/* Base Styles Enhancement */
body {
  font-family: 'Inter', sans-serif;
  background-color: #f8f9fa;
  color: #212529;
  scroll-behavior: smooth;
  overflow-x: hidden;
  transition: background-color 0.5s ease;
}

/* Smooth Scrolling Enhancement */
html {
  scroll-behavior: smooth;
  --scroll-behavior: smooth;
}

/* Color Variables for Consistency */
:root {
  --primary: #112D4E;
  --secondary: #3F72AF;
  --accent: #FBAE3C;
  --accent-hover: #f8a01c;
  --info: #38B6FF;
  --light: #f8f9fa;
  --dark: #212529;
  --transition-bezier: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--primary);
  transition: color 0.3s ease, transform 0.3s var(--transition-bezier);
}

h1 {
  position: relative;
  display: inline-block;
}

h1:after {
  content: '';
  position: absolute;
  width: 60%;
  height: 4px;
  bottom: -10px;
  left: 20%;
  background: linear-gradient(90deg, var(--info), var(--accent));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.4s var(--transition-bezier);
}

h1:hover:after {
  transform: scaleX(1);
}

/* Enhanced Navbar */
.navbar {
  background-color: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.4s ease;
}

.navbar.scrolled {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  padding-top: 0.5rem !important;
  padding-bottom: 0.5rem !important;
}

.navbar-brand {
  transition: transform 0.3s var(--transition-bezier);
}

.navbar-brand:hover {
  transform: scale(1.05);
}

.navbar-brand span {
  color: var(--accent);
  background: linear-gradient(45deg, var(--accent), #ff8c00);
  background-clip: text;
  -webkit-background-clip: text;
  animation: colorShift 3s infinite alternate;
}

@keyframes colorShift {
  0% { color: transparent; background-position: 0% 50%; }
  100% { color: transparent; background-position: 100% 50%; }
}

.nav-link {
  color: var(--primary);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 1rem;
  margin: 0 0.25rem;
  transition: color 0.3s ease;
}

.nav-link:before {
  content: '';
  position: absolute;
  width: 0;
  height: 3px;
  bottom: 0;
  left: 50%;
  background: linear-gradient(to right, var(--info), var(--accent));
  border-radius: 5px;
  transform-origin: center;
  transition: width 0.3s ease, left 0.3s ease;
}

.nav-link:hover:before {
  width: 80%;
  left: 10%;
}

.nav-link:hover {
  color: var(--accent);
}

/* Enhanced Section Styling */
section {
  padding-top: 80px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  transition: background-color 0.5s ease;
}

section:before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 182, 255, 0.03) 0%, rgba(255, 255, 255, 0) 70%);
  animation: float 15s infinite ease-in-out;
  z-index: -1;
}

section:nth-child(odd):before {
  top: -100px;
  left: -100px;
}

section:nth-child(even):before {
  bottom: -100px;
  right: -100px;
}

section:after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(251, 174, 60, 0.03) 0%, rgba(255, 255, 255, 0) 70%);
  animation: float 20s infinite ease-in-out reverse;
  z-index: -1;
}

section:nth-child(odd):after {
  bottom: -50px;
  right: 10%;
}

section:nth-child(even):after {
  top: -50px;
  left: 10%;
}

@keyframes float {
  0% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(15px, -15px) rotate(5deg); }
  50% { transform: translate(30px, 5px) rotate(10deg); }
  75% { transform: translate(15px, 15px) rotate(5deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

.text-primary {
  color: var(--primary) !important;
}

.text-info {
  color: var(--info) !important;
}

/* Enhanced Button Styles */
.btn {
  border-radius: 50px;
  padding: 0.7rem 1.5rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
  z-index: 1;
  transition: all 0.4s var(--transition-bezier);
}

.btn:before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(255,255,255,0.2), rgba(255,255,255,0));
  transition: all 0.6s ease;
  z-index: -1;
}

.btn:hover:before {
  left: 100%;
}

.btn-dark {
  background-color: var(--primary);
  border: none;
  box-shadow: 0 5px 15px rgba(17, 45, 78, 0.2);
}

.btn-dark:hover {
  background-color: var(--secondary);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(63, 114, 175, 0.3);
}

.btn-outline-primary {
  border: 2px solid var(--secondary);
  color: var(--secondary);
  background-color: transparent;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.btn-outline-primary:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background-color: var(--secondary);
  transition: all 0.4s var(--transition-bezier);
  z-index: -1;
}

.btn-outline-primary:hover {
  color: white;
  border-color: var(--secondary);
}

.btn-outline-primary:hover:before {
  width: 100%;
}

.btn-outline-info {
  border: 2px solid var(--info);
  color: var(--info);
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.btn-outline-info:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background-color: var(--info);
  transition: all 0.4s var(--transition-bezier);
  z-index: -1;
}

.btn-outline-info:hover {
  color: white;
  border-color: var(--info);
  background-color: transparent;
}

.btn-outline-info:hover:before {
  width: 100%;
}

/* Enhanced FAQ Styling */
.faq-item {
  border: 1px solid #dee2e6;
  padding: 18px;
  margin-bottom: 15px;
  border-radius: 12px;
  background-color: #fff;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.03);
  cursor: pointer;
  transition: all 0.4s var(--transition-bezier);
  position: relative;
  overflow: hidden;
}

.faq-item:before {
  content: '';
  position: absolute;
  width: 5px;
  height: 0;
  top: 0;
  left: 0;
  background: linear-gradient(to bottom, var(--info), var(--accent));
  transition: height 0.4s var(--transition-bezier);
}

.faq-item:hover {
  transform: translateX(5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  background-color: #f9f9f9;
}

.faq-item:hover:before {
  height: 100%;
}

.faq-item strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--primary);
  position: relative;
  padding-left: 12px;
  transition: color 0.3s ease, transform 0.3s ease;
}

.faq-item:hover strong {
  transform: translateX(3px);
  color: var(--secondary);
}

.faq-answer {
  font-size: 0.95rem;
  color: #555;
  position: relative;
  padding-left: 12px;
  transform-origin: top;
  transition: all 0.3s ease;
}

/* Enhanced Images */
img {
  border-radius: 15px;
  transition: transform 0.5s var(--transition-bezier), box-shadow 0.5s ease;
}

img:hover {
  transform: scale(1.05) translateY(-5px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

img.rounded-circle {
  border-radius: 50%;
  transition: transform 0.5s var(--transition-bezier), box-shadow 0.5s ease;
}

img.rounded-circle:hover {
  transform: scale(1.08);
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* Welcome Section Enhancement */
section.py-5.text-center {
  background: linear-gradient(135deg, rgba(248,249,250,1) 0%, rgba(240,248,255,1) 100%);
  position: relative;
}

/* Danh mục sản phẩm Enhancement */
.hover-shadow {
  position: relative;
  transition: all 0.5s var(--transition-bezier);
  overflow: hidden;
}

.hover-shadow:before {
  content: '';
  position: absolute;
  width: 100%;
  height: 0;
  left: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(56, 182, 255, 0.05), rgba(255, 255, 255, 0));
  transition: height 0.5s var(--transition-bezier);
  z-index: -1;
}

.hover-shadow:hover {
  box-shadow: 0 15px 30px rgba(0,0,0,0.1);
  transform: translateY(-10px);
}

.hover-shadow:hover:before {
  height: 100%;
}

/* Banner Style Enhancement */
section.py-5.text-center.bg-info.bg-opacity-10 {
  background: linear-gradient(135deg, rgba(231, 245, 254, 1) 0%, rgba(207, 237, 255, 1) 100%);
  overflow: hidden;
  position: relative;
}

section.py-5.text-center.bg-info.bg-opacity-10:before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  top: -250px;
  right: -250px;
  background: radial-gradient(circle, rgba(56, 182, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
  border-radius: 50%;
  animation: pulse 15s infinite alternate ease-in-out;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 0.8; }
  100% { transform: scale(1); opacity: 0.5; }
}

/* Products Cards Enhancement */
.product-card {
  border-radius: 20px !important;
  overflow: hidden;
  transition: all 0.5s var(--transition-bezier) !important;
  background: #ffffff;
  border: none !important;
  position: relative;
  z-index: 1;
}

.product-card:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--info), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--transition-bezier);
  z-index: 2;
}

.product-card:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0;
  background: linear-gradient(to top, rgba(56, 182, 255, 0.03), rgba(255, 255, 255, 0));
  transition: height 0.5s var(--transition-bezier);
  z-index: -1;
}

.product-card:hover {
  transform: translateY(-15px) !important;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12) !important;
}

.product-card:hover:before {
  transform: scaleX(1);
}

.product-card:hover:after {
  height: 100%;
}

.card-img-top-wrapper {
  background: linear-gradient(145deg, #f9f9f9, #f0f0f0) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.card-img-top-wrapper:before {
  content: '';
  position: absolute;
  width: 150%;
  height: 150%;
  top: -25%;
  left: -25%;
  background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0) 60%);
  transform: scale(0);
  opacity: 0;
  transition: transform 0.8s var(--transition-bezier), opacity 0.8s var(--transition-bezier);
  z-index: 2;
}

.product-card:hover .card-img-top-wrapper:before {
  transform: scale(1);
  opacity: 1;
}

.card-img-top-wrapper img {
  transition: transform 0.6s var(--transition-bezier) !important;
  z-index: 3;
  position: relative;
}

.product-card:hover .card-img-top-wrapper img {
  transform: scale(1.12) translateY(-3px) !important;
}

/* Card Title Enhancement */
.card-title {
  position: relative;
  display: inline-block;
  padding-bottom: 5px;
  transition: all 0.3s ease;
}

.card-title:after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background: linear-gradient(90deg, var(--info), var(--accent));
  transition: all 0.4s var(--transition-bezier);
}

.product-card:hover .card-title {
  color: var(--info);
}

.product-card:hover .card-title:after {
  width: 80%;
  left: 10%;
}

/* Prices Enhancement */
.text-danger.fw-bold {
  transition: all 0.4s var(--transition-bezier);
  display: inline-block;
}

.product-card:hover .text-danger.fw-bold {
  transform: scale(1.1) translateY(-2px);
  text-shadow: 0 3px 6px rgba(251, 174, 60, 0.2);
}

/* Enhanced Add to Cart Button */
.add-to-cart-btn {
  background: linear-gradient(45deg, var(--secondary), var(--info)) !important;
  border: none !important;
  position: relative;
  overflow: hidden;
  transition: all 0.5s var(--transition-bezier) !important;
  box-shadow: 0 5px 15px rgba(63, 114, 175, 0.2);
  transform: translateY(5px);
  opacity: 0.9;
}

.add-to-cart-btn:before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, var(--accent), #ff8c00);
  transition: all 0.5s ease;
  z-index: -1;
}

.add-to-cart-btn:hover {
  transform: translateY(-3px) scale(1.05) !important;
  box-shadow: 0 10px 25px rgba(251, 174, 60, 0.3) !important;
  color: white !important;
}

.add-to-cart-btn:hover:before {
  left: 0;
}

.product-card:hover .add-to-cart-btn {
  transform: translateY(0);
  opacity: 1;
}

/* Footer Enhancement */
footer {
  background: linear-gradient(135deg, #0B132B 0%, #1c2e4a 100%);
  position: relative;
  overflow: hidden;
}

footer:before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(63, 114, 175, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
  top: -150px;
  right: -150px;
  animation: slowFloat 20s infinite alternate ease-in-out;
}

footer:after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(251, 174, 60, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
  bottom: -100px;
  left: 10%;
  animation: slowFloat 15s infinite alternate-reverse ease-in-out;
}

@keyframes slowFloat {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 30px); }
}

footer .row > div {
  position: relative;
  z-index: 1;
}

footer a {
  position: relative;
  display: inline-block;
  padding: 3px 0;
  transition: all 0.3s ease;
}

footer a:after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: 0;
  left: 0;
  background-color: var(--accent);
  transition: width 0.3s ease;
}

footer a:hover {
  color: var(--accent) !important;
  transform: translateX(3px);
}

footer a:hover:after {
  width: 100%;
}

/* Enhanced Form Elements */
.form-control {
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  padding: 0.75rem;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
}

.form-control:focus {
  border-color: var(--info);
  box-shadow: 0 0 0 3px rgba(56, 182, 255, 0.15);
  transform: translateY(-2px);
}

/* Mini Cart Enhancement */
#cart-mini {
  border-radius: 20px !important;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2) !important;
  border: none !important;
  transform: translateY(50px) scale(0.9);
  opacity: 0;
  transition: all 0.5s var(--transition-bezier) !important;
  background: linear-gradient(to bottom right, #fff, #f9f9f9);
}

#cart-mini.show-cart {
  transform: translateY(0) scale(1);
  opacity: 1;
}

#cart-mini:before {
  content: '';
  position: absolute;
  width: 100%;
  height: 5px;
  top: 0;
  left: 0;
  background: linear-gradient(90deg, var(--secondary), var(--info));
}

#cart-items {
  max-height: 250px;
  overflow-y: auto;
  padding: 5px;
  margin: 10px 0;
  border-radius: 10px;
  background-color: rgba(248, 249, 250, 0.5);
  scrollbar-width: thin;
  scrollbar-color: var(--info) #f1f1f1;
}

#cart-items::-webkit-scrollbar {
  width: 6px;
}

#cart-items::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

#cart-items::-webkit-scrollbar-thumb {
  background: var(--info);
  border-radius: 10px;
}

#cart-items .list-group-item {
  padding: 10px 15px;
  border-radius: 10px;
  margin-bottom: 8px;
  border: none;
  background-color: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  transform: translateX(0);
}

#cart-items .list-group-item:hover {
  background-color: #f8f9fa;
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Page Transitions */
.fade-in {
  animation: fadeIn 1s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Select Dropdown Enhancement */
.select-donvi {
  border-radius: 10px !important;
  padding: 8px 12px !important;
  border: 1px solid rgba(0, 0, 0, 0.1) !important;
  background-color: white;
  transition: all 0.3s ease !important;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
  background-image: linear-gradient(45deg, transparent 50%, var(--accent) 50%), 
                    linear-gradient(135deg, var(--accent) 50%, transparent 50%);
  background-position: calc(100% - 20px) calc(1em + 2px), 
                       calc(100% - 15px) calc(1em + 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.select-donvi:focus, .select-donvi:hover {
  box-shadow: 0 5px 15px rgba(56, 182, 255, 0.15) !important;
  border-color: var(--info) !important;
  transform: translateY(-2px);
}

/* Scroll To Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, var(--secondary), var(--info));
  color: white;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s var(--transition-bezier);
  box-shadow: 0 5px 15px rgba(63, 114, 175, 0.3);
  z-index: 999;
}

.scroll-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(63, 114, 175, 0.4);
}

/* Blog Cards Enhancement */
.card.h-100.shadow-sm.border-0 {
  transition: all 0.5s var(--transition-bezier);
  border-radius: 16px !important;
  overflow: hidden;
}

.card.h-100.shadow-sm.border-0:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1) !important;
}

.card.h-100.shadow-sm.border-0 img {
  transition: all 0.6s var(--transition-bezier);
}

.card.h-100.shadow-sm.border-0:hover img {
  transform: scale(1.1);
}

.card.h-100.shadow-sm.border-0 .card-body {
  position: relative;
  z-index: 1;
  transition: all 0.3s ease;
}

.card.h-100.shadow-sm.border-0:before {
  content: '';
  position: absolute;
  width: 100%;
  height: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(to top, rgba(248,249,250,0.8), rgba(255,255,255,0));
  transition: height 0.5s var(--transition-bezier);
  z-index: 0;
}

.card.h-100.shadow-sm.border-0:hover:before {
  height: 100%;
}

/* Page Load Animation */
@keyframes pageLoad {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

.container {
  animation: pageLoad 0.8s var(--transition-bezier);
}

/* Responsive Enhancements */
@media (max-width: 992px) {
  h1, h2 {
    font-size: calc(1.5rem + 1.5vw);
  }
  
  section {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
  
  .hover-shadow:hover {
    transform: translateY(-5px);
  }
}

@media (max-width: 768px) {
  section {
    padding-top: 40px;
    padding-bottom: 40px;
  }
  
  .product-card:hover {
    transform: translateY(-8px) !important;
  }
  
  #cart-mini {
    width: 90%;
    left: 5%;
    right: 5%;
  }
}

/* Animation for Page Elements on Scroll */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--transition-bezier);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero Banner Animation */
.py-5[style*="background-color: #e6f9fd"] {
  background: linear-gradient(135deg, #e6f9fd 0%, #c7eeff 100%);
  position: relative;
  overflow: hidden;
}

.py-5[style*="background-color: #e6f9fd"]::before {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  top: -30px;
  left: -30px;
  animation: float 18s infinite ease-in-out;
}

.py-5[style*="background-color: #e6f9fd"]::after {
  content: "";
  position: absolute;
  width: 150px;
  height: 150px;
  background: rgba(56, 182, 255, 0.2);
  border-radius: 50%;
  bottom: -20px;
  right: 10%;
  animation: float 15s infinite ease-in-out reverse;
}

/* Section Animation Delays */
.row > div:nth-child(1) .animate-on-scroll { transition-delay: 0s; }
.row > div:nth-child(2) .animate-on-scroll { transition-delay: 0.1s; }