/* --- General & Reset --- */
:root {
    --primary-color: #0a2d4d; /* Dark Blue */
    --secondary-color: #f4f7f6; /* Off-white */
    --accent-color: #3498db; /* Bright Blue */
    --text-color: #333;
    --light-text-color: #ffffff;
    --heading-font: 'Poppins', sans-serif;
    --body-font: 'Poppins', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    color: var(--text-color);
    line-height: 1.7;
    background-color: #fff;
}

/* --- Utility & Layout --- */
.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

section {
    padding: 6rem 0;
}

h1, h2, h3 {
    font-family: var(--heading-font);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

h1 { font-size: 2.8rem; line-height: 1.2; }
h2 { font-size: 2.2rem; text-align: center; }
h3 { font-size: 1.4rem; }

p {
    margin-bottom: 1rem;
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--light-text-color);
    padding: 12px 28px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.cta-button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}


/* --- Header & Navigation --- */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.nav-links .cta-button {
    color: var(--light-text-color);
}
.nav-links .cta-button:hover {
    color: var(--light-text-color);
    background-color: #2980b9;
}


/* --- Hero Section --- */
#hero {
    background: linear-gradient(rgba(10, 45, 77, 0.8), rgba(10, 45, 77, 0.8)), url('https://images.unsplash.com/photo-1456513080510-7bf3a84b82f8?q=80&w=1973&auto=format&fit=crop') no-repeat center center/cover;
    color: var(--light-text-color);
    text-align: center;
    padding: 8rem 0;
}

#hero h1 {
    color: var(--light-text-color);
}

.subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto 2rem auto;
}

/* --- About Section --- */
#about {
    text-align: center;
    max-width: 800px;
}

/* --- Features Section --- */
#features {
    background-color: var(--secondary-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: #fff;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.07);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

/* --- Emerging Markets Section --- */
#emerging-markets {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    text-align: center;
}

#emerging-markets h2 {
    color: var(--light-text-color);
}
#emerging-markets .container {
    max-width: 800px;
}


/* --- Services Section --- */
#services {
    text-align: center;
}

.services-list {
    text-align: left;
    max-width: 500px;
    margin: 2rem auto 0 auto;
    background-color: var(--secondary-color);
    padding: 2rem;
    border-radius: 8px;
}

.services-list ul {
    list-style: none;
    padding-left: 0;
}

.services-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #ddd;
    font-weight: 600;
}

.services-list li:before {
    content: '✓';
    color: var(--accent-color);
    margin-right: 10px;
    font-weight: bold;
}

.services-list li:last-child {
    border-bottom: none;
}


/* --- Contact Section --- */
#contact {
    background-color: var(--secondary-color);
    text-align: center;
}

#contact p {
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Footer --- */
footer {
    background: var(--primary-color);
    color: var(--light-text-color);
    text-align: center;
    padding: 1.5rem 0;
}


/* --- Responsive Design --- */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    section { padding: 4rem 0; }

    .nav-links {
        display: none; /* Simple hiding for this example. A real project would use JavaScript for a hamburger menu. */
    }

    header .container {
        justify-content: center;
    }
    .logo {
        flex-grow: 1;
        text-align: center;
    }

    #hero {
        padding: 6rem 0;
    }
}