/* Global Resets & Base Styles */
body {
    margin: 0;
    font-family: 'Inter', 'Open Sans', sans-serif; /* Ensure Inter is primary, Open Sans as fallback */
    font-size: 16px;
    line-height: 1.6;
    color: #374151; /* Body text color */
    background-color: #F8F9FA; /* Light background */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: #007BFF; /* Primary blue for links */
}

a:hover {
    text-decoration: underline;
}

.container {
    width: 90%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn-primary {
    background-color: #007BFF; /* Primary blue */
    color: #FFFFFF;
}

.btn-primary:hover {
    background-color: #0056b3; /* Darker blue on hover */
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    text-decoration: none;
}

.btn-large {
    padding: 15px 30px;
    font-size: 18px;
}

/* Header & Navigation */
header {
    background-color: #FFFFFF; /* White header background */
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

header nav.container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    padding-bottom: 15px;
}

.logo a {
    font-family: 'Montserrat', sans-serif; /* Example for logo */
    font-size: 24px;
    font-weight: bold;
    color: #1F2937; /* Dark heading color */
}
.logo a:hover {
    text-decoration: none;
}

.nav-links {
    list-style: none;
    display: flex;
}

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

.nav-links a {
    color: #374151; /* Body text color for nav links */
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #007BFF; /* Blue on hover */
    text-decoration: none;
}

.mobile-menu-toggle {
    display: none; /* Hidden on desktop */
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: #1F2937;
}

/* Hero Section */
.hero-section {
    background-color: #FFFFFF; 
    padding: 80px 0;
    text-align: center;
}

.hero-section h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 42px; 
    color: #1F2937;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-section .sub-headline {
    font-size: 18px;
    color: #495057;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Sections General Styling */
section {
    padding: 70px 0;
}

section:nth-child(even) {
    background-color: #FFFFFF; /* White for sections like benefits, cases if hero is light gray */
}

section h2 {
    font-family: 'Montserrat', sans-serif;
    text-align: center;
    font-size: 32px;
    color: #1F2937;
    margin-bottom: 50px;
}

.section-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 40px auto;
    color: #495057;
    font-size: 17px;
}

/* How It Works Section */
.how-it-works-section .steps-container {
    display: flex;
    justify-content: space-around;
    gap: 30px;
    text-align: center;
}

.how-it-works-section .step {
    flex-basis: 30%;
    padding: 20px;
    background-color: #FFFFFF; /* Card background */
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.how-it-works-section .step-icon {
    font-size: 40px; /* Placeholder styling */
    margin-bottom: 15px;
    color: #007BFF;
}

.how-it-works-section .step h3 {
    font-size: 22px;
    color: #1F2937;
    margin-bottom: 10px;
}

/* Benefits Section */
.benefits-section .benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.benefits-section .benefit-item {
    background-color: #FFFFFF;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    text-align: center;
}

.benefits-section .benefit-icon {
    font-size: 36px; /* Placeholder styling */
    margin-bottom: 15px;
    color: #007BFF;
}

.benefits-section .benefit-item h3 {
    font-size: 20px;
    color: #1F2937;
    margin-bottom: 10px;
}

/* Pricing Section */
.pricing-section .pricing-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    background-color: #FFFFFF;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.pricing-section .pricing-main-thesis {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 20px;
}

.pricing-section .pricing-details p {
    margin-bottom: 15px;
    color: #495057;
}

.pricing-section .pricing-cta {
    margin-top: 30px;
}

/* Cases Section */
.cases-section .cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.cases-section .case-item {
    background-color: #FFFFFF;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.cases-section .case-icon-placeholder {
    font-size: 40px;
    text-align: center;
    margin-bottom: 15px;
    color: #007BFF;
}

.cases-section .case-item h3 {
    font-size: 20px;
    color: #1F2937;
    margin-bottom: 10px;
    text-align: center;
}

.cases-section .case-item p {
    margin-bottom: 8px;
    font-size: 15px;
}

.cases-section .cases-cta {
    display: block;
    width: fit-content;
    margin: 40px auto 0 auto;
}

/* About Us Section */
.about-us-section .about-us-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: left; /* Or center if preferred */
}

.about-us-section .about-us-content p {
    margin-bottom: 15px;
    line-height: 1.7;
}

/* FAQ Section */
.faq-section .faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-section .faq-item {
    background-color: #FFFFFF;
    margin-bottom: 10px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.faq-section .faq-question {
    width: 100%;
    background-color: transparent;
    border: none;
    padding: 20px;
    text-align: left;
    font-size: 18px;
    font-weight: 500;
    color: #1F2937;
    cursor: pointer;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-section .faq-question::after {
    content: '+'; /* Collapsed state */
    font-size: 24px;
    color: #007BFF;
    transition: transform 0.3s ease;
}

.faq-section .faq-question.active::after {
    content: '−'; /* Expanded state */
    transform: rotate(180deg);
}

.faq-section .faq-answer {
    padding: 0 20px 20px 20px;
    display: none; /* Hidden by default */
    line-height: 1.7;
    color: #495057;
}

.faq-section .faq-answer p {
    margin-bottom: 10px;
}

/* Modal (Quiz & Payment) */
.modal {
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
    display: flex; 
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: #FFFFFF;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 650px; 
    position: relative;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-content h2, .modal-content h3 {
    color: #1F2937;
    text-align: center;
    margin-bottom: 20px;
}

.close-button {
    color: #aaa;
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
}

.close-button:hover,
.close-button:focus {
    color: #1F2937;
}

/* Quiz Form Styles */
#quiz-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #374151;
}

#quiz-form input[type="text"],
#quiz-form select,
#quiz-form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #D1D5DB; /* Light gray border */
    border-radius: 5px;
    font-size: 16px;
    color: #1F2937;
}

#quiz-form input[type="radio"] {
    margin-right: 8px;
}

#quiz-form .quiz-step div + div label { /* Spacing for radio groups */
    margin-top: 8px;
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

/* Payment Step Styles */
.payment-options {
    margin-top: 30px;
    display: flex;
    gap: 20px;
    flex-wrap: wrap; /* For smaller screens */
}

.payment-card, .payment-usdt {
    flex: 1;
    padding: 20px;
    border: 1px solid #E9ECEF;
    border-radius: 8px;
    min-width: 250px; /* Ensure they don't get too squished */
}

.payment-card h4, .payment-usdt h4 {
    margin-bottom: 15px;
    color: #1F2937;
}

/* Footer */
footer {
    background-color: #1F2937; /* Dark footer */
    color: #E9ECEF; /* Light text on dark background */
    padding: 40px 0;
    text-align: center;
}

footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

footer p {
    margin-bottom: 10px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin-top: 10px;
}

.footer-links li {
    display: inline-block;
    margin: 0 10px;
}

.footer-links a {
    color: #E9ECEF;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #007BFF;
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .how-it-works-section .steps-container,
    .benefits-section .benefits-grid,
    .cases-section .cases-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; 
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 70px; /* Adjust based on header height */
        left: 0;
        background-color: #FFFFFF;
        box-shadow: 0 8px 16px rgba(0,0,0,0.1);
        padding-bottom: 10px;
    }

    .nav-links.active {
        display: flex; 
    }

    .nav-links li {
        margin: 15px 0;
        text-align: center;
    }

    .mobile-menu-toggle {
        display: block; 
    }

    .nav-cta {
        display: none; 
    }

    .hero-section h1 {
        font-size: 32px;
    }

    .hero-section .sub-headline {
        font-size: 16px;
    }

    section h2 {
        font-size: 28px;
        margin-bottom: 30px;
    }

    .how-it-works-section .steps-container {
        flex-direction: column;
    }

    .how-it-works-section .step {
        margin-bottom: 20px;
    }

    .payment-options {
        flex-direction: column;
    }
}