/* 
* whtspapi.com - Landing Page Styles
* A modern, clean stylesheet with WhatsApp-inspired colors
*/

/* Base Styles and Variables */
:root {
    --primary-color: #25D366;
    --primary-dark: #128C7E;
    --primary-light: #DCF8C6;
    --accent-color: #34B7F1;
    --dark-color: #075E54;
    --text-color: #333333;
    --light-text: #f5f5f5;
    --gray-light: #f8f9fa;
    --gray: #eeeeee;
    --gray-dark: #666;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

section {
    padding: 80px 0;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 20px;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 15px;
}

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

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

ul {
    list-style: none;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-dark);
    border: 2px solid var(--primary-color);
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    position: relative;
    display: inline-block;
    margin-bottom: 15px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-header p {
    color: var(--gray-dark);
    max-width: 600px;
    margin: 0 auto;
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 15px 0;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
}

.logo-text {
    color: var(--primary-dark);
}

.logo-dot {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-menu li {
    margin-left: 25px;
}

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

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

.nav-btn {
    padding: 8px 15px;
    border-radius: var(--border-radius);
    font-weight: 500;
}

.login-btn {
    color: var(--primary-dark);
    border: 1px solid var(--primary-color);
}

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

.register-btn {
    background-color: var(--primary-color);
    color: white !important;
}

.register-btn:hover {
    background-color: var(--primary-dark);
    color: white !important;
}

.nav-toggle {
    display: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding-top: 160px;
    padding-bottom: 80px;
    background-color: var(--gray-light);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    margin-bottom: 20px;
    color: var(--dark-color);
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--gray-dark);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Features Section */
.features {
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--gray-light);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* How It Works Section */
.how-it-works {
    background-color: var(--gray-light);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.step-number {
    background-color: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    flex-shrink: 0;
}

.step-content h3 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.step-image {
    margin-top: 50px;
    text-align: center;
}

.step-image img {
    max-width: 80%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Pricing Section */
.pricing-cards {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.pricing-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 40px;
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--gray);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.premium {
    border: 2px solid var(--primary-color);
}

.pricing-tag {
    position: absolute;
    top: -15px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
}

.pricing-header h3 {
    color: var(--dark-color);
}

.price {
    margin-top: 15px;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    vertical-align: top;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.period {
    font-size: 1rem;
    color: var(--gray-dark);
}

.pricing-features {
    margin-bottom: 30px;
}

.pricing-features ul li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.pricing-features i {
    color: var(--primary-color);
    margin-right: 10px;
}

.pricing-cta {
    text-align: center;
}

/* API Examples Section */
.api-examples {
    background-color: var(--gray-light);
}

.examples-content {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.code-tabs {
    display: flex;
    border-bottom: 1px solid var(--gray);
}

.tab {
    padding: 15px 20px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.tab.active {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-bottom: 3px solid var(--primary-color);
}

.code-blocks {
    padding: 20px;
}

.code-block {
    display: none;
}

.code-block.active {
    display: block;
}

.code-block h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

pre {
    background-color: #282c34;
    padding: 20px;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: 20px;
}

code {
    color: #abb2bf;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.api-features {
    padding: 20px;
    background-color: var(--primary-light);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.api-features ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

.api-features ul li {
    margin-bottom: 10px;
    list-style-type: disc;
}

/* Use Cases Section */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.use-case {
    text-align: center;
    padding: 30px;
    background-color: var(--gray-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.use-case:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

.use-case-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.use-case h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.use-case-image {
    text-align: center;
    margin-top: 50px;
}

.use-case-image img {
    max-width: 80%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* CTA Section */
.cta {
    background-color: var(--primary-dark);
    color: white;
    text-align: center;
}

.cta-content h2 {
    color: white;
}

.cta-content p {
    max-width: 600px;
    margin: 0 auto 30px;
}

/* Footer */
footer {
    background-color: #f8f9fa;
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    margin-bottom: 20px;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-col h4 {
    margin-bottom: 25px;
    color: var(--dark-color);
    position: relative;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-col ul li {
    margin-bottom: 15px;
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-info i {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--gray);
}

.disclaimer {
    font-size: 0.8rem;
    color: var(--gray-dark);
}

/* Responsive Styles */
@media (max-width: 992px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        padding: 30px 0;
        transition: var(--transition);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .pricing-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .pricing-card {
        width: 100%;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    .step {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
}