/* Basic Reset & Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth; /* For smooth scrolling on nav clicks */
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
    padding: 20px 0;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 1rem;
    color: #003366; /* Dark Blue */
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.8rem; }

p {
    margin-bottom: 1rem;
    font-size: 1rem;
}

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

ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.2em;
    position: relative;
}

ul li::before {
    content: '•'; /* Bullet character */
    color: #00509E; /* Accent Blue */
    font-weight: bold;
    display: inline-block;
    width: 1em;
    /* margin-left: -1.2em; Negative margin to pull it back */
    position: absolute;
    left: 0;
}


a {
    color: #00509E; /* Accent Blue */
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img.hero-image, img.content-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-top: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

video.hero-image, video.content-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-top: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* Header & Navigation */
header {
    background-color: #003366; /* Dark Blue */
    color: #fff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.logo h1 {
    margin: 0;
    font-size: 2.5rem; /* Larger for mobile */
    color: #fff;
}

.logo .subtitle {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: #ccc;
}

.tagline {
    font-size: 1rem;
    margin-bottom: 1rem;
    font-weight: bold;
    color: #FFD700; /* Gold accent for tagline */
    text-align: center;
}

nav ul {
    list-style: none;
    padding: 0;
    display: none; /* Hidden by default on mobile */
    flex-direction: column;
    width: 100%;
}

nav ul.active {
    display: flex; /* Show when active */
}

nav ul li {
    margin: 0.5rem 0;
}

nav ul li::before { /* Remove default bullet styling for nav */
    content: '';
    margin-left: 0;
}

nav ul li a {
    color: #fff;
    font-weight: bold;
    padding: 0.5rem 1rem;
    display: block;
    border-radius: 4px;
}

nav ul li a:hover, nav ul li a.active-link {
    background-color: #00509E; /* Accent Blue */
}

#menu-toggle {
    display: block; /* Show hamburger on mobile */
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    position: absolute;
    top: 20px;
    right: 20px;
}


/* Sections */
section {
    padding: 40px 0;
}

section#home {
    padding-top: 80px; /* Add padding to avoid overlap with sticky header */
    background-color: #e9ecef; /* Light grey for hero */
}

section h2 {
    margin-bottom: 20px;
}

.highlight-section {
    background-color: #e0eafc; /* Light blueish tint for some sections */
}

.section-divider {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0));
    margin: 20px auto;
    width: 80%;
}

.sub-heading {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #004080; /* Slightly darker blue for subheadings */
}

.breakthrough {
    font-size: 1.1rem;
    color: #007bff; /* Bright Blue */
    margin-top: 1rem;
}

/* Button */
.button {
    display: inline-block;
    background-color: #00509E; /* Accent Blue */
    color: #fff;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    margin-top: 1rem;
    transition: background-color 0.3s ease;
}

.button:hover {
    background-color: #003366; /* Darker Blue */
    color: #fff;
    text-decoration: none;
}

/* Footer */
footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 20px;
}

/* Responsive Design */

/* Tablet Styles */
@media (min-width: 768px) {
    .logo h1 {
        font-size: 2.8rem;
    }
    .tagline {
        font-size: 1.1rem;
    }
    #menu-toggle {
        display: none; /* Hide hamburger on tablet and desktop */
    }
    nav ul {
        display: flex;
        flex-direction: row;
        justify-content: center;
    }
    nav ul li {
        margin: 0 1rem;
    }
    section {
        text-align: left; /* Align text left for wider screens */
    }
    section#home, section {
         padding: 60px 0;
    }
    section#home {
        padding-top: 60px;
    }
    .hero-image, .content-image {
        display: block;
        margin-left: auto;
        margin-right: auto;
    }
}

/* Desktop Styles */
@media (min-width: 1024px) {
    header .container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }
    .logo {
        text-align: left;
    }
    .tagline {
        margin-bottom: 0; /* Reset margin for desktop layout */
        text-align: center;
        margin-left: auto; /* Pushes nav to the right of tagline if needed */
        padding-right: 20px;
    }
    nav {
        margin-left: 20px; /* Space between tagline and nav */
    }
    nav ul {
        width: auto; /* Allow nav to size based on content */
    }
    h1 { font-size: 3rem; }
    h2 { font-size: 2.5rem; }
    h3 { font-size: 2rem; }
    p { font-size: 1.1rem; }
}