/* Base styles */
:root {
    --primary: #00BFA6;
    --primary-light: #F0FFFC;
    --primary-dark: #00A896;
    --text: #2D3436;
    --text-light: #636E72;
    --background: #FFFFFF;
    --card-bg: #F0FFFC;
    --shadow: 0 10px 20px rgba(0, 191, 166, 0.1);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--background);
    font-size: 16px;
}

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

img {
    max-width: 100%;
    height: auto;
}

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

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

/* Navigation */
.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    position: sticky;
    top: 0;
    background-color: var(--background);
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand span {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text);
    transition: var(--transition);
}

.menu-toggle.active span:first-child {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Header */
header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 4rem 1.5rem;
}

.header-content h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1.25rem;
    font-weight: 700;
}

.header-content p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 500px;
}

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

.header-visual svg {
    max-width: 100%;
    height: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
}

.primary-btn {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 191, 166, 0.3);
}

.primary-btn:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 6px 20px rgba(0, 191, 166, 0.4);
    transform: translateY(-2px);
    color: white;
}

/* Sections */
section {
    padding: 5rem 1.5rem;
}

section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 700;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 191, 166, 0.15);
}

.feature-card svg {
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
}

/* How To Section */
.section-how-to {
    background-color: var(--primary-light);
}

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

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.step-item:last-child {
    margin-bottom: 0;
}

.step-icon {
    width: 3rem;
    height: 3rem;
    background-color: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-light);
}

/* Start Section */
.section-start {
    background: linear-gradient(135deg, var(--primary) 0%, #00D4BD 100%);
    color: white;
    text-align: center;
    border-radius: var(--radius);
    margin: 1.5rem;
    padding: 4rem 2rem;
}

.section-start h2 {
    color: white;
    margin-bottom: 1rem;
}

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

.section-start p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

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

.section-start .primary-btn:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

/* Footer */
footer {
    padding: 4rem 1.5rem 2rem;
    background-color: var(--primary-light);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-brand span {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--primary);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

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

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

.copyright {
    text-align: center;
    color: var(--text-light);
    font-size: 0.875rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 191, 166, 0.1);
}

/* Responsive Styles */
@media (max-width: 992px) {
    header {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .header-content {
        order: 1;
        text-align: center;
    }
    
    .header-content p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .header-visual {
        order: 0;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background-color: white;
        padding: 0;
        gap: 0;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        opacity: 0;
    }
    
    .nav-links.active {
        max-height: 300px;
        opacity: 1;
    }
    
    .nav-links a {
        padding: 1rem 1.5rem;
        width: 100%;
        display: block;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .header-content h1 {
        font-size: 2.5rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .footer-links {
        width: 100%;
        justify-content: center;
    }
    
    .step-item {
        align-items: center;
        text-align: left;
    }
}

@media (max-width: 576px) {
    section h2 {
        font-size: 2rem;
    }
    
    .header-content h1 {
        font-size: 2rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .section-start {
        margin: 0;
        border-radius: 0;
    }
}