:root {
    --tutorial-player-header-height: 52px;
    --tutorial-player-min-width: 360px;
    --tutorial-player-min-height: 260px;
    --tutorial-player-docked-width: min(680px, 48vw);
    --tutorial-player-z-index: 1085;
    --tutorial-player-viewport-gap: 36px;
}

body.tutorial-player-open {
    overflow-x: hidden;
}

.tutorial-player {
    position: fixed;
    z-index: var(--tutorial-player-z-index);
    display: flex;
    flex-direction: column;
    width: var(--tutorial-player-docked-width);
    min-width: var(--tutorial-player-min-width);
    min-height: var(--tutorial-player-min-height);
    overflow: hidden;
    visibility: hidden;
    color: #ffffff;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.22);
    border-radius: 0;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.28);
    opacity: 0;
    transition: transform 220ms ease, opacity 180ms ease, visibility 0s linear 220ms;
}

    .tutorial-player[hidden] {
        display: none;
    }

    .tutorial-player.is-open {
        visibility: visible;
        opacity: 1;
        transition: transform 220ms ease, opacity 180ms ease, visibility 0s;
    }

    /* Docked player */
    .tutorial-player.is-docked {
        top: var(--tutorial-player-viewport-gap);
        right: 0;
        bottom: auto;
        left: auto;
        width: var(--tutorial-player-docked-width);
        height: auto;
        max-width: 100vw;
        max-height: calc(100dvh - (var(--tutorial-player-viewport-gap) * 2));
        min-height: 0;
        border-right: 0;
        border-radius: 0;
        transform: translateX(100%);
    }

        .tutorial-player.is-docked.is-open {
            transform: translateX(0);
        }

        

/* Floating player */
    .tutorial-player.is-floating {
        top: 80px;
        right: auto;
        bottom: auto;
        left: 80px;
        width: 640px;
        height: 412px;
        max-width: none;
        max-height: none;
        border-radius: 5px;
        transform: scale(0.98);
    }

    .tutorial-player.is-floating.is-open {
        transform: scale(1);
    }

.tutorial-player.is-dragging,
.tutorial-player.is-resizing {
    user-select: none;
    transition: none;
}

/* Header */
.tutorial-player__header {
    display: flex;
    flex: 0 0 var(--tutorial-player-header-height);
    align-items: center;
    justify-content: space-between;
    min-height: var(--tutorial-player-header-height);
    padding: 0 10px 0 18px;
    color: #ffffff;
    background: #213b34;
}

.tutorial-player.is-floating .tutorial-player__header {
    cursor: move;
    touch-action: none;
}

.tutorial-player__title {
    min-width: 0;
    margin: 0;
    padding-right: 16px;
    overflow: hidden;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.25;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tutorial-player__actions {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 4px;
}

.tutorial-player__action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    min-height: 36px;
    padding: 5px 9px;
    color: #ffffff;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 3px;
    font: inherit;
    font-size: 0.82rem;
    line-height: 1;
    cursor: pointer;
}

    .tutorial-player__action:hover,
    .tutorial-player__action:focus-visible {
        color: #ffffff;
        background: rgba(255, 255, 255, 0.14);
        border-color: rgba(255, 255, 255, 0.35);
    }

    .tutorial-player__action:focus-visible {
        outline: 2px solid #ffffff;
        outline-offset: 1px;
    }

.tutorial-player__close-button {
    width: 38px;
    padding-right: 0;
    padding-left: 0;
    font-size: 1.1rem;
}

.tutorial-player.is-docked .tutorial-player__dock-button {
    display: none;
}

.tutorial-player.is-floating .tutorial-player__detach-button {
    display: none;
}

/* Video area */
.tutorial-player__body {
    position: relative;
    display: flex;
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
    min-height: 0;
    align-items: center;
    justify-content: center;
    padding: 0;
    overflow: hidden;
    background: #213b34;
}

/*
 * Reserve the full 16:9 area immediately in docked mode,
 * before the browser has loaded the MP4 metadata.
 */
.tutorial-player.is-docked .tutorial-player__body {
    flex: 0 0 auto;
    width: 100%;
    aspect-ratio: 16 / 9;
    max-height: calc( 100dvh - (var(--tutorial-player-viewport-gap) * 2) - var(--tutorial-player-header-height) );
}

/*
 * Pin every tutorial video to the full player body.
 *
 * Keep the video in the rendered layout while Chromium initializes
 * its native controls. Opacity hides the video visually without
 * removing the browser-managed controls from the paint/layout process.
 */
.tutorial-player__body video {
    position: absolute;
    inset: 0;
    display: block;
    width: 100% !important;
    height: 100% !important;
    min-width: 100%;
    min-height: 100%;
    max-width: none;
    max-height: none;
    margin: 0;
    padding: 0;
    opacity: 0;
    pointer-events: none;
    background: #213b34;
    object-fit: contain;
    transition: opacity 60ms ease-out;
}

    .tutorial-player__body video.is-ready {
        opacity: 1;
        pointer-events: auto;
    }


/* Resize handles */
.tutorial-player__resize-handle {
    position: absolute;
    z-index: 3;
    display: none;
    touch-action: none;
}

.tutorial-player.is-floating .tutorial-player__resize-handle {
    display: block;
}

.tutorial-player__resize-handle--n {
    top: -4px;
    right: 10px;
    left: 10px;
    height: 10px;
    cursor: ns-resize;
}

.tutorial-player__resize-handle--e {
    top: 10px;
    right: -4px;
    bottom: 10px;
    width: 10px;
    cursor: ew-resize;
}

.tutorial-player__resize-handle--s {
    right: 10px;
    bottom: -4px;
    left: 10px;
    height: 10px;
    cursor: ns-resize;
}

.tutorial-player__resize-handle--w {
    top: 10px;
    bottom: 10px;
    left: -4px;
    width: 10px;
    cursor: ew-resize;
}

.tutorial-player__resize-handle--ne {
    top: -4px;
    right: -4px;
    width: 16px;
    height: 16px;
    cursor: nesw-resize;
}

.tutorial-player__resize-handle--se {
    right: -4px;
    bottom: -4px;
    width: 18px;
    height: 18px;
    cursor: nwse-resize;
}

.tutorial-player__resize-handle--sw {
    bottom: -4px;
    left: -4px;
    width: 16px;
    height: 16px;
    cursor: nesw-resize;
}

.tutorial-player__resize-handle--nw {
    top: -4px;
    left: -4px;
    width: 16px;
    height: 16px;
    cursor: nwse-resize;
}

/* Mobile backdrop */
.tutorial-player-backdrop {
    position: fixed;
    inset: 0;
    z-index: calc(var(--tutorial-player-z-index) - 1);
    display: none;
    background: rgba(0, 0, 0, 0.18);
}

    .tutorial-player-backdrop.is-visible {
        display: block;
    }

/* Tablet */
@media (max-width: 991.98px) {
    :root {
        --tutorial-player-docked-width: min(620px, 70vw);
    }
}

/* Mobile */
@media (max-width: 767.98px) {
    :root {
        --tutorial-player-min-width: 0;
        --tutorial-player-min-height: 0;
        --tutorial-player-docked-width: 100vw;
    }

    .tutorial-player,
    .tutorial-player.is-floating,
    .tutorial-player.is-docked {
        top: auto !important;
        right: 0 !important;
        bottom: 0 !important;
        left: 0 !important;
        width: 100vw !important;
        height: min(72dvh, 620px) !important;
        min-height: 0;
        max-width: 100vw;
        max-height: 100dvh;
        border-right: 0;
        border-bottom: 0;
        border-left: 0;
        border-radius: 0;
        transform: translateY(100%);
    }

        .tutorial-player.is-open,
        .tutorial-player.is-floating.is-open,
        .tutorial-player.is-docked.is-open {
            transform: translateY(0);
        }

        .tutorial-player.is-docked .tutorial-player__body,
        .tutorial-player.is-docked .tutorial-player__body video {
            height: 100%;
            max-height: 100%;
        }

    .tutorial-player__header {
        cursor: default !important;
    }

    .tutorial-player__dock-button,
    .tutorial-player__detach-button,
    .tutorial-player__resize-handle {
        display: none !important;
    }

    .tutorial-player__action-label {
        display: none;
    }

    .tutorial-player-backdrop.is-visible {
        display: block;
    }
}

@media (prefers-reduced-motion: reduce) {
    .tutorial-player {
        transition: none;
    }
}