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

:root {
    --primary: #4F46E5;
    --primary-dark: #3730A3;
    --primary-light: #EEF2FF;
    --accent: #10B981;
    --accent-dark: #059669;
    --warning: #F59E0B;
    --danger: #EF4444;
    --text: #111827;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    --bg: #FFFFFF;
    --bg-alt: #F9FAFB;
    --card-shadow: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -1px rgba(0,0,0,.04);
    --card-shadow-lg: 0 10px 25px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --transition: 0.2s ease;
}

body { font-family: 'Inter', sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; cursor: pointer; border: none; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: linear-gradient(135deg, var(--primary), #7C3AED); color: #fff; box-shadow: 0 4px 15px rgba(79,70,229,.3); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(79,70,229,.4); }
.btn-outline { background: transparent; border: 2px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-accent { background: linear-gradient(135deg, var(--accent), #34D399); color: #fff; box-shadow: 0 4px 15px rgba(16,185,129,.3); }
.btn-accent:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(16,185,129,.4); }
.btn-lg { padding: 16px 36px; font-size: 17px; border-radius: var(--radius); }
.btn-sm { padding: 8px 16px; font-size: 13px; }

/* NAVBAR */
.navbar { position: sticky; top: 0; background: rgba(255,255,255,.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); z-index: 1000; padding: 0; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 800; color: var(--primary); }
.logo-icon { font-size: 22px; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link { padding: 8px 14px; border-radius: var(--radius-sm); color: var(--text-muted); font-weight: 500; transition: all var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--primary); background: var(--primary-light); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); }

/* HERO */
.hero { padding: 100px 0 80px; text-align: center; background: linear-gradient(180deg, #EEF2FF 0%, #FFFFFF 100%); position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 800px; height: 800px; background: radial-gradient(circle, rgba(79,70,229,.08) 0%, transparent 70%); pointer-events: none; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-light); color: var(--primary); border: 1px solid rgba(79,70,229,.2); padding: 6px 16px; border-radius: 100px; font-size: 13px; font-weight: 600; margin-bottom: 28px; }
.hero h1 { font-size: clamp(36px, 6vw, 64px); font-weight: 800; line-height: 1.1; color: var(--text); margin-bottom: 24px; }
.hero h1 span { background: linear-gradient(135deg, var(--primary), #7C3AED); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 20px; color: var(--text-muted); max-width: 560px; margin: 0 auto 40px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 48px; justify-content: center; margin-top: 60px; padding-top: 40px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.hero-stat strong { display: block; font-size: 32px; font-weight: 800; color: var(--primary); }
.hero-stat span { font-size: 14px; color: var(--text-muted); font-weight: 500; }

/* SECTIONS */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag { display: inline-block; background: var(--primary-light); color: var(--primary); padding: 4px 14px; border-radius: 100px; font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.section-header h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; color: var(--text); margin-bottom: 16px; }
.section-header p { font-size: 18px; color: var(--text-muted); max-width: 560px; margin: 0 auto; }

/* FEATURE CARDS */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.feature-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; transition: all var(--transition); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--card-shadow-lg); border-color: var(--primary); }
.feature-icon { width: 52px; height: 52px; border-radius: var(--radius-sm); background: var(--primary-light); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 20px; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 15px; line-height: 1.6; }

/* HOW IT WORKS */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 40px; position: relative; }
.step { text-align: center; }
.step-num { width: 56px; height: 56px; background: linear-gradient(135deg, var(--primary), #7C3AED); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 800; margin: 0 auto 20px; }
.step h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.step p { color: var(--text-muted); font-size: 14px; }

/* PRICING */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 900px; margin: 0 auto; }
.pricing-card { background: var(--bg); border: 2px solid var(--border); border-radius: var(--radius-lg); padding: 40px; transition: all var(--transition); position: relative; }
.pricing-card.featured { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(79,70,229,.1); }
.pricing-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, var(--primary), #7C3AED); color: #fff; padding: 4px 18px; border-radius: 100px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.pricing-name { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.pricing-price { font-size: 48px; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.pricing-price span { font-size: 18px; font-weight: 500; color: var(--text-muted); }
.pricing-desc { color: var(--text-muted); font-size: 14px; margin-bottom: 28px; }
.pricing-features { list-style: none; margin-bottom: 32px; display: flex; flex-direction: column; gap: 12px; }
.pricing-features li { display: flex; align-items: center; gap: 10px; font-size: 15px; }
.pricing-features li::before { content: '✓'; color: var(--accent); font-weight: 700; }

/* TESTIMONIALS */
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.testimonial-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.stars { color: var(--warning); font-size: 18px; margin-bottom: 14px; }
.testimonial-card p { color: var(--text); font-size: 15px; line-height: 1.7; margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), #7C3AED); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 16px; }
.author-name { font-weight: 700; font-size: 15px; }
.author-biz { font-size: 13px; color: var(--text-muted); }

/* FAQ */
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.faq-question { width: 100%; background: var(--bg); border: none; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-size: 16px; font-weight: 600; text-align: left; transition: background var(--transition); }
.faq-question:hover { background: var(--bg-alt); }
.faq-question .icon { font-size: 20px; transition: transform var(--transition); }
.faq-item.open .faq-question .icon { transform: rotate(45deg); }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: all var(--transition); }
.faq-item.open .faq-answer { padding: 0 24px 20px; max-height: 200px; }
.faq-answer p { color: var(--text-muted); font-size: 15px; line-height: 1.7; }

/* CTA SECTION */
.cta-section { background: linear-gradient(135deg, var(--primary), #7C3AED); padding: 80px 0; text-align: center; color: #fff; }
.cta-section h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 18px; opacity: .85; margin-bottom: 36px; }
.cta-section .btn-outline { border-color: rgba(255,255,255,.5); color: #fff; }
.cta-section .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.1); }

/* FOOTER */
.footer { background: #111827; color: #9CA3AF; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .nav-logo { color: #fff; margin-bottom: 16px; display: inline-flex; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 260px; }
.footer-col h4 { color: #fff; font-weight: 700; font-size: 15px; margin-bottom: 16px; }
.footer-col a { display: block; color: #9CA3AF; font-size: 14px; margin-bottom: 10px; transition: color var(--transition); }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #1F2937; padding: 24px 0; text-align: center; font-size: 14px; }

/* ALERT */
.alert { padding: 14px 20px; border-radius: var(--radius-sm); margin-bottom: 20px; font-size: 14px; font-weight: 500; }
.alert-success { background: #D1FAE5; color: #065F46; border: 1px solid #A7F3D0; }
.alert-error { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }
.alert-info { background: var(--primary-light); color: var(--primary-dark); border: 1px solid rgba(79,70,229,.2); }

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-links { display: none; position: fixed; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 16px; flex-direction: column; align-items: stretch; z-index: 999; }
    .nav-links.open { display: flex; }
    .nav-toggle { display: flex; }
    .nav-actions .btn-outline { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .hero-stats { gap: 28px; }
    .hero-actions { flex-direction: column; align-items: center; }
}
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}