/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { font-family: 'Inter', -apple-system, sans-serif; color: #1a1a2e; line-height: 1.6; background: #fff; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== UTILITIES ===== */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section-title { font-size: 2.5rem; font-weight: 800; text-align: center; margin-bottom: 12px; }
.section-subtitle { text-align: center; font-size: 1.15rem; color: #64748b; margin-bottom: 56px; max-width: 600px; margin-left: auto; margin-right: auto; }
.highlight { color: #2563eb; }

/* ===== BUTTONS ===== */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 12px; font-weight: 600; font-size: 1rem; transition: all .3s ease; cursor: pointer; border: 2px solid transparent; }
.btn-primary { background: #2563eb; color: #fff; border-color: #2563eb; }
.btn-primary:hover { background: #1d4ed8; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,.35); }
.btn-outline { background: transparent; color: #2563eb; border-color: #2563eb; }
.btn-outline:hover { background: #2563eb; color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 16px 36px; font-size: 1.1rem; }
.btn-nav { padding: 10px 24px; font-size: .9rem; }

/* ===== HEADER ===== */
.header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(255,255,255,.92); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,.06); transition: box-shadow .3s; }
.header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.08); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 1.8rem; }
.logo-text { font-size: 1.4rem; font-weight: 800; color: #2563eb; }
.nav { display: flex; align-items: center; gap: 32px; }
.nav a { font-weight: 500; font-size: .95rem; color: #475569; transition: color .2s; }
.nav a:hover { color: #2563eb; }
.menu-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.menu-toggle span { display: block; width: 24px; height: 2.5px; background: #1a1a2e; border-radius: 2px; transition: all .3s; }

/* ===== HERO ===== */
.hero { padding: 140px 0 80px; background: linear-gradient(135deg, #f0f5ff 0%, #e8f0fe 50%, #f8fafc 100%); }
.hero .container { display: flex; align-items: center; gap: 60px; }
.hero-content { flex: 1; }
.hero-badge { display: inline-block; background: #dbeafe; color: #2563eb; padding: 8px 18px; border-radius: 50px; font-size: .9rem; font-weight: 600; margin-bottom: 24px; }
.hero h1 { font-size: 3.2rem; font-weight: 800; line-height: 1.15; margin-bottom: 20px; }
.hero-subtitle { font-size: 1.2rem; color: #64748b; line-height: 1.7; margin-bottom: 36px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image { flex: 1; display: flex; justify-content: center; }

/* ===== IMAGES ===== */
.hero-image img { border-radius: 20px; box-shadow: 0 20px 60px rgba(0,0,0,.12); max-height: 450px; object-fit: cover; }
.feature-image img { border-radius: 16px; box-shadow: 0 12px 40px rgba(0,0,0,.1); width: 100%; object-fit: cover; }
.separation-image img { border-radius: 16px; box-shadow: 0 12px 40px rgba(0,0,0,.1); width: 100%; object-fit: cover; }

/* ===== PAIN POINTS ===== */
.pain-points { padding: 100px 0; background: #fff; }
.pain-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 28px; margin-top: 48px; }
.pain-card { background: #fef2f2; border: 1px solid #fecaca; border-radius: 16px; padding: 32px; transition: transform .3s, box-shadow .3s; }
.pain-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.08); }
.pain-icon { font-size: 2.2rem; margin-bottom: 16px; }
.pain-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: #991b1b; }
.pain-card p { font-size: .95rem; color: #7f1d1d; line-height: 1.6; }

/* ===== FEATURES ===== */
.features { padding: 100px 0; background: #f8fafc; }
.feature-block { display: flex; align-items: center; gap: 60px; margin-bottom: 80px; }
.feature-block.reverse { flex-direction: row-reverse; }
.feature-block:last-child { margin-bottom: 0; }
.feature-image { flex: 1; }
.feature-text { flex: 1; }
.feature-tag { display: inline-block; background: #dbeafe; color: #2563eb; padding: 6px 16px; border-radius: 50px; font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 16px; }
.feature-text h3 { font-size: 1.8rem; font-weight: 700; margin-bottom: 20px; }
.feature-list li { padding: 8px 0; font-size: 1.05rem; color: #334155; }
.feature-list.numbered { list-style: none; counter-reset: feature-counter; }
.feature-list.numbered li { counter-increment: feature-counter; }
.feature-desc { font-size: 1.05rem; color: #64748b; margin-bottom: 20px; line-height: 1.6; }
.feature-desc-secondary { font-size: 1rem; color: #2563eb; font-weight: 600; font-style: italic; }
.feature-subheading { font-size: 1rem; font-weight: 700; color: #2563eb; margin: 20px 0 8px; text-transform: uppercase; letter-spacing: .5px; }
.feature-subheading:first-of-type { margin-top: 0; }

/* ===== HOW IT WORKS ===== */
.how-it-works { padding: 100px 0; background: #fff; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.step-card { text-align: center; padding: 40px 28px; background: #f8fafc; border-radius: 16px; border: 1px solid #e2e8f0; transition: transform .3s, box-shadow .3s; }
.step-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.08); }
.step-number { width: 56px; height: 56px; background: #2563eb; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 800; margin: 0 auto 20px; }
.step-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.step-card p { color: #64748b; font-size: .95rem; }

/* ===== SEPARATION MODULE ===== */
.separation-module { padding: 80px 0; background: linear-gradient(135deg, #eff6ff, #dbeafe); }
.separation-content { text-align: center; max-width: 700px; margin: 0 auto; }
.separation-content h2 { font-size: 2rem; font-weight: 800; margin: 12px 0 16px; }
.separation-content p { font-size: 1.1rem; color: #475569; margin-bottom: 16px; }
.separation-content p:last-of-type { margin-bottom: 32px; }
.separation-image { max-width: 500px; margin: 0 auto; }

/* ===== ADVANTAGES ===== */
.advantages { padding: 100px 0; background: #fff; }
.adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px; margin-top: 48px; }
.adv-card { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 16px; padding: 32px; transition: transform .3s, box-shadow .3s; }
.adv-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.08); }
.adv-icon { font-size: 2.2rem; margin-bottom: 16px; }
.adv-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.adv-card p { font-size: .95rem; color: #64748b; line-height: 1.6; }

/* ===== CTA ===== */
.cta-section { padding: 100px 0; background: linear-gradient(135deg, #1e3a8a, #2563eb); color: #fff; }
.cta-content { text-align: center; max-width: 650px; margin: 0 auto; }
.cta-content h2 { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
.cta-content p { font-size: 1.15rem; opacity: .9; margin-bottom: 36px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-section .btn-primary { background: #fff; color: #2563eb; border-color: #fff; }
.cta-section .btn-primary:hover { background: #f0f5ff; box-shadow: 0 8px 24px rgba(0,0,0,.2); }
.cta-section .btn-outline { color: #fff; border-color: #fff; }
.cta-section .btn-outline:hover { background: #fff; color: #2563eb; }

/* ===== FOOTER ===== */
.footer { padding: 40px 0; background: #0f172a; color: #94a3b8; }
.footer-content { text-align: center; }
.footer .logo-text { color: #fff; }
.footer-text { margin: 12px 0 8px; font-size: .95rem; }
.footer-copy { font-size: .85rem; opacity: .6; }

/* ===== ANIMATIONS ===== */
[data-aos] { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
[data-aos].visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .hero .container { flex-direction: column; text-align: center; }
    .hero h1 { font-size: 2.4rem; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .feature-block, .feature-block.reverse { flex-direction: column; gap: 32px; }
    .steps-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .section-title { font-size: 2rem; }
}
@media (max-width: 680px) {
    .nav { position: fixed; top: 72px; left: 0; width: 100%; background: #fff; flex-direction: column; padding: 24px; gap: 20px; transform: translateY(-120%); transition: transform .3s ease; box-shadow: 0 8px 24px rgba(0,0,0,.08); }
    .nav.open { transform: translateY(0); }
    .menu-toggle { display: flex; }
    .hero h1 { font-size: 2rem; }
    .cta-content h2 { font-size: 1.8rem; }
    .pain-grid { grid-template-columns: 1fr; }
    .adv-grid { grid-template-columns: 1fr; }
}