:root {
    --pdf-bg-overlay: rgba(15, 23, 42, 0.6);
    --pdf-bg-modal: #ffffff;
    --pdf-border: #e2e8f0;
    --pdf-text-main: #0f172a;
    --pdf-primary: #3b82f6;
    --pdf-primary-hover: #2563eb;
    --pdf-radius: 12px;
}

/* Modal Overlay with Frosted Glass effect */
.pdf-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--pdf-bg-overlay);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 20px;
    box-sizing: border-box;
}

.pdf-modal-overlay.is-active {
    opacity: 1;
}

/* Container */
.pdf-modal-container {
    background: var(--pdf-bg-modal);
    width: 100%;
    max-width: 1100px;
    height: 90vh;
    border-radius: var(--pdf-radius);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95) translateY(10px);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.pdf-modal-overlay.is-active .pdf-modal-container {
    transform: scale(1) translateY(0);
}

/* Header Action Bar */
.pdf-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--pdf-border);
}

.pdf-modal-title {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: var(--pdf-text-main);
}

.pdf-modal-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Buttons */
.pdf-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.pdf-btn-download {
    background: var(--pdf-primary);
    color: #ffffff;
}

.pdf-btn-download:hover {
    background: var(--pdf-primary-hover);
}

.pdf-btn-close {
    background: #f1f5f9;
    color: #64748b;
    padding: 8px;
}

.pdf-btn-close:hover {
    background: #e2e8f0;
    color: var(--pdf-text-main);
}

/* Content Frame */
.pdf-modal-body {
    flex: 1;
    background: #f8fafc;
    position: relative;
}

.pdf-modal-body iframe {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}