/* ── Container ── */
.xcala-pdf-container {
    position: relative;
    width: 100%;
    margin: 1em 0;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    line-height: 1;
}

.xcala-pdf-container.xcala-pdf-fullscreen {
    position: fixed;
    inset: 0;
    z-index: 999999;
    width: 100% !important;
    max-width: none !important;
    border-radius: 0;
    border: none;
    background: #333;
}
.xcala-pdf-container.xcala-pdf-fullscreen .xcala-pdf-viewport {
    max-height: none !important;
    height: calc(100vh - 42px);
}

/* ── Loading ── */
.xcala-pdf-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: #888;
}

.xcala-pdf-error {
    padding: 20px;
    color: #c00;
    text-align: center;
}

/* ── Viewport ── */
.xcala-pdf-viewport {
    overflow-y: auto;
    overflow-x: auto;
    text-align: center;
    background: #e8e8e8;
}

.xcala-pdf-no-scrollbar .xcala-pdf-viewport {
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.xcala-pdf-no-scrollbar .xcala-pdf-viewport::-webkit-scrollbar {
    display: none;
}

/* ── Page ── */
.xcala-pdf-page {
    position: relative;
    display: inline-block;
    margin: 8px auto;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.15);
    line-height: 0;
}
.xcala-pdf-page canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

/* ── Text Layer ── */
.xcala-pdf-text-layer {
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
    opacity: 0.25;
    line-height: 1;
}
.xcala-pdf-text-layer span {
    position: absolute;
    white-space: pre;
    color: transparent;
    pointer-events: all;
}
.xcala-pdf-text-layer span::selection {
    background: rgba(0, 100, 200, 0.3);
}
.xcala-pdf-text-layer .xcala-pdf-highlight {
    background: rgba(255, 220, 0, 0.6) !important;
    color: transparent;
    border-radius: 2px;
}

/* ── Annotation Layer ── */
.xcala-pdf-annotation-layer {
    position: absolute;
    top: 0;
    left: 0;
}
.xcala-pdf-annotation-layer a {
    display: block;
    position: absolute;
}

/* ── Toolbar ── */
.xcala-pdf-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background: #2c2c2c;
    color: #fff;
    gap: 8px;
    min-height: 36px;
    transition: opacity 0.3s ease;
    z-index: 10;
    flex-wrap: wrap;
}

.xcala-pdf-hover-toolbar .xcala-pdf-toolbar {
    opacity: 0;
}
.xcala-pdf-hover-toolbar:hover .xcala-pdf-toolbar,
.xcala-pdf-hover-toolbar:focus-within .xcala-pdf-toolbar {
    opacity: 1;
}

.xcala-pdf-toolbar-left,
.xcala-pdf-toolbar-right {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ── Buttons ── */
.xcala-pdf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 28px;
    padding: 0 6px;
    border: none;
    border-radius: 3px;
    background: rgba(255,255,255,0.12);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.15s;
    line-height: 1;
}
.xcala-pdf-btn:hover {
    background: rgba(255,255,255,0.25);
}
.xcala-pdf-btn:disabled {
    opacity: 0.35;
    cursor: default;
}
.xcala-pdf-btn:disabled:hover {
    background: rgba(255,255,255,0.12);
}

/* ── Page Input ── */
.xcala-pdf-page-input {
    width: 48px;
    height: 26px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 3px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-size: 13px;
    -moz-appearance: textfield;
}
.xcala-pdf-page-input::-webkit-inner-spin-button,
.xcala-pdf-page-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.xcala-pdf-page-total {
    color: rgba(255,255,255,0.7);
    font-size: 13px;
    white-space: nowrap;
}

/* ── Search Panel ── */
.xcala-pdf-search-panel {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: #3a3a3a;
    border-top: 1px solid #555;
}
.xcala-pdf-search-panel.xcala-pdf-hidden {
    display: none;
}
.xcala-pdf-search-input {
    flex: 1;
    height: 28px;
    padding: 0 8px;
    border: 1px solid #666;
    border-radius: 3px;
    background: #222;
    color: #fff;
    font-size: 13px;
    min-width: 100px;
}
.xcala-pdf-search-input::placeholder {
    color: #999;
}
.xcala-pdf-search-info {
    color: rgba(255,255,255,0.6);
    font-size: 12px;
    white-space: nowrap;
}

/* ── Responsive ── */
@media (max-width: 480px) {
    .xcala-pdf-toolbar {
        padding: 4px 6px;
        gap: 4px;
    }
    .xcala-pdf-btn {
        min-width: 26px;
        height: 26px;
        font-size: 14px;
    }
    .xcala-pdf-page-input {
        width: 38px;
    }
}