html {
    background-color: var(--bg);
}

html.theme-boot,
html.theme-boot * {
    transition: none !important;
}

:root {
    --bg: #ffffff;
    --border: rgba(0, 0, 0, 0.12);
    --card: #ffffff;
    --caret: #3842b4;
    --editor-font-size: 15px;
    --editor-line-height: 1.6;
    --editor-pad: 6px 4px 4px;
    --gap: 18px;
    --hl-comment: #9ca3af;
    --hl-done: #6b7280;
    --hl-hash: #4574f6;
    --hl-minus: #dc2f2f;
    --hl-plus: #17a54b;
    --hl-quote: #9176bd;
    --hl-star: #ca8a04;
    --icon-btn-size: 64px;
    --icon-size: 20px;
    --muted: #4b4b4b;
    --radius: 12px;
    --ring: rgba(0, 0, 0, 0.22);
    --sel-bg-blur: rgba(151, 151, 151, 0.179);
    --sel-bg-focused: rgba(72, 126, 250, 0.451);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --text: #111111;
    --theme-duration: 220ms;
    --theme-ease: ease;
    color-scheme: light dark;
}

[data-theme="dark"] {
    --bg: #000000;
    --border: rgba(255, 255, 255, 0.14);
    --card: #212225;
    --caret: #e5ce67;
    --hl-comment: #7a7f87;
    --muted: #cfcfcf;
    --ring: rgba(255, 255, 255, 0.22);
    --sel-bg-blur: rgba(192, 192, 192, 0.127);
    --sel-bg-focused: rgba(215, 192, 92, 0.48);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
    --text: #f5f5f5;
}

* {
    box-sizing: border-box;
}

body,
html {
    height: 100%;
}

body {
    margin: 0;
    background-color: var(--bg);
    color: var(--text);
    font-family: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
        Consolas, "Liberation Mono", monospace;
    transition: background-color var(--theme-duration) var(--theme-ease),
        color var(--theme-duration) var(--theme-ease);
}

.app {
    max-width: 1200px;
    margin: 0 auto;
    padding: 28px;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--gap);
    min-height: 100%;
}

.card,
.editor-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: background-color var(--theme-duration) var(--theme-ease),
        border-color var(--theme-duration) var(--theme-ease),
        box-shadow var(--theme-duration) var(--theme-ease);
}

.editor-card {
    padding: 18px;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 56px);
}

.editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.title {
    margin: 0 0 10px 2px;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.2px;
    opacity: 0.55;
    -webkit-user-select: none;
    user-select: none;
    transition: color var(--theme-duration) var(--theme-ease);
}

.title[contenteditable="true"] {
    caret-color: var(--caret);
}

.title[contenteditable="true"]:focus {
    outline: 2px solid var(--ring);
    outline-offset: 4px;
    border-radius: 1px;
}

.editor-divider {
    height: 1px;
    background-color: rgba(0, 0, 0, 0.12);
    margin: 6px 0 14px;
    transition: background-color var(--theme-duration) var(--theme-ease);
}

[data-theme="dark"] .editor-divider {
    background-color: rgba(255, 255, 255, 0.16);
}

.editor-wrap {
    position: relative;
    flex: 1;
    min-height: 0;
}

.editor,
.editor-highlight {
    position: absolute;
    inset: 0;
    border: 0;
    font-family: inherit;
    font-size: var(--editor-font-size);
    line-height: var(--editor-line-height);
    padding: var(--editor-pad);
    tab-size: 4;
}

.editor-highlight {
    margin: 0;
    overflow: auto;
    background: 0 0;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
    color: var(--text);
    pointer-events: none;
    caret-color: transparent;
    transition: color var(--theme-duration) var(--theme-ease);
}

.editor {
    width: 100%;
    height: 100%;
    resize: none;
    outline: 0;
    background-color: transparent;
    color: transparent;
    caret-color: var(--caret);
    -webkit-text-fill-color: transparent;
}

.editor::placeholder {
    color: var(--muted);
    opacity: 0.85;
    -webkit-text-fill-color: var(--muted);
}

.editor:focus::selection {
    background: var(--sel-bg-focused);
}

.editor:focus::-moz-selection {
    background: var(--sel-bg-focused);
}

.editor:not(:focus)::selection {
    background: var(--sel-bg-blur);
}

.editor:not(:focus)::-moz-selection {
    background: var(--sel-bg-blur);
}

.tok-hash {
    color: var(--hl-hash);
    font-weight: 500;
}

.tok-minus {
    color: var(--hl-minus);
}

.tok-plus {
    color: var(--hl-plus);
}

.tok-done {
    color: var(--hl-done);
}

.tok-star {
    color: var(--hl-star);
    font-weight: 500;
}

.tok-quote {
    color: var(--hl-quote);
    font-style: italic;
}

.tok-comment {
    color: var(--hl-comment);
}

.tok-space {
    opacity: 0.15;
    transform: scale(0.85);
    display: inline-block;
    -webkit-user-select: none;
    user-select: none;
}

.side {
    display: grid;
    gap: var(--gap);
    align-content: start;
}

.stats-card {
    padding: 16px;
}

.card-title {
    margin: 0 0 10px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.2px;
    transition: color var(--theme-duration) var(--theme-ease);
}

.stat-row {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 8px 0;
    border-top: 1px solid var(--border);
    transition: border-color var(--theme-duration) var(--theme-ease);
}

.stat-label,
.stat-value {
    color: var(--muted);
    transition: color var(--theme-duration) var(--theme-ease);
}

.stat-value {
    color: var(--text);
    font-weight: 500;
}

.actions-card {
    padding: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.icon-btn {
    width: var(--icon-btn-size, 64px);
    height: var(--icon-btn-size, 64px);
    border-radius: 8px;
    border: 1px solid var(--border);
    background-color: transparent;
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: transform 120ms ease,
        border-color var(--theme-duration) var(--theme-ease);
}

.icon-btn img {
    width: var(--icon-size, 20px);
    height: var(--icon-size, 20px);
    transition: filter var(--theme-duration) var(--theme-ease),
        opacity 120ms ease;
}

.icon-btn:hover {
    transform: translateY(-1px);
    border-color: var(--ring);
}

.icon-btn:active {
    transform: translateY(0);
}

.icon-btn:active img {
    opacity: 0.45;
}

.icon-btn:focus-visible {
    outline: 2px solid var(--ring);
    outline-offset: 2px;
}

[data-theme="dark"] .icon-btn img {
    filter: invert(1);
}

.upload-btn img {
    transform: rotate(180deg);
}

.noscript,
.toast {
    border-radius: 12px;
    border: 1px solid var(--border);
}

.toast {
    position: fixed;
    z-index: 9999;
    padding: 8px 12px;
    background-color: var(--card);
    color: var(--text);
    box-shadow: var(--shadow);
    font-size: 12px;
    line-height: 1.2;
    letter-spacing: 0.2px;
    opacity: 0;
    transform: translateY(4px);
    pointer-events: none;
    transition: opacity 140ms ease, transform 140ms ease;
    top: 8px;
    left: 8px;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.noscript {
    margin-top: 12px;
    padding: 10px 12px;
    background: rgba(127, 127, 127, 0.08);
    color: var(--muted);
    font-size: 13px;
}

.actions-card,
.editor-card,
.stats-card {
    opacity: 0;
    will-change: transform, opacity;
}

.editor-card {
    transform: translateX(-256px) scale(0.85);
    transition: transform 700ms cubic-bezier(0.16, 1, 0.3, 1),
        opacity 500ms ease;
}

.stats-card {
    transform: translateX(128px) scale(1.5);
    transition: transform 1000ms cubic-bezier(0.16, 1, 0.3, 1),
        opacity 1000ms ease;
}

.actions-card {
    transform: translateY(256px) scale(1.2);
    transition: transform 1400ms cubic-bezier(0.16, 1, 0.3, 1),
        opacity 1000ms ease;
}

body.page-ready .editor-card,
body.page-ready .stats-card {
    transform: translateX(0) scale(1);
    opacity: 1;
}

body.page-ready .stats-card {
    opacity: 0.8;
}

body.page-ready .actions-card {
    transform: translateY(0) scale(1);
    opacity: 0.8;
}

body.page-ready .actions-card:hover,
body.page-ready .editor-card:hover,
body.page-ready .stats-card:hover {
    transform: scale(1.005);
    opacity: 1;
}

@media (max-width: 980px) {
    .app {
        grid-template-columns: 1fr;
    }

    .side {
        order: 2;
    }

    .actions-card,
    .stats-card {
        justify-self: center;
        max-width: 100%;
    }

    .stats-card {
        width: 80%;
    }

    .actions-card {
        width: 320px;
    }
}

@media (max-width: 540px) {
    :root {
        --gap: 8px;
        --editor-font-size: 14px;
    }

    .app {
        padding: 8px;
    }

    .actions-card,
    .editor-card,
    .stats-card {
        padding: 8px;
        border-radius: 8px;
    }

    .title {
        margin-bottom: 4px;
    }

    .editor-divider {
        margin: 8px 0 4px;
    }
}

@media (prefers-reduced-motion: reduce) {
    :root {
        --theme-duration: 0ms;
    }

    * {
        transition: none !important;
        scroll-behavior: auto !important;
    }

    .actions-card,
    .editor-card,
    .stats-card {
        transform: none;
        opacity: 1;
        transition: none;
        will-change: auto;
    }
}