/* Base styles and variables */
:root {
    --primary-color: #ff6b81;
    --secondary-color: #6c5ce7;
    --accent-color: #fdcb6e;
    --text-color: #2d3436;
    --text-light: #636e72;
    --bg-color: #ffffff;
    --bg-light: #f9f9f9;
    --bg-dark: #1e272e;
    --font-main: 'Kanit', 'Sarabun', sans-serif;
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Import Thai fonts */
@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@300;400;500;600;700&family=Sarabun:wght@300;400;500;700&display=swap');

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

html {
    scroll-behavior: smooth;
}

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

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

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

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

ul {
    list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

section {
    padding: 80px 0;
}

/* Header styles */
.site-header {
    background-color: var(--bg-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 15px 0;
}

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

.logo a {
    display: block;
}

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

.main-nav li {
    margin: 0 15px;
}

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

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.main-nav a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 101;
}

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

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Hero Section */
.hero {
    padding: 160px 0 80px;
    background-color: var(--bg-light);
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(135deg, rgba(255, 107, 129, 0.1) 0%, rgba(108, 92, 231, 0.1) 100%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background-color: rgba(255, 107, 129, 0.1);
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background-color: rgba(108, 92, 231, 0.1);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: var(--text-light);
}

.cta-button {
    display: inline-block;
    padding: 14px 32px;
    background-color: var(--primary-color);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(255, 107, 129, 0.2);
}

.cta-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    color: white;
    box-shadow: 0 6px 8px rgba(108, 92, 231, 0.2);
}

/* Features Section */
.features {
    background-color: var(--bg-color);
    position: relative;
}

.features h2 {
    position: relative;
}

.features h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    margin: 0 auto 20px;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-weight: 600;
}

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

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

.step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 50px;
}

.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;
    margin-right: 25px;
    flex-shrink: 0;
}

.step-content h3 {
    margin-bottom: 10px;
}

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

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

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

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

.faq-item {
    margin-bottom: 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-light);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
}

.faq-item.active .faq-question {
    background-color: var(--primary-color);
    color: white;
}

.faq-item.active .faq-question::after {
    content: '-';
}

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

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 1000px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

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

.cta-section h2 {
    color: white;
}

.cta-section p {
    max-width: 700px;
    margin: 0 auto 30px;
    color: rgba(255, 255, 255, 0.8);
}

/* Footer */
.site-footer {
    background-color: var(--bg-light);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
}

.footer-nav {
    margin-right: 60px;
    margin-bottom: 30px;
}

.footer-nav h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

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

.footer-nav ul li a {
    color: var(--text-light);
}

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

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Media queries */
@media screen and (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.7rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--bg-color);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        padding: 80px 30px;
        transition: var(--transition);
        z-index: 100;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .main-nav li {
        margin: 15px 0;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .step-number {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-nav {
        margin-right: 0;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .cta-button {
        width: 100%;
    }
}