/* --- PDF READER --- */
.pdf-reader-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    font-family: var(--font-body);
}

.pdf-reader-modal.hidden {
    display: none;
}

.pdf-reader-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-main);
    position: relative;
    box-shadow: 0 0 20px rgba(0,245,255,0.2);
}

/* Toolbar */
.pdf-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--bg-card);
    border-bottom: 2px solid var(--border-color);
    transition: transform 0.3s ease;
    z-index: 10;
}

.pdf-toolbar-hidden {
    transform: translateY(-100%);
}

.pdf-toolbar-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pdf-btn {
    background: transparent;
    border: 2px solid transparent;
    color: var(--text-main);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.pdf-btn:hover {
    background: var(--bg-hover);
    color: var(--cyan);
}

.pdf-btn.active {
    background: var(--cyan);
    color: var(--bg-main);
}

.pdf-btn-primary {
    background: var(--cyan);
    color: var(--bg-main);
    border: 2px solid var(--cyan);
    font-family: var(--font-title);
    padding: 8px 16px;
    font-size: 1rem;
}

.pdf-btn-primary:hover {
    background: transparent;
    color: var(--cyan);
}

.pdf-page-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.pdf-page-input {
    width: 40px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    text-align: center;
    font-family: var(--font-mono);
    padding: 2px;
}

.pdf-toolbar-title {
    flex: 1;
    text-align: center;
    font-family: var(--font-title);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 16px;
    color: var(--cyan);
}

/* Search Bar */
.pdf-search-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: #12122a;
    border-bottom: 2px solid var(--cyan);
    z-index: 9;
}

.pdf-search-bar input {
    flex: 1;
    margin: 0;
    font-family: var(--font-mono);
}

#pdf-search-count {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    min-width: 60px;
    text-align: center;
}

/* Viewer Area */
.pdf-viewer-area {
    flex: 1;
    overflow-y: auto;
    position: relative;
    background: #0a0a1a;
    outline: none;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pdf-pages-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 20px;
    min-height: 100%;
}

.pdf-page-wrapper {
    position: relative;
    background: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
    margin: 0 auto;
}

.pdf-page-canvas {
    display: block;
}

.pdf-text-layer {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    overflow: hidden;
    opacity: 0.2;
    line-height: 1;
}

.pdf-text-layer > span {
    color: transparent;
    position: absolute;
    white-space: pre;
    cursor: text;
    transform-origin: 0% 0%;
}

::selection {
    background: rgba(0, 245, 255, 0.3);
}

/* States */
.pdf-loading-state, .pdf-error-state, .pdf-password-state {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background: var(--bg-card);
    padding: 24px;
    border: 2px solid var(--border-color);
    width: 80%;
    max-width: 400px;
}

.pdf-progress-wrap {
    width: 100%;
    height: 4px;
    background: var(--bg-input);
    margin-top: 12px;
    border-radius: 2px;
    overflow: hidden;
}

.pdf-progress-bar {
    height: 100%;
    width: 0%;
    background: var(--cyan);
    transition: width 0.2s;
}

.pdf-password-input {
    width: 100%;
    margin: 16px 0;
    text-align: center;
    font-family: var(--font-mono);
}

/* Zoom FAB */
.pdf-zoom-fab {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    border-radius: 24px;
    padding: 4px 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
    z-index: 10;
}

.pdf-zoom-btn {
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 8px;
}

.pdf-zoom-btn:hover { color: var(--cyan); }

#pdf-zoom-level {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    min-width: 48px;
    text-align: center;
}

/* Mobile adjustments */
@media (max-width: 600px) {
    .pdf-toolbar-group:last-child .pdf-btn[title="Descargar PDF"],
    .pdf-toolbar-group:last-child .pdf-btn[title="Resaltar texto"] {
        display: none;
    }
    .pdf-toolbar-title {
        font-size: 0.8rem;
    }
    .pdf-zoom-fab {
        bottom: 16px;
        right: 16px;
    }
}