:root {
    --pulse-panel: #ffffff;
    --pulse-text: #111827;
    --pulse-blue: #2563eb;
    --pulse-radius: 8px;
}

body {
    min-width: 0;
    color: var(--pulse-text);
}

.pulse-skip-link {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 100;
    transform: translateY(-150%);
    border-radius: calc(var(--pulse-radius) - 2px);
    background: var(--pulse-panel);
    color: var(--pulse-text);
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.18);
    transition: transform 120ms cubic-bezier(0.16, 1, 0.3, 1);
}

.pulse-skip-link:focus {
    transform: translateY(0);
    outline: 2px solid var(--pulse-blue);
    outline-offset: 2px;
}

.pulse-main {
    min-width: 0;
}

.pulse-main:focus {
    outline: none;
}

.pulse-shell {
    min-width: 0;
}

.pulse-shell-inner {
    min-width: 0;
}

.pulse-shell-row {
    min-width: 0;
    gap: 0.75rem;
}

.pulse-shell-primary,
.pulse-shell-actions,
.pulse-desktop-nav {
    min-width: 0;
}

.pulse-brand {
    align-items: center;
    display: inline-flex;
    min-height: 2.75rem;
    min-width: 0;
}

.pulse-shell-link,
.pulse-env-toggle,
.pulse-mobile-menu-button,
.pulse-dropdown-trigger {
    min-height: 2.5rem;
}

.pulse-shell-link,
.pulse-env-toggle,
.pulse-mobile-menu-button {
    transition-property: background-color, color, transform;
}

.pulse-shell-link:active,
.pulse-env-toggle:active,
.pulse-mobile-menu-button:active,
.pulse-dropdown-trigger:active,
.pulse-button:active {
    transform: scale(0.98);
}

.pulse-mobile-menu-panel {
    max-height: min(34rem, calc(100vh - 5rem));
    overflow-y: auto;
    width: min(22rem, calc(100vw - 1.5rem));
}

.pulse-mobile-menu-section + .pulse-mobile-menu-section {
    border-top: 1px solid rgba(148, 163, 184, 0.16);
}

.pulse-mobile-menu-label {
    color: #94a3b8;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0;
    padding: 0.625rem 0.875rem 0.25rem;
    text-transform: uppercase;
}

.pulse-mobile-menu-item {
    align-items: center;
    display: flex;
    gap: 0.625rem;
    min-height: 2.75rem;
    padding: 0.625rem 0.875rem;
}

.pulse-page {
    padding-inline: clamp(0.75rem, 2vw, 1rem);
}

.pulse-page-header {
    gap: 1rem;
}

.pulse-page-title {
    font-size: clamp(2rem, 7vw, 2.5rem);
    letter-spacing: 0;
    line-height: 0.95;
}

.pulse-books-toolbar {
    min-width: 0;
}

.pulse-books-control-grid {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    justify-content: flex-end;
    min-width: 0;
}

.pulse-search-control {
    flex: 1 1 18rem;
    min-width: min(18rem, 100%);
    order: 2;
}

.pulse-search-input,
.pulse-toolbar-button,
.pulse-mode-option {
    min-height: 2.75rem;
}

.pulse-mode-toggle {
    flex: 0 0 auto;
    order: 1;
}

.pulse-mode-option {
    transition-property: background-color, border-color, color, transform;
}

.pulse-mode-option:active {
    transform: scale(0.99);
}

.pulse-filter-cluster {
    align-items: center;
    display: inline-flex;
    flex: 0 0 auto;
    gap: 0.5rem;
    order: 3;
    position: relative;
}

.pulse-filter-menu {
    width: min(26rem, calc(100vw - 2rem));
}

.pulse-book-card-wrap {
    margin-bottom: 1rem;
    min-width: 0;
}

.pulse-book-card {
    min-width: 0;
    overflow: visible;
}

.pulse-book-card-layout,
.pulse-book-content-col,
.pulse-book-details,
.pulse-book-title {
    min-width: 0;
}

.pulse-book-card-layout {
    display: flex;
    height: 100%;
}

.pulse-book-media-col {
    width: 40%;
}

.pulse-book-content-col {
    width: 60%;
}

.pulse-book-media {
    border-radius: var(--pulse-radius) 0 0 var(--pulse-radius);
    display: flex;
    height: 100%;
    isolation: isolate;
    min-height: 12.5rem;
    width: 100%;
}

.pulse-book-details {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0.875rem;
}

.pulse-book-title {
    font-size: 1.125rem;
    line-height: 1.35;
    margin-bottom: 0.25rem;
}

.pulse-book-reference-image,
.pulse-book-live-image,
.pulse-book-hover-placeholder,
.pulse-book-hover-overlay,
.pulse-book-tooltip {
    transition-duration: 150ms;
    transition-property: opacity, transform;
}

.pulse-book-live-image,
.pulse-book-hover-placeholder,
.pulse-book-hover-overlay,
.pulse-book-tooltip {
    opacity: 0;
}

.pulse-book-status-row {
    min-width: 0;
}

.pulse-book-status-badge {
    max-width: 100%;
}

.pulse-book-status-text,
.pulse-book-title-text,
.pulse-book-author {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (hover: hover) and (pointer: fine) {
    .pulse-book-media:hover .pulse-live-fade-out,
    .pulse-book-media:focus .pulse-live-fade-out,
    .pulse-book-media:focus-within .pulse-live-fade-out {
        opacity: 0;
    }

    .pulse-book-media:hover .pulse-book-live-image,
    .pulse-book-media:hover .pulse-book-hover-placeholder,
    .pulse-book-media:hover .pulse-book-hover-overlay,
    .pulse-book-media:focus .pulse-book-live-image,
    .pulse-book-media:focus .pulse-book-hover-placeholder,
    .pulse-book-media:focus .pulse-book-hover-overlay,
    .pulse-book-media:focus-within .pulse-book-live-image,
    .pulse-book-media:focus-within .pulse-book-hover-placeholder,
    .pulse-book-media:focus-within .pulse-book-hover-overlay {
        opacity: 1;
    }

    .pulse-card-group:hover .pulse-book-complete-status,
    .pulse-card-group:focus-within .pulse-book-complete-status,
    .pulse-tooltip-trigger:hover + .pulse-book-tooltip,
    .pulse-tooltip-trigger:focus + .pulse-book-tooltip,
    .pulse-book-title-text:hover + .pulse-book-tooltip,
    .pulse-book-title-text:focus + .pulse-book-tooltip {
        opacity: 1;
    }
}

@media (hover: none), (pointer: coarse) {
    .pulse-book-live-image,
    .pulse-book-hover-placeholder,
    .pulse-book-hover-overlay,
    .pulse-book-tooltip {
        display: none;
    }

    .pulse-book-missing-status {
        opacity: 1;
    }
}

@media (max-width: 767px) {
    .pulse-shell-row {
        min-height: 3.75rem;
    }

    .pulse-brand {
        font-size: 1.125rem;
        margin-right: 0;
    }

    .pulse-shell-actions {
        gap: 0.5rem;
    }

    .pulse-env-toggle {
        min-height: 2.25rem;
        padding-inline: 0.625rem;
    }

    .pulse-page {
        margin-top: 1rem;
    }

    .pulse-page-header {
        margin-bottom: 1rem;
    }

    .pulse-books-control-grid {
        align-items: stretch;
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        justify-content: stretch;
    }

    .pulse-search-control {
        grid-column: 1 / -1;
        min-width: 0;
        order: 1;
        width: 100%;
    }

    .pulse-mode-toggle {
        order: 2;
    }

    .pulse-filter-cluster {
        justify-content: flex-end;
        order: 3;
    }

    .pulse-filter-cluster > .relative {
        position: static;
    }

    .pulse-toolbar-button,
    .pulse-mode-option,
    .pulse-search-input {
        min-height: 2.875rem;
    }

    .pulse-filter-menu {
        right: 0;
    }
}

@media (max-width: 640px) {
    #books-results {
        gap: 0.75rem;
    }

    #books-grid {
        gap: 0.75rem;
    }

    .pulse-book-card-wrap {
        margin-bottom: 0;
    }

    .pulse-book-card .pulse-book-card-layout {
        display: grid;
        grid-template-columns: minmax(5.75rem, 6.75rem) minmax(0, 1fr);
        min-height: 8.25rem;
    }

    .pulse-book-card .pulse-book-media-col,
    .pulse-book-card .pulse-book-content-col {
        width: 100%;
    }

    .pulse-book-card .pulse-book-media {
        border-radius: 8px 0 0 8px;
        height: 100%;
        min-height: 8.25rem;
    }

    .pulse-book-card .pulse-book-details {
        padding: 0.75rem;
    }

    .pulse-book-card .pulse-book-status-row {
        gap: 0.5rem;
        margin-bottom: 0.5rem;
    }

    .pulse-book-card .pulse-book-status-badge {
        font-size: 0.75rem;
        line-height: 1rem;
        padding: 0.25rem 0.5rem;
    }

    .pulse-book-card .pulse-book-title {
        font-size: 1rem;
        line-height: 1.18;
        margin-bottom: 0.125rem;
    }

    .pulse-book-card .pulse-book-author {
        font-size: 0.8125rem;
    }

    .pulse-book-card .pulse-book-metadata {
        gap: 0.75rem;
        margin-top: 0.625rem;
    }

    .pulse-book-card .pulse-book-publisher {
        display: none;
    }
}

@media (max-width: 420px) {
    .pulse-page {
        padding-inline: 0.625rem;
    }

    .pulse-books-control-grid {
        grid-template-columns: 1fr;
    }

    .pulse-filter-cluster {
        justify-content: stretch;
    }

    .pulse-filter-cluster > .relative,
    .pulse-filter-cluster > .pulse-toolbar-button {
        flex: 1 1 0;
    }

    .pulse-filter-cluster .pulse-toolbar-button {
        justify-content: center;
        width: 100%;
    }

    .pulse-filter-menu {
        width: 100%;
    }

    .pulse-book-card .pulse-book-card-layout {
        grid-template-columns: 5.5rem minmax(0, 1fr);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }

    .pulse-shell-link:active,
    .pulse-env-toggle:active,
    .pulse-mobile-menu-button:active,
    .pulse-dropdown-trigger:active,
    .pulse-button:active,
    .pulse-mode-option:active {
        transform: none;
    }
}