*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f0f9ff;--primary:#0ea5e9;--primary-dark:#0284c7;--navy:#1e3a5f;--text:#0f172a;--text-muted:#64748b;--white:#ffffff;--border:#e0f2fe;--r-sm:8px;--r-md:12px;--r-lg:20px;--shadow:0 4px 20px rgba(14,165,233,0.10);--shadow-sm:0 1px 4px rgba(14,165,233,0.08)}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;font-size:16px}.container{max-width:1140px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:var(--r-md);font-weight:600;font-size:1rem;cursor:pointer;text-decoration:none;transition:all 0.2s;border:2px solid transparent;white-space:nowrap}.btn--primary{background:var(--primary);color:var(--white);border-color:var(--primary)}.btn--primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px rgba(14,165,233,0.3)}.btn--outline{background:transparent;color:var(--primary);border-color:var(--primary)}.btn--outline:hover{background:var(--primary);color:var(--white)}.btn--lg{padding:16px 36px;font-size:1.125rem;border-radius:var(--r-lg)}.nav{position:sticky;top:0;z-index:100;background:rgba(240,249,255,0.95);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color 0.2s,box-shadow 0.2s}.nav--scrolled{border-bottom-color:var(--border);box-shadow:0 1px 8px rgba(14,165,233,0.08)}.nav__inner{display:flex;align-items:center;height:68px;gap:24px}.nav__logo{display:flex;align-items:center;gap:8px;font-size:1.2rem;font-weight:800;color:var(--navy);text-decoration:none;flex-shrink:0}.nav__logo svg{color:var(--primary)}.nav__links{display:flex;gap:20px;margin-left:auto}.nav__link{color:var(--text-muted);text-decoration:none;font-size:0.9rem;font-weight:500;transition:color 0.2s}.nav__link:hover{color:var(--primary)}.nav__actions{display:flex;align-items:center;gap:12px}.lang-select{appearance:none;-webkit-appearance:none;background:transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%230ea5e9' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 8px center;border:1px solid var(--primary);border-radius:var(--r-sm);padding:6px 28px 6px 10px;font-size:0.8rem;color:var(--text-muted);cursor:pointer;font-family:inherit}.lang-select:focus{outline:none;border-color:var(--primary-dark)}.nav__link--profile{color:var(--primary);font-weight:600}.nav__link--profile:hover{color:var(--primary-dark)}.nav__hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;margin-left:auto}.nav__hamburger span{display:block;width:22px;height:2px;background:var(--navy);border-radius:2px;transition:all 0.2s}.nav__mobile-menu{display:none;flex-direction:column;gap:0;background:var(--white);border-top:1px solid var(--border);padding:16px 0}.nav__mobile-menu--open{display:flex}.nav__mobile-menu .nav__link{padding:12px 24px;font-size:1rem}.nav__mobile-menu .btn{margin:12px 24px 4px}@media (max-width:768px){.nav__links{display:none}.nav__actions .btn{display:none}.nav__actions .lang-select{display:none}.nav__hamburger{display:flex}}.section{padding:96px 0}.section__header{text-align:center;margin-bottom:64px}.section__title{font-size:2.25rem;font-weight:800;color:var(--navy);margin-bottom:16px;line-height:1.2}.section__subtitle{font-size:1.05rem;color:var(--text-muted);max-width:600px;margin:0 auto;line-height:1.7}.hero{padding:80px 0 100px;background:linear-gradient(135deg,#dbeafe 0%,#e0f2fe 30%,#f0f9ff 70%,#ffffff 100%);overflow:hidden}.hero__inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.hero__badge{display:inline-flex;align-items:center;gap:8px;background:rgba(14,165,233,0.12);color:var(--primary-dark);border:1px solid rgba(14,165,233,0.2);border-radius:999px;padding:6px 16px;font-size:0.8rem;font-weight:600;margin-bottom:28px;letter-spacing:0.02em}.hero__badge svg{flex-shrink:0}.hero__title{font-size:3rem;font-weight:800;line-height:1.1;color:var(--navy);margin-bottom:24px}.hero__title em{font-style:normal;color:var(--primary)}.hero__subtitle{font-size:1.1rem;color:var(--text-muted);line-height:1.75;margin-bottom:40px;max-width:520px}.hero__cta{margin-bottom:20px}.hero__trust{font-size:0.78rem;color:var(--text-muted);letter-spacing:0.02em}.hero__trust::before{content:"🔒 "}.hero__visual{display:flex;align-items:center;justify-content:center}.hero-illustration{position:relative;width:320px;height:320px}.hero-ring{position:absolute;inset:0;border-radius:50%;border:1px dashed rgba(14,165,233,0.25);animation:spin-slow 20s linear infinite}@keyframes spin-slow{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}.hero-envelope{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:140px;height:100px;background:var(--white);border:2px solid var(--border);border-radius:var(--r-md);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center}.hero-envelope svg{color:var(--primary)}.hero-fragment{position:absolute;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);font-weight:800;font-size:0.95rem;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px rgba(14,165,233,0.35);animation:fragment-float 3s ease-in-out infinite}.hero-fragment:nth-child(2){top:20px;left:50%;margin-left:-22px;animation-delay:0s}.hero-fragment:nth-child(3){top:60px;right:16px;animation-delay:0.6s}.hero-fragment:nth-child(4){bottom:30px;right:30px;animation-delay:1.2s}.hero-fragment:nth-child(5){bottom:30px;left:30px;animation-delay:1.8s}.hero-fragment:nth-child(6){top:60px;left:16px;animation-delay:2.4s}@keyframes fragment-float{0%,100%{transform:translateY(0px)}50%{transform:translateY(-8px)}}@media (max-width:900px){.hero__inner{grid-template-columns:1fr;text-align:center}.hero__visual{display:none}.hero__title{font-size:2.2rem}.hero__subtitle{margin-left:auto;margin-right:auto}}.shamir{background:var(--white)}.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin-bottom:64px;position:relative}.steps::before{content:"";position:absolute;top:28px;left:calc(100% / 12);right:calc(100% / 12);height:2px;background:linear-gradient(90deg,var(--primary),#38bdf8);z-index:0}.step{display:flex;flex-direction:column;align-items:center;text-align:center;padding:0 8px;position:relative;z-index:1}.step__icon{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:16px;box-shadow:0 2px 12px rgba(14,165,233,0.3);border:3px solid var(--white)}.step__label{font-weight:700;font-size:0.85rem;color:var(--navy);margin-bottom:8px}.step__desc{font-size:0.75rem;color:var(--text-muted);line-height:1.5}@media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr);gap:32px}.steps::before{display:none}}@media (max-width:480px){.steps{grid-template-columns:1fr}}.shamir-viz{background:linear-gradient(135deg,#dbeafe,#e0f2fe,#f0f9ff);border-radius:var(--r-lg);padding:56px 48px;text-align:center;border:1px solid var(--border)}.shamir-viz__title{font-size:1.6rem;font-weight:800;color:var(--navy);margin-bottom:8px}.shamir-viz__subtitle{color:var(--text-muted);margin-bottom:48px;font-size:0.95rem}.shamir-diagram{display:flex;align-items:center;justify-content:center;gap:32px;flex-wrap:wrap}.shamir-people{display:flex;flex-direction:column;gap:12px}.shamir-person{display:flex;align-items:center;gap:12px;background:var(--white);border-radius:var(--r-md);padding:10px 16px;border:2px solid var(--border);transition:all 0.3s;min-width:180px}.shamir-person--active{border-color:var(--primary);background:rgba(14,165,233,0.04);box-shadow:0 2px 8px rgba(14,165,233,0.15)}.shamir-person__avatar{width:40px;height:40px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0;position:relative}.shamir-person--active .shamir-person__avatar{background:rgba(14,165,233,0.15)}.shamir-person__key{position:absolute;bottom:-4px;right:-4px;font-size:0.65rem;width:18px;height:18px;background:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--border)}.shamir-person--dim{opacity:0.45}.shamir-person__info{text-align:left;flex:1}.shamir-person__label{font-size:0.8rem;font-weight:600;color:var(--navy)}.shamir-person__status{font-size:0.7rem;color:var(--text-muted)}.shamir-person--active .shamir-person__status{color:var(--primary);font-weight:500}.shamir-connector{display:flex;flex-direction:column;align-items:center;gap:0}.shamir-connector__lines{display:flex;flex-direction:column;align-items:center;gap:18px}.shamir-connector__line{width:60px;height:2px;background:var(--border);border-radius:2px}.shamir-connector__line--active{background:var(--primary)}.shamir-connector__line--dim{opacity:0.3}.shamir-connector__badge{background:var(--primary);color:var(--white);font-weight:800;font-size:1.1rem;padding:8px 20px;border-radius:999px;margin:12px 0;box-shadow:0 2px 10px rgba(14,165,233,0.35);white-space:nowrap}.shamir-output{display:flex;flex-direction:column;align-items:center;gap:12px}.shamir-unlock,.shamir-destruct{background:var(--white);border-radius:var(--r-md);padding:20px 28px;text-align:center;box-shadow:var(--shadow);min-width:140px}.shamir-unlock{border:1px solid var(--border)}.shamir-destruct{border:1px solid #fde68a;background:#fffbeb}.shamir-unlock__icon,.shamir-destruct__icon{font-size:2.2rem;margin-bottom:8px}.shamir-unlock__label,.shamir-destruct__label{font-size:0.75rem;color:var(--text-muted);line-height:1.4}.shamir-arrow{font-size:1.5rem;color:var(--primary)}@media (max-width:768px){.shamir-diagram{flex-direction:column}.shamir-connector{flex-direction:row}.shamir-connector__lines{flex-direction:row;gap:12px}.shamir-connector__line{width:2px;height:40px}.shamir-viz{padding:32px 20px}}.features{background:var(--bg)}.features__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.feature-card{background:var(--white);border-radius:var(--r-lg);padding:40px 32px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform 0.25s,box-shadow 0.25s}.feature-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(14,165,233,0.14)}.feature-card__icon{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,rgba(14,165,233,0.12),rgba(14,165,233,0.04));color:var(--primary);display:flex;align-items:center;justify-content:center;margin:0 auto 24px}.feature-card__title{font-size:1.2rem;font-weight:700;color:var(--navy);margin-bottom:12px}.feature-card__desc{color:var(--text-muted);line-height:1.7;font-size:0.95rem}@media (max-width:768px){.features__grid{grid-template-columns:1fr}}.stats{background:var(--white)}.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.stat-card{background:var(--bg);border-radius:var(--r-lg);padding:32px 20px;text-align:center;border:1px solid var(--border)}.stat-card__value{font-size:2.5rem;font-weight:800;color:var(--primary-dark);line-height:1.1;margin-bottom:8px}.stat-card__label{color:var(--text-muted);font-size:0.95rem;font-weight:500}@media (max-width:768px){.stats__grid{grid-template-columns:repeat(2,1fr)}}.reviews{background:var(--white)}.reviews__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.review-card{background:var(--bg);border-radius:var(--r-lg);padding:32px;border:1px solid var(--border);display:flex;flex-direction:column}.review-card__stars{color:#f59e0b;font-size:1rem;margin-bottom:16px;letter-spacing:3px}.review-card__text{color:var(--text);line-height:1.7;margin-bottom:24px;font-style:italic;flex:1}.review-card__author{display:flex;align-items:center;gap:12px}.review-card__avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.85rem;flex-shrink:0}.review-card__name{font-weight:700;color:var(--navy);font-size:0.9rem}.review-card__role{font-size:0.78rem;color:var(--text-muted)}@media (max-width:768px){.reviews__grid{grid-template-columns:1fr}}.reviews__load-more{text-align:center;margin-top:32px}.reviews__empty{color:var(--text-muted);text-align:center;grid-column:1 / -1}.reviews-modal{position:fixed;inset:0;background:rgba(15,23,42,0.6);display:flex;align-items:center;justify-content:center;padding:24px;z-index:1000}.reviews-modal[hidden]{display:none}.reviews-modal__panel{background:var(--white);border-radius:16px;width:100%;max-width:640px;max-height:85vh;display:flex;flex-direction:column;padding:24px}.reviews-modal__header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.reviews-modal__close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-muted);line-height:1}.reviews-modal__list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:16px;padding-right:4px}.reviews-modal__list .review-card{box-shadow:none;border:1px solid #e2e8f0}.reviews-modal__status{text-align:center;color:var(--text-muted);padding:12px 0;font-size:0.875rem}.pricing{background:var(--bg)}.pricing__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:720px;margin:0 auto 24px}.pricing-card{background:var(--white);border-radius:var(--r-lg);padding:40px 28px;text-align:center;box-shadow:var(--shadow-sm);border:2px solid var(--border);position:relative;transition:transform 0.2s,box-shadow 0.2s}.pricing-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.pricing-card--popular{border-color:var(--primary);box-shadow:0 4px 24px rgba(14,165,233,0.18)}.pricing-card__badge{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:var(--primary);color:var(--white);font-size:0.72rem;font-weight:700;padding:4px 18px;border-radius:999px;white-space:nowrap;letter-spacing:0.05em;text-transform:uppercase}.pricing-card__duration{font-size:0.9rem;color:var(--text-muted);margin-bottom:12px;font-weight:500;text-transform:uppercase;letter-spacing:0.05em}.pricing-card__price{font-size:3.5rem;font-weight:800;color:var(--navy);margin-bottom:4px;line-height:1}.pricing-card__price-suffix{font-size:1rem;font-weight:500;color:var(--text-muted)}.pricing-card__price-period{font-size:0.8rem;color:var(--text-muted);margin-bottom:16px}.pricing-card__desc{font-size:0.85rem;color:var(--text-muted);margin-bottom:32px;line-height:1.5}.pricing__free-note{text-align:center;color:var(--text-muted);font-size:0.9rem}@media (max-width:768px){.pricing__grid{grid-template-columns:1fr}}.contact{background:var(--white)}.contact__grid{display:grid;grid-template-columns:1fr 380px;gap:60px;align-items:start}.form-group{margin-bottom:20px}.form-label{display:block;font-size:0.85rem;font-weight:600;color:var(--navy);margin-bottom:8px}.form-input{width:100%;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--r-sm);font-size:0.95rem;color:var(--text);background:var(--bg);transition:border-color 0.2s,box-shadow 0.2s;font-family:inherit}.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,165,233,0.1);background:var(--white)}.form-textarea{resize:vertical;min-height:130px}.contact__info-card{background:linear-gradient(145deg,var(--navy),#1d4ed8);color:var(--white);border-radius:var(--r-lg);padding:40px 36px}.contact__info-card h3{font-size:1.2rem;margin-bottom:16px}.contact__info-card p{opacity:0.8;font-size:0.9rem;margin-bottom:24px;line-height:1.6}.contact__email{display:inline-block;color:var(--white);font-size:1rem;font-weight:600;text-decoration:none;border-bottom:2px solid rgba(255,255,255,0.3);transition:border-color 0.2s;word-break:break-all}.contact__email:hover{border-bottom-color:var(--white)}@media (max-width:900px){.contact__grid{grid-template-columns:1fr}}.footer{background:var(--navy);color:#94a3b8;padding:64px 0 32px}.footer__inner{display:flex;flex-direction:column;gap:48px}.footer__top{display:grid;grid-template-columns:1fr auto;gap:48px;align-items:start}.footer__logo{display:inline-flex;align-items:center;gap:8px;font-size:1.1rem;font-weight:800;color:var(--white);text-decoration:none;margin-bottom:16px}.footer__logo svg{color:var(--primary)}.footer__tagline{font-size:0.875rem;line-height:1.6;max-width:340px}.footer__links{display:flex;gap:28px;flex-wrap:wrap}.footer__link{color:#94a3b8;text-decoration:none;font-size:0.875rem;transition:color 0.2s}.footer__link:hover{color:var(--white)}.footer__bottom{display:flex;justify-content:space-between;align-items:center;padding-top:28px;border-top:1px solid rgba(255,255,255,0.08);font-size:0.825rem;flex-wrap:wrap;gap:16px}.footer .lang-select{background-color:transparent;border-color:rgba(255,255,255,0.15);color:#94a3b8}.footer .lang-select:focus{border-color:var(--primary)}@media (max-width:768px){.footer__top{grid-template-columns:1fr}.footer__bottom{flex-direction:column;align-items:flex-start}}html{-webkit-text-size-adjust:100%}.hero-illustration{max-width:100%}@supports (padding:max(0px)){.container{padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right))}}@media (max-width:360px){.container{padding-left:16px;padding-right:16px}.btn--lg{padding:14px 22px;font-size:1rem}}@media (max-width:480px){.hero__title{font-size:1.85rem}.hero__subtitle{font-size:1rem}.hero__title,.hero__subtitle{overflow-wrap:break-word}.hero__cta{white-space:normal;max-width:100%}}