/* =========================
   СБРОС СТИЛЕЙ
========================= */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


/* =========================
   ОСНОВА СТРАНИЦЫ
========================= */

html,
body {
    width: 100%;
    min-height: 100%;
}


body {
    min-height: 100vh;

    background: #0b0c12;
    color: #ffffff;

    font-family: "Trebuchet MS", Arial, sans-serif;

    overflow: hidden;
}


/* =========================
   ФОНОВАЯ САКУРА
========================= */

.sakura-background {
    position: fixed;

    top: -20px;
    left: -20px;

    width: calc(100% + 40px);
    height: calc(100% + 40px);

    background-image: url("sakura.jpg");

    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

    z-index: 0;

    animation: sakura-move 10s ease-in-out infinite;
}


/* =========================
   ПОКАЧИВАНИЕ САКУРЫ
========================= */

@keyframes sakura-move {

    0% {
        transform:
            scale(1.03)
            translate(0, 0);
    }

    50% {
        transform:
            scale(1.06)
            translate(8px, -6px);
    }

    100% {
        transform:
            scale(1.03)
            translate(0, 0);
    }

}


/* =========================
   ОСНОВНАЯ СТРАНИЦА
========================= */

.page {
    position: relative;

    z-index: 2;

    width: 100%;
    min-height: 100vh;

    display: flex;

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

    padding: 30px;
}


/* =========================
   ЦЕНТРАЛЬНЫЙ КОНТЕНТ
========================= */

.content {
    width: 100%;
    max-width: 900px;

    text-align: center;

    position: relative;

    z-index: 3;
}


/* =========================
   МАЛЕНЬКИЙ ВЕРХНИЙ ТЕКСТ
========================= */

.small-text {
    color: #9fa1aa;

    font-size: 13px;

    text-transform: uppercase;

    letter-spacing: 4px;

    margin-bottom: 35px;

    animation:
        fall-down
        0.8s
        ease
        forwards;

    opacity: 0;
}


/* =========================
   ГЛАВНЫЙ ЗАГОЛОВОК
========================= */

h1 {
    font-family:
        Georgia,
        "Times New Roman",
        serif;

    font-size:
        clamp(60px, 7vw, 110px);

    font-weight: 500;

    line-height: 0.92;

    letter-spacing: -5px;

    margin-bottom: 35px;

    text-shadow:
        0 10px 50px
        rgba(0, 0, 0, 0.5);

    animation:
        fall-down
        1s
        ease
        forwards;

    animation-delay: 0.2s;

    opacity: 0;
}


/* =========================
   ТЕКСТ ПОД ЗАГОЛОВКОМ
========================= */

.description {
    color: #b4b5bd;

    font-size: 19px;

    line-height: 1.9;

    letter-spacing: 0.3px;

    margin-bottom: 55px;

    animation:
        fall-down
        1s
        ease
        forwards;

    animation-delay: 0.4s;

    opacity: 0;
}


/* =========================
   КНОПКА
========================= */

.open-button {
    display: inline-block;

    padding: 18px 45px;

    background:
        rgba(10, 11, 18, 0.5);

    color: white;

    border:
        1px solid
        rgba(255, 255, 255, 0.25);

    border-radius: 50px;

    text-decoration: none;

    font-family:
        "Trebuchet MS",
        Arial,
        sans-serif;

    font-size: 16px;

    letter-spacing: 1px;

    cursor: pointer;

    backdrop-filter: blur(6px);

    transition:
        background 0.3s ease,
        color 0.3s ease,
        transform 0.3s ease,
        box-shadow 0.3s ease;

    animation:
        fall-down
        1s
        ease
        forwards;

    animation-delay: 0.6s;

    opacity: 0;
}


/* =========================
   НАВЕДЕНИЕ НА КНОПКУ
========================= */

.open-button:hover {
    background:
        rgba(255, 255, 255, 0.9);

    color: #111111;

    transform:
        translateY(-4px);

    box-shadow:
        0 15px 40px
        rgba(0, 0, 0, 0.3);
}


.open-button:active {
    transform:
        translateY(-1px)
        scale(0.97);
}


/* =========================
   АНИМАЦИЯ ПОЯВЛЕНИЯ
========================= */

@keyframes fall-down {

    0% {
        opacity: 0;

        transform:
            translateY(-80px);

        filter:
            blur(8px);
    }


    70% {
        opacity: 1;

        transform:
            translateY(8px);

        filter:
            blur(0);
    }


    100% {
        opacity: 1;

        transform:
            translateY(0);

        filter:
            blur(0);
    }

}


/* =========================
   МОБИЛЬНАЯ ВЕРСИЯ
========================= */

@media (max-width: 700px) {

    body {
        overflow-y: auto;
    }


    .page {
        padding: 25px 20px;
    }


    h1 {
        font-size:
            clamp(52px, 15vw, 80px);

        letter-spacing:
            -3px;
    }


    .description {
        font-size: 16px;

        line-height: 1.7;
    }


    .small-text {
        font-size: 11px;

        letter-spacing: 2px;
    }

}/* =========================
   БАЗОВЫЕ НАСТРОЙКИ
========================= */

* {
    margin: 0;
    padding: 0;

    box-sizing: border-box;
}


html,
body {
    width: 100%;
    min-height: 100%;
}


body {
    min-height: 100vh;

    background: #0b0c12;

    color: white;

    font-family:
        "Trebuchet MS",
        Arial,
        sans-serif;

    overflow: hidden;
}


/* =========================
   САКУРА НА ВЕСЬ ЭКРАН
========================= */

.sakura-background {

    position: fixed;

    top: -15px;
    left: -15px;

    width: calc(100% + 30px);
    height: calc(100% + 30px);

    background-image:
        url("sakura.jpg");

    background-size: cover;

    background-position: center;

    background-repeat: no-repeat;

    z-index: 0;

    animation:
        sakura-move
        10s
        ease-in-out
        infinite;
}


/* =========================
   ЛЁГКОЕ ПОКАЧИВАНИЕ ФОНА
========================= */

@keyframes sakura-move {

    0% {
        transform:
            scale(1.03)
            translate(0, 0);
    }

    50% {
        transform:
            scale(1.06)
            translate(8px, -6px);
    }

    100% {
        transform:
            scale(1.03)
            translate(0, 0);
    }

}


/* =========================
   ОСНОВНАЯ СТРАНИЦА
========================= */

.page {

    position: relative;

    z-index: 2;

    width: 100%;
    min-height: 100vh;

    display: flex;

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

    padding: 30px;
}


/* =========================
   ЦЕНТРАЛЬНЫЙ КОНТЕНТ
========================= */

.content {

    width: 100%;
    max-width: 900px;

    text-align: center;

    position: relative;

    z-index: 3;
}


/* =========================
   ВЕРХНИЙ ТЕКСТ
========================= */

.small-text {

    color: #9fa1aa;

    font-size: 13px;

    text-transform: uppercase;

    letter-spacing: 4px;

    margin-bottom: 35px;

    animation:
        fall-down
        0.8s
        ease
        forwards;

    opacity: 0;
}


/* =========================
   ГЛАВНЫЙ ЗАГОЛОВОК
========================= */

h1 {

    font-family:
        Georgia,
        "Times New Roman",
        serif;

    font-size:
        clamp(60px, 7vw, 110px);

    font-weight: 500;

    line-height: 0.92;

    letter-spacing: -5px;

    margin-bottom: 35px;

    animation:
        fall-down
        1s
        ease
        forwards;

    animation-delay: 0.2s;

    opacity: 0;

    text-shadow:
        0 10px 50px
        rgba(0, 0, 0, 0.5);
}


/* =========================
   ОПИСАНИЕ
========================= */

.description {

    color: #b4b5bd;

    font-size: 19px;

    line-height: 1.9;

    letter-spacing: 0.3px;

    margin-bottom: 55px;

    animation:
        fall-down
        1s
        ease
        forwards;

    animation-delay: 0.4s;

    opacity: 0;
}


/* =========================
   КНОПКА
========================= */

.open-button {

    padding: 18px 45px;

    background:
        rgba(10, 11, 18, 0.5);

    color: white;

    border:
        1px solid
        rgba(255, 255, 255, 0.25);

    border-radius: 50px;

    font-family:
        "Trebuchet MS",
        Arial,
        sans-serif;

    font-size: 16px;

    letter-spacing: 1px;

    cursor: pointer;

    backdrop-filter:
        blur(6px);

    transition:
        0.3s ease;

    animation:
        fall-down
        1s
        ease
        forwards;

    animation-delay: 0.6s;

    opacity: 0;
}


/* =========================
   КНОПКА — НАВЕДЕНИЕ
========================= */

.open-button:hover {

    background:
        rgba(255, 255, 255, 0.9);

    color: #111;

    transform:
        translateY(-4px);

    box-shadow:
        0 15px 40px
        rgba(0, 0, 0, 0.3);
}


.open-button:active {

    transform:
        scale(0.97);
}


/* =========================
   АНИМАЦИЯ ПОЯВЛЕНИЯ
========================= */

@keyframes fall-down {

    0% {

        opacity: 0;

        transform:
            translateY(-80px);

        filter:
            blur(8px);

    }


    70% {

        opacity: 1;

        transform:
            translateY(8px);

        filter:
            blur(0);

    }


    100% {

        opacity: 1;

        transform:
            translateY(0);

        filter:
            blur(0);

    }

}


/* =========================
   МОБИЛЬНАЯ ВЕРСИЯ
========================= */

@media (max-width: 700px) {

    .page {

        padding:
            25px
            20px;

    }


    h1 {

        font-size:
            clamp(52px, 15vw, 80px);

        letter-spacing:
            -3px;

    }


    .description {

        font-size:
            16px;

        line-height:
            1.7;

    }


    .small-text {

        letter-spacing:
            2px;

    }

}