:root {
    --bg: #f4f6f8;
    --card: #ffffff;
    --dark: #1f2a37;
    --primary: #2c3e50;
    --accent: #34495e;
    --text: #333;
    --radius: 12px;
}

html, body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    padding-top: 70px;
}

nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--accent);
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 12px;
    z-index: 1000;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 6px 10px;
    border-radius: 6px;
}

nav a:hover {
    background: rgba(255,255,255,0.15);
}

header {
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 20px;
    margin: 0;
}

header img {
    width: 60px;
    transition: transform 0.2s;
}

header img:hover {
    transform: scale(1.1);
}

main {
    background: var(--card);
    width: min(900px, 92%);
    margin: 30px auto 100px;
    padding: 25px;
    border-radius: var(--radius);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

main img {
    width: 100%;
    border-radius: var(--radius);
    margin-top: 15px;
}

.contact-grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.contact-box {
    flex: 1;
    min-width: 280px;
}

iframe {
    width: 100%;
    height: 320px;
    border: 0;
    border-radius: var(--radius);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background: var(--primary);
    color: white;
    text-align: center;
    padding: 10px;
    font-size: 14px;
}

@media (max-width: 700px) {
    header {
        flex-direction: column;
        text-align: center;
    }

    nav {
        flex-wrap: wrap;
    }
}