/**
 * Estilos del bloque de Citaciones y Modal para OJS 3.5
 * Integración exacta con los bloques nativos del tema Metabiblioteca
 */

:root {
    --citations-primary: var(--metabiblioteca-color-01, #b91c1c);
    --citations-secondary: var(--metabiblioteca-color-02, #991b1b);
    --citations-text-on-primary: var(--metabiblioteca-color-04, #ffffff);
    --citations-card-bg: var(--metabiblioteca-color-05, #ffffff);
    --citations-border-color: rgba(148, 163, 184, 0.25);
    --citations-radius: var(--metabiblioteca-radius-ui, 0.375rem);
}

/* ==========================================================================
   Contenedor Principal (Estructura de Widget Metabiblioteca)
   ========================================================================== */
.metabiblioteca-widget.citations-block-card {
    background-color: #ffffff;
    border: 1px solid var(--citations-border-color);
    border-radius: var(--citations-radius);
    margin: 0 0 1.5rem 0;
    padding: 0;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    font-family: var(--metabiblioteca-font-01, inherit);
}

/* Cabecera idéntica a los demás bloques de la plantilla (Color Sólido, Sin Degradado) */
.metabiblioteca-widget.citations-block-card > .metabiblioteca-widget__title,
.citations-block-card .citations-block-title {
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    width: 100%;
    min-height: 2.05rem;
    margin: 0;
    padding: 0.55rem 0.8rem;
    border: 0;
    border-radius: var(--citations-radius) var(--citations-radius) 0 0;
    background-color: var(--citations-primary) !important;
    background-image: none !important;
    color: var(--citations-text-on-primary) !important;
    font-size: 0.86rem;
    font-weight: 800;
    line-height: 1.2;
    text-align: center;
    letter-spacing: 0;
    text-decoration: none;
}

/* Cuerpo del bloque */
.metabiblioteca-widget.citations-block-card > .metabiblioteca-widget__body,
.citations-block-card .citations-block-body {
    padding: 1.25rem 1rem;
}

.citations-providers-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.citations-provider-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

/* ==========================================================================
   Botones de Proveedor (Mismo Diseño, Color Sólido, Sin Degradado)
   ========================================================================== */
html.metabiblioteca-theme body .citations-block-card button.citations-pill-btn,
html.metabiblioteca-theme body .citations-block-card a.citations-pill-btn,
button.citations-pill-btn,
a.citations-pill-btn,
.citations-pill-btn {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.4rem !important;
    width: 100% !important;
    max-width: 100% !important;
    min-height: 2.35rem !important;
    box-sizing: border-box !important;
    margin: 0 auto !important;
    padding: 0.55rem 1.25rem !important;
    background-color: var(--citations-primary) !important;
    background-image: none !important;
    color: var(--citations-text-on-primary, #ffffff) !important;
    border: none !important;
    border-radius: var(--metabiblioteca-radius-ui, 6px) !important;
    -webkit-border-radius: var(--metabiblioteca-radius-ui, 6px) !important;
    font-family: inherit !important;
    font-size: 0.9rem !important;
    font-weight: 700 !important;
    line-height: 1.3 !important;
    text-align: center !important;
    text-decoration: none !important;
    cursor: pointer !important;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.12) !important;
    transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease !important;
    outline: none !important;
}

html.metabiblioteca-theme body .citations-block-card button.citations-pill-btn:hover,
html.metabiblioteca-theme body .citations-block-card a.citations-pill-btn:hover,
button.citations-pill-btn:hover,
a.citations-pill-btn:hover,
.citations-pill-btn:hover {
    background-color: var(--citations-secondary) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18) !important;
    color: var(--citations-text-on-primary, #ffffff) !important;
}

html.metabiblioteca-theme body .citations-block-card button.citations-pill-btn:active,
html.metabiblioteca-theme body .citations-block-card a.citations-pill-btn:active,
.citations-pill-btn:active {
    transform: translateY(0) !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15) !important;
}

html.metabiblioteca-theme body .citations-block-card .citations-pill-btn *,
.citations-pill-btn *,
.citations-pill-btn .citations-count-val,
.citations-pill-btn strong,
.citations-pill-btn span,
.citations-pill-btn .citations-label-text {
    color: var(--citations-text-on-primary, #ffffff) !important;
    font-family: inherit !important;
    text-decoration: none !important;
    white-space: normal !important;
}

.citations-pill-btn .citations-count-val,
.citations-pill-btn strong {
    font-weight: 800 !important;
    font-size: 1.05em !important;
}

/* Logotipos centrados */
.citations-provider-logo {
    margin-top: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.citations-provider-logo:hover {
    opacity: 0.85;
    transform: scale(1.02);
}

.citations-provider-logo img {
    max-width: 140px;
    max-height: 46px;
    height: auto;
    object-fit: contain;
    display: block;
}

/* Spinner de carga */
.citations-loader {
    margin: 1.25rem auto;
    width: 32px;
    height: 32px;
    border: 3px solid rgba(148, 163, 184, 0.2);
    border-radius: 50%;
    border-top: 3px solid var(--citations-primary);
    animation: citationsSpin 0.9s linear infinite;
}

@keyframes citationsSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
   Modal Interactivo (Cubre el 100% de la Pantalla Completa / Viewport)
   ========================================================================== */
.citations-modal {
    display: none !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    margin: 0 !important;
    padding: 1.25rem !important;
    box-sizing: border-box !important;
    z-index: 9999999 !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: hidden !important;
}

.citations-modal.is-open {
    display: flex !important;
}

.citations-modal__backdrop {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(15, 23, 42, 0.65) !important;
    backdrop-filter: blur(4px) !important;
    -webkit-backdrop-filter: blur(4px) !important;
    z-index: 1 !important;
    animation: citationsFadeIn 0.2s ease-out;
}

.citations-modal__dialog {
    position: relative !important;
    z-index: 2 !important;
    width: 100% !important;
    max-width: 600px !important;
    max-height: 85vh !important;
    margin: auto !important;
    display: flex !important;
    flex-direction: column !important;
    animation: citationsScaleIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.citations-modal__content {
    position: relative;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    max-height: 85vh;
}

/* Botón cerrar X */
.citations-modal__close {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    background: #f1f5f9;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: #64748b;
    cursor: pointer;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 3;
    padding: 0;
}

.citations-modal__close:hover {
    background: #e2e8f0;
    color: #0f172a;
    transform: scale(1.08);
}

/* Encabezado del modal con logo */
.citations-modal__header {
    padding: 1.75rem 1.5rem 0.5rem 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.citations-modal__logo {
    max-width: 160px;
    max-height: 48px;
    object-fit: contain;
    height: auto;
    display: block;
}

/* Separador horizontal */
.citations-modal__divider {
    border: 0;
    border-top: 1px solid #e2e8f0;
    margin: 0.5rem 1.5rem 0 1.5rem;
}

/* Cuerpo con listado de citas */
.citations-modal__body {
    padding: 1.25rem 1.5rem 1.5rem 1.5rem;
    overflow-y: auto;
    max-height: calc(85vh - 120px);
}

/* Scrollbar estilizada */
.citations-modal__body::-webkit-scrollbar {
    width: 6px;
}
.citations-modal__body::-webkit-scrollbar-track {
    background: #f8fafc;
}
.citations-modal__body::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 9999px;
}
.citations-modal__body::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Elemento individual de cita */
.citations-modal__item {
    padding: 0.85rem 0 1rem 0;
    border-bottom: 1px solid #e2e8f0;
    font-size: 0.925rem;
    line-height: 1.55;
    color: #334155;
}

.citations-modal__item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.citations-modal__authors {
    color: #1e293b;
}

.citations-modal__date {
    color: #475569;
    margin-left: 0.25rem;
}

.citations-modal__title {
    margin: 0.35rem 0 0.25rem 0;
    font-weight: 700;
    color: #0f172a;
    font-size: 0.95rem;
}

.citations-modal__info {
    color: #475569;
    font-size: 0.875rem;
}

.citations-modal__doi {
    margin-top: 0.35rem;
}

.citations-modal__doi a {
    color: var(--citations-primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    word-break: break-all;
    transition: color 0.15s ease, text-decoration 0.15s ease;
}

.citations-modal__doi a:hover {
    color: var(--citations-secondary);
    text-decoration: underline;
}

/* Estado sin citas */
.citations-modal__empty {
    padding: 1.5rem 0;
    color: #475569;
    font-size: 0.95rem;
    line-height: 1.6;
    text-align: left;
}

/* ==========================================================================
   Modo Oscuro (Dark Theme)
   ========================================================================== */
.dark .metabiblioteca-widget.citations-block-card {
    background-color: #0f172a;
    border-color: rgba(51, 65, 85, 0.8);
}

.dark .citations-modal__content {
    background-color: #0f172a;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.dark .citations-modal__close {
    background: #1e293b;
    color: #94a3b8;
}

.dark .citations-modal__close:hover {
    background: #334155;
    color: #f8fafc;
}

.dark .citations-modal__divider {
    border-top-color: rgba(51, 65, 85, 0.8);
}

.dark .citations-modal__item {
    border-bottom-color: rgba(51, 65, 85, 0.8);
    color: #cbd5e1;
}

.dark .citations-modal__authors {
    color: #f1f5f9;
}

.dark .citations-modal__title {
    color: #ffffff;
}

.dark .citations-modal__info {
    color: #94a3b8;
}

.dark .citations-modal__empty {
    color: #cbd5e1;
}

/* ==========================================================================
   Animaciones
   ========================================================================== */
@keyframes citationsFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes citationsScaleIn {
    from {
        opacity: 0;
        transform: scale(0.96) translateY(8px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}