/* =========================================================
   Global Base
========================================================= */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
}

section {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

footer {
  margin-top: auto;
}

/* =========================================================
   Hero (Main Top Image)
========================================================= */
.hero {
  background-image: url('../images/main-top.png');
  background-size: cover;
  background-position: center;
  width: 100%;
  height: 40vh;
}

/* Responsive Hero Height */
@media (max-width: 768px) {
  .hero {
    height: 35vh;
  }
}

@media (max-width: 480px) {
  .hero {
    height: 30vh;
  }
}

/* =========================================================
   Company Info Page Spacing
========================================================= */
.page-company .hero {
  margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
  .page-company .hero {
    margin-bottom: 2rem;
  }
}

@media (max-width: 480px) {
  .page-company .hero {
    margin-bottom: 1rem;
  }
}

/* =========================================================
   Images
========================================================= */
.menu-img {
  width: 100%;
  height: auto;
  display: block;
}

/* =========================================================
   Navigation
========================================================= */
.navbar-nav .nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  color: #ffffff !important;
}

.navbar-nav .nav-link:hover {
  color: #87ceeb !important;
}

/* =========================================================
   Navigation Active Underline
   (Text width only - PC & Mobile same)
========================================================= */
.navbar-nav .nav-link span {
  position: relative;
  display: inline-block;
}

.navbar-nav .nav-link.active span::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
}

/* =========================================================
   Mobile Navigation Adjustments
========================================================= */
@media (max-width: 991px) {
  .navbar-nav {
    text-align: left;
  }

  .navbar-nav .nav-link {
    padding-left: 1rem;
  }
}

/* =========================================================
   Top Button (Unified)
========================================================= */
#topBtn {
  position: fixed;
  right: 20px;
  bottom: 50%;
  transform: translateY(50%);
  display: none;
  z-index: 999;
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: 50%;
  background-color: #ffffff;
  border: 1px solid #ddd;
}

#topBtn img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: transparent;
}