:root {
    --primary-color: #25D366; /* WhatsApp Green */
    --secondary-color: #128C7E; /* WhatsApp Dark Green */
    --dark-bg: #0b141a; /* WhatsApp Dark Mode BG */
    --light-bg: #ffffff;
    --text-color: #111b21;
    --text-light: #e9edef;
    --accent-color: #34B7F1;
    --gray-light: #f0f2f5;
    --card-bg: #ffffff;
    --font-main: 'Outfit', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--gray-light);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: var(--light-bg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    letter-spacing: -0.5px;
}

.nav a {
    text-decoration: none;
    color: var(--text-color);
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-primary {
    background-color: var(--primary-color);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}

/* Hero */
.hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, #dcf8c6 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.highlight {
    color: var(--primary-color);
}

.hero-text p {
    font-size: 1.2rem;
    color: #54656f;
    margin-bottom: 2rem;
    max-width: 500px;
}

.btn-cta {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(18, 140, 126, 0.3);
}

.btn-cta:hover {
    background-color: #0e6f63;
    transform: translateY(-3px);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.15));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* Features */
.features {
    padding: 5rem 0;
    background-color: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid #f0f0f0;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card img {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
    object-fit: contain;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

/* How it works */
.how-it-works {
    padding: 5rem 0;
    background-color: #f0f2f5;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.steps {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
}

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

/* Contact */
.contact {
    padding: 5rem 0;
    background: var(--dark-bg);
    color: white;
}

.contact-wrapper {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.contact-info {
    flex: 1;
}

.contact-info h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.contact-form {
    flex: 1;
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    color: var(--text-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: #54656f;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e9edef;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s;
    font-family: var(--font-main);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-submit:hover {
    background-color: #1da851;
}

.status-message {
    margin-top: 1rem;
    text-align: center;
    font-weight: 600;
}

.status-success {
    color: var(--secondary-color);
}

.status-error {
    color: #ea0038;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .contact-wrapper {
        flex-direction: column;
    }

    .steps {
        flex-direction: column;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .nav a {
        margin-left: 0;
    }
}