/* ═══ RESET & BASE ═══ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: #1e293b; line-height: 1.6; background: #fff; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ═══ UTILITIES ═══ */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.gradient-text {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    transition: opacity 0.3s, transform 0.3s;
    display: inline-block;
}

/* ═══ BUTTONS ═══ */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 10px; font-size: 15px; font-weight: 600; cursor: pointer; transition: all 0.2s; border: 2px solid transparent; }
.btn-primary { background: #2563eb; color: white; border-color: #2563eb; }
.btn-primary:hover { background: #1d4ed8; transform: translateY(-1px); box-shadow: 0 8px 25px rgba(37,99,235,0.3); }
.btn-outline { border-color: #d1d5db; color: #374151; background: white; }
.btn-outline:hover { border-color: #2563eb; color: #2563eb; }
.btn-ghost { color: #64748b; }
.btn-ghost:hover { color: #2563eb; }
.btn-white { background: white; color: #2563eb; }
.btn-white:hover { background: #f0f4ff; transform: translateY(-1px); box-shadow: 0 8px 25px rgba(255,255,255,0.3); }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: 12px; }
.btn-block { width: 100%; }

/* ═══ NAV ═══ */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,0.05); }
.nav-inner { display: flex; align-items: center; height: 64px; gap: 40px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; }
.logo-icon { width: 34px; height: 34px; background: linear-gradient(135deg, #2563eb, #7c3aed); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: white; font-weight: 800; font-size: 18px; }
.logo-text { color: #1e293b; }
.nav-links { display: flex; gap: 32px; flex: 1; }
.nav-links a { font-size: 14px; font-weight: 500; color: #64748b; transition: color 0.15s; }
.nav-links a:hover { color: #2563eb; }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; color: #64748b; }

/* ═══ HERO ═══ */
.hero { padding: 150px 0 80px; text-align: center; background: linear-gradient(180deg, #f8faff 0%, #ffffff 100%); overflow: hidden; }
.hero-title { font-size: 60px; font-weight: 900; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 24px; }
.hero-line { display: block; }
.hero-small { font-size: 28px; font-weight: 500; color: #64748b; margin-top: 8px; }
.hero-sub { font-size: 18px; color: #64748b; max-width: 580px; margin: 0 auto 36px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 16px; }
.hero-note { font-size: 13px; color: #94a3b8; }

/* ═══ SOCIAL PROOF ═══ */
.social-proof { padding: 40px 0; border-bottom: 1px solid #f1f5f9; }
.proof-text { text-align: center; font-size: 13px; color: #94a3b8; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; margin-bottom: 16px; }
.proof-stats { display: flex; justify-content: center; gap: 40px; align-items: center; }
.proof-item { font-size: 15px; color: #64748b; }
.proof-item strong { color: #1e293b; font-size: 20px; font-weight: 800; }
.proof-divider { width: 1px; height: 30px; background: #e2e8f0; }

/* ═══ SECTIONS ═══ */
.section { padding: 100px 0; }
.section-light { background: #f8fafc; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-title { font-size: 38px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; }
.section-sub { font-size: 17px; color: #64748b; max-width: 520px; margin: 0 auto; }

/* ═══ PROBLEM / SOLUTION ═══ */
.problem-solution { display: flex; gap: 40px; align-items: center; }
.problem, .solution { flex: 1; padding: 36px; border-radius: 16px; }
.problem { background: #fef2f2; border: 1px solid #fecaca; }
.solution { background: #f0fdf4; border: 1px solid #bbf7d0; }
.ps-badge { display: inline-block; padding: 4px 12px; border-radius: 12px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }
.ps-red { background: #fee2e2; color: #dc2626; }
.ps-green { background: #dcfce7; color: #16a34a; }
.ps-arrow { font-size: 32px; color: #d1d5db; flex-shrink: 0; }
.problem-solution h3 { font-size: 20px; font-weight: 700; margin-bottom: 16px; }
.ps-list li { padding: 6px 0; font-size: 15px; color: #475569; padding-left: 24px; position: relative; }
.ps-list li::before { content: '✕'; position: absolute; left: 0; color: #ef4444; font-weight: 700; }
.ps-check li::before { content: '✓'; color: #16a34a; }

/* ═══ SOLUTIONS GRID ═══ */
.solutions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.sol-card { padding: 28px; background: white; border: 1px solid #e2e8f0; border-radius: 14px; transition: all 0.25s; cursor: default; }
.sol-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.06); border-color: transparent; }
.sol-emoji { font-size: 36px; margin-bottom: 14px; }
.sol-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.sol-card p { font-size: 14px; color: #64748b; line-height: 1.6; }

/* ═══ STEPS ═══ */
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 0; }
.step { text-align: center; flex: 1; max-width: 280px; }
.step-number { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, #2563eb, #7c3aed); color: white; font-size: 24px; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.step h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 14px; color: #64748b; }
.step-line { width: 80px; height: 2px; background: #e2e8f0; margin-top: 28px; flex-shrink: 0; }

/* ═══ TESTIMONIALS ═══ */
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial { padding: 28px; background: white; border: 1px solid #e2e8f0; border-radius: 14px; }
.testi-text { font-size: 15px; line-height: 1.7; color: #374151; margin-bottom: 20px; font-style: italic; }
.testi-author { display: flex; align-items: center; gap: 12px; }
.testi-avatar { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, #2563eb, #7c3aed); color: white; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; flex-shrink: 0; }
.testi-author strong { font-size: 14px; }
.testi-author span { font-size: 12px; color: #94a3b8; }

/* ═══ PRICING ═══ */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.price-card { padding: 36px; border: 1px solid #e2e8f0; border-radius: 16px; text-align: center; position: relative; background: white; }
.price-featured { border-color: #2563eb; box-shadow: 0 12px 40px rgba(37,99,235,0.1); transform: scale(1.03); }
.price-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); padding: 4px 16px; background: #2563eb; color: white; border-radius: 12px; font-size: 12px; font-weight: 700; }
.price-name { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.price-amount { font-size: 48px; font-weight: 900; margin-bottom: 4px; letter-spacing: -0.03em; }
.price-currency { font-size: 24px; vertical-align: top; margin-right: 2px; color: #64748b; }
.price-period { font-size: 16px; font-weight: 500; color: #94a3b8; }
.price-desc { font-size: 14px; color: #64748b; margin-bottom: 24px; }
.price-features { margin-bottom: 28px; }
.price-features li { padding: 8px 0; font-size: 14px; color: #475569; border-bottom: 1px solid #f1f5f9; text-align: left; }
.price-features li:last-child { border: none; }

/* ═══ FAQ ═══ */
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq { border: 1px solid #e2e8f0; border-radius: 12px; overflow: hidden; }
.faq summary { padding: 18px 24px; font-size: 15px; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; transition: background 0.15s; }
.faq summary:hover { background: #f8fafc; }
.faq summary::after { content: '+'; font-size: 20px; color: #94a3b8; font-weight: 300; transition: transform 0.2s; }
.faq[open] summary::after { content: '−'; }
.faq p { padding: 0 24px 18px; font-size: 14px; color: #64748b; line-height: 1.7; }

/* ═══ CTA ═══ */
.section-cta { background: linear-gradient(135deg, #2563eb, #7c3aed); padding: 80px 0; }

/* ═══ FOOTER ═══ */
.footer { background: #0f172a; color: #94a3b8; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer-logo .logo-text { color: white; font-size: 20px; font-weight: 700; }
.footer-desc { font-size: 14px; line-height: 1.6; }
.footer-heading { color: white; font-size: 14px; font-weight: 700; margin-bottom: 16px; }
.footer-grid a { display: block; font-size: 13px; padding: 4px 0; transition: color 0.15s; }
.footer-grid a:hover { color: white; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; font-size: 12px; }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
    .hero-title { font-size: 46px; }
    .hero-small { font-size: 22px; }
    .section-title { font-size: 30px; }
    .solutions-grid, .testimonials, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .price-featured { transform: scale(1); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .problem-solution { flex-direction: column; }
    .ps-arrow { transform: rotate(90deg); }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions { display: none; }
    .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: white; padding: 20px 24px; box-shadow: 0 8px 30px rgba(0,0,0,0.08); gap: 16px; }
    .nav-toggle { display: block; }
    .hero { padding: 110px 0 60px; }
    .hero-title { font-size: 36px; }
    .hero-small { font-size: 18px; }
    .hero-sub { font-size: 16px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .proof-stats { flex-direction: column; gap: 12px; }
    .proof-divider { width: 40px; height: 1px; }
    .solutions-grid, .testimonials, .pricing-grid { grid-template-columns: 1fr; }
    .steps { flex-direction: column; align-items: center; gap: 24px; }
    .step-line { width: 2px; height: 40px; }
    .section { padding: 60px 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}