:root {
    --primary-color: #00BCD4;
    --secondary-color: #673AB7;
    --accent-color: #E0F7FA;
    --dark-accent: #0097A7;
    --text-color: #212121;
    --light-text: #757575;
    --dark-bg: #263238;
    --light-bg: #FFFFFF;
    --border-radius: 6px;
    --box-shadow: 0 4px 12px rgba(0, 188, 212, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Arial', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-bg);
    font-size: 16px;
}

.main-container {
    overflow: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

ul {
    list-style: none;
}

h1, h2, h3, h4 {
    line-height: 1.3;
    margin-bottom: 15px;
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
}

h4 {
    font-size: 1.1rem;
    color: var(--light-bg);
    margin-bottom: 20px;
}

p {
    margin-bottom: 15px;
    color: var(--light-text);
}

section {
    padding: 60px 0;
}

/* Buttons */
.button {
    display: inline-block;
    padding: 12px 25px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.primary-button {
    background: var(--primary-color);
    color: white;
    border: 2px solid var(--primary-color);
    box-shadow: var(--box-shadow);
}

.primary-button:hover {
    background: var(--dark-accent);
    border-color: var(--dark-accent);
    transform: translateY(-3px);
}

.secondary-button {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.secondary-button:hover {
    background: rgba(0, 188, 212, 0.1);
    transform: translateY(-3px);
}

.large {
    padding: 15px 35px;
    font-size: 1.1rem;
}

/* Navigation */
.top-nav {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo a {
    display: flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.3rem;
}

.logo-svg {
    margin-right: 10px;
}

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

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

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

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

.nav-button {
    background: var(--primary-color);
    color: white !important;
    padding: 8px 15px;
    border-radius: var(--border-radius);
}

.nav-button:hover {
    background: var(--dark-accent);
}

.menu-toggle {
    display: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
}

.menu-toggle span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

.menu-toggle span:nth-child(1) {
    top: 0;
}

.menu-toggle span:nth-child(2) {
    top: 8px;
}

.menu-toggle span:nth-child(3) {
    top: 16px;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero-section {
    padding: 70px 0 50px;
    position: relative;
    background-color: var(--accent-color);
}

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

.hero-content {
    flex: 1;
    min-width: 300px;
    margin-right: 20px;
}

.hero-visual {
    flex: 1;
    min-width: 300px;
    margin-top: 30px;
}

.hero-graphic {
    max-width: 100%;
    height: auto;
}

.action-buttons {
    margin-top: 30px;
}

.action-buttons .button {
    margin-right: 15px;
    margin-bottom: 15px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-box {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid rgba(0, 188, 212, 0.1);
}

.feature-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0, 188, 212, 0.2);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
}

/* How It Works Section */
.how-section {
    background: var(--accent-color);
    position: relative;
}

.steps-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 50px 0;
    flex-wrap: wrap;
}

.step-box {
    flex: 1;
    min-width: 220px;
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    position: relative;
    z-index: 2;
    margin-bottom: 20px;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: bold;
    margin: 0 auto 15px;
}

.step-icon {
    width: 100px;
    height: 60px;
    margin: 15px auto 0;
}

.step-connector {
    flex: 0.3;
    max-width: 50px;
    z-index: 1;
}

.cta-center {
    text-align: center;
    margin-top: 40px;
}

/* Action Section */
.action-section {
    background-color: white;
    text-align: center;
}

.action-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 50px;
    border-radius: var(--border-radius);
    color: white;
    box-shadow: var(--box-shadow);
    max-width: 800px;
    margin: 0 auto;
}

.action-card h2 {
    color: white;
    margin-bottom: 20px;
}

.action-card h2:after {
    background: white;
}

.action-card p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.action-card .button {
    margin-bottom: 30px;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 20px;
}

.tags span {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    margin: 5px;
    font-size: 0.9rem;
}

/* FAQ Section */
.faq-section {
    background-color: var(--accent-color);
}

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

.accordion-item {
    background: white;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    overflow: hidden;
}

.accordion-header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.accordion-header h3 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 0;
}

.accordion-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.accordion-content {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    padding: 0 20px 20px;
    max-height: 1000px;
}

/* Footer */
footer {
    background: var(--dark-bg);
    color: white;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand a {
    display: flex;
    align-items: center;
    color: white;
    margin-bottom: 15px;
    font-weight: 700;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.tags-footer {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.7rem;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px 0;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        flex-direction: column;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 10px 0;
    }
    
    .hero-content {
        margin-right: 0;
    }
    
    .step-connector {
        display: none;
    }
    
    .action-card {
        padding: 30px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    section {
        padding: 40px 0;
    }
    
    .feature-box, 
    .step-box {
        padding: 20px;
    }
    
    .action-buttons .button {
        display: block;
        margin-right: 0;
        margin-bottom: 15px;
    }
}