/* =============================================
   Custom PDF Viewer - Professional Clean CSS
   ============================================= */
.custom-pdf-viewer-wrapper {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.12);
    border-radius: 8px;
    overflow: hidden;
    background: white;
    max-width: 100%;
    border: 1px solid #e0e0e0;
}
.pdf-toolbar {
    background: var(--toolbar-bg, #2c3e50);
    color: var(--button-text, #ecf0f1);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    border-bottom: 1px solid var(--border-color, #7f8c8d);
    justify-content: space-between;
}
.pdf-toolbar .toolbar-left,
.pdf-toolbar .toolbar-center,
.pdf-toolbar .toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}
.pdf-toolbar button {
    background: var(--button-bg, #34495e);
    color: var(--button-text, #ecf0f1);
    border: none;
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.pdf-toolbar button:hover {
    background: var(--button-hover, #3d566e);
    transform: translateY(-1px);
}

/* ==================== IMPROVED TOOLBAR INPUT READABILITY ==================== */
.pdf-toolbar input[type="number"] {
    background: #34495e;
    color: #ecf0f1 !important;
    border: 1px solid #7f8c8d;
    padding: 8px 10px;
    border-radius: 6px;
    width: 70px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
}
.pdf-toolbar input[type="number"]:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.3);
}

/* Page control wrapper */
.page-control {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #ecf0f1;
    font-size: 14px;
}

/* ==================== ADMIN DROPDOWN / SELECT FIX (Arrow Box Readability) ==================== */
select,
select option,
.wp-core-ui select {
    background: #34495e !important;
    color: #ecf0f1 !important;
    border: 1px solid #7f8c8d !important;
    padding: 8px 30px 8px 12px !important;
    border-radius: 6px !important;
    font-size: 14px !important;
    line-height: 1.5 !important;
}

/* Make the dropdown arrow visible and readable */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23ecf0f1' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.025 2.345 4 3.204 4h9.592c.86 0 1.32 1.025.753 1.659l-4.796 5.48a1 1 0 01-1.506 0z'/%3E%3C/svg%3E") !important;
    background-position: right 12px center !important;
    background-repeat: no-repeat !important;
    background-size: 12px !important;
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
}

select:focus {
    outline: none !important;
    border-color: #3498db !important;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.3) !important;
}

/* Options inside the dropdown */
select option {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 8px 12px;
}

/* Force visibility on hover/focus for admin media & custom selects */
select:hover {
    background-color: #3d566e !important;
}

.pdf-main-container {
    display: flex;
    background: #f8f9fa;
    border: 1px solid var(--border-color, #7f8c8d);
    border-top: none;
    border-radius: 0 0 8px 8px;
    overflow: hidden;
    height: auto;
}
.pdf-thumbnails {
    width: 190px;
    background: #f1f1f1;
    border-right: 1px solid var(--border-color, #7f8c8d);
    padding: 12px;
    overflow-y: auto;
    flex-shrink: 0;
}
.pdf-container {
    flex: 1;
    position: relative;
    overflow: auto;
    background: #fafafa;
    padding: 20px;
    display: block;
    text-align: center;
    min-height: 500px;
}
/* Canvas */
.pdf-container canvas {
    display: block;
    margin: 0 auto 40px auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    border-radius: 4px;
    max-width: none;
}

/* ==================== PROFESSIONAL TEXT LAYER FIX ==================== */
.textLayer {
    position: absolute !important;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    overflow: hidden;
    opacity: 1;
    pointer-events: auto;
    background: transparent;
    mix-blend-mode: normal;
}
.textLayer > div {
    color: transparent !important;
    background: transparent !important;
    position: absolute;
    white-space: pre;
    cursor: text;
    transform-origin: 0 0;
    user-select: text;
    line-height: 1;
}
.textLayer ::selection,
.textLayer ::-moz-selection {
    background: rgba(0, 120, 215, 0.4) !important;
}

/* Dark Mode */
.dark-mode .pdf-container {
    background: #2c3e50;
}

/* Loading */
.pdf-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--text-color, #2c3e50);
    z-index: 10;
}
.progress-bar {
    width: 180px;
    height: 6px;
    background: #ddd;
    border-radius: 3px;
    margin: 12px auto;
    overflow: hidden;
}
.progress {
    height: 100%;
    width: 45%;
    background: linear-gradient(90deg, #3498db, #2ecc71);
    animation: progress 1.8s linear infinite;
}
@keyframes progress {
    to { transform: translateX(400%); }
}
/* Thumbnails */
.thumbnail-list canvas {
    width: 100%;
    margin-bottom: 12px;
    border: 2px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.thumbnail-list canvas:hover,
.thumbnail-list canvas.active {
    border-color: #3498db;
    box-shadow: 0 0 0 4px rgba(52, 152, 219, 0.3);
}
/* ==================== MOBILE RESPONSIVENESS ==================== */
@media (max-width: 768px) {
    .pdf-main-container {
        flex-direction: column;
    }
   
    .pdf-thumbnails {
        width: 100%;
        max-height: 160px;
        border-right: none;
        border-bottom: 1px solid var(--border-color, #7f8c8d);
        padding: 10px;
    }
   
    .pdf-toolbar {
        padding: 10px 12px;
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }
   
    .pdf-toolbar .toolbar-left,
    .pdf-toolbar .toolbar-center,
    .pdf-toolbar .toolbar-right {
        justify-content: center;
        flex-wrap: wrap;
    }
   
    .pdf-toolbar button {
        padding: 10px 12px;
        font-size: 13px;
        flex: 1;
        min-width: 60px;
    }
   
    .pdf-container {
        padding: 12px;
        min-height: 60vh;
    }
   
    .pdf-container canvas {
        margin: 0 auto 20px auto;
        max-width: 100%;
    }
   
    .page-control input {
        width: 60px;
    }
}