:root {
    color-scheme: dark;
    --page-bg: #080b10;
    --panel-bg: rgb(14 18 24 / 92%);
    --panel-border: rgb(255 255 255 / 16%);
    --text: #f7f5ef;
    --muted: #bbb6aa;
    --accent: #ffcc66;
    --accent-strong: #ff9f43;
    --control-bg: rgb(9 12 16 / 68%);
    --control-bg-hover: rgb(255 255 255 / 14%);
    --shadow: 0 1rem 3rem rgb(0 0 0 / 40%);
    --safe-top: max(env(safe-area-inset-top), 1rem);
    --safe-bottom: max(env(safe-area-inset-bottom), 1rem);
    --control-size: clamp(3rem, 7vw, 4.4rem);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    min-height: 100%;
    margin: 0;
    overflow: hidden;
    background: var(--page-bg);
    color: var(--text);
}

button,
select,
input {
    font: inherit;
}

button {
    -webkit-tap-highlight-color: transparent;
}

.frame,
.stage,
.media,
.backdrop {
    position: fixed;
    inset: 0;
}

.stage {
    display: grid;
    place-items: center;
    background: var(--page-bg);
}

.backdrop {
    z-index: 0;
    background-position: center;
    background-size: cover;
    filter: blur(1.8rem) saturate(1.08);
    opacity: .32;
    transform: scale(1.08);
    transition: background-image .35s ease, opacity .35s ease;
}

.media {
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    opacity: 0;
    transition: opacity .28s ease;
}

.media.is-active {
    opacity: 1;
}

.media-video {
    background: #000;
}

.controls {
    position: fixed;
    z-index: 4;
    opacity: 0;
    pointer-events: none;
    transform: translateY(.5rem);
    transition: opacity .2s ease, transform .2s ease;
}

.controls.is-visible,
.panel:not([hidden]) ~ .controls {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.topbar {
    top: var(--safe-top);
    left: clamp(1rem, 3vw, 2rem);
    right: clamp(1rem, 3vw, 2rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.identity,
.status {
    min-width: 0;
    border: 1px solid var(--panel-border);
    border-radius: .5rem;
    background: var(--control-bg);
    box-shadow: var(--shadow);
    backdrop-filter: blur(1rem);
}

.identity {
    display: grid;
    gap: .1rem;
    max-width: min(70%, 42rem);
    padding: .65rem .85rem;
}

.folder {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: clamp(.95rem, 2.2vw, 1.15rem);
    font-weight: 700;
}

.counter,
.status,
.hint {
    color: var(--muted);
    font-size: clamp(.78rem, 1.8vw, .9rem);
}

.status {
    max-width: 34%;
    padding: .55rem .75rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.status:empty {
    display: none;
}

.toolbar {
    left: 50%;
    bottom: var(--safe-bottom);
    display: flex;
    gap: clamp(.45rem, 1.6vw, .8rem);
    align-items: center;
    padding: .5rem;
    border: 1px solid var(--panel-border);
    border-radius: .75rem;
    background: var(--control-bg);
    box-shadow: var(--shadow);
    backdrop-filter: blur(1rem);
    transform: translate(-50%, .5rem);
}

.toolbar.is-visible {
    transform: translate(-50%, 0);
}

.icon-button {
    display: grid;
    place-items: center;
    width: var(--control-size);
    aspect-ratio: 1;
    padding: 0;
    border: 0;
    border-radius: .6rem;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}

.icon-button:hover,
.icon-button:focus-visible,
.text-button:hover,
.text-button:focus-visible {
    background: var(--control-bg-hover);
    outline: 2px solid transparent;
}

.icon-button svg {
    width: 52%;
    height: 52%;
    fill: currentColor;
}

.icon-button.is-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    color: #14100a;
}

.icon-pause,
.is-playing .icon-play {
    display: none;
}

.is-playing .icon-pause {
    display: block;
}

.panel {
    position: fixed;
    z-index: 5;
    top: var(--safe-top);
    right: clamp(1rem, 3vw, 2rem);
    width: min(26rem, calc(100% - 2rem));
    max-height: calc(100dvh - var(--safe-top) - var(--safe-bottom));
    overflow: auto;
    padding: clamp(1rem, 3vw, 1.25rem);
    border: 1px solid var(--panel-border);
    border-radius: .75rem;
    background: var(--panel-bg);
    box-shadow: var(--shadow);
    backdrop-filter: blur(1.2rem);
}

.panel[hidden] {
    display: none;
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.panel h1 {
    margin: 0;
    font-size: clamp(1.2rem, 4vw, 1.55rem);
    line-height: 1.1;
}

.panel .icon-button {
    --control-size: 2.75rem;
    flex: 0 0 auto;
}

.field {
    display: grid;
    gap: .55rem;
    margin: 0 0 1rem;
    padding: 0;
    border: 0;
}

.field span,
.field legend {
    color: var(--muted);
    font-size: .88rem;
    font-weight: 700;
}

.field output {
    justify-self: end;
    margin-top: -1.55rem;
    color: var(--accent);
    font-weight: 800;
}

select,
input[type="range"] {
    width: 100%;
}

select {
    min-height: 2.85rem;
    padding: 0 .8rem;
    border: 1px solid var(--panel-border);
    border-radius: .5rem;
    background: #101720;
    color: var(--text);
}

input[type="range"] {
    accent-color: var(--accent);
}

.choice {
    display: flex;
    align-items: center;
    gap: .65rem;
    min-height: 2.4rem;
}

.choice input {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--accent);
}

.panel-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .65rem;
}

.text-button {
    min-height: 2.85rem;
    padding: 0 .85rem;
    border: 1px solid var(--panel-border);
    border-radius: .5rem;
    background: rgb(255 255 255 / 8%);
    color: var(--text);
    cursor: pointer;
}

.text-button[hidden] {
    display: none;
}

.hint {
    margin: .85rem 0 0;
    line-height: 1.45;
}

.loader,
.empty {
    position: relative;
    z-index: 3;
    display: grid;
    gap: .4rem;
    place-items: center;
    padding: 1rem 1.2rem;
    border-radius: .75rem;
    background: var(--control-bg);
    color: var(--muted);
    box-shadow: var(--shadow);
}

.loader[hidden],
.empty[hidden] {
    display: none;
}

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

@media (max-width: 650px) {
    .topbar {
        align-items: flex-start;
    }

    .identity {
        max-width: 100%;
    }

    .status {
        display: none;
    }

    .toolbar {
        width: calc(100% - 1rem);
        justify-content: space-between;
    }

    .panel {
        left: 1rem;
        right: 1rem;
        width: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
    }
}