/* --- Base Styles & Variables --- */
:root {
    --primary-color: #6a11cb; /* Deep purple */
    --secondary-color: #2575fc; /* Bright blue */
    --accent-color: #00ff9d; /* Mint green accent */
    --text-color: #333;
    --light-text-color: #f8f9fa;
    --bg-color: #ffffff;
    --light-gray-bg: #f8f9fa;
    --border-color: #dee2e6;
    --heading-font: 'Inter', sans-serif;
    --body-font: 'Inter', sans-serif;
    --container-width: 1140px;
    --border-radius: 8px;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.75rem;
    color: #2d3748; /* Darker heading color */
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; margin-bottom: 1.5rem; text-align: center;}
h3 { font-size: 1.5rem; }
p { margin-bottom: 1rem; color: #4a5568; } /* Slightly lighter paragraph */
a { color: var(--primary-color); text-decoration: none; }
a:hover { color: var(--secondary-color); }
ul { list-style: none; }

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 15px;
}

section {
    padding: 80px 0;
}

.cta-button {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.primary-cta, .hero-cta, .nav-cta {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text-color);
    box-shadow: 0 4px 10px rgba(106, 17, 203, 0.3);
}
.primary-cta:hover, .hero-cta:hover, .nav-cta:hover {
    background: linear-gradient(45deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(37, 117, 252, 0.4);
    color: var(--light-text-color);
}

.secondary-cta {
    background-color: var(--bg-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}
.secondary-cta:hover {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    transform: translateY(-2px);
}

/* --- Header --- */
.main-header {
    background-color: var(--bg-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}
.logo:hover { color: var(--secondary-color); }

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s ease;
}

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

/* --- Hero Section --- */
.hero {
    background: linear-gradient(rgba(248, 249, 250, 0.8), rgba(248, 249, 250, 0.8)), url('https://via.placeholder.com/1920x800/E0E7FF/888?text=Abstract+Background') center center/cover no-repeat; /* Placeholder background */
    padding: 100px 0;
    text-align: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.hero-text {
    max-width: 800px;
}

.hero h1 {
     background: -webkit-linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.hero .subtitle {
    font-size: 1.2rem;
    color: #4a5568;
    margin-bottom: 2rem;
    max-width: 700px; /* Limit subtitle width */
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    font-size: 1.1rem;
    padding: 15px 35px;
}
.hero-cta i { margin-left: 8px; }

.trial-info {
    font-size: 0.9rem;
    color: #6c757d;
    margin-top: 10px;
}

/* Hero Visual - Before/After */
.hero-visual {
    width: 100%;
    max-width: 750px;
    margin-top: 20px;
}
.before-after {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-color);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: left;
    gap: 20px; /* Added gap */
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}
.before, .after {
    flex-basis: calc(50% - 30px); /* Adjust basis for gap */
    min-width: 250px; /* Prevent excessive squishing */
}
.before h4, .after h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.before p, .after p {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 0;
    line-height: 1.5;
}
.after p strong { color: var(--text-color); }
.arrow {
    color: var(--secondary-color);
    flex-shrink: 0; /* Prevent arrow from shrinking */
}
/* Hero Visual - Image (Alternative) */
.hero-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* --- How It Works Section --- */
.how-it-works {
    background-color: var(--light-gray-bg);
}
.steps {
    display: flex;
    justify-content: space-around;
    gap: 30px;
    text-align: center;
    margin-top: 40px;
}
.step {
    flex: 1;
    padding: 20px;
}
.step-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    display: inline-block;
    background: linear-gradient(45deg, rgba(106, 17, 203, 0.1), rgba(37, 117, 252, 0.1));
    width: 80px;
    height: 80px;
    line-height: 80px; /* Vertically center icon */
    border-radius: 50%;
}
.step h3 {
    margin-bottom: 10px;
}

/* --- Features Section --- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.feature-item {
    background-color: var(--bg-color);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}
.feature-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}
.feature-item h3 {
    margin-bottom: 10px;
}

/* --- Testimonials Section --- */
.testimonials {
    background-color: var(--light-gray-bg);
}
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.testimonial-card {
    background-color: var(--bg-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.testimonial-card img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-bottom: 20px;
    object-fit: cover;
}
.testimonial-card blockquote {
    font-style: italic;
    color: #555;
    margin-bottom: 15px;
    position: relative;
    padding: 0 15px;
}
.testimonial-card blockquote::before {
    content: '"';
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    left: -5px;
    top: -10px;
}
.testimonial-card cite {
    font-weight: 600;
    color: var(--text-color);
}

/* --- Pricing Section --- */
.pricing {
     background: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), url('https://via.placeholder.com/1920x600/F0F4FF/AAA?text=Subtle+Pattern') center center/cover repeat;
}
.pricing-subtitle {
    text-align: center;
    margin-bottom: 40px;
    color: #6c757d;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    align-items: stretch; /* Make tiers equal height */
}
.pricing-tier {
    background-color: var(--bg-color);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    flex-direction: column;
    position: relative; /* For badge */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.pricing-tier:hover {
     transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}
.pricing-tier.popular {
    border: 2px solid var(--primary-color);
    transform: scale(1.05); /* Slightly larger */
    box-shadow: 0 10px 30px rgba(106, 17, 203, 0.2);
}
.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-tier h3 {
    margin-bottom: 10px;
}
.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}
.price span { display: inline-block; }
.price + .tier-description { /* Style description below price */
    color: #6c757d;
    font-size: 0.95rem;
    margin-bottom: 25px;
    min-height: 40px; /* Ensure space even if short */
}
.pricing-tier ul {
    text-align: left;
    margin: 25px 0;
    flex-grow: 1; /* Pushes button to bottom */
}
.pricing-tier li {
    margin-bottom: 12px;
    color: #4a5568;
}
.pricing-tier li i {
    color: var(--accent-color); /* Use accent for checkmark */
    margin-right: 10px;
    width: 18px; /* Align icons */
    text-align: center;
}
.pricing-tier li i.fa-times {
    color: #e57373; /* Reddish for 'x' */
}
.pricing-tier .cta-button {
    margin-top: auto; /* Pushes button to the bottom */
    width: 100%;
}
.annual-discount {
    text-align: center;
    margin-top: 30px;
    font-weight: 600;
    color: var(--primary-color);
}

/* --- Final CTA Section --- */
.final-cta {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text-color);
    text-align: center;
}
.final-cta h2 {
    color: var(--light-text-color);
    margin-bottom: 1rem;
}
.final-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.final-cta .cta-button {
    background: var(--bg-color);
    color: var(--primary-color);
    font-size: 1.1rem;
    padding: 15px 35px;
}
.final-cta .cta-button:hover {
    background: var(--light-gray-bg);
    color: var(--secondary-color);
    transform: translateY(-2px);
}
.final-cta .trial-info {
    color: rgba(255, 255, 255, 0.8);
}


/* --- Footer --- */
.main-footer {
    background-color: #2d3748; /* Dark footer */
    color: var(--light-text-color);
    padding: 40px 0;
    font-size: 0.9rem;
}
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* Wrap on smaller screens */
    gap: 20px;
}
.footer-left .logo {
    color: var(--light-text-color);
    display: block;
    margin-bottom: 10px;
}
.footer-left p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0;
}
.footer-links {
    display: flex;
    gap: 20px;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.8);
}
.footer-links a:hover {
    color: var(--accent-color);
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
    .container { max-width: 960px; }
    h1 { font-size: 2.4rem; }
    h2 { font-size: 2rem; }
    .feature-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
    .pricing-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
    .pricing-tier.popular { transform: scale(1.03); } /* Less pronounced scale */
}

@media (max-width: 768px) {
    .container { max-width: 720px; }
    h1 { font-size: 2rem; }
    .hero { padding: 80px 0; }
    section { padding: 60px 0; }

    .nav-bar { flex-direction: column; gap: 15px; }
    .nav-links { /* Basic mobile handling - consider a toggle menu for more links */
        justify-content: center;
        flex-wrap: wrap;
    }
    .nav-cta { margin-top: 10px; }

    .hero-content { flex-direction: column; }
    .hero-visual { margin-top: 30px; }
    .before-after { flex-direction: column; } /* Stack before/after */
    .before, .after { flex-basis: auto; width: 100%; }
    .arrow { transform: rotate(90deg); margin: 15px 0; }

    .steps { flex-direction: column; gap: 40px; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
     .pricing-tier.popular { transform: scale(1); } /* No scale on mobile */
    .footer-content { flex-direction: column; text-align: center; }
    .footer-right { margin-top: 15px; }
}

@media (max-width: 576px) {
    .container { max-width: 100%; padding: 0 20px; }
    h1 { font-size: 1.8rem; }
    .hero .subtitle { font-size: 1rem; }
    .cta-button { padding: 10px 20px; font-size: 0.95rem; }
    .hero-cta { padding: 12px 25px; }
    .feature-grid { grid-template-columns: 1fr; }
}