:root {
    --primary-color: #00ddeb; /* Cyan blue */
    --secondary-color: #4682b4; /* Hover state */
    --background-light: #f9f9f9; /* Main background */
    --background-medium: #d3d3d3; /* Fallbacks */
    --background-dark: #1a1a1a; /* Dark sections */
    --background-form: #f0f0f0; /* Cards/sections */
    --text-dark: #333333;
    --text-medium: #666666;
    --text-light: #ffffff;
    --red: #ff6f61; /* Icons/accents */
    --black: #000000; /* Button color */
}

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

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(10px, 3vw, 20px);
}

/* Buttons */
.secure-payment .secure-btn,
.faq-section .secure-btn {
    padding: clamp(8px, 2vw, 12px) clamp(16px, 3vw, 24px);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: clamp(14px, 2.5vw, 16px);
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    max-width: 200px;
    display: inline-block;
    text-align: center;
}

.secure-payment .secure-btn-primary,
.faq-section .secure-btn-primary {
    background-color: var(--black);
    color: var(--text-light);
    border: none;
}

.secure-payment .secure-btn-primary:hover,
.faq-section .secure-btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(70, 130, 180, 0.3);
}

/* Secure Payment Section */
.secure-payment {
    position: relative;
    padding: clamp(60px, 8vw, 80px) clamp(10px, 3vw, 20px);
    background-color: var(--background-light);
    background-image: linear-gradient(135deg, rgba(0, 221, 235, 0.1) 0%, var(--background-light) 100%);
}

.section-icon {
    font-size: clamp(40px, 5vw, 48px);
    color: var(--red);
    text-align: center;
    margin-bottom: 20px;
}

.section-heading {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: clamp(20px, 4vw, 40px);
}

.payment-content {
    display: flex;
    gap: clamp(20px, 4vw, 30px);
    flex-wrap: wrap;
    align-items: stretch;
}

.payment-card, .payment-details {
    flex: 1;
    background-color: var(--background-form);
    padding: clamp(20px, 4vw, 30px);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-width: 280px;
}

.payment-card:hover, .payment-details:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.payment-icon {
    font-size: clamp(32px, 4vw, 40px);
    color: var(--red);
    margin-bottom: 15px;
    display: block;
}

.payment-card h3, .payment-details h3 {
    font-size: clamp(20px, 3vw, 24px);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.payment-card p, .payment-details p {
    font-size: clamp(16px, 2.5vw, 18px);
    color: var(--text-medium);
    margin-bottom: 20px;
}

.payment-methods, .payment-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.payment-methods li, .payment-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: clamp(14px, 2.5vw, 16px);
    color: var(--text-medium);
    margin-bottom: 15px;
}

.payment-methods li i, .payment-features li i {
    font-size: clamp(20px, 3vw, 24px);
}

/* FAQ Section */
.faq-section {
    padding: clamp(60px, 8vw, 80px) clamp(10px, 3vw, 20px);
    background-color: var(--background-form);
}

.faq-content {
    display: flex;
    flex-direction: column;
    gap: clamp(15px, 3vw, 20px);
}

.faq-item {
    background-color: var(--background-light);
    padding: clamp(15px, 3vw, 20px);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.faq-question {
    font-size: clamp(18px, 3vw, 20px);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question .float-end {
    font-size: clamp(16px, 2.5vw, 18px);
    transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"] .float-end {
    transform: rotate(180deg);
}

.faq-item .collapse {
    transition: height 0.3s ease;
}

.faq-item .collapse.show p {
    font-size: clamp(14px, 2.5vw, 16px);
    color: var(--text-medium);
    padding: 10px 0;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .payment-content {
        flex-direction: column;
    }

    .payment-card, .payment-details {
        margin-bottom: 20px;
    }

    .secure-payment, .faq-section {
        padding: clamp(40px, 6vw, 60px) clamp(10px, 2vw, 15px);
    }

    .section-heading {
        font-size: clamp(24px, 3.5vw, 28px);
    }

    .payment-card h3, .payment-details h3 {
        font-size: clamp(18px, 3vw, 20px);
    }

    .payment-card p, .payment-details p {
        font-size: clamp(14px, 2.5vw, 16px);
    }

    .payment-methods li, .payment-features li {
        font-size: clamp(13px, 2vw, 14px);
    }

    .faq-question {
        font-size: clamp(16px, 2.5vw, 18px);
    }

    .faq-item .collapse.show p {
        font-size: clamp(13px, 2vw, 14px);
    }

    .secure-payment .secure-btn,
    .faq-section .secure-btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 10px;
    }

    .section-icon {
        font-size: clamp(32px, 4vw, 40px);
    }

    .section-heading {
        font-size: clamp(20px, 3vw, 24px);
    }

    .payment-card h3, .payment-details h3 {
        font-size: clamp(16px, 2.5vw, 18px);
    }

    .payment-icon {
        font-size: clamp(28px, 3.5vw, 32px);
    }
}