:root {
    color-scheme: dark;

    --bg: #181818;
    --bg-raised: #202020;
    --bg-sunken: #101010;

    --text: #e8e8e8;
    --text-muted: #a0a0a0;

    --border-color: #3f3f3f;

    --accent: #008800;
    --accent-text: #ffffff;

    --slide-bg: #ffffff;
    --slide-border: #000000;
}

body {
    margin: 0;
    font-family: sans-serif;
    background: var(--bg);
    color: var(--text);
}

.container {
    display: grid;
    grid-template-columns: minmax(0, 0.6fr) minmax(0, 40%) minmax(0, 1fr);
    grid-template-rows: 0.03fr 1fr;
    gap: 0;
    grid-auto-flow: row;
    grid-template-areas:
        'menubar menubar menubar'
        'slidelist code preview';
    width: 100vw;
    height: 100vh;
}

.menubar {
    grid-area: menubar;
    background-color: var(--accent);
    color: var(--accent-text);
    display: flex;
    align-items: center;
    padding-left: 1rem;
    padding-right: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.slidelist {
    grid-area: slidelist;
    min-width: 0;
    background-color: var(--bg);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
}

.slide-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 3rem;
    padding: 0 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text);
    font-weight: 600;
}

.add-slide {
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: 1px solid var(--border-color);
    background: var(--bg-raised);
    color: var(--text);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
}

.add-slide:hover,
.add-slide:focus-visible,
.delete-slide:hover,
.delete-slide:focus-visible {
    border-color: var(--accent);
    color: var(--accent-text);
    background: var(--accent);
    outline: none;
}

.slide-list-items {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
}

.code {
    grid-area: code;
    min-width: 0;
    background-color: var(--bg-sunken);
    border-right: 1px solid var(--border-color);
}

.preview {
    grid-area: preview;
    position: relative;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background-color: var(--bg);
}

/* The presentation surface. The runtime mounts every slide inside it. */
.stage {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.stage:focus {
    outline: none;
}

.stage:fullscreen {
    width: 100vw;
    height: 100vh;
}

.compile-error {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1;
    max-height: 40%;
    overflow: auto;
    padding: 0.5rem 0.75rem;
    background-color: #7a1f1f;
    color: #ffffff;
    font-family: monospace;
    font-size: 0.8rem;
    white-space: pre-wrap;
}

.menubar-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-left: auto;
}

.present-button {
    padding: 0.25rem 0.7rem;
    border: 1px solid rgba(255, 255, 255, 0.55);
    background: transparent;
    color: inherit;
    font: inherit;
    cursor: pointer;
    border-radius: 3px;
}

.present-button:hover,
.present-button:focus-visible {
    background: rgba(255, 255, 255, 0.2);
    outline: none;
}

.slide-list-item {
    position: relative;
    display: grid;
    grid-template-columns: 1.25rem minmax(0, 1fr);
    gap: 0.4rem;
    align-items: start;
    min-width: 0;
}

.slide-in-list {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.25rem minmax(0, 1fr);
    gap: 0.4rem;
    align-items: start;
    width: 100%;
    min-width: 0;
    padding: 0.35rem;
    border: 1px solid var(--slide-border);
    background: var(--bg-raised);
    color: var(--text);
    text-align: left;
    cursor: pointer;
}

.slide-in-list:hover,
.slide-in-list:focus-visible {
    border-color: var(--accent);
    outline: none;
}

.slide-list-item.selected .slide-in-list {
    border-color: var(--accent);
    box-shadow: inset 2px 0 0 var(--accent);
}

.slide-number {
    display: block;
    min-height: 1rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    line-height: 1rem;
    text-align: center;
}

.global-slide {
    padding-left: 0.25rem;
    border-left: 2px solid var(--accent);
}

.global-slide .slide-number {
    color: var(--accent);
    font-weight: 700;
}

.slide-in-list img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: var(--slide-bg);
}

.delete-slide {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    display: grid;
    place-items: center;
    width: 1.4rem;
    height: 1.4rem;
    padding: 0;
    border: 1px solid var(--border-color);
    background: var(--bg-raised);
    color: var(--text);
    font-size: 1rem;
    line-height: 1;
    opacity: 0;
    cursor: pointer;
}

.slide-list-item:hover .delete-slide,
.delete-slide:focus-visible {
    opacity: 1;
}

.slide {
    all: initial;
    aspect-ratio: 16/9;
    width: 100%;
    height: auto;
    background-color: white;
}

/* The global slide is shared markup, not a step of the deck: mark the surface
   so it reads as different from a presented slide. */
.slide.global {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}