/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: #1a1a2e; line-height: 1.6; background: #fff;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.97); backdrop-filter: blur(12px); border-bottom: 1px solid #f0f0f0; padding: 14px 0; }
.nav-inner { max-width: 1140px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.2rem; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 0.95rem; }
.nav-links a { color: #555; transition: color 0.2s; }
.nav-links a:hover { color: #4F46E5; }
.nav-links a.btn-primary { color: #fff !important; }
.nav-links a.btn-primary:hover { color: #fff !important; }

/* Buttons */
.btn-primary { display: inline-block; padding: 12px 24px; background: #4F46E5; color: #fff; border-radius: 8px; font-weight: 600; font-size: 0.95rem; transition: all 0.2s; }
.btn-primary:hover { background: #4338CA; transform: translateY(-1px); }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-ghost { color: #4F46E5 !important; font-weight: 500; }
.btn-outline { display: inline-block; padding: 12px 24px; border: 2px solid #4F46E5; color: #4F46E5; border-radius: 8px; font-weight: 600; font-size: 0.95rem; transition: all 0.2s; }
.btn-outline:hover { background: #4F46E5; color: #fff; }
.btn-secondary { color: #4F46E5; font-weight: 600; font-size: 0.95rem; }
.btn-secondary:hover { text-decoration: underline; }

/* Hero */
.hero { padding: 80px 0 40px; text-align: center; background: linear-gradient(180deg, #f8f7ff 0%, #fff 100%); }
.hero-badge { display: inline-block; background: #EEF2FF; color: #4F46E5; padding: 6px 16px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; margin-bottom: 24px; }
.hero h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.1; max-width: 700px; margin: 0 auto 20px; letter-spacing: -0.02em; }
.hero-sub { font-size: 1.2rem; color: #555; max-width: 560px; margin: 0 auto 36px; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap; }
.hero-note { font-size: 0.85rem; color: #888; }

/* Product Screenshot */
.product-hero { padding: 20px 0 80px; }
.product-screenshot { max-width: 1000px; margin: 0 auto; }
.app-window { background: #fff; border-radius: 12px; box-shadow: 0 20px 80px rgba(79,70,229,0.12), 0 4px 20px rgba(0,0,0,0.08); overflow: hidden; border: 1px solid #e5e5e5; }
.app-titlebar { background: #f9fafb; border-bottom: 1px solid #e5e5e5; padding: 12px 16px; display: flex; align-items: center; gap: 16px; }
.titlebar-dots { display: flex; gap: 6px; }
.titlebar-dots span { width: 10px; height: 10px; border-radius: 50%; }
.titlebar-dots span:nth-child(1) { background: #EF4444; }
.titlebar-dots span:nth-child(2) { background: #F59E0B; }
.titlebar-dots span:nth-child(3) { background: #10B981; }
.titlebar-tabs { display: flex; gap: 4px; margin-left: 20px; }
.titlebar-tabs .tab { padding: 6px 14px; border-radius: 6px; font-size: 0.8rem; color: #666; cursor: pointer; }
.titlebar-tabs .tab.active { background: #fff; color: #1a1a2e; font-weight: 600; box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
.app-body { display: flex; min-height: 380px; }
.app-sidebar { width: 200px; background: #f9fafb; border-right: 1px solid #e5e5e5; padding: 16px 12px; }
.sidebar-item { padding: 8px 12px; border-radius: 6px; font-size: 0.8rem; color: #555; display: flex; align-items: center; gap: 8px; cursor: pointer; }
.sidebar-item.active { background: #EEF2FF; color: #4F46E5; font-weight: 600; }
.sidebar-item:hover { background: #f0f0f0; }
.si-icon { font-size: 0.9rem; }
.si-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.sidebar-section { font-size: 0.7rem; text-transform: uppercase; color: #999; padding: 16px 12px 6px; font-weight: 600; letter-spacing: 0.5px; }
.app-main { flex: 1; padding: 20px; }
.main-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.main-header h3 { font-size: 1.1rem; }
.header-meta { display: flex; gap: 12px; align-items: center; }
.badge-progress { background: #EEF2FF; color: #4F46E5; padding: 4px 10px; border-radius: 12px; font-size: 0.75rem; font-weight: 600; }
.badge-members { font-size: 0.8rem; color: #888; }
.task-columns { display: flex; gap: 16px; }
.task-col { flex: 1; }
.col-header { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; color: #888; margin-bottom: 12px; letter-spacing: 0.5px; }
.col-count { background: #f0f0f0; padding: 2px 6px; border-radius: 8px; font-size: 0.7rem; }
.task-card { background: #fff; border: 1px solid #e5e5e5; border-radius: 8px; padding: 12px; margin-bottom: 8px; transition: box-shadow 0.2s; }
.task-card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.task-card.highlight { border-left: 3px solid #4F46E5; }
.task-card.done { opacity: 0.6; }
.task-card.done .tc-title { text-decoration: line-through; }
.tc-title { font-size: 0.8rem; font-weight: 500; margin-bottom: 8px; }
.tc-meta { display: flex; align-items: center; gap: 6px; }
.tc-tag { font-size: 0.65rem; padding: 2px 6px; border-radius: 4px; font-weight: 600; }
.tc-tag.design { background: #FEF3C7; color: #92400E; }
.tc-tag.dev { background: #DBEAFE; color: #1E40AF; }
.tc-avatar { width: 20px; height: 20px; border-radius: 50%; background: #E5E7EB; font-size: 0.55rem; display: flex; align-items: center; justify-content: center; font-weight: 700; color: #555; margin-left: auto; }
.tc-priority { color: #EF4444; font-weight: 700; font-size: 0.75rem; }

/* Social Proof */
.social-proof { padding: 50px 0; text-align: center; }
.proof-text { font-size: 0.85rem; color: #999; margin-bottom: 20px; text-transform: uppercase; letter-spacing: 1px; font-weight: 500; }
.logos { display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; }
.logo-placeholder { font-size: 1.1rem; color: #ccc; font-weight: 700; }

/* Walkthrough */
.walkthrough { padding: 100px 0; }
.section-title { font-size: 2.4rem; font-weight: 800; text-align: center; margin-bottom: 16px; letter-spacing: -0.02em; }
.section-sub { text-align: center; color: #666; font-size: 1.1rem; margin-bottom: 70px; }
.feature-block { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 100px; }
.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }
.feature-label { display: inline-block; background: #EEF2FF; color: #4F46E5; padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; margin-bottom: 12px; }
.feature-text h3 { font-size: 1.7rem; font-weight: 700; margin-bottom: 14px; }
.feature-text p { color: #555; font-size: 1.05rem; margin-bottom: 16px; }
.check-list li { padding: 5px 0 5px 22px; position: relative; color: #444; font-size: 0.95rem; }
.check-list li::before { content: '✓'; position: absolute; left: 0; color: #4F46E5; font-weight: 700; }
.link-arrow { color: #4F46E5; font-weight: 600; font-size: 0.95rem; display: inline-block; margin-top: 12px; }
.link-arrow:hover { text-decoration: underline; }

/* Mini App Visuals */
.feature-visual { background: #f9fafb; border-radius: 12px; border: 1px solid #e5e5e5; padding: 24px; }
.mini-app { }
.mini-task { padding: 12px 16px; border-bottom: 1px solid #eee; font-size: 0.9rem; display: flex; align-items: center; gap: 12px; }
.mini-task:last-child { border-bottom: none; }
.mini-task .check { width: 18px; height: 18px; border: 2px solid #ddd; border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; flex-shrink: 0; }
.mini-task .done-check { background: #4F46E5; border-color: #4F46E5; color: #fff; }
.mini-task.active-task { background: #EEF2FF; border-radius: 6px; font-weight: 500; }
.mini-tag { margin-left: auto; background: #DBEAFE; color: #1E40AF; padding: 2px 8px; border-radius: 4px; font-size: 0.7rem; font-weight: 600; }

.mini-chat { }
.chat-msg { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid #f0f0f0; }
.chat-msg:last-child { border-bottom: none; }
.chat-avatar { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.7rem; font-weight: 700; flex-shrink: 0; }
.chat-body strong { font-size: 0.85rem; }
.chat-time { font-size: 0.75rem; color: #999; margin-left: 8px; }
.chat-body p { font-size: 0.85rem; color: #444; margin-top: 4px; }

.mini-report { }
.report-header { font-weight: 700; font-size: 0.95rem; margin-bottom: 16px; }
.report-row { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.rr-label { font-size: 0.8rem; width: 130px; color: #555; flex-shrink: 0; }
.rr-bar { flex: 1; height: 8px; background: #f0f0f0; border-radius: 4px; overflow: hidden; }
.rr-fill { height: 100%; border-radius: 4px; transition: width 0.3s; }
.rr-pct { font-size: 0.8rem; font-weight: 600; color: #333; width: 36px; text-align: right; }
.report-stats { display: flex; gap: 24px; margin-top: 20px; padding-top: 16px; border-top: 1px solid #eee; }
.rs-item { text-align: center; flex: 1; }
.rs-num { font-size: 1.5rem; font-weight: 800; color: #4F46E5; }
.rs-label { font-size: 0.7rem; color: #888; margin-top: 2px; }

/* Features Grid */
.features-grid-section { padding: 80px 0; background: #f9fafb; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: #fff; padding: 28px; border-radius: 12px; border: 1px solid #eee; transition: all 0.2s; }
.feature-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.06); transform: translateY(-2px); }
.feature-icon { font-size: 1.8rem; margin-bottom: 12px; }
.feature-card h4 { font-size: 1rem; margin-bottom: 6px; }
.feature-card p { color: #666; font-size: 0.9rem; }

/* Testimonials */
.testimonials { padding: 100px 0; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card { background: #f9f9ff; padding: 28px; border-radius: 12px; border: 1px solid #eee; }
.stars { color: #F59E0B; margin-bottom: 12px; font-size: 0.9rem; }
.testimonial-card p { font-size: 0.95rem; color: #333; margin-bottom: 16px; line-height: 1.6; }
.testimonial-author strong { display: block; font-size: 0.9rem; }
.testimonial-author span { font-size: 0.8rem; color: #888; }

/* Pricing */
.pricing-preview { padding: 100px 0; background: #f9fafb; }
.pricing-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 900px; margin: 0 auto; }
.price-card { background: #fff; padding: 36px 28px; border-radius: 12px; border: 1px solid #eee; text-align: center; }
.price-card.featured { border: 2px solid #4F46E5; box-shadow: 0 4px 20px rgba(79,70,229,0.1); }
.price-card h4 { font-size: 1.1rem; margin-bottom: 8px; }
.price { font-size: 2.6rem; font-weight: 800; margin-bottom: 4px; }
.price span { font-size: 0.9rem; font-weight: 400; color: #888; }
.price-card > p { color: #666; font-size: 0.85rem; margin-bottom: 20px; }
.price-card ul { margin-bottom: 24px; }
.price-card li { padding: 5px 0; font-size: 0.85rem; color: #555; }

/* CTA */
.cta { padding: 100px 0; text-align: center; background: linear-gradient(180deg, #fff 0%, #f8f7ff 100%); }
.cta h2 { font-size: 2.4rem; font-weight: 800; margin-bottom: 12px; }
.cta p { color: #666; font-size: 1.1rem; margin-bottom: 32px; }

/* Footer */
.footer { padding: 60px 0 30px; background: #1a1a2e; color: #ccc; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; margin-bottom: 40px; }
.footer-col h5 { color: #fff; font-size: 0.8rem; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.5px; }
.footer-col a { display: block; padding: 3px 0; font-size: 0.85rem; color: #aaa; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #333; padding-top: 20px; font-size: 0.8rem; color: #666; }

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .app-sidebar { display: none; }
    .task-columns { flex-direction: column; }
    .feature-block { grid-template-columns: 1fr; gap: 30px; }
    .feature-block.reverse { direction: ltr; }
    .features-grid, .testimonial-grid, .pricing-cards { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .nav-links { display: none; }
    .report-stats { flex-direction: column; gap: 12px; }
}