:root {
    --primary-color: #25D366; /* WhatsApp Green */
    --primary-dark: #128C7E;
    --secondary-color: #075E54; /* Dark Teal */
    --background-dark: #111B21; /* WhatsApp Dark Mode BG */
    --text-color: #333333;
    --text-light: #F0F2F5;
    --white: #FFFFFF;
    --gray-light: #F0F2F5;
    --gray-medium: #E9EDEF;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
}

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

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

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

.lang-selector {
    margin: 0 15px;
    font-size: 14px;
    color: #54656f;
    display: flex;
    align-items: center;
    gap: 5px;
}

.lang-selector a {
    color: #54656f;
    text-decoration: none;
    font-weight: 500;
    padding: 2px 5px;
    border-radius: 4px;
    transition: all 0.2s;
}

.lang-selector a:hover {
    background-color: var(--gray-medium);
    color: var(--primary-dark);
}

.lang-selector a.active {
    background-color: var(--gray-medium);
    color: var(--primary-dark);
    font-weight: 700;
}

.btn-primary-small {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: background-color 0.3s;
}

.btn-primary-small:hover {
    background-color: var(--primary-dark);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--background-dark) 0%, var(--secondary-color) 100%);
    color: var(--white);
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.2s, background-color 0.3s;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid rgba(255,255,255,0.3);
    transition: all 0.3s;
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.1);
    border-color: var(--white);
}

/* How it works */
.how-it-works {
    padding: 100px 0;
    background-color: var(--white);
    text-align: center;
}

.how-it-works h2 {
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--background-dark);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.step-card {
    padding: 20px;
}

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

.step-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.step-card p {
    color: #666;
}

/* Pricing */
.pricing {
    padding: 100px 0;
    background-color: var(--gray-light);
    text-align: center;
}

.pricing h2 {
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--background-dark);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    position: relative;
    overflow: hidden;
}

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

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.badge {
    position: absolute;
    top: 20px;
    right: -30px;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 5px 30px;
    transform: rotate(45deg);
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--background-dark);
    margin-bottom: 30px;
}

.price span {
    font-size: 1rem;
    color: #666;
    font-weight: 400;
}

.features {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.features li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
}

.features li::before {
    content: "✓";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.btn-outline {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s;
    width: 100%;
}

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

.btn-primary-full {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s;
    width: 100%;
}

.btn-primary-full:hover {
    background-color: var(--primary-dark);
}

/* FAQ */
.faq {
    padding: 100px 0;
    background-color: var(--white);
}

.faq h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--background-dark);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 30px;
    border-bottom: 1px solid var(--gray-medium);
    padding-bottom: 20px;
}

.faq-item h3 {
    margin-bottom: 15px;
    color: var(--background-dark);
}

/* Footer */
footer {
    background-color: var(--background-dark);
    color: var(--white);
    padding: 50px 0;
    text-align: center;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .steps-grid, .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none; /* Simple mobile menu fix */
    }

    nav {
        justify-content: center;
        flex-wrap: wrap;
        height: auto;
        padding: 15px 0;
        gap: 15px;
    }

    .lang-selector {
        order: 2;
        margin: 10px 0;
    }
    
    .btn-primary-small {
        order: 3;
    }
    
    .logo {
        width: 100%;
        text-align: center;
        margin-bottom: 10px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
}

/* Authentication Styles */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 70px); /* Subtract header height */
    padding: 120px 20px 60px; /* Top padding to account for fixed header */
    background-color: var(--gray-light);
}

.auth-card {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.auth-card h1 {
    margin-bottom: 30px;
    color: var(--background-dark);
    font-size: 2rem;
}

.google-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background-color: var(--white);
    color: #757575;
    border: 1px solid #dadce0;
    padding: 12px;
    border-radius: 4px;
    font-weight: 500;
    font-family: 'Roboto', sans-serif;
    cursor: pointer;
    width: 100%;
    margin-bottom: 20px;
    transition: background-color 0.2s;
    text-decoration: none;
}

.google-btn:hover {
    background-color: #f7fafe;
    border-color: #d2e3fc;
}

.google-btn img {
    width: 18px;
    height: 18px;
}

.divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
    color: #666;
    font-size: 0.9rem;
}

.divider::before, .divider::after {
    content: "";
    flex: 1;
    border-bottom: 1px solid var(--gray-medium);
}

.divider::before {
    margin-right: 10px;
}

.divider::after {
    margin-left: 10px;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--gray-medium);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.error-message {
    color: #d32f2f;
    font-size: 0.9rem;
    margin-top: 10px;
    display: none;
}

/* Dashboard Styles */
.dashboard-info {
    text-align: left;
    margin-bottom: 30px;
}

.info-item {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--gray-medium);
}

.info-label {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 5px;
}

.info-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--background-dark);
}

.badge-plan {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: capitalize;
}

.badge-free { background-color: var(--gray-medium); color: #666; }
.badge-individual { background-color: #e3f2fd; color: #1976d2; }
.badge-business { background-color: #e8f5e9; color: #2e7d32; }