/* Three-Tier Header Responsive CSS - TD Classic Theme */
/* Header được chia thành 3 phần: top-header, main-header, bottom-header */

/* ===== OVERRIDE OLD HEADER STYLES ===== */
/* Ẩn header cũ để tránh xung đột */
.site-header:not(.main-header) {
  display: none !important;
}

/* Đảm bảo main-header có class site-header */
.main-header.site-header {
  display: block !important;
}

/* ===== TOP HEADER - Thông tin liên hệ và Social ===== */
.top-header {
  background-color: #1a1a1a !important;
  color: #fff !important;
  padding: 0.5rem 0 !important;
  font-size: 0.8rem !important;
  border-bottom: 1px solid #333 !important;
}

.top-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-header .contact-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.top-header .contact-info .contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #ccc;
  text-decoration: none;
  transition: color 0.3s ease;
}

.top-header .contact-info .contact-item:hover {
  color: #fff;
}

.top-header .contact-info .contact-item i {
  font-size: 0.9rem;
  color: #666;
}

.top-header .top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

/* Remove legacy social styles entirely */

/* Removed legacy social hover styles */

/* Company Profile button - redesigned */
.top-header .btn-profile {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  background: #000;
  border: 1px solid #555;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  line-height: 1;
  white-space: nowrap;
}
.top-header .btn-profile:hover {
  background: #111;
  border-color: #777;
}
.top-header .btn-profile i {
  color: #fff;
  font-size: 0.95rem;
}

/* Ensure the container keeps left info and right action aligned */
.top-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Tidy spacing on small screens */
@media (max-width: 767.98px) {
  .top-header .container {
    gap: 0.5rem;
  }
  .top-header .btn-profile span {
    display: none; /* icon-only on very small screens */
  }
}

/* ===== MAIN HEADER - Logo và Navigation ===== */
.main-header {
  background-color: #000 !important;
  color: #fff !important;
  padding: 0.5rem 0 !important;
  position: relative;
  z-index: 1000;
}

/* Đảm bảo main-header có đầy đủ style của site-header */
.main-header.site-header {
  background-color: #000 !important;
  color: #fff !important;
  padding: 0.5rem 0 !important;
}

/* Đảm bảo main-header không bị ảnh hưởng bởi CSS cũ */
.main-header::before,
.main-header::after,
.main-header .navbar::before {
  display: none !important;
}

.main-header .navbar {
  position: relative;
  z-index: 20;
}

/* Hide navbar collapse container by default to prevent icon misalignment on mobile/tablet */
.main-header #navbarNav {
  display: none !important;
}

.main-header .container {
  position: relative;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: space-between;
  align-items: center;
}

/* Đảm bảo main-header hoạt động đúng mà không cần navbar-toggler */
.main-header .navbar {
  width: 100%;
}

/* Đảm bảo main-header .navbar-collapse hoạt động đúng */
.main-header .navbar-collapse {
  display: flex !important;
  flex-basis: auto;
  flex-grow: 1;
  align-items: center;
}

/* Đảm bảo main-header .container hoạt động đúng trên mobile */
@media (max-width: 991.98px) {
  .main-header .container {
    justify-content: center !important;
  }

  .main-header .navbar {
    justify-content: center !important;
  }

  .main-header .navbar-collapse {
    justify-content: center !important;
  }

  .main-header .navbar-nav {
    margin-left: 0 !important;
  }

  .main-header .header-left {
    justify-content: center !important;
  }
}

.main-header .header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.main-header .navbar-brand img {
  height: 30px;
  width: auto;
  filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.3))
    drop-shadow(0 0 16px rgba(255, 255, 255, 0.2));
  transition: all 0.3s ease;
}

.main-header .navbar-brand img:hover {
  filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.5))
    drop-shadow(0 0 24px rgba(255, 255, 255, 0.3));
  transform: scale(1.05);
  animation: none;
}

/* Logo text styling với hiệu ứng glow */
.main-header .navbar-brand {
  font-weight: 900 !important;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.4),
    0 0 20px rgba(255, 255, 255, 0.2), 0 0 30px rgba(255, 255, 255, 0.1);
  letter-spacing: 0.5px;
  font-family: "Arial Black", Arial, sans-serif;
  transition: all 0.3s ease;
}

.main-header .navbar-brand:hover {
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.7),
    0 0 30px rgba(255, 255, 255, 0.4), 0 0 45px rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
  filter: brightness(1.2);
  animation: none;
}

/* DateTime & Weather Widget - chỉ hiện trên desktop */
.main-header .datetime-weather-widget {
  display: none;
}

/* Navigation - chỉ hiện trên desktop */
.main-header .navbar-nav {
  display: none;
  flex-direction: row;
  margin-left: auto;
}

/* ===== BOTTOM HEADER - Mobile Navigation ===== */
.bottom-header {
  color: #fff !important;
  padding: 0.4rem 0 !important;
  display: none;
}

/* Hiển thị bottom-header trên mobile */
@media (max-width: 767.98px) {
  .bottom-header {
    display: flex !important;
  }
}

.bottom-header .container {
  display: flex !important;
  justify-content: space-around;
  align-items: center;
}

.bottom-header .mobile-nav-item {
  display: flex !important;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  color: #ccc;
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 0.35rem;
  border-radius: 0.5rem;
  min-width: 60px;
}

.bottom-header .mobile-nav-item:hover {
  color: #fff;
  background-color: #333;
  transform: translateY(-2px);
}

.bottom-header .mobile-nav-item i {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.bottom-header .mobile-nav-item .nav-text {
  font-size: 0.7rem;
  text-align: center;
  line-height: 1.2;
}

/* ===== RESPONSIVE BREAKPOINTS ===== */

/* DESKTOP LAYOUT (992px và lớn hơn) */
@media (min-width: 992px) {
  .top-header {
    display: block;
  }

  .main-header .datetime-weather-widget {
    display: block;
  }

  .main-header .navbar-nav {
    display: flex !important;
  }

  /* Show navbar collapse container on desktop */
  .main-header #navbarNav {
    display: flex !important;
  }

	/* CSS-only dropdowns on hover (no JS needed) */
	.navbar-nav .dropdown:hover > .dropdown-menu {
		display: block;
		margin-top: 0;
	}
	
	/* Ensure proper positioning within navbar */
	.navbar-nav .dropdown-menu {
		display: none;
		position: absolute;
	}

  .main-header .navbar-brand {
    font-weight: 900 !important;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.4),
      0 0 16px rgba(255, 255, 255, 0.2), 0 0 24px rgba(255, 255, 255, 0.1);
    letter-spacing: 0.5px;
    font-family: "Arial Black", Arial, sans-serif;
  }

  .main-header .navbar-brand img {
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.3))
      drop-shadow(0 0 12px rgba(255, 255, 255, 0.2));
  }

  .bottom-header {
    display: none;
  }
}

/* TABLET LAYOUT (768px - 991px) */
@media (max-width: 991.98px) and (min-width: 768px) {
  .top-header {
    display: none !important;
  }

  .main-header {
    justify-content: center !important;
  }

  .main-header .datetime-weather-widget {
    display: none;
  }

  .main-header .navbar-nav {
    display: none;
  }

  .main-header .header-left {
    justify-content: center !important;
  }

  .main-header .navbar-brand {
    font-size: 1.4rem !important;
    text-align: center;
    font-weight: 900 !important;
    text-shadow: 0 0 12px rgba(255, 255, 255, 0.5),
      0 0 24px rgba(255, 255, 255, 0.3), 0 0 36px rgba(255, 255, 255, 0.1);
    letter-spacing: 0.5px;
    font-family: "Arial Black", Arial, sans-serif;
  }

  .main-header .navbar-brand img {
    height: 32px !important;
    width: auto;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.4))
      drop-shadow(0 0 20px rgba(255, 255, 255, 0.2));
    transition: all 0.3s ease;
  }

  .main-header .navbar-brand img:hover {
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.6))
      drop-shadow(0 0 30px rgba(255, 255, 255, 0.3));
    transform: scale(1.05);
    animation: none;
  }

  .bottom-header {
    display: flex !important;
  }
}

/* MOBILE LAYOUT (dưới 768px) */
@media (max-width: 767.98px) {
  .top-header {
    display: none !important;
  }

  .top-header .contact-info {
    gap: 0.75rem;
  }

  .top-header .contact-info .contact-item {
    font-size: 0.75rem;
  }

  .top-header .social-links {
    gap: 0.5rem;
  }

  .top-header .social-links .social-link {
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.9rem;
  }

  /* Tạo layout ngang cho mobile */
  .main-header {
    display: flex;
    align-items: center;
    padding: 0.5rem 0 !important;
    background: linear-gradient(135deg, #000 0%, #1a1a1a 100%) !important;
    border-bottom: 1px solid #333 !important;
    position: relative;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  }

  .main-header .container {
    display: flex;
    align-items: center;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    position: relative;
    padding: 0 1rem;
  }

  .main-header .header-left {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .main-header .navbar-brand {
    font-size: 1.2rem !important;
    text-align: left;
    font-weight: 900 !important;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8),
      0 0 40px rgba(255, 255, 255, 0.4), 0 0 60px rgba(255, 255, 255, 0.2);
    letter-spacing: 0.8px;
    font-family: "Arial Black", Arial, sans-serif;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .main-header .navbar-brand:hover {
    text-shadow: 0 0 25px rgba(255, 255, 255, 1),
      0 0 50px rgba(255, 255, 255, 0.6), 0 0 75px rgba(255, 255, 255, 0.3);
    transform: scale(1.02);
  }

  .main-header .navbar-brand img {
    height: 28px !important;
    width: auto;
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.6))
      drop-shadow(0 0 30px rgba(255, 255, 255, 0.4));
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .main-header .navbar-brand img:hover {
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.8))
      drop-shadow(0 0 40px rgba(255, 255, 255, 0.5));
    transform: scale(1.05);
  }

  .main-header .datetime-weather-widget {
    display: none;
  }

  .main-header .navbar-nav {
    display: none;
  }

  /* Bottom header nằm bên phải logo */
  .bottom-header {
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    flex: 1 1 auto;
    margin-left: 0.75rem;
  }

  .bottom-header .mobile-nav-item {
    display: flex !important;
    font-size: 0.7rem;
    min-width: 0;
    flex: 1 1 0;
    padding: 0.3rem 0.25rem;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    color: #fff;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    text-align: center;
  }

  .bottom-header .mobile-nav-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
      90deg,
      transparent,
      rgba(255, 255, 255, 0.1),
      transparent
    );
    transition: left 0.5s;
  }

  .bottom-header .mobile-nav-item:hover::before {
    left: 100%;
  }

  .bottom-header .mobile-nav-item:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  }

  .bottom-header .mobile-nav-item i {
    font-size: 0.9rem;
    display: block;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .bottom-header .mobile-nav-item:hover i {
    transform: scale(1.1);
    color: #fff;
  }

  .bottom-header .mobile-nav-item .nav-text {
    font-size: 0.6rem;
    line-height: 1.2;
    font-weight: 600;
    text-align: center;
    display: block;
    width: 100%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .bottom-header .mobile-nav-item:hover .nav-text {
    color: #fff;
    transform: scale(1.05);
  }
}

/* VERY SMALL MOBILE (dưới 480px) */
@media (max-width: 479.98px) {
  .top-header { display: none !important; }

  .main-header {
    justify-content: center !important;
  }

  .main-header .header-left {
    justify-content: center !important;
  }

  .main-header .navbar-brand {
    font-size: 1.3rem !important;
    text-align: center;
    font-weight: 900 !important;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5),
      0 0 20px rgba(255, 255, 255, 0.3), 0 0 30px rgba(255, 255, 255, 0.1);
    letter-spacing: 0.5px;
    font-family: "Arial Black", Arial, sans-serif;
  }

  .main-header {
    padding: 0.45rem 0 !important;
  }

  .main-header .navbar-brand {
    font-size: 1.1rem !important;
  }

  .main-header .navbar-brand img {
    height: 24px !important;
    width: auto;
    filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.5))
      drop-shadow(0 0 24px rgba(255, 255, 255, 0.3));
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .main-header .navbar-brand img:hover {
    filter: drop-shadow(0 0 16px rgba(255, 255, 255, 0.7))
      drop-shadow(0 0 32px rgba(255, 255, 255, 0.4));
    transform: scale(1.05);
  }

  .bottom-header {
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    gap: 0.3rem;
  }

  .bottom-header .mobile-nav-item {
    display: flex !important;
    font-size: 0.65rem;
    min-width: 0;
    flex: 1 1 0;
    padding: 0.3rem 0.25rem;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.15rem;
    color: #fff;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    text-align: center;
  }

  .bottom-header .mobile-nav-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
      90deg,
      transparent,
      rgba(255, 255, 255, 0.1),
      transparent
    );
    transition: left 0.5s;
  }

  .bottom-header .mobile-nav-item:hover::before {
    left: 100%;
  }

  .bottom-header .mobile-nav-item:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.3);
  }

  .bottom-header .mobile-nav-item i {
    font-size: 0.8rem;
    display: block;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .bottom-header .mobile-nav-item:hover i {
    transform: scale(1.1);
    color: #fff;
  }

  .bottom-header .mobile-nav-item .nav-text {
    font-size: 0.55rem;
    line-height: 1.2;
    font-weight: 600;
    text-align: center;
    display: block;
    width: 100%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .bottom-header .mobile-nav-item:hover .nav-text {
    color: #fff;
    transform: scale(1.05);
  }
}

/* ===== ANIMATION EFFECTS ===== */
.top-header .contact-item,
.top-header .social-link,
.bottom-header .mobile-nav-item {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.top-header .contact-item:hover,
.top-header .social-link:hover,
.bottom-header .mobile-nav-item:hover {
  transform: translateY(-2px);
}

/* ===== SPECIAL ANIMATIONS ===== */
@keyframes pulseGlow {
  0%,
  100% {
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.2);
  }
  50% {
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.4),
      0 0 30px rgba(255, 255, 255, 0.2);
  }
}

@keyframes slideInFromLeft {
  0% {
    opacity: 0;
    transform: translateX(-30px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInFromRight {
  0% {
    opacity: 0;
    transform: translateX(30px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Animation cho mobile nav items */
.bottom-header .mobile-nav-item:nth-child(1) {
  animation: slideInFromRight 0.6s ease-out 0.1s both;
}
.bottom-header .mobile-nav-item:nth-child(2) {
  animation: slideInFromRight 0.6s ease-out 0.2s both;
}
.bottom-header .mobile-nav-item:nth-child(3) {
  animation: slideInFromRight 0.6s ease-out 0.3s both;
}
.bottom-header .mobile-nav-item:nth-child(4) {
  animation: slideInFromRight 0.6s ease-out 0.4s both;
}

/* Animation cho logo */
.main-header .navbar-brand {
  animation: slideInFromLeft 0.8s ease-out;
}

/* Pulse effect cho active nav item */
.bottom-header .mobile-nav-item:active {
  animation: pulseGlow 0.3s ease-out;
}

/* Logo glow animation */
@keyframes logoGlow {
  0%,
  100% {
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.4),
      0 0 20px rgba(255, 255, 255, 0.2), 0 0 30px rgba(255, 255, 255, 0.1);
  }
  50% {
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.6),
      0 0 30px rgba(255, 255, 255, 0.4), 0 0 45px rgba(255, 255, 255, 0.2);
  }
}

@keyframes logoImageGlow {
  0%,
  100% {
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.3))
      drop-shadow(0 0 16px rgba(255, 255, 255, 0.2));
  }
  50% {
    filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.5))
      drop-shadow(0 0 24px rgba(255, 255, 255, 0.3));
  }
}

/* Áp dụng animation cho logo */
.main-header .navbar-brand {
  animation: logoGlow 3s ease-in-out infinite;
}

.main-header .navbar-brand img {
  animation: logoImageGlow 3s ease-in-out infinite;
}

/* ===== ACCESSIBILITY ===== */
.top-header .contact-item:focus,
.top-header .social-link:focus,
.bottom-header .mobile-nav-item:focus {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {
  .top-header,
  .bottom-header {
    display: none !important;
  }

  .main-header {
    background-color: #000 !important;
    color: #fff !important;
  }
}

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
  .top-header {
    background-color: #0a0a0a;
    border-bottom-color: #444;
  }
}

/* ===== HIGH CONTRAST MODE ===== */
@media (prefers-contrast: high) {
  .top-header .contact-item,
  .top-header .social-link,
  .bottom-header .mobile-nav-item {
    border: 1px solid #fff;
  }

  .top-header .contact-item:hover,
  .top-header .social-link:hover,
  .bottom-header .mobile-nav-item:hover {
    background-color: #fff;
    color: #000;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  .top-header .contact-item,
  .top-header .social-link,
  .bottom-header .mobile-nav-item,
  .main-header .navbar-brand {
    transition: none;
  }

  .top-header .contact-item:hover,
  .top-header .social-link:hover,
  .bottom-header .mobile-nav-item:hover,
  .main-header .navbar-brand:hover {
    transform: none;
  }

  .bottom-header .mobile-nav-item,
  .main-header .navbar-brand {
    animation: none;
  }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
.bottom-header .mobile-nav-item:focus,
.top-header .contact-item:focus,
.top-header .social-link:focus {
  outline: 2px solid #fff;
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.2);
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.main-header,
.bottom-header,
.top-header {
  will-change: transform;
}

.bottom-header .mobile-nav-item,
.top-header .contact-item,
.top-header .social-link {
  will-change: transform, box-shadow;
}

/* ===== LOADING STATES ===== */
.bottom-header .mobile-nav-item.loading {
  opacity: 0.6;
  pointer-events: none;
}

.bottom-header .mobile-nav-item.loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Hide any generic Topbar component if present */
.topbar { display: none !important; }

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}