/* CSS Variables - Premium Red & Dark Luxury Theme - Nổi bật và Sang trọng */
:root {
    /* Primary Colors - Đỏ Pantone Sang Trọng */
    --primary-color: #C8102E;         /* Pantone 186 C - Đỏ chính */
    --primary-dark: #A00D26;          /* Đỏ đậm - hover */
    --primary-light: #E4002B;        /* Đỏ sáng */
    --primary-lighter: #FF4D6A;      /* Đỏ nhạt - accent nhẹ */
    
    /* Secondary Colors - Navy Đậm & Đen */
    --secondary-color: #0F172A;       /* Dark Navy - Nền tối sang trọng */
    --secondary-dark: #020617;         /* Near Black - Rất tối */
    --secondary-light: #1E293B;        /* Slate 800 - Dark nhẹ */
    --secondary-lighter: #334155;      /* Slate 700 - Text trên nền tối */
    
    /* Accent Colors - Xanh Navy & Gold cao cấp */
    --accent-color: #1E40AF;          /* Blue 800 - Navy đậm */
    --accent-light: #2563EB;          /* Blue 600 - Navy sáng */
    --accent-gold: #D4AF37;           /* Gold - Accent cao cấp */
    --accent-gold-light: #F4C430;     /* Gold sáng - hover */
    
    /* Text Colors */
    --text-primary: #0F172A;           /* Dark text */
    --text-secondary: #475569;         /* Secondary text */
    --text-light: #64748B;            /* Light text */
    --text-white: #F8FAFC;           /* White text on dark */
    --text-gold: #D4AF37;             /* Gold text */
    
    /* Background Colors - Nền trắng kết hợp tối */
    --bg-primary: #FFFFFF;             /* Trắng tinh khiết */
    --bg-secondary: #F8FAFC;          /* Off-white - nền phụ */
    --bg-tertiary: #F1F5F9;           /* Slate 100 - nền nhạt */
    --bg-dark: #0F172A;               /* Dark Navy - nền tối */
    --bg-darker: #020617;             /* Near Black - nền rất tối */
    --bg-gradient-dark: linear-gradient(135deg, #020617 0%, #0F172A 50%, #1E293B 100%);
    
    /* Border Colors */
    --border-color: #E2E8F0;          /* Slate 200 - viền nhạt */
    --border-dark: #334155;            /* Slate 700 - viền tối */
    --border-primary: rgba(200, 16, 46, 0.3);
    --border-gold: rgba(212, 175, 55, 0.5);
    
    /* Shadows - Premium Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.15);
    --shadow-colored: 0 8px 25px rgba(200, 16, 46, 0.25);
    --shadow-gold: 0 8px 25px rgba(212, 175, 55, 0.25);
    --shadow-dark: 0 8px 25px rgba(15, 23, 42, 0.4);
    
    /* Border Radius */
    --border-radius: 0.75rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    
    /* Font */
    --font-family: 'Inter', 'Nunito Sans', 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    
    /* Gradients - Premium Gradients */
    --gradient-primary: linear-gradient(135deg, #C8102E 0%, #E4002B 100%);
    --gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    --gradient-hero: linear-gradient(135deg, #020617 0%, #0F172A 50%, #1E3A5F 100%);
    --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #F4C430 50%, #D4AF37 100%);
    --gradient-premium: linear-gradient(135deg, #C8102E 0%, #0F172A 100%);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

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

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    text-align: center;
    position: relative;
    overflow: hidden;
    font-size: 1rem;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-colored);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.3);
    background: linear-gradient(135deg, #A00D26 0%, #C8102E 100%);
}

.btn-accent {
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(239, 68, 68, 0.3);
    background: linear-gradient(135deg, #B91C1C 0%, #DA1A32 100%);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: inset 0 0 0 0 var(--primary-color);
    transition: all 0.3s ease;
}

.btn-outline:hover {
    box-shadow: inset 0 0 0 2rem var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-outline-accent {
    background-color: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    box-shadow: inset 0 0 0 0 var(--accent-color);
    transition: all 0.3s ease;
}

.btn-outline-accent:hover {
    box-shadow: inset 0 0 0 2rem var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

.icon-square {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--primary-color); /* Màu xanh chủ đạo */
    border: 1px solid var(--primary-color);
    border-radius: 6px;
}

/* Neutralize .nav-link: make anchor appear as plain inline text
   - remove visual styles and pseudo-elements
   - preserve click behavior but show no pointer/underline/hover styles
*/
.nav-link {
    text-decoration: none !important;
    color: inherit !important;
    background: transparent !important;
    padding: 0 !important;
    margin: 0 !important;
    font-weight: inherit !important;
    font-size: inherit !important;
    line-height: inherit !important;
    cursor: default !important; /* show as normal text; change to pointer if you want clickable affordance */
}

.nav-link::before,
.nav-link::after {
    display: none !important;
    content: none !important;
}

.nav-link:hover,
.nav-link:focus,
.nav-link:active {
    color: inherit !important;
    background: transparent !important;
    text-decoration: none !important;
    box-shadow: none !important;
    transform: none !important;
}

.icon-square:hover { background: rgba(255,255,255,0.03); }

.lang-square { padding: 0 8px; font-weight:700; }

.lang-switch { display: inline-flex; gap: 0.35rem; }
.lang-switch .lang-btn { padding: 4px 8px; min-width: auto; }

@media (max-width: 900px) {
    .nav-menu.simple-menu { display: none; }
}

/* Mission Card Styles */
.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.mission-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.mission-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-colored);
}

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

.mission-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 3rem;
    font-weight: 700;
    color: var(--bg-tertiary);
    opacity: 0.5;
}

.mission-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.mission-description {
    color: var(--text-secondary);
    line-height: 1.7;
    transition: color 0.3s ease;
    text-align: justify;
    text-justify: inter-word;
    hyphens: auto;
    -webkit-hyphens: auto;
    -moz-hyphens: auto;
    -ms-hyphens: auto;
}

.mission-card:hover .mission-description {
    color: var(--text-primary);
}

/* Header Enhancement */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    position: relative;
    z-index: 1000;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.nav-brand:hover {
    transform: translateX(5px);
}

.logo-container {
    position: relative;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    animation: logoGlow 3s ease-in-out infinite alternate;
}

@keyframes logoGlow {
    0% { box-shadow: 0 0 10px rgba(8, 145, 178, 0.3); }
    100% { box-shadow: 0 0 20px rgba(8, 145, 178, 0.6); }
}

.logo {
    width: 30px;
    height: 30px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.brand-info h2 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-info p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
    margin: 0;
    padding: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    padding: 0.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(8, 145, 178, 0.2), transparent);
    transition: left 0.5s ease;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(8, 145, 178, 0.1);
    transform: translateY(-2px);
}

/* Dropdown Styles */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
    border: 1px solid rgba(8, 145, 178, 0.2);
}

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

.dropdown-menu a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 10px;
    margin: 0.2rem;
}

.dropdown-menu a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(5px);
}

/* Navigation Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-switch {
    display: inline-flex;
    gap: 0.5rem;
    align-items: center;
}

.lang-btn {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: var(--text-primary);
    padding: 6px 10px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.18s ease;
    min-width: 38px;
    text-align: center;
}

.lang-btn:hover {
    background: rgba(8,145,178,0.14);
    color: white;
    transform: translateY(-2px);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff;
    box-shadow: 0 6px 18px rgba(8,145,178,0.25);
}

.search-box {
    position: relative;
    overflow: hidden;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(8, 145, 178, 0.3);
    transition: all 0.3s ease;
}

.search-box:focus-within {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(8, 145, 178, 0.3);
}

.search-box input {
    border: none;
    outline: none;
    padding: 0.8rem 1rem;
    background: transparent;
    color: var(--text-primary);
    width: 200px;
    transition: width 0.3s ease;
}

.search-box input::placeholder {
    color: var(--text-secondary);
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: var(--primary-color);
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-box button:hover {
    background: var(--accent-color);
    transform: translateY(-50%) scale(1.1);
}

.cta-button {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(8, 145, 178, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(8, 145, 178, 0.4);
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(8, 145, 178, 0.3);
    transition: all 0.3s ease;
}

.nav-toggle:hover {
    background: rgba(8, 145, 178, 0.1);
    transform: scale(1.05);
}

.bar {
    width: 25px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.nav-toggle.active .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero {
    background: var(--gradient-secondary);
    padding: 8rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(8, 145, 178, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

/* Statistics Section */
.stats {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 4rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-colored);
    border-color: var(--primary-light);
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.stat-item:hover .stat-icon {
    transform: scale(1.1) rotate(5deg);
}

.stat-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.stat-item:hover .stat-label {
    color: var(--primary-color);
}

/* About/Mission Section */
.about {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-accent) 50%, var(--bg-tertiary) 100%);
    padding: 4rem 0;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 70% 30%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 30% 70%, rgba(8, 145, 178, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.mission-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid rgba(8, 145, 178, 0.1);
    overflow: hidden;
}

.mission-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.mission-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-colored);
    background: rgba(255, 255, 255, 0.95);
}

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

.mission-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.mission-card:hover .mission-icon {
    transform: scale(1.1) rotate(-5deg);
}

.mission-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mission-number {
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.mission-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.mission-card:hover .mission-title {
    color: var(--primary-color);
}

.mission-description {
    color: var(--text-secondary);
    line-height: 1.7;
    transition: color 0.3s ease;
    text-align: justify;
    text-justify: inter-word;
    hyphens: auto;
    -webkit-hyphens: auto;
    -moz-hyphens: auto;
    -ms-hyphens: auto;
}

.mission-card:hover .mission-description {
    color: var(--text-primary);
}

/* Search Section */
.search-section {
    background-color: var(--bg-primary);
    padding: 4rem 0;
}

.search-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    margin: 1rem 0;
}

.search-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.search-tag {
    padding: 0.5rem 1rem;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
}

.search-tag:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.search-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.search-link {
    display: block;
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    text-align: center;
}

.search-link:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.search-link span:first-child {
    display: block;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.search-link span:last-child {
    color: var(--text-secondary);
}

/* News Section */
.news {
    background-color: var(--bg-secondary);
    padding: 4rem 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.news-item {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.news-item:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 1.5rem;
}

.news-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary-color);
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    margin-bottom: 0.5rem;
}

.news-date {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.news-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.news-navigation {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.nav-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Partners Section - carousel tự động lặp, logo giữa zoom 1.15 */
.partners {
    background-color: var(--bg-primary);
    padding: 4rem 0;
}

.partners .section-header {
    margin-bottom: 1.75rem;
}

/* Partners - 6 ô cố định, khoảng cách +30%; chỉ phóng to ô giữa */
.partners-row {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem 1rem;
    border: 1px solid rgba(200, 16, 46, 0.15);
    border-radius: 1rem;
    background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 100%);
    box-shadow: 0 4px 16px rgba(200, 16, 46, 0.08);
    max-width: 100%;
}

.partner-slide {
    flex: 0 0 100px;
    width: 100px;
    min-width: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-slide:first-child {
    flex: 0 0 140px;
    width: 140px;
    min-width: 140px;
}

.partner-slide--center {
    /* Giữ nguyên kích thước ô, không đổi flex/width */
}

.partner-box {
    width: 100%;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    background: transparent;
    border: none;
    box-sizing: border-box;
    transition: transform 0.45s ease;
    transform: scale(1);
}

.partner-slide--center .partner-box {
    transform: scale(1.2);
}

.partner-box img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

.footer-section p {
    color: #cbd5e1;
    line-height: 1.6;
}

.contact-info {
    margin-top: 1rem;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #374151;
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.copyright {
    color: #9ca3af;
    font-size: 0.875rem;
}

/* Enhanced Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: all 0.3s ease;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
        padding: 2rem 0;
        border-radius: 0;
        z-index: 999;
        border-top: 2px solid var(--primary-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-item {
        margin: 0.5rem 0;
    }

    .nav-link {
        padding: 1rem 2rem;
        border-radius: 15px;
        margin: 0 1rem;
        background: rgba(8, 145, 178, 0.05);
    }

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

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: rgba(8, 145, 178, 0.1);
        border-radius: 10px;
        margin: 0.5rem 1rem;
        display: none;
    }

    .dropdown:hover .dropdown-menu {
        display: block;
    }

    .nav-actions {
        flex-direction: column;
        gap: 1rem;
        margin-top: 1rem;
    }

    .search-box {
        width: 90%;
        margin: 0 auto;
    }

    .search-box input {
        width: calc(100% - 2rem);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-brand {
        gap: 0.8rem;
    }

    .logo-container {
        width: 45px;
        height: 45px;
    }

    .brand-info h2 {
        font-size: 1.2rem;
    }

    .brand-info p {
        font-size: 0.75rem;
    }

    .hero {
        padding: 6rem 0 3rem;
    }

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

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .mission-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .partners-row {
        flex-wrap: wrap;
        justify-content: center;
    }
    .partner-slide { flex: 0 0 90px; width: 90px; min-width: 90px; }
    .partner-slide:first-child { flex: 0 0 126px; width: 126px; min-width: 126px; }
    .partner-box { height: 85px; }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .search-tags {
        flex-direction: column;
        align-items: center;
    }

    .search-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .stat-item,
    .mission-card {
        padding: 1.5rem;
    }

    .search-link {
        padding: 1.5rem;
    }
}

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

.hero-content,
.stat-item,
.mission-card,
.news-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
.search-tag:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }

/* Hover effect to scale elements */
.hover-scale {
    transition: transform 0.3s ease;
}

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

/* Hover effect for mission cards */
.mission-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mission-card:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* Enhanced hover effect for statistic cards */
.statistic-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.statistic-card:hover {
    transform: translateY(-5px) scale(1.05) rotate(1deg);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.2);
}