/* ═══════════════════════════════════════════════════
   PDF Viewer Modal
═══════════════════════════════════════════════════ */

.pdf-viewer-modal {
    position: fixed;
    inset: 0;
    z-index: 9990;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.pdf-viewer-modal.is-open {
    opacity: 1;
    pointer-events: auto;
}

.pdf-viewer-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    cursor: pointer;
}

.pdf-viewer-dialog {
    position: relative;
    z-index: 1;
    width: 92vw;
    max-width: 1100px;
    height: 90vh;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
    transform: scale(0.96) translateY(12px);
    transition: transform 0.25s ease;
}

.pdf-viewer-modal.is-open .pdf-viewer-dialog {
    transform: scale(1) translateY(0);
}

/* ── Header ─────────────────────────────────────── */
.pdf-viewer-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    background: #f8fafc;
    flex-shrink: 0;
}

[dir="rtl"] .pdf-viewer-header {
    flex-direction: row-reverse;
}

.pdf-viewer-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pdf-viewer-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

[dir="rtl"] .pdf-viewer-header-actions {
    flex-direction: row-reverse;
}

.pdf-viewer-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    border: 1.5px solid transparent;
    transition: all 0.2s;
    cursor: pointer;
    white-space: nowrap;
}

.pdf-viewer-btn-tab {
    color: #64748b;
    border-color: #e2e8f0;
    background: #fff;
}
.pdf-viewer-btn-tab:hover {
    background: #f1f5f9;
    color: #334155;
    border-color: #cbd5e1;
}

.pdf-viewer-btn-download {
    color: #fff;
    background: var(--primary-color, #e91e8c);
    border-color: var(--primary-color, #e91e8c);
}
.pdf-viewer-btn-download:hover {
    opacity: 0.88;
    color: #fff;
}

.pdf-viewer-close {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 8px;
    border: 1.5px solid #e2e8f0;
    background: #fff;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}
.pdf-viewer-close:hover {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #dc2626;
}

/* ── Body ───────────────────────────────────────── */
.pdf-viewer-body {
    flex: 1;
    overflow: hidden;
    position: relative;
    min-height: 0;
}

.pdf-viewer-frame {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* ── Mobile / iOS fallback ──────────────────────── */
.pdf-viewer-fallback {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 40px 24px;
    text-align: center;
    gap: 16px;
    background: #f8fafc;
}

.pdf-viewer-fallback-icon {
    font-size: 4.5rem;
    color: var(--primary-color, #e91e8c);
    line-height: 1;
    opacity: 0.85;
}

.pdf-viewer-fallback-text {
    color: #64748b;
    font-size: 0.95rem;
    margin: 0;
    max-width: 320px;
    line-height: 1.6;
}

.pdf-viewer-fallback-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 700;
    text-decoration: none;
    color: #fff;
    background: var(--primary-color, #e91e8c);
    border: none;
    transition: opacity 0.2s;
    margin-top: 4px;
}
.pdf-viewer-fallback-btn:hover {
    opacity: 0.88;
    color: #fff;
}

/* ── Mobile breakpoint ──────────────────────────── */
@media (max-width: 767px) {
    .pdf-viewer-dialog {
        width: 100vw;
        height: 100dvh;
        max-width: 100%;
        border-radius: 0;
        transform: none !important;
    }

    .pdf-viewer-btn span {
        display: none;
    }

    .pdf-viewer-btn {
        padding: 7px 10px;
        min-width: 36px;
        justify-content: center;
    }

    .pdf-viewer-title {
        font-size: 0.85rem;
    }

    .pdf-viewer-header {
        padding: 12px 14px;
    }
}