/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  top: 10px;
  left: 16px;
  right: 16px;
  background: rgba(251, 253, 255, .96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 8px 32px rgba(45, 111, 148, .12);
  border-radius: 20px;
  border: 1px solid rgba(153, 204, 255, .44);
  padding: 10px 0;
}

.nav-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo img.logo-img {
  height: 56px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--white);
  transition: var(--transition);
  position: relative;
}

.navbar.scrolled .nav-links a {
  color: var(--text-dark);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--blue-deep);
  border-radius: 2px;
  transform: scaleX(0);
  transition: var(--transition);
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-links a.nav-cta {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-main));
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 100px;
  box-shadow: 0 4px 14px rgba(45, 111, 148, .22);
}

.nav-links a.nav-cta::after {
  display: none;
}

.nav-links a.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(45, 111, 148, .28);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 10px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  transition: all .3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.navbar.scrolled .hamburger:hover {
  background: var(--blue-pale);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 10px;
  transition: all .3s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.navbar.scrolled .hamburger span {
  background: var(--text-dark);
}

/* X-Transformation Animation */
.hamburger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.hamburger.active span {
  background: var(--text-dark) !important;
}


/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--text-dark);
  padding: 56px 0 32px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.footer-brand {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-logo {
  height: 80px;
  width: auto;
  object-fit: contain;
  opacity: 1;
}

.footer-slogan {
  color: rgba(255, 255, 255, .65);
  font-size: .9rem;
  font-style: italic;
}

.footer-entity {
  color: rgba(255, 255, 255, .62);
  font-size: .84rem;
  font-weight: 600;
}

.footer-addr {
  color: rgba(255, 255, 255, .45);
  font-size: .82rem;
}

.footer-hours {
  color: rgba(255, 255, 255, .45);
  font-size: .82rem;
}

.footer-links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: rgba(255, 255, 255, .55);
  font-size: .88rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--blue-light);
}

.footer-copy {
  color: rgba(255, 255, 255, .3);
  font-size: .8rem;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-top: 24px;
  width: 100%;
}

/* Navbar logo in footer */
.logo-icon {
  font-size: 1.4rem;
}

.logo-text {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, .8);
}

.logo-text strong {
  color: var(--blue-light);
}

/* Navbar logo (light version) */
.navbar .logo-text {
  color: var(--white);
}

.navbar.scrolled .logo-text {
  color: var(--text-dark);
}

.navbar.scrolled .logo-text strong {
  color: var(--blue-deep);
}

/* =============================================
   FLOATING BUTTONS
   ============================================= */
.float-buttons {
  position: fixed;
  bottom: 28px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 999;
}

.float-buttons.is-mobile-hero {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
}

.float-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px 12px 14px;
  border-radius: 100px;
  color: var(--white);
  font-weight: 600;
  font-size: .85rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .2);
  transition: var(--transition);
  white-space: nowrap;
}

.float-btn:hover {
  transform: translateX(-4px) scale(1.04);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .25);
}

.zalo-float {
  background: linear-gradient(135deg, #0068ff, #339dff);
  animation: zalo-shake 3s infinite ease-in-out, pulse-zalo 2s infinite;
}

.fb-float {
  background: linear-gradient(135deg, #1877f2, #42a5f5);
  animation: pulse-fb 2s infinite 1s; /* Bắt đầu trễ 1 giây để so le với Zalo */
}

.top-float {
  background: linear-gradient(135deg, var(--text-dark), var(--blue-deep));
}

.top-float.is-hidden {
  display: none;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}

.float-label {
  font-weight: 600;
  color: #e0f2f1; /* Một tông xanh battle rất nhạt để nổi bật trên nền xanh đậm */
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}