/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: 'Segoe UI', Arial, sans-serif;
    color: #1a1a1a;
    background: #fff;
}

a {
    text-decoration: none;
}

/* Header */
header {
    background: #0d1a2b;
    padding: 20px 8%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    color: #fff;
    font-size: 20px;
}

nav a {
    color: #fff;
    margin-left: 25px;
    font-size: 14px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
nav a:hover {
    color: #d4af37;
}

/* Hero */
.hero {
    height: 500px;
    background: linear-gradient(rgba(13,26,43,0.7), rgba(13,26,43,0.7)),
                url('https://images.unsplash.com/photo-1581091012184-1c96c3edf9c9?auto=format&fit=crop&w=1500&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    padding: 0 8%;
    margin-top: 80px;
}

.hero h2 {
    font-size: 42px;
    margin-bottom: 15px;
    font-weight: 600;
}

.hero p {
    font-size: 18px;
    max-width: 700px;
}

/* Sections */
.section {
    padding: 80px 8%;
}

.section h3 {
    font-size: 28px;
    margin-bottom: 30px;
    color: #0d1a2b;
    text-align: center;
}

.grid {
    display: grid;
    grid-gap: 30px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card {
    background: #fff;
    border-radius: 6px;
    padding: 25px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.card h4 {
    margin-bottom: 12px;
    color: #0d1a2b;
    font-size: 18px;
    font-weight: 600;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 28px;
    background: #d4af37;
    color: #000;
    font-weight: 600;
    border-radius: 4px;
}
.btn:hover {
    background: #c39c2c;
}

/* Footer */
footer {
    background: #0d1a2b;
    color: #bbb;
    text-align: center;
    padding: 30px 8%;
    font-size: 14px;
}