/* Basic Reset & Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #007bff; /* A nice blue for primary actions */
    --secondary-color: #6c757d; /* For secondary buttons/text */
    --light-grey: #f8f9fa; /* Background for alternating sections */
    --dark-grey: #343a40; /* Darker text/footer background */
    --text-color: #495057; /* General text color */
    --heading-color: #212529; /* Heading text color */
    --white: #ffffff;
    --border-color: #dee2e6;
    --box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.05);

    --font-poppins: 'Poppins', sans-serif;
    --font-open-sans: 'Open Sans', sans-serif;
}

html {
    scroll-behavior: smooth;
}

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

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

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

a:hover {
    color: #0056b3; /* Darker shade of primary color */
}

ul {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-poppins);
    color: var(--heading-color);
    margin-bottom: 1rem;
}

h1 { font-size: 2.8rem; line-height: 1.2; }
h2 { font-size: 2.2rem; margin-bottom: 1.5rem; text-align: center; }
h3 { font-size: 1.8rem; margin-bottom: 1rem; }
p { margin-bottom: 1rem; }

.section-padding {
    padding: 80px 0;
}

.bg-light-grey {
    background-color: var(--light-grey);
}

.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-align: center;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: #5a6268;
    transform: translateY(-2px);
}

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

.section-description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem auto;
    font-size: 1.1rem;
    color: var(--secondary-color);
}

/* Header */
.main-header {
    background-color: var(--white);
    padding: 20px 0;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo a {
    font-family: var(--font-poppins);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--heading-color);
}

.main-nav .nav-links {
    display: flex;
    gap: 30px;
}

.main-nav .nav-links li a {
    color: var(--heading-color);
    font-weight: 600;
    font-size: 1.05rem;
    transition: color 0.3s ease;
}

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

.nav-contact a {
    background-color: var(--primary-color);
    color: var(--white) !important; /* Override default link color */
    padding: 8px 18px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.nav-contact a:hover {
    background-color: #0056b3;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background-color: var(--heading-color);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('https://images.unsplash.com/photo-1517486803738-f91605f63d91?q=80&w=2070&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D') no-repeat center center/cover;
    color: var(--white);
    text-align: center;
    padding: 150px 20px;
}

.hero-section h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--white);
    font-weight: 700;
}

.hero-section p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px auto;
}

/* About Section */
.about-section h2 {
    text-align: center;
}

/* Features, Benefits, Industries, Why Choose Us Grids */
.feature-grid, .benefits-grid, .industry-grid, .why-choose-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 2rem;
}

.feature-item, .benefit-item, .industry-item, .why-choose-us-item {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover, .benefit-item:hover, .industry-item:hover, .why-choose-us-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.1);
}

.feature-icon, .benefit-icon, .industry-icon, .choose-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.benefit-item p, .industry-item p {
    font-size: 1.1rem;
    margin-bottom: 0;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 3rem;
}

.pricing-plan {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.pricing-plan:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

.pricing-plan h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.pricing-plan .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 5px;
}

.pricing-plan .price span {
    font-size: 3.5rem; /* Larger for the actual price */
    color: var(--primary-color);
}

.pricing-plan .price-international {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.pricing-plan ul {
    margin-bottom: 30px;
}

.pricing-plan ul li {
    font-size: 1.05rem;
    padding: 8px 0;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pricing-plan ul li i {
    color: #28a745; /* Green checkmark */
    margin-right: 10px;
}

.pricing-plan .btn {
    margin-top: 20px;
}

.featured-plan {
    border: 2px solid var(--primary-color);
    transform: scale(1.03); /* Make featured plan slightly larger */
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.1);
}

.featured-plan .btn-primary {
    background-color: var(--primary-color);
}

/* Testimonials Section */
.testimonial-carousel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 3rem;
    /* You might use a JS library for a real carousel (e.g., Swiper.js, Slick Carousel) */
    /* For simplicity, this is a responsive grid layout that mimics a carousel feel with overflow */
}

.testimonial-item {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    text-align: center;
    border: 1px solid var(--border-color);
}

.testimonial-item .stars {
    color: gold;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.testimonial-item p {
    font-style: italic;
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.testimonial-item .customer-info {
    font-weight: 600;
    color: var(--heading-color);
    font-size: 1rem;
    margin-bottom: 0;
}

/* CTA Section */
.cta-section {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 80px 20px;
}

.cta-section h2 {
    color: var(--white);
    font-size: 2.5rem;
}

.cta-section p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px auto;
}

.cta-section .btn {
    background-color: var(--white);
    color: var(--primary-color);
    font-weight: 700;
}

.cta-section .btn:hover {
    background-color: var(--light-grey);
    color: var(--primary-color);
}

/* FAQ Section */
.faq-accordion {
    max-width: 800px;
    margin: 3rem auto 0 auto;
}

.faq-item {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.faq-question {
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    background-color: var(--white);
    color: var(--heading-color);
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: #f1f1f1;
}

.faq-question .fas {
    transition: transform 0.3s ease;
}

.faq-question.active .fas {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.faq-answer p {
    padding-bottom: 20px; /* Add padding to the paragraph inside */
    margin-bottom: 0; /* Remove default paragraph margin-bottom */
}

/* Footer */
.main-footer {
    background-color: var(--dark-grey);
    color: var(--white);
    padding-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-column h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.4rem;
}

.footer-column p, .footer-column li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.footer-column p i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
}

.social-icons a:hover {
    background-color: var(--primary-color);
}

.footer-bottom {
    background-color: #212529; /* Slightly darker footer bottom */
    padding: 20px 0;
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 992px) {
    .main-nav .nav-links {
        gap: 20px;
    }

    .hero-section h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .main-nav .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: var(--white);
        position: absolute;
        top: 80px; /* Adjust based on header height */
        left: 0;
        padding: 20px 0;
        box-shadow: var(--box-shadow);
    }

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

    .main-nav .nav-links li {
        text-align: center;
        margin: 10px 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-section {
        padding: 100px 20px;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

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

    .pricing-grid, .feature-grid, .benefits-grid, .industry-grid, .why-choose-us-grid, .testimonial-carousel {
        grid-template-columns: 1fr; /* Stack columns on smaller screens */
    }

    .pricing-plan, .feature-item, .benefit-item, .industry-item, .why-choose-us-item, .testimonial-item {
        margin: 0 auto;
        max-width: 400px; /* Constrain width for better readability */
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-column {
        align-items: center;
    }
    .footer-column .social-icons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-section h1 {
        font-size: 2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .pricing-plan .price {
        font-size: 2rem;
    }

    .pricing-plan .price span {
        font-size: 3rem;
    }

    h2 {
        font-size: 1.5rem;
    }
}