@import url('https://fonts.googleapis.com/css2?family=Encode+Sans:wght@300;400;600;700;800&display=swap');

:root {
    --primary-color: #E31B21;
    --bg-color: #F5EBE1;
    --text-color: #333333;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Encode Sans', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Hero */
.hero {
    position: relative;
    width: 100%;
    height: 600px;
    /* Non-vh height */
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}

.hero img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.7;
}

.hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px;
    color: var(--white);
    max-width: 900px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-content p.sapo {
    font-size: 20px;
    font-weight: 400;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

/* Navigation Menu */
.sticky-nav {
    position: sticky;
    top: 0;
    background-color: var(--white);
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 15px 0;
    transition: var(--transition);
}

.nav-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    list-style: none;
    flex-wrap: wrap;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 14px;
    padding: 8px 15px;
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Sections */
.article-section {
    padding: 80px 0;
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

.article-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.ambassador-card {
    background: var(--white);
    border-radius: 20px;
    padding: 50px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 40px;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.ambassador-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 10px;
    height: 100%;
    background-color: var(--primary-color);
}

.ambassador-info {
    flex: 1;
}

.ambassador-info h2 {
    color: var(--primary-color);
    font-size: 32px;
    margin-bottom: 20px;
    font-weight: 700;
}

.quote-mark {
    font-size: 120px;
    position: absolute;
    top: -20px;
    right: 20px;
    opacity: 0.05;
    font-family: serif;
    color: var(--primary-color);
}

.ambassador-content p {
    margin-bottom: 20px;
    font-size: 18px;
}

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

/* Key Highlights Section Styles */
.highlights-box {
    background: rgba(227, 27, 33, 0.05);
    border-left: 4px solid var(--primary-color);
    padding: 20px;
    margin-top: 30px;
    border-radius: 0 10px 10px 0;
}

.highlights-box h3 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-transform: uppercase;
}

/* Conclusion */
.conclusion {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 100px 0;
    text-align: center;
    margin-top: 100px;
}

.conclusion h2 {
    font-size: 42px;
    margin-bottom: 30px;
}

.conclusion p {
    font-size: 22px;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Footer (VnBusiness) */
footer {
    padding: 40px 0;
    text-align: center;
    background-color: var(--white);
    font-weight: 600;
}

/* Animation */
@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }

    50% {
        transform: translateY(-10px) rotate(2deg);
    }

    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

.quote-mark {
    animation: float 6s ease-in-out infinite;
}

.ambassador-card:hover {
    transform: translateY(-5px);
}

.sticky-nav.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 36px;
    }

    .ambassador-card {
        flex-direction: column;
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .hero {
        height: 500px;
    }

    .hero-content h1 {
        font-size: 28px;
    }

    .hero-content p.sapo {
        font-size: 16px;
    }

    .sticky-nav {
        padding: 10px 0;
    }

    .nav-links {
        gap: 10px;
    }

    .nav-links a {
        font-size: 12px;
        padding: 5px 10px;
    }

    .article-section {
        padding: 40px 0;
    }

    .ambassador-info h2 {
        font-size: 24px;
    }
}