:root {
  --ktp-navy: #0b2545;
  --ktp-navy-dark: #071b33;
  --ktp-accent: #f2a71b; /* vàng cần cẩu / an toàn */
  --ktp-steel: #4a6b8a;
  --ktp-light: #f5f7fa;
}

body {
  font-family: 'Inter', sans-serif;
  color: #1c2b3a;
  background: #fff;
}

h1, h2, h3, h4, h5, .ktp-brand-text {
  font-family: 'Oswald', sans-serif;
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* Topbar */
.ktp-topbar {
  background: var(--ktp-navy-dark);
  color: #cfe0f5;
  font-size: .85rem;
}
.ktp-lang-switch a { color: #cfe0f5; text-decoration: none; padding: 0 4px; }
.ktp-lang-switch a.active { color: var(--ktp-accent); font-weight: 600; }

/* Navbar */
.ktp-navbar {
  background: var(--ktp-navy);
  box-shadow: 0 2px 10px rgba(0,0,0,.15);
}
.ktp-navbar .navbar-toggler {
  border-color: rgba(255,255,255,.5);
}
.ktp-navbar .navbar-toggler:focus {
  box-shadow: 0 0 0 .2rem rgba(255,255,255,.25);
}
.ktp-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.95)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.ktp-brand-text { color: #fff; font-size: 1.4rem; }
.ktp-logo-mark {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 6px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.ktp-logo-mark img { width: 100%; height: 100%; object-fit: contain; }
.ktp-logo-mark-text {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  font-size: .95rem;
  color: var(--ktp-navy-dark);
  letter-spacing: .5px;
}
.ktp-navbar .nav-link {
  color: #dce7f5;
  font-weight: 500;
  margin: 0 6px;
}
.ktp-navbar .nav-link:hover { color: var(--ktp-accent); }
.ktp-nav-cta {
  background: var(--ktp-accent);
  color: var(--ktp-navy-dark) !important;
  border-radius: 3px;
  padding: 6px 16px !important;
  font-weight: 700;
}

/* Dropdown menu */
.ktp-navbar .dropdown-menu {
  border: none;
  border-radius: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,.18);
  padding: 8px 0;
  margin-top: 0;
}
.ktp-navbar .dropdown-item {
  color: #1c2b3a;
  padding: 8px 20px;
  font-size: .92rem;
}
.ktp-navbar .dropdown-item:hover { background: #f5f7fa; color: var(--ktp-navy); }
.ktp-navbar .dropdown-header {
  color: var(--ktp-steel);
  font-family: 'Oswald', sans-serif;
  font-size: .75rem;
  padding: 6px 20px 2px;
}
@media (min-width: 992px) {
  .ktp-navbar .dropdown-menu { min-width: 260px; }
  .ktp-navbar .nav-item.dropdown:hover > .dropdown-menu { display: block; }
}

/* Flyout submenu cấp 3 (nhóm hãng -> danh sách thiết bị) */
.ktp-navbar .dropdown-submenu { position: relative; }
.ktp-navbar .dropdown-submenu > a.dropdown-toggle::after {
  float: right;
  margin-top: 7px;
  transform: rotate(-90deg);
}
.ktp-navbar .dropdown-submenu > .dropdown-menu {
  top: -8px;
  left: 100%;
  margin-left: 2px;
  display: none;
  max-height: 70vh;
  overflow-y: auto;
}
.ktp-navbar .dropdown-submenu.show > .dropdown-menu { display: block; }
@media (min-width: 992px) {
  .ktp-navbar .dropdown-submenu:hover > .dropdown-menu { display: block; }
}
@media (max-width: 991.98px) {
  .ktp-navbar .dropdown-submenu > .dropdown-menu { position: static; margin-left: 1rem; border: none; box-shadow: none; }
}

/* Hero */
.ktp-hero {
  background: linear-gradient(120deg, rgba(7,27,51,.55), rgba(11,37,69,.35)), var(--hero-image) center/cover no-repeat;
  color: #fff;
  padding: 220px 0 180px;
  min-height: 640px;
  display: flex;
  align-items: center;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
}
.ktp-hero h1 {
  font-size: 3rem;
  font-weight: 700;
  text-shadow: 0 2px 14px rgba(0,0,0,.65);
}
.ktp-hero .lead {
  text-shadow: 0 1px 8px rgba(0,0,0,.6);
}
@media (max-width: 767.98px) {
  .ktp-hero { padding: 80px 0 60px; clip-path: none; min-height: 420px; }
  .ktp-hero h1 { font-size: 2rem; }
  .ktp-section { padding: 48px 0; }
}
.ktp-hero .btn-accent {
  background: var(--ktp-accent);
  color: var(--ktp-navy-dark);
  font-weight: 700;
  border: none;
  padding: 12px 28px;
}

/* Sections */
.ktp-section { padding: 80px 0; }
.ktp-section-title {
  color: var(--ktp-navy);
  border-left: 6px solid var(--ktp-accent);
  padding-left: 14px;
  margin-bottom: 40px;
}
.ktp-section-title-row .ktp-section-title { margin-bottom: 0; }
.ktp-section-title-row { margin-bottom: 40px; }
.ktp-view-all {
  color: var(--ktp-navy);
  font-weight: 600;
  font-size: .9rem;
  text-decoration: none;
  white-space: nowrap;
}
.ktp-view-all:hover { color: var(--ktp-accent); }

/* Hero carousel */
.carousel-indicators.ktp-hero-indicators button { background-color: var(--ktp-accent); }
#ktpHeroCarousel .carousel-control-prev-icon,
#ktpHeroCarousel .carousel-control-next-icon { width: 2.2rem; height: 2.2rem; }

/* Product slider */
.ktp-slider-wrap { position: relative; display: flex; align-items: center; gap: 8px; }
.ktp-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 1rem;
  scroll-behavior: smooth;
  padding: 4px 2px 12px;
  flex: 1;
  scrollbar-width: thin;
}
.ktp-slider-item { flex: 0 0 auto; width: 220px; scroll-snap-align: start; }
.ktp-slider-arrow {
  flex: 0 0 auto;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--ktp-navy);
  background: #fff;
  color: var(--ktp-navy);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}
.ktp-slider-arrow:hover { background: var(--ktp-navy); color: #fff; }

.ktp-card {
  border: none;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(11,37,69,.08);
  transition: transform .2s ease;
  height: 100%;
}
.ktp-card:hover { transform: translateY(-6px); }
.ktp-card img { height: 190px; object-fit: cover; width: 100%; }
.ktp-card .card-body { padding: 20px; }
.ktp-card .card-title { color: var(--ktp-navy); font-family: 'Oswald', sans-serif; }

.ktp-partner-logo {
  height: 60px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: .7;
  transition: all .2s ease;
}
.ktp-partner-logo:hover { filter: none; opacity: 1; }

/* Footer */
.ktp-footer {
  background: var(--ktp-navy-dark);
  color: #b8c9dd;
}
.ktp-footer h5, .ktp-footer h6 { color: #fff; }
.ktp-footer a { color: #b8c9dd; text-decoration: none; }
.ktp-footer a:hover { color: var(--ktp-accent); }