@keyframes search-indicator {
    0% {
        width: 20%;
        left: 0%;
        transform: translate(-200%, 0);
    }

    33% {
        width: 50%;
        left: 20%;
        transform: translate(0%, 0);
    }

    66% {
        width: 40%;
        left: 60%;
        transform: translate(0%, 0);
    }

    100% {
        width: 10%;
        left: 100%;
        transform: translate(100%, 0);
    }
}

.searching {
    padding: 2rem 0 1rem;
    position: relative;
    overflow: hidden;
    transition: 200ms var(--cubic-ease-out);
}

.searching::after {
    content: '';
    position: absolute;
    bottom: 0;
    background-color: var(--background-text-color);
    height: 0.3rem;
    opacity: 1;
    transition: 100ms;
    animation: search-indicator 1s linear infinite;
}

.searching.hidden {
    padding: 0;
    font-size: 0;
}

.searching.hidden::after {
    opacity: 0;
    height: 0;
}

.error {
    background-color: var(--error-color);
    color: var(--error-text-color);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
    transition: 250ms var(--cubic-ease-out);
}

.error.hidden {
    margin-top: 0;
    padding: 0;
    font-size: 0;
    transition: 150ms var(--cubic-ease-out);
}

/**
 * Screens
 */
.lyrics-image-screen {
    width: 100%;
    overflow: hidden;
    opacity: 1;
    transition: width 500ms ease-in-out, opacity 300ms ease-in-out 200ms;
}

.lyrics-image-screen.hidden {
    opacity: 0;
    width: 0%;
    transition: width 500ms ease-in-out, opacity 300ms;
}

.screen-wrapper {
    width: 100vw;
    min-height: calc(100vh - 8rem);
    padding: 5.5rem 0 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: transform 500ms ease-in-out;
}

.hidden.left .screen-wrapper {
    transform: translate(-100%, 0);
}

/* Screen 1: Search form */
.search-form header {
    text-align: center;
}

.search-form form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    width: 100%;
}

.search-mode-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 80%;
    max-width: 25rem;
}

.search-mode-control label {
    flex: 0 0 auto;
    font-size: 0.85rem;
    font-weight: 600;
}

.search-mode-control select {
    flex: 1;
    min-width: 0;
    padding: 0.75rem;
    border: none;
    border-radius: 0.5rem;
    outline: none;
    cursor: pointer;
}

.search-mode-control select:disabled {
    cursor: wait;
    opacity: 0.6;
}

.search-form form>input {
    padding: 1rem;
    border: none;
    border-radius: 0.5rem;
    outline: none;
    width: 80%;
    max-width: 25rem;
}

.search-form form > button {
    outline: none;
    padding: 1rem;
    font-weight: 600;
    opacity: 1;
    transition: 200ms var(--cubic-ease-out);
}

.search-form form>button:hover {
    cursor: pointer;
    padding: 1rem 3rem;
}

.search-form form>button:disabled {
    font-size: 0;
    padding: 0;
    opacity: 0;
}

/* Screen 2: Song selection */
.search-results .song-selection {
    display: flex;
    justify-content: space-between;
    row-gap: 1.5rem;
    max-width: 50rem;
    padding: 0 1.5rem;
    flex-wrap: wrap;
}

.select-song {
    width: 31%;
    padding: 1rem;
    background-color: var(--surface-light-color);
    border-radius: 0.5rem;
    transition: scale 200ms var(--cubic-ease-out),
        background-color 200ms var(--cubic-ease-out);
}

.select-song:hover {
    cursor: pointer;
    background-color: var(--surface-color);
    scale: 1.05;
}

@media screen and (max-width: 450px) {
    .select-song {
        width: 45%;
    }
}

.select-song img {
    display: block;
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    object-position: center 0;
    opacity: 1;
    border-radius: 0.5rem;
    background-image: url("../icons/album-placeholder.svg");
    background-size: cover;
    background-position: center;
    color: transparent;
    transition: scale 150ms var(--cubic-ease-out),
        aspect-ratio 400ms var(--cubic-ease-out),
        opacity 600ms var(--cubic-ease-out);
}

.select-song:hover img {
    scale: 1.07;
}

/* See the note on .song-info-cover.cover-loaded for why the placeholder is dropped. */
.select-song img.cover-loaded {
    background-image: none;
}

.hidden .select-song img {
    aspect-ratio: 10;
    opacity: 0;
    transition: aspect-ratio 400ms var(--cubic-ease-out) 100ms,
        opacity 400ms var(--cubic-ease-out) 100ms;
}

.select-song .name {
    font-weight: 700;
    padding-top: 0.5rem;
    transition: 300ms var(--cubic-ease-out);
}

.hidden .select-song .name {
    font-size: 0;
    padding-top: 0;
    transition: 300ms var(--cubic-ease-out) 100ms;
}

.select-song .authors {
    font-weight: 600;
    font-size: 0.8rem;
    transition: 300ms var(--cubic-ease-out);
}

.hidden .select-song .authors {
    font-size: 0;
    transition: 300ms var(--cubic-ease-out) 100ms;
}

/* Screen 3: Lines selection */
.song-info-display {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface-light-color);
    border-radius: 0.75rem;
    margin: 0.5rem 0 1rem;
    max-width: 30rem;
    width: 80%;
}

.song-info-cover {
    width: 4rem;
    height: 4rem;
    border-radius: 0.5rem;
    object-fit: cover;
    background-image: url("../icons/album-placeholder.svg");
    background-size: cover;
    background-position: center;
    color: transparent;
}

/*
 * Drop the placeholder once the real cover has loaded. Firefox otherwise bleeds
 * up to ~1px of the placeholder background through the rounded corners, because
 * an <img> with both a border-radius background and rounded replaced content
 * clips the two separately (see .cover-loaded toggles in the controllers).
 */
.song-info-cover.cover-loaded {
    background-image: none;
}

.song-info-text {
    flex: 1;
    overflow: hidden;
}

.song-info-name {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.song-info-artist {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--surface-text-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.lines-selection {
    padding-top: 0.5rem;
    padding-bottom: 5rem;
    width: calc(100% - 3rem);
    max-width: 30rem;
}

.select-line {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 0.5rem;
    background-color: var(--surface-light-color);
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    width: 100%;
    margin: 0 auto 1rem;
    transition: padding 400ms var(--cubic-ease-out),
        margin-bottom 400ms var(--cubic-ease-out),
        font-size 400ms var(--cubic-ease-out), width 400ms var(--cubic-ease-out),
        background-color 200ms var(--cubic-ease-out),
        scale 200ms var(--cubic-ease-out);
}

.select-line:hover {
    cursor: pointer;
    background-color: var(--surface-color);
    scale: 1.05;
}

.hidden .select-line,
.select-line.hidden {
    padding: 0;
    margin-bottom: 0;
    font-size: 0;
    width: 0;
}

.select-line.selected {
    background-color: var(--primary-color);
    color: var(--primary-text-color);
}

/* Screen 4: Final options and download */
.final-options header {
    margin-bottom: 1rem;
}

.final-options .searching {
    margin-bottom: 2rem;
}

.final-options .searching.hidden {
    margin-bottom: 0;
}

.image-creator {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

@media screen and (max-width: 1000px) {
    .image-creator {
        flex-direction: column;
    }
}

.options {
    max-width: 18rem;
    width: 90vw;
}

.tab-selectors {
    display: flex;
    gap: 0.4rem;
    justify-content: flex-start;
}

/* Sized so all four selectors fit one line inside the 18rem options column. */
.tab-selectors > button {
    min-width: 0;
    padding: 0.5rem 0.4rem;
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
}

.tab-selectors > button:hover {
    cursor: pointer;
}

.tab-selectors > button.primary {
    animation: none;
}

.options {
    overflow: visible;
    height: 228px;
    transition: height 200ms;
}

.tabs {
    position: relative;
    min-width: 0;
}

.tabs > .panel {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    position: absolute;
    inset: 0 0 auto 0;
    visibility: hidden;
    transform: translateY(-20%);
    opacity: 0;
    padding: 1rem;
    margin-top: 0.5rem;
    border-radius: 0.5rem;
    background-color: var(--surface-light-color);
    transition: 200ms;
}

.tabs > .panel.selected {
    position: static;
    visibility: visible;
    transform: translateY(0);
    opacity: 1;
}

.color-selection {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    row-gap: 0.8rem;
    width: 100%;
    transition: 200ms var(--cubic-ease-out);
}

.hidden .color-selection {
    padding: 0 1rem;
}

.color-selection>div {
    width: 21%;
    aspect-ratio: 1;
    border-radius: 50%;
    color: transparent;
    transition: 150ms var(--cubic-ease-out);
}

.color-selection>div:hover {
    cursor: pointer;
    scale: 1.1;
}

.hidden .color-selection>div {
    width: 0;
}

.color-selection > .custom-color {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--background-text-color);
    border: 1px solid var(--background-text-color);
}

.custom-color>input {
    height: 0;
    width: 0;
    padding: 0;
    border: none;
}

.custom-color>label:hover {
    cursor: pointer;
}

.switch-container {
    display: flex;
    align-items: center;
    width: 100%;
    transition: 200ms var(--cubic-ease-out);
}

.switch-container:hover {
    cursor: pointer;
}

.hidden .switch-container {
    font-size: 0;
    padding: 0;
}

.switch-container > div:not(.switch) {
    flex: 1;
}

.switch-container .switch {
    position: relative;
    width: 4rem;
    height: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--background-text-color);
    transition: 200ms var(--cubic-ease-out);
}

.hidden .switch-container .switch {
    height: 0;
}

.switch-container .switch::after {
    content: '';
    display: block;
    position: absolute;
    top: 50%;
    left: 0.25rem;
    transform: translate(0, -50%);
    height: 1.5rem;
    aspect-ratio: 1;
    background-color: var(--background-text-color);
    border-radius: 50%;
    transition: 200ms var(--cubic-ease-out);
}

.switch-container.on .switch::after {
    left: calc(100% - 1.75rem);
}

/*
 * An option that only applies while another one is enabled. Collapsing it also
 * cancels the panel's flex gap so no empty row is left behind.
 */
.conditional-option {
    max-height: 2.5rem;
    overflow: hidden;
    opacity: 1;
    transition: 200ms var(--cubic-ease-out);
}

.conditional-option.unavailable {
    max-height: 0;
    margin-top: -1rem;
    opacity: 0;
    pointer-events: none;
}

.slider-container {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    transition: 200ms var(--cubic-ease-out);
}

.hidden .slider-container {
    font-size: 0;
    padding: 0;
}

.slider-container > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slider-container > div span {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.slider-container input[type="range"] {
    height: 0.5rem;
    border-radius: 0.25rem;
    outline: none;
    background: var(--surface-color);
    cursor: pointer;
}

.slider-container input[type="range"]::-webkit-slider-thumb,
.slider-container input[type="range"]::-moz-range-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 1.2rem;
    height: 1.2rem;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: 150ms var(--cubic-ease-out);
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover,
.slider-container input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.1);
}

.color-input-inline {
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.color-input-inline input[type="color"] {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border-radius: 999px;
    border: 1px solid var(--background-text-color);
    background: transparent;
    cursor: pointer;
}

@media screen and (max-width: 450px) {
    .select-song {
        width: 47%;
    }
}

.select-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.select-container > div {
    flex: 2;
}

.select-container > select {
    flex: 1; 
    padding: 0.5rem 0.6rem 0.4rem;
    border: 1px solid var(--background-text-color);
    border-radius: 0.5rem;
    outline: none;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--background-text-color);
    background: transparent;
}

.tag-select-container {
    gap: 0.25rem;
}

/* Presets tab */
.preset-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.preset {
    display: flex;
    gap: 0.25rem;
}

.preset > button {
    font-size: 0.85rem;
    cursor: pointer;
}

.preset > button:hover {
    background-color: var(--surface-color);
}

.preset > .preset-apply {
    display: block;
    flex: 1;
    min-width: 0;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.preset.active > .preset-apply {
    background-color: var(--primary-color);
    color: var(--primary-text-color);
}

.preset > .preset-action {
    padding: 0.5rem 0.4rem;
    font-size: 1.1rem;
}

.preset-save {
    justify-content: center;
    width: 100%;
    font-size: 0.85rem;
    cursor: pointer;
}

.preset-save:hover {
    background-color: var(--surface-color);
}

.tag-select-container > label {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem;
    border-radius: 0.5rem;
    border: 1px solid var(--background-text-color);
    cursor: pointer;
}

.tag-select-container > label:hover {
    background: var(--surface-light-color);
}