:root {
    --primary: #1E3A8A;
    --secondary: #2563EB;
    --accent: #14B8A6;
    --bg-white: #FFFFFF;
    --bg-dark: #0F172A;
    --text-main: #111827;
    --text-muted: #6B7280;
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .logo {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--text-main);
}

a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }

/* Buttons */
.btn-primary, .btn-secondary, .btn-accent {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    border: none;
    font-family: 'Plus Jakarta Sans', sans-serif;
}
.btn-primary {
    background-color: var(--primary);
    color: #fff;
    box-shadow: var(--shadow-soft);
}
.btn-primary:hover {
    background-color: var(--secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--text-muted);
}
.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: #F9FAFB;
}
.btn-accent {
    background-color: var(--accent);
    color: #fff;
}
.btn-accent:hover {
    background-color: #0D9488;
    transform: translateY(-2px);
}

/* Typography Utilities */
.section-title { font-size: 2.5rem; font-weight: 800; margin-bottom: 1rem; }
.section-subtitle { font-size: 1.125rem; color: var(--text-muted); margin-bottom: 3rem; }

/* Navigation */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 20px 0;
    z-index: 1000;
    transition: all 0.3s ease;
    background: transparent;
}
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid #E5E7EB;
    padding: 15px 0;
}
.navbar.scrolled .logo, .navbar.scrolled nav a { color: var(--text-main); }
.nav-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 800; color: #fff; }
.navbar nav a { margin-left: 24px; font-weight: 500; color: #fff; transition: color 0.3s; }
.navbar nav a:hover { color: var(--accent); }
.btn-nav { background: var(--accent); color: #fff !important; padding: 10px 24px; border-radius: 6px; }

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative;
    background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(30, 58, 138, 0.85)), url('../images/hero-bg.png') center/cover no-repeat;
    color: #fff;
    padding-top: 80px;
}
.hero h1 { color: #fff; font-size: 4rem; line-height: 1.2; margin-bottom: 1.5rem; }
.hero p.lead { color: #E2E8F0; font-size: 1.25rem; margin-bottom: 2rem; max-width: 700px; margin-left: auto; margin-right: auto; }
.hero-supporting { font-size: 1rem; color: #94A3B8; margin-top: 20px; font-style: italic; }
.badge { display: inline-block; padding: 6px 16px; background: rgba(20, 184, 166, 0.15); border: 1px solid var(--accent); color: var(--accent); border-radius: 50px; font-weight: 600; font-size: 0.875rem; margin-bottom: 1.5rem; }
.hero-actions { display: flex; gap: 1rem; }

/* Trust Section */
.trust-section { padding: 80px 0; background-color: #F8FAFC; border-bottom: 1px solid #E5E7EB; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.stat-card { background: #fff; padding: 32px 24px; border-radius: 12px; box-shadow: var(--shadow-soft); text-align: center; border: 1px solid #F1F5F9; transition: transform 0.3s; }
.stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--primary); font-family: 'Plus Jakarta Sans', sans-serif; margin-bottom: 8px; }
.stat-label { font-size: 0.875rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* Challenge Section */
.challenge-section { padding: 100px 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.challenge-card { background: #fff; padding: 40px 32px; border-radius: 12px; box-shadow: var(--shadow-soft); text-align: center; border-top: 4px solid var(--secondary); transition: transform 0.3s; }
.challenge-card:hover { transform: translateY(-5px); }
.challenge-card h3 { font-size: 1.25rem; color: var(--primary); }

/* Services Section */
.services-section { padding: 100px 0; background-color: var(--bg-dark); color: #fff; }
.services-section .section-title, .services-section .section-subtitle { color: #fff; }
.services-section .section-subtitle { color: #94A3B8; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; margin-top: 48px; }
.service-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); padding: 40px; border-radius: 12px; transition: all 0.3s; }
.service-card:hover { background: rgba(255,255,255,0.08); border-color: var(--accent); }
.service-card h3 { color: #fff; font-size: 1.5rem; margin-bottom: 1rem; }
.service-card p { color: #CBD5E1; }

/* How It Works */
.how-it-works-section { padding: 100px 0; background-color: #F8FAFC; }
.timeline { display: flex; justify-content: space-between; position: relative; margin-top: 60px; }
.timeline::before { content: ''; position: absolute; top: 24px; left: 0; right: 0; height: 2px; background: #E2E8F0; z-index: 1; }
.timeline-step { position: relative; z-index: 2; text-align: center; flex: 1; padding: 0 15px; }
.step-number { width: 50px; height: 50px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.25rem; margin: 0 auto 16px; border: 4px solid #F8FAFC; }
.timeline-step h3 { font-size: 1.125rem; color: var(--text-main); }

/* Benefits */
.benefits-section { padding: 100px 0; }
.benefits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 48px; }
.benefit-card { padding: 32px; background: #fff; border: 1px solid #E5E7EB; border-radius: 12px; display: flex; align-items: center; gap: 16px; transition: box-shadow 0.3s; }
.benefit-card:hover { box-shadow: var(--shadow-soft); border-color: var(--accent); }
.benefit-icon { color: var(--accent); font-size: 1.5rem; }
.benefit-card h3 { font-size: 1.125rem; margin: 0; }

/* Testimonials */
.testimonials-section { padding: 100px 0; background-color: var(--bg-dark); color: #fff; }
.testimonials-section .section-title { color: #fff; }
.test-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
.test-card { background: rgba(255,255,255,0.05); padding: 40px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.1); }
.stars { color: #FBBF24; margin-bottom: 16px; letter-spacing: 2px; }
.test-card p { font-size: 1.125rem; font-style: italic; color: #E2E8F0; }

/* Pricing */
.pricing-section { padding: 100px 0; background: #F8FAFC; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 48px; }
.pricing-card { background: #fff; border: 1px solid #E5E7EB; border-radius: 16px; padding: 48px 32px; text-align: center; position: relative; transition: transform 0.3s, box-shadow 0.3s; }
.pricing-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.pricing-card.highlight { border: 2px solid var(--primary); box-shadow: var(--shadow-soft); }
.popular-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; padding: 6px 16px; border-radius: 50px; font-weight: 600; font-size: 0.875rem; }
.pricing-card h3 { font-size: 1.5rem; margin-bottom: 16px; }
.pricing-price { font-size: 3rem; font-weight: 800; color: var(--text-main); margin-bottom: 24px; font-family: 'Plus Jakarta Sans', sans-serif; }
.pricing-price span { font-size: 1rem; color: var(--text-muted); font-weight: 500; }
.pricing-desc { color: var(--text-muted); margin-bottom: 32px; }
.pricing-features { list-style: none; text-align: left; margin-bottom: 40px; }
.pricing-features li { padding-left: 28px; position: relative; margin-bottom: 16px; color: var(--text-muted); }
.pricing-features li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: bold; }
.pricing-card .btn-primary { width: 100%; }

/* FAQ */
.faq-section { padding: 100px 0; }
.accordion { max-width: 800px; margin: 48px auto 0; }
.faq-item { border-bottom: 1px solid #E5E7EB; }
.faq-q { padding: 24px 0; font-size: 1.125rem; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; color: var(--text-main); transition: color 0.3s; }
.faq-q:hover { color: var(--primary); }
.faq-a { padding: 0 0 24px; color: var(--text-muted); display: none; }
.faq-item.active .faq-a { display: block; }

/* Contact / Final CTA */
.contact-section { padding: 100px 0; background-color: var(--bg-dark); color: #fff; }
.contact-section .section-title { color: #fff; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.contact-info p { margin-bottom: 16px; font-size: 1.125rem; color: #E2E8F0; }
.contact-form { background: #fff; padding: 40px; border-radius: 12px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; color: var(--text-main); font-weight: 500; font-size: 0.875rem; }
.form-group input, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid #D1D5DB; border-radius: 6px; font-family: 'Inter', sans-serif; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
.contact-form .btn-primary { width: 100%; }

/* Footer */
.footer { padding: 48px 0; background: #020617; color: #94A3B8; border-top: 1px solid rgba(255,255,255,0.1); }
.footer-content { display: flex; justify-content: space-between; align-items: center; }
.footer .logo { color: #fff; margin-bottom: 8px; display: block; }
.footer-links { text-align: right; }
.footer-links p { margin-bottom: 4px; }

/* Animations */
.fade-in-up { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-up.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 992px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .grid-3, .benefits-grid, .pricing-grid { grid-template-columns: 1fr; }
    .timeline { flex-direction: column; gap: 32px; }
    .timeline::before { left: 25px; top: 0; bottom: 0; height: auto; width: 2px; }
    .timeline-step { display: flex; align-items: center; gap: 24px; text-align: left; }
    .step-number { margin: 0; flex-shrink: 0; }
    .contact-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 3rem; }
}
@media (max-width: 768px) {
    .nav-content { flex-direction: column; gap: 16px; }
    .navbar nav a { margin: 0 12px; }
    .hero-actions { flex-direction: column; }
    .footer-content { flex-direction: column; text-align: center; gap: 32px; }
    .footer-links { text-align: center; }
}