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

/* Accessibility */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;top:-100px;left:12px;background:var(--blue);color:#fff;padding:8px 16px;border-radius:0 0 var(--r-sm) var(--r-sm);z-index:200;transition:top .2s}
.skip-link:focus{top:0}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}
@media(prefers-color-scheme:dark){
  :root{
    --blue:#3b82f6; --blue-d:#60a5fa; --blue-l:#1e3a5f;
    --gray-50:#0f172a; --gray-100:#1e293b; --gray-300:#334155;
    --gray-500:#94a3b8; --gray-700:#cbd5e1; --gray-900:#f1f5f9;
  }
  body{background:var(--gray-100);color:var(--gray-900)}
  .header{background:rgba(15,23,42,.85)}
  .hero{min-height:100vh;background:linear-gradient(180deg,var(--gray-100) 0%,var(--gray-50) 100%)}
  .features,.pricing,.how,.testimonials{background:var(--gray-100)}
  .feat-card,.plan,.step-card{background:var(--gray-50);border-color:var(--gray-300)}
  .plan--pop{background:linear-gradient(180deg,#1e293b 0%,var(--gray-50) 100%)}
  .carousel__btn{background:var(--gray-50);border-color:var(--gray-300)}
  .modal__box{background:var(--gray-100)}
  .modal__box input{background:var(--gray-50);border-color:var(--gray-300);color:var(--gray-900)}
  .hero__stats span{background:var(--blue-l);color:var(--blue)}
}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:2px}

:root{
  --blue:#2563eb; --blue-d:#1d4ed8; --blue-l:#dbeafe;
  --green:#16a34a; --green-l:#dcfce7;
  --amber:#f59e0b; --amber-l:#fef3c7;
  --gray-900:#0f172a; --gray-700:#334155; --gray-500:#64748b; --gray-300:#cbd5e1; --gray-100:#f1f5f9; --gray-50:#f8fafc;
  --r:12px; --r-sm:8px; --tr:.2s; --tr-slow:.5s; --mw:1120px;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;color:var(--gray-900);background:#fff;line-height:1.6}
img{max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none}
.container{max-width:var(--mw);margin:0 auto;padding:0 24px}
.section__title{font-size:2rem;font-weight:700;text-align:center;margin-bottom:1rem}
.gradient{background:linear-gradient(135deg,var(--blue),#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 22px;font-size:.93rem;font-weight:600;border-radius:var(--r-sm);border:2px solid transparent;cursor:pointer;transition:all var(--tr);font-family:inherit;white-space:nowrap}
.btn--primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn--primary:hover{background:var(--blue-d);border-color:var(--blue-d);transform:translateY(-1px);box-shadow:0 4px 12px rgba(37,99,235,.3)}
.btn--outline{background:transparent;color:var(--blue);border-color:var(--blue)}
.btn--outline:hover{background:var(--blue);color:#fff}
.btn--sm{padding:7px 16px;font-size:.85rem}
.btn--lg{padding:14px 32px;font-size:1.05rem;border-radius:var(--r)}
.btn--download{background:#fff;color:var(--gray-900);box-shadow:0 1px 3px rgba(0,0,0,.1);font-weight:600}
.btn--download:hover{box-shadow:0 4px 12px rgba(0,0,0,.15);transform:translateY(-2px);color:var(--gray-900)}
.btn--full{width:100%}

/* Header */
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--gray-300);transition:box-shadow var(--tr)}
.header.scrolled{box-shadow:0 1px 3px rgba(0,0,0,.08)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:700;color:var(--gray-900)}
.logo:hover{color:var(--gray-900)}
.nav{display:flex;gap:24px}
.nav a{color:var(--gray-500);font-size:.9rem;font-weight:500}
.nav a:hover{color:var(--blue)}

/* Burger menu */
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px;z-index:101}
.burger span{display:block;width:24px;height:2px;background:var(--gray-700);border-radius:2px;transition:all var(--tr)}
.burger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

@media(max-width:800px){
  .burger{display:flex}
  .nav{position:fixed;top:60px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:16px;border-bottom:1px solid var(--gray-300);transform:translateY(-120%);transition:transform var(--tr);z-index:99;box-shadow:0 4px 12px rgba(0,0,0,.08)}
  .nav.open{transform:translateY(0)}
  .nav a{font-size:1.05rem;padding:8px 0}
}

/* Hero — side by side */
.hero{min-height:100vh;padding:100px 0 40px;background:linear-gradient(180deg,#eff6ff 0%,#fff 100%)}
.hero__inner{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.hero__text h1{font-size:2.8rem;font-weight:800;line-height:1.2;margin-bottom:.5rem}
.hero__text p{font-size:1.1rem;color:var(--gray-500);margin-bottom:1rem;line-height:1.7;max-width:480px}
.hero__btns{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:0}
.hero__stats{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:1.5rem}
.hero__stats span{background:var(--blue-l);color:var(--blue);padding:4px 12px;border-radius:100px;font-size:.82rem;font-weight:600}
.hero__img{display:flex;justify-content:center}
.hero__img img{max-width:100%;filter:drop-shadow(0 20px 40px rgba(37,99,235,.15))}

.features{padding:50px 0;background:var(--gray-50)}
.carousel{position:relative;max-width:780px;margin:0 auto;overflow:hidden}
.carousel__track{display:flex;transition:transform .45s cubic-bezier(.25,.8,.25,1);will-change:transform}
.carousel__track.dragging{transition:none}
.feat-card{flex:0 0 100%;padding:16px 24px;border-radius:var(--r);transition:all var(--tr-slow);cursor:default}
.feat-card:hover{background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.05);transform:translateY(-2px)}
.feat-card__icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:var(--r);background:var(--blue-l);margin-bottom:8px}
.feat-card h3{font-size:1.15rem;font-weight:700;margin-bottom:6px}
.feat-card p{color:var(--gray-500);font-size:.9rem;line-height:1.55;margin-bottom:10px}
.feat-card__tags{display:flex;flex-wrap:wrap;gap:8px}
.feat-card__tags span{padding:4px 10px;border-radius:100px;background:var(--blue-l);color:var(--blue);font-size:.78rem;font-weight:600}

/* Carousel navigation */
.carousel__nav{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:12px}
.carousel__btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--gray-300);background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--tr);color:var(--gray-500)}
.carousel__btn:hover{border-color:var(--blue);color:var(--blue);box-shadow:0 2px 8px rgba(37,99,235,.15)}
.carousel__btn:disabled{opacity:.3;pointer-events:none}
.carousel__dots{display:flex;gap:8px}
.carousel__dot{width:10px;height:10px;border-radius:50%;background:var(--gray-300);border:none;cursor:pointer;transition:all var(--tr);padding:0}
.carousel__dot.active{background:var(--blue);width:28px;border-radius:5px}

.how{padding:50px 0}
.step-card{flex:0 0 100%;padding:20px 24px;text-align:center}
.step-card span{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font-size:1.1rem;font-weight:700;margin:0 auto 10px}
.step-card h3{font-size:1.2rem;font-weight:700;margin-bottom:6px}
.step-card p{color:var(--gray-500);font-size:.92rem;line-height:1.5;max-width:400px;margin:0 auto}

.pricing{padding:50px 0;background:var(--gray-50)}
.pricing__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;align-items:stretch}
.plan{position:relative;padding:24px 20px;border-radius:var(--r);background:#fff;border:1px solid var(--gray-300);display:flex;flex-direction:column;transition:all var(--tr-slow);overflow:visible}
.plan:hover{box-shadow:0 12px 32px rgba(0,0,0,.08);transform:translateY(-4px);border-color:var(--blue)}
.plan--pop{border-color:var(--blue);box-shadow:0 4px 16px rgba(37,99,235,.15);background:linear-gradient(180deg,#f8faff 0%,#fff 100%)}
.plan__badge{position:absolute;top:0;left:50%;transform:translate(-50%,-50%);background:var(--blue);color:#fff;padding:2px 12px;border-radius:100px;font-size:.75rem;font-weight:600;z-index:1;white-space:nowrap}
.plan h3{font-size:1.1rem;font-weight:700;margin-bottom:2px}
.plan__cars{color:var(--gray-500);font-size:.8rem;margin-bottom:10px}
.plan__price{font-size:1.8rem;font-weight:800;margin-bottom:12px}
.plan__price span{font-size:.85rem;font-weight:400;color:var(--gray-500)}
.plan ul{list-style:none;margin-bottom:16px;flex:1}
.plan ul li{padding:4px 0;font-size:.87rem;border-bottom:1px solid var(--gray-100)}
.plan ul li::before{content:'\2713';color:#22c55e;margin-right:8px;font-weight:700}
.plan__trial{text-align:center;color:#22c55e;font-size:.82rem;font-weight:600;margin:-8px 0 12px}

/* Testimonials */
.testimonials{padding:50px 0;background:var(--gray-50)}
.testimonials__card{max-width:600px;margin:0 auto;background:#fff;padding:24px;border-radius:var(--r);box-shadow:0 4px 12px rgba(0,0,0,.04)}
.testimonials__quote{font-size:1.1rem;color:var(--gray-700);line-height:1.5;font-style:italic}
.testimonials__author{margin-top:12px;font-weight:600;color:var(--gray-900)}

/* Scroll to top */
.scroll-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:50%;background:var(--blue);color:#fff;border:none;cursor:pointer;box-shadow:0 4px 12px rgba(37,99,235,.3);display:none;align-items:center;justify-content:center;z-index:90;font-size:1.3rem;transition:all var(--tr)}
.scroll-top:hover{background:var(--blue-d);transform:translateY(-2px)}
.scroll-top.visible{display:flex}

.download{padding:50px 0;background:var(--gray-900)}
.download__inner{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.download__img{display:flex;justify-content:center}
.download__img img{max-height:280px}
.download__text h2{color:#fff;font-size:1.6rem;margin-bottom:8px}
.download__text p{color:rgba(255,255,255,.6);font-size:.95rem;margin-bottom:14px;line-height:1.5}
.download__ver{color:rgba(255,255,255,.35);font-size:.8rem;margin-top:12px}

.contact{padding:50px 0;background:var(--gray-900)}
.contact__inner{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.contact h2{color:#fff;font-size:1.8rem;margin-bottom:8px}
.contact p{color:rgba(255,255,255,.6);margin-bottom:12px;line-height:1.6}
.contact__links{display:flex;flex-direction:column;gap:6px}
.contact__links a,.contact__links span{color:rgba(255,255,255,.6);font-size:.9rem}
.contact__links a:hover{color:#fff}
.contact__tag{color:rgba(255,255,255,.5);font-size:.85rem;margin-top:4px}
.contact__form{display:flex;flex-direction:column;gap:10px}
.contact__form input,.contact__form textarea{width:100%;padding:10px 14px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:#fff;font-size:.9rem;font-family:inherit;transition:border var(--tr)}
.contact__form input:focus,.contact__form textarea:focus{outline:none;border-color:var(--blue)}
.contact__form input::placeholder,.contact__form textarea::placeholder{color:rgba(255,255,255,.3)}
.contact__form textarea{resize:none;max-height:150px}

/* Footer */
.footer{padding:24px 0;background:#0a0f1a}
.footer__inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.footer span{color:rgba(255,255,255,.35);font-size:.85rem}
.footer nav{display:flex;gap:20px}
.footer nav a{color:rgba(255,255,255,.35);font-size:.85rem;transition:color var(--tr)}
.footer nav a:hover{color:#fff}

/* Modal */
.modal{display:none;position:fixed;inset:0;z-index:200}
.modal.active{display:flex;align-items:center;justify-content:center}
.modal__bg{position:absolute;inset:0;background:rgba(0,0,0,.5);backdrop-filter:blur(4px)}
.modal__box{position:relative;background:#fff;border-radius:var(--r);padding:32px 28px;width:100%;max-width:400px;box-shadow:0 16px 40px rgba(0,0,0,.15);z-index:1;animation:in .25s ease}
@keyframes in{from{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal__x{position:absolute;top:8px;right:14px;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--gray-500);line-height:1}
.modal__box h3{font-size:1.3rem;font-weight:700;margin-bottom:2px}
.modal__box > p{color:var(--gray-500);font-size:.88rem;margin-bottom:20px}
.modal__box form{display:flex;flex-direction:column;gap:6px}
.modal__box label{font-size:.84rem;font-weight:600;margin-top:6px}
.modal__box input{padding:10px 14px;border-radius:var(--r-sm);border:1px solid var(--gray-300);font-size:.93rem;font-family:inherit}
.modal__box input:focus{outline:none;border-color:var(--blue)}
.modal__box form .btn{margin-top:12px}
.modal__switch{text-align:center;margin-top:14px;font-size:.88rem;color:var(--gray-500)}
.modal__switch a{color:var(--blue);cursor:pointer}
.modal__msg{text-align:center;margin-top:10px;font-size:.84rem;min-height:20px}
.modal__msg.error{color:#ef4444}
.modal__msg.success{color:#22c55e}

/* Responsive */
@media(max-width:900px){
  .hero__inner,.download__inner{grid-template-columns:1fr;text-align:center}
  .hero__text p{max-width:100%}
  .hero__btns{justify-content:center}
  .hero__img{order:-1}
  .hero__img img{max-width:320px}
  .download__img img{max-height:260px}
  .hero h1{font-size:2rem}
}
@media(max-width:800px){
  .nav{display:none}
  .pricing__grid{grid-template-columns:1fr;max-width:380px;margin:0 auto}
  .contact__inner{grid-template-columns:1fr}
}
@media(max-width:500px){
  .hero{padding:110px 0 40px}
  .hero h1{font-size:1.6rem}
  .section__title{font-size:1.5rem}
}