/* loader */
.loading-overlay {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    justify-content: center;
    align-items: center;
    background-color: var(--color-text-primary);
    opacity: 0.1;
    width: 100%;
    height: 100%;
    z-index: 1000000;
    transition: all 2s ease;
    border-radius: 32px;
    pointer-events: none;
}

.loading-spinner {
    width: 100px;
    height: 100px;
    border: 5px solid var(--color-primary);
    border-top: 5px solid var(--color-tertiary-light);
    border-radius: 50%;
    animation: spin 2s linear infinite;
}

.no-js .loading-overlay {
    display: none;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* loader */

.buttons-block {
    display: flex;
    flex-flow: row nowrap;
    align-items: center;
    gap: 16px;
}

.button {
    position: relative;
    display: block;
    color: var(--color-font-main);
    padding: 0;
    border: 1px solid transparent;
    border-radius: 8px;
    background-origin: border-box;
    background-clip: content-box, border-box;
    transition: var(--transition-all-main);
    background-color: var(--color-tertiary);
    overflow: hidden;
    cursor: pointer;
}

.button__content {
    background-image: var(--color-tertiary);
    padding: 17px 31px;
    position: relative;
    z-index: 1;
}

.button_accent, .button_accent_hover_animation {
    color: var(--color-main);
    background-image: linear-gradient(var(--color-accent-main), var(--color-accent-main)),
    linear-gradient(to left, var(--color-accent-main), var(--color-font-main));
    box-shadow: 0 0 6px 0 #B3A3FF7A;
}

.button_accent_hover_animation__text {
    position: relative;
    display: block;
    padding: 17px 31px;
    text-align: center;
}

.button_accent:hover {
    box-shadow: 0 0 32px 0 #B3A3FF7A;
}

.button_accent_hover_animation:hover {
    box-shadow: 0 0 32px 0 #B3A3FF7A;
}

.button_accent_hover_animation:before, .button_second_hover_animation:before {
    content: '';
    position: absolute;
    top: 0;
    left: -30%;
    width: 0;
    height: 100%;
    border-radius: 5px;
    transition: all 250ms ease-out;
    transform: skewX(-45deg);
    z-index: 0;
}

.button_accent_hover_animation:before {
    border-image-source: linear-gradient(270deg, var(--color-font-main) 0%, rgba(255, 255, 255, 0) 100%);
    background-image: linear-gradient(var(--color-accent-secondary), var(--color-accent-secondary)),
    linear-gradient(to right, var(--color-accent-secondary), var(--color-font-main));
}

.button_second_hover_animation:before {
    background: var(--color-tertiary-light);
}

.button_accent_hover_animation:hover:before, .button_second_hover_animation:hover:before {
    width: 200%;
    left: -30%;
}

.button_second_hover_animation {
    background-image: linear-gradient(var(--color-tertiary-light), var(--color-tertiary-light)), linear-gradient(to right, var(--color-tertiary), var(--color-font-main));
    background-size: 0 100%;
    background-repeat: no-repeat;
}

.button_second_hover_animation:hover {
    animation: animateBackground 150ms ease-out forwards;
    animation-delay: 0.1s;
}

.button_second_hover_animation:hover:before {
    background-image: linear-gradient(var(--color-tertiary-light), var(--color-tertiary-light)), linear-gradient(to right, var(--color-tertiary), var(--color-font-main));
}

.button_third_hover_animation {
    transition: none;
}

.button_third_hover_animation:hover {
    background:
            radial-gradient(110.23% 82.81% at 50% 17.19%,
            rgba(255, 255, 255, 0.10) 0%,
            rgba(255, 255, 255, 0.04) 100%),
            radial-gradient(172.39% 156.26% at 105.11% -15.62%,
            rgba(19, 229, 213, 0.50) 19.66%,
            rgba(19, 229, 213, 0.06) 71.06%),
            radial-gradient(93.05% 104.93% at 20.17% -22.66%, #1D52A0 0%, rgba(29, 82, 160, 0.18) 100%),
            radial-gradient(135.71% 87.74% at 33.81% 109.38%, rgba(102, 129, 226, 0.81) 0%,
            rgba(102, 129, 226, 0.00) 95.37%),
            #EEF9FF;
    box-shadow:
            0 12px 35px rgba(41, 142, 174, 0.9),
            0 22px 50px rgba(98, 118, 224, 0.3),
            -12px -12px 40px rgba(182, 117, 222, 0.5),
            inset 0 0 12px rgba(255, 255, 255, 0.3);
}

.button__content_accent {
    background-image: var(--color-accent-main);
}

.button:hover .button__content_accent {
    background-image: var(--color-accent-secondary);
}

.button_radial {
    width: 124px;
    height: 124px;
    border-radius: 50%;
}

.button_big {
    border-radius: 400px;
    padding: 25px 47px;
}

.button__transparent,
.button__transparent:hover {
    background-color: unset;
    background-image: none;
    border: none;
}

.button_flexed {
    display: flex;
    justify-content: center;
}

/* button with icon should contain span button__text */
.button__text {
    position: relative;
    display: block;
    padding-left: 33px;
    width: 100%;
}

.button__text:hover {
    color: var(--color-accent-main);
}

.button__text::before {
    content: "";
    position: absolute;
    width: 24px;
    height: 24px;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background-image: url(../img/arrow-left.svg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}

.button__text:hover::before {
    filter: brightness(0) saturate(100%) invert(76%) sepia(39%) saturate(5279%) hue-rotate(206deg) brightness(106%) contrast(104%);
}

/* cards */
.cards {
    display: flex;
    flex-flow: row wrap;
    padding-top: 1px;
    margin: -33px -16px 0;
}

.cards__item {
    flex: 1 0 calc(50% - 32px);
    padding: 0 16px 0;
    margin-top: 32px;
}

/* cards */

/* input */
.input {
    width: 100%;
    padding: 18px 16px;
    background-color: var(--bg-color-secondary);
    border: none;
    border-radius: 12px;
}

.input::placeholder {
    color: var(--font-color-secondary)
}

.input:focus-visible,
.input:focus {
    outline-color: var(--accent-color-main);
}

/* input */

.link {
    color: var(--color-font-main);
    transition: var(--transition-all-main);
}

.link:hover {
    color: var(--color-accent-main);
}

.link_secondary {
    color: var(--color-font-secondary);
}

.link_alternate {
    color: var(--color-accent-main);
}

.link_alternate:hover {
    color: var(--color-accent-secondary);
}

.light-ellipse {
    position: relative;
}

.light-ellipse::before,
.light-ellipse_doubled::after {
    content: "";
    position: absolute;
    left: 95px;
    top: 55px;
    width: 215px;
    height: 240px;
    border-radius: 50%;
    filter: blur(400px);
    transform: rotate(-44.26deg);
    background-color: var(--color-primary);
    opacity: 60%;
    z-index: -1;
}

.light-ellipse_doubled::after {
    left: unset;
    right: 95px;
    transform: rotate(44.26deg);
}

/* generated spinner */
@keyframes spinner {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.spinner {
    width: 100%;
    height: 100%;
    position: relative;
    transform: translateZ(0) scale(1);
    backface-visibility: hidden;
    transform-origin: 0 0;
}

.spinner div {
    position: absolute;
    width: 16px;
    height: 16px;
    margin: 0;
    border: 2px solid var(--bg-color-secondary);
    border-top-color: transparent;
    border-radius: 50%;
    box-sizing: content-box;
    animation: spinner 1s linear infinite;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.spinner-rolling {
    position: relative;
    top: 4px;
    width: 20px;
    height: 20px;
    display: inline-block;
    overflow: hidden;
    background: transparent;
}

/* generated spinner */

.scroll-up {
    display: none;
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: fit-content;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background-color: var(--color-tertiary-transparent);
    box-shadow: 0 0 12px 0 #00000052;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
}

.scroll-up:hover {
    background-color: var(--color-accent-main);
}

@media (max-width: 1023px) {
    .cards {
        margin: -31px -15px 0;
    }

    .cards__item {
        flex: 1 0 calc(50% - 30px);
        padding: 0 15px 0;
        margin-top: 30px;
    }
}

@media (max-width: 991px) {
    .button_big {
        padding: 19px 31px;
    }

    .button_with-icon {
        padding-left: 65px;
    }
}

@media (max-width: 767px) {
    .cards {
        margin: -25px 0;
    }

    .cards__item {
        flex: 1 0 100%;
        padding: 0;
        margin-top: 24px;
    }

    .light-ellipse::before {
        left: 50%;
        top: 170px;
        transform: translate(-50%, -50%) rotate(-44.26deg);
    }

    .light-ellipse_doubled::after {
        display: none;
    }
}

@keyframes animateBackground {
    from {
        background-size: 0 100%;
    }
    to {
        background-size: 100% 100%;
    }
}