/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:#1a1a2e;line-height:1.6;background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border-radius:12px}
a{text-decoration:none;color:inherit}

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

/* ===== NAVBAR ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,0.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,0.06);padding:16px 0}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.nav-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.25rem;color:#1a1a2e}
.nav-logo{width:36px;height:36px}
.nav-links{display:flex;gap:32px}
.nav-links a{font-size:0.9rem;font-weight:500;color:#555;transition:color 0.2s}
.nav-links a:hover{color:#1a1a2e}

/* ===== HERO ===== */
.hero{padding:140px 0 80px;background:linear-gradient(135deg,#f8fffe 0%,#e8f5f3 50%,#f0f4ff 100%);overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;align-items:center}
.badge{display:inline-block;background:linear-gradient(135deg,#4ecdc4,#44b8a8);color:#fff;font-size:0.8rem;font-weight:600;padding:6px 16px;border-radius:50px;margin-bottom:20px;letter-spacing:0.02em}
.hero h1{font-size:3rem;font-weight:800;line-height:1.15;color:#1a1a2e;margin-bottom:20px;letter-spacing:-0.03em}
.hero-sub{font-size:1.15rem;color:#555;line-height:1.7;margin-bottom:32px;max-width:500px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-image{position:relative}
.hero-image img{border-radius:16px;box-shadow:0 24px 80px rgba(0,0,0,0.1),0 8px 24px rgba(0,0,0,0.06)}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 28px;border-radius:12px;font-weight:600;font-size:0.95rem;transition:all 0.25s ease;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,#1a1a2e,#2d2d44);color:#fff;box-shadow:0 4px 16px rgba(26,26,46,0.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,26,46,0.35)}
.btn-secondary{background:#fff;color:#1a1a2e;border:2px solid #e0e0e0}
.btn-secondary:hover{border-color:#1a1a2e;transform:translateY(-2px)}
.btn-lg{padding:18px 40px;font-size:1.05rem}

/* ===== FEATURES ===== */
.features{padding:100px 0;background:#fff}
.section-title{text-align:center;font-size:2.2rem;font-weight:800;color:#1a1a2e;margin-bottom:12px;letter-spacing:-0.02em}
.section-sub{text-align:center;font-size:1.1rem;color:#666;margin-bottom:60px;max-width:560px;margin-left:auto;margin-right:auto}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{background:#f8f9fa;border-radius:16px;padding:32px 28px;transition:all 0.3s ease;border:1px solid transparent}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 16px 48px rgba(0,0,0,0.08);border-color:rgba(78,205,196,0.3);background:#fff}
.feature-icon{font-size:2rem;margin-bottom:16px}
.feature-card h3{font-size:1.15rem;font-weight:700;margin-bottom:8px;color:#1a1a2e}
.feature-card p{font-size:0.92rem;color:#666;line-height:1.6}

/* ===== HOW IT WORKS ===== */
.how-it-works{padding:100px 0;background:linear-gradient(180deg,#f8f9fa,#fff)}
.steps-grid{display:flex;align-items:center;justify-content:center;gap:24px}
.step-card{background:#fff;border-radius:16px;padding:36px 28px;text-align:center;flex:1;max-width:300px;border:1px solid #eee;transition:all 0.3s ease}
.step-card:hover{box-shadow:0 12px 40px rgba(0,0,0,0.06);transform:translateY(-3px)}
.step-number{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;background:linear-gradient(135deg,#4ecdc4,#44b8a8);color:#fff;font-size:1.2rem;font-weight:700;border-radius:50%;margin-bottom:16px}
.step-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px}
.step-card p{font-size:0.9rem;color:#666}
.step-arrow{font-size:1.5rem;color:#ccc;font-weight:300}

/* ===== SCREENSHOTS ===== */
.screenshots{padding:100px 0;background:#fff}
.screenshots-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.screenshot-card{overflow:hidden;border-radius:16px;border:1px solid #eee;transition:all 0.3s ease}
.screenshot-card:hover{box-shadow:0 16px 48px rgba(0,0,0,0.08);transform:translateY(-4px)}
.screenshot-card img{border-radius:0;width:100%}
.screenshot-card p{padding:16px 20px;font-size:0.9rem;font-weight:600;color:#444;text-align:center;background:#f9f9f9}

/* ===== CTA ===== */
.cta{padding:100px 0;background:linear-gradient(135deg,#1a1a2e 0%,#2d2d44 100%);text-align:center}
.cta-inner h2{font-size:2.2rem;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:-0.02em}
.cta-inner p{font-size:1.1rem;color:rgba(255,255,255,0.7);margin-bottom:36px;max-width:500px;margin-left:auto;margin-right:auto}
.cta .btn-primary{background:linear-gradient(135deg,#4ecdc4,#44b8a8);box-shadow:0 4px 24px rgba(78,205,196,0.35)}
.cta .btn-primary:hover{box-shadow:0 8px 32px rgba(78,205,196,0.5)}

/* ===== FOOTER ===== */
.footer{padding:60px 0 0;background:#f8f9fa;border-top:1px solid #eee}
.footer-inner{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-logo{font-size:1.3rem;font-weight:700;color:#1a1a2e}
.footer-brand p{font-size:0.85rem;color:#888;margin-top:8px}
.footer-col h4{font-size:0.85rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:#999;margin-bottom:16px}
.footer-col a{display:block;font-size:0.9rem;color:#555;margin-bottom:10px;transition:color 0.2s}
.footer-col a:hover{color:#1a1a2e}
.footer-bottom{border-top:1px solid #eee;padding:20px 0;text-align:center}
.footer-bottom p{font-size:0.8rem;color:#999}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-sub{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .hero-image{margin-top:40px}
  .features-grid{grid-template-columns:1fr 1fr}
  .steps-grid{flex-direction:column}
  .step-arrow{transform:rotate(90deg)}
  .screenshots-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .hero h1{font-size:2rem}
  .features-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  .footer-inner{grid-template-columns:1fr}
  .section-title{font-size:1.7rem}
}