:root {
    --primary-color: #0b1f3a;
    --accent-color: #0077cc;
    --text-color: #333333;
    --bg-color: #ffffff;
    --secondary-bg: #f5f8fa;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body { 
    font-family: var(--font-stack); 
    color: var(--text-color); 
    line-height: 1.6; 
    background-color: var(--bg-color); 
}

a { 
    color: var(--accent-color); 
    text-decoration: none; 
    transition: all 0.2s ease;
}

a:hover { 
    text-decoration: underline; 
}

/* Header & Nav */
header { 
    background: var(--primary-color); 
    color: #fff; 
    padding: 1rem 5%; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    position: sticky; 
    top: 0; 
    z-index: 1000; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header .logo a { 
    font-size: 1.5rem; 
    font-weight: bold; 
    color: #fff; 
    text-decoration: none;
}

nav ul { 
    list-style: none; 
    display: flex; 
    align-items: center;
    gap: 1.5rem; 
}

nav ul li { 
    position: relative; 
}

nav ul li a { 
    color: #fff; 
    font-weight: 500; 
    text-decoration: none;
    padding: 0.5rem 0;
    display: block;
}

nav ul li a:hover {
    color: #ccc;
    text-decoration: none;
}

/* Sub-menu Desktop */
nav ul li ul { 
    display: none; 
    position: absolute; 
    top: 100%; 
    left: 0; 
    background: #fff; 
    box-shadow: 0 4px 12px rgba(0,0,0,0.15); 
    min-width: 250px; 
    flex-direction: column; 
    border-radius: 4px;
    overflow: hidden;
    z-index: 100;
}

nav ul li:hover ul { 
    display: flex; 
}

nav ul li ul li a { 
    padding: 12px 20px; 
    display: block; 
    color: var(--text-color); 
    border-bottom: 1px solid #eee; 
}

nav ul li ul li:last-child a {
    border-bottom: none;
}

nav ul li ul li a:hover { 
    background: var(--secondary-bg); 
    color: var(--accent-color);
}

/* Header CTA */
.header-call { 
    background: var(--accent-color); 
    color: #fff; 
    padding: 10px 20px; 
    border-radius: 4px; 
    font-weight: bold; 
    display: inline-block;
}

.header-call:hover { 
    background: #005fa3; 
    text-decoration: none; 
    color: #fff; 
}

/* Hero */
.hero { 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center; 
    text-align: center; 
    padding: 5rem 5%; 
    background: var(--secondary-bg); 
}

.hero h1 { 
    font-size: 2.8rem; 
    margin-bottom: 1.5rem; 
    color: var(--primary-color); 
    line-height: 1.2;
}

.hero p { 
    font-size: 1.2rem; 
    max-width: 800px; 
    margin-bottom: 2rem; 
}

.hero img { 
    width: 100%; 
    max-width: 800px; 
    height: auto; 
    border-radius: 8px; 
    margin-bottom: 2rem; 
    object-fit: cover; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    display: block;
}

.btn { 
    display: inline-block; 
    background: var(--accent-color); 
    color: #fff; 
    padding: 15px 35px; 
    font-size: 1.2rem; 
    border-radius: 4px; 
    font-weight: bold; 
    transition: background 0.2s;
}

.btn:hover { 
    background: #005fa3; 
    text-decoration: none; 
    color: #fff; 
}

/* Content Section */
.content-section { 
    padding: 4rem 5%; 
    max-width: 1200px; 
    margin: 0 auto; 
    display: flex; 
    flex-direction: column;
    gap: 3rem; 
}

.content-block { 
    margin-bottom: 1rem; 
}

.content-block h2 { 
    color: var(--primary-color); 
    margin-bottom: 1.5rem; 
    font-size: 2rem; 
}

.content-block h3 { 
    color: var(--primary-color); 
    margin-bottom: 1rem; 
    font-size: 1.5rem; 
    margin-top: 2rem;
}

.content-block p { 
    margin-bottom: 1.5rem; 
    font-size: 1.05rem;
}

.content-block img { 
    width: 100%; 
    height: auto; 
    border-radius: 8px; 
    object-fit: cover; 
    display: block;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin: 2.5rem 0;
}

/* FAQ */
.faq {
    background: var(--secondary-bg);
    padding: 2rem;
    border-radius: 8px;
}

.faq h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.faq p {
    margin-bottom: 1.5rem;
}
.faq p:last-child {
    margin-bottom: 0;
}

/* Breadcrumbs */
.breadcrumbs { 
    padding: 1rem 5%; 
    background: var(--secondary-bg); 
    font-size: 0.95rem; 
    border-bottom: 1px solid #ddd;
}

.breadcrumbs a { 
    color: var(--accent-color); 
}

/* Footer */
footer { 
    background: var(--primary-color); 
    color: #fff; 
    padding: 4rem 5% 2rem; 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 3rem; 
}

footer a { 
    color: #ccc; 
}

footer h3 { 
    margin-bottom: 1.5rem; 
    font-size: 1.3rem;
}

footer ul { 
    list-style: none; 
}

footer ul li { 
    margin-bottom: 0.8rem; 
}

footer p {
    margin-bottom: 0.8rem;
}

.copyright { 
    text-align: center; 
    padding: 1.5rem; 
    background: #071526; 
    color: #aaa; 
    font-size: 0.9rem;
}

/* Mobile Menu */
.menu-toggle { 
    display: none; 
    font-size: 1.8rem; 
    cursor: pointer; 
    color: #fff; 
    user-select: none;
}

.submenu-toggle {
    display: none;
}

@media (max-width: 768px) {
    .menu-toggle { 
        display: block; 
    }
    
    nav ul { 
        display: none; 
        flex-direction: column; 
        position: absolute; 
        top: 100%; 
        left: 0; 
        right: 0; 
        background: var(--primary-color); 
        padding: 0;
        gap: 0;
    }
    
    nav ul.active { 
        display: flex; 
    }
    
    nav ul li {
        width: 100%;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    nav ul li a {
        padding: 1rem 5%;
    }

    nav ul li ul { 
        position: static; 
        box-shadow: none; 
        display: none; 
        min-width: 100%;
        border-radius: 0;
        background: rgba(0,0,0,0.1);
    }
    
    nav ul li.active ul { 
        display: flex; 
    }
    
    nav ul li ul li a {
        padding: 0.8rem 5% 0.8rem 10%;
        color: #fff;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    
    nav ul li ul li a:hover {
        background: transparent;
        color: var(--accent-color);
    }

    .submenu-toggle {
        display: inline-block;
        float: right;
        font-size: 1.2rem;
        padding: 0 1rem;
        cursor: pointer;
    }

    .hero {
        padding: 3rem 5%;
    }

    .hero h1 { 
        font-size: 2rem; 
    }
    
    .content-section {
        padding: 3rem 5%;
    }
}

/* Mobile Sticky Call */
.mobile-sticky-call { 
    display: none; 
    position: fixed; 
    bottom: 0; 
    left: 0; 
    right: 0; 
    background: var(--accent-color); 
    color: #fff; 
    text-align: center; 
    padding: 15px; 
    font-size: 1.2rem; 
    font-weight: bold; 
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
}

.mobile-sticky-call:hover {
    text-decoration: none;
    color: #fff;
    background: #005fa3;
}

@media (max-width: 768px) {
    .mobile-sticky-call { 
        display: block; 
    }
    body { 
        padding-bottom: 60px; 
    }
}