/* ============================= */
/* CSS VARIABLES - EASY CUSTOMIZATION */
/* ============================= */
:root {
    /* Brand Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --accent: #f59e0b;
    
    /* Neutral Colors */
    --bg-body: #f8fafc;
    --bg-white: #ffffff;
    --bg-light: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 80px 20px;
    --section-padding-sm: 60px 20px;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --heading-size: 2.5rem;
    --heading-size-lg: 3rem;
    --heading-size-sm: 2rem;
    --text-size: 1rem;
    --text-size-lg: 1.125rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: 0.3s ease;
}

/* ============================= */
/* BASE STYLES */
/* ============================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

ul {
    list-style: none;
}

/* ============================= */
/* CONTAINER */
/* ============================= */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================= */
/* ANNOUNCEMENT BAR */
/* ============================= */
.announcement-bar {
    background: var(--primary);
    color: white;
    text-align: center;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.announcement-bar p {
    margin: 0;
}

/* ============================= */
/* HEADER / NAV */
/* ============================= */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

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

.nav-menu {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
}

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

/* ============================= */
/* BUTTONS */
/* ============================= */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-full-width {
    width: 100%;
}

/* ============================= */
/* HERO SECTION */
/* ============================= */
.hero {
    background: var(--bg-white);
    padding: var(--section-padding);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: var(--heading-size-lg);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--text-size-lg);
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image-placeholder {
    width: 100%;
    height: 400px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    border: 2px dashed var(--border);
}

/* ============================= */
/* DEMO NOTICE */
/* ============================= */
.demo-notice {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px 20px;
    margin: 40px auto;
    max-width: var(--container-max-width);
}

.demo-notice-content {
    text-align: center;
}

.demo-notice h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.demo-notice p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================= */
/* ADD-ON PACK PREVIEW BADGE */
/* ============================= */
.addon-preview-badge {
    padding: 24px 0;
}

.addon-preview-badge .container {
    display: flex;
    justify-content: center;
}

.badge-text {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

/* ============================= */
/* SECTION HEADERS */
/* ============================= */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: var(--heading-size);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: var(--text-size-lg);
    color: var(--text-secondary);
}

/* ============================= */
/* FEATURES / BENEFITS SECTION */
/* ============================= */
.features {
    background: var(--bg-body);
    padding: var(--section-padding);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================= */
/* SOCIAL PROOF SECTION */
/* ============================= */
.social-proof {
    background: var(--bg-white);
    padding: var(--section-padding);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.testimonial-card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: var(--radius-md);
}

.testimonial-text {
    font-size: var(--text-size-lg);
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.6;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
}

.author-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ============================= */
/* ABOUT / WHY SECTION */
/* ============================= */
.about {
    background: var(--bg-body);
    padding: var(--section-padding);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: var(--heading-size);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.about-intro {
    font-size: var(--text-size-lg);
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.about-points {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.about-point {
    display: flex;
    align-items: center;
    gap: 12px;
}

.point-icon {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.2rem;
}

.about-point p {
    color: var(--text-primary);
    margin: 0;
}

.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image-placeholder {
    width: 100%;
    height: 400px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    border: 2px dashed var(--border);
}

/* ============================= */
/* OFFER / SERVICE SECTION */
/* ============================= */
.offer {
    background: var(--bg-white);
    padding: var(--section-padding);
}

.offer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.offer-text h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.offer-description {
    font-size: var(--text-size-lg);
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.offer-features {
    margin-bottom: 32px;
}

.offer-features li {
    padding: 12px 0;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
}

.offer-features li:last-child {
    border-bottom: none;
}

.offer-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.offer-image-placeholder {
    width: 100%;
    height: 400px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    border: 2px dashed var(--border);
}

/* ============================= */
/* FAQ SECTION */
/* ============================= */
.faq {
    background: var(--bg-body);
    padding: var(--section-padding);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    padding: 24px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.faq-answer {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ============================= */
/* FINAL CTA + CONTACT SECTION */
/* ============================= */
.final-cta {
    background: var(--primary);
    color: white;
    padding: var(--section-padding);
    text-align: center;
}

.cta-content h2 {
    font-size: var(--heading-size);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: var(--text-size-lg);
    margin-bottom: 32px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

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

.cta-buttons .btn-primary:hover {
    background: var(--bg-light);
}

.cta-buttons .btn-secondary {
    background: transparent;
    border-color: white;
    color: white;
}

.cta-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.contact-info {
    font-size: 0.95rem;
    opacity: 0.9;
}

.contact-info a {
    color: white;
    text-decoration: underline;
}

/* ============================= */
/* FOOTER */
/* ============================= */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--section-padding-sm);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-link-group h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-link-group ul li {
    margin-bottom: 12px;
}

.footer-link-group a {
    color: var(--text-muted);
}

.footer-link-group a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================= */
/* MOBILE RESPONSIVE */
/* ============================= */
@media (max-width: 768px) {
    :root {
        --heading-size-lg: 2.25rem;
        --heading-size: 1.75rem;
        --section-padding: 60px 20px;
    }

    .header {
        position: static;
    }

    .nav-logo {
        margin-bottom: 8px;
    }

    .nav-container {
        flex-direction: column;
        gap: 16px;
    }

    .nav-menu {
        flex-direction: column;
        gap: 16px;
    }

    .nav-menu a,
    .nav-menu a:visited,
    .nav-menu a:hover,
    .nav-menu a:focus,
    .nav-menu a:active {
        color: var(--text-secondary);
        background: transparent;
        outline: none;
        -webkit-tap-highlight-color: transparent;
    }
    
    .hero-content,
    .about-content,
    .offer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-visual,
    .about-visual {
        order: -1;
    }
    
    .hero-image-placeholder,
    .about-image-placeholder,
    .offer-image-placeholder {
        height: 300px;
    }
    
    .hero-ctas,
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-full-width {
        width: auto;
    }
    
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}