/* AGIENTEK Landing Page Styles */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-primary: #0c1222;
    --color-primary-light: #1a2744;
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-success: #059669;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-text-light: #94a3b8;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --space-xs: 0.25rem; --space-sm: 0.5rem; --space-md: 1rem; --space-lg: 1.5rem;
    --space-xl: 2rem; --space-2xl: 3rem; --space-3xl: 4rem; --space-4xl: 6rem;
    --radius-sm: 6px; --radius-md: 8px; --radius-lg: 12px; --radius-xl: 16px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
    --transition-fast: 150ms ease; --transition-base: 200ms ease; --transition-slow: 300ms ease;
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.6; color: var(--color-text); background: var(--color-bg); }
img { max-width: 100%; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent-hover); }

/* Layout */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--space-xl); }
.section { padding: var(--space-4xl) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-title { font-size: 2rem; font-weight: 700; color: var(--color-primary); text-align: center; margin-bottom: var(--space-sm); letter-spacing: -0.02em; }
.section-subtitle { font-size: 1.125rem; color: var(--color-text-muted); text-align: center; max-width: 640px; margin: 0 auto var(--space-3xl); }

/* Navigation */
.navbar { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--color-border); padding: var(--space-md) 0; }
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-size: 1.25rem; font-weight: 800; color: var(--color-primary); letter-spacing: -0.03em; text-decoration: none; }
.nav-logo span { color: var(--color-accent); }
.nav-links { display: flex; align-items: center; gap: var(--space-lg); list-style: none; }
.nav-links a { font-size: 0.9375rem; font-weight: 500; color: var(--color-text-muted); transition: color var(--transition-fast); }
.nav-links a:hover { color: var(--color-primary); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-sm); font-family: var(--font-sans); font-size: 0.9375rem; font-weight: 600; padding: 0.75rem 1.5rem; border-radius: var(--radius-md); border: none; cursor: pointer; transition: all var(--transition-base); text-decoration: none; white-space: nowrap; }
.btn-primary { background: var(--color-accent); color: #fff; box-shadow: 0 1px 2px rgba(37,99,235,0.3); }
.btn-primary:hover { background: var(--color-accent-hover); color: #fff; box-shadow: 0 4px 12px rgba(37,99,235,0.3); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--color-text); border: 1.5px solid var(--color-border); }
.btn-secondary:hover { border-color: var(--color-text-muted); color: var(--color-primary); background: var(--color-bg-alt); }
.btn-lg { font-size: 1.0625rem; padding: 0.875rem 2rem; }
.secondary-cta { font-size: 0.9375rem; font-weight: 500; color: var(--color-text-muted); }
.secondary-cta:hover { color: var(--color-primary); }
.cta-group { display: flex; align-items: center; gap: var(--space-lg); flex-wrap: wrap; }

/* Social Proof Bar */
.social-proof-bar { background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border-light); padding: var(--space-lg) 0; }
.social-proof-bar .container { display: flex; align-items: center; justify-content: center; gap: var(--space-2xl); }
.proof-stat { display: flex; flex-direction: column; align-items: center; gap: var(--space-xs); }
.proof-stat .number { font-size: 1.5rem; font-weight: 800; color: var(--color-primary); letter-spacing: -0.02em; }
.proof-stat .label { font-size: 0.8125rem; font-weight: 500; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.proof-divider { width: 1px; height: 32px; background: var(--color-border); }

/* Hero */
.hero { padding: var(--space-4xl) 0; text-align: center; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; color: var(--color-primary); line-height: 1.15; letter-spacing: -0.03em; margin-bottom: var(--space-lg); max-width: 800px; margin-left: auto; margin-right: auto; }
.hero .subheadline { font-size: 1.25rem; color: var(--color-text-muted); max-width: 640px; margin: 0 auto var(--space-lg); line-height: 1.5; }
.hero .body { font-size: 1.0625rem; color: var(--color-text-muted); max-width: 600px; margin: 0 auto var(--space-2xl); line-height: 1.7; }

/* Testimonials */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.testimonial-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-xl); transition: box-shadow var(--transition-base), transform var(--transition-base); }
.testimonial-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.testimonial-result { font-size: 0.875rem; font-weight: 600; color: var(--color-success); margin-bottom: var(--space-md); text-transform: uppercase; letter-spacing: 0.02em; }
.testimonial-quote { font-size: 0.9375rem; color: var(--color-text); line-height: 1.65; margin-bottom: var(--space-md); font-style: italic; }
.testimonial-author { font-size: 0.8125rem; font-weight: 600; color: var(--color-text-muted); }

/* Problem */
.problem-section { padding: var(--space-4xl) 0; text-align: center; background: var(--color-bg); }
.problem-section h2 { font-size: 1.75rem; font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-lg); letter-spacing: -0.02em; }
.problem-section p { font-size: 1.0625rem; color: var(--color-text-muted); max-width: 700px; margin: 0 auto; line-height: 1.7; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
.feature-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-xl); transition: box-shadow var(--transition-base), transform var(--transition-base); }
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.feature-icon { font-size: 1.75rem; margin-bottom: var(--space-md); line-height: 1; }
.feature-card h3 { font-size: 1.0625rem; font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-sm); }
.feature-card p { font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.6; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2xl); max-width: 960px; margin: 0 auto; }
.step { text-align: center; }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 50%; background: var(--color-accent); color: #fff; font-size: 1.25rem; font-weight: 700; margin-bottom: var(--space-lg); }
.step h3 { font-size: 1.125rem; font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-sm); }
.step p { font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.6; max-width: 280px; margin: 0 auto; }

/* CTA Banner */
.cta-banner { background: var(--color-primary); padding: var(--space-3xl) 0; text-align: center; }
.cta-banner h2 { font-size: 1.75rem; font-weight: 700; color: #fff; margin-bottom: var(--space-sm); }
.cta-banner p { font-size: 1.0625rem; color: var(--color-text-light); margin-bottom: var(--space-xl); }
.cta-banner .btn-primary { background: #fff; color: var(--color-primary); }
.cta-banner .btn-primary:hover { background: var(--color-bg-alt); transform: translateY(-1px); }

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); align-items: start; }
.pricing-card { background: var(--color-bg); border: 1.5px solid var(--color-border); border-radius: var(--radius-xl); padding: var(--space-2xl); position: relative; transition: box-shadow var(--transition-base), transform var(--transition-base); }
.pricing-card:hover { box-shadow: var(--shadow-lg); }
.pricing-card.popular { border-color: var(--color-accent); box-shadow: var(--shadow-lg), 0 0 0 1px var(--color-accent); transform: scale(1.03); }
.pricing-card.popular:hover { box-shadow: var(--shadow-xl), 0 0 0 1px var(--color-accent); transform: scale(1.04); }
.popular-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--color-accent); color: #fff; font-size: 0.75rem; font-weight: 700; padding: 0.25rem 1rem; border-radius: 100px; text-transform: uppercase; letter-spacing: 0.05em; white-space: nowrap; }
.pricing-tier { font-size: 1.125rem; font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-sm); }
.pricing-price { font-size: 2.5rem; font-weight: 800; color: var(--color-primary); letter-spacing: -0.03em; margin-bottom: var(--space-sm); }
.pricing-price span { font-size: 0.9375rem; font-weight: 500; color: var(--color-text-muted); }
.pricing-desc { font-size: 0.9375rem; color: var(--color-text-muted); margin-bottom: var(--space-xl); line-height: 1.5; }
.pricing-features { list-style: none; margin-bottom: var(--space-xl); }
.pricing-features li { font-size: 0.9375rem; color: var(--color-text); padding: var(--space-sm) 0; border-bottom: 1px solid var(--color-border-light); display: flex; align-items: flex-start; gap: var(--space-sm); }
.pricing-features li::before { content: "\2713"; color: var(--color-success); font-weight: 700; flex-shrink: 0; }
.pricing-card .btn { width: 100%; }

/* FAQ */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: var(--space-lg) 0; background: none; border: none; cursor: pointer; font-family: var(--font-sans); font-size: 1rem; font-weight: 600; color: var(--color-primary); text-align: left; transition: color var(--transition-fast); }
.faq-question:hover { color: var(--color-accent); }
.faq-question::after { content: "+"; font-size: 1.25rem; font-weight: 400; color: var(--color-text-muted); flex-shrink: 0; margin-left: var(--space-md); }
.faq-item.open .faq-question::after { content: "\2212"; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition-slow), padding var(--transition-slow); font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.65; }
.faq-item.open .faq-answer { max-height: 300px; padding-bottom: var(--space-lg); }

/* Final CTA */
.final-cta { background: var(--color-bg-alt); padding: var(--space-4xl) 0; text-align: center; }
.final-cta h2 { font-size: 2rem; font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-sm); letter-spacing: -0.02em; }
.final-cta p { font-size: 1.0625rem; color: var(--color-text-muted); margin-bottom: var(--space-xl); }
.trust-line { font-size: 0.8125rem; color: var(--color-text-light); margin-top: var(--space-md); }

/* Footer */
.footer { background: var(--color-primary); color: var(--color-text-light); padding: var(--space-3xl) 0 var(--space-xl); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
.footer-brand .nav-logo { color: #fff; font-size: 1.25rem; display: inline-block; margin-bottom: var(--space-md); }
.footer-brand .tagline { font-size: 0.875rem; color: var(--color-text-light); line-height: 1.6; max-width: 280px; }
.footer-col h4 { font-size: 0.8125rem; font-weight: 700; color: #fff; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--space-lg); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: var(--space-sm); }
.footer-col a { font-size: 0.875rem; color: var(--color-text-light); transition: color var(--transition-fast); }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: var(--space-xl); display: flex; justify-content: space-between; align-items: center; }
.footer-bottom p { font-size: 0.8125rem; color: var(--color-text-light); }

/* Responsive */
@media (max-width: 1024px) {
    .features-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-card.popular { transform: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
}
@media (max-width: 768px) {
    .container { padding: 0 var(--space-lg); }
    .section { padding: var(--space-3xl) 0; }
    .nav-links { display: none; }
    .hero { padding: var(--space-3xl) 0; }
    .hero h1 { font-size: 1.75rem; }
    .cta-group { flex-direction: column; align-items: stretch; }
    .cta-group .btn { text-align: center; }
    .social-proof-bar .container { flex-wrap: wrap; gap: var(--space-lg); }
    .proof-divider { display: none; }
    .testimonials-grid, .features-grid, .steps, .pricing-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 1.5rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }
}
@media (max-width: 480px) {
    .pricing-price { font-size: 2rem; }
    .proof-stat .number { font-size: 1.25rem; }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) { * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: var(--color-accent); color: #fff; }