/* ==================== KEYFRAMES ==================== */

@keyframes appear-up-smooth {
    0% {
        transform: translateY(100%);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes disappear-down {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateY(100%);
        opacity: 0;
    }
}

@keyframes underline-grow {
    0% {
        transform: scaleX(0);
        opacity: 1;
    }
    100% {
        transform: scaleX(1);
        opacity: 1;
    }
}

@keyframes underline-shrink {
    0% {
        transform: scaleX(1);
        opacity: 1;
    }
    100% {
        transform: scaleX(0);
        opacity: 0;
    }
}

@keyframes button-fade-in {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}


/* ==================== LOADER BASE ==================== */

.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background-color: var(--color-main-default);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 1s ease-out;
}


/* ==================== TEXT CONTAINER ==================== */

.text-container {
    justify-content: center;
    color: var(--neutral-default);
    white-space: nowrap;
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    visibility: hidden;
    opacity: 0;
}

.text-container.is-visible {
    visibility: visible;
    opacity: 1;
}


/* ==================== LETTER ==================== */

.letter {
    display: inline-block;
    overflow: hidden;
}

.letter span {
    display: block;
    text-transform: unset;
    transform: translateY(100%);
    opacity: 0;
    animation-fill-mode: forwards;
    animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1.0);
    animation-name: appear-up-smooth, disappear-down;
    animation-duration: 0.4s, 0.4s;
    animation-delay: var(--appear-delay, 0s), var(--disappear-delay, 0s);
    font-size: var(--text-title-xl-size);
}


/* ==================== UNDERLINE WORD ==================== */

.underline-word {
    position: relative;
    display: inline-block;
}

.underline-bar {
    position: absolute;
    left: 0;
    bottom: -0.1em;
    width: 100%;
    height: 0.2rem;
    background-color: var(--color-secondary);
    transform-origin: left;
    transform: scaleX(0);
    opacity: 0;
    animation-name: underline-grow, underline-shrink;
    animation-duration: 0.6s, 0.3s;
    animation-timing-function: ease-out, ease-in;
    animation-fill-mode: forwards, forwards;
    animation-delay: var(--underline-appear-delay, 0s), var(--underline-disappear-delay, 0s);
}


/* ==================== MEDIA QUERIES ==================== */

@media (max-width: 1024px) {
    .text-container {
        white-space: normal;
        text-align: center;
        padding: 0 1rem;
    }
}

@media (max-width: 600px) {
    .text-container {
        white-space: normal;
        text-align: center;
        width: 100%;
        box-sizing: border-box;
    }
    .skip-animation-btn {
        bottom: 1rem;
        right: 50%;
        transform: translateX(50%);
    }
}


/* ==================== EXIT SEQUENCE ==================== */

.exit-sequence .letter span {
    animation: disappear-down 0.4s cubic-bezier(0.6, 0.05, 0.73, 0.75) forwards !important;
    animation-delay: 0s !important;
}

.exit-sequence .underline-bar {
    animation: underline-shrink 0.3s ease-in forwards !important;
    animation-delay: 0s !important;
}

.loader.exit-sequence {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}