/* ============================================
   Caelior Inc — Corporate Website Styles
   ============================================ */

:root {
  --color-bg: #0d1117;
  --color-bg-section: #161b22;
  --color-bg-card: #1c2128;
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-accent: #60a5fa;
  --color-text: #e6edf3;
  --color-text-muted: #8b949e;
  --color-border: #30363d;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-display: "Playfair Display", Georgia, serif;
  --nav-height: 72px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary);
}

.text-accent {
  color: var(--color-accent);
}

.section-padding {
  padding: 5rem 0;
}

.bg-dark-section {
  background: var(--color-bg-section);
}

.section-header {
  margin-bottom: 3rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto;
}

/* ---- Loader ---- */
#page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  text-align: center;
}

.loader-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  display: block;
  animation: pulse 1.2s ease-in-out infinite;
}

.loader-inner p {
  margin-top: 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--color-text-muted);
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.95); }
}

/* ---- Navbar ---- */
.navbar {
  padding: 1rem 0;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.navbar-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text) !important;
  letter-spacing: 0.05em;
}

.brand-accent,
.footer-brand span {
  color: var(--color-primary);
}

.nav-link {
  color: var(--color-text-muted) !important;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text) !important;
}

.navbar-toggler {
  border-color: var(--color-border);
}

.navbar-toggler-icon {
  filter: invert(1);
}

.btn-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.85rem;
  padding: 0.65rem 1.5rem;
  border-radius: 4px;
}

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

.btn-outline-light {
  border-color: var(--color-border);
  color: var(--color-text);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  border-radius: 4px;
}

.btn-outline-light:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ---- Hero ---- */
.hero-section {
  margin-top: 0;
}

.hero-slide {
  min-height: 100vh;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13, 17, 23, 0.88) 0%,
    rgba(13, 17, 23, 0.55) 50%,
    rgba(13, 17, 23, 0.75) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: var(--nav-height);
  padding-bottom: 4rem;
}

.hero-label {
  font-size: 0.8rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.hero-indicators {
  bottom: 2rem;
}

.hero-indicators button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  border: none;
}

.hero-indicators button.active {
  background: var(--color-primary);
}

.hero-control {
  width: 48px;
  opacity: 0.7;
}

.hero-control:hover {
  opacity: 1;
}

/* ---- Highlights ---- */
.highlight-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 2rem 1.5rem;
  height: 100%;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition);
}

.highlight-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.highlight-card i {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.highlight-card h3 {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.highlight-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* ---- Services ---- */
.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  height: 100%;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.service-img {
  height: 200px;
  overflow: hidden;
}

.service-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.service-card:hover .service-img img {
  transform: scale(1.06);
}

.service-body {
  padding: 1.5rem;
}

.service-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.service-body p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.service-tag {
  font-size: 0.75rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---- Catalog ---- */
.catalog-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  height: 100%;
  transition: border-color var(--transition);
}

.catalog-card:hover {
  border-color: var(--color-primary);
}

.catalog-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

@media (min-width: 768px) {
  .catalog-img {
    height: 100%;
    min-height: 220px;
  }
}

.catalog-body {
  padding: 1.5rem;
}

.catalog-badge {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: rgba(59, 130, 246, 0.15);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

.catalog-body h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.catalog-body > p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.catalog-features {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.catalog-features li {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding: 0.25rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.catalog-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

.catalog-note {
  color: var(--color-text-muted);
}

/* ---- Stats ---- */
.stats-strip {
  padding: 3.5rem 0;
  background: linear-gradient(90deg, var(--color-primary) 0%, #1d4ed8 100%);
}

.stat-item .stat-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: #fff;
}

.stat-suffix {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: #fff;
}

.stat-item p {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.85);
}

/* ---- About ---- */
.about-img-wrap {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
}

.about-img {
  width: 100%;
  border-radius: 8px;
}

.about-badge {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--color-primary);
  padding: 1.25rem 1.5rem;
  border-radius: 8px;
  text-align: center;
}

.about-badge-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.about-badge-text {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.about-lead {
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.about-mini-stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-accent);
}

.about-mini-stats span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---- Portfolio ---- */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 0.5rem 1.25rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.portfolio-card {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.portfolio-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-card:hover img {
  transform: scale(1.08);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 17, 23, 0.95) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-cat {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.portfolio-overlay h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}

.portfolio-item.hidden {
  display: none;
}

/* ---- Testimonials ---- */
.testimonial-card {
  max-width: 720px;
  text-align: center;
  padding: 2rem;
}

.testimonial-quote {
  font-size: 3rem;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stars {
  color: #fbbf24;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.testimonial-card p {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.testimonial-author strong {
  display: block;
  font-size: 1rem;
}

.testimonial-author span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.testimonial-control {
  width: 44px;
  height: 44px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  opacity: 1;
  top: 50%;
  transform: translateY(-50%);
}

.testimonial-control span {
  font-size: 1.5rem;
  color: var(--color-text);
}

/* ---- Team ---- */
.team-card {
  text-align: center;
}

.team-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 1rem;
  border: 1px solid var(--color-border);
}

.team-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.team-card > span {
  display: block;
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.team-focus {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0;
}

/* ---- FAQ ---- */
.faq-accordion .accordion-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  margin-bottom: 0.5rem;
  border-radius: 8px !important;
  overflow: hidden;
}

.faq-accordion .accordion-button {
  background: var(--color-bg-card);
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  box-shadow: none;
}

.faq-accordion .accordion-button:not(.collapsed) {
  background: var(--color-bg-card);
  color: var(--color-accent);
}

.faq-accordion .accordion-button::after {
  filter: invert(1);
}

.faq-accordion .accordion-body {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---- Contact ---- */
.contact-form .form-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.contact-form .form-control {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: 4px;
  padding: 0.75rem 1rem;
}

.contact-form .form-control:focus {
  background: var(--color-bg-card);
  border-color: var(--color-primary);
  color: var(--color-text);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.contact-form .form-control::placeholder {
  color: var(--color-text-muted);
  opacity: 0.6;
}

.form-feedback {
  font-size: 0.9rem;
}

.form-feedback.success {
  color: #34d399;
}

.form-feedback.error {
  color: #f87171;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-info-item i {
  font-size: 1.25rem;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.contact-info-item h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.contact-info-item p {
  margin: 0;
  font-size: 0.95rem;
}

.contact-info-item a {
  color: var(--color-text);
}

.contact-info-item a:hover {
  color: var(--color-accent);
}

/* ---- Footer ---- */
.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-section);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0.5rem 0 0;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}

.footer-nav a {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-nav a:hover {
  color: var(--color-text);
}

.footer-email {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ---- Responsive ---- */
@media (max-width: 991px) {
  .navbar-collapse {
    background: var(--color-bg-section);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 0.5rem;
    border: 1px solid var(--color-border);
  }

  .nav-cta {
    margin-top: 0.5rem;
    width: 100%;
  }
}

@media (max-width: 767px) {
  .section-padding {
    padding: 3.5rem 0;
  }

  .hero-slide {
    min-height: 85vh;
  }

  .catalog-img {
    height: 180px;
  }
}