/* ============================================================
   AlphaCo Logistics - Global Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800&family=Barlow:wght@300;400;500;600&display=swap');

:root {
  --blue:    #3a7cbf;
  --blue-dk: #2a5f96;
  --gray:    #8c9bab;
  --gray-dk: #4a5568;
  --dark:    #1a2330;
  --light:   #f4f6f8;
  --white:   #ffffff;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Barlow', sans-serif;
  color: var(--dark);
  background: var(--white);
}

h1, h2, h3, h4, h5, .font-display {
  font-family: 'Barlow Condensed', sans-serif;
  letter-spacing: 0.02em;
}

/* -- NAV -- */
#navbar { transition: background 0.3s, box-shadow 0.3s; }
#navbar.scrolled {
  background: rgba(26,35,48,0.98) !important;
  box-shadow: 0 2px 20px rgba(0,0,0,0.4);
}
.nav-link {
  position: relative;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  transition: color 0.2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: var(--blue);
  transition: width 0.25s;
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }
.nav-link.active { color: #fff; }

/* -- BUTTONS -- */
.btn-primary {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 2.2rem;
  border-radius: 3px;
  transition: background 0.2s, transform 0.15s;
  border: 2px solid var(--blue);
}
.btn-primary:hover {
  background: var(--blue-dk);
  border-color: var(--blue-dk);
  transform: translateY(-2px);
}
.btn-secondary {
  display: inline-block;
  background: transparent;
  color: #fff;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 2.2rem;
  border-radius: 3px;
  border: 2px solid rgba(255,255,255,0.65);
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-primary-dark {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 2.4rem;
  border-radius: 3px;
  border: 2px solid var(--blue);
  transition: background 0.2s, transform 0.15s;
}
.btn-primary-dark:hover {
  background: var(--blue-dk);
  border-color: var(--blue-dk);
  transform: translateY(-2px);
}

/* -- SECTION LABELS -- */
.section-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
}
.section-rule {
  display: inline-block;
  width: 48px;
  height: 3px;
  background: var(--blue);
  vertical-align: middle;
  margin-right: 0.6rem;
  border-radius: 2px;
}

/* -- HERO -- */
/* Path is relative from each page's subdirectory: ../img/ */
.hero-bg {
  background-image:
    linear-gradient(to bottom right, rgba(26,35,48,0.80), rgba(42,95,150,0.55)),
    url('../img/Hero-banner.jpg');
  background-size: cover;
  background-position: center center;
}

/* -- SERVICE CARDS -- */
.service-card {
  border-radius: 4px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
  transition: transform 0.25s, box-shadow 0.25s;
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 28px rgba(58,124,191,0.18);
}
.service-card-img {
  height: 220px;
  object-fit: cover;
  width: 100%;
  display: block;
}

/* -- ABOUT SPLIT -- */
.about-img-wrap { position: relative; }
.about-img-wrap::before {
  content: '';
  position: absolute;
  top: -16px; left: -16px;
  width: 100%; height: 100%;
  border: 3px solid var(--blue);
  border-radius: 4px;
  z-index: 0;
}
.about-img-wrap > * { position: relative; z-index: 1; }

/* -- DIVIDER ACCENT -- */
.accent-bar {
  width: 56px;
  height: 4px;
  background: var(--blue);
  border-radius: 2px;
}

/* -- STAT BAR -- */
.stat-item { border-left: 3px solid var(--blue); padding-left: 1.25rem; }

/* -- TECH BANNER -- */
.tech-banner {
  background: linear-gradient(135deg, var(--dark) 60%, var(--blue-dk));
  position: relative;
  overflow: hidden;
}
.tech-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg, transparent, transparent 18px,
    rgba(255,255,255,0.02) 18px, rgba(255,255,255,0.02) 36px
  );
}

/* -- FOOTER -- */
footer a { transition: color 0.2s; }
footer a:hover { color: var(--blue); }

/* -- CONTACT FORM -- */
.form-input {
  width: 100%;
  background: #f4f6f8;
  border: 1.5px solid #d8dfe8;
  border-radius: 3px;
  padding: 0.75rem 1rem;
  font-family: 'Barlow', sans-serif;
  font-size: 0.95rem;
  color: var(--dark);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(58,124,191,0.15);
}
.form-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-dk);
  display: block;
  margin-bottom: 0.4rem;
}

/* -- MOBILE NAV -- */
#mobile-menu { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
#mobile-menu.open { max-height: 400px; }

/* -- ANIMATIONS -- */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }

/* -- SKIP LINK (WCAG) -- */
.skip-link {
  position: absolute; top: -100px; left: 1rem;
  background: var(--blue); color: #fff;
  padding: 0.5rem 1rem; border-radius: 0 0 4px 4px;
  font-family: 'Barlow Condensed', sans-serif; font-weight: 700;
  z-index: 9999; transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* -- FOCUS STYLES (WCAG) -- */
a:focus-visible, button:focus-visible,
input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}