/* ===== RESET & BASE ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
    --blue: #3b82f6;
    --blue-dark: #2563eb;
    --cyan: #06b6d4;
    --green: #10b981;
    --purple: #8b5cf6;
    --red: #ef4444;
    --bg: #f8fafc;
    --bg-white: #ffffff;
    --bg-section: #f1f5f9;
    --text: #1e293b;
    --text-light: #64748b;
    --text-lighter: #94a3b8;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --shadow-md: 0 4px 6px rgba(0,0,0,.05), 0 2px 4px rgba(0,0,0,.04);
    --shadow-lg: 0 10px 25px rgba(0,0,0,.07), 0 4px 10px rgba(0,0,0,.04);
    --shadow-xl: 0 20px 50px rgba(59,130,246,.15);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-full: 9999px;
    --transition: .3s cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{cursor:pointer;border:none;background:none;font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== HEADER ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.85);backdrop-filter:blur(20px);border-bottom:1px solid transparent;transition:var(--transition)}
.header.scrolled{border-bottom-color:var(--border);box-shadow:var(--shadow)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.25rem}
.logo__icon{font-size:1.5rem}
.nav{display:flex;gap:32px}
.nav a{font-size:.9rem;font-weight:500;color:var(--text-light);transition:var(--transition)}
.nav a:hover{color:var(--blue)}
.burger{display:none;flex-direction:column;gap:5px;width:28px}
.burger span{height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}

/* ===== BUTTON ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:600;font-size:.95rem;border-radius:var(--radius-full);transition:var(--transition);border:none;cursor:pointer;white-space:nowrap}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(59,130,246,.35)}
.btn:active{transform:translateY(0)}
.btn--sm{padding:8px 20px;font-size:.85rem}
.btn--lg{padding:16px 36px;font-size:1.05rem}
.btn--white{background:#fff;color:var(--blue)}
.btn--white:hover{box-shadow:0 8px 25px rgba(255,255,255,.35)}

/* ===== MOBILE MENU ===== */
.mobile-menu{position:fixed;top:72px;left:0;right:0;background:#fff;padding:24px;display:none;flex-direction:column;gap:16px;z-index:99;border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg)}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:1rem;font-weight:500;color:var(--text);padding:8px 0}

/* ===== HERO ===== */
.hero{padding:140px 0 80px;position:relative;overflow:hidden}
.hero__bg{position:absolute;inset:0;background:radial-gradient(ellipse at 70% 20%,rgba(59,130,246,.08) 0%,transparent 60%),radial-gradient(ellipse at 30% 80%,rgba(6,182,212,.06) 0%,transparent 50%);pointer-events:none;z-index:0}
.hero__inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero__badge{display:inline-block;padding:6px 16px;background:linear-gradient(135deg,rgba(59,130,246,.1),rgba(6,182,212,.1));color:var(--blue);font-size:.85rem;font-weight:600;border-radius:var(--radius-full);margin-bottom:20px}
.hero__title{font-size:3.5rem;font-weight:800;line-height:1.1;letter-spacing:-.02em;margin-bottom:20px}
.gradient-text{background:linear-gradient(135deg,var(--blue),var(--cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero__desc{font-size:1.15rem;color:var(--text-light);max-width:480px;margin-bottom:32px;line-height:1.7}
.hero__actions{display:flex;flex-direction:column;gap:12px;margin-bottom:40px}
.hero__meta{font-size:.8rem;color:var(--text-lighter);font-weight:500}

/* Hero Stats */
.hero__stats{display:flex;gap:40px}
.stat{display:flex;flex-direction:column}
.stat__num{font-size:1.8rem;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums}
.stat__label{font-size:.8rem;color:var(--text-lighter);font-weight:500;margin-top:2px}

/* ===== PHONE MOCKUP ===== */
.hero__visual{position:relative;display:flex;justify-content:center}
.phone-mockup{width:280px;height:560px;background:#1a1a2e;border-radius:40px;padding:12px;box-shadow:0 30px 80px rgba(0,0,0,.15),0 0 0 1px rgba(255,255,255,.1);position:relative}
.phone-mockup::before{content:'';position:absolute;top:16px;left:50%;transform:translateX(-50%);width:80px;height:24px;background:#0a0a1a;border-radius:12px;z-index:5}
.phone-screen{width:100%;height:100%;background:linear-gradient(180deg,#f0f4ff 0%,#e8eef8 100%);border-radius:30px;overflow:hidden;padding:40px 16px 16px}

/* App UI inside phone */
.app-ui{height:100%;display:flex;flex-direction:column;align-items:center;gap:16px}
.app-ui__header{text-align:center;padding:8px 0}
.app-ui__circle-wrap{position:relative;width:100px;height:100px;margin:0 auto 8px}
.app-ui__circle{width:100%;height:100%}
.app-ui__percent{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.app-ui__num{font-size:1.8rem;font-weight:800;color:var(--blue)}
.app-ui__pct{font-size:.9rem;font-weight:600;color:var(--blue)}
.app-ui__status{font-size:.75rem;font-weight:600;color:var(--text-light)}

.app-ui__items{width:100%;display:flex;flex-direction:column;gap:8px}
.app-ui__item{display:flex;align-items:center;gap:10px;background:#fff;border-radius:12px;padding:10px 12px;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.app-ui__item-icon{font-size:1.2rem}
.app-ui__item-info{display:flex;flex-direction:column;flex:1}
.app-ui__item-info span:first-child{font-size:.72rem;font-weight:600;color:var(--text)}
.app-ui__item-size{font-size:.65rem;color:var(--red);font-weight:700}
.app-ui__btn{width:100%;padding:12px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:700;font-size:.85rem;border-radius:14px;border:none;cursor:pointer;margin-top:auto;letter-spacing:.5px;transition:var(--transition)}
.app-ui__btn:hover{transform:scale(1.02)}
.app-ui__btn.cleaning{animation:pulse 1s infinite}

/* Floating badges */
.floating-badge{position:absolute;padding:10px 18px;background:#fff;border-radius:var(--radius-full);font-size:.82rem;font-weight:600;box-shadow:var(--shadow-lg);white-space:nowrap;animation:float 3s ease-in-out infinite}
.fb-1{top:60px;right:-20px;animation-delay:0s}
.fb-2{bottom:120px;left:-30px;animation-delay:1s}
.fb-3{bottom:40px;right:-10px;animation-delay:2s}

@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.7}}

/* ===== SECTIONS COMMON ===== */
.section-header{text-align:center;margin-bottom:56px}
.section-badge{display:inline-block;padding:6px 16px;background:linear-gradient(135deg,rgba(59,130,246,.1),rgba(6,182,212,.1));color:var(--blue);font-size:.82rem;font-weight:600;border-radius:var(--radius-full);margin-bottom:16px}
.section-title{font-size:2.5rem;font-weight:800;letter-spacing:-.02em;line-height:1.2}
.section-desc{font-size:1.05rem;color:var(--text-light);margin-top:12px}

/* ===== FEATURES ===== */
.features{padding:100px 0;background:var(--bg-white)}
.features__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;transition:var(--transition);position:relative;overflow:hidden}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.feature-card__icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.fc-blue{background:rgba(59,130,246,.1);color:var(--blue)}
.fc-cyan{background:rgba(6,182,212,.1);color:var(--cyan)}
.fc-green{background:rgba(16,185,129,.1);color:var(--green)}
.fc-purple{background:rgba(139,92,246,.1);color:var(--purple)}
.feature-card__title{font-size:1.15rem;font-weight:700;margin-bottom:10px}
.feature-card__desc{font-size:.9rem;color:var(--text-light);line-height:1.6}
.feature-card__tag{display:inline-block;margin-top:16px;padding:4px 12px;background:rgba(59,130,246,.1);color:var(--blue);font-size:.75rem;font-weight:600;border-radius:var(--radius-full)}
.tag--cyan{background:rgba(6,182,212,.1);color:var(--cyan)}
.tag--green{background:rgba(16,185,129,.1);color:var(--green)}
.tag--purple{background:rgba(139,92,246,.1);color:var(--purple)}

/* ===== HOW IT WORKS ===== */
.how{padding:100px 0}
.how__steps{display:flex;align-items:flex-start;justify-content:center;gap:0}
.step{text-align:center;flex:1;max-width:300px;padding:0 20px}
.step__num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:700;font-size:.9rem;border-radius:50%;margin-bottom:16px}
.step__icon{font-size:2.5rem;margin-bottom:12px}
.step__title{font-size:1.1rem;font-weight:700;margin-bottom:8px}
.step__desc{font-size:.9rem;color:var(--text-light);line-height:1.6}
.step__line{width:80px;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan));margin-top:48px;flex-shrink:0;border-radius:2px}

/* ===== COMPARE ===== */
.compare{padding:100px 0;background:var(--bg-white)}
.compare__grid{display:grid;grid-template-columns:1fr auto 1fr;gap:32px;align-items:center}
.compare__card{background:var(--bg);border-radius:var(--radius);padding:32px;border:1px solid var(--border)}
.compare__card--before{border-color:rgba(239,68,68,.2)}
.compare__card--after{border-color:rgba(59,130,246,.2);box-shadow:var(--shadow-xl)}
.compare__label{font-size:1.1rem;font-weight:700;margin-bottom:24px}
.compare__list{list-style:none;display:flex;flex-direction:column;gap:18px}
.compare__list li{display:grid;grid-template-columns:120px 1fr 60px;align-items:center;gap:12px;font-size:.85rem;font-weight:500}
.bar-wrap{height:8px;background:#e8eef4;border-radius:4px;overflow:hidden}
.bar{height:100%;border-radius:4px;transition:width 1.5s cubic-bezier(.4,0,.2,1)}
.bar--red{background:linear-gradient(90deg,var(--red),#f97316)}
.bar--blue{background:linear-gradient(90deg,var(--blue),var(--cyan))}
.bar-val{text-align:right;font-weight:600;font-size:.8rem;color:var(--text-light)}
.compare__vs{font-size:1.5rem;font-weight:800;color:var(--text-lighter);text-align:center}

/* ===== REVIEWS ===== */
.reviews{padding:100px 0}
.reviews__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:var(--transition)}
.review-card:hover{box-shadow:var(--shadow-lg);border-color:transparent}
.review-card__stars{margin-bottom:16px;font-size:1rem;letter-spacing:2px}
.review-card__text{font-size:.95rem;color:var(--text);line-height:1.7;margin-bottom:20px;font-style:italic}
.review-card__author{display:flex;align-items:center;gap:12px}
.review-card__avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}
.review-card__name{font-weight:600;font-size:.9rem}
.review-card__device{font-size:.78rem;color:var(--text-lighter)}

/* ===== DOWNLOAD ===== */
.download{padding:100px 0}
.download__inner{background:linear-gradient(135deg,var(--blue),var(--cyan));border-radius:24px;padding:64px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:40px;position:relative;overflow:hidden}
.download__inner::before{content:'';position:absolute;width:400px;height:400px;background:rgba(255,255,255,.05);border-radius:50%;top:-100px;right:-100px}
.download__title{font-size:2.2rem;font-weight:800;color:#fff;margin-bottom:12px}
.download__desc{font-size:1.05rem;color:rgba(255,255,255,.8);margin-bottom:28px}
.download__info{display:flex;gap:20px;margin-top:16px;font-size:.82rem;color:rgba(255,255,255,.7);font-weight:500}
.download__shield{font-size:6rem;opacity:.9;filter:drop-shadow(0 10px 20px rgba(0,0,0,.2))}

/* ===== FAQ ===== */
.faq{padding:100px 0;background:var(--bg-white)}
.faq__list{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq__item{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;transition:var(--transition)}
.faq__item.active{border-color:var(--blue);box-shadow:0 0 0 3px rgba(59,130,246,.1)}
.faq__q{width:100%;display:flex;justify-content:space-between;align-items:center;padding:18px 24px;font-size:.95rem;font-weight:600;text-align:left;color:var(--text)}
.faq__arrow{transition:var(--transition);color:var(--text-lighter);flex-shrink:0}
.faq__item.active .faq__arrow{transform:rotate(180deg);color:var(--blue)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1),padding .3s}
.faq__a p{padding:0 24px 18px;font-size:.9rem;color:var(--text-light);line-height:1.7}
.faq__item.active .faq__a{max-height:200px}

/* ===== FOOTER ===== */
.footer{padding:40px 0;border-top:1px solid var(--border)}
.footer__inner{display:flex;justify-content:space-between;align-items:center}
.footer__copy{font-size:.82rem;color:var(--text-lighter);margin-top:6px}
.footer__links{display:flex;gap:24px}
.footer__links a{font-size:.85rem;color:var(--text-light);transition:var(--transition)}
.footer__links a:hover{color:var(--blue)}

/* ===== MODAL ===== */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center}
.modal.open{display:flex}
.modal__overlay{position:absolute;inset:0;background:rgba(0,0,0,.4);backdrop-filter:blur(4px)}
.modal__content{position:relative;background:#fff;border-radius:var(--radius);padding:40px;max-width:600px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:var(--shadow-xl)}
.modal__close{position:absolute;top:16px;right:16px;font-size:1.5rem;color:var(--text-lighter);width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:var(--transition)}
.modal__close:hover{background:var(--bg);color:var(--text)}
.modal__body h3{font-size:1.05rem;margin:20px 0 8px;color:var(--text)}
.modal__body p{font-size:.9rem;color:var(--text-light);line-height:1.7}

/* ===== COOKIE ===== */
.cookie-bar{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--border);padding:16px 24px;display:none;align-items:center;justify-content:center;gap:16px;z-index:90;box-shadow:0 -4px 20px rgba(0,0,0,.05)}
.cookie-bar.show{display:flex}
.cookie-bar p{font-size:.85rem;color:var(--text-light)}

/* ===== REVEAL ===== */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
    .features__grid{grid-template-columns:repeat(2,1fr)}
    .hero__title{font-size:2.8rem}
}
@media(max-width:768px){
    .nav{display:none}
    .header .btn{display:none}
    .burger{display:flex}
    .hero__inner{grid-template-columns:1fr;text-align:center}
    .hero__desc{max-width:100%}
    .hero__actions{align-items:center}
    .hero__stats{justify-content:center}
    .hero__visual{margin-top:40px}
    .hero__title{font-size:2.2rem}
    .section-title{font-size:2rem}
    .features__grid{grid-template-columns:1fr}
    .how__steps{flex-direction:column;align-items:center;gap:24px}
    .step__line{width:2px;height:40px;background:linear-gradient(180deg,var(--blue),var(--cyan))}
    .compare__grid{grid-template-columns:1fr;gap:16px}
    .compare__vs{display:none}
    .reviews__grid{grid-template-columns:1fr}
    .download__inner{grid-template-columns:1fr;text-align:center;padding:40px 28px}
    .download__visual{display:none}
    .download__info{justify-content:center;flex-wrap:wrap}
    .footer__inner{flex-direction:column;gap:16px;text-align:center}
    .footer__links{flex-wrap:wrap;justify-content:center}
    .floating-badge{display:none}
}
@media(max-width:480px){
    .hero__title{font-size:1.8rem}
    .hero__stats{flex-direction:column;gap:16px}
    .compare__list li{grid-template-columns:90px 1fr 50px;gap:8px}
}