:root {
    --bg: #0f1115;
    --bg-column: #161920;
    --bg-card: #1d212a;
    --bg-card-hover: #242936;
    --line: #262b36;
    --text: #e6e8ee;
    --muted: #8b93a7;
    --accent: #6ea8fe;
    --danger: #f2777a;
    --topbar-h: 40px;
}

* { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    overflow: hidden;
    -webkit-text-size-adjust: 100%;
}

/* Etiquetas que cambian entre pantalla ancha y estrecha. */
.narrow { display: none; }

body {
    background: var(--bg);
    color: var(--text);
    font: 14px/1.45 -apple-system, "Segoe UI", Roboto, system-ui, sans-serif;
}

/* ---------- Barra superior ---------- */

.topbar {
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 10px;
    border-bottom: 1px solid var(--line);
    background: #12151b;
}

.brand {
    font-weight: 700;
    letter-spacing: .3px;
    color: var(--muted);
}

.search {
    flex: 0 1 320px;
    height: 26px;
    padding: 0 8px;
    border: 1px solid var(--line);
    border-radius: 5px;
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
}

.search:focus { outline: 1px solid var(--accent); }

.status {
    margin-left: auto;
    font-size: 12px;
    color: var(--muted);
}

.btn {
    height: 26px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 5px;
    background: var(--bg-card);
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
}

.btn:hover { background: var(--bg-card-hover); }

.btn-ghost {
    border-color: transparent;
    background: transparent;
    color: var(--muted);
}

.btn-ghost:hover { color: var(--text); background: var(--bg-card); }

/* ---------- Entrar ---------- */

.login-page {
    display: grid;
    place-items: center;
    height: 100vh;
}

.login {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: min(300px, 90vw);
    padding: 24px;
    background: var(--bg-column);
    border: 1px solid var(--line);
    border-radius: 10px;
}

.login-brand {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .3px;
    color: var(--muted);
    text-align: center;
}

.login-error {
    margin: 0;
    font-size: 12.5px;
    color: var(--danger);
}

.login-field {
    height: 34px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}

.login-field:focus { outline: 1px solid var(--accent); }

.login-remember {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    color: var(--muted);
    cursor: pointer;
}

.login-submit {
    height: 34px;
    border: 0;
    border-radius: 6px;
    background: var(--accent);
    color: #0f1115;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.login-submit:hover { filter: brightness(1.08); }

/* ---------- Tablero ---------- */

.board {
    height: calc(100dvh - var(--topbar-h));
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px;
    overflow-x: auto;
    overflow-y: hidden;
}

.column {
    flex: 0 0 288px;
    max-height: 100%;
    display: flex;
    flex-direction: column;
    background: var(--bg-column);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.column-head {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 6px 6px 10px;
    border-bottom: 1px solid var(--line);
}

.column-name {
    flex: 1;
    min-width: 0;
    border: 0;
    padding: 2px 4px;
    background: transparent;
    color: var(--text);
    font: 600 13px/1.2 inherit;
    border-radius: 4px;
}

.column-name:focus { outline: 1px solid var(--accent); background: var(--bg); }

.column-count {
    font-size: 11px;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

.icon-btn {
    width: 22px;
    height: 22px;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--muted);
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
}

.icon-btn:hover { background: var(--bg-card); color: var(--text); }
.icon-btn.danger:hover { color: var(--danger); }

.cards {
    flex: 1;
    min-height: 40px;
    overflow-y: auto;
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cards.drop-target { background: #1a1f2b; }

.card {
    padding: 7px 9px;
    background: var(--bg-card);
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
}

.card:hover { background: var(--bg-card-hover); border-color: var(--line); }
.card.dragging { opacity: .4; }
.card.dimmed { display: none; }

.card-title {
    font-weight: 600;
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-title.empty { color: var(--muted); font-weight: 400; font-style: italic; }

.card-preview {
    margin-top: 2px;
    font-size: 12px;
    color: var(--muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card.marked {
    border-left: 2px solid var(--author);
    padding-left: 7px;
}

.name-chip { color: var(--author, inherit); }

.card-meta {
    margin-top: 3px;
    font-size: 11px;
    color: var(--author, #6d778c);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-meta:empty { display: none; }

.column-foot { padding: 0 6px 6px; }

.add-note {
    width: 100%;
    height: 24px;
    border: 1px dashed var(--line);
    border-radius: 5px;
    background: transparent;
    color: var(--muted);
    font-size: 12px;
    cursor: pointer;
}

.add-note:hover { color: var(--text); border-color: var(--muted); }

/* ---------- Editor ---------- */

.editor {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .6);
    display: grid;
    place-items: center;
    padding: 16px;
}

.editor[hidden] { display: none; }

.editor-panel {
    width: min(1180px, 96vw);
    height: 94dvh;
    display: flex;
    flex-direction: column;
    background: var(--bg-column);
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
}

.editor-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--line);
}

.editor-title {
    flex: 1;
    min-width: 0;
    height: 30px;
    border: 0;
    padding: 0 6px;
    background: transparent;
    color: var(--text);
    font: 600 17px/1.2 inherit;
}

.editor-title:focus { outline: none; }

/* Segunda fila: herramientas de escritura y datos de la nota. */
.editor-tools {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 8px;
    border-bottom: 1px solid var(--line);
    flex-wrap: wrap;
}

.editor-move {
    height: 24px;
    max-width: 150px;
    border: 1px solid var(--line);
    border-radius: 5px;
    background: var(--bg);
    color: var(--muted);
    font-size: 12px;
}

.editor-meta {
    font-size: 12px;
    color: var(--muted);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

/* ---------- Cuerpo de la nota: un texto seguido ---------- */

.editor-body {
    flex: 1;
    overflow-y: auto;
    /* El hueco de abajo deja escribir sin pegarse al borde de la pantalla. */
    padding: 16px 30px 30vh;
}

/* Una fila es una rejilla: columnas de texto con una calle entre medias. */
.row {
    display: grid;
    align-items: stretch;
}

/* Cada tramo va resaltado con el color de quien lo escribió. */
.cell {
    align-self: start;
    min-width: 0;
    border-radius: 5px;
    padding: 3px 8px;
}

.cell.marked {
    background: var(--author-soft);
    box-shadow: inset 2px 0 0 var(--author);
}

.seg-author {
    display: block;
    font-size: 11px;
    line-height: 1.4;
    color: var(--author, #6d778c);
    text-align: right;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.seg-author[hidden] { display: none; }

.seg {
    display: block;
    width: 100%;
    min-width: 0;
    border: 0;
    padding: 0;
    background: transparent;
    color: var(--text);
    font: 15.5px/1.7 ui-monospace, "Cascadia Mono", Consolas, monospace;
    resize: none;
    overflow: hidden;
    tab-size: 4;
}

.seg:focus { outline: none; }

.divider {
    position: relative;
    height: 22px;
    margin: 4px 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    border-top: 1px solid var(--line);
}

/* ---------- Calle entre columnas ---------- */

.vdiv {
    position: relative;
    cursor: col-resize;
}

.vdiv::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    border-left: 1px solid var(--line);
}

.vdiv:hover::before { border-left-color: var(--muted); }

/* Mientras se arrastra la calle no se selecciona texto por accidente. */
body.resizing { cursor: col-resize; user-select: none; }
body.resizing .seg { pointer-events: none; }

/* ---------- Teléfono ---------- */

@media (max-width: 700px) {
    :root { --topbar-h: 48px; }

    /* Las columnas de texto se apilan, como hace Notion en el móvil. */
    .row {
        grid-template-columns: 1fr !important;
        row-gap: 6px;
    }

    .vdiv, .desktop-only { display: none; }
    .wide { display: none; }
    .narrow { display: inline; }

    /* Barra superior: buscador ancho y botones que se puedan tocar. */
    .brand, .status { display: none; }

    .topbar { gap: 6px; padding: 0 8px; }

    .search {
        flex: 1 1 auto;
        min-width: 0;
        height: 34px;
        font-size: 16px; /* menos de 16 px hace que el iPhone acerque la página */
    }

    .btn { height: 34px; padding: 0 12px; font-size: 14px; }

    #me {
        max-width: 5.5em;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        font-size: 13px;
    }

    /* Tablero: una columna por pantalla, con parada en cada una. */
    .board {
        gap: 8px;
        padding: 8px;
        scroll-snap-type: x mandatory;
        scroll-padding: 8px;
    }

    .column {
        flex: 0 0 88%;
        scroll-snap-align: start;
    }

    .column-head { padding: 8px 8px 8px 12px; }
    .column-name { font-size: 15px; }
    .icon-btn { width: 34px; height: 34px; font-size: 16px; }

    .cards { gap: 8px; padding: 8px; }
    .card { padding: 10px 12px; }
    .card-title { font-size: 14px; }
    .card-preview { font-size: 13px; -webkit-line-clamp: 2; }
    .add-note { height: 34px; font-size: 13px; }

    /* Editor a pantalla completa. */
    .editor { padding: 0; }

    .editor-panel {
        width: 100%;
        height: 100dvh;
        border: 0;
        border-radius: 0;
    }

    .editor-head { padding: 4px 6px; gap: 4px; }
    .editor-title { font-size: 16px; height: 36px; }
    .editor-head .btn { padding: 0 10px; }

    /* Todo en una línea: cada píxel de alto es para escribir. */
    .editor-tools {
        padding: 6px 8px;
        gap: 6px;
        flex-wrap: nowrap;
    }

    .editor-tools > * { flex: 0 0 auto; }

    /* El contador y el «guardado» se ven siempre; el autor se recorta. */
    #editor-author {
        flex: 1 1 auto;
        min-width: 0;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .editor-move { height: 30px; max-width: 110px; font-size: 13px; }
    .editor-meta { font-size: 11.5px; }

    .editor-body { padding: 12px 14px 45dvh; }
    .seg { font-size: 16px; line-height: 1.65; }
    .cell { padding: 4px 8px; }

    .login-field { font-size: 16px; height: 40px; }
    .login-submit { height: 40px; }
}

/* ---------- Scrollbars ---------- */

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: #2c3240; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #3a4152; }
::-webkit-scrollbar-track { background: transparent; }