/* styles.css */

/* --- VARIABLES (The UNH Brand) --- */
:root {
    --primary: #003594; /* UNH Blue */
    --secondary: #202020; /* Dark Gray for text */
    --accent: #D6001C; /* UNH Red for highlights */
    --light: #f8f9fa; /* Off-white background */
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0,0,0,0.1); /* Subtle shadow for 3D effect */
}

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

body {
    font-family: 'Roboto', sans-serif; /* Clean, modern font */
    color: var(--secondary);
    background-color: var(--light);
    line-height: 1.7;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: 'Merriweather', serif; /* Professional serif for headings */
    color: var(--primary);
    margin-bottom: 1rem;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }

/* --- NAVIGATION BAR (Professional Sticky Header) --- */
.navbar {
    background: var(--white);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Merriweather', serif;
}

.nav-links { display: flex; gap: 30px; }

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #555;
    padding-bottom: 5px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
    border-bottom: 2px solid var(--accent);
}

/* --- HERO SECTION (The "Big" Intro) --- */
.hero {
    background: linear-gradient(rgba(0, 53, 148, 0.9), rgba(0, 53, 148, 0.8)), url('photos/campus.jpg'); /* Adds blue tint over image */
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 100px 5%;
    text-align: center;
}

.hero h1 { color: var(--white); font-size: 3rem; margin-bottom: 10px; }
.hero p { font-size: 1.2rem; max-width: 700px; margin: 0 auto 30px auto; opacity: 0.9; }

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--accent);
    color: var(--white);
    border-radius: 5px;
    font-weight: bold;
    letter-spacing: 1px;
}
.btn:hover { background: #b00017; transform: translateY(-2px); }

/* --- MAIN CONTENT LAYOUT --- */
.container {
    max-width: 1100px;
    margin: 50px auto;
    padding: 0 20px;
    flex: 1; /* Pushes footer down */
}

/* --- GRID SYSTEM FOR RESEARCH/GALLERY --- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }

/* --- CARDS (For Research/Papers) --- */
.card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary);
    transition: transform 0.3s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }

/* --- FOOTER --- */
footer {
    background: #1a1a1a;
    color: #aaa;
    text-align: center;
    padding: 40px 0;
    margin-top: auto;
}
footer a { color: var(--white); }

/* --- MOBILE RESPONSIVENESS --- */
@media (max-width: 768px) {
    .nav-links { display: none; } /* Mobile menu simplified for now */
    .grid-2 { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2rem; }
}