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rgba(0,0,0,0.25);break-before:always;display:inline-block;font-family:"Gibson",sans-serif;font-weight:400;line-height:2.5rem;margin:1rem 0;padding-right:1rem}.form-status-success:before {background-color:#9CBA7B;border-radius:0.5rem 0 0 0.5rem;color:#fff;content:"✓";display:inline-block;font-size:1rem;font-weight:700;height:2.5rem;line-height:2.5rem;margin-right:1rem;text-align:center;vertical-align:middle;width:2.5rem}.section-one-up,.section-two-up,.section-four-up,.section-eight-up {clear:both;margin:0 auto;max-width:78rem}@media screen and (min-width:45rem) {@supports (display:grid) {.section-four-up {display:grid;grid-column-gap:2rem;grid-row-gap:2rem;grid-template-columns:repeat(2,1fr)}.section-five-up {display:grid;grid-column-gap:2rem;grid-row-gap:2rem;grid-template-columns:repeat(5,1fr)}.section-eight-up {display:grid;grid-column-gap:2rem;grid-row-gap:2rem;grid-template-columns:repeat(4,1fr)}}}@media screen and (min-width:60rem) {.section-four-up,.section-eight-up {margin-bottom:2rem}@supports (display:grid) {.section-two-up {display:grid;grid-column:span 4;grid-column-gap:2rem;grid-template-columns:repeat(2,1fr)}.section-four-up {grid-column:span 8;grid-template-columns:repeat(4,1fr)}.section-six-up {display:grid;grid-column:span 8;grid-column-gap:2rem;grid-row-gap:2rem;grid-template-columns:repeat(6,1fr)}.section-eight-up {grid-column:span 8;grid-template-columns:repeat(8,1fr)}}}@media screen and (min-width:80rem) {.section-one-up,.section-two-up,.section-four-up,.section-eight-up {padding:0}}.wrapper {margin:0 auto;overflow:hidden}@media screen and (min-width:60rem) {.wrapper {padding:0}}.header-logo-flag-0 {fill:#9CBA7B}.header-logo-flag-1 {fill:#D1E346}.header-logo-flag-2 {fill:#AF4796}.header-logo-flag-3 {fill:#D73F33}.header-logo-type {fill:#222222}.header-global {align-items:center;background-color:transparent;border-bottom:1px solid #e6e6e6;box-sizing:border-box;display:flex;flex-wrap:nowrap;height:6rem;padding:1rem;width:100%}.header-global h1 {flex-grow:2;margin:0}.header-global-logo {width:12rem}.header-skip-navigation {display:inline-block;font-size:0.75rem;left:1rem;padding:0.125rem 0;position:absolute;top:-2em;transition:top 0.25s}.header-skip-navigation:focus {top:0}.header-skip-navigation-search-alt {display:none}.header-global-reverse {border-bottom:none;left:0;position:absolute;top:0;z-index:10}.header-global-reverse .header-skip-navigation {color:#fff}.header-global-reverse .header-logo-type {fill:#ffffff}.header-global-reverse .nav-global-toggle:after {box-shadow:0 0.75rem 0 #fff}.header-global-reverse .nav-global-toggle:before,.header-global-reverse .nav-global-toggle:after {background-color:#fff}@media screen and (min-width:60rem) {.header-global {height:8rem;padding:0 1rem}.header-global h1 {flex-grow:0;margin:0 2rem 0 0}.header-global-logo {width:12rem}.header-skip-navigation-search {display:none}.header-skip-navigation-search-alt {display:block}}@media screen and (min-width:80rem) {.header-global {padding:0 2rem}.header-global-logo {width:16rem}}.header-utility {font-family:"Gibson",sans-serif;margin-bottom:2rem}.header-utility h1 {font-size:2rem;line-height:1.125;margin:0}.header-utility-breadcrumb {display:block;font-family:"Gibson",sans-serif;font-size:0.875rem;font-weight:bold;padding:0 0.25rem 0 0;text-transform:uppercase}.header-utility-breadcrumb a {color:#222;text-decoration:none}.header-utility-breadcrumb a:before {color:#9CBA7B;content:"‹ ";font-size:1.25rem;line-height:0}.header-utility-secondary {border-top:1px solid #eee;clear:both;font-family:"Gibson",sans-serif;font-size:1.25rem;padding-top:0.5rem}.header-utility-author {font-family:"Merriweather",serif;font-size:0.875rem;font-style:italic}@supports (display:grid) {.header-utility {grid-column-end:-1;grid-column-start:1}}@media screen and (min-width:60rem) {.header-utility {margin-bottom:2rem}.header-utility h1 {font-size:2.625rem;letter-spacing:-0.5px}.header-utility-description {font-size:1.25rem}}@media screen and (min-width:80rem) {.header-utility {padding:0}}.nav-global {background-color:#fff;background-color:rgba(255,255,255,0.97);border-bottom:1px solid #e6e6e6;color:#222;display:none;flex-basis:100%;font-family:"Gibson",sans-serif;font-size:1rem;font-weight:400;right:100%;padding:0 0 2rem;position:absolute;text-align:center;top:6rem;transition:transform 0.25s;width:100%;z-index:100}.nav-global-toggle {background-color:transparent;color:#222;cursor:pointer;display:inline-block;font-family:"FFScalaSans",sans-serif;font-weight:bold;line-height:4rem;overflow:hidden;padding:0;position:relative;right:0;text-decoration:none;text-indent:100%;top:0;transition:background-color 0.25s;white-space:nowrap;width:3rem}.nav-global-toggle:before,.nav-global-toggle:after {background-color:#222;border-radius:0.125rem 0;content:"";display:block;height:0.125rem;left:1rem;position:absolute;top:2rem;transition:transform 0.25s;width:1.25rem}.nav-global-active {font-weight:bold}#nav-global-toggle-check:checked ~ .nav-global-toggle:before {top:1.95rem;transform:rotate(45deg)}#nav-global-toggle-check:checked ~ .nav-global-toggle:after {box-shadow:none;top:1.95rem;transform:rotate(-45deg);width:1.25rem}.nav-global-toggle:after {box-shadow:0 0.75rem 0 #222222;top:1.625rem;width:1rem}.header-global-reverse .nav-profile-toggle {background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_default-avatar_outline_white.svg)}#nav-profile-toggle-check:checked + .nav-profile-toggle {background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_default-avatar-close_outline.svg)}.header-global-reverse #nav-profile-toggle-check:checked + .nav-profile-toggle {background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_default-avatar-close_outline_white.svg)}#nav-global-toggle-check:checked ~ .nav-global,#nav-profile-toggle-check:checked ~ .nav-profile {display:block}.nav-toggle-checkbox {cursor:pointer;height:0;margin:0;opacity:0;right:0;top:0;width:0}.nav-global-menu,.nav-profile-lists {list-style-type:none;margin:0;padding:0}.nav-global-menu a,.nav-profile-lists a {color:#222;display:block;font-size:0.875rem;padding:1rem;text-decoration:none;text-transform:uppercase;transition:background-color 0.25s}.nav-global-menu a:hover,.nav-profile-lists a:hover {background-color:#9CBA7B;color:#fff}#nav-global-toggle-check:checked ~ .nav-global {transform:translateX(100%)}@media screen and (min-width:60rem) {#nav-global-toggle-check {display:none}.nav-global {align-items:center;background-color:transparent;border:none;display:flex;flex-basis:auto;flex-grow:1;justify-content:space-between;margin:auto;padding:0;position:static;text-align:left;width:auto}.nav-global-menu a:before {background-color:#D1E346;content:"";height:0rem;left:0;position:absolute;top:0;transition:height 0.25s;width:100%}.nav-global-menu a:hover:before {height:1rem}.nav-global-menu a.active:before {background-color:#9CBA7B;height:1rem}.nav-global li {display:inline;margin-right:0.75rem}.nav-global-toggle:not(.nav-user-toggle) {display:none}.nav-global-menu a,.nav-profile-lists a {color:#222;display:inline-block;height:8rem;line-height:8rem;padding:0;position:relative;text-decoration:none;text-transform:none}.nav-global-menu a:hover,.nav-profile-lists a:hover {background-color:transparent;color:#222}.header-global-reverse .nav-global-menu a {color:#fff}.header-global-reverse .nav-global-menu a:hover {color:#fff}.nav-global ul,.nav-user ul {flex-grow:2;list-style-type:none;margin:0;padding:0}.nav-user {top:6rem}.nav-user li {padding:0.5rem 0}}@media screen and (min-width:80rem) {.nav-global-menu a,.nav-profile-lists a {font-size:1rem}}.nav-search {display:flex;padding:1rem}.nav-search.nav-search-alt {display:none}.nav-search > input[type=search] {appearance:none;border:1px solid #ddd;border-radius:0.25rem;flex-grow:2;font-family:"Gibson",sans-serif;font-size:0.875rem;line-height:2rem;margin-right:0.125rem;padding:0 0.5rem;-webkit-appearance:none}.nav-search > input[type=submit] {background-color:transparent;background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_magnify.svg);background-position:center;background-repeat:no-repeat;background-size:80%;border:none;overflow:hidden;padding:0;text-decoration:none;text-indent:100%;width:2rem}@media screen and (min-width:60rem) {.nav-search {border-radius:0.25rem;display:none;flex-grow:2;margin-right:1rem;padding:0;position:relative;width:6rem}.nav-search.nav-search-alt {display:block}.nav-search > input[type=search] {appearance:none;background:#fff;border-radius:0.25rem;line-height:2rem;padding:0 0.5rem;position:relative;transition:all 0.25s;transition-property:width;-webkit-appearance:none;width:100%;z-index:1}.nav-search > input[type=submit] {background-position:center;background-size:75%;border-radius:0 0.25rem 0.25rem 0;background-color:#FFF;height:2rem;position:absolute;right:1px;top:1px;width:2rem;z-index:2}.nav-search > input[type=search]:not(:placeholder-shown) {width:calc(100% - 2.25rem)}.nav-search > input:not(:placeholder-shown) + input[type=submit] {display:block}}@media not all and (min-resolution:0.001dpcm) {@supports (-webkit-appearance:none) {.nav-search > input[type=search] {padding:0}.nav-search > input[type=submit] {top:3px}}}.nav-profile {background-color:#333;border-radius:1rem;box-shadow:0 0.25rem 2rem rgba(32,32,32,0.5);color:#fff;display:none;font-family:"Gibson",sans-serif;left:0;margin:0 1rem;padding:1rem;position:absolute;right:0;text-align:center;top:5rem;width:calc(100% - 2rem);z-index:200}.nav-profile h3 {font-size:1.5rem;margin:1rem 0}.nav-profile-toggle {background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_default-avatar_outline.svg);cursor:pointer;height:2rem;width:2rem;text-indent:-999em;overflow:hidden}.nav-profile-toggle-logged-in {background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_default-avatar.svg);background-size:cover;border-radius:50%;box-shadow:0 0 0.25rem inset #222}.nav-profile-user {border-radius:0.5rem;left:auto;padding-bottom:1rem;right:0;top:5rem;width:max-content}.nav-profile-user:before {border-bottom:0.5rem solid #333;border-left:0.5rem solid transparent;border-right:0.5rem solid transparent;content:"";height:0;position:absolute;right:0.5rem;top:-0.5rem;width:0}.nav-profile-user h3 {font-size:1.125rem;margin:0.5rem 0;text-transform:none}.nav-profile-block {margin:1rem 0}.nav-profile-forms {text-align:left}.nav-profile-forms input[type=text],.nav-profile-forms input[type=email],.nav-profile-forms input[type=password],.nav-profile-forms textarea,.nav-profile-forms input[type=search] {border-color:#222}.nav-profile-forms a {color:#FFF}.nav-profile-avatar {display:inline-block;margin:0.5rem}.nav-profile-avatar img {border-left:1px dotted #ccc;border-right:1px dotted #ccc;border-radius:50%;box-sizing:content-box;height:5rem;padding:0.5rem;width:5rem}.nav-profile-links {line-height:1.375;list-style-type:none;margin:0;padding:0 1rem}.nav-profile-links a {color:#D1E346;text-decoration:none}.nav-profile-greeting {font-weight:600;margin:0}.nav-profile .header-global-logo {display:inline-block;margin:0 auto;width:3rem}@media screen and (min-width:45rem) {.nav-profile {box-shadow:0 2rem 4rem rgba(32,32,32,0.75);margin:0 auto;max-width:48rem;padding:2rem}.nav-profile h3 {font-size:2rem}.nav-profile-user {right:1rem;top:5rem}.nav-profile-user h3 {font-size:1.25rem}.nav-profile-forms {display:flex}.nav-profile-forms form {flex-basis:50%;margin:0 1rem}.nav-profile-greeting {margin:0.25rem 0}.nav-profile-links a {display:block;padding:0.25rem 0}}@media screen and (min-width:60rem) {.nav-profile-user {top:6rem}.nav-toggle-profile {left:0;position:absolute;top:0;visibility:hidden}#nav-toggle-profile-check:checked ~ .nav-profile-menu {display:block}.nav-profile-avatar {cursor:pointer;height:4rem;width:4rem}.nav-profile-block {align-items:center;display:flex;font-size:0.75rem;position:relative}.nav-profile-menu {background-color:#fff;border:1px solid #e6e6e6;border-radius:0.25rem;box-shadow:0 0.5rem 1rem rgba(0,0,0,0.25);display:none;font-size:0.875rem;left:50%;padding:1rem;position:absolute;text-align:center;top:100%;transform:translateX(-50%);width:max-content;z-index:100}.nav-profile-avatar img {height:3rem;width:3rem}.nav-profile-links li 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{cursor:pointer;margin-bottom:0.5rem}.dropdown-menu {font-family:"Gibson",sans-serif !important;display:none;position:absolute;min-width:100%;z-index:10;list-style-type:none;margin-top:0;padding:0 0 0.5rem 0.25rem;background-color:#fff}.dropdown-menu li {margin-bottom:0.25rem}.dropdown-menu a {display:block;min-width:100%;white-space:nowrap;padding:0.25rem;padding-right:0.75rem;color:#222;text-decoration:none;border-right:0 solid transparent;transition:0.25s all}.dropdown-menu a:hover,.dropdown-menu a:focus {border-right:0.5rem solid #D1E346;padding-right:0.25rem}.module-promo {clear:left;display:flex;margin:0 0 1rem;text-decoration:none}.module-promo-thumb {display:block;flex-basis:30%;flex-shrink:0;margin-right:0.5rem;position:relative}.module-promo-thumb img {display:block}.module-promo-list-bug {background-color:#444;background-color:rgba(34,34,34,0.9);box-shadow:0 -0.125rem 0.375rem -0.125rem 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{color:#D73F33}.section-taxonomy-list a:focus {outline:0 !important}.section-taxonomy-list-secondary {break-inside:avoid;display:none;font-size:1rem;margin:0.5rem 0 1.25rem;padding:0 1rem}.section-taxonomy-list-secondary li,.section-taxonomy-list-secondary a {display:inline-block}.section-taxonomy-list-secondary li {margin-bottom:0.5rem}.section-taxonomy-list-secondary li:after {content:" · "}.section-taxonomy-list-secondary li:last-child:after {content:""}.section-taxonomy-parent {margin-right:2rem}.section-taxonomy-toggle {cursor:pointer;height:0;margin:0;opacity:0;position:absolute;right:0;top:0;width:0}.section-taxonomy-toggle-label {cursor:pointer;display:inline-block;font-weight:bold;height:1.375rem;line-height:1rem;position:absolute;right:0;text-align:center;transform:rotate(90deg);transition:transform 0.25s;vertical-align:top;width:2rem;z-index:10}.section-taxonomy-toggle ~ .section-taxonomy-parent:after {display:none}.section-taxonomy-toggle:checked ~ .section-taxonomy-parent {font-weight:bold}.section-taxonomy-toggle:checked + .section-taxonomy-toggle-label {transform:rotate(-90deg)}.section-taxonomy-toggle:checked ~ .section-taxonomy-list-secondary {display:block}.using-keyboard .section-taxonomy-list a:focus {border-bottom:3px dashed red}@media screen and (min-width:45rem) {.section-taxonomy-list {column-count:2;column-gap:2rem;font-size:1.25rem;line-height:1.5rem;margin-bottom:1.5rem}.section-taxonomy-list-featured {column-count:1;font-size:1.75rem}.section-taxonomy-list-secondary {font-size:1.25rem;margin:1rem 0 1.75rem}.section-taxonomy-parent {margin-right:1.75rem}}@media screen and (min-width:60rem) {.section-taxonomy-list {column-count:3}.section-taxonomy-list-featured {column-count:2}}.section-pagination {border-top:1px solid #eee;display:flex;font-family:"Gibson",sans-serif;font-size:0.875rem;font-weight:400;margin:2rem 1rem;max-width:78rem}.section-pagination > * {flex-grow:2;margin:1rem 0}.section-pagination ul 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{color:#D73F33}.system-message {border-radius:0.5rem;box-shadow:0 0 1rem rgba(0,0,0,0.25);margin:0 0 2rem;overflow:hidden;padding:1rem;text-align:center}.system-message .message-header {border-radius:50%;display:inline-block;height:3rem;overflow:hidden;text-indent:100%;width:3rem}.system-message .error {background-color:#D73F33;display:inline-block;position:relative}.system-message .ok {background-color:#9CBA7B;position:relative}.system-message .error:before,.system-message .ok:before {color:#fff;content:"!";font-size:2rem;font-weight:700;left:0;line-height:3rem;position:absolute;text-align:center;text-indent:0;top:0;width:3rem}.system-message .ok:before {content:"✓"}.system-message p {display:block;margin:0.5rem 0 0}.system-message ul {list-style-type:none;margin:0;padding:0}@media screen and (min-width:60rem) {.system-message {display:flex;align-items:stretch;gap:1rem;padding:0}.system-message .message-header 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{margin:1rem 0;text-align:center}.book-list-slug {font-family:"Gibson",sans-serif;font-size:1rem;font-weight:600;margin:0.25rem 0;position:relative;text-transform:uppercase}.book-list-slug b {background-color:#fff;padding:0 0.5rem}.book-list-slug:before {background-color:#eee;content:"";height:1px;left:0;position:absolute;top:0.5rem;width:100%;z-index:-1}.book-list-header {font-size:1.75rem;font-weight:bold;line-height:1.25;margin:0.5rem 0}.book-list-description {font-size:0.875rem;font-style:italic;margin:0.5rem 0 2rem}.link-download,.link-share,.link-save {background-position:0.5rem center;background-repeat:no-repeat;background-size:20%;padding-left:2rem}.link-download {background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_download.svg);background-size:1.25rem}.link-share {background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_share.svg);background-size:1.25rem}.link-save {background-image:url(/extension/49thshelf_2020/design/49thshelf_2020/images/icons/icon_add-to-lists.svg);background-size:1.25rem}@media screen and (min-width:60rem) {.book-list-header {font-size:2.25rem}.book-list-description {font-size:1rem}}@media screen and (min-width:80rem) {.section-book-list .module-promo-thumb {height:13rem}.section-book-list .section-four-up .module-promo-thumb {height:28rem}}.section-hero {align-items:center;background-color:#000;background-position:center;background-repeat:no-repeat;background-size:cover;padding-top:7rem;width:100%}.section-hero:after {background:linear-gradient(rgba(0,0,0,0.8),rgba(0,0,0,0));content:"";height:8rem;left:0;padding:0;position:absolute;top:0;width:100%}.section-hero h1 {color:#fff;font-size:1.75rem;font-weight:900;letter-spacing:-0.25;margin:0 0 3rem;padding:1rem;text-align:center;text-shadow:0 0.125rem 0.5rem rgba(0,0,0,0.9)}.section-latest {background-image:linear-gradient(rgba(0,0,0,0) 0%,rgba(0,0,0,0.9) 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{list-style-type:none;padding:0}.section-blog-list-headlines li {border-top:1px solid #eee;font-size:1rem;margin:0;padding:0.75rem 0}.section-blog-list-headlines a {color:#222;font-weight:bold;text-decoration:none;transition:all 0.25s}.section-blog-list-headlines a:hover {color:#D73F33;font-weight:bold;text-decoration:underline}.section-blog-list-more {font-style:italic}.article-home .section-blog-depts,.article-blog-archive .section-blog-depts {margin:2rem 1rem 4rem;text-align:left}.article-home .section-book-list {margin:2rem 1rem}.article-home .section-blog-post-list {clear:both;margin:4rem 1rem}@media screen and (min-width:60rem) {.section-hero {display:flex;flex-direction:column;height:80vh;min-height:38rem;padding-top:0;position:relative}.section-hero h1 {font-size:3rem;margin:auto 0 12vh;padding:0 1rem}.section-latest {background-color:transparent;background-image:linear-gradient(rgba(0,0,0,0),rgba(0,0,0,0.75));margin:0;padding-bottom:0;width:100%}.section-promo-dept {margin:0}.section-header {font-size:1.75rem}.section-dept-header {font-size:1.5rem}.section-blog-header {border-top:1px solid #ddd;font-family:"Gibson",sans-serif;grid-column:span 2;margin:0;padding:1rem 0 0;text-transform:uppercase}.article-home .section-book-list {margin:4rem 1rem 6rem}}@media screen and (min-width:80rem) {.section-latest .section-editorial-header {padding:0}.article-home .section-blog-depts,.article-blog-archive .section-blog-depts {margin:0 auto}}.header-new-books {margin:2rem auto;max-width:78rem;padding:0 1rem}.header-new-books h1 {font-family:"Gibson",sans-serif;font-size:3rem;letter-spacing:-0.0625rem;margin:0.5rem 0}.header-new-books p:last-of-type {font-size:1.125rem;line-height:1.375;margin:0.5rem 0}.section-new-books-marquee {background-color:#f3f3f3;background-image:linear-gradient(rgba(0,0,0,0),rgba(0,0,0,0),rgba(0,0,0,0),rgba(0,0,0,0),rgba(0,0,0,0.175),rgba(0,0,0,0));background-blend-mode:luminosity;display:flex;height:20rem;justify-content:center;margin-bottom:2rem;overflow:hidden;padding:2rem 0;text-align:center}.section-new-books-marquee .carousel {max-width:100%}.section-new-books-marquee .carousel a {margin:0 auto}.section-new-books-marquee ul {list-style-type:none;margin:0;padding:0;white-space:nowrap}.section-new-books-marquee li {display:inline-block}.section-new-books-marquee a {align-items:flex-end;display:flex;height:16rem;margin:0 1rem;position:relative;top:0;transition:transform 0.25s;width:10rem;max-width:100%;will-change:transform}.section-new-books-marquee a:after {bottom:0;box-shadow:0 0rem 0.25rem 0.25rem rgba(0,0,0,0.25);content:"";display:block;left:0;height:0;right:0;position:absolute;transition:box-shadow 0.25s;width:100%;will-change:box-shadow;z-index:0}.section-new-books-marquee 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