:root {
    --primary: #25D366;
    /* WhatsApp Green */
    --primary-dark: #128C7E;
    --secondary: #075E54;
    --text: #111b21;
    --text-light: #54656f;
    --bg: #ffffff;
    --bg-alt: #f0f2f5;
    --white: #ffffff;
    --border: #e9edef;
    --max-width: 1200px;
    --header-height: 80px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: var(--bg);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

ul {
    list-style: none;
}

/* Header */
header {
    background: var(--white);
    height: var(--header-height);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

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

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

.cta-button {
    background: var(--primary);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: 24px;
    font-weight: 600 !important;
    transition: background 0.2s;
}

.cta-button:hover {
    background: var(--primary-dark);
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Main Content */
main {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height) - 300px);
    /* Adjust for footer */
}

section {
    padding: 80px 20px;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
}

h1,
h2,
h3 {
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text);
}

h1 {
    font-size: 3rem;
    font-weight: 800;
}

h2 {
    font-size: 2.2rem;
    margin-bottom: 40px;
    text-align: center;
}

p {
    margin-bottom: 20px;
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.step-card {
    text-align: center;
    padding: 20px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

/* Footer */
footer {
    background: var(--secondary);
    color: var(--white);
    padding: 60px 20px 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-column h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
    opacity: 0.9;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column a {
    opacity: 0.8;
}

.footer-column a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
    font-size: 0.9rem;
}

/* Utilities */
.text-center {
    text-align: center;
}

.bg-alt {
    background-color: var(--bg-alt);
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

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

    h1 {
        font-size: 2.2rem;
    }
}