/* Reset & Variables */
:root {
    --primary-color: #333333;
    /* Dark Grey */
    --secondary-color: #F5F5F5;
    /* Light Grey */
    --accent-color: #4A90E2;
    /* Corporate Blue - placeholder for accent */
    --text-color: #333333;
    --light-text: #666666;
    --background-white: #FFFFFF;
    --font-family: 'Sarabun', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --spacing-section: 80px;
}

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

body {
    font-family: var(--font-family);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--background-white);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: opacity, transform;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Header */
.main-header {
    background-color: var(--background-white);
    padding: 20px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo-img {
    height: 50px;
    /* Adjust based on logo aspect ratio */
    width: auto;
    display: block;
}

.main-header nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

h2 {
    font-size: 2rem;
    margin-bottom: 40px;
    text-align: center;
}

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

/* Hero Section */
/* Hero Section */
.hero-section {
    width: 100%;
    height: 100vh;
    text-align: center;
    background-color: var(--secondary-color);
    background-image: url('../img/hero-banner-v2.png');
    background-size: cover;
    background-position: center;
    position: relative;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
}

/* Explicit white text for hero */
.hero-content h1 {
    color: #ffffff;
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

.hero-sub {
    font-size: 1.2rem;
    color: #ffffff;
    /* White text */
    max-width: 800px;
    margin: 0 auto 40px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);
}

/* Buttons */
.cta-button-primary {
    display: inline-block;
    background-color: #e18b22;
    /* Custom Orange */
    color: #000;
    /* Black Text */
    padding: 18px 40px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.2rem;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.cta-button-primary:hover {
    background-color: #d1750b;
    transform: translateY(-2px);
}

.cta-button-secondary {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
}

.cta-button-small {
    background-color: transparent;
    border: 1px solid var(--primary-color);
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Value Section */
.value-section {
    padding: var(--spacing-section) 0;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    text-align: center;
}

.icon-placeholder {
    width: 60px;
    height: 60px;
    background-color: #ddd;
    /* Visual Placeholder */
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
    font-size: 0.8rem;
}

/* Trust Section */
.trust-section {
    padding: 60px 0;
    background-color: #fafafa;
    text-align: center;
}

.logo-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    opacity: 0.6;
    /* Subtle look */
}

.logo-item {
    background-color: #eee;
    padding: 10px 20px;
    border-radius: 4px;
}

/* Process Section */
.process-section,
.advantage-section,
.testimonial-section,
.final-cta-section {
    padding: var(--spacing-section) 0;
    text-align: center;
}

.process-image-container {
    margin-top: 40px;
    display: flex;
    justify-content: center;
}

.process-img {
    max-width: 100%;
    /* Responsive width */
    height: auto;
    border-radius: 8px;
    /* Optional rounded corners */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    /* Optional shadow */
}

/* Lead Section */
.lead-section {
    padding: var(--spacing-section) 0;
    text-align: center;
}

.lead-form {
    max-width: 500px;
    margin: 30px auto;
    display: flex;
    gap: 10px;
}

/* Feature Icons */
.feature-icon {
    width: 80px;
    height: auto;
    margin-bottom: 20px;
}

/* Advantage Section Grid */
.advantage-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-item {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Testimonial Section Grid */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

/* Big CTA Button */
.cta-button-big {
    display: inline-block;
    background-color: #e18b22;
    color: #fff;
    padding: 20px 50px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1.3rem;
    transition: all 0.3s;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.cta-button-big:hover {
    background-color: #fff;
    color: #e18b22;
    border: 2px solid #e18b22;
}

/* Lead Section Form */
.lead-form input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.privacy-notice {
    font-size: 0.8rem;
    color: #999;
}

/* Footer */
.main-footer {
    background-color: #0F0F0F;
    /* Deep Piano Black */
    color: #FFFFFF;
    padding: 80px 0 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    height: 45px;
    width: auto;
    margin-bottom: 25px;
    filter: brightness(0) invert(1);
    /* Force white logo if needed, or keep original */
    opacity: 0.9;
}

.brand-tagline {
    color: #999;
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 300px;
}

.main-footer h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 30px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #e18b22;
    /* Gold/Orange Accent */
}

.contact-list,
.footer-links {
    list-style: none;
    padding: 0;
}

.contact-list li,
.footer-links li {
    margin-bottom: 18px;
    color: #BBB;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.footer-icon {
    margin-right: 12px;
    display: inline-block;
    width: 20px;
    text-align: center;
}

.footer-links a {
    color: #BBB;
    position: relative;
    padding-bottom: 2px;
}

.footer-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: 0;
    left: 0;
    background-color: #e18b22;
    transition: width 0.3s ease;
}

.footer-links a:hover {
    color: #FFF;
}

.footer-links a:hover::after {
    width: 100%;
}

.copyright {
    text-align: left;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
    color: #555;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }

    .main-header nav ul {
        display: none;
        /* Simplification for placeholder: hide nav on mobile */
    }

    .process-steps {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
        margin: 10px 0;
    }

    .hero-section {
        padding: 60px 0;
    }

    .lead-form {
        flex-direction: column;
    }
}