/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:#0f172a;background:#fafaf9;line-height:1.6;overflow-x:hidden}

/* ===== UTILITIES ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:600;border:none;border-radius:10px;cursor:pointer;transition:all .2s ease;text-decoration:none;font-family:inherit}
.btn-primary{background:#4f46e5;color:#fff;padding:14px 32px;font-size:1rem;box-shadow:0 1px 3px rgba(79,70,229,.3)}
.btn-primary:hover{background:#4338ca;box-shadow:0 4px 14px rgba(79,70,229,.35)}
.btn-sm{padding:10px 20px;font-size:.875rem}

/* ===== NAVBAR ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(250,250,249,.85);backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,.06)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.35rem;font-weight:800;color:#4f46e5;text-decoration:none;letter-spacing:-.5px}
.nav-links{display:flex;gap:32px}
.nav-links a{font-size:.9rem;font-weight:500;color:#475569;text-decoration:none;transition:color .15s}
.nav-links a:hover{color:#4f46e5}
.nav-cta{background:#4f46e5;color:#fff;padding:8px 20px;border-radius:8px;font-size:.875rem;font-weight:600;text-decoration:none;transition:background .2s}
.nav-cta:hover{background:#4338ca}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.hamburger span{width:22px;height:2px;background:#0f172a;border-radius:2px;transition:all .2s}

/* ===== HERO ===== */
.hero{text-align:center;padding:100px 24px 24px;max-width:820px;margin:0 auto}
.hero-badge{display:inline-block;background:#eef2ff;color:#4f46e5;font-size:.8rem;font-weight:600;padding:6px 16px;border-radius:100px;margin-bottom:16px;letter-spacing:.02em}
.hero h1{font-size:clamp(2.4rem,5.5vw,3.8rem);font-weight:800;line-height:1.1;letter-spacing:-.03em;margin-bottom:20px;color:#0f172a}
.hero-sub{font-size:1.15rem;color:#64748b;max-width:560px;margin:0 auto 24px;line-height:1.7}
.hero-trust-row{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;margin-top:28px}
.trust-item{display:flex;align-items:center;gap:8px;font-size:.82rem;color:#64748b;font-weight:500}
.early-access-note{font-size:.82rem;color:#4f46e5;font-weight:500;margin-top:14px;opacity:.85;letter-spacing:.01em}

/* ===== FOUNDER STORY ===== */
.founder-story{padding:64px 24px;text-align:center;background:#f8fafc;border-top:1px solid #f1f5f9;border-bottom:1px solid #f1f5f9}
.founder-story-inner{max-width:600px;margin:0 auto}
.founder-quote{font-size:1.2rem;font-weight:600;color:#1e293b;line-height:1.5;margin-bottom:12px}
.founder-sub{font-size:.95rem;color:#64748b;line-height:1.6}

/* ===== DEMO SECTION ===== */
.demo-section{padding:0 24px 80px;display:flex;justify-content:center}
.demo-full{max-width:900px;width:100%;margin:0 auto;text-align:center}
.demo-video-full{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 100%);border-radius:16px;overflow:hidden;box-shadow:0 8px 40px rgba(79,70,229,.18);margin:0 auto}
.demo-video-full video{width:100%;height:100%;object-fit:cover;border-radius:16px;display:block}
.video-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(79,70,229,.85) 0%,rgba(124,58,237,.85) 100%);border-radius:16px;cursor:pointer;transition:opacity .3s}
.video-overlay.hidden{opacity:0;pointer-events:none}
.video-overlay p{margin-top:14px;font-weight:600;font-size:1.1rem;color:#fff;opacity:.9}
.demo-heading{font-size:1.4rem;font-weight:700;color:#0f172a;margin-bottom:24px;letter-spacing:-.01em}
.demo-cta-row{text-align:center;margin-top:32px}
.demo-cta-row p{font-size:.88rem;color:#94a3b8;margin-top:14px}
.btn-lg{padding:16px 40px;font-size:1.05rem}

/* ===== TRUSTED BY (MARQUEE) ===== */
.trusted-section{padding:48px 24px 64px;text-align:center;overflow:hidden}
.trusted-label{font-size:.8rem;font-weight:600;color:#94a3b8;text-transform:uppercase;letter-spacing:.1em;margin-bottom:28px}
.marquee-wrapper{position:relative;width:100%;overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.marquee-track{display:flex;gap:48px;width:max-content;animation:marquee 30s linear infinite}
.marquee-track span{flex-shrink:0;font-size:1rem;font-weight:600;color:#94a3b8;white-space:nowrap;padding:8px 0}
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(-33.333%)}}

/* ===== CASE STUDY ===== */
.case-study{padding:80px 24px;background:#fff;border-top:1px solid #f1f5f9;border-bottom:1px solid #f1f5f9}
.case-study-inner{max-width:760px;margin:0 auto}
.case-study-tag{display:inline-block;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:#4f46e5;background:#eef2ff;padding:4px 12px;border-radius:6px;margin-bottom:16px}
.case-study-client{font-size:.9rem;color:#94a3b8;font-weight:500;margin-bottom:12px}
.case-study-inner h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:700;line-height:1.3;margin-bottom:16px;color:#0f172a}
.case-study-body{color:#64748b;font-size:1rem;line-height:1.7;margin-bottom:20px}
.case-study-link{color:#4f46e5;font-weight:600;text-decoration:none;font-size:.95rem;transition:opacity .2s}
.case-study-link:hover{opacity:.8}

/* ===== TESTIMONIAL ===== */
.testimonial{padding:80px 24px;background:#fafaf9}
.testimonial-inner{max-width:720px;margin:0 auto;text-align:center}
.testimonial blockquote{font-size:clamp(1.15rem,2.5vw,1.4rem);font-weight:500;line-height:1.6;color:#1e293b;margin-bottom:32px;font-style:italic}
.testimonial-author{display:inline-flex;align-items:center;gap:14px;text-align:center}
.author-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#c7d2fe,#a5b4fc);flex-shrink:0}
.testimonial-author strong{font-size:.95rem;color:#0f172a}
.testimonial-author span{font-size:.82rem;color:#94a3b8}

/* ===== FINAL CTA ===== */
.final-cta{text-align:center;padding:96px 24px;background:linear-gradient(180deg,#fafaf9 0%,#eef2ff 100%)}
.final-cta h2{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800;line-height:1.2;max-width:620px;margin:0 auto 16px;letter-spacing:-.02em}
.final-cta p{color:#64748b;font-size:1.05rem;margin-bottom:32px}

/* ===== FAQ ===== */
.faq{padding:80px 24px;max-width:760px;margin:0 auto}
.faq h2{font-size:1.6rem;font-weight:700;margin-bottom:36px;text-align:center}
.faq-list{display:flex;flex-direction:column;gap:0}
.faq-item{border-bottom:1px solid #e2e8f0;overflow:hidden}
.faq-item summary{padding:20px 0;font-size:1rem;font-weight:500;color:#1e293b;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;transition:color .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:1.3rem;color:#94a3b8;transition:transform .2s}
.faq-item[open] summary::after{content:'\2212'}
.faq-item summary:hover{color:#4f46e5}
.faq-item p{padding:0 0 20px;color:#64748b;font-size:.95rem;line-height:1.7}

/* ===== FOOTER ===== */
.footer{background:#0f172a;color:#94a3b8;padding:64px 24px 40px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:flex;justify-content:space-between;gap:48px;margin-bottom:48px}
.footer-brand{display:flex;flex-direction:column;gap:8px}
.footer-badge{display:inline-block;font-size:.7rem;font-weight:600;background:rgba(255,255,255,.08);padding:4px 10px;border-radius:6px;color:#94a3b8;width:fit-content}
.footer-brand p{font-size:.82rem}
.footer-cols{display:flex;gap:64px}
.footer-cols h4{color:#e2e8f0;font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;margin-bottom:16px}
.footer-cols a{display:block;font-size:.88rem;color:#94a3b8;text-decoration:none;margin-bottom:10px;transition:color .15s}
.footer-cols a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:32px;text-align:center}
.footer-divider{height:1px;background:rgba(255,255,255,.08);margin:32px 0 24px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-legal{font-size:.8rem;color:#64748b}
.made-with-love{font-size:.8rem;color:#64748b}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:24px;gap:16px;border-bottom:1px solid #e2e8f0;box-shadow:0 8px 24px rgba(0,0,0,.06)}
  .nav-links.active{display:flex}
  .nav-cta{display:none}
  .hamburger{display:flex}
  .demo-full{max-width:100%}
  .hero{padding:130px 24px 60px}
  .hero-trust-row{flex-direction:column;align-items:center;gap:12px}
  .footer-top{flex-direction:column}
  .footer-cols{gap:40px}
}