:root {
    /* Цвета */
    --sp-color-bg: #05060a;
    --sp-color-text: #e6edf7;
    --sp-color-text-muted: #9aa4b2;
    --sp-color-card-bg: #0b1220;
    --sp-color-pink-1: #22d3ee; /* turquoise */
    --sp-color-pink-2: #2dd4bf; /* teal */
    --sp-color-pink-3: #1d4ed8; /* blue/dark blue */
    --sp-color-purple-1: #3b82f6; /* blue */
    --sp-color-purple-2: #0ea5e9; /* cyan-blue */
    --sp-color-purple-3: #075985; /* dark blue */

    /* Градиенты */
    --sp-gradient-main: linear-gradient(135deg, #1d4ed8, #22d3ee);
    --sp-gradient-soft: linear-gradient(
        135deg,
        rgba(29, 78, 216, 0.12),
        rgba(34, 211, 238, 0.12)
    );

    /* Тени и свечения */
    --sp-shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.40);
    --sp-shadow-card: 0 18px 35px rgba(29, 78, 216, 0.18);
    --sp-glow: 0 0 22px rgba(34, 211, 238, 0.55);

    /* Типографика */
    --sp-font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI',
        Roboto, sans-serif;
    --sp-font-size-base: 16px;
    --sp-line-height-base: 1.6;

    /* Скругления и отступы */
    --sp-radius-sm: 10px;
    --sp-radius-md: 16px;
    --sp-radius-lg: 24px;
    --sp-radius-pill: 999px;

    --sp-space-xs: 8px;
    --sp-space-sm: 12px;
    --sp-space-md: 20px;
    --sp-space-lg: 32px;
    --sp-space-xl: 48px;
    --sp-space-xxl: 80px;

    --sp-max-width: 1200px;
}

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

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--sp-font-family);
    font-size: var(--sp-font-size-base);
    line-height: var(--sp-line-height-base);
    color: var(--sp-color-text);
    background-color: var(--sp-color-bg);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

button {
    font-family: inherit;
}

.sp-page {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(34, 211, 238, 0.16), transparent 60%),
        radial-gradient(circle at bottom right, rgba(29, 78, 216, 0.16), transparent 55%),
        var(--sp-color-bg);
}

.sp-main {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--sp-space-lg) var(--sp-space-xxl);
}

/* Заголовки с градиентом */
.sp-heading {
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.sp-heading--gradient {
    background-image: var(--sp-gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sp-heading--xl {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    line-height: 1.05;
}

.sp-heading--lg {
    font-size: clamp(2rem, 3vw, 2.6rem);
    line-height: 1.1;
}

.sp-text {
    margin: 0;
    color: var(--sp-color-text);
}

.sp-text--lg {
    font-size: 1.1rem;
}

.sp-text--muted {
    color: var(--sp-color-text-muted);
}

/* Кнопки */
.sp-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.9rem 1.6rem;
    border-radius: var(--sp-radius-pill);
    font-size: 0.95rem;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition:
        background 0.25s ease,
        color 0.25s ease,
        transform 0.25s ease,
        box-shadow 0.25s ease,
        border-color 0.25s ease;
    white-space: nowrap;
}

.sp-button--primary {
    background-image: var(--sp-gradient-main);
    color: #ffffff;
    box-shadow: var(--sp-shadow-card);
}

.sp-button--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--sp-glow);
}

.sp-button--outline {
    background-color: rgba(255, 255, 255, 0.06);
    border-color: rgba(34, 211, 238, 0.35);
    color: var(--sp-color-text);
}

.sp-button--outline:hover {
    background-image: var(--sp-gradient-soft);
    transform: translateY(-2px);
    box-shadow: var(--sp-shadow-soft);
}

/* Шапка */
.sp-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(16px);
    background: linear-gradient(
        to bottom,
        rgba(5, 6, 10, 0.92),
        rgba(5, 6, 10, 0.76),
        transparent
    );
}

.sp-header__inner {
    max-width: var(--sp-max-width);
    margin: 0 auto;
    padding: 1rem var(--sp-space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-space-lg);
}

.sp-header__logo {
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: -0.04em;
    background-image: var(--sp-gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sp-header__nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.95rem;
}

.sp-header__link {
    position: relative;
    color: var(--sp-color-text-muted);
    transition: color 0.2s ease;
}

.sp-header__link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    border-radius: 999px;
    background: var(--sp-gradient-main);
    transition: width 0.2s ease;
}

.sp-header__link:hover {
    color: var(--sp-color-text);
}

.sp-header__link:hover::after {
    width: 100%;
}

.sp-header__cta {
    font-size: 0.9rem;
}

.sp-header__burger {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 0.4rem;
    border: none;
    background: transparent;
    cursor: pointer;
}

.sp-header__burger span {
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background-color: var(--sp-color-text);
    transition:
        transform 0.25s ease,
        opacity 0.25s ease;
}

.sp-header__burger--open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.sp-header__burger--open span:nth-child(2) {
    opacity: 0;
}
.sp-header__burger--open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* HERO */
.sp-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.2fr);
    gap: var(--sp-space-xl);
    align-items: center;
    max-width: var(--sp-max-width);
    margin: var(--sp-space-xxl) auto var(--sp-space-xxl);
}

.sp-hero__content {
    max-width: 560px;
}

.sp-hero__eyebrow {
    margin: 0 0 var(--sp-space-xs);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--sp-color-text-muted);
}

.sp-hero__subtitle {
    margin: var(--sp-space-md) 0 var(--sp-space-md);
    font-size: 1.05rem;
    color: var(--sp-color-text-muted);
}

.sp-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-space-sm);
    margin-bottom: var(--sp-space-sm);
}

.sp-hero__note {
    margin: 0;
    font-size: 0.9rem;
    color: var(--sp-color-text-muted);
}

.sp-hero__visual {
    position: relative;
    min-height: 320px;
}

.sp-hero__blob {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 320px;
    height: 320px;
    border-radius: 100%;
    background: radial-gradient(circle at 20% 20%, rgba(34, 211, 238, 0.55), transparent 55%),
        radial-gradient(circle at 80% 80%, rgba(29, 78, 216, 0.40), transparent 55%),
        var(--sp-gradient-main);
    filter: blur(16px);
    opacity: 0.9;
    animation: sp-float 12s ease-in-out infinite alternate;
}

.sp-hero__ring {
    position: absolute;
    border-radius: 100%;
    border: 1px solid rgba(34, 211, 238, 0.40);
    box-shadow: 0 0 44px rgba(34, 211, 238, 0.22);
}

.sp-hero__ring--one {
    width: 260px;
    height: 260px;
    top: 40px;
    right: 40px;
}

.sp-hero__ring--two {
    width: 200px;
    height: 200px;
    bottom: 20px;
    left: 10px;
}

@keyframes sp-float {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    50% {
        transform: translate3d(-10px, 10px, 0) scale(1.04);
    }
    100% {
        transform: translate3d(16px, -12px, 0) scale(1.02);
    }
}

/* Общая секция */
.sp-section {
    max-width: var(--sp-max-width);
    margin: 0 auto var(--sp-space-xxl);
}

.sp-section__header {
    max-width: 720px;
    margin: 0 auto var(--sp-space-lg);
    text-align: center;
}

.sp-section__body {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--sp-space-sm);
}

.sp-divider {
    height: 2px;
    border-radius: 999px;
    margin-top: var(--sp-space-lg);
}

.sp-divider--gradient {
    background-image: var(--sp-gradient-main);
    box-shadow: 0 0 18px rgba(255, 105, 180, 0.4);
}

/* Карточки */
.sp-cards {
    display: grid;
    gap: var(--sp-space-lg);
}

.sp-cards--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.sp-cards--three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sp-card {
    position: relative;
    background-color: var(--sp-color-card-bg);
    border-radius: var(--sp-radius-lg);
    padding: var(--sp-space-lg);
    border: 1px solid rgba(148, 0, 211, 0.12);
    box-shadow: var(--sp-shadow-soft);
    overflow: hidden;
    transition:
        transform 0.28s ease,
        box-shadow 0.28s ease,
        border-color 0.28s ease,
        background 0.28s ease;
}

.sp-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.18), rgba(29, 78, 216, 0.18));
    -webkit-mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.28s ease;
}

.sp-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sp-shadow-card);
}

.sp-card:hover::before {
    opacity: 1;
}

.sp-card--outlined {
    background: rgba(11, 18, 32, 0.70);
}

.sp-card--soft {
    background: linear-gradient(
        145deg,
        rgba(34, 211, 238, 0.10),
        rgba(29, 78, 216, 0.08)
    );
}

.sp-card__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--sp-radius-pill);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: var(--sp-space-sm);
}

.sp-card__icon--gradient {
    background-image: var(--sp-gradient-main);
    color: #ffffff;
    box-shadow: 0 0 16px rgba(34, 211, 238, 0.35);
}

.sp-card__icon--circle {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(34, 211, 238, 0.22);
    color: var(--sp-color-text);
}

.sp-card__title {
    margin: 0 0 var(--sp-space-xs);
    font-size: 1.2rem;
}

.sp-card__text {
    margin: 0 0 var(--sp-space-sm);
    color: var(--sp-color-text-muted);
}

.sp-card__list {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--sp-color-text-muted);
    font-size: 0.95rem;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sp-card__button {
    margin-top: var(--sp-space-sm);
}

/* Результаты */
.sp-grid {
    display: grid;
    gap: var(--sp-space-lg);
}

.sp-grid--results {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.sp-grid--three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sp-stat-card {
    padding: var(--sp-space-lg);
    border-radius: var(--sp-radius-lg);
    background: rgba(11, 18, 32, 0.65);
    border: 1px solid rgba(34, 211, 238, 0.16);
    box-shadow: var(--sp-shadow-soft);
}

.sp-stat-card__label {
    margin: 0 0 4px;
    font-size: 0.9rem;
    color: var(--sp-color-text-muted);
}

.sp-stat-card__value {
    margin: 0 0 6px;
    font-size: 1.8rem;
    font-weight: 700;
    background-image: var(--sp-gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sp-stat-card__note {
    margin: 0;
    font-size: 0.85rem;
    color: var(--sp-color-text-muted);
}

/* Технологии */
.sp-tech-card {
    padding: var(--sp-space-lg);
    border-radius: var(--sp-radius-lg);
    background-color: rgba(11, 18, 32, 0.72);
    border: 1px solid rgba(34, 211, 238, 0.14);
    box-shadow: var(--sp-shadow-soft);
}

.sp-tech-card__title {
    margin: 0 0 var(--sp-space-xs);
    font-size: 1.1rem;
}

.sp-tech-card__text {
    margin: 0;
    color: var(--sp-color-text-muted);
}

/* Шаги */
.sp-steps__timeline {
    position: relative;
    margin-top: var(--sp-space-lg);
}

.sp-steps__line {
    position: absolute;
    top: 34px;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 3px;
    background-image: var(--sp-gradient-main);
    opacity: 0.35;
}

.sp-steps__items {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-space-xl);
}

.sp-step {
    text-align: center;
}

.sp-step__number {
    width: 40px;
    height: 40px;
    margin: 0 auto var(--sp-space-sm);
    border-radius: 999px;
    background-image: var(--sp-gradient-main);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    box-shadow: 0 0 16px rgba(255, 105, 180, 0.6);
}

.sp-step__title {
    margin: 0 0 6px;
    font-size: 1.05rem;
}

.sp-step__text {
    margin: 0;
    font-size: 0.95rem;
    color: var(--sp-color-text-muted);
}

/* Тарифы */
.sp-pricing__cards {
    margin-top: var(--sp-space-lg);
}

.sp-card--pricing {
    padding-top: var(--sp-space-xl);
}

.sp-card__badge {
    position: absolute;
    top: var(--sp-space-sm);
    right: var(--sp-space-sm);
    padding: 4px 10px;
    border-radius: var(--sp-radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background-image: var(--sp-gradient-main);
    color: #ffffff;
}

.sp-card__price {
    margin: 0 0 4px;
    font-size: 1.6rem;
    font-weight: 700;
}

.sp-card__subtitle {
    margin: 0 0 var(--sp-space-sm);
    font-size: 0.95rem;
    color: var(--sp-color-text-muted);
}

.sp-card--featured {
    background: radial-gradient(circle at top, rgba(255, 182, 193, 0.6), #f8f9fa);
    box-shadow: var(--sp-shadow-card);
}

/* Контакты */
.sp-contacts__content {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: var(--sp-space-xl);
    align-items: center;
}

.sp-contacts__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-space-sm);
}

.sp-contacts__info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sp-contacts__info a {
    text-decoration: underline;
    text-decoration-color: rgba(148, 0, 211, 0.5);
}

/* Подвал */
.sp-footer {
    border-top: 1px solid rgba(148, 0, 211, 0.12);
    padding: var(--sp-space-lg) var(--sp-space-lg) var(--sp-space-xl);
    background: radial-gradient(circle at top, rgba(255, 182, 193, 0.4), transparent 55%);
}

.sp-footer__inner {
    max-width: var(--sp-max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) auto;
    gap: var(--sp-space-lg);
    align-items: center;
}

.sp-footer__brand {
    max-width: 460px;
}

.sp-footer__logo {
    display: inline-block;
    margin-bottom: 6px;
    font-weight: 800;
    letter-spacing: -0.04em;
    font-size: 1.3rem;
    background-image: var(--sp-gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sp-footer__text {
    margin: 0;
    font-size: 0.95rem;
    color: var(--sp-color-text-muted);
}

.sp-footer__socials {
    display: flex;
    gap: var(--sp-space-sm);
}

.sp-footer__social {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background-image: var(--sp-gradient-main);
    box-shadow: 0 0 14px rgba(255, 105, 180, 0.7);
    opacity: 0.8;
    transition:
        transform 0.24s ease,
        opacity 0.24s ease,
        box-shadow 0.24s ease;
}

.sp-footer__social:hover {
    transform: translateY(-3px);
    opacity: 1;
    box-shadow: 0 0 18px rgba(148, 0, 211, 0.9);
}

.sp-footer__meta {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-space-sm);
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--sp-color-text-muted);
    margin-top: var(--sp-space-sm);
}

.sp-footer__policy {
    text-decoration: underline;
    text-decoration-color: rgba(148, 0, 211, 0.5);
}

/* Анимации появления */
.sp-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity 0.6s ease-out,
        transform 0.6s ease-out;
}

.sp-reveal--visible {
    opacity: 1;
    transform: translateY(0);
}

.sp-reveal--delay-1 {
    transition-delay: 0.12s;
}
.sp-reveal--delay-2 {
    transition-delay: 0.24s;
}
.sp-reveal--delay-3 {
    transition-delay: 0.36s;
}

/* Адаптивность */
@media (max-width: 1024px) {
    .sp-main {
        padding: 0 var(--sp-space-md) var(--sp-space-xl);
    }

    .sp-header__inner {
        padding-inline: var(--sp-space-md);
    }

    .sp-hero {
        grid-template-columns: minmax(0, 1fr);
        gap: var(--sp-space-lg);
    }

    .sp-hero__visual {
        min-height: 260px;
        order: -1;
    }

    .sp-grid--results {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sp-grid--three,
    .sp-cards--three {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .sp-header__nav {
        position: absolute;
        inset-inline: 0;
        top: 64px;
        padding: var(--sp-space-sm) var(--sp-space-lg) var(--sp-space-md);
        display: flex;
        flex-direction: column;
        gap: var(--sp-space-sm);
        background: rgba(5, 6, 10, 0.94);
        border-bottom: 1px solid rgba(34, 211, 238, 0.14);
        transform: translateY(-20px);
        opacity: 0;
        pointer-events: none;
        transition:
            opacity 0.24s ease,
            transform 0.24s ease;
    }

    .sp-header__nav--open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .sp-header__burger {
        display: flex;
    }

    .sp-header__inner {
        gap: var(--sp-space-sm);
    }

    .sp-main {
        padding-inline: var(--sp-space-md);
    }

    .sp-section {
        margin-bottom: var(--sp-space-xl);
    }

    .sp-cards--two,
    .sp-cards--three,
    .sp-grid--results,
    .sp-grid--three {
        grid-template-columns: minmax(0, 1fr);
    }

    .sp-steps__line {
        display: none;
    }

    .sp-steps__items {
        grid-template-columns: minmax(0, 1fr);
        gap: var(--sp-space-lg);
    }

    .sp-contacts__content {
        grid-template-columns: minmax(0, 1fr);
    }

    .sp-footer__inner {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 480px) {
    .sp-header__cta {
        display: none;
    }

    .sp-hero {
        margin-top: var(--sp-space-xl);
    }

    .sp-hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .sp-card {
        padding: var(--sp-space-md);
    }

    .sp-section__header {
        margin-bottom: var(--sp-space-md);
    }

    .sp-footer {
        padding-inline: var(--sp-space-md);
    }
}