:root {
    --bg: #f3f7fb;
    --bg-soft: #e7eef6;
    --surface: rgba(255,255,255,0.82);
    --surface-strong: rgba(255,255,255,0.96);
    --card-border: rgba(18,52,86,0.10);
    --text: #163047;
    --muted: #5f7286;
    --accent: #2c8fd6;
    --accent-strong: #7ed4ff;
    --accent-dark: #1f6ba1;
    --success: #2ea56f;
    --danger: #d95d66;
    --shadow: 0 20px 60px rgba(23, 55, 87, 0.12);
    --radius: 24px;
    --radius-sm: 16px;
    --container: 1240px;
    --header-h: 84px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: Inter, Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(44,143,214,.12), transparent 26%),
        radial-gradient(circle at right 18%, rgba(126,212,255,.20), transparent 24%),
        linear-gradient(180deg, #f7fbff 0%, #edf4fb 100%);
    color: var(--text);
    line-height: 1.65;
    font-size: 18px;
}
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; }
button, input { font: inherit; }
button { border: 0; background: none; cursor: pointer; }
.container { width: min(calc(100% - 32px), var(--container)); margin: 0 auto; }
.section { padding: 96px 0; position: relative; }
.section__title {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.1;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 34px;
}
.section:nth-child(even)::before {
    content: '';
    position: absolute;
    inset: 24px 12px;
    border-radius: 32px;
    background: linear-gradient(180deg, rgba(255,255,255,0.75), rgba(255,255,255,0.35));
    border: 1px solid rgba(18,52,86,0.06);
    pointer-events: none;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    padding: 0 28px;
    border-radius: 999px;
    font-weight: 600;
    transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary {
    color: #18101b;
    background: linear-gradient(135deg, var(--accent-strong), var(--accent));
    box-shadow: 0 12px 32px rgba(211,166,200,0.18);
}
.btn--sm { min-height: 48px; padding: 0 22px; }
.btn--outline {
    border: 1px solid rgba(211,166,200,.4);
    color: var(--accent-strong);
}
.btn--outline:hover { background: rgba(211,166,200,.08); }

.grid { display: grid; gap: 20px; }
.grid--2, .grid--3 { grid-template-columns: 1fr; }
@media (min-width: 720px) {
    .grid--2 { grid-template-columns: repeat(2,1fr); }
    .grid--3 { grid-template-columns: repeat(2,1fr); }
}
@media (min-width: 1040px) {
    .grid--3 { grid-template-columns: repeat(3,1fr); }
}

.card,
.case-card,
.review-card,
.error-card {
    background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(248,251,255,.88));
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}
.card {
    padding: 28px;
    min-height: 100%;
}
.card__icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(44,143,214,.10);
    color: var(--accent-dark);
    margin-bottom: 18px;
}
.card__title { font-size: 1.35rem; line-height: 1.2; margin-bottom: 10px; }
.card__text { color: var(--muted); }
.card__price {
    display: inline-flex;
    margin-top: 18px;
    padding: 9px 14px;
    border-radius: 999px;
    background: rgba(44,143,214,.10);
    color: var(--accent-dark);
    font-weight: 600;
}

.header {
    position: sticky;
    top: 0;
    z-index: 50;
    height: var(--header-h);
    background: rgba(255,255,255,0.86);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(18,52,86,0.08);
}
.header__inner {
    height: 100%;
    display: flex;
    align-items: center;
    gap: 18px;
}
.header__logo {
    margin-right: auto;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.header__nav { display: none; gap: 18px; }
.header__nav-link {
    color: var(--muted);
    font-size: .98rem;
}
.header__nav-link:hover { color: var(--text); }
.header__cta { display: none; }
.header__burger { display: inline-flex; flex-direction: column; gap: 4px; padding: 4px; }
.header__burger span {
    width: 24px; height: 2px; border-radius: 2px; background: var(--text);
    transition: .2s ease;
}
.header__burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.header__burger.open span:nth-child(2) { opacity: 0; }
.header__burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.header__nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    left: 16px; right: 16px; top: calc(var(--header-h) - 6px);
    padding: 18px;
    border-radius: 22px;
    background: #ffffff;
    border: 1px solid rgba(18,52,86,.08);
    box-shadow: var(--shadow);
}
@media (min-width: 860px) {
    .header__nav { display: flex; }
    .header__cta { display: inline-flex; }
    .header__burger { display: none; }
    .header__logo { margin-right: 0; }
}

.hero { padding-top: 48px; }
.hero__inner {
    display: grid;
    gap: 28px;
    align-items: center;
}
.hero__content {
    position: relative;
    padding: 36px;
    border-radius: 34px;
    overflow: hidden;
    background: linear-gradient(145deg, rgba(255,255,255,.94), rgba(241,248,255,.90));
    border: 1px solid rgba(18,52,86,.08);
    box-shadow: var(--shadow);
}
.hero__content::after {
    content: '';
    position: absolute;
    width: 240px;
    height: 240px;
    right: -80px;
    top: -90px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(240,191,220,.22), transparent 68%);
    pointer-events: none;
}
.hero__title {
    max-width: 720px;
    font-size: clamp(2.5rem, 6vw, 5rem);
    line-height: .95;
    letter-spacing: -0.05em;
    margin-bottom: 20px;
}
.hero__subtitle {
    max-width: 640px;
    color: var(--muted);
    font-size: 1.06rem;
    margin-bottom: 28px;
}
.hero__image {
    overflow: hidden;
    border-radius: 34px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(18,52,86,.08);
}
.hero__image img {
    height: 520px;
    object-fit: cover;
    filter: saturate(.85) contrast(1.03) brightness(1.02);
}
@media (min-width: 980px) {
    .hero__inner { grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr); }
}

.about__inner {
    display: grid;
    gap: 24px;
    align-items: start;
}
.about__text {
    padding: 30px;
    border-radius: var(--radius);
    background: rgba(255,255,255,.72);
    border: 1px solid rgba(18,52,86,.08);
}
.about__text p + p { margin-top: 14px; }
.about__stats {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 16px;
}
.about__stat {
    padding: 24px;
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(44,143,214,.12), rgba(255,255,255,.92));
    border: 1px solid rgba(18,52,86,.08);
}
.about__stat:last-child:nth-child(odd) { grid-column: 1 / -1; }
.about__stat-value {
    display: block;
    font-size: clamp(1.9rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1;
    margin-bottom: 8px;
}
.about__stat-label { color: var(--muted); }
@media (min-width: 900px) {
    .about__inner { grid-template-columns: 1.15fr .85fr; }
}

.stages__list { list-style: none; display: grid; gap: 16px; }
.stages__item {
    display: grid;
    grid-template-columns: 58px 1fr;
    gap: 16px;
    padding: 24px;
    border-radius: 24px;
    background: rgba(255,255,255,.72);
    border: 1px solid rgba(18,52,86,.08);
}
.stages__num {
    width: 58px; height: 58px; border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, rgba(240,191,220,.95), rgba(157,115,143,.95));
    color: #1b121c;
    font-weight: 700;
    font-size: 1.15rem;
}
.stages__name { font-size: 1.2rem; margin-bottom: 4px; }
.stages__desc { color: var(--muted); }

.case-card { padding: 28px; }
.case-card__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 58px; height: 58px;
    border-radius: 50%;
    margin-bottom: 18px;
    color: var(--accent-strong);
    background: rgba(211,166,200,.1);
    font-size: 1rem;
    font-weight: 700;
}
.case-card__title { font-size: 1.25rem; margin-bottom: 8px; }
.case-card__result { color: var(--accent-strong); margin-bottom: 8px; font-weight: 600; }
.case-card__desc { color: var(--muted); }

.table-wrap {
    overflow-x: auto;
    border-radius: 24px;
    border: 1px solid rgba(18,52,86,.08);
    background: rgba(255,255,255,.03);
}
.price-table, .cmp-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.price-table th, .price-table td,
.cmp-table th, .cmp-table td {
    padding: 16px 18px;
    border-bottom: 1px solid rgba(255,255,255,.06);
    text-align: left;
}
.price-table th, .cmp-table th {
    color: var(--accent-strong);
    font-size: .95rem;
    letter-spacing: .04em;
    text-transform: uppercase;
}
.cmp-table__us { background: rgba(211,166,200,.08); }
.check { color: var(--success); font-weight: 700; }
.cross { color: var(--danger); font-weight: 700; }

.review-card { padding: 28px; gap: 16px; display: flex; flex-direction: column; }
.review-card__text { color: var(--muted); font-style: italic; }
.review-card__text::before { content: '“'; }
.review-card__text::after { content: '”'; }
.review-card__name { display: block; font-weight: 600; }
.review-card__role { color: var(--muted); font-size: .95rem; }

.slider {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid rgba(18,52,86,.08);
}
.slider__track { display: flex; transition: transform .4s ease; }
.slider__slide { min-width: 100%; }
.slider__slide img { height: 520px; object-fit: cover; }
.slider__btn {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 46px; height: 46px; border-radius: 50%;
    background: rgba(18,15,22,.78); color: var(--text);
}
.slider__btn--prev { left: 14px; }
.slider__btn--next { right: 14px; }
.slider__dots { display: flex; justify-content: center; gap: 8px; padding: 16px 0; }
.slider__dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.2); }
.slider__dot.active { background: var(--accent-strong); }

.seo-text__inner {
    max-width: 920px;
    padding: 34px;
    border-radius: 30px;
    background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
    border: 1px solid rgba(18,52,86,.08);
}
.seo-text__inner .section__title { text-align: left; }
.seo-text__inner p + p { margin-top: 14px; color: var(--muted); }

.error-card { padding: 24px; display: flex; gap: 16px; }
.error-card--error { border-left: 3px solid var(--danger); }
.error-card--tip { border-left: 3px solid var(--success); }
.error-card__title { margin-bottom: 4px; }
.error-card__text { color: var(--muted); }

.faq__list {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: 12px;
}
.faq__item {
    border-radius: 22px;
    background: rgba(255,255,255,.72);
    border: 1px solid rgba(18,52,86,.08);
    overflow: hidden;
}
.faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px;
    color: var(--text);
    font-size: 1.08rem;
    font-weight: 600;
    text-align: left;
}
.faq__arrow { color: var(--accent-strong); transition: transform .25s ease; }
.faq__question[aria-expanded="true"] .faq__arrow { transform: rotate(180deg); }
.faq__answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .35s ease;
}
.faq__answer > p {
    overflow: hidden;
    color: var(--muted);
    padding: 0 24px;
    transition: padding .35s ease;
}
.faq__answer.open { grid-template-rows: 1fr; }
.faq__answer.open > p { padding: 0 24px 22px; }

.cta__inner {
    padding: 38px;
    border-radius: 34px;
    background: linear-gradient(135deg, rgba(240,191,220,.16), rgba(255,255,255,.03));
    border: 1px solid rgba(255,255,255,.08);
    box-shadow: var(--shadow);
}
.cta__title {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.05;
    margin-bottom: 12px;
}
.cta__subtitle { color: var(--muted); max-width: 660px; margin-bottom: 26px; }
.cta__form {
    display: grid;
    gap: 14px;
    grid-template-columns: 1fr;
}
.cta__input {
    width: 100%;
    min-height: 58px;
    border-radius: 18px;
    border: 1px solid rgba(255,255,255,.08);
    background: rgba(18,15,22,.55);
    color: var(--text);
    padding: 0 18px;
}
.cta__input::placeholder { color: rgba(255,255,255,.45); }
.cta__privacy, .cta__msg { margin-top: 14px; color: var(--muted); }
@media (min-width: 900px) {
    .cta__form { grid-template-columns: 1fr 1fr auto; }
}

.footer {
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,.06);
}
.footer__inner {
    display: grid;
    gap: 28px;
    padding: 30px 0 34px;
}
.footer__brand,
.footer__contacts,
.footer__nav {
    padding: 24px;
    border-radius: 24px;
    background: rgba(255,255,255,.025);
    border: 1px solid rgba(255,255,255,.05);
}
.footer__logo {
    display: inline-block;
    margin-bottom: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.footer__desc,
.footer__hours,
.footer__address,
.footer__contact-link,
.footer__nav-link { color: var(--muted); }
.footer__heading { margin-bottom: 14px; }
.footer__contacts,
.footer__nav { display: grid; gap: 10px; align-content: start; }
.footer__bottom {
    border-top: 1px solid rgba(255,255,255,.06);
    padding: 18px 0 28px;
}
.footer__bottom-inner {
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--muted);
}
.footer__dev-link { color: var(--accent-strong); }
@media (min-width: 920px) {
    .footer__inner { grid-template-columns: 1.2fr 1fr .85fr; }
    .footer__bottom-inner { flex-direction: row; justify-content: space-between; }
}

@media (max-width: 680px) {
    body { font-size: 16px; }
    .section { padding: 74px 0; }
    .hero__content, .cta__inner, .seo-text__inner { padding: 26px; }
    .hero__image img { height: 360px; }
    .btn { width: 100%; }
    .header__logo { max-width: 190px; line-height: 1.1; }
}


.hero__content, .card, .case-card, .review-card, .error-card, .about__text, .about__stat { backdrop-filter: none; }
.section__title { color: #10283d; }
.footer__bottom { background: rgba(22,48,71,.92); color: #eaf5ff; }
.footer__dev-link { color: #b8e3ff; }