:root {
    --primary-color: #FF4F38;
    --secondary-color: #3282FB;
    --dark-bg: rgba(0, 0, 0, 0.8);
    --light-bg: rgba(255, 255, 255, 0.9);
    --transition: all 0.3s ease-in-out;
}

/* PDF Viewer Container */
#pdf-viewer-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}

#pdf-render {
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    width: 100%;
    height: auto;
    background: #fff;
}
        
/* Loading State - Floating */
.pdf-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1001;
    background: var(--light-bg);
    padding: 20px 30px;
    border-radius: 50px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    display: none; /* Defaultnya tersembunyi */
    align-items: center;
    font-size: 16px;
    color: var(--primary-color);
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.pdf-loading.show {
    display: flex;
}

.pdf-loading::after {
    content: '';
    width: 18px;
    height: 18px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 12px;
}

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

/* Error State */
.pdf-error {
    text-align: center;
    padding: 40px;
    color: #dc3545;
    background: #f8f9fa;
    border-radius: 8px;
    margin: 20px 0;
}

.pdf-error h3 {
    margin-bottom: 10px;
}

/* Class untuk state error */
.pdf-error-state #pdf-render,
.pdf-error-state #pdf-controls,
.pdf-error-state #pdf-controls-fullscreen {
    display: none !important;
}

/* Unified Controls Base Styling */
.pdf-controls,
.pdf-controls-fullscreen {
    position: fixed;
    bottom: 20px;
    left: 50%;
    z-index: 1000;
    padding: 12px 20px;
    border-radius: 50px;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    gap: 10px;
    flex-wrap: nowrap;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(20px);
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out, transform 0.3s ease-in-out;
}

.pdf-controls.visible,
.pdf-controls-fullscreen.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Normal Controls */
.pdf-controls {
    background: var(--light-bg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Fullscreen Controls */
.pdf-controls-fullscreen {
    background: var(--dark-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 2147483647;
    display: none;
    transform: translateX(-50%) scale(0.9); /* Sedikit lebih kecil */
    transform-origin: bottom center;
}

.pdf-controls-fullscreen.visible {
    transform: translateX(-50%) translateY(0) scale(0.9);
}

/* Unified Button Styling */
.pdf-controls button,
.pdf-controls-fullscreen button,
.pdf-controls a.control-btn,
.pdf-controls-fullscreen a.control-btn,
.pdf-error .th-btn /* Tombol di notif error */
{
    background: var(--primary-color);
    border: none;
    color: white;
    padding: 10px 15px;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}

.pdf-controls button:hover,
.pdf-controls-fullscreen button:hover,
.pdf-controls a.control-btn:hover,
.pdf-controls-fullscreen a.control-btn:hover,
.pdf-error .th-btn:hover {
    background: #e63e2a;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 79, 56, 0.3);
}

.pdf-controls button:active,
.pdf-controls-fullscreen button:active,
.pdf-controls a.control-btn:active,
.pdf-controls-fullscreen a.control-btn:active {
    transform: scale(0.95);
}

.pdf-controls button:disabled,
.pdf-controls-fullscreen button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Download Button Styling */
.pdf-controls .download-btn,
.pdf-controls-fullscreen .download-btn {
    background: var(--secondary-color);
}

.pdf-controls .download-btn:hover,
.pdf-controls-fullscreen .download-btn:hover {
    background: #2970e6;
    box-shadow: 0 4px 15px rgba(50, 130, 251, 0.3);
}

/* Page Info Styling */
.pdf-controls .page-info,
.pdf-controls-fullscreen .page-info {
    margin: 0 15px;
    font-weight: 600;
    white-space: nowrap;
    font-size: 14px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.pdf-controls .page-info {
    color: #333;
}

.pdf-controls-fullscreen .page-info {
    color: #fff;
}

/* Zoom Controls */
.pdf-controls .zoom-controls,
.pdf-controls-fullscreen .zoom-controls {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-left: 15px;
    padding-left: 15px;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    flex-shrink: 0;
}

.pdf-controls-fullscreen .zoom-controls {
    border-left-color: rgba(255, 255, 255, 0.3);
}

.pdf-controls .zoom-value,
.pdf-controls-fullscreen .zoom-value {
    min-width: 45px;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdf-controls .zoom-value {
    color: #666;
}

.pdf-controls-fullscreen .zoom-value {
    color: #fff;
}

/* Fullscreen State Visibility */
#pdf-viewer-container:fullscreen .pdf-controls {
    display: none !important;
}

#pdf-viewer-container:fullscreen .pdf-controls-fullscreen {
    display: flex !important;
}

#pdf-viewer-container:fullscreen {
    background: #2c2c2c;
    overflow-y: auto;
    scroll-behavior: smooth;
    padding: 20px;
}

#pdf-viewer-container:fullscreen #pdf-render {
    margin: 20px auto;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}