/*
=========================================================
Variables
=========================================================
*/

:root {
    --color-primary: #4db5f7;
    --color-primary-dark: #2493d6;
    --color-primary-soft: #eaf8ff;

    --color-secondary: #9ad69d;
    --color-warning: #ffd166;
    --color-coral: #ff8b6e;

    --color-text: #253248;
    --color-text-light: #52647e;
    --color-background: #ffffff;
    --color-background-soft: #f3fbff;
    --color-border: rgba(77, 181, 247, .20);

    --shadow-sm:
        0 8px 24px
        rgba(35, 74, 110, .08);

    --shadow-md:
        0 18px 44px
        rgba(35, 74, 110, .14);

    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 34px;
    --radius-round: 999px;

    --container-width: 1400px;

    --transition-fast: .2s ease;
    --transition-normal: .35s ease;
}


/*
=========================================================
Reset
=========================================================
*/

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

html {
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    margin: 0;

    color: var(--color-text);
    background-color: var(--color-background);

    font-family:
        Inter,
        "Segoe UI",
        Arial,
        sans-serif;

    line-height: 1.5;
}

body::selection {
    color: var(--color-background);
    background-color: var(--color-primary);
}

img {
    display: block;

    max-width: 100%;
}

a {
    color: inherit;

    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    border: 0;
}

[hidden] {
    display: none !important;
}


/*
=========================================================
Container
=========================================================
*/

.site-container {
    width:
        min(
            calc(100% - 48px),
            var(--container-width)
        );

    margin-inline: auto;
}


/*
=========================================================
Announcement
=========================================================
*/

.announcement {
    color: #255778;

    background:
        linear-gradient(
            90deg,
            rgba(224, 244, 255, .95),
            rgba(240, 251, 255, .95),
            rgba(224, 244, 255, .95)
        );

    border-bottom:
        1px solid
        rgba(77, 181, 247, .16);

    font-size: .94rem;
    font-weight: 700;

    animation:
        announcement-enter
        .65s ease both;
}

.announcement__inner {
    min-height: 42px;

    display: flex;
    align-items: center;
    justify-content: center;

    gap: .6rem;

    text-align: center;
}

.announcement__icon {
    font-size: 1rem;
}


/*
=========================================================
Header
=========================================================
*/

.site-header {
    position: relative;
    z-index: 20;

    background:
        rgba(255, 255, 255, .96);

    border-bottom:
        1px solid
        rgba(35, 74, 110, .07);

    box-shadow:
        0 5px 18px
        rgba(35, 74, 110, .06);
}

.site-header__inner {
    min-height: 104px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 2rem;
}

.site-brand {
    display: inline-flex;
    align-items: center;

    gap: 1rem;
}

.site-brand__logo {
    width: 80px;
    height: 80px;

    object-fit: contain;

    transition:
        transform var(--transition-normal);
}

.site-brand:hover .site-brand__logo {
    transform:
        rotate(4deg)
        scale(1.04);
}

.site-brand__text {
    display: flex;
    flex-direction: column;

    gap: .12rem;
}

.site-brand__slogan {
    margin: 0;

    font-size: .78rem;
    font-weight: 700;
}

.site-brand__slogan--kk {
    color: var(--color-primary-dark);
}

.site-brand__slogan--ru {
    color: var(--color-coral);
}

.site-brand__name {
    margin: 0;

    color: var(--color-text);

    font-size: 1.15rem;
    font-weight: 800;
}


/*
=========================================================
Language switch
=========================================================
*/

.language-switch {
    display: inline-flex;
    align-items: center;

    padding: .28rem;

    border:
        1px solid
        rgba(77, 181, 247, .25);

    border-radius: var(--radius-round);

    background-color:
        rgba(239, 249, 255, .94);

    box-shadow:
        0 6px 18px
        rgba(77, 181, 247, .12);
}

.language-switch__button {
    min-width: 52px;
    min-height: 36px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    padding:
        .4rem
        .75rem;

    border-radius: var(--radius-round);

    color: var(--color-text);

    background-color: transparent;

    font-size: .88rem;
    font-weight: 800;

    cursor: pointer;

    transition:
        color var(--transition-fast),
        background-color var(--transition-fast),
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
}

.language-switch__button:hover {
    color: var(--color-primary-dark);

    background-color:
        rgba(77, 181, 247, .11);

    transform: translateY(-1px);
}

.language-switch__button:active {
    transform: scale(.96);
}

.language-switch__button--active {
    color: var(--color-background);

    background:
        linear-gradient(
            135deg,
            var(--color-primary),
            var(--color-primary-dark)
        );

    box-shadow:
        0 5px 13px
        rgba(77, 181, 247, .34);

    cursor: default;
}

.language-switch__button--active:hover {
    color: var(--color-background);

    background:
        linear-gradient(
            135deg,
            var(--color-primary),
            var(--color-primary-dark)
        );

    transform: none;
}


/*
=========================================================
Hero
=========================================================
*/

.hero {
    position: relative;

    overflow: hidden;

    padding:
        clamp(4rem, 7vw, 7rem)
        0;

    background:
        linear-gradient(
            135deg,
            #eefaff 0%,
            #f6fcff 55%,
            #ffffff 100%
        );
}

.hero__shape {
    position: absolute;

    border-radius: 50%;

    pointer-events: none;

    filter: blur(1px);

    animation:
        shape-float
        16s ease-in-out infinite;
}

.hero__shape--one {
    top: 8%;
    left: -80px;

    width: 220px;
    height: 220px;

    background:
        rgba(110, 198, 255, .12);
}

.hero__shape--two {
    right: 18%;
    bottom: -110px;

    width: 310px;
    height: 310px;

    background:
        rgba(154, 214, 157, .12);

    animation-delay: -5s;
}

.hero__shape--three {
    top: 16%;
    right: -80px;

    width: 190px;
    height: 190px;

    background:
        rgba(255, 209, 102, .15);

    animation-delay: -9s;
}

.hero__grid {
    position: relative;
    z-index: 2;

    display: grid;
    grid-template-columns:
        minmax(0, .92fr)
        minmax(480px, 1.08fr);

    align-items: center;

    gap:
        clamp(3rem, 7vw, 7rem);
}

.hero__content {
    animation:
        content-enter
        .75s ease both;
}

.hero__eyebrow {
    width: fit-content;

    margin-bottom: 1.7rem;

    padding:
        .65rem
        1.1rem;

    border:
        1px solid
        rgba(77, 181, 247, .28);

    border-radius: var(--radius-round);

    color: var(--color-text);

    background:
        rgba(224, 244, 255, .82);

    box-shadow: var(--shadow-sm);

    font-size: .92rem;
    font-weight: 750;
}

.hero__slogan {
    margin:
        0
        0
        1.25rem;

    color: var(--color-text);

    font-size:
        clamp(
            1rem,
            1.5vw,
            1.2rem
        );

    font-weight: 800;
}

.hero__title {
    margin: 0;

    color: var(--color-text);

    font-size:
        clamp(
            3rem,
            6.4vw,
            6.2rem
        );

    font-weight: 900;
    line-height: .98;
    letter-spacing: -.045em;
}

.hero__title strong {
    display: block;

    margin-top: .2em;

    color: var(--color-primary);

    font-weight: 900;
}

.hero__description {
    max-width: 650px;

    margin:
        2rem
        0
        0;

    color: var(--color-text-light);

    font-size:
        clamp(
            1.05rem,
            1.5vw,
            1.25rem
        );

    line-height: 1.75;
}

.hero__note {
    max-width: 650px;

    margin:
        1rem
        0
        0;

    color: var(--color-text-light);

    line-height: 1.7;
}

.hero__highlight {
    width: fit-content;

    display: inline-flex;
    align-items: center;

    gap: .65rem;

    margin-top: 1.7rem;

    padding:
        .75rem
        1rem;

    border:
        1px solid
        rgba(255, 139, 110, .26);

    border-radius: var(--radius-md);

    color: var(--color-text);

    background:
        rgba(255, 246, 242, .96);

    box-shadow: var(--shadow-sm);

    font-size: .95rem;
    font-weight: 800;
}

.hero__highlight-icon {
    width: 26px;
    height: 26px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    flex-shrink: 0;

    border-radius: 50%;

    color: var(--color-background);

    background-color: var(--color-coral);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;

    gap: 1rem;

    margin-top: 2rem;
}

.button {
    min-height: 54px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    gap: .65rem;

    padding:
        .85rem
        1.6rem;

    border-radius: var(--radius-round);

    font-weight: 800;

    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast),
        background-color var(--transition-fast),
        color var(--transition-fast),
        border-color var(--transition-fast);
}

.button:hover {
    transform: translateY(-2px);
}

.button:active {
    transform: scale(.97);
}

.button--primary {
    color: var(--color-background);

    background:
        linear-gradient(
            135deg,
            var(--color-primary),
            var(--color-primary-dark)
        );

    box-shadow:
        0 12px 24px
        rgba(77, 181, 247, .25);
}

.button--primary:hover {
    box-shadow:
        0 16px 30px
        rgba(77, 181, 247, .34);
}

.button--secondary {
    border:
        2px solid
        var(--color-primary);

    color: var(--color-primary-dark);
    background-color: rgba(255, 255, 255, .70);
}

.button--secondary:hover {
    color: var(--color-background);
    background-color: var(--color-primary);
}

.button__icon {
    font-size: 1rem;
}

.hero__visual {
    position: relative;

    animation:
        visual-enter
        .85s .12s ease both;
}

.hero__image-frame {
    position: relative;

    overflow: hidden;

    border:
        3px solid
        rgba(77, 181, 247, .44);

    border-radius:
        47%
        53%
        44%
        56%
        /
        50%
        43%
        57%
        50%;

    background:
        rgba(221, 245, 255, .92);

    box-shadow:
        0 28px 65px
        rgba(35, 116, 166, .18);

    animation:
        image-breathe
        8s ease-in-out infinite;
}

.hero__image {
    width: 100%;
    min-height: 500px;

    object-fit: cover;
}

.hero__status {
    position: absolute;
    right: 5%;
    bottom: -20px;

    display: inline-flex;
    align-items: center;

    gap: .7rem;

    max-width: 360px;

    padding:
        .8rem
        1.1rem;

    border:
        1px solid
        rgba(154, 214, 157, .30);

    border-radius: var(--radius-round);

    color: #365f40;

    background:
        rgba(255, 255, 255, .95);

    box-shadow: var(--shadow-md);

    font-size: .9rem;
    font-weight: 800;
}

.hero__status-dot {
    width: 10px;
    height: 10px;

    flex-shrink: 0;

    border-radius: 50%;

    background-color: #58bf6a;

    box-shadow:
        0 0 0 6px
        rgba(88, 191, 106, .14);

    animation:
        status-pulse
        2.2s ease-in-out infinite;
}


/*
=========================================================
Section heading
=========================================================
*/

.section-heading {
    max-width: 780px;

    margin-bottom: 3rem;
}

.section-heading__eyebrow {
    margin:
        0
        0
        .75rem;

    color: var(--color-primary);

    font-size: .9rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.section-heading__title {
    margin: 0;

    color: var(--color-text);

    font-size:
        clamp(
            2.1rem,
            4vw,
            3.5rem
        );

    line-height: 1.12;
}

.section-heading__description {
    margin:
        1rem
        0
        0;

    color: var(--color-text-light);

    font-size: 1.06rem;
    line-height: 1.75;
}


/*
=========================================================
Contacts
=========================================================
*/

.contacts {
    padding:
        clamp(5rem, 9vw, 8rem)
        0;

    background-color: var(--color-background);
}

.contact-grid {
    display: grid;
    grid-template-columns:
        repeat(4, minmax(0, 1fr));

    gap: 1.25rem;
}

.contact-card {
    min-height: 150px;

    display: flex;
    align-items: center;

    gap: 1rem;

    padding: 1.5rem;

    border:
        1px solid
        var(--color-border);

    border-radius: var(--radius-lg);

    background:
        linear-gradient(
            145deg,
            rgba(255, 255, 255, .99),
            rgba(239, 249, 255, .88)
        );

    box-shadow: var(--shadow-sm);

    transition:
        transform var(--transition-normal),
        box-shadow var(--transition-normal),
        border-color var(--transition-normal);
}

a.contact-card:hover {
    transform: translateY(-6px);

    border-color:
        rgba(77, 181, 247, .42);

    box-shadow: var(--shadow-md);
}

.contact-card__icon {
    width: 54px;
    height: 54px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    flex-shrink: 0;

    border-radius: 50%;

    background:
        rgba(110, 198, 255, .18);

    font-size: 1.35rem;
}

.contact-card:nth-child(2)
.contact-card__icon {
    background:
        rgba(154, 214, 157, .22);
}

.contact-card:nth-child(3)
.contact-card__icon {
    background:
        rgba(255, 209, 102, .24);
}

.contact-card:nth-child(4)
.contact-card__icon {
    background:
        rgba(255, 139, 110, .16);
}

.contact-card__content {
    min-width: 0;

    display: flex;
    flex-direction: column;

    gap: .2rem;

    color: var(--color-text-light);
}

.contact-card__label {
    font-size: .82rem;
}

.contact-card strong {
    overflow-wrap: anywhere;

    color: var(--color-text);

    font-size: 1rem;
}


/*
=========================================================
Preview
=========================================================
*/

.preview {
    padding:
        0
        0
        clamp(5rem, 9vw, 8rem);
}

.preview__panel {
    position: relative;

    overflow: hidden;

    display: grid;
    grid-template-columns:
        minmax(0, .9fr)
        minmax(340px, 1.1fr);

    align-items: center;

    gap:
        clamp(2.5rem, 6vw, 6rem);

    padding:
        clamp(2.5rem, 6vw, 5rem);

    border:
        1px solid
        rgba(77, 181, 247, .20);

    border-radius: var(--radius-xl);

    background:
        linear-gradient(
            135deg,
            rgba(235, 248, 255, .98),
            rgba(255, 255, 255, .98)
        );

    box-shadow: var(--shadow-md);
}

.preview__panel::before {
    content: "";

    position: absolute;
    top: -120px;
    right: -100px;

    width: 340px;
    height: 340px;

    border-radius: 50%;

    background:
        rgba(110, 198, 255, .11);
}

.preview__panel::after {
    content: "";

    position: absolute;
    bottom: -100px;
    left: 20%;

    width: 240px;
    height: 240px;

    border-radius: 50%;

    background:
        rgba(154, 214, 157, .10);
}

.preview__content,
.preview__features {
    position: relative;
    z-index: 2;
}

.preview__eyebrow {
    margin:
        0
        0
        .8rem;

    color: var(--color-primary-dark);

    font-size: .9rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.preview__title {
    margin: 0;

    color: var(--color-text);

    font-size:
        clamp(
            2rem,
            4vw,
            3.7rem
        );

    line-height: 1.12;
}

.preview__description {
    margin:
        1.25rem
        0
        0;

    color: var(--color-text-light);

    font-size: 1.06rem;
    line-height: 1.75;
}

.preview__features {
    display: grid;
    grid-template-columns:
        repeat(2, minmax(0, 1fr));

    gap: 1rem;

    margin: 0;
    padding: 0;

    list-style: none;
}

.preview__features li {
    position: relative;

    min-height: 64px;

    display: flex;
    align-items: center;

    padding:
        .9rem
        1rem
        .9rem
        3rem;

    border:
        1px solid
        rgba(77, 181, 247, .16);

    border-radius: var(--radius-md);

    color: var(--color-text);

    background:
        rgba(255, 255, 255, .78);

    font-size: .94rem;
    font-weight: 750;
}

.preview__features li::before {
    content: "✓";

    position: absolute;
    left: 1rem;

    width: 24px;
    height: 24px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    border-radius: 50%;

    color: var(--color-background);
    background-color: var(--color-primary);

    font-size: .75rem;
    font-weight: 900;
}


/*
=========================================================
Footer
=========================================================
*/

.site-footer {
    border-top:
        1px solid
        rgba(35, 74, 110, .08);

    background-color: #f8fbfd;
}

.site-footer__inner {
    min-height: 150px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 2rem;
}

.site-footer__brand {
    display: flex;
    align-items: center;

    gap: 1rem;
}

.site-footer__logo {
    width: 58px;
    height: 58px;

    object-fit: contain;
}

.site-footer__brand strong {
    color: var(--color-text);
}

.site-footer__brand p,
.site-footer__meta p {
    margin:
        .25rem
        0
        0;

    color: var(--color-text-light);
}

.site-footer__meta {
    text-align: right;
}

.site-footer__version {
    font-size: .84rem;
    font-weight: 750;
}


/*
=========================================================
Animations
=========================================================
*/

@keyframes announcement-enter {
    from {
        opacity: 0;

        transform: translateY(-12px);
    }

    to {
        opacity: 1;

        transform: translateY(0);
    }
}

@keyframes content-enter {
    from {
        opacity: 0;

        transform: translateY(24px);
    }

    to {
        opacity: 1;

        transform: translateY(0);
    }
}

@keyframes visual-enter {
    from {
        opacity: 0;

        transform:
            translateX(30px)
            scale(.97);
    }

    to {
        opacity: 1;

        transform:
            translateX(0)
            scale(1);
    }
}

@keyframes shape-float {
    0%,
    100% {
        transform:
            translate3d(0, 0, 0)
            scale(1);
    }

    50% {
        transform:
            translate3d(14px, -18px, 0)
            scale(1.05);
    }
}

@keyframes image-breathe {
    0%,
    100% {
        transform:
            translateY(0)
            rotate(0);
    }

    50% {
        transform:
            translateY(-7px)
            rotate(.25deg);
    }
}

@keyframes status-pulse {
    0%,
    100% {
        box-shadow:
            0 0 0 6px
            rgba(88, 191, 106, .14);
    }

    50% {
        box-shadow:
            0 0 0 10px
            rgba(88, 191, 106, .04);
    }
}


/*
=========================================================
Responsive
=========================================================
*/

@media (max-width: 1199.98px) {
    .hero__grid {
        grid-template-columns:
            minmax(0, .95fr)
            minmax(420px, 1.05fr);

        gap: 3rem;
    }

    .hero__image {
        min-height: 440px;
    }

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

@media (max-width: 991.98px) {
    .site-header__inner {
        min-height: 94px;
    }

    .site-brand__logo {
        width: 68px;
        height: 68px;
    }

    .hero__grid {
        grid-template-columns: 1fr;
    }

    .hero__content {
        text-align: center;
    }

    .hero__eyebrow,
    .hero__highlight {
        margin-inline: auto;
    }

    .hero__description,
    .hero__note {
        margin-inline: auto;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__visual {
        max-width: 800px;

        margin-inline: auto;
    }

    .preview__panel {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767.98px) {
    .site-container {
        width:
            min(
                calc(100% - 32px),
                var(--container-width)
            );
    }

    .site-header__inner {
        min-height: auto;

        padding:
            1rem
            0;

        align-items: flex-start;
    }

    .site-brand {
        align-items: flex-start;
    }

    .site-brand__logo {
        width: 58px;
        height: 58px;
    }

    .site-brand__slogan {
        font-size: .7rem;
    }

    .site-brand__name {
        font-size: 1rem;
    }

    .language-switch__button {
        min-width: 45px;

        padding:
            .36rem
            .55rem;
    }

    .hero {
        padding:
            3.6rem
            0
            5rem;
    }

    .hero__image {
        min-height: 360px;
    }

    .hero__status {
        position: relative;
        right: auto;
        bottom: auto;

        width: fit-content;

        margin:
            1.5rem
            auto
            0;
    }

    .preview__features {
        grid-template-columns: 1fr;
    }

    .site-footer__inner {
        padding:
            2rem
            0;

        flex-direction: column;

        align-items: flex-start;
    }

    .site-footer__meta {
        text-align: left;
    }
}

@media (max-width: 575.98px) {
    .announcement {
        font-size: .82rem;
    }

    .announcement__inner {
        min-height: 48px;
    }

    .site-header__inner {
        flex-direction: column;

        align-items: stretch;

        gap: .9rem;
    }

    .site-brand {
        justify-content: center;
    }

    .language-switch {
        align-self: center;
    }

    .hero__title {
        font-size:
            clamp(
                2.65rem,
                15vw,
                4.4rem
            );
    }

    .hero__description {
        font-size: 1rem;
    }

    .hero__highlight {
        align-items: flex-start;

        text-align: left;
    }

    .hero__actions {
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .hero__image {
        min-height: 280px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-card {
        min-height: 130px;
    }

    .preview__panel {
        padding:
            2rem
            1.35rem;
    }

    .site-footer__brand {
        align-items: flex-start;
    }
}


/*
=========================================================
Reduced motion
=========================================================
*/

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}