:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --secondary: #f59e0b;
    --text-main: #334155;
    --text-dark: #0f172a;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --border: #e2e8f0;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 12px;
}

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

body {
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
}

header {
    background: var(--primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.navbar {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
}

.logo {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 1px;
}

.logo span {
    color: var(--secondary);
}

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

.nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: 0.3s;
}

.nav-links a:hover {
    color: var(--white);
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
    cursor: pointer;
    border: none;
    display: inline-block;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--primary);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
}

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: 5rem 1.5rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.1rem;
    color: #cbd5e1;
    margin-bottom: 2rem;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--text-dark);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.card h3 {
    margin-bottom: 0.75rem;
    color: var(--primary);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--primary);
        padding: 1.5rem;
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-btns {
        flex-direction: column;
    }
}
/* Hero Background with Dark Overlay */
.hero-international {
    background: linear-gradient(rgba(15, 23, 42, 0.75), rgba(15, 23, 42, 0.85)), 
                url('https://images.unsplash.com/photo-1523240795612-9a054b0db644?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    padding: 7rem 1.5rem;
    text-align: center;
    color: var(--white);
}

.hero-tag {
    display: inline-block;
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid var(--accent);
    color: #60a5fa;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
}

/* Bottom Navigation CTA Bar */
.bottom-nav-bar {
    background: var(--primary);
    padding: 2.5rem 1.5rem;
    margin-top: 4rem;
    border-top: 4px solid var(--accent);
    text-align: center;
}

.bottom-nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.bottom-nav-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-nav-back {
    background: transparent;
    border: 2px solid #cbd5e1;
    color: var(--white);
}

.btn-nav-back:hover {
    background: var(--white);
    color: var(--primary);
}