/* 
 * MANH DUC MCI - Modern CSS 2026
 * Features: Container Queries, CSS Grid, Variables, Modern Layouts
 * Version: 2.0.1 - Fixed Syntax Errors
 */

/* ===== CSS VARIABLES ===== */
:root {
  /* Color System */
  --color-primary: #0077b6;
  --color-primary-dark: #005885;
  --color-primary-light: #48cae4;
  --color-secondary: #ff6b6b;
  --color-accent: #51cf66;
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-gray-50: #f8f9fa;
  --color-gray-100: #e9ecef;
  --color-gray-200: #dee2e6;
  --color-gray-300: #ced4da;
  --color-gray-400: #adb5bd;
  --color-gray-500: #6c757d;
  --color-gray-600: #495057;
  --color-gray-700: #343a40;
  --color-gray-800: #212529;
  --color-gray-900: #121416;
  --color-black: #000000;
  
  /* Semantic Colors */
  --color-text: var(--color-gray-800);
  --color-text-light: var(--color-gray-600);
  --color-background: var(--color-white);
  --color-surface: var(--color-gray-50);
  --color-border: var(--color-gray-200);
  
  /* Spacing System */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  
  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 
                     'Helvetica Neue', Arial, sans-serif;
  --font-family-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                        'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;
  --line-height-none: 1;
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Border Radius */
  --radius-sm: 0.125rem;
  --radius-base: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows - Fixed rgba syntax */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Container Widths */
  --container-xs: 20rem;
  --container-sm: 24rem;
  --container-md: 28rem;
  --container-lg: 32rem;
  --container-xl: 36rem;
  --container-2xl: 42rem;
  --container-3xl: 48rem;
  --container-4xl: 56rem;
  --container-5xl: 64rem;
  --container-6xl: 72rem;
  --container-7xl: 80rem;
  --container-full: 100%;
  
  /* Grid System */
  --grid-columns: 12;
  --grid-gap: var(--space-6);
  --grid-gap-sm: var(--space-4);
  --grid-gap-lg: var(--space-8);
}


/* ===== RESET & BASE STYLES ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ===== CONTAINER QUERIES SYSTEM ===== */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

/* Responsive container widths - FIXED media queries */
@media (min-width: 36rem) {
  .container {
    max-width: var(--container-xl);
  }
}

@media (min-width: 48rem) {
  .container {
    max-width: var(--container-3xl);
  }
}

@media (min-width: 64rem) {
  .container {
    max-width: var(--container-5xl);
  }
}

@media (min-width: 80rem) {
  .container {
    max-width: var(--container-6xl);
  }
}

/* ===== GRID SYSTEM WITH SUBGRID ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns, 12), 1fr);
  gap: var(--grid-gap, var(--space-6));
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }
.grid-cols-7 { grid-template-columns: repeat(7, 1fr); }
.grid-cols-8 { grid-template-columns: repeat(8, 1fr); }
.grid-cols-9 { grid-template-columns: repeat(9, 1fr); }
.grid-cols-10 { grid-template-columns: repeat(10, 1fr); }
.grid-cols-11 { grid-template-columns: repeat(11, 1fr); }
.grid-cols-12 { grid-template-columns: repeat(12, 1fr); }

/* Subgrid support */
.subgrid {
  display: grid;
  grid-template-columns: subgrid;
  grid-column: span var(--grid-columns, 12);
}

/* ===== MODERN HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-fixed);
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.header-container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-6);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
  min-height: 4.5rem;
}

/* Logo styles */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  color: var(--color-primary);
  font-size: var(--font-size-xl);
}

.site-logo img {
  height: 2.5rem;
  width: auto;
}

/* Desktop Navigation */
.desktop-navigation {
  display: none;
}

.nav-menu {
  display: flex;
  gap: var(--space-2);
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  color: var(--color-gray-700);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-gray-50);
}

.nav-link.active {
  color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary-light) 0%, rgba(0, 119, 182, 0.1) 100%);
}

/* Dropdown */
.nav-item[data-has-dropdown] > .nav-link::after {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
}

.nav-item[data-has-dropdown]:hover > .nav-link::after {
  transform: rotate(225deg);
}

.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 12rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.5rem);
  transition: all var(--transition-base);
  z-index: var(--z-dropdown);
}

.sub-menu::before {
  content: '';
  position: absolute;
  top: -0.5rem;
  left: 1.5rem;
  width: 1rem;
  height: 1rem;
  background: var(--color-white);
  transform: rotate(45deg);
  border-top-left-radius: var(--radius-sm);
}

.nav-item[data-has-dropdown]:hover > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ===== HEADER OPTIMIZATION ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-fixed);
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    height: 70px; /* Fixed height */
}

.header-container {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-6);
    padding-block: 0; /* Remove vertical padding */
    height: 70px; /* Match header height */
}

/* Logo Optimization */
.site-logo {
    flex-shrink: 0; /* Prevent logo shrinking */
}

.site-logo img {
    height: 45px; /* Reduce logo height */
    width: auto;
    max-height: 45px;
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    white-space: nowrap;
}

/* ===== DESKTOP NAVIGATION OPTIMIZATION ===== */
.desktop-navigation {
    display: flex;
    justify-content: flex-end;
    flex: 1;
    min-width: 0; /* Allow shrinking */
}

.nav-menu {
    display: flex;
    gap: 0.5rem; /* Reduce gap from var(--space-2) */
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: nowrap; /* Prevent wrapping */
    justify-content: flex-end;
}

.nav-item {
    position: relative;
    flex-shrink: 0; /* Prevent items from shrinking */
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.25rem; /* Reduce icon gap */
    padding: 0.5rem 0.75rem; /* Reduce padding */
    font-size: 0.9rem; /* Slightly smaller font */
    font-weight: 500;
    color: var(--color-gray-700);
    border-radius: var(--radius-md);
    white-space: nowrap; /* Prevent text wrapping */
    transition: all var(--transition-fast);
    text-decoration: none;
    line-height: 1.2;
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-gray-50);
}

/* Dropdown Indicator */
.dropdown-indicator {
    margin-left: 0.25rem;
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Sub-menu Optimization */
.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px; /* Reduced width */
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.5rem);
    transition: all var(--transition-base);
    z-index: var(--z-dropdown);
}

.sub-menu .nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* ===== MOBILE OPTIMIZATION ===== */
@media (max-width: 1024px) {
    .nav-menu {
        gap: 0.25rem; /* Even smaller gap on tablet */
    }
    
    .nav-link {
        padding: 0.5rem 0.6rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 768px) {
    .desktop-navigation {
        display: none;
    }
    
    
    .header-container {
        gap: var(--space-4);
    }
}

/* ===== UTILITY CLASSES FOR MENU ===== */
.menu-compact .nav-menu {
    gap: 0.25rem;
}

.menu-compact .nav-link {
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
}

/* ===== FALLBACK MENU OPTIMIZATION ===== */
.desktop-menu {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: nowrap;
}

.desktop-menu .menu-item {
    flex-shrink: 0;
}

.desktop-menu .nav-link {
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
    white-space: nowrap;
}

/* ===== HEADER RESPONSIVE BREAKPOINTS ===== */
@media (min-width: 1200px) {
    .container {
        max-width: var(--container-7xl); /* 80rem = 1280px */
        padding-inline: var(--space-6);
    }
    
    .nav-menu {
        gap: 0.75rem; /* Slightly more space on large screens */
    }
}

@media (min-width: 1400px) {
    .container {
        max-width: 90rem; /* 1440px */
    }
}




/* Responsive Navigation */
@media (min-width: 48rem) {
  .desktop-navigation {
    display: flex;
    justify-content: flex-end;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
}

@media (max-width: 47.9375rem) {
  .desktop-navigation {
    display: none;
  }
}

/* ===== HERO SECTION ===== */
.hero-section {
  padding-top: var(--space-24);
  padding-bottom: var(--space-16);
  background: linear-gradient(135deg, 
    rgba(0, 119, 182, 0.1) 0%,
    rgba(72, 202, 228, 0.05) 100%);
  position: relative;
  overflow: hidden;
      max-width: 1440px !important;
    margin: 0 auto !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 48rem) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 64rem) {
  .hero-grid {
    grid-template-columns: 3fr 2fr;
  }
}

.hero-content {
  display: grid;
  gap: var(--space-6);
}

.hero-content h1 {
  font-size: var(--font-size-5xl);
  line-height: var(--line-height-tight);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  max-width: 1440px;
}

@media (min-width: 48rem) {
  .hero-content h1 {
    font-size: var(--font-size-6xl);
  }
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}

/* ===== MODERN CARD COMPONENT ===== */
.card {
  --card-padding: var(--space-6);
  --card-radius: var(--radius-xl);
  
  background: var(--color-white);
  border-radius: var(--card-radius);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-0.25rem);
}

.card-header {
  padding: var(--card-padding);
  padding-bottom: 0;
}

.card-body {
  padding: var(--card-padding);
}

.card-footer {
  padding: var(--card-padding);
  padding-top: 0;
  border-top: 1px solid var(--color-border);
}

@media (min-width: 20rem) {
  .card {
    --card-padding: var(--space-8);
  }
  
  .card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
  }
}

/* Card grid layout */
.card-grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
}

@media (min-width: 48rem) {
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  }
}

@media (min-width: 64rem) {
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr));
  }
}

/* ===== SERVICES SECTION ===== */
.services-section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

.services-grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 36rem) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 80rem) {
  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.service-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.service-card:hover .service-icon {
  transform: translateY(-0.25rem) scale(1.1);
}

.service-icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: var(--font-size-2xl);
  transition: transform var(--transition-base);
}

.service-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-gray-900);
}

.service-description {
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
}

/* ===== ABOUT SECTION ===== */
.about-section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

.about-grid {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 48rem) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.about-content {
  display: grid;
  gap: var(--space-6);
}

.about-content h2 {
  font-size: var(--font-size-4xl);
  line-height: var(--line-height-tight);
  font-weight: 800;
  color: var(--color-gray-900);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.stat-item {
  text-align: center;
  padding: var(--space-4);
}

.stat-number {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: var(--line-height-tight);
}

.stat-label {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== MODERN FOOTER ===== */
.site-footer {
  background: linear-gradient(135deg, var(--color-gray-900), var(--color-gray-800));
  color: var(--color-white);
  padding-top: var(--space-20);
  padding-bottom: var(--space-8);
}

.footer-grid {
  display: grid;
  gap: var(--space-12);
}

@media (min-width: 48rem) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-column {
  display: grid;
  gap: var(--space-4);
}

.footer-column h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.footer-links {
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-content {
  display: grid;
  gap: var(--space-6);
  text-align: center;
}

@media (min-width: 48rem) {
  .footer-bottom-content {
    grid-template-columns: 1fr auto;
    text-align: left;
    align-items: center;
  }
}

.social-links {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

@media (min-width: 48rem) {
  .social-links {
    justify-content: flex-start;
  }
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.social-links a:hover {
  background: var(--color-primary);
  transform: translateY(-0.125rem);
}

/* ===== BUTTON SYSTEM ===== */
.btn {
  --btn-bg: var(--color-primary);
  --btn-color: var(--color-white);
  --btn-border: var(--color-primary);
  
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  line-height: var(--line-height-none);
  color: var(--btn-color);
  background: var(--btn-bg);
  border: 2px solid var(--btn-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  user-select: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-0.125rem);
  box-shadow: var(--shadow-md);
}

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn-primary {
  --btn-bg: var(--color-primary);
  --btn-color: var(--color-white);
  --btn-border: var(--color-primary);
}

.btn-primary:hover {
  --btn-bg: var(--color-primary-dark);
  --btn-border: var(--color-primary-dark);
}

.btn-secondary {
  --btn-bg: transparent;
  --btn-color: var(--color-primary);
  --btn-border: var(--color-primary);
}

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

.btn-outline {
  --btn-bg: transparent;
  --btn-color: var(--color-gray-700);
  --btn-border: var(--color-gray-300);
}

.btn-outline:hover {
  --btn-bg: var(--color-gray-50);
  --btn-border: var(--color-gray-400);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
}

/* ===== UTILITY CLASSES ===== */

/* Spacing */
.m-0 { margin: var(--space-0); }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }

.p-0 { padding: var(--space-0); }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Text */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }
.text-5xl { font-size: var(--font-size-5xl); }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-primary { color: var(--color-primary); }
.text-gray-600 { color: var(--color-gray-600); }
.text-white { color: var(--color-white); }

/* Background */
.bg-white { background-color: var(--color-white); }
.bg-gray-50 { background-color: var(--color-gray-50); }
.bg-primary { background-color: var(--color-primary); }

/* Border */
.rounded { border-radius: var(--radius-base); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.border { border: 1px solid var(--color-border); }
.border-t { border-top: 1px solid var(--color-border); }
.border-b { border-bottom: 1px solid var(--color-border); }

/* Shadow */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Width & Height */
.w-full { width: 100%; }
.h-full { height: 100%; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.animate-fadeIn {
  animation: fadeIn 0.5s ease-out;
}

.animate-slideInRight {
  animation: slideInRight 0.3s ease-out;
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ===== RESPONSIVE UTILITIES ===== */
@media (min-width: 48rem) {
  .md\:flex { display: flex; }
  .md\:grid { display: grid; }
  .md\:hidden { display: none; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:text-lg { font-size: var(--font-size-lg); }
  .md\:text-xl { font-size: var(--font-size-xl); }
}

@media (min-width: 64rem) {
  .lg\:flex { display: flex; }
  .lg\:grid { display: grid; }
  .lg\:hidden { display: none; }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .lg\:text-2xl { font-size: var(--font-size-2xl); }
  .lg\:text-4xl { font-size: var(--font-size-4xl); }
}

/* ===== PRINT STYLES ===== */
@media print {
  .site-header,
  .site-footer,
  .btn,
  .mobile-menu-toggle {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
  }
  
  .container {
    max-width: 100% !important;
    padding: 0 !important;
  }
  
  a {
    text-decoration: underline;
  }
}


/* ===== MENU FIXES ===== */

/* Desktop Menu Fix */
.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--space-2);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    color: var(--color-gray-700);
    font-weight: 500;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary);
    background-color: var(--color-gray-50);
}

/* Dropdown Menu Fix */
.nav-item.has-children > .nav-link {
    padding-right: var(--space-8);
    position: relative;
}

.dropdown-indicator {
    position: absolute;
    right: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 0.25rem solid transparent;
    border-right: 0.25rem solid transparent;
    border-top: 0.25rem solid currentColor;
    transition: transform var(--transition-fast);
}

.nav-item.has-children:hover .dropdown-indicator {
    transform: translateY(-50%) rotate(180deg);
}

/* Sub-menu Fix */
.nav-item .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 12rem;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.5rem);
    transition: all var(--transition-base);
    z-index: var(--z-dropdown);
    list-style: none;
    margin: 0;
}

.nav-item:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu .nav-link {
    padding: var(--space-2) var(--space-4);
    white-space: nowrap;
}

.sub-menu .nav-item:hover > .nav-link {
    background-color: var(--color-primary-light);
    color: var(--color-white);
}

/* Mobile Menu Fix */
.mobile-navigation-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(20rem, 100vw);
    height: 100vh;
    background: var(--color-white);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-base);
    z-index: var(--z-modal);
    overflow-y: auto;
}

.mobile-navigation-panel.active {
    right: 0;
}

.mobile-navigation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.mobile-logo {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--color-gray-700);
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-item {
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    color: var(--color-gray-700);
    text-decoration: none;
    font-weight: 500;
}

.mobile-dropdown-toggle {
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    color: var(--color-gray-700);
}

.mobile-sub-menu {
    display: none;
    list-style: none;
    margin: 0;
    padding-left: var(--space-4);
    background: var(--color-gray-50);
}

.mobile-nav-item.open .mobile-sub-menu {
    display: block;
}



/* Overlay for mobile menu */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ===== RESPONSIVE FIXES ===== */
@media (max-width: 767px) {
    .desktop-navigation {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-container {
        grid-template-columns: auto 1fr auto;
    }
}

@media (min-width: 768px) {
    .mobile-navigation-panel {
        display: none;
    }
    
    .mobile-menu-overlay {
        display: none;
    }
}

/* Active menu item */
.nav-item.current-menu-item > .nav-link,
.nav-item.current-menu-ancestor > .nav-link {
    color: var(--color-primary);
    background-color: color-mix(in srgb, var(--color-primary) 10%, transparent);
}

/* Mobile active state */
.mobile-nav-item.current-menu-item > .mobile-nav-link,
.mobile-nav-item.current-menu-ancestor > .mobile-nav-link {
    color: var(--color-primary);
    font-weight: 600;
}
/* Thêm vào cuối file style.css */
.site-main {
    padding-bottom: 4rem; /* Khoảng cách với footer */
    min-height: 50vh; /* Đảm bảo main có chiều cao tối thiểu */
}

.site-footer {
    margin-top: auto; /* Đẩy footer xuống dưới */
}

/* Hoặc sử dụng flexbox để đẩy footer xuống dưới cùng */
.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-main {
    flex: 1;
}
/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Fix cho mobile navigation panel */
.mobile-navigation-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(20rem, 100vw);
    height: 100vh;
    background: var(--color-white);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-base);
    z-index: var(--z-modal);
    overflow-y: auto;
}

.mobile-navigation-panel.active {
    right: 0;
}

/* Mobile Dropdown Toggle Button */
.mobile-dropdown-toggle {
    background: none;
    border: none;
    padding: var(--space-2);
    cursor: pointer;
    color: var(--color-gray-700);
}

.toggle-icon {
    display: block;
    width: 12px;
    height: 12px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform var(--transition-fast);
}

.mobile-nav-item.open .toggle-icon {
    transform: rotate(-135deg);
}

/* Mobile Sub-menu */
.mobile-sub-menu {
    display: none;
    padding-left: var(--space-4);
}

.mobile-nav-item.open .mobile-sub-menu {
    display: block;
}

/* ===== FIX SPACING ===== */
.site-main {
    padding-top: 50px; /* Khoảng cách cho header fixed */
    min-height: 50vh;
}
/* ====================================== fix menu mobile ==================================== */
/* ===== FIX SCROLL AND OVERFLOW ===== */
html {
    overflow-x: hidden !important;
    width: 100%;
    position: relative;
}

body {
    overflow-x: hidden !important;
    width: 100%;
    position: relative;
    margin: 0;
    padding: 0;
}

/* ===== FIX MOBILE MENU DISPLAY ===== */
@media (max-width: 767px) {
    .desktop-navigation {
        display: none !important;
    }
    

    
    .header-container {
        grid-template-columns: auto 1fr auto !important;
        padding: 0 15px !important;
    }
    
    /* Fix mobile panel positioning */
    #mobile-navigation-panel {
        position: fixed !important;
        top: 0 !important;
        right: -100% !important;
        width: 280px !important;
        max-width: 85vw !important;
        height: 100vh !important;
        background: white !important;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1) !important;
        z-index: 10000 !important;
        transition: right 0.3s ease !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
    }
    
    #mobile-navigation-panel.active {
        right: 0 !important;
    }
    
    /* Mobile menu overlay */
    .mobile-menu-overlay {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: 100% !important;
        background: rgba(0,0,0,0.5) !important;
        z-index: 9999 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        transition: all 0.3s ease !important;
    }
    
    .mobile-menu-overlay.active {
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    /* Prevent body scroll when menu is open */
    body.menu-open {
        overflow: hidden !important;
        position: fixed !important;
        width: 100% !important;
        height: 100% !important;
    }
}

/* ===== BACK TO TOP BUTTON FIXES ===== */
#back-to-top {
    position: fixed !important;
    bottom: 30px !important;
    right: 30px !important;
    width: 50px !important;
    height: 50px !important;
    background: #0077b6 !important;
    color: white !important;
    border: none !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 20px !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2) !important;
    transition: all 0.3s ease !important;
    z-index: 9999 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(20px) !important;
}

#back-to-top.show {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
}

#back-to-top:hover {
    background: #005885 !important;
    transform: translateY(-5px) !important;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3) !important;
}

/* ===== MAIN CONTENT FIX FOR HEADER SPACING ===== */
.site-main {
    padding-top: 60px !important; /* Adjust for fixed header height */
    min-height: 60vh;
}

/* ===== FIX HEADER HEIGHT AND ALIGNMENT ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-fixed);
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    height: 70px;
}

.header-container {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-6);
    padding-top: 0;
    padding-bottom: 0;
    height: 70px;
}

/* ===== LOGO ALIGNMENT FIX ===== */
.site-logo {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: 100%;
}

.site-logo img {
    max-height: 45px;
    width: auto;
    height: auto;
}



/* ===== MOBILE MENU CONTENT STYLING ===== */
.mobile-navigation {
    padding: 20px;
    flex-grow: 1;
}

.mobile-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-nav-item {
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.mobile-nav-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
}

.mobile-nav-link:hover {
    color: #0077b6;
}

.mobile-dropdown-toggle {
    background: none;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
    color: #666;
}

.mobile-contact-info {
    padding: 20px;
    border-top: 1px solid rgba(0,0,0,0.1);
    background: #f8f9fa;
}

/* ===== ENSURE CONTENT IS SCROLLABLE ===== */
.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
    width: 100%;
}

.site-main {
    flex: 1;
    overflow: visible;
}

/* ===== FIX FOR IOS SAFARI ===== */
@supports (-webkit-touch-callout: none) {
    .site-main {
        min-height: -webkit-fill-available;
    }
}
/* ===== URGENT FIXES FOR manhducmci.com ===== */

/* 1. FIX MOBILE MENU TOGGLE BUTTON */
.mobile-menu-toggle {
    display: none !important;
    width: 44px !important;
    height: 44px !important;
    background: transparent !important;
    border: none !important;
    cursor: pointer !important;
    position: relative !important;
    z-index: 1001 !important;
}

@media (max-width: 767px) {
    .mobile-menu-toggle {
        display: flex !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
    }
    
    .desktop-navigation {
        display: none !important;
    }
    
    /* Mobile panel fix */
    #mobile-navigation-panel {
        position: fixed !important;
        top: 0 !important;
        right: -100% !important;
        width: 280px !important;
        height: 100vh !important;
        background: white !important;
        z-index: 10000 !important;
        transition: right 0.3s ease !important;
        overflow-y: auto !important;
    }
    
    #mobile-navigation-panel.active {
        right: 0 !important;
    }
    
    /* Mobile overlay fix */
    .mobile-menu-overlay {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: 100% !important;
        background: rgba(0,0,0,0.5) !important;
        z-index: 9999 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        transition: all 0.3s ease !important;
    }
    
    .mobile-menu-overlay.active {
        opacity: 1 !important;
        visibility: visible !important;
    }
}

/* 2. FIX BACK TO TOP BUTTON */
#back-to-top {
    position: fixed !important;
    bottom: 30px !important;
    right: 30px !important;
    width: 50px !important;
    height: 50px !important;
    background: #0077b6 !important;
    color: white !important;
    border: none !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 20px !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2) !important;
    transition: all 0.3s ease !important;
    z-index: 9999 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(20px) !important;
}

#back-to-top.show {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
}

/* 3. FIX HEADER SPACING */
.site-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    z-index: 999 !important;
    background: white !important;
}

.site-main {
    padding-top: 80px !important;
    min-height: 60vh !important;
}

/* 4. FIX BODY SCROLL */
html, body {
    overflow-x: hidden !important;
    width: 100% !important;
    position: relative !important;
}

/* 5. DESKTOP MENU FIX */
@media (min-width: 768px) {
    .desktop-navigation {
        display: flex !important;
    }
    
    .mobile-menu-toggle {
        display: none !important;
    }
}
/* ===== URGENT FIX: MOBILE MENU TOGGLE VISIBILITY ===== */

/* Hiển thị nút menu mobile trên màn hình nhỏ */
@media (max-width: 767px) {
    .mobile-menu-toggle {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        z-index: 10010 !important;
        position: relative !important;
        background: transparent !important;
        border: none !important;
        cursor: pointer !important;
    }
    
    /* Đảm bảo các thanh hamburger hiển thị rõ */
    .toggle-bar {
        background: #333 !important;
        width: 24px !important;
        height: 3px !important;
        margin: 3px 0 !important;
        display: block !important;
        border-radius: 2px !important;
        box-shadow: 0 0 3px rgba(0,0,0,0.7) !important;
        transition: all 0.3s ease !important;
    }
    
    /* Fix cho logo và header alignment */
    .header-container {
        display: grid !important;
        grid-template-columns: 1fr auto 1fr !important;
        align-items: center !important;
        justify-items: center !important;
        padding: 0 15px !important;
    }
    
    .site-logo {
        grid-column: 2 !important;
        justify-self: center !important;
        display: flex !important;
        justify-content: center !important;
    }
    
    .mobile-menu-toggle {
        grid-column: 3 !important;
        justify-self: end !important;
    }
}

/* Ẩn nút menu trên desktop */
@media (min-width: 768px) {
    .mobile-menu-toggle {
        display: none !important;
    }
}

/* Fix cho nút Back to Top hiển thị đúng */
#back-to-top.show {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
}

/* Fix cho mobile panel hiển thị đúng */
#mobile-navigation-panel {
    z-index: 10000 !important;
}

/* Debug: Tạm thời thêm border để thấy nút menu */
.mobile-menu-toggle.debug {
    border: 2px solid red !important;
    background: rgba(255, 0, 0, 0.1) !important;
}
/* ===== KHẮC PHỤC KHẨN CẤP - HIỆN NÚT MENU MOBILE ===== */

/* 1. BUỘC HIỂN THỊ NÚT MENU TRÊN MOBILE */
@media screen and (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        width: 44px !important;
        height: 44px !important;
        background: transparent !important;
        border: none !important;
        cursor: pointer !important;
        padding: 10px !important;
        margin: 0 !important;
        position: absolute !important;
        right: 15px !important;
        top: 13px !important;
        z-index: 10010 !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
    }
    
    /* Hiển thị các thanh hamburger */
    .toggle-bar {
        width: 24px !important;
        height: 3px !important;
        background: #333 !important;
        margin: 3px 0 !important;
        display: block !important;
        border-radius: 2px !important;
        box-shadow: 0 0 3px rgba(0,0,0,0.7) !important;
        transition: all 0.3s ease !important;
    }
    
    /* Animation khi active */
    .mobile-menu-toggle.active .toggle-bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg) !important;
    }
    
    .mobile-menu-toggle.active .toggle-bar:nth-child(2) {
        opacity: 0 !important;
    }
    
    .mobile-menu-toggle.active .toggle-bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg) !important;
    }
    
    /* Fix header layout cho mobile */
    .header-container {
        position: relative !important;
        min-height: 70px !important;
    }
    
    /* Ẩn desktop menu trên mobile */
    .desktop-navigation {
        display: none !important;
    }
}

/* 2. Ẩn nút menu trên desktop */
@media screen and (min-width: 769px) {
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .desktop-navigation {
        display: flex !important;
    }
}

/* 3. FIX BACK TO TOP BUTTON */
#back-to-top {
    position: fixed !important;
    bottom: 30px !important;
    right: 30px !important;
    width: 50px !important;
    height: 50px !important;
    background: #0077b6 !important;
    color: white !important;
    border: none !important;
    border-radius: 50% !important;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 20px !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2) !important;
    transition: all 0.3s ease !important;
    z-index: 9999 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(20px) !important;
}

#back-to-top.show {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
}

#back-to-top:hover {
    background: #005885 !important;
    transform: translateY(-5px) !important;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3) !important;
}

/* 4. FIX SCROLL & HEADER */
.site-main {
    padding-top: 80px !important;
    min-height: 60vh !important;
}

.site-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    z-index: 1000 !important;
    background: white !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1) !important;
}

/* ===== FIX 1: LÀM NỔI BẬT 3 GẠCH MENU ===== */

/* Tạo màu tương phản cho 3 gạch menu */
.mobile-menu-toggle .toggle-bar {
    background: #000000 !important; /* Màu đen để nổi bật */
    box-shadow: 
        0 0 3px rgba(255,255,255,0.8),  /* Viền trắng bên trong */
        0 0 5px rgba(0,0,0,0.8) !important; /* Viền đen bên ngoài */
    transition: all 0.3s ease !important;
}

/* Thêm hiệu ứng hover */
.mobile-menu-toggle:hover .toggle-bar {
    background: #0077b6 !important; /* Màu theme khi hover */
    transform: scale(1.1);
}

/* ===== FIX 2: KÍCH HOẠT SCROLL ===== */

/* Đảm bảo body và html có thể scroll */
html, body {
    overflow-x: hidden !important;
    overflow-y: auto !important;
    height: 100% !important;
    width: 100% !important;
    position: relative !important;
}

/* Tạo chiều cao đủ để scroll */
.site-wrapper {
    display: flex !important;
    flex-direction: column !important;
    min-height: 100vh !important;
    height: auto !important;
    overflow: visible !important;
}

.site-main {
    flex: 1 !important;
    height: auto !important;
    overflow: visible !important;
    padding-bottom: 50px !important; /* Thêm padding để có nội dung scroll */
}

/* ===== FIX 3: ĐẢM BẢO NỘI DUNG ĐỦ DÀI ĐỂ SCROLL ===== */
/* Thêm nếu các section quá ngắn */
.hero-section, 
.services-section, 
.about-section {
    min-height: 400px !important;
    height: auto !important;
    
}

/* ===== FIX 4: NÚT BACK TO TOP RÕ RÀNG HƠN ===== */
#back-to-top {
    background: #0077b6 !important;
    border: 2px solid white !important;
    box-shadow: 
        0 4px 15px rgba(0,0,0,0.3),
        0 0 0 3px rgba(0,119,182,0.2) !important;
    font-weight: bold !important;
}

#back-to-top:hover {
    background: #005885 !important;
    transform: translateY(-5px) scale(1.1) !important;
    box-shadow: 
        0 8px 25px rgba(0,0,0,0.4),
        0 0 0 3px rgba(0,119,182,0.3) !important;
}

/* ===== FIX 5: HEADER CỐ ĐỊNH KHÔNG CHẶN SCROLL ===== */
.site-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    z-index: 1000 !important;
    background: rgba(255,255,255,0.95) !important;
    backdrop-filter: blur(10px) !important;
}

/* Thêm padding-top cho main để tránh bị header che */
.site-main {
    padding-top: 90px !important;
}

/* ===== FIX 6: MOBILE MENU RÕ RÀNG HƠN ===== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        background: rgba(255,255,255,0.9) !important;
        border-radius: 8px !important;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1) !important;
        border: 1px solid #e0e0e0 !important;
    }
    
    .mobile-menu-toggle .toggle-bar {
        background: #333 !important;
        box-shadow: 0 0 2px #fff, 0 0 2px #fff !important;
    }
}

/* ===== FIX 7: ĐẢM BẢO CÓ ĐỦ NỘI DUNG ĐỂ SCROLL ===== */
/* Nếu trang quá ngắn, thêm chiều cao tối thiểu */
body {
    min-height: 1200px !important; /* Tạm thời để test scroll */
}

@media (max-width: 768px) {
    body {
        min-height: 1200px !important;
    }
}

/* ===== FIX DUPLICATE SCROLL BARS ===== */
/* Remove all overflow conflicts */
html {
    overflow-x: hidden;
    overflow-y: auto !important; /* Chỉ một scroll bar ở html */
    width: 100%;
    height: auto !important;
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
}

body {
    overflow-x: hidden !important;
    overflow-y: hidden !important; /* Ẩn scroll trên body */
    width: 100% !important;
    height: auto !important;
    margin: 0 !important;
    padding: 0 !important;
    position: relative !important;
}

/* Site wrapper should not have overflow */
.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
    overflow: visible !important;
}

/* Main content area */
.site-main {
    flex: 1;
    overflow: visible !important;
    width: 100%;
}

/* Fix for fixed header */
.site-header {
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: white;
}

.site-main {
    padding-top: 90px !important; /* Space for fixed header */
}

/* Fix for mobile viewport */
@media (max-width: 768px) {
    html, body {
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
        position: relative !important;
    }
    
    .container {
        width: 100% !important;
        max-width: 100% !important;
        padding-left: 5px !important;
        padding-right: 5px !important;
    }
    
    .site-main {
        padding-top: 20px !important;
    }
}

/* Force single scroll bar */
* {
    max-width: 100%;
}

/* Remove test content added by JavaScript */
.scroll-test-area {
    display: none !important;
}
/* ===== 1200PX GLOBAL LAYOUT FIX ===== */
.site-wrapper-1200 {
    width: 100%;
    margin: 0 auto;
    position: relative;
    overflow: hidden; /* Quan trọng: ngăn tràn layout */
}


/* ===== COMMENTS STYLES ===== */
.comments-section {
    padding: var(--space-12) 0;
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    margin: var(--space-12) 0;
}

.comments-wrapper {
    max-width: var(--container-3xl);
    margin: 0 auto;
}

.comments-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 2px solid var(--color-primary-light);
}

.comments-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.comments-title span {
    color: var(--color-primary);
}

.comments-count {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    font-weight: 600;
}

.comments-navigation {
    display: flex;
    justify-content: space-between;
    margin: var(--space-8) 0;
}

.comments-navigation .nav-links {
    display: flex;
    gap: var(--space-4);
}

.comments-navigation a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-gray-700);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.comments-navigation a:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

/* Comment List */
.comment-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.comment-item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
    border: 1px solid var(--color-border);
}

.comment-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.comment-body {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-6);
}

@media (max-width: 768px) {
    .comment-body {
        grid-template-columns: 1fr;
    }
}

.comment-author {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.comment-avatar {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    border: 3px solid var(--color-primary-light);
}

.comment-meta {
    flex: 1;
}

.comment-author-name {
    margin-bottom: var(--space-2);
}

.comment-author-name .fn {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-gray-900);
}

.comment-author-name .fn a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.comment-author-name .fn a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.comment-awaiting-moderation {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: var(--space-2);
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
    background-color: rgba(255, 107, 107, 0.1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.comment-metadata {
    display: flex;
    gap: var(--space-4);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.comment-metadata time,
.comment-metadata .edit-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.comment-metadata a {
    color: var(--color-gray-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.comment-metadata a:hover {
    color: var(--color-primary);
}

.comment-content {
    grid-column: 1 / -1;
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-gray-100);
}

.comment-content p {
    margin-bottom: var(--space-4);
    line-height: var(--line-height-relaxed);
    color: var(--color-gray-800);
}

.comment-content .reply {
    margin-top: var(--space-4);
}

.comment-content .reply a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.comment-content .reply a:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* Comment Form */
.comment-form-header {
    margin-bottom: var(--space-8);
}

.comment-reply-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.comment-notes {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin: 0;
}

.comment-form {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
}

.comment-form .form-group {
    margin-bottom: var(--space-6);
}

.comment-form label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 600;
    color: var(--color-gray-900);
}

.comment-form .required {
    color: var(--color-secondary);
    font-weight: bold;
}

.comment-form .form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    transition: all var(--transition-fast);
}

.comment-form .form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.1);
}

.comment-form textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.form-submit {
    margin-top: var(--space-8);
}

.form-submit .btn {
    padding: var(--space-3) var(--space-8);
    font-size: var(--font-size-base);
}

/* Alerts */
.alert {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.alert i {
    font-size: var(--font-size-lg);
    margin-top: 2px;
}

.alert-info {
    background-color: rgba(72, 202, 228, 0.1);
    border-left: 4px solid var(--color-primary-light);
    color: var(--color-gray-800);
}

.alert-warning {
    background-color: rgba(255, 107, 107, 0.1);
    border-left: 4px solid var(--color-secondary);
    color: var(--color-gray-800);
}

.alert a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
}

.alert a:hover {
    text-decoration: underline;
}

.must-log-in,
.logged-in-as {
    margin-bottom: var(--space-8);
}

/* Nested Comments */
.comment-list .children {
    list-style: none;
    margin: var(--space-4) 0 0 var(--space-8);
    padding: 0;
    border-left: 2px solid var(--color-gray-200);
    padding-left: var(--space-6);
}

.comment-list .children .comment-item {
    margin-top: var(--space-4);
    margin-bottom: var(--space-4);
    background-color: var(--color-gray-50);
}

.comment-list .children .comment-item:hover {
    background-color: var(--color-white);
}

/* Responsive Comments */
@media (max-width: 768px) {
    .comments-section {
        padding: var(--space-6) 0;
    }
    
    .comments-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }
    
    .comment-form {
        padding: var(--space-6);
    }
    
    .comment-body {
        gap: var(--space-4);
    }
    
    .comment-author {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .comment-meta {
        text-align: center;
    }
    
    .comment-metadata {
        justify-content: center;
    }
}

/* Print Styles */
@media print {
    .comments-section {
        break-inside: avoid;
    }
    
    .comment-form,
    .reply {
        display: none !important;
    }
}
/* ===== COMMENTS AREA ===== */
.comments-area {
    margin-top: var(--space-16);
    padding-top: var(--space-16);
    border-top: 1px solid var(--color-border);
}

.comments-wrapper {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
}

/* Comments Header */
.comments-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 2px solid var(--color-primary-light);
}

.comments-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0;
}

.comments-navigation {
    display: flex;
    gap: var(--space-4);
}

.comments-navigation .nav-prev,
.comments-navigation .nav-next {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-gray-100);
    border-radius: var(--radius-lg);
    color: var(--color-gray-700);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.comments-navigation .nav-prev:hover,
.comments-navigation .nav-next:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.comments-navigation-bottom {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

/* Comment List */
.comment-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.comment {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-gray-100);
}

.comment:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.comment-body {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-6);
}

@media (max-width: 768px) {
    .comment-body {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.comment-author {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.comment-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-primary-light);
}

.comment-meta {
    flex: 1;
}

.comment-author-name {
    margin-bottom: var(--space-2);
}

.comment-author-name .fn {
    font-weight: 600;
    color: var(--color-gray-900);
}

.comment-author-name .fn a {
    color: var(--color-primary);
    text-decoration: none;
}

.comment-author-name .fn a:hover {
    text-decoration: underline;
}

.comment-awaiting-moderation {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
}

.comment-metadata {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.comment-metadata a {
    color: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.comment-metadata a:hover {
    color: var(--color-primary);
}

.comment-metadata .edit-link,
.comment-metadata .reply-link {
    margin-left: var(--space-2);
}

.comment-content {
    grid-column: 1 / -1;
    margin-top: var(--space-4);
}

.comment-content p {
    margin-bottom: var(--space-4);
    line-height: var(--line-height-relaxed);
    color: var(--color-gray-800);
}

.comment-content p:last-child {
    margin-bottom: 0;
}

/* Nested Comments (Replies) */
.comment-list .children {
    list-style: none;
    margin: var(--space-6) 0 0 var(--space-12);
    padding: 0;
    border-left: 2px solid var(--color-gray-200);
    padding-left: var(--space-6);
}

@media (max-width: 768px) {
    .comment-list .children {
        margin-left: var(--space-6);
    }
}

.comment-list .children .comment {
    margin-top: var(--space-6);
    background: var(--color-gray-50);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
}

/* Comment Form */
.comment-form {
    margin-top: var(--space-8);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.comment-form .form-group {
    margin-bottom: var(--space-6);
}

.comment-form label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: 600;
    color: var(--color-gray-900);
}

.comment-form .required {
    color: var(--color-secondary);
}

.comment-form .form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    background: var(--color-white);
    color: var(--color-gray-800);
    transition: all var(--transition-fast);
}

.comment-form .form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.1);
}

.comment-form textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.form-submit {
    margin-top: var(--space-6);
}

.form-submit .btn {
    padding: var(--space-3) var(--space-8);
}

/* Alerts */
.alert {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    border-left: 4px solid;
}

.alert i {
    font-size: var(--font-size-lg);
}

.alert-info {
    background: rgba(72, 202, 228, 0.1);
    border-left-color: var(--color-primary-light);
    color: var(--color-gray-800);
}

.alert-warning {
    background: rgba(255, 107, 107, 0.1);
    border-left-color: var(--color-secondary);
    color: var(--color-gray-800);
}

.alert a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
}

.alert a:hover {
    text-decoration: underline;
}

.comments-protected {
    text-align: center;
    padding: var(--space-8);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    margin: var(--space-8) 0;
}

/* Responsive Comments */
@media (max-width: 768px) {
    .comments-header {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-4);
    }
    
    .comments-navigation {
        justify-content: space-between;
    }
    
    .comment-metadata {
        justify-content: center;
    }
}

/* Print Styles */
@media print {
    .comments-area {
        break-inside: avoid;
    }
    
    .comment-form,
    .comments-navigation,
    .reply-link {
        display: none !important;
    }
}
/* cạp nhat sua doi moi */
/* ============================================
   BLOG STYLES - MANHDUCMCI.COM
   Thêm vào cuối file style.css
============================================ */

/* 1. CONTAINER FIX - QUAN TRỌNG */
.container,
.wp-site-blocks,
.site-content {
    max-width: 1440px !important;
    margin-left: auto !important;
    margin-right: auto !important;
    width: 100% !important;
    padding-left: 20px !important;
    padding-right: 20px !important;
    box-sizing: border-box !important;
}

/* 2. FIX BLOG PAGE LAYOUT */
.blog .content-area,
.archive .content-area,
.search .content-area {
    max-width: 1440px !important;
    margin: 0 auto !important;
    padding: 30px 20px !important;
}

/* 3. SINGLE POST FIX */
.single-post .content-area,
.single .content-area {
    max-width: 1440px !important;
    margin: 0 auto !important;
    padding: 30px 20px !important;
}

/* 4. POST GRID LAYOUT */
.posts-container,
.blog-posts,
.wp-block-query {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)) !important;
    gap: 30px !important;
    margin-bottom: 40px !important;
}

/* 5. POST CARD STYLING */
article.post,
.wp-block-post {
    background: white !important;
    border-radius: 12px !important;
    overflow: hidden !important;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08) !important;
    transition: transform 0.3s ease !important;
}

article.post:hover {
    transform: translateY(-5px) !important;
    box-shadow: 0 10px 25px rgba(0,0,0,0.12) !important;
}

/* 6. POST IMAGE */
.post-thumbnail,
.wp-block-post-featured-image {
    width: 100% !important;
    height: 250px !important;
    overflow: hidden !important;
}

.post-thumbnail img,
.wp-block-post-featured-image img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    transition: transform 0.5s ease !important;
}

article.post:hover .post-thumbnail img {
    transform: scale(1.05) !important;
}

/* 7. POST CONTENT */
.entry-content,
.wp-block-post-content {
    padding: 20px !important;
}

.entry-title,
.wp-block-post-title {
    font-size: 1.4rem !important;
    line-height: 1.4 !important;
    margin-bottom: 10px !important;
}

.entry-title a {
    color: #333 !important;
    text-decoration: none !important;
}

.entry-title a:hover {
    color: #007cba !important;
}

/* 8. SINGLE POST SPECIFIC */
.single-post .entry-header {
    margin-bottom: 30px !important;
}

.single-post .entry-title {
    font-size: 2.2rem !important;
    line-height: 1.2 !important;
    margin-bottom: 20px !important;
}

/* 9. META INFO */
.entry-meta {
    color: #666 !important;
    font-size: 0.9rem !important;
    margin-bottom: 15px !important;
    display: flex !important;
    gap: 15px !important;
    flex-wrap: wrap !important;
}

/* 10. RESPONSIVE FIXES */
@media (max-width: 768px) {
    .posts-container,
    .blog-posts,
    .wp-block-query {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
    
    .single-post .entry-title {
        font-size: 1.8rem !important;
    }
    
    .container,
    .wp-site-blocks {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
}

/* 11. CLEAR FLOATS */
.clearfix::after {
    content: "";
    clear: both;
    display: table;
}