/* =========================================================
   Premium PDF Flipbox — estilos frontend (v2.4)
   ========================================================= */

.ppf-flipbox,
.ppf-flipbox *,
.ppf-flipbox *::before,
.ppf-flipbox *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ---------- Miniatura (cover) ---------- */
.ppf-flipbox {
    position: relative;
    width: 100%;
    max-width: 100%;
    display: grid;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1;
}

.ppf-flipbox > .ppf-cover,
.ppf-flipbox > .ppf-pdf {
    grid-area: 1 / 1;
    position: relative;
}

/* La miniatura es SOLO la imagen: sin fondo, sin sombra, sin bordes redondeados.
   Si el tema del sitio añade un marco al widget no podemos tocarlo desde aquí. */
.ppf-cover {
    cursor: pointer;
    overflow: hidden;
    background: transparent;
    transition: transform .2s ease, opacity .3s ease, filter .2s ease;
    line-height: 0;
}

.ppf-cover:hover { transform: scale(1.015); filter: brightness(1.03); }

.ppf-cover img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
    background: transparent;
}

.ppf-cover-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 220px;
    padding: 36px 20px;
    background: linear-gradient(135deg, #f0f4ff 0%, #fafbff 100%);
    color: #556;
    text-align: center;
    line-height: 1.3;
}
.ppf-cover-placeholder svg { margin-bottom: 14px; opacity: .35; }
.ppf-cover-placeholder span { font-size: 14px; font-weight: 500; max-width: 240px; word-break: break-word; }

.ppf-flipbox.is-flipped .ppf-cover { opacity: .5; }

/* ---------- Visor PDF (modal a pantalla completa) ---------- */
.ppf-pdf { display: none; }

.ppf-flipbox.is-flipped .ppf-pdf {
    position: fixed;
    inset: 0;
    width: 100vw;
    /* Altura dinámica: 100dvh con fallback. En móvil el JS la fija con window.innerHeight */
    height: 100vh;
    height: 100dvh;
    z-index: 99999;
    background: rgba(15, 15, 20, .94);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: 10px 10px 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    animation: ppf-fadein .25s ease;
    overscroll-behavior: contain;
    /* Permitimos pan pero bloqueamos el zoom nativo del navegador:
       el pinch lo capturamos nosotros y lo usamos para zoom del PDF. */
    touch-action: pan-x pan-y;
}
@keyframes ppf-fadein { from { opacity: 0; } to { opacity: 1; } }

/* Zona del canvas: ocupa toda la altura disponible menos la toolbar */
.ppf-flipbox.is-flipped .ppf-canvas-wrap {
    flex: 1 1 auto;
    width: 100%;
    min-height: 0;
    background: #fff;
    border-radius: 4px;
    overflow: auto;
    display: grid;
    /* "safe center" evita que al ampliar el doc se pierda la parte superior:
       si el contenido es mayor que el contenedor, se alinea al inicio y deja
       el scroll funcionar desde arriba. */
    place-content: safe center;
    padding: 0;
}

.ppf-canvas-wrap:not([data-modal]) { width: 100%; position: relative; }

.ppf-canvas {
    display: block;
    background: #fff;
}

/* ---------- Toolbar inferior ---------- */
.ppf-toolbar {
    flex: 0 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 12px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 14px rgba(0, 0, 0, .35);
    user-select: none;
    -webkit-user-select: none;
}

.ppf-toolbar-left,
.ppf-toolbar-right { display: flex; align-items: center; gap: 6px; }

.ppf-toolbar button,
.ppf-toolbar .ppf-download {
    display: inline-flex;
    align-items: center; justify-content: center;
    min-width: 34px; height: 34px;
    padding: 0 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    background: #fff;
    color: #333;
    font-size: 16px; font-weight: 600; line-height: 1;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, border-color .15s;
}
.ppf-toolbar button:hover:not(:disabled),
.ppf-toolbar button:focus:not(:disabled),
.ppf-toolbar .ppf-download:hover,
.ppf-toolbar .ppf-download:focus {
    background: #eee; border-color: #aaa; outline: none;
}
.ppf-toolbar button:disabled { opacity: .35; cursor: not-allowed; }

.ppf-toolbar button.ppf-close-btn {
    font-size: 14px; color: #888;
    border-color: transparent; background: transparent;
}
.ppf-toolbar button.ppf-close-btn:hover { color: #c00; background: #fff0f0; }

.ppf-page-info {
    font-size: 13px; color: #555;
    font-variant-numeric: tabular-nums;
    white-space: nowrap; padding: 0 4px;
}
.ppf-zoom-level {
    font-size: 12px; color: #666;
    min-width: 44px; text-align: center;
    font-variant-numeric: tabular-nums;
}

/* Spinner */
.ppf-flipbox.is-loading .ppf-canvas-wrap::after {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    width: 36px; height: 36px;
    margin: -18px 0 0 -18px;
    border: 3px solid #ddd;
    border-top-color: #555;
    border-radius: 50%;
    animation: ppf-spin .8s linear infinite;
}
@keyframes ppf-spin { to { transform: rotate(360deg); } }

body.ppf-modal-open { overflow: hidden; }

/* Cuando el visor está en fullscreen nativo del navegador */
.ppf-pdf:fullscreen { padding: 10px 10px 8px; }
.ppf-pdf:-webkit-full-screen { padding: 10px 10px 8px; }

/* Cursor grab/grabbing para arrastrar cuando el zoom > 1 */
.ppf-canvas.ppf-pannable { cursor: grab; }
.ppf-canvas.ppf-panning  { cursor: grabbing; }

/* Permite scroll táctil fluido dentro del canvas-wrap, pero sin pinch nativo */
.ppf-flipbox.is-flipped .ppf-canvas-wrap {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    touch-action: pan-x pan-y;
}
.ppf-flipbox.is-flipped .ppf-canvas {
    touch-action: pan-x pan-y;
}

/* ---------- Móvil / tablet ---------- */
@media (max-width: 900px) {
    .ppf-flipbox.is-flipped .ppf-pdf {
        padding: 6px 6px 8px;
        gap: 6px;
    }
    .ppf-flipbox.is-flipped .ppf-canvas-wrap {
        border-radius: 2px;
    }
    .ppf-toolbar {
        padding: 6px 8px;
        gap: 4px;
        flex-wrap: nowrap;
        overflow: hidden;
    }
    .ppf-toolbar-left,
    .ppf-toolbar-right { gap: 4px; }
    .ppf-toolbar button,
    .ppf-toolbar .ppf-download {
        min-width: 40px;
        height: 40px;
        font-size: 16px;
        padding: 0 8px;
    }
    .ppf-page-info { font-size: 13px; }
    .ppf-zoom-level { font-size: 12px; min-width: 38px; }
    /* Ocultar el nivel numérico si queda muy apretado */
    @media (max-width: 380px) {
        .ppf-zoom-level { display: none; }
    }
}

/* Cursor pointer en móvil sólo en los botones */
@media (hover: none) {
    .ppf-cover:hover { transform: none; filter: none; }
}