* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Arial, sans-serif;
}

body {
    background: #0b3d91;
    color: #fff;
}

/* =========================
   NAVBAR
========================= */
.top-nav {
    background: #003a8f;
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.top-nav .logo {
    font-weight: bold;
    font-size: 18px;
}

/* HAMBURGER */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    color: #fff;
    cursor: pointer;
}

/* NAV LINKS */
.top-nav nav {
    display: flex;
    align-items: center;
}

.top-nav nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 20px;
    font-size: 14px;
    font-weight: bold;
}

.top-nav nav a:hover {
    text-decoration: underline;
}

/* =========================
   HERO
========================= */
.hero {
    height: calc(100vh - 70px);
    background: url('../images/bg.jpg') center/cover no-repeat;
    position: relative;
}

.hero .overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 70, 120, 0.60);
}

.hero-content {
    position: relative;
    height: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.logo-big {
    width: 250px;
    margin-bottom: 20px;
}

.hero-content h1 {
    font-size: 52px;
    font-weight: bold;
    margin-bottom: 15px;
}

.hero-content p {
    max-width: 700px;
    font-size: 18px;
    margin-bottom: 30px;
}

/* =========================
   BUTTONS
========================= */
.buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 30px;
    font-weight: bold;
    text-decoration: none;
    border-radius: 5px;
}

.btn-red {
    background: #e60000;
    color: #fff;
}

.btn-outline {
    border: 2px solid #fff;
    color: #fff;
}

.btn:hover {
    opacity: 0.9;
}

/* =========================
   FOOTER
========================= */
footer {
    background: #002f6c;
    text-align: center;
    padding: 10px;
    font-size: 12px;
}

/* =========================
   MOBILE RESPONSIVE
========================= */
@media (max-width: 768px) {

    .top-nav {
        padding: 15px 20px;
    }

    .menu-toggle {
        display: block;
    }

    .top-nav nav {
        display: none;
        position: absolute;
        top: 60px;
        right: 0;
        background: #003a8f;
        width: 100%;
        flex-direction: column;
        text-align: center;
        padding: 10px 0;
        z-index: 999;
    }

    .top-nav nav.show {
        display: flex;
    }

    .top-nav nav a {
        margin: 12px 0;
        font-size: 16px;
    }

    .logo-big {
        width: 180px;
    }

    .hero-content h1 {
        font-size: 28px;
    }

    .hero-content p {
        font-size: 15px;
    }

    .buttons {
        flex-direction: column;
        width: 100%;
    }

    .buttons .btn {
        width: 100%;
        text-align: center;
    }
}