:root {
    --primary-color: #2b5d84; /* Based on your logo */
    --secondary-color: #173753;
    --text-color: #333333;
    --bg-color: #f7f9fa;
    --white: #ffffff;
    --whatsapp-color: #25D366;
    --whatsapp-hover: #128C7E;
    --transition: all 0.3s ease;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header & Navigation */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo img {
    height: 50px; /* Adjust according to your logo's proportion */
    width: auto;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav ul li a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-color);
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

/* Main Content Area */
main {
    flex-grow: 1;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 3rem 2rem;
}

.page-title {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 2rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.content-placeholder {
    background-color: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    text-align: center;
    color: #666;
    border: 1px dashed #ccc;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: 2rem;
    margin-top: auto;
}

footer p {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: var(--whatsapp-color);
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background-color: var(--whatsapp-hover);
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    nav ul {
        gap: 1rem;
    }
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 25px;
    }
}