:root {
    /* Color Palette */
    --color-navy: #0A192F;
    --color-navy-light: #112240;
    --color-green: #00B16A;
    --color-green-dark: #008751;
    --color-silver: #E2E8F0;
    --color-silver-light: #F8FAFC;
    --color-silver-dark: #94A3B8;
    --color-white: #FFFFFF;
    --color-black: #0F172A;
    --color-border: #CBD5E1;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions & Shadows */
    --transition: all 0.3s ease;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-silver-light);
    color: var(--color-black);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex-grow: 1;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-navy);
}

a {
    text-decoration: none;
    color: var(--color-navy);
    transition: var(--transition);
}

a:hover {
    color: var(--color-green);
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
    font-family: var(--font-body);
}

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

.btn-primary:hover {
    background-color: var(--color-green-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-navy);
    border: 2px solid var(--color-navy);
}

.btn-secondary:hover {
    background-color: var(--color-navy);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Navbar */
.navbar {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
}

.navbar-brand span {
    color: var(--color-green);
}

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

.nav-links a {
    font-weight: 500;
    color: var(--color-navy-light);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--color-green);
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--color-navy);
}

/* Footer */
.footer {
    background-color: var(--color-navy);
    color: var(--color-silver);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: var(--color-white);
    margin-bottom: 1.2rem;
    font-size: 1.2rem;
}

.footer-col p {
    margin-bottom: 1rem;
    opacity: 0.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--color-silver-dark);
}

.footer-links a:hover {
    color: var(--color-green);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    color: var(--color-silver-dark);
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #1EBE5D;
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--color-white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-md);
    }
    .nav-links.show {
        display: flex;
    }
    .nav-toggle {
        display: block;
    }
}