective(2000px) rotateY(-8deg) rotateX(4deg);
  transition: all 0.5s var(--ease-out);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.compliance-card:hover, .feature-card-premium:hover {
  transform: perspective(2000px) rotateY(0deg) rotateX(0deg);
  box-shadow: rgba(0, 0, 0, 0.15) 0px 20px 60px;
}

.compliance-list li {
  display: flex;
  gap: var(--space-3);
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.compliance-list li i { color: var(--red); font-size: 18px; }

/* 5. Shared Utilities & Responsive Grids */
.max-w-3xl { max-width: 48rem; margin-inline: auto; }
.max-w-6xl { max-width: 72rem; margin-inline: auto; }
.text-justify { text-align: justify; }
.grey-bg { background-color: var(--bg-section) !important; }
.split-start { align-items: start; }

@media (min-width: 768px) {
  .values-grid { grid-template-columns: repeat(3, 1fr); }
  .fleet-grid { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1200px) {
  .fleet-grid { grid-template-columns: repeat(4, 1fr); }
  .cap-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 1024px) {
  .compliance-card, .feature-card-premium { transform: none !important; padding: var(--space-6); }
}