/* --- Reset & Basic Styles (Copied & Adjusted) --- */
:root {
    --primary-color: #005fbe;    /* Ngọc Cường Blue */
    --secondary-color: #f39c12; /* Ngọc Cường Orange */
    --accent-color: #ffe082;     /* Light Yellow/Gold accent */
    --text-light: #ffffff;
    --text-dark: #212529;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --body-font: 'Open Sans', sans-serif;
    --heading-font: 'Open Sans', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--body-font); line-height: 1.7; color: var(--text-dark); background-color: #fff; font-size: 15px; }
.container { width: 90%; max-width: 1140px; margin: 0 auto; padding: 0 15px; }
h1, h2, h3, h4 { font-family: var(--heading-font); font-weight: 700; margin-bottom: 1.2rem; line-height: 1.4; color: var(--primary-color); }
h1 { font-size: 2.6rem; }
h2 { font-size: 2.1rem; text-align: center; margin-bottom: 3rem; padding-bottom: 0.5rem; position: relative; }
h2::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 80px; height: 4px; background-color: var(--secondary-color); border-radius: 2px; }
h3 { font-size: 1.5rem; margin-bottom: 1.5rem; /* More space below h3 */ color: var(--text-dark); }
h4 { font-size: 1.15rem; margin-bottom: 0.8rem; color: var(--text-dark); font-weight: 600; }
p { margin-bottom: 1rem; color: var(--text-muted); }
a { color: var(--primary-color); text-decoration: none; transition: color 0.3s ease; }
a:hover { color: var(--secondary-color); }
ul, ol { list-style: none; padding: 0; margin: 0; }
img { max-width: 100%; height: auto; display: block; }
section { padding: 60px 0; border-bottom: 1px solid var(--border-color); }
section:last-of-type { border-bottom: none; }
.text-light { color: var(--text-light) !important; }
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border-width: 0; }

/* --- Button Styles (Copied) --- */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 30px; font-size: 1rem; font-weight: 700; text-align: center; border-radius: 30px; cursor: pointer; transition: all 0.3s ease; border: none; text-transform: uppercase; letter-spacing: 0.5px; line-height: 1.5; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.btn i { margin-right: 8px; }
.btn-sm { padding: 8px 18px; font-size: 0.9rem; }
.btn-lg { padding: 15px 40px; font-size: 1.1rem; }
.btn-primary { background-color: var(--primary-color); color: var(--text-light); }
.btn-primary:hover { background-color: #004a9a; color: var(--text-light); transform: translateY(-2px); box-shadow: 0 6px 12px rgba(0, 95, 190, 0.3); }
.btn-secondary { background-color: var(--secondary-color); color: var(--text-light); }
.btn-secondary:hover { background-color: #d35400; color: var(--text-light); transform: translateY(-2px); box-shadow: 0 6px 12px rgba(243, 156, 18, 0.3); }
.btn-outline-primary { background-color: transparent; color: var(--primary-color); border: 2px solid var(--primary-color); }
.btn-outline-primary:hover { background-color: var(--primary-color); color: #fff; }
.btn-outline-light { background-color: transparent; color: var(--text-light); border: 2px solid var(--text-light); }
.btn-outline-light:hover { background-color: var(--text-light); color: var(--primary-color); }

/* --- Header Styles (Copied & Adjusted) --- */
.site-header { background-color: #fff; padding: 10px 0; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 5px rgba(0,0,0,0.1); transition: box-shadow 0.3s ease; }
.site-header.scrolled { box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.header-container { display: flex; justify-content: space-between; align-items: center; position: relative; }
.header-logo a { display: flex; align-items: center; color: var(--primary-color); font-weight: 700; font-size: 1.3rem; text-decoration: none; }
.header-logo img { height: 45px; margin-right: 10px; width: auto; }
.main-nav { display: flex; }
.main-nav ul { display: flex; list-style: none; margin: 0; padding: 0; }
.main-nav li { margin-left: 10px; }
.main-nav a { color: var(--text-dark); font-weight: 600; padding: 10px 12px; border-radius: 5px; font-size: 0.9rem; white-space: nowrap; transition: color 0.3s ease, background-color 0.3s ease; display: flex; align-items: center; }
.main-nav a i { margin-right: 6px; font-size: 1em; color: var(--primary-color); transition: color 0.3s ease; }
.main-nav a:hover { color: var(--primary-color); background-color: rgba(0, 95, 190, 0.08); }
.main-nav a:hover i { color: var(--secondary-color); }
/* Style for active link */
.main-nav a.active { color: #fff; background-color: var(--primary-color); }
.main-nav a.active i { color: #fff; }
.menu-toggle { display: none; background: none; border: none; font-size: 1.8rem; color: var(--primary-color); cursor: pointer; padding: 5px; z-index: 1001; }

/* --- Hero Section (Shipping Page) --- */
.hero-shipping-section {
    background-size: cover;
    background-position: center center;
    position: relative;
    padding: 80px 0; /* Adjust padding */
    color: var(--text-light);
}
.hero-shipping-section .overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(rgba(0, 95, 190, 0.8), rgba(0, 40, 80, 0.9)); /* Blue overlay */
    z-index: 1;
}
.hero-shipping-content {
    position: relative;
    z-index: 2;
}
.hero-shipping-image {
    max-width: 500px; /* Control size of the top image */
    margin: 0 auto 20px auto;
    animation: pulse 3s infinite ease-in-out; /* Optional animation */
}
.shipping-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #fff;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}
.shipping-subtitle {
    font-size: 1.4rem;
    color: #e0f2ff;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.hero-shipping-sub-image {
    max-width: 350px; /* Control size of the bottom image */
    margin: 0 auto;
}

/* --- Shipping Policy Section --- */
.shipping-policy-section {
    background-color: #fff; /* White background for policy details */
}
.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}
.policy-column {
    background-color: var(--light-gray); /* Light gray background for columns */
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}
.policy-header {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 1rem;
}
.policy-icon {
    flex-shrink: 0;
    margin-right: 20px;
    width: 80px; /* Size for single icon */
    text-align: center;
}
.policy-icon img {
    max-height: 70px;
    width: auto;
    display: inline-block;
}
.policy-icon.multi-icon { /* Style for multiple small icons */
    width: 80px;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    justify-content: center;
    align-items: center;
}
.policy-icon.multi-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
    width: 35px; /* Fit 2 icons per row roughly */
    text-align: center;
}

.policy-column h3 {
    color: var(--primary-color);
    font-size: 1.6rem; /* Larger heading for policy type */
    margin-bottom: 0;
}

.policy-details {
    padding-left: 0;
}
.policy-details li {
    display: flex;
    align-items: flex-start; /* Align icon top */
    margin-bottom: 1.5rem;
}
.policy-details li i {
    font-size: 1.4rem;
    color: var(--secondary-color); /* Orange icon */
    margin-right: 15px;
    margin-top: 3px;
    width: 25px;
    text-align: center;
    flex-shrink: 0;
}
.policy-details li div strong {
    display: block;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
}
.policy-details li div p {
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}
.policy-details li div .highlight {
    color: var(--primary-color);
    font-weight: bold;
}

.shipping-notice {
    margin-top: 40px;
    padding: 15px 20px;
    background-color: #fff3cd; /* Light yellow background */
    border: 1px solid #ffeeba;
    border-left: 5px solid var(--secondary-color); /* Orange left border */
    border-radius: 5px;
    color: #856404; /* Dark yellow text */
    text-align: center;
}
.shipping-notice i {
    margin-right: 8px;
}
.shipping-notice a {
    color: #856404;
    font-weight: bold;
    text-decoration: underline;
}
.shipping-notice a:hover {
    color: #533f03;
}


/* --- Footer Section (Copied Styles) --- */
.footer-section { background-color: #2a3035; color: #adb5bd; padding: 60px 0 25px 0; font-size: 0.95rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 45px; margin-bottom: 45px; }
.footer-column h4 { color: #fff; margin-bottom: 1.8rem; font-size: 1.15rem; position: relative; padding-bottom: 1rem; text-transform: uppercase; letter-spacing: 1px; }
.footer-column h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 60px; height: 3px; background-color: var(--primary-color); border-radius: 1.5px; }
.footer-column h4 i { margin-right: 10px; width: 20px; text-align: center; }
.footer-column p, .footer-column li { margin-bottom: 1rem; color: #e0e0e0; line-height: 1.8; }
.footer-column a { color: #e0e0e0; }
.footer-column a:hover { color: #fff; text-decoration: underline; }
.footer-column strong { color: #f8f9fa; }
.footer-column ul li { padding-left: 0; }
.footer-column ul li a i { margin-right: 8px; font-size: 0.8rem; color: var(--primary-color); width: 15px; text-align: center; }
.footer-column .support-list { margin-top: 5px; padding-left: 0; }
.footer-column .support-list li { margin-bottom: 0.6rem; }
.social-icons-footer { margin-top: 1.2rem; }
.social-icons-footer a { color: #e0e0e0; font-size: 2rem; margin-right: 20px; transition: color 0.3s ease, transform 0.3s ease; display: inline-block; }
.social-icons-footer a:hover { color: var(--primary-color); transform: translateY(-3px); }
.footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid #495057; font-size: 0.9rem; color: #adb5bd; }
.footer-bottom a { color: #ced4da; font-weight: 600; }

/* --- Floating Action Buttons (Copied Styles) --- */
.floating-cta { position: fixed; bottom: 25px; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.9rem; box-shadow: 0 6px 18px rgba(0,0,0,0.3); z-index: 999; transition: transform 0.3s ease, background-color 0.3s ease; text-decoration: none; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
.floating-cta:hover { transform: scale(1.1); }
.phone-cta { right: 25px; background-color: var(--secondary-color); }
.phone-cta:hover { background-color: #d35400; }
.zalo-cta { right: 100px; background-color: #0068ff; padding: 12px; }
.zalo-cta svg { width: 30px; height: 30px; fill: #fff; }
.zalo-cta:hover { background-color: #0053cc; }

/* --- Animations --- */
@keyframes pulse { 0%, 100% { opacity: 0.9; } 50% { opacity: 1; transform: scale(1.03);} }
.hero-shipping-image { animation: pulse 3s infinite ease-in-out; }

/* --- Responsive --- */
@media (max-width: 992px) {
    h2 { font-size: 1.9rem; }
    .policy-grid { grid-template-columns: 1fr; } /* Stack policy columns */
}
@media (max-width: 768px) {
    body { padding-top: 0; font-size: 14px;}
    .site-header { position: relative; /* Static on mobile */ }
    /* Mobile Menu Styles from previous version needed here */
    .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; width: auto; background-color: #fff; box-shadow: 0 5px 10px rgba(0,0,0,0.1); padding: 10px 0; border-top: 1px solid var(--border-color); z-index: 1100; }
    .main-nav.is-active { display: flex; }
    .main-nav ul { flex-direction: column; align-items: stretch; }
    .main-nav li { margin: 0; width: 100%; }
    .main-nav a { padding: 15px 20px; border-bottom: 1px solid #eee; justify-content: flex-start; border-radius: 0; font-size: 1rem; }
    .main-nav li:last-child a { border-bottom: none; }
    .menu-toggle { display: block; }

    section { padding: 40px 0; }
    .hero-shipping-section { padding: 60px 0; }
    .shipping-title { font-size: 2.5rem; }
    .shipping-subtitle { font-size: 1.2rem; }
    .hero-shipping-image { max-width: 70%; }
    .hero-shipping-sub-image { max-width: 60%; }

    .footer-grid { grid-template-columns: 1fr; }
    .floating-cta { width: 50px; height: 50px; font-size: 1.6rem; bottom: 20px; }
    .phone-cta { right: 20px; }
    .zalo-cta { right: 85px; padding: 8px;}
    .zalo-cta svg { width: 26px; height: 26px;}
}
@media (max-width: 480px) {
    .shipping-title { font-size: 2rem; }
    .shipping-subtitle { font-size: 1.1rem; }
    .policy-column { padding: 20px; }
    .policy-column h3 { font-size: 1.4rem; }
    .policy-details li div p { font-size: 0.9rem; }
}