/*
 * AOI PDF Tools — responsive front-end interface
 * Version 1.3.1 — AOI brand-aligned palette
 */

.aio-pdf-app {
    --aio-ink: #172033;
    --aio-muted: #6b7280;
    --aio-line: #e7e9ef;
    --aio-line-strong: #cfd4df;
    --aio-brand: #d92d20;
    --aio-brand-dark: #a81812;
    --aio-brand-soft: #fff0ee;
    --aio-soft: #f7f8fb;
    --aio-surface: #ffffff;
    --aio-success: #12825b;
    --aio-danger: #b42318;
    --aio-warning: #7a4d00;
    --aio-radius-sm: 10px;
    --aio-radius-md: 16px;
    --aio-radius-lg: 24px;
    --aio-shadow-sm: 0 6px 20px rgba(16, 24, 40, 0.06);
    --aio-shadow-lg: 0 22px 60px rgba(23, 32, 51, 0.14);

    width: min(100%, 1280px);
    max-width: 1280px;
    margin: clamp(16px, 3vw, 34px) auto;
    padding-inline: clamp(12px, 2.5vw, 28px);
    color: var(--aio-ink);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.55;
    container-type: inline-size;
}

.aio-pdf-app,
.aio-pdf-app * {
    box-sizing: border-box;
}

.aio-pdf-app h2,
.aio-pdf-app h3,
.aio-pdf-app p {
    overflow-wrap: anywhere;
}

.aio-pdf-app button,
.aio-pdf-app input,
.aio-pdf-app select,
.aio-pdf-app textarea {
    max-width: 100%;
    margin: 0;
    font: inherit;
    line-height: inherit;
}

.aio-pdf-app button,
.aio-pdf-app [role="button"] {
    -webkit-tap-highlight-color: transparent;
}

.aio-pdf-app button {
    appearance: none;
}

.aio-pdf-app [hidden] {
    display: none !important;
}

.aio-pdf-app :focus-visible {
    outline: 3px solid rgba(49, 88, 212, 0.36);
    outline-offset: 3px;
}

/* Hero */
.aio-pdf-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(250px, 340px);
    gap: clamp(22px, 4vw, 52px);
    align-items: center;
    width: 100%;
    padding: clamp(26px, 4.2vw, 50px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: clamp(20px, 2.2vw, 28px);
    background:
        radial-gradient(circle at 100% 0%, rgba(217, 45, 32, 0.48), transparent 38%),
        linear-gradient(135deg, #172033 0%, #27324f 58%, #482321 100%);
    color: #ffffff;
    box-shadow: var(--aio-shadow-lg);
    isolation: isolate;
}

.aio-pdf-hero > div:first-child {
    min-width: 0;
}

.aio-pdf-kicker {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 7px 13px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    font-size: clamp(11px, 1.1vw, 13px);
    font-weight: 800;
    letter-spacing: 0.09em;
    line-height: 1.2;
    text-transform: uppercase;
}

.aio-pdf-hero h2 {
    max-width: 820px;
    margin: clamp(14px, 2vw, 20px) 0 10px;
    color: #ffffff;
    font-size: clamp(34px, 5vw, 62px);
    font-weight: 800;
    letter-spacing: -0.035em;
    line-height: 1.03;
}

.aio-pdf-hero p {
    max-width: 760px;
    margin: 0;
    color: rgba(255, 255, 255, 0.84);
    font-size: clamp(15px, 1.6vw, 18px);
    line-height: 1.55;
}

.aio-pdf-privacy {
    width: 100%;
    min-width: 0;
    padding: clamp(18px, 2.2vw, 24px);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.11);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.aio-pdf-privacy strong,
.aio-pdf-privacy span {
    display: block;
}

.aio-pdf-privacy strong {
    font-size: clamp(15px, 1.5vw, 18px);
    line-height: 1.3;
}

.aio-pdf-privacy span {
    margin-top: 7px;
    color: rgba(255, 255, 255, 0.76);
    font-size: clamp(12px, 1.25vw, 14px);
    line-height: 1.55;
}

/* Search and filters */
.aio-pdf-toolbar {
    display: grid;
    grid-template-columns: minmax(220px, 360px) minmax(0, 1fr);
    gap: 16px;
    align-items: center;
    margin: clamp(20px, 3vw, 30px) 0;
}

.aio-pdf-toolbar input {
    width: 100%;
    min-height: 48px;
    padding: 11px 16px;
    border: 1px solid var(--aio-line);
    border-radius: 13px;
    background: var(--aio-surface);
    color: var(--aio-ink);
    box-shadow: var(--aio-shadow-sm);
}

.aio-pdf-toolbar input::placeholder {
    color: #98a2b3;
}

.aio-pdf-toolbar input:focus {
    border-color: var(--aio-brand);
    box-shadow: 0 0 0 4px rgba(217, 45, 32, 0.10);
    outline: none;
}

.aio-pdf-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
    min-width: 0;
}

.aio-pdf-filter button {
    min-height: 42px;
    padding: 8px 15px;
    border: 1px solid var(--aio-line);
    border-radius: 999px;
    background: var(--aio-surface);
    color: var(--aio-muted);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.aio-pdf-filter button:hover {
    border-color: #efb5b0;
    color: var(--aio-brand-dark);
    transform: translateY(-1px);
}

.aio-pdf-filter button.is-active {
    border-color: var(--aio-brand);
    background: var(--aio-brand);
    color: #ffffff;
    box-shadow: 0 5px 15px rgba(217, 45, 32, 0.20);
}

/* Main toolbox layout */
.aio-pdf-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(360px, 0.75fr);
    gap: clamp(18px, 2.5vw, 28px);
    align-items: start;
    width: 100%;
}

.aio-pdf-tools-panel,
.aio-pdf-workspace {
    min-width: 0;
    border: 1px solid var(--aio-line);
    border-radius: clamp(18px, 2vw, 24px);
    background: var(--aio-surface);
    box-shadow: var(--aio-shadow-sm);
}

.aio-pdf-tools-panel {
    padding: clamp(14px, 2vw, 22px);
}

.aio-pdf-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.aio-pdf-card {
    position: relative;
    display: flex;
    gap: 12px;
    align-items: flex-start;
    min-width: 0;
    min-height: 116px;
    padding: 16px;
    border: 1px solid var(--aio-line);
    border-radius: 16px;
    background: var(--aio-surface);
    color: var(--aio-ink);
    text-align: left;
    cursor: pointer;
    transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.aio-pdf-card:hover {
    transform: translateY(-2px);
    border-color: #f0bbb6;
    box-shadow: 0 12px 28px rgba(38, 42, 105, 0.09);
}

.aio-pdf-card.is-selected {
    border-color: var(--aio-brand);
    box-shadow: 0 0 0 4px rgba(217, 45, 32, 0.11);
}

.aio-pdf-card-icon {
    display: grid;
    place-items: center;
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    border-radius: 13px;
    background: var(--aio-brand-soft);
    color: var(--aio-brand-dark);
    font-size: 14px;
    font-weight: 900;
    line-height: 1;
}

.aio-pdf-card-copy {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    gap: 5px;
    min-width: 0;
    padding-right: 2px;
}

.aio-pdf-card-copy strong {
    color: var(--aio-ink);
    font-size: 14px;
    line-height: 1.35;
}

.aio-pdf-card-copy small {
    color: var(--aio-muted);
    font-size: 12px;
    line-height: 1.45;
}

.aio-pdf-card-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 3px 7px;
    border-radius: 999px;
    background: #fff4e5;
    color: #9a5b00;
    font-size: 9px;
    font-weight: 900;
    letter-spacing: 0.06em;
}

.aio-pdf-empty {
    margin: 0;
    padding: 46px 20px;
    color: var(--aio-muted);
    text-align: center;
}

/* Workspace */
.aio-pdf-workspace {
    position: sticky;
    top: max(20px, var(--wp-admin--admin-bar--height, 0px));
    padding: clamp(22px, 2.5vw, 32px);
}

.aio-pdf-workspace-empty {
    display: grid;
    place-items: center;
    min-height: 420px;
    padding: 30px;
    text-align: center;
}

.aio-pdf-workspace-empty > span {
    display: grid;
    place-items: center;
    width: 78px;
    height: 78px;
    border-radius: 24px;
    background: var(--aio-brand-soft);
    color: var(--aio-brand);
    font-weight: 900;
}

.aio-pdf-workspace-empty h3 {
    margin: 18px 0 6px;
    color: var(--aio-ink);
    font-size: clamp(20px, 2vw, 25px);
    line-height: 1.25;
}

.aio-pdf-workspace-empty p {
    margin: 0;
    color: var(--aio-muted);
}

.aio-pdf-workspace-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    margin-bottom: clamp(18px, 2.5vw, 24px);
}

.aio-pdf-workspace-icon {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 15px;
    background: var(--aio-brand-soft);
    color: var(--aio-brand-dark);
    font-size: 15px;
    font-weight: 900;
    line-height: 1;
}

.aio-pdf-workspace-head h3 {
    margin: 0 0 4px;
    color: var(--aio-ink);
    font-size: clamp(21px, 2.4vw, 30px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.aio-pdf-workspace-head p {
    margin: 0;
    color: var(--aio-muted);
    font-size: clamp(13px, 1.25vw, 15px);
    line-height: 1.5;
}

/* Upload area */
.aio-pdf-dropzone {
    display: grid;
    place-items: center;
    width: 100%;
    min-height: clamp(174px, 22vw, 220px);
    padding: clamp(22px, 4vw, 38px) 20px;
    border: 2px dashed #c9ced8;
    border-radius: 18px;
    background: linear-gradient(180deg, #fafbff 0%, var(--aio-soft) 100%);
    color: var(--aio-ink);
    text-align: center;
    cursor: pointer;
    transition: border-color 0.18s ease, background-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.aio-pdf-dropzone:hover,
.aio-pdf-dropzone.is-dragging {
    border-color: var(--aio-brand);
    background: #fff6f5;
    box-shadow: inset 0 0 0 1px rgba(217, 45, 32, 0.08);
}

.aio-pdf-dropzone.is-dragging {
    transform: scale(1.005);
}

.aio-pdf-upload-symbol {
    display: grid;
    place-items: center;
    width: 50px;
    height: 50px;
    margin-bottom: 12px;
    border-radius: 50%;
    background: var(--aio-surface);
    color: var(--aio-brand);
    font-size: 28px;
    font-weight: 700;
    box-shadow: 0 8px 22px rgba(17, 24, 39, 0.1);
}

.aio-pdf-dropzone strong {
    max-width: 520px;
    font-size: clamp(15px, 1.6vw, 18px);
    line-height: 1.35;
}

.aio-pdf-dropzone span {
    max-width: 620px;
    margin-top: 7px;
    color: var(--aio-muted);
    font-size: clamp(11px, 1.15vw, 13px);
    line-height: 1.5;
}

/* Selected files */
.aio-pdf-files {
    display: grid;
    gap: 9px;
    margin-top: 15px;
}

.aio-pdf-file {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 11px;
    align-items: center;
    min-width: 0;
    padding: 11px 12px;
    border: 1px solid var(--aio-line);
    border-radius: 13px;
    background: var(--aio-surface);
}

.aio-pdf-file-type {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 11px;
    background: #fff0ef;
    color: #c6382b;
    font-size: 10px;
    font-weight: 900;
}

.aio-pdf-file-name {
    min-width: 0;
}

.aio-pdf-file-name strong,
.aio-pdf-file-name small {
    display: block;
}

.aio-pdf-file-name strong {
    overflow: hidden;
    color: var(--aio-ink);
    font-size: 13px;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.aio-pdf-file-name small {
    margin-top: 2px;
    color: var(--aio-muted);
    font-size: 11px;
    line-height: 1.4;
}

.aio-pdf-file-actions {
    display: flex;
    gap: 5px;
    flex-wrap: nowrap;
}

.aio-pdf-file-actions button {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 1px solid var(--aio-line);
    border-radius: 9px;
    background: var(--aio-surface);
    color: var(--aio-ink);
    cursor: pointer;
}

.aio-pdf-file-actions button:hover {
    border-color: var(--aio-brand);
    color: var(--aio-brand-dark);
}

.aio-pdf-file-actions button:disabled {
    opacity: 0.38;
    cursor: not-allowed;
}

.aio-pdf-file.is-warning {
    border-color: #e7b842;
    background: #fffaf0;
}

.aio-pdf-file-status {
    display: block;
    margin-top: 3px;
    color: var(--aio-warning);
    font-size: 10px;
}

/* Tool settings */
.aio-pdf-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.aio-pdf-field {
    display: grid;
    gap: 7px;
    min-width: 0;
}

.aio-pdf-field-textarea,
.aio-pdf-field-signature {
    grid-column: 1 / -1;
}

.aio-pdf-field > span {
    color: #344054;
    font-size: 12px;
    font-weight: 800;
    line-height: 1.35;
}

.aio-pdf-field input,
.aio-pdf-field select,
.aio-pdf-field textarea {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid var(--aio-line-strong);
    border-radius: 11px;
    background: var(--aio-surface);
    color: var(--aio-ink);
}

.aio-pdf-field textarea {
    min-height: 132px;
    resize: vertical;
}

.aio-pdf-field input[type="color"] {
    min-height: 44px;
    padding: 4px;
}

.aio-pdf-field input:focus,
.aio-pdf-field select:focus,
.aio-pdf-field textarea:focus {
    border-color: var(--aio-brand);
    box-shadow: 0 0 0 4px rgba(217, 45, 32, 0.10);
    outline: none;
}

.aio-pdf-checkbox-field {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    justify-content: start;
    min-height: 46px;
    padding: 10px 12px;
    border: 1px solid var(--aio-line);
    border-radius: 11px;
    background: var(--aio-surface);
}

.aio-pdf-checkbox-field input {
    width: 18px;
    height: 18px;
    min-height: 0;
    margin: 0;
    accent-color: var(--aio-brand);
}

.aio-pdf-checkbox-field > span {
    font-weight: 700;
}

/* Signature */
.aio-pdf-signature-pad {
    display: grid;
    gap: 9px;
}

.aio-pdf-signature-pad canvas {
    display: block;
    width: 100%;
    height: clamp(140px, 20vw, 180px);
    border: 1px solid var(--aio-line-strong);
    border-radius: 13px;
    background: var(--aio-surface);
    cursor: crosshair;
    touch-action: none;
}

.aio-pdf-signature-controls {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
}

.aio-pdf-signature-controls span {
    color: var(--aio-muted);
    font-size: 12px;
}

.aio-pdf-signature-controls button {
    min-height: 40px;
    padding: 8px 13px;
    border: 1px solid var(--aio-line);
    border-radius: 10px;
    background: var(--aio-surface);
    color: var(--aio-ink);
    font-weight: 700;
    cursor: pointer;
}

.aio-pdf-signature-controls button:hover {
    border-color: var(--aio-brand);
    color: var(--aio-brand-dark);
}

/* Preview */
.aio-pdf-preview {
    margin-top: 16px;
    padding: clamp(12px, 2vw, 16px);
    border: 1px solid var(--aio-line);
    border-radius: 15px;
    background: #fbfcfe;
}

.aio-pdf-preview-head {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 11px;
}

.aio-pdf-preview-head > div {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 2px;
}

.aio-pdf-preview-head strong {
    font-size: 13px;
}

.aio-pdf-preview-head span {
    color: var(--aio-muted);
    font-size: 11px;
}

.aio-pdf-preview-head button,
.aio-pdf-secondary-actions button,
.aio-pdf-cancel {
    min-height: 40px;
    padding: 8px 12px;
    border: 1px solid var(--aio-line);
    border-radius: 10px;
    background: var(--aio-surface);
    color: var(--aio-ink);
    font-weight: 700;
    cursor: pointer;
}

.aio-pdf-preview-head button:hover,
.aio-pdf-secondary-actions button:hover,
.aio-pdf-cancel:hover {
    border-color: var(--aio-brand);
    color: var(--aio-brand-dark);
}

.aio-pdf-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
    gap: 10px;
    max-height: min(430px, 60vh);
    padding: 2px;
    overflow: auto;
    overscroll-behavior: contain;
}

.aio-pdf-preview-page {
    position: relative;
    display: grid;
    gap: 6px;
    min-width: 0;
    padding: 7px;
    border: 1px solid var(--aio-line);
    border-radius: 11px;
    background: var(--aio-surface);
    color: var(--aio-ink);
    text-align: center;
    cursor: default;
}

.aio-pdf-preview-page.is-selectable {
    cursor: pointer;
}

.aio-pdf-preview-page.is-selected {
    border-color: var(--aio-brand);
    box-shadow: 0 0 0 3px rgba(217, 45, 32, 0.13);
}

.aio-pdf-preview-page canvas,
.aio-pdf-preview-page img {
    display: block;
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: contain;
    border-radius: 7px;
    background: #eef1f5;
}

.aio-pdf-preview-page span {
    font-size: 10px;
    font-weight: 800;
}

.aio-pdf-preview-page.is-selected::after {
    content: "✓";
    position: absolute;
    top: 6px;
    right: 6px;
    display: grid;
    place-items: center;
    width: 23px;
    height: 23px;
    border-radius: 50%;
    background: var(--aio-brand);
    color: #ffffff;
    font-size: 12px;
    font-weight: 900;
}

.aio-pdf-preview-hint {
    margin: 10px 0 0;
    color: var(--aio-muted);
    font-size: 11px;
    text-align: center;
}

/* Notices and progress */
.aio-pdf-notice,
.aio-pdf-runtime-warning,
.aio-pdf-noscript {
    margin-top: 15px;
    padding: 12px 14px;
    border-radius: 11px;
    font-size: 13px;
    line-height: 1.5;
}

.aio-pdf-notice.is-error,
.aio-pdf-noscript {
    background: #fff0ef;
    color: var(--aio-danger);
}

.aio-pdf-notice.is-success {
    background: #eafaf3;
    color: var(--aio-success);
}

.aio-pdf-notice.is-info {
    background: #eef3ff;
    color: #3158d4;
}

.aio-pdf-runtime-warning {
    background: #fff8e5;
    color: var(--aio-warning);
}

.aio-pdf-notice:focus {
    outline: 2px solid rgba(49, 88, 212, 0.28);
}

.aio-pdf-progress {
    margin-top: 15px;
}

.aio-pdf-progress-bar {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: #eceef3;
}

.aio-pdf-progress-bar span {
    display: block;
    width: 15%;
    height: 100%;
    border-radius: inherit;
    background: var(--aio-brand);
    transition: width 0.35s ease;
}

.aio-pdf-progress-bar[aria-valuenow="100"] span {
    background: var(--aio-success);
}

.aio-pdf-progress p {
    margin: 8px 0 0;
    color: var(--aio-muted);
    font-size: 12px;
    text-align: center;
}

.aio-pdf-progress small {
    display: block;
    margin-top: 4px;
    color: var(--aio-muted);
    font-size: 11px;
    text-align: center;
}

/* Actions */
.aio-pdf-primary-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: stretch;
    margin-top: 18px;
}

.aio-pdf-submit,
.aio-pdf-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 50px;
    padding: 12px 18px;
    border: 0;
    border-radius: 12px;
    background: var(--aio-brand);
    color: #ffffff !important;
    font-weight: 800;
    line-height: 1.25;
    text-align: center;
    text-decoration: none !important;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(217, 45, 32, 0.22);
    transition: background-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.aio-pdf-submit {
    margin-top: 0;
}

.aio-pdf-download {
    margin-top: 16px;
    background: var(--aio-success);
    box-shadow: 0 8px 20px rgba(8, 127, 91, 0.16);
}

.aio-pdf-submit:hover,
.aio-pdf-download:hover {
    transform: translateY(-1px);
}

.aio-pdf-submit:hover {
    background: var(--aio-brand-dark);
    box-shadow: 0 10px 24px rgba(168, 24, 18, 0.24);
}

.aio-pdf-download:hover {
    background: #066a4c;
}

.aio-pdf-submit:disabled {
    opacity: 0.58;
    cursor: wait;
    transform: none;
    box-shadow: none;
}

.aio-pdf-submit.is-processing span::after {
    content: "…";
}

.aio-pdf-cancel {
    min-width: 96px;
    border-color: #f1c4c0;
    background: #fff0ef;
    color: var(--aio-danger);
}

.aio-pdf-secondary-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.aio-pdf-secondary-actions button {
    font-size: 12px;
}

/* Single landing-page layout */
.aio-pdf-app-single {
    width: min(100%, 1120px);
    max-width: 1120px;
}

.aio-pdf-layout-single {
    grid-template-columns: minmax(0, 960px);
    justify-content: center;
    margin-top: clamp(20px, 3vw, 30px);
}

.aio-pdf-layout-single .aio-pdf-workspace {
    position: static;
    width: 100%;
    padding: clamp(22px, 3.2vw, 38px);
}

.aio-pdf-app-single .aio-pdf-privacy {
    max-width: 340px;
    justify-self: end;
}

.aio-pdf-shortcode-error {
    width: min(100%, 900px);
    margin: 18px auto;
    padding: 13px 15px;
    border: 1px solid #f3b5af;
    border-radius: 11px;
    background: #fff0ef;
    color: var(--aio-danger);
}

/* Utility */
.aio-pdf-app .screen-reader-text {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* RTL */
[dir="rtl"] .aio-pdf-app,
[dir="rtl"].aio-pdf-app {
    text-align: right;
}

[dir="rtl"] .aio-pdf-card,
[dir="rtl"].aio-pdf-card {
    text-align: right;
}

[dir="rtl"] .aio-pdf-card-badge {
    right: auto;
    left: 8px;
}

[dir="rtl"] .aio-pdf-preview-page.is-selected::after {
    right: auto;
    left: 6px;
}

/* Container-responsive layouts also work inside narrow page-builder columns. */
@container (max-width: 1080px) {
    .aio-pdf-layout:not(.aio-pdf-layout-single) {
        grid-template-columns: 1fr;
    }

    .aio-pdf-workspace {
        position: static;
    }

    .aio-pdf-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@container (max-width: 820px) {
    .aio-pdf-hero {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .aio-pdf-app-single .aio-pdf-privacy,
    .aio-pdf-privacy {
        max-width: none;
        justify-self: stretch;
    }

    .aio-pdf-toolbar {
        grid-template-columns: 1fr;
    }

    .aio-pdf-filter {
        justify-content: flex-start;
    }
}

@container (max-width: 640px) {
    .aio-pdf-grid {
        grid-template-columns: 1fr;
    }

    .aio-pdf-options {
        grid-template-columns: 1fr;
    }

    .aio-pdf-field-textarea,
    .aio-pdf-field-signature {
        grid-column: auto;
    }

    .aio-pdf-primary-actions {
        grid-template-columns: 1fr;
    }

    .aio-pdf-cancel {
        width: 100%;
    }
}

@container (max-width: 480px) {
    .aio-pdf-workspace-head {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .aio-pdf-workspace-icon {
        justify-self: center;
    }

    .aio-pdf-preview-head {
        align-items: stretch;
        flex-direction: column;
    }

    .aio-pdf-preview-head button {
        width: 100%;
    }

    .aio-pdf-file {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .aio-pdf-file-actions {
        grid-column: 1 / -1;
        justify-content: flex-end;
        padding-top: 2px;
    }

    .aio-pdf-signature-controls {
        align-items: stretch;
        flex-direction: column;
    }

    .aio-pdf-signature-controls button {
        width: 100%;
    }

    .aio-pdf-filter {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .aio-pdf-filter button {
        width: 100%;
        padding-inline: 10px;
    }
}

/* Viewport fallbacks for browsers without container-query support. */
@media (max-width: 1100px) {
    .aio-pdf-layout:not(.aio-pdf-layout-single) {
        grid-template-columns: 1fr;
    }

    .aio-pdf-workspace {
        position: static;
    }

    .aio-pdf-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 820px) {
    .aio-pdf-app {
        padding-inline: clamp(10px, 3vw, 18px);
    }

    .aio-pdf-hero {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .aio-pdf-app-single .aio-pdf-privacy,
    .aio-pdf-privacy {
        max-width: none;
        justify-self: stretch;
    }

    .aio-pdf-toolbar {
        grid-template-columns: 1fr;
    }

    .aio-pdf-filter {
        justify-content: flex-start;
    }
}

@media (max-width: 640px) {
    .aio-pdf-app {
        margin-block: 14px 22px;
    }

    .aio-pdf-hero {
        padding: 24px 20px;
        border-radius: 20px;
    }

    .aio-pdf-grid {
        grid-template-columns: 1fr;
    }

    .aio-pdf-workspace,
    .aio-pdf-layout-single .aio-pdf-workspace {
        padding: 20px 16px;
        border-radius: 18px;
    }

    .aio-pdf-tools-panel {
        padding: 13px;
        border-radius: 18px;
    }

    .aio-pdf-options {
        grid-template-columns: 1fr;
    }

    .aio-pdf-field-textarea,
    .aio-pdf-field-signature {
        grid-column: auto;
    }

    .aio-pdf-primary-actions {
        grid-template-columns: 1fr;
    }

    .aio-pdf-cancel {
        width: 100%;
    }

    .aio-pdf-dropzone {
        min-height: 168px;
        padding: 24px 14px;
    }
}

@media (max-width: 480px) {
    .aio-pdf-app {
        padding-inline: 10px;
    }

    .aio-pdf-hero {
        padding: 22px 17px;
    }

    .aio-pdf-hero h2 {
        font-size: clamp(31px, 11vw, 43px);
    }

    .aio-pdf-workspace-head {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .aio-pdf-workspace-icon {
        justify-self: center;
    }

    .aio-pdf-preview-head {
        align-items: stretch;
        flex-direction: column;
    }

    .aio-pdf-preview-head button {
        width: 100%;
    }

    .aio-pdf-preview-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .aio-pdf-file {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .aio-pdf-file-actions {
        grid-column: 1 / -1;
        justify-content: flex-end;
        padding-top: 2px;
    }

    .aio-pdf-signature-controls {
        align-items: stretch;
        flex-direction: column;
    }

    .aio-pdf-signature-controls button {
        width: 100%;
    }

    .aio-pdf-filter {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        width: 100%;
    }

    .aio-pdf-filter button {
        width: 100%;
        padding-inline: 10px;
    }
}

@media (max-width: 350px) {
    .aio-pdf-filter,
    .aio-pdf-preview-grid {
        grid-template-columns: 1fr;
    }

    .aio-pdf-card {
        padding: 13px;
    }

    .aio-pdf-card-icon {
        flex-basis: 40px;
        width: 40px;
        height: 40px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .aio-pdf-app *,
    .aio-pdf-app *::before,
    .aio-pdf-app *::after {
        scroll-behavior: auto !important;
        transition: none !important;
        animation: none !important;
    }
}

@media (forced-colors: active) {
    .aio-pdf-hero,
    .aio-pdf-submit,
    .aio-pdf-download,
    .aio-pdf-filter button.is-active {
        border: 1px solid ButtonText;
    }
}