/*
 * 電子書學習專區 v1.1.0
 * - 僅作用於 #ebook-app-root 與測試頁 .ebk-test-page
 * - 不設定字級大小，沿用 WordPress 既有字級設定
 * - 首頁 Hero + Portal 視覺升級
 * - 手機書卡改為橫式資訊卡，降低長頁面負擔
 * - 不依賴 jQuery / Elementor JS
 */

.ebk-test-page {
  margin: 0;
  background: #f4f7f7;
}

#ebook-app-root {
  --ebk-primary: #006b63;
  --ebk-primary-dark: #004d48;
  --ebk-primary-soft: #e8f3f2;
  --ebk-learning: #1f4f8f;
  --ebk-learning-soft: #edf3fb;
  --ebk-health: #8a4300;
  --ebk-health-soft: #fff3e9;
  --ebk-text: #1f2933;
  --ebk-muted: #4b5563;
  --ebk-border: #cbd5df;
  --ebk-soft: #f4f7f7;
  --ebk-card: #ffffff;
  --ebk-focus: #b54708;
  --ebk-shadow: 0 12px 32px rgba(31, 41, 51, 0.1);
  --ebk-shadow-strong: 0 20px 48px rgba(20, 74, 70, 0.14);
  --ebk-radius-xl: 2rem;
  --ebk-radius-lg: 1.5rem;
  --ebk-radius-md: 1rem;
  --ebk-space-1: 0.5rem;
  --ebk-space-2: 0.75rem;
  --ebk-space-3: 1rem;
  --ebk-space-4: 1.5rem;
  --ebk-space-5: 2rem;
  --ebk-space-6: 3rem;
  --ebk-max: 1200px;

  color: var(--ebk-text);
  background: var(--ebk-soft);
  line-height: 1.6;
  overflow-wrap: anywhere;
}

#ebook-app-root,
#ebook-app-root * {
  box-sizing: border-box;
}

#ebook-app-root img,
#ebook-app-root svg {
  display: block;
  max-width: 100%;
}

#ebook-app-root img {
  height: auto;
}

#ebook-app-root a {
  color: inherit;
}

#ebook-app-root [hidden] {
  display: none !important;
}

#ebook-app-root .ebk-shell {
  width: min(100% - 2rem, var(--ebk-max));
  margin-inline: auto;
}

#ebook-app-root .ebk-sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

#ebook-app-root .ebk-skip-link {
  position: fixed;
  z-index: 9999;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.75rem 1rem;
  background: #ffffff;
  color: var(--ebk-primary-dark);
  border: 2px solid var(--ebk-primary-dark);
  border-radius: 0.5rem;
  transform: translateY(-160%);
}

#ebook-app-root .ebk-skip-link:focus {
  transform: translateY(0);
}

#ebook-app-root .ebk-site-header {
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--ebk-border);
}

#ebook-app-root .ebk-header-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--ebk-space-4);
  align-items: center;
  padding-block: var(--ebk-space-3);
}

#ebook-app-root .ebk-hospital-link,
#ebook-app-root .ebk-site-title a,
#ebook-app-root .ebk-primary-nav a,
#ebook-app-root .ebk-breadcrumb a,
#ebook-app-root .ebk-read-link {
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.18em;
}

#ebook-app-root .ebk-hospital-link {
  display: inline-flex;
  align-items: center;
  border-radius: 0.5rem;
}

#ebook-app-root .ebk-logo {
  width: min(230px, 42vw);
}

#ebook-app-root .ebk-site-title {
  margin: 0;
  font-weight: 800;
  color: var(--ebk-primary-dark);
}

#ebook-app-root .ebk-site-title a {
  text-decoration: none;
}

#ebook-app-root .ebk-primary-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--ebk-space-2) var(--ebk-space-3);
}

#ebook-app-root .ebk-primary-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding-inline: 0.75rem;
  border-radius: 0.5rem;
}

#ebook-app-root .ebk-main {
  min-height: 60vh;
}

#ebook-app-root .ebk-portal,
#ebook-app-root .ebk-section {
  padding-block: var(--ebk-space-6);
}

/* 首頁 Hero：提升入口質感，但保持內容精簡 */
#ebook-app-root .ebk-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(16rem, 0.85fr);
  gap: var(--ebk-space-5);
  align-items: center;
  min-height: 18rem;
  margin-bottom: var(--ebk-space-5);
  padding: clamp(1.5rem, 4vw, 3.25rem);
  overflow: hidden;
  border: 1px solid rgba(0, 107, 99, 0.14);
  border-radius: var(--ebk-radius-xl);
  background:
    radial-gradient(circle at 16% 18%, rgba(255, 255, 255, 0.92) 0 9%, transparent 10%),
    linear-gradient(135deg, #f9fffe 0%, #e9f6f4 46%, #d9ecf1 100%);
  box-shadow: var(--ebk-shadow-strong);
}

#ebook-app-root .ebk-hero::before,
#ebook-app-root .ebk-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  border-radius: 999px;
  pointer-events: none;
}

#ebook-app-root .ebk-hero::before {
  width: 18rem;
  height: 18rem;
  right: -4rem;
  bottom: -9rem;
  background: rgba(0, 107, 99, 0.09);
}

#ebook-app-root .ebk-hero::after {
  width: 11rem;
  height: 11rem;
  left: 42%;
  top: -6rem;
  background: rgba(31, 79, 143, 0.08);
}

#ebook-app-root .ebk-hero-copy {
  min-width: 0;
}

#ebook-app-root .ebk-hero-eyebrow {
  display: inline-flex;
  margin-bottom: var(--ebk-space-2);
  padding: 0.35rem 0.8rem;
  border: 1px solid rgba(0, 107, 99, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--ebk-primary-dark);
  font-weight: 700;
}

#ebook-app-root .ebk-hero-title {
  margin-block: 0 var(--ebk-space-2);
  color: var(--ebk-primary-dark);
  line-height: 1.25;
}

#ebook-app-root .ebk-hero-desc {
  margin: 0;
  color: var(--ebk-muted);
  font-weight: 600;
}

#ebook-app-root .ebk-hero-art {
  justify-self: end;
  width: min(100%, 26rem);
}

#ebook-app-root .ebk-hero-art svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 18px 26px rgba(0, 77, 72, 0.12));
}

/* Portal */
#ebook-app-root .ebk-portal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--ebk-space-4);
}

#ebook-app-root .ebk-portal-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 14rem;
  padding: var(--ebk-space-5);
  overflow: hidden;
  border: 1px solid var(--ebk-border);
  border-radius: var(--ebk-radius-lg);
  background: var(--ebk-card);
  box-shadow: var(--ebk-shadow);
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

#ebook-app-root .ebk-portal-card::after {
  content: "";
  position: absolute;
  width: 7rem;
  height: 7rem;
  right: -2.5rem;
  bottom: -3.5rem;
  border-radius: 999px;
  opacity: 0.65;
  pointer-events: none;
}

#ebook-app-root .ebk-portal-card--learning {
  border-top: 4px solid var(--ebk-learning);
}

#ebook-app-root .ebk-portal-card--learning::after {
  background: var(--ebk-learning-soft);
}

#ebook-app-root .ebk-portal-card--health {
  border-top: 4px solid var(--ebk-health);
}

#ebook-app-root .ebk-portal-card--health::after {
  background: var(--ebk-health-soft);
}

#ebook-app-root .ebk-portal-card--wholecare {
  border-top: 4px solid var(--ebk-primary);
}

#ebook-app-root .ebk-portal-card--wholecare::after {
  background: var(--ebk-primary-soft);
}

#ebook-app-root .ebk-portal-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 42px rgba(31, 41, 51, 0.14);
}

#ebook-app-root .ebk-portal-icon {
  width: 3.5rem;
  height: 3.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--ebk-space-3);
  border-radius: 1rem;
  background: var(--ebk-primary-soft);
  color: var(--ebk-primary-dark);
}

#ebook-app-root .ebk-portal-card--learning .ebk-portal-icon {
  background: var(--ebk-learning-soft);
  color: var(--ebk-learning);
}

#ebook-app-root .ebk-portal-card--health .ebk-portal-icon {
  background: var(--ebk-health-soft);
  color: var(--ebk-health);
}

#ebook-app-root .ebk-portal-icon svg {
  width: 2rem;
  height: 2rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

#ebook-app-root .ebk-portal-copy {
  display: grid;
  gap: var(--ebk-space-1);
  position: relative;
  z-index: 1;
}

#ebook-app-root .ebk-portal-title {
  font-weight: 800;
  color: var(--ebk-text);
}

#ebook-app-root .ebk-portal-desc {
  color: var(--ebk-muted);
}

#ebook-app-root .ebk-portal-action {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding-top: var(--ebk-space-4);
  color: var(--ebk-primary-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

/* 館內 */
#ebook-app-root .ebk-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ebk-space-1);
  align-items: center;
  margin-bottom: var(--ebk-space-4);
  color: var(--ebk-muted);
}

#ebook-app-root .ebk-section-heading {
  margin-bottom: var(--ebk-space-5);
}

#ebook-app-root .ebk-section-heading h2,
#ebook-app-root .ebk-section-heading p {
  margin-top: 0;
}

#ebook-app-root .ebk-section-heading h2 {
  margin-bottom: var(--ebk-space-1);
  color: var(--ebk-primary-dark);
}

#ebook-app-root .ebk-section-heading p {
  margin-bottom: 0;
  color: var(--ebk-muted);
}

#ebook-app-root .ebk-toolbar {
  display: grid;
  grid-template-columns: minmax(14rem, 1fr) minmax(0, 2fr);
  gap: var(--ebk-space-4);
  align-items: end;
  margin-bottom: var(--ebk-space-3);
  padding: var(--ebk-space-4);
  border: 1px solid var(--ebk-border);
  border-radius: var(--ebk-radius-md);
  background: #ffffff;
}

#ebook-app-root .ebk-search-group {
  display: grid;
  gap: var(--ebk-space-1);
}

#ebook-app-root .ebk-search-group label,
#ebook-app-root .ebk-filter-group legend {
  font-weight: 700;
}

#ebook-app-root .ebk-search-input {
  width: 100%;
  min-height: 44px;
  padding: 0.65rem 0.8rem;
  color: var(--ebk-text);
  background: #ffffff;
  border: 1px solid #7b8794;
  border-radius: 0.5rem;
  font: inherit;
}

#ebook-app-root .ebk-filter-group {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

#ebook-app-root .ebk-filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ebk-space-2);
  margin-top: var(--ebk-space-1);
}

#ebook-app-root .ebk-filter-button {
  min-height: 44px;
  padding: 0.6rem 1rem;
  border: 1px solid #7b8794;
  border-radius: 999px;
  background: #ffffff;
  color: var(--ebk-text);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

#ebook-app-root .ebk-filter-button:hover {
  border-color: var(--ebk-primary-dark);
}

#ebook-app-root .ebk-filter-button.is-active,
#ebook-app-root .ebk-filter-button[aria-pressed="true"] {
  background: var(--ebk-primary-dark);
  border-color: var(--ebk-primary-dark);
  color: #ffffff;
}

#ebook-app-root .ebk-result-count {
  margin-block: var(--ebk-space-3) var(--ebk-space-4);
  color: var(--ebk-muted);
  font-weight: 700;
}

#ebook-app-root .ebk-book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--ebk-space-4);
  align-items: stretch;
}

#ebook-app-root .ebk-book-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: var(--ebk-space-4);
  border: 1px solid var(--ebk-border);
  border-radius: var(--ebk-radius-lg);
  background: var(--ebk-card);
  box-shadow: 0 8px 24px rgba(31, 41, 51, 0.08);
}

#ebook-app-root .ebk-book-cover-wrap {
  width: min(100%, 13rem);
  margin-inline: auto;
  margin-bottom: var(--ebk-space-4);
  aspect-ratio: 5 / 7;
  border-radius: 0.75rem;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(31, 41, 51, 0.14);
  background: #eef2f4;
}

#ebook-app-root .ebk-book-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#ebook-app-root .ebk-book-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
}

#ebook-app-root .ebk-book-category {
  align-self: flex-start;
  display: inline-flex;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--ebk-primary-soft);
  color: var(--ebk-primary-dark);
  font-weight: 700;
}

#ebook-app-root .ebk-book-title {
  margin-block: var(--ebk-space-3) var(--ebk-space-2);
  color: var(--ebk-text);
}

#ebook-app-root .ebk-book-desc {
  margin-top: 0;
  margin-bottom: var(--ebk-space-4);
  color: var(--ebk-muted);
}

#ebook-app-root .ebk-read-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: stretch;
  margin-top: auto;
  padding: 0.65rem 1rem;
  border: 2px solid var(--ebk-primary-dark);
  border-radius: 999px;
  background: var(--ebk-primary-dark);
  color: #ffffff;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

#ebook-app-root .ebk-read-link:hover {
  background: #ffffff;
  color: var(--ebk-primary-dark);
}

#ebook-app-root .ebk-no-results {
  margin-top: var(--ebk-space-4);
  padding: var(--ebk-space-4);
  border: 1px solid var(--ebk-border);
  border-radius: var(--ebk-radius-md);
  background: #ffffff;
  color: var(--ebk-muted);
}

#ebook-app-root :where(a, button, input, [tabindex]):focus-visible {
  outline: 3px solid var(--ebk-focus);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  #ebook-app-root .ebk-portal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #ebook-app-root .ebk-portal-card--wholecare {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  #ebook-app-root .ebk-header-inner {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  #ebook-app-root .ebk-primary-nav {
    justify-content: flex-start;
  }

  #ebook-app-root .ebk-toolbar {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  #ebook-app-root .ebk-hero {
    grid-template-columns: minmax(0, 1fr) minmax(12rem, 0.7fr);
  }
}

/* 手機：同一份 DOM 改為橫式書卡，減少垂直長度 */
@media (max-width: 620px) {
  #ebook-app-root .ebk-shell {
    width: min(100% - 1rem, var(--ebk-max));
  }

  #ebook-app-root .ebk-portal,
  #ebook-app-root .ebk-section {
    padding-block: var(--ebk-space-4);
  }

  #ebook-app-root .ebk-hero {
    display: block;
    min-height: 0;
    padding: var(--ebk-space-4);
  }

  #ebook-app-root .ebk-hero-copy {
    position: relative;
    z-index: 2;
    max-width: 72%;
  }

  #ebook-app-root .ebk-hero-art {
    position: absolute;
    z-index: 1;
    right: -1.5rem;
    bottom: -1.25rem;
    width: 52%;
    opacity: 0.46;
  }

  #ebook-app-root .ebk-portal-grid {
    grid-template-columns: 1fr;
  }

  #ebook-app-root .ebk-portal-card,
  #ebook-app-root .ebk-toolbar {
    padding: var(--ebk-space-3);
  }

  #ebook-app-root .ebk-portal-card,
  #ebook-app-root .ebk-portal-card--wholecare {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: var(--ebk-space-3);
    row-gap: var(--ebk-space-1);
    min-height: 0;
    grid-column: auto;
  }

  #ebook-app-root .ebk-portal-icon {
    grid-row: 1 / span 2;
    margin-bottom: 0;
  }

  #ebook-app-root .ebk-portal-action {
    grid-column: 2;
    margin-top: 0;
    padding-top: var(--ebk-space-1);
  }

  #ebook-app-root .ebk-book-grid {
    grid-template-columns: 1fr;
    gap: var(--ebk-space-3);
  }

  #ebook-app-root .ebk-book-card {
    display: grid;
    grid-template-columns: minmax(6.5rem, 32%) minmax(0, 1fr);
    gap: var(--ebk-space-3);
    align-items: stretch;
    padding: var(--ebk-space-3);
    border-radius: var(--ebk-radius-md);
  }

  #ebook-app-root .ebk-book-cover-wrap {
    width: 100%;
    margin: 0;
    align-self: start;
    box-shadow: 0 8px 18px rgba(31, 41, 51, 0.13);
  }

  #ebook-app-root .ebk-book-body {
    min-height: 100%;
  }

  #ebook-app-root .ebk-book-title {
    margin-block: var(--ebk-space-2) var(--ebk-space-1);
  }

  #ebook-app-root .ebk-book-desc {
    display: -webkit-box;
    margin-bottom: var(--ebk-space-2);
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    line-clamp: 3;
  }

  #ebook-app-root .ebk-read-link {
    align-self: flex-start;
    width: 100%;
    margin-top: auto;
  }
}

@media (max-width: 360px) {
  #ebook-app-root .ebk-book-card {
    grid-template-columns: minmax(5.75rem, 30%) minmax(0, 1fr);
    gap: var(--ebk-space-2);
  }

  #ebook-app-root .ebk-book-desc {
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }
}

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

  #ebook-app-root .ebk-portal-card:hover {
    transform: none;
  }
}

@media (forced-colors: active) {
  #ebook-app-root .ebk-filter-button.is-active,
  #ebook-app-root .ebk-filter-button[aria-pressed="true"],
  #ebook-app-root .ebk-read-link,
  #ebook-app-root .ebk-portal-card {
    border: 2px solid ButtonText;
  }

  #ebook-app-root .ebk-hero {
    border: 2px solid CanvasText;
  }
}