/* Base colors */
:root {
  --primary-color: #111827; /* dark gray */
  --accent-color: #2563eb;  /* modern blue */
  --light-color: #f9fafb;
}

/*hero*/
.hero-section {
  min-height: 85vh;
  background: url("../images/hero.png") center center / cover no-repeat;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6); /* dark overlay for readability */
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2; /* ensure text sits above overlay */
}


/* Navbar */
.custom-navbar {
  background: var(--primary-color); /* always dark */
  transition: all 0.3s ease;
  padding: 1rem 0;
}

.custom-navbar .nav-link {
  color: #f3f4f6; /* light gray text */
  font-weight: 500;
  margin-left: 1rem;
  transition: color 0.2s ease;
}

.custom-navbar .nav-link:hover {
  color: var(--accent-color); /* highlight on hover */
}

.custom-navbar .navbar-brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.25rem;
}

.custom-navbar .navbar-brand:hover {
  color: var(--accent-color);
}

/* Remove scroll toggle */
.navbar-scrolled {
  background: var(--primary-color) !important;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

/* Buttons */
.btn-accent {
  background: var(--accent-color);
  color: #fff;
  font-weight: 600;
  border-radius: 0; /* sharp edges */
  padding: 0.6rem 1.4rem;
  transition: background 0.2s ease;
}

.btn-accent:hover {
  background: #1d4ed8; /* darker blue */
  color: #fff;
}

.btn {
  border-radius: 0 !important; /* remove all rounding */
}

/* Footer */
.footer {
  background: var(--primary-color);
  color: #9ca3af;
}

.footer p {
  margin: 0;
}

/* Shadow */
.shadow-md {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}