/* CSS variables: simple, editable theme */
:root {
  --color-primary: #2596be;   /* logo blue */
  --color-secondary: #2f3b45; /* slate grey */
  --color-accent: #f3901f;    /* logo orange */
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #6b7280;

  --max-width: 1200px;
  --radius: 10px;
  --shadow: 0 10px 25px rgba(0,0,0,0.08);

  --header-height: 72px;
}

/* Reset & base */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-accent); }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; }
.section--tight { padding: 32px 0; }

/* Top Header */
.top-header {
  background: var(--color-primary);
  color: #fff;
  padding: 8px 0;
  font-size: 0.9rem;
}
.top-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.contact-info {
  display: flex;
  gap: 20px;
  align-items: center;
}
.contact-info i {
  margin-right: 5px;
}
.social-links {
  display: flex;
  gap: 15px;
}
.social-links a {
  color: #fff;
  transition: opacity 0.3s ease;
}
.social-links a:hover {
  opacity: 0.8;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}
.header-inner {
  height: var(--header-height);
  display: flex; align-items: center; justify-content: space-between;
}
.logo {
  display: flex; align-items: center;
}
.logo img { height: 60px; width: auto; max-width: 100%; }
.logo .brand {
  font-weight: 700; font-size: 2.125rem; letter-spacing: 0.4px;
  color: var(--color-primary);
}
.nav {
  display: flex; align-items: center; gap: 24px;
}
.nav a {
  color: var(--color-secondary);
  font-weight: 600;
}
.nav a.active { color: var(--color-primary); }
.cta-btn {
  padding: 10px 16px; border-radius: 8px; border: 1px solid var(--color-primary);
  color: #fff; background: var(--color-primary);
}
.cta-btn:hover { background: var(--color-accent); border-color: var(--color-accent); }

.hamburger {
  display: none; border: none; background: transparent; cursor: pointer;
}
.hamburger span {
  display: block; width: 24px; height: 2px; background: var(--color-secondary); margin: 5px 0;
}

.mobile-menu { display: none; }

/* Mobile nav (drawer) */

.no-scroll { overflow: hidden; }

:root {
  --drawer-width: 360px;
  --drawer-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (max-width: 900px) {
  .nav { display: none; }
  .hamburger { display: block; }

  /* backdrop + wrapper */
  .mobile-menu {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1100;
    background: rgba(0,0,0,0.0);
    opacity: 0;
    pointer-events: none;
    transition: background 220ms ease, opacity 220ms ease;
  }

  .mobile-menu.open {
    background: rgba(0,0,0,0.4);
    opacity: 1;
    pointer-events: auto;
  }

  /* drawer panel */
  .mobile-sheet {
    position: absolute;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(var(--drawer-width), 90vw);

    /* Premium glass look */
    background: rgba(255,255,255,0.72);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-left: 1px solid rgba(255,255,255,0.55);

    padding: 18px 18px;
    box-shadow:
      0 20px 60px rgba(0,0,0,0.28),
      0 0 0 1px rgba(37,150,190,0.08);

    display: flex;
    flex-direction: column;
    gap: 10px;

    transform: translateX(105%);
    transition: transform 380ms var(--drawer-ease);

    /* make links scroll inside drawer if needed */
    overflow: auto;
  }

  .mobile-close {
    appearance: none;
    border: 0;
    background: rgba(15,23,42,0.06);
    color: #0f172a;

    width: 38px;
    height: 38px;
    border-radius: 12px;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;

    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1;

    position: sticky;
    top: 10px;
    margin-left: auto;
    margin-bottom: 6px;

    transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  }

  .mobile-close:hover {
    background: rgba(37,150,190,0.18);
    transform: translateY(-1px);
  }

  .mobile-close:active {
    transform: translateY(0);
  }

  .mobile-close:focus-visible {
    outline: 3px solid rgba(37,150,190,0.35);
    outline-offset: 2px;
  }


  .mobile-menu.open .mobile-sheet {
    transform: translateX(0);
  }

  /* link styling */
  .mobile-sheet a {
    color: var(--color-secondary);
    font-weight: 700;
    padding: 12px 12px;
    border-radius: 10px;
    transition: background 160ms ease, color 160ms ease, transform 160ms ease;
    display: flex;
    align-items: center;
    justify-content: flex-start;
  }

  .mobile-sheet a:hover {
    background: rgba(37,150,190,0.10);
    color: var(--color-primary);
    transform: translateX(-2px);
  }

  .mobile-sheet a:focus-visible {
    outline: 3px solid rgba(37,150,190,0.35);
    outline-offset: 2px;
  }

  .mobile-sheet .cta-btn {
    margin-top: 8px;
    justify-content: center;
    background: var(--color-primary);
    color: #fff;
    border: 1px solid var(--color-primary);
  }

  .mobile-sheet .cta-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #1a1a1a;
    transform: translateX(0);
  }
}


/* Hero Slider */
.hero-slider {
  position: relative; min-height: 60vh; overflow: hidden;
}

.slider-container {
  position: relative; width: 100%; height: 100%;
}

.slides {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.5s ease;
}

.slide {
  position: relative;
  width: 100%;
  height: 100%;
  flex: 0 0 100%;
  min-width: 100%;
  transition: transform 0.5s ease;
}




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

.slide-content {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  text-align: center; color: #fff; z-index: 2; padding: 40px 20px;
  background: rgba(31,78,121,0.7); border-radius: 10px; max-width: 600px;
}

.slide-title {
  font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; margin: 0 0 10px;
}

.slide-subtitle {
  font-size: clamp(1rem, 3vw, 1.25rem); color: #eaf3fb; max-width: 500px; margin: 0 auto 20px;
}

.slide-actions {
  display: flex; justify-content: center; gap: 12px; flex-wrap: wrap;
}

.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  background: rgba(255,255,255,0.2); color: #fff; border: none; padding: 12px 16px;
  border-radius: 50%; cursor: pointer; font-size: 1.5rem; transition: background 0.3s ease;
}

.slider-arrow:hover {
  background: rgba(255,255,255,0.4);
}

.slider-arrow.prev {
  left: 20px;
}

.slider-arrow.next {
  right: 20px;
}

.slider-dots {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 3;
}

.dot {
  width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.5);
  cursor: pointer; transition: background 0.3s ease;
}

.dot.active {
  background: #fff;
}

/* Responsive slider */
@media (max-width: 768px) {
  .slide-content {
    padding: 20px 15px; max-width: 90%;
  }

  .slider-arrow {
    padding: 8px 12px; font-size: 1.2rem;
  }

  .slider-arrow.prev {
    left: 10px;
  }

  .slider-arrow.next {
    right: 10px;
  }

  .slider-dots {
    bottom: 10px;
  }
}

/* Touch support */
@media (hover: none) and (pointer: coarse) {
  .slider-arrow {
    padding: 16px 20px; font-size: 1.8rem;
  }
}

/* Hero (legacy - for other pages) */
.hero {
  position: relative; min-height: 60vh; display: grid; place-items: center; color: #fff;
  background: linear-gradient( to bottom, rgba(31,78,121,0.65), rgba(31,78,121,0.65) ),
              url('../images/hero-banner.jpg') center/cover no-repeat;
}
.hero--about { background-image: linear-gradient( to bottom, rgba(31,78,121,0.65), rgba(31,78,121,0.65) ), url('../images/about-hero.jpg'); }
.hero--services { background-image: linear-gradient( to bottom, rgba(31,78,121,0.65), rgba(31,78,121,0.65) ), url('../images/services-hero.jpg'); }
.hero--projects { background-image: linear-gradient( to bottom, rgba(31,78,121,0.65), rgba(31,78,121,0.65) ), url('../images/projects-hero.jpg'); }
.hero--contact { background-image: linear-gradient( to bottom, rgba(31,78,121,0.65), rgba(31,78,121,0.65) ), url('../images/contact-hero.jpg'); }

.hero-content {
  text-align: center; padding: 40px 20px;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; margin: 0 0 10px;
}
.hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.25rem); color: #eaf3fb; max-width: 800px; margin: 0 auto 20px;
}
.hero-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 12px 16px; border-radius: 8px; font-weight: 700;
  border: 1px solid transparent;
}
.btn.primary { background: var(--color-accent); color: #1a1a1a; border-color: var(--color-accent); }
.btn.secondary { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.35); }
.btn.secondary:hover { background: rgba(255,255,255,0.22); }

/* Cards */
.cards {
  display: grid; gap: 20px; grid-template-columns: repeat(4, 1fr);
}
.card {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden; display: flex; flex-direction: column;
}
.card img { height: 160px; object-fit: cover; }
.card-body { padding: 16px; }
.card-title { font-weight: 700; margin: 0 0 8px; color: var(--color-secondary); }
.card-text { color: var(--color-muted); }

/* Responsive grid */
@media (max-width: 1100px) { .cards { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 800px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .cards { grid-template-columns: 1fr; } }

/* Value badges */
.values {
  display: grid; gap: 16px; grid-template-columns: repeat(4, 1fr);
}
.value {
  border: 1px solid #e5e7eb; border-radius: var(--radius); padding: 16px; background: #fff;
}
.value h4 { margin: 0 0 6px; color: var(--color-secondary); }
.value p { margin: 0; color: var(--color-muted); }

/* Responsive for values */
@media (max-width: 900px) { .values { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .values { grid-template-columns: 1fr; } }

/* Feature list */
.features {
  display: grid; gap: 20px; grid-template-columns: repeat(2, 1fr);
}
.feature {
  display: flex; gap: 16px; background: #fff; border: 1px solid #e5e7eb; border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow);
}
.feature img { width: 42px; height: 42px; }
@media (max-width: 820px) { .features { grid-template-columns: 1fr; } }

/* Projects grid */
.projects-grid {
  display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr);
}
.project-card {
  border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow);
}
.project-card img { height: 200px; width: 100%; object-fit: cover; }
.project-card .info { padding: 14px; }
.project-card .info h3 { margin: 0 0 6px; color: var(--color-secondary); }
.project-card .info p { margin: 0; color: var(--color-muted); }
@media (max-width: 1100px) { .projects-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .projects-grid { grid-template-columns: 1fr; } }

/* Gallery */
.gallery {
  display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.gallery-item {
  position: relative; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}
.gallery-item:hover {
  transform: scale(1.05);
}
.gallery-item img {
  width: 100%; height: 250px; object-fit: cover; display: block;
}
.gallery-overlay {
  position: absolute; bottom: 0; left: 0; right: 0; background: rgba(0,0,0,0.7);
  color: #fff; padding: 16px; transform: translateY(100%); transition: transform 0.3s ease;
}
.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}
.gallery-overlay h3 { margin: 0 0 8px; font-size: 1.25rem; }
.gallery-overlay p { margin: 0; opacity: 0.9; }
@media (max-width: 768px) {
  .gallery { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
  .gallery-item img { height: 200px; }
}

/* Content blocks */
.lead { font-size: 1.125rem; color: var(--color-secondary); }
.kpis {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.kpi { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; text-align: center; }
.kpi .num { font-size: 1.75rem; font-weight: 800; color: var(--color-primary); }
.kpi .label { color: var(--color-muted); }
@media (max-width: 900px) { .kpis { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .kpis { grid-template-columns: 1fr; } }

/* Forms */
.form {
  display: grid; gap: 16px; grid-template-columns: repeat(2, 1fr);
}
.form .field { display: flex; flex-direction: column; gap: 8px; }
.form label { font-weight: 600; color: var(--color-secondary); }
.form input, .form textarea {
  padding: 12px; border: 1px solid #e5e7eb; border-radius: 8px;
}
.form textarea { min-height: 140px; grid-column: span 2; }
.form .actions { display: flex; gap: 12px; grid-column: span 2; }
.form .error { color: #b91c1c; font-size: 0.95rem; }
@media (max-width: 720px) { .form { grid-template-columns: 1fr; } .form textarea, .form .actions { grid-column: auto; } }

/* Footer */
.site-footer {
  background: #0f172a; color: #e5e7eb; margin-top: 60px;
}
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 20px; padding: 40px 20px;
}
.footer-col h4 { margin: 0 0 10px; color: #fff; }
.footer-col p, .footer-col a { color: #cbd5e1; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 16px 20px;
  text-align: center;
  color: #94a3b8;
}

/* Social icons (footer-bottom) */
.social-icons {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 10px;
}

.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  transition: transform 0.15s ease, background 0.15s ease;
}

.social-icons a:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,0.12);
}

.social-icons i {
  color: #e5e7eb;
  font-size: 18px;
}
@media (max-width: 900px) { .footer-inner { grid-template-columns: 1fr; } }

/* Preloader */
#site-preloader {
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 10000;
  display: grid;
  place-items: center;
  opacity: 1;
  transition: opacity 0.3s ease;
}

#site-preloader.is-hidden {
  opacity: 0;
  pointer-events: none;
}

#site-preloader .spinner {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 4px solid rgba(37,150,190,0.15);
  border-top-color: rgba(37,150,190,1);
  animation: preloader-spin 0.8s linear infinite;
}

@keyframes preloader-spin {
  to { transform: rotate(360deg); }
}

/* Animations */
.fade-up {
  opacity: 0; transform: translateY(16px); transition: opacity 600ms ease, transform 600ms ease;
}

.fade-up.in-view { opacity: 1; transform: translateY(0); }

/* Reuse fade-up for showcase cards on load (no JS required) */
.showcase .fade-up {
  opacity: 1;
  transform: translateY(0);
}