/* ==========================================
   AST FINANCIAL & ACCOUNTING SERVICES - MAIN STYLESHEET
   ========================================== */

/* ==========================================
   1. CSS VARIABLES & ROOT SETTINGS - UPDATED BLUE THEME
   ========================================== */
:root {
  --primary-color: #22c55e; /* Xanh lá chính */
  --primary-light: #4ade80; /* Xanh lá sáng */
  --primary-dark: #16a34a; /* Xanh lá đậm */
  --secondary-color: #f0fdf4; /* Nền xanh lá nhạt */
  --accent-color: #10b981; /* Màu nhấn xanh lá */
  --text-dark: #1a365d;
  --text-light: #4a5568;
  --white: #ffffff;
  --blue-50: #f0fdf4; /* Đổi thành xanh lá nhạt */
  --blue-100: #dcfce7; /* Đổi thành xanh lá nhạt hơn */
  --blue-500: #22c55e; /* Đổi thành xanh lá */
  --blue-600: #16a34a; /* Đổi thành xanh lá đậm */
  --blue-700: #15803d; /* Đổi thành xanh lá rất đậm */
  --gradient: linear-gradient(135deg, #22c55e 0%, #10b981 100%);
  --gradient-hover: linear-gradient(135deg, #10b981 0%, #22c55e 100%);
  --gradient-light: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  --shadow-light: 0 5px 25px rgba(34, 197, 94, 0.08);
  --shadow-medium: 0 10px 40px rgba(34, 197, 94, 0.1);
  --shadow-heavy: 0 20px 60px rgba(34, 197, 94, 0.15);
  --border-radius: 15px;
  --border-radius-large: 20px;
  --transition: all 0.3s ease;
  --font-primary: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

/* ==========================================
   2. RESET & BASE STYLES
   ========================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--text-dark);
  overflow-x: hidden;
  background-color: #ffffff;
}

/* ==========================================
   3. TYPOGRAPHY
   ========================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
}
h2 {
  font-size: 2.5rem;
}
h3 {
  font-size: 2rem;
}
h4 {
  font-size: 1.5rem;
}
h5 {
  font-size: 1.25rem;
}
h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.6;
}

/* ==========================================
   4. NAVIGATION STYLES
   ========================================== */
.navbar {
  background: white;
  box-shadow: var(--shadow-light);
  padding: 0.8rem 0;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1030;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-medium);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  font-size: 2rem;
  font-weight: bold;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: var(--transition);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-brand:hover {
  background: var(--gradient-hover);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

/* Logo hình ảnh */
.navbar-logo {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid transparent;
  transition: var(--transition);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  margin-right: 10px;
  animation: logoIntro 1s ease-out;
}

.navbar-logo:hover {
  border-color: var(--primary-color);
  transform: scale(1.05);
  box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

@keyframes logoIntro {
  0% {
    transform: scale(0) rotate(180deg);
    opacity: 0;
  }
  50% {
    transform: scale(1.1) rotate(90deg);
    opacity: 0.8;
  }
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 1;
  }
}

/* Nav links */
.navbar-nav .nav-link {
  color: var(--text-dark) !important;
  font-weight: 500;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem !important;
  transition: var(--transition);
  position: relative;
}

.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background: var(--primary-color);
  transition: var(--transition);
  border-radius: 1px;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 80%;
  left: 10%;
}

.navbar-nav .nav-link:hover {
  color: var(--primary-color) !important;
}

/* Dropdown menu */
.dropdown-menu {
  background-color: white;
  border: none;
  box-shadow: var(--shadow-medium);
  border-radius: 0.5rem;
}

.dropdown-item {
  color: var(--text-dark) !important;
  transition: var(--transition);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background-color: rgba(44, 90, 160, 0.1);
  color: var(--primary-color) !important;
}

/* Navbar toggler */
.navbar-toggler {
  border: 1px solid rgba(44, 90, 160, 0.5);
  padding: 0.25rem 0.5rem;
  transition: var(--transition);
}

.navbar-toggler:focus {
  box-shadow: none;
}

.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%2844, 90, 160, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-collapse {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  margin-left: 2rem;
}

.navbar-nav {
  display: flex;
  align-items: center;
  margin: 0 auto;
}

/* ==========================================
   5. HERO SECTION STYLES
   ========================================== */

/* ==========================================
   5. HERO SECTION STYLES - CẬP NHẬT
   ========================================== */

.hero {
  color: white;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

/* Ảnh nền hero */
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.4) contrast(1.1);
  transition: var(--transition);
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* background: #0f9c5b; */
  z-index: 1;
}

/* Hiệu ứng parallax cho ảnh nền */
.hero-bg-image {
  transform: scale(1.1);
  animation: heroBackgroundZoom 20s ease-in-out infinite alternate;
}

@keyframes heroBackgroundZoom {
  0% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1.15);
  }
}

/* Hiệu ứng động cho overlay */
.hero-bg-overlay {
  animation: overlayPulse 8s ease-in-out infinite alternate;
}

@keyframes overlayPulse {
  0% {
    opacity: 0.8;
  }
  100% {
    opacity: 0.6;
  }
}

/* Container và content */
.hero .container {
  position: relative;
  z-index: 3;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-right: 20px;
  backdrop-filter: blur(2px);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-tagline {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  color: white;
  font-weight: 500;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.text-highlight {
  background: rgba(255, 255, 255, 0.2);
  padding: 5px 12px;
  border-radius: 25px;
  display: inline-block;
  margin-top: 5px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.hero-content p {
  color: white;
  margin-bottom: 1.5rem;
  line-height: 1.8;
  text-align: justify;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.hero .lead {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  opacity: 0.95;
  max-width: 100%;
}

/* Hero image styles - giữ nguyên */
.hero-image {
  text-align: center;
  position: relative;
  z-index: 4;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-photo-container {
  position: relative;
  width: 350px;
  height: 400px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  transition: var(--transition);
  border: 4px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.hero-photo-container:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: var(--transition);
  filter: brightness(1.1) contrast(1.1);
}

.hero-photo-container:hover .hero-photo {
  transform: scale(1.05);
  filter: brightness(1.2) contrast(1.2);
}

.hero-photo-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.2) 0%,
    rgba(118, 75, 162, 0.2) 100%
  );
  opacity: 0;
  transition: var(--transition);
}

.hero-photo-container:hover .hero-photo-overlay {
  opacity: 1;
}

/* Hiệu ứng viền sáng */
.hero-photo-container::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(255, 255, 255, 0.2) 100%
  );
  border-radius: 22px;
  z-index: -1;
  opacity: 0;
  transition: var(--transition);
}

.hero-photo-container:hover::before {
  opacity: 1;
  animation: borderGlow 2s ease-in-out infinite alternate;
}

@keyframes borderGlow {
  0% {
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
  }
  100% {
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.8);
  }
}

/* Hiệu ứng floating */
.hero-photo-container {
  animation: heroPhotoFloat 6s ease-in-out infinite;
}

@keyframes heroPhotoFloat {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-15px);
  }
}

.hero-photo-container:hover {
  animation-play-state: paused;
}

/* ==========================================
   RESPONSIVE CHO HERO SECTION
   ========================================== */

@media (max-width: 1199.98px) {
  .hero h1 {
    font-size: 3rem;
  }

  .hero-content {
    padding: 1.5rem;
  }

  .hero-photo-container {
    width: 320px;
    height: 360px;
  }
}

@media (max-width: 991.98px) {
  .hero {
    min-height: auto;
    padding: 100px 0 80px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-tagline {
    font-size: 1.2rem;
  }

  .hero-content {
    margin-bottom: 3rem;
    padding: 1.5rem;
  }

  .hero-photo-container {
    width: 300px;
    height: 340px;
    margin: 2rem auto 0;
  }
}

@media (max-width: 767.98px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-tagline {
    font-size: 1.1rem;
  }

  .hero .lead {
    font-size: 1.1rem;
  }

  .hero-content {
    padding: 1rem;
    margin-bottom: 2rem;
  }

  .hero-photo-container {
    width: 280px;
    height: 320px;
    border-radius: 15px;
    border-width: 3px;
  }

  .hero-photo-container::before {
    border-radius: 17px;
  }
}

@media (max-width: 575.98px) {
  .hero {
    padding: 80px 0 60px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-tagline {
    font-size: 1rem;
  }

  .hero .lead {
    font-size: 1rem;
  }

  .hero-content {
    padding: 1rem;
  }

  .hero-photo-container {
    width: 250px;
    height: 280px;
    border-radius: 12px;
    border-width: 2px;
  }

  .hero-photo-container::before {
    border-radius: 14px;
  }
}

/* Hiệu ứng khi scroll */
.hero.scrolled .hero-bg-image {
  transform: scale(1.2);
  filter: brightness(0.3) contrast(1.2);
}

.hero.scrolled .hero-bg-overlay {
  opacity: 0.9;
}

/* ==========================================
   6. BUTTON STYLES
   ========================================== */
.btn-custom {
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid white;
  color: white;
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  backdrop-filter: blur(10px);
  text-decoration: none;
  display: inline-block;
  position: relative;
  overflow: hidden;
}

.btn-custom::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s;
}

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

.btn-custom:hover {
  background: white;
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  text-decoration: none;
}

.btn-custom:active {
  transform: translateY(0);
}

/* ==========================================
   7. STATS SECTION STYLES
   ========================================== */
.stats {
  background: var(--secondary-color);
  padding: 80px 0;
  position: relative;
}

.stats::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-color),
    transparent
  );
}

.stat-item {
  text-align: center;
  padding: 2rem;
  transition: var(--transition);
  position: relative;
}

.stat-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--gradient);
  transition: var(--transition);
  border-radius: 2px;
}

.stat-item:hover::before {
  width: 60%;
  left: 20%;
}

.stat-item:hover {
  transform: translateY(-5px);
}

.stat-number {
  font-size: 3rem;
  font-weight: bold;
  color: var(--primary-color);
  display: block;
  margin-bottom: 0.5rem;
  position: relative;
}

.stat-number::after {
  content: "+";
  font-size: 2rem;
  opacity: 0.7;
}

.stat-label {
  font-size: 1.1rem;
  color: var(--text-light);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================
   8. SERVICES SECTION STYLES
   ========================================== */
.services {
  background: var(--secondary-color);
  padding: 100px 0;
  position: relative;
}

.services::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(
      circle at 20% 80%,
      rgba(102, 126, 234, 0.05) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(118, 75, 162, 0.05) 0%,
      transparent 50%
    );
}

.services .container {
  position: relative;
  z-index: 1;
}

.service-card {
  background: white;
  padding: 2.5rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  height: 100%;
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: var(--transition);
}

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

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-medium);
  border-color: rgba(102, 126, 234, 0.1);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
  color: white;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-icon::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-hover);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotateY(180deg);
}

.service-card:hover .service-icon::before {
  opacity: 1;
}

.service-card h4 {
  color: var(--text-dark);
  margin-bottom: 1rem;
  transition: var(--transition);
}

.service-card:hover h4 {
  color: var(--primary-color);
}

.service-card p {
  color: var(--text-light);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* ==========================================
   9. ABOUT SECTION STYLES
   ========================================== */
.about-section {
  padding: 100px 0;
  background: #f8f9fa;
  position: relative;
  overflow: hidden;
}

.about-section::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.1) 0%,
    rgba(118, 75, 162, 0.1) 100%
  );
  z-index: 0;
}

.about-section::after {
  content: "";
  position: absolute;
  bottom: -50px;
  left: -50px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.1) 0%,
    rgba(118, 75, 162, 0.1) 100%
  );
  z-index: 0;
}

.about-content {
  position: relative;
  z-index: 1;
  padding: 2rem;
  background: white;
  border-radius: var(--border-radius-large);
  box-shadow: var(--shadow-light);
  height: 100%;
  transition: var(--transition);
}

.about-content:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-5px);
}

.about-content h3 {
  color: var(--primary-color);
  margin-bottom: 1.2rem;
  font-weight: 600;
  font-size: 1.8rem;
  border-bottom: 2px solid rgba(44, 90, 160, 0.1);
  padding-bottom: 0.5rem;
}

.about-content p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.core-values {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.core-value-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.core-value-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  background: rgba(44, 90, 160, 0.1);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
  transition: var(--transition);
}

.core-value-item:hover i {
  background: var(--primary-color);
  color: white;
  transform: scale(1.1);
}

.core-value-item h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.core-value-item p {
  margin-bottom: 0;
  font-size: 0.95rem;
}
/* ==========================================
   ABOUT SECTION IMAGE STYLES
   ========================================== */

.about-image-container {
  position: relative;
  max-width: 800px;
  margin: 2rem auto 4rem;
  border-radius: var(--border-radius-large);
  overflow: hidden;
  box-shadow: var(--shadow-heavy);
  transition: var(--transition);
  cursor: pointer;
}

.about-image-container:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.2);
}

.about-main-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  object-position: center;
  transition: var(--transition);
  filter: brightness(1) contrast(1.1);
}

.about-image-container:hover .about-main-image {
  transform: scale(1.05);
  filter: brightness(1.1) contrast(1.2);
}

/* Overlay hiệu ứng */
.about-image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(44, 90, 160, 0.8) 0%,
    rgba(102, 126, 234, 0.8) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.about-image-container:hover .about-image-overlay {
  opacity: 1;
}

.about-image-content {
  text-align: center;
  color: white;
  transform: translateY(20px);
  transition: var(--transition);
}

.about-image-container:hover .about-image-content {
  transform: translateY(0);
}

.play-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  display: block;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.overlay-text {
  font-size: 1.2rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Hiệu ứng viền gradient */
.about-image-container::before {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  background: var(--gradient);
  border-radius: calc(var(--border-radius-large) + 3px);
  z-index: -1;
  opacity: 0;
  transition: var(--transition);
}

.about-image-container:hover::before {
  opacity: 1;
  animation: borderRotate 3s linear infinite;
}

@keyframes borderRotate {
  0% {
    background: linear-gradient(0deg, #667eea 0%, #764ba2 100%);
  }
  25% {
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  }
  50% {
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
  }
  75% {
    background: linear-gradient(270deg, #667eea 0%, #764ba2 100%);
  }
  100% {
    background: linear-gradient(360deg, #667eea 0%, #764ba2 100%);
  }
}

/* ==========================================
   RESPONSIVE CHO ABOUT IMAGE
   ========================================== */

@media (max-width: 991.98px) {
  .about-image-container {
    max-width: 600px;
    margin: 1.5rem auto 3rem;
  }

  .about-main-image {
    height: 350px;
  }

  .play-icon {
    font-size: 3.5rem;
  }

  .overlay-text {
    font-size: 1.1rem;
  }
}

@media (max-width: 767.98px) {
  .about-image-container {
    max-width: 100%;
    margin: 1rem auto 2.5rem;
    border-radius: var(--border-radius);
  }

  .about-main-image {
    height: 300px;
  }

  .play-icon {
    font-size: 3rem;
  }

  .overlay-text {
    font-size: 1rem;
  }

  .about-image-container::before {
    border-radius: calc(var(--border-radius) + 3px);
  }
}

@media (max-width: 575.98px) {
  .about-image-container {
    margin: 1rem auto 2rem;
  }

  .about-main-image {
    height: 250px;
  }

  .play-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
  }

  .overlay-text {
    font-size: 0.9rem;
  }
}

/* Hiệu ứng khi ảnh xuất hiện */
.about-image-container {
  animation: fadeInScale 1s ease-out;
}

@keyframes fadeInScale {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* ==========================================
   10. NEWS SECTION STYLES
   ========================================== */

.news-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  position: relative;
  overflow: hidden;
}

.news-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(
      circle at 20% 80%,
      rgba(102, 126, 234, 0.03) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(118, 75, 162, 0.03) 0%,
      transparent 50%
    );
}

.news-section .container {
  position: relative;
  z-index: 1;
}

.news-section h2 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-weight: 700;
}

.news-section .lead {
  color: var(--text-light);
  margin-bottom: 3rem;
}

.news-card {
  background: white;
  border-radius: var(--border-radius-large);
  overflow: hidden;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  animation: newsCardSlideUp 0.6s ease forwards;
}

.news-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
}

.news-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: var(--transition);
  z-index: 1;
}

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

.news-image {
  position: relative;
  overflow: hidden;
  height: 250px;
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.news-card:hover .news-image img {
  transform: scale(1.1);
}

.news-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.1) 0%,
    rgba(0, 0, 0, 0.3) 100%
  );
  opacity: 0;
  transition: var(--transition);
}

.news-card:hover .news-overlay {
  opacity: 1;
}

.news-date {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 10px;
  padding: 10px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.news-date .day {
  display: block;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  line-height: 1;
}

.news-date .month {
  display: block;
  font-size: 0.8rem;
  color: var(--text-light);
  text-transform: uppercase;
  font-weight: 600;
}

.news-content {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.news-category {
  display: inline-block;
  background: var(--gradient);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
  align-self: flex-start;
}

.news-content h4 {
  color: var(--text-dark);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}

.news-card:hover .news-content h4 {
  color: var(--primary-color);
}

.news-content p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.read-more {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  align-self: flex-start;
  position: relative;
}

.read-more::before {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

.read-more:hover::before {
  width: calc(100% - 25px);
}

.read-more:hover {
  color: var(--primary-color);
  text-decoration: none;
  transform: translateX(5px);
}

.read-more i {
  font-size: 0.8rem;
  transition: var(--transition);
}

.read-more:hover i {
  transform: translateX(3px);
}

@keyframes newsCardSlideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.news-card:nth-child(2) {
  animation-delay: 0.1s;
}
.news-card:nth-child(3) {
  animation-delay: 0.2s;
}

.news-card:hover .news-category {
  background: var(--gradient-hover);
  transform: scale(1.05);
}

.news-card:hover .news-date {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.btn-outline-primary:hover::before {
  left: 0;
}

.btn-outline-primary:hover {
  color: white;
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(44, 90, 160, 0.3);
}

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

/* Large Desktop - Giữ nguyên 3 cột ngang */
@media (min-width: 1200px) {
  .news-section .col-lg-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  
  .news-section .row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* Desktop - Giữ nguyên 3 cột ngang */
@media (max-width: 1199px) and (min-width: 992px) {
  .news-section .col-lg-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  
  .news-section .row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* Medium devices (tablets) - Chuyển thành 1 cột dọc */
@media (max-width: 991.98px) {
  .news-section {
    padding: 80px 0;
  }
  
  .news-section .col-lg-4 {
    flex: 0 0 100%;
    max-width: 100%;
    margin-bottom: 30px;
  }
  
  .news-section .row {
    flex-direction: column;
    align-items: center;
  }
  
  .news-card {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .news-image {
    height: 220px;
  }
  
  .news-content {
    padding: 1.5rem;
  }
  
  .news-content h4 {
    font-size: 1.1rem;
  }
}

/* Tablet Portrait - 1 cột dọc */
@media (max-width: 767.98px) {
  .news-section {
    padding: 60px 0;
  }
  
  .news-section .col-lg-4 {
    flex: 0 0 100%;
    max-width: 100%;
    margin-bottom: 25px;
  }
  
  .news-section .row {
    flex-direction: column;
    align-items: center;
  }
  
  .news-card {
    max-width: 100%;
    margin: 0 auto;
  }
  
  .news-image {
    height: 200px;
  }
  
  .news-content {
    padding: 1.25rem;
  }
  
  .news-content h4 {
    font-size: 1rem;
    -webkit-line-clamp: 3;
  }
  
  .news-content p {
    font-size: 0.9rem;
    -webkit-line-clamp: 2;
  }
  
  .news-date {
    top: 15px;
    right: 15px;
    padding: 8px;
  }
  
  .news-date .day {
    font-size: 1.2rem;
  }
  
  .news-date .month {
    font-size: 0.7rem;
  }
}

/* Mobile - 1 cột dọc compact */
@media (max-width: 575.98px) {
  .news-section {
    padding: 60px 0;
  }
  
  .news-section .col-lg-4 {
    flex: 0 0 100%;
    max-width: 100%;
    margin-bottom: 20px;
  }
  
  .news-section .row {
    flex-direction: column;
    align-items: center;
  }
  
  .news-card {
    margin-bottom: 2rem;
  }
  
  .news-content h4 {
    font-size: 0.95rem;
  }
  
  .btn-outline-primary {
    padding: 10px 25px;
    font-size: 0.9rem;
  }
}

/* Đảm bảo spacing đều cho các card */
.news-section .col-lg-4:last-child {
  margin-bottom: 0;
}

/* Tối ưu cho màn hình trung bình */
@media (max-width: 991px) {
  .news-section .col-lg-4:last-child {
    margin-bottom: 0;
  }
}


/* ==========================================
   11. CONTACT SECTION STYLES
   ========================================== */

.contact-section {
  padding: 100px 0;
  position: relative;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  overflow: hidden;
}

.contact-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e9ecef" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
  z-index: 1;
}

.contact-section .container {
  position: relative;
  z-index: 2;
}

/* Section Header */
.contact-section h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1rem;
  text-align: center;
}

.contact-section .lead {
  color: var(--text-light);
  margin-bottom: 3rem;
  text-align: center;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Contact Info Cards */
.contact-info {
  background: white;
  padding: 2.5rem;
  border-radius: var(--border-radius-large);
  box-shadow: var(--shadow-medium);
  height: 100%;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.05);
  margin-bottom: 2rem;
}

.contact-info::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient);
}

.contact-info:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-heavy);
}

.contact-info h4 {
  color: var(--text-dark);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-align: center;
}

.contact-info .contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  padding: 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  background: rgba(248, 249, 250, 0.5);
  border: 1px solid transparent;
}

.contact-info .contact-item:hover {
  background: white;
  transform: translateX(8px);
  border-color: rgba(44, 90, 160, 0.1);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-info .contact-item i {
  width: 50px;
  height: 50px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  flex-shrink: 0;
  color: white;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

.contact-info .contact-item .contact-details {
  flex: 1;
}

.contact-info .contact-item .contact-details strong {
  color: var(--text-dark);
  font-size: 1.1rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.3rem;
}

.contact-info .contact-item .contact-details span,
.contact-info .contact-item .contact-details a {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.6;
  text-decoration: none;
  transition: var(--transition);
}

.contact-info .contact-item .contact-details a:hover {
  color: var(--primary-color);
}

/* Contact Form */
.contact-form {
  background: white;
  padding: 2.5rem;
  border-radius: var(--border-radius-large);
  box-shadow: var(--shadow-medium);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.contact-form::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient);
}

.contact-form h4 {
  color: var(--text-dark);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-align: center;
}

.contact-form .form-group {
  margin-bottom: 1.5rem;
}

.contact-form .form-control {
  border: 2px solid #e9ecef;
  border-radius: var(--border-radius);
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  transition: var(--transition);
  background: #f8f9fa;
}

.contact-form .form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(44, 90, 160, 0.25);
  background: white;
}

.contact-form textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn-primary {
  background: var(--gradient);
  border: none;
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  width: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.contact-form .btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-hover);
  transition: var(--transition);
}

.contact-form .btn-primary:hover::before {
  left: 0;
}

.contact-form .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(44, 90, 160, 0.3);
}

.contact-form .btn-primary span {
  position: relative;
  z-index: 2;
}

/* Map Section */
.map-section {
  position: relative;
  margin-top: -1px;
}

.map-section iframe {
  width: 100%;
  height: 450px;
  border: none;
  filter: grayscale(20%);
  transition: var(--transition);
}

.map-section iframe:hover {
  filter: grayscale(0%);
}

/* ==========================================
   FOOTER - PROFESSIONAL DESIGN - XANH LÁ SẠCH
   ========================================== */

.footer {
  background: url("assets/img/footer.jpg") center center/cover no-repeat;
  color: white;
  position: relative;
  overflow: hidden;
  margin-top: 0;
}

.footer::before {
  display: none !important;
}

.footer::after {
  display: none !important;
}

.footer .container {
  position: relative;
  z-index: 2;
}

/* Footer Top */
.footer-top {
  padding: 60px 0 40px;
  /* border-bottom: 1px solid rgba(255, 255, 255, 0.1); */
  border-bottom: none;
}

.footer-section {
  height: 100%;
}

.footer-section h5 {
  color: white;
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-section h5::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
}

.footer-section h6 {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

/* Company Info */
.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.footer-logo-img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin-right: 15px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition);
  object-fit: cover;
}

.footer-logo-img:hover {
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.05);
}

.footer-logo h5 {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.3;
  flex: 1;
  min-width: 200px;
}

.footer-logo h5::after {
  display: none;
}

.footer-description {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

/* Social Links */
.footer-social {
  margin-top: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-link {
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.social-link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transform: scale(0);
  transition: var(--transition);
  border-radius: 50%;
}

.social-link:hover {
  color: white;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  text-decoration: none;
}

.social-link:hover::before {
  transform: scale(1);
}

.social-link i {
  position: relative;
  z-index: 2;
  font-size: 1.1rem;
}

/* Footer Links */
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.8rem;
  transition: var(--transition);
}

.footer-links li:hover {
  transform: translateX(5px);
}

.footer-links li a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  display: inline-block;
  font-size: 0.95rem;
}

.footer-links li a::before {
  content: "▸";
  margin-right: 0.5rem;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  transition: var(--transition);
}

.footer-links li a:hover {
  color: white;
  text-decoration: none;
}

.footer-links li a:hover::before {
  color: white;
  transform: translateX(3px);
}

/* Contact Info in Footer */
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.footer-contact .contact-item {
  display: flex;
  align-items: flex-start;
  padding: 0.8rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-contact .contact-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(5px);
  border-color: rgba(255, 255, 255, 0.2);
}

.footer-contact .contact-item i {
  width: 35px;
  height: 35px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  color: white;
  font-size: 0.9rem;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.footer-contact .contact-details {
  flex: 1;
}

.footer-contact .contact-details strong {
  color: white;
  font-size: 0.95rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.3rem;
}

.footer-contact .contact-details span,
.footer-contact .contact-details a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  line-height: 1.6;
  text-decoration: none;
  transition: var(--transition);
}

.footer-contact .contact-details a:hover {
  color: white;
  text-decoration: none;
}

/* Footer Bottom */
.footer-bottom {
  padding: 25px 0;
  background: rgba(0, 0, 0, 0.2);
  border-top: none;
}
.footer-top {
  padding: 60px 0 40px;
  border-bottom: none;
}

.footer-bottom {
  padding: 25px 0;
  background: rgba(0, 0, 0, 0.2);
  border-top: none;
}

.footer,
.footer-top,
.footer-bottom {
  border: none !important;
  border-top: none !important;
  border-bottom: none !important;
}

.footer-bottom .row {
  align-items: center;
}

.copyright-text {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.copyright-text strong {
  color: white;
  font-weight: 600;
}

.footer-bottom-links {
  text-align: right;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 1rem;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9rem;
}

.footer-bottom-links a:hover {
  color: white;
  text-decoration: underline;
}

.footer-bottom-links .separator {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8rem;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 991.98px) {
  .contact-section {
    padding: 80px 0;
  }

  .contact-info,
  .contact-form {
    margin-bottom: 2rem;
  }

  .footer-top {
    padding: 50px 0 30px;
  }

  .footer-top .col-lg-3,
  .footer-top .col-lg-4 {
    margin-bottom: 2rem;
  }
}

@media (max-width: 767.98px) {
  .contact-section h2 {
    font-size: 2rem;
  }

  .contact-info,
  .contact-form {
    padding: 2rem;
  }

  .contact-info .contact-item {
    padding: 0.8rem;
  }

  .contact-info .contact-item i {
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
  }

  .footer .social-links {
    justify-content: center;
  }

  .footer .social-links a {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .map-section iframe {
    height: 300px;
  }
}

@media (max-width: 575.98px) {
  .contact-info,
  .contact-form {
    padding: 1.5rem;
  }

  .contact-section h2 {
    font-size: 1.8rem;
  }

  .footer-top {
    padding: 40px 0 20px;
  }

  .footer .contact-info-item i {
    width: 30px;
    height: 30px;
    font-size: 0.8rem;
  }
}

/* Animation Effects */
@keyframes pulse {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.7;
  }
}

.contact-info .contact-item {
  animation: fadeInUp 0.6s ease-out;
}

.contact-info .contact-item:nth-child(2) {
  animation-delay: 0.1s;
}
.contact-info .contact-item:nth-child(3) {
  animation-delay: 0.2s;
}
.contact-info .contact-item:nth-child(4) {
  animation-delay: 0.3s;
}
.contact-info .contact-item:nth-child(5) {
  animation-delay: 0.4s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================
   13. MESSENGER CONTACT BUTTON
   ========================================== */
.messenger-contact {
  position: fixed;
  bottom: 90px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #0084ff 0%, #0866ff 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(8, 102, 255, 0.4);
  transition: all 0.3s ease;
  z-index: 1000;
  animation: messengerFloat 3s ease-in-out infinite;
  overflow: hidden;
  border: 3px solid rgba(255, 255, 255, 0.2);
}

.messenger-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #0866ff 0%, #00b2ff 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 50%;
}

.messenger-contact:hover::before {
  opacity: 1;
}

.messenger-contact:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(8, 102, 255, 0.6);
  text-decoration: none;
  border-color: rgba(255, 255, 255, 0.4);
}

.messenger-contact .fa-facebook-messenger {
  font-size: 28px;
  color: white;
  transition: all 0.3s ease;
}

.messenger-contact:hover .fa-facebook-messenger {
  transform: scale(1.1) rotate(5deg);
  color: #ffffff;
}

.messenger-text {
  position: absolute;
  right: 70px;
  background: linear-gradient(135deg, #0084ff 0%, #0866ff 100%);
  color: white;
  padding: 10px 16px;
  border-radius: 25px;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(10px);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(8, 102, 255, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.messenger-text::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -10px;
  width: 0;
  height: 0;
  border-left: 10px solid #0084ff;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  transform: translateY(-50%);
}

.messenger-contact:hover .messenger-text {
  opacity: 1;
  transform: translateX(0);
}

.messenger-contact::after {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border: 2px solid #0084ff;
  border-radius: 50%;
  animation: messengerPulse 2s infinite;
}

@keyframes messengerPulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(1.3);
    opacity: 0;
  }
}

@keyframes messengerFloat {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* ==========================================
   14. SCROLL TO TOP BUTTON
   ========================================== */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient);
  color: white;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1000;
  box-shadow: var(--shadow-medium);
}

.scroll-to-top:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-heavy);
}

.scroll-to-top.show {
  opacity: 1;
  visibility: visible;
}

/* ==========================================
   15. LOADING ANIMATION
   ========================================== */
#loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  flex-direction: column;
}

.loading-spinner {
  text-align: center;
}

.loading-spinner .spinner-border {
  width: 3rem;
  height: 3rem;
}

/* ==========================================
   16. NOTIFICATION TOAST
   ========================================== */
.notification-toast {
  position: fixed;
  top: 100px;
  right: 20px;
  z-index: 9999;
  min-width: 300px;
  animation: slideInRight 0.5s ease;
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOutRight {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

/* ==========================================
   17. UTILITY CLASSES
   ========================================== */
.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient {
  background: var(--gradient);
}

.shadow-custom {
  box-shadow: var(--shadow-medium);
}

.border-radius-custom {
  border-radius: var(--border-radius);
}

/* ==========================================
   18. RESPONSIVE DESIGN
   ========================================== */

/* Large devices (desktops, 992px and up) */
@media (max-width: 1199.98px) {
  .hero h1 {
    font-size: 3rem;
  }
  .hero-icon {
    font-size: 12rem;
  }
  .hero-content {
    padding-right: 15px;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (max-width: 991.98px) {
  .hero {
    text-align: center;
    padding: 120px 0 80px;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
  .hero .lead {
    font-size: 1.1rem;
    text-align: left;
  }
  .hero-icon {
    font-size: 8rem;
  }
  .hero-content {
    padding-right: 0;
    padding-bottom: 30px;
  }

  .about-section {
    padding: 80px 0;
  }
  .about-content {
    margin-bottom: 2rem;
  }
  .about-content h3 {
    font-size: 1.6rem;
  }
  .core-value-item i {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  .services {
    padding: 80px 0;
  }
  .contact {
    padding: 80px 0;
  }
  .news-section {
    padding: 80px 0;
  }
  .news-image {
    height: 220px;
  }
  .news-content {
    padding: 1.5rem;
  }
  .news-content h4 {
    font-size: 1.1rem;
  }

  .stat-number {
    font-size: 2.5rem;
  }
  .navbar-collapse {
    margin-left: 0;
    justify-content: flex-start;
  }

  .navbar-logo {
    width: 40px;
    height: 40px;
    margin-right: 8px;
  }
  .navbar-brand {
    font-size: 1.5rem;
  }
}

@media (max-width: 767.98px) {
  .hero h1 {
    font-size: 2rem;
  }
  .hero .lead {
    font-size: 1rem;
    text-align: left;
  }
  .hero-icon {
    font-size: 6rem;
  }
  .hero-content p {
    text-align: left;
  }

  .about-section {
    padding: 70px 0;
  }
  .about-content {
    padding: 1.5rem;
  }
  .about-content h3 {
    font-size: 1.5rem;
  }
  .core-value-item h4 {
    font-size: 1.1rem;
  }

  .service-card {
    margin-bottom: 2rem;
  }
  .contact-form {
    padding: 2rem;
  }
  .news-section {
    padding: 60px 0;
  }
  .news-image {
    height: 200px;
  }
  .news-content {
    padding: 1.25rem;
  }
  .news-content h4 {
    font-size: 1rem;
    -webkit-line-clamp: 3;
  }
  .news-content p {
    font-size: 0.9rem;
    -webkit-line-clamp: 2;
  }
  .news-date {
    top: 15px;
    right: 15px;
    padding: 8px;
  }
  .news-date .day {
    font-size: 1.2rem;
  }
  .news-date .month {
    font-size: 0.7rem;
  }

  .stat-number {
    font-size: 2rem;
  }
  .stat-label {
    font-size: 1rem;
  }
  .notification-toast {
    min-width: 250px;
    top: 80px;
  }
  .scroll-to-top {
    width: 40px;
    height: 40px;
    bottom: 20px;
    right: 20px;
  }

  .navbar-logo {
    width: 35px;
    height: 35px;
    margin-right: 6px;
  }
  .navbar-brand {
    font-size: 1.2rem;
  }

  .messenger-contact {
    bottom: 80px;
    right: 20px;
    width: 55px;
    height: 55px;
    border-width: 2px;
  }
  .messenger-contact .fa-facebook-messenger {
    font-size: 24px;
  }
  .messenger-text {
    font-size: 12px;
    padding: 8px 12px;
    right: 65px;
    border-radius: 20px;
  }
}

@media (max-width: 575.98px) {
  .hero {
    padding: 100px 0 60px;
  }
  .hero h1 {
    font-size: 1.8rem;
  }
  .hero .lead {
    font-size: 0.95rem;
    text-align: left;
  }
  .hero-content p {
    text-align: left;
  }

  .about-section {
    padding: 60px 0;
  }
  .about-content {
    padding: 1.25rem;
  }
  .about-content h3 {
    font-size: 1.4rem;
  }
  .core-value-item {
    gap: 0.75rem;
  }
  .core-value-item i {
    width: 35px;
    height: 35px;
    font-size: 1rem;
  }
  .core-value-item h4 {
    font-size: 1rem;
  }
  .core-value-item p {
    font-size: 0.9rem;
  }

  .services {
    padding: 60px 0;
  }
  .contact {
    padding: 60px 0;
  }
  .stats {
    padding: 60px 0;
  }
  .news-section {
    padding: 60px 0;
  }
  .news-card {
    margin-bottom: 2rem;
  }
  .news-content h4 {
    font-size: 0.95rem;
  }
  .btn-outline-primary {
    padding: 10px 25px;
    font-size: 0.9rem;
  }

  .service-card {
    padding: 1.5rem;
  }
  .contact-form {
    padding: 1.5rem;
  }
  .service-icon {
    width: 70px;
    height: 70px;
    font-size: 1.8rem;
  }
  .btn-custom {
    padding: 10px 25px;
    font-size: 0.9rem;
  }

  .navbar-logo {
    width: 35px;
    height: 35px;
    margin-right: 6px;
  }
  .navbar-brand {
    font-size: 1rem;
  }

  .messenger-contact {
    bottom: 70px;
    right: 15px;
    width: 50px;
    height: 50px;
  }
  .messenger-contact .fa-facebook-messenger {
    font-size: 22px;
  }
  .messenger-text {
    display: none;
  }
}

/* ==========================================
   19. ACCESSIBILITY & PERFORMANCE
   ========================================== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero::before {
    animation: none;
  }
  .hero-icon {
    animation: none;
  }
}

.btn-custom:focus,
.form-control:focus,
.nav-link:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* ==========================================
   20. PRINT STYLES
   ========================================== */
@media print {
  .navbar,
  .scroll-to-top,
  .notification-toast,
  #loading-overlay,
  .messenger-contact {
    display: none !important;
  }

  .hero {
    background: none !important;
    color: black !important;
    min-height: auto;
    padding: 2rem 0;
  }

  .contact {
    background: none !important;
    color: black !important;
  }

  .service-card,
  .contact-form {
    box-shadow: none !important;
    border: 1px solid #ddd;
  }
}
/* ==========================================
   FLOATING HOTLINE BUTTON
   ========================================== */

.floating-hotline {
  position: fixed;
  bottom: 30px;
  left: 30px;
  z-index: 9999;
  cursor: pointer;
  animation: floatUpDown 3s ease-in-out infinite;
}

@keyframes floatUpDown {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.hotline-btn {
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  padding: 12px 20px 12px 12px;
  box-shadow: 0 8px 25px rgba(220, 53, 69, 0.4);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  border: 3px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  min-width: 200px;
}

.hotline-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 35px rgba(220, 53, 69, 0.6);
  color: white;
  text-decoration: none;
  border-color: rgba(255, 255, 255, 0.4);
}

.hotline-btn:active {
  transform: scale(0.98);
}

/* Phone Icon */
.phone-icon {
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  font-size: 1.2rem;
  position: relative;
  animation: phoneRing 2s ease-in-out infinite;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

@keyframes phoneRing {
  0%,
  100% {
    transform: rotate(0deg);
  }
  10%,
  30% {
    transform: rotate(-10deg);
  }
  20%,
  40% {
    transform: rotate(10deg);
  }
  50% {
    transform: rotate(0deg);
  }
}

.phone-icon i {
  color: white;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

/* Hotline Text */
.hotline-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hotline-number {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  line-height: 1;
}

/* Ripple Effects */
.hotline-ripple {
  position: absolute;
  top: 50%;
  left: 22px;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  border: 3px solid rgba(220, 53, 69, 0.6);
  transform: translate(-50%, -50%);
  animation: rippleEffect 2s infinite;
  pointer-events: none;
}

.ripple-delay-1 {
  animation-delay: 0.5s;
}

.ripple-delay-2 {
  animation-delay: 1s;
}

@keyframes rippleEffect {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(2.5);
    opacity: 0;
  }
}

/* Hotline Tooltip */
.hotline-tooltip {
  position: fixed;
  bottom: 100px;
  left: 30px;
  background: white;
  border-radius: 15px;
  padding: 15px 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(0, 0, 0, 0.1);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  max-width: 250px;
  min-width: 220px;
}

.hotline-tooltip.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.hotline-tooltip::before {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 30px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid white;
}

.tooltip-content h6 {
  margin: 0 0 8px 0;
  color: var(--primary-color);
  font-size: 1rem;
  font-weight: 600;
}

.tooltip-content p {
  margin: 0 0 5px 0;
  color: var(--text-dark);
  font-size: 0.9rem;
  line-height: 1.4;
}

.tooltip-content small {
  color: var(--text-light);
  font-size: 0.8rem;
  font-style: italic;
}

/* Shine Effect */
.hotline-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.6s;
}

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

/* Pulse Effect on Hover */
.floating-hotline:hover .hotline-btn {
  animation: none;
}

.floating-hotline:hover .phone-icon {
  animation: phonePulse 0.6s ease-in-out;
}

@keyframes phonePulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

/* ==========================================
   RESPONSIVE DESIGN FOR HOTLINE
   ========================================== */

@media (max-width: 768px) {
  .floating-hotline {
    bottom: 20px;
    left: 20px;
  }

  .hotline-btn {
    padding: 10px 15px 10px 10px;
    min-width: 180px;
  }

  .phone-icon {
    width: 40px;
    height: 40px;
    margin-right: 10px;
    font-size: 1.1rem;
  }

  .hotline-number {
    font-size: 1rem;
  }

  .hotline-ripple {
    left: 20px;
    width: 40px;
    height: 40px;
  }

  .hotline-tooltip {
    bottom: 80px;
    left: 20px;
    max-width: 200px;
    min-width: 180px;
    padding: 12px 15px;
  }

  .hotline-tooltip::before {
    left: 25px;
  }
}

@media (max-width: 480px) {
  .floating-hotline {
    bottom: 15px;
    left: 15px;
  }

  .hotline-btn {
    padding: 8px 12px 8px 8px;
    min-width: 160px;
  }

  .phone-icon {
    width: 35px;
    height: 35px;
    margin-right: 8px;
    font-size: 1rem;
  }

  .hotline-number {
    font-size: 0.95rem;
  }

  .hotline-ripple {
    left: 17px;
    width: 35px;
    height: 35px;
  }

  .hotline-tooltip {
    bottom: 70px;
    left: 15px;
    max-width: 180px;
    min-width: 160px;
    padding: 10px 12px;
  }

  .tooltip-content h6 {
    font-size: 0.9rem;
  }

  .tooltip-content p {
    font-size: 0.85rem;
  }

  .tooltip-content small {
    font-size: 0.75rem;
  }
}

/* Hide on very small screens if needed */
@media (max-width: 360px) {
  .hotline-tooltip {
    display: none;
  }
}

/* Print styles - hide hotline button when printing */
@media print {
  .floating-hotline,
  .hotline-tooltip {
    display: none !important;
  }
}

/* Accessibility improvements */
.hotline-btn:focus {
  outline: 3px solid rgba(220, 53, 69, 0.5);
  outline-offset: 2px;
}

.hotline-btn:focus:not(:focus-visible) {
  outline: none;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .floating-hotline,
  .phone-icon,
  .hotline-ripple {
    animation: none;
  }

  .hotline-btn,
  .hotline-tooltip {
    transition: none;
  }
}
/* ==========================================
   19. BUSINESS FORMATION SECTION
   ========================================== */

   .business-formation {
    padding: 80px 0;
  }
  
  .business-grid .row {
    display: flex;
    justify-content: center;
    align-items: stretch;
  }
  
  .business-card {
    background: #fff;
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    box-shadow:  0 10px 30px rgba(34, 197, 94, 0.1);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  
  .business-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(34, 197, 94, 0.15); 
    border-color: rgba(34, 197, 94, 0.1);
  }
  
  .business-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gradient); 
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3); 
  }
  .business-icon::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hover); /* Gradient hover xanh lá */
    opacity: 0;
    transition: var(--transition);
  }
  
  .business-card:hover .business-icon {
    transform: scale(1.1) rotateY(180deg); /* Hiệu ứng 3D giống services */
  }
  
  .business-card:hover .business-icon::before {
    opacity: 1;
  }
  
  .business-icon i {
    font-size: 2rem;
    color: white;
    position: relative;
    z-index: 2;
  }
  .business-icon i {
    font-size: 2rem;
    color: white;
  }
  
  .business-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
  }
  
  .business-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
  }
  
  /* Responsive Breakpoints cho chia đôi màn hình */
  /* Large Desktop - 3 cột */
  @media (min-width: 1200px) {
    .business-formation .col-lg-4 {
      flex: 0 0 33.333333%;
      max-width: 33.333333%;
    }
  }
  
  /* Medium Desktop và Split Screen - 1 cột dọc */
  @media (max-width: 1199px) and (min-width: 768px) {
    .business-formation .col-lg-4 {
      flex: 0 0 100%;
      max-width: 100%;
      margin-bottom: 30px;
    }
    
    .business-formation .row {
      flex-direction: column;
      align-items: center;
    }
    
    .business-card {
      max-width: 600px;
      margin: 0 auto;
    }
  }
  
  /* Tablet - 1 cột */
  @media (max-width: 767px) {
    .business-formation .col-lg-4 {
      flex: 0 0 100%;
      max-width: 100%;
      margin-bottom: 20px;
    }
    
    .business-card {
      padding: 25px 15px;
    }
    
    .business-icon {
      width: 60px;
      height: 60px;
    }
    
    .business-icon i {
      font-size: 1.5rem;
    }
  }
  
  /* Mobile - 1 cột compact */
  @media (max-width: 576px) {
    .business-formation {
      padding: 60px 0;
    }
    
    .business-card {
      padding: 20px 15px;
      margin-bottom: 15px;
    }
    
    .business-card h4 {
      font-size: 1.2rem;
    }
    
    .business-card p {
      font-size: 0.9rem;
    }
  }
/* ==========================================
   FOOTER LAYOUT OPTIMIZATION
   ========================================== */

/* Tối ưu layout footer */
.footer-top .row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
}

/* Đảm bảo các cột footer có chiều cao đồng đều */
.footer-section {
  height: 100%;
  display: flex;
  flex-direction: column;
}

/* Tối ưu responsive cho footer */
@media (max-width: 991.98px) {
  .footer-top .row {
    display: block;
  }

  .footer-top .col-lg-1,
  .footer-top .col-lg-2,
  .footer-top .col-lg-3 {
    width: 100%;
    max-width: 100%;
    flex: 0 0 100%;
  }
}

@media (min-width: 992px) {
  /* Đảm bảo layout ngang trên desktop */
  .footer-top .row {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
  }

  /* Điều chỉnh kích thước cột để fit tốt hơn */
  .footer-top .col-lg-3:first-child {
    flex: 0 0 25%;
    max-width: 25%;
  }

  .footer-top .col-lg-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }

  .footer-top .col-lg-1 {
    flex: 0 0 12%;
    max-width: 12%;
  }

  .footer-top .col-lg-2:last-of-type {
    flex: 0 0 20%;
    max-width: 20%;
  }
}

/* Tối ưu khoảng cách giữa các phần tử */
.footer-section h5 {
  margin-bottom: 1.2rem;
  font-size: 1.1rem;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.contact-item {
  margin-bottom: 1rem;
}

.contact-item:last-child {
  margin-bottom: 0;
}

/* Responsive cho tablet */
@media (max-width: 1199.98px) and (min-width: 992px) {
  .footer-section h5 {
    font-size: 1rem;
  }

  .footer-links a,
  .contact-details {
    font-size: 0.9rem;
  }
}