/* =============================================================
   Library Lending — Front-end Styles  v2.2
   Colour and column variables are injected by PHP via wp_head.
   ============================================================= */

/* ── CSS custom property defaults ── */
:root {
  --ll-primary:             #1a6fc4;
  --ll-primary-dark:        #145da0;
  --ll-primary-text:        #ffffff;
  --ll-secondary:           #f3f4f6;
  --ll-secondary-text:      #1a1a1a;
  --ll-available-bg:        #dcfce7;
  --ll-available-text:      #1a7f37;
  --ll-unavailable-bg:      #fee2e2;
  --ll-unavailable-text:    #b32d2e;
  --ll-cols-desktop:        4;
  --ll-cols-mobile:         2;
  --ll-text:                #1a1a1a;
  --ll-text-muted:          #6b7280;
  --ll-border:              #e5e7eb;
  --ll-bg:                  #f9fafb;
  --ll-white:               #ffffff;
  --ll-radius:              10px;
  --ll-radius-sm:           6px;
  --ll-shadow:              0 4px 24px rgba(0,0,0,.14);
  --ll-shadow-card:         0 2px 8px rgba(0,0,0,.07);
  --ll-transition:          .2s ease;
}

/* ── Wrapper ── */
.ll-catalog-wrap { font-family: inherit; color: var(--ll-text); }

/* ── Filter bar ── */
.ll-filters {
  display: flex; flex-wrap: wrap;
  gap: 10px; align-items: flex-end;
  margin-bottom: 20px;
}
.ll-filter-group { display: flex; flex-direction: column; flex: 1 1 180px; min-width: 150px; }
.screen-reader-text { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.ll-search-box     { position: relative; display: flex; align-items: center; }
.ll-search-box svg { position: absolute; left: 10px; width: 16px; height: 16px; color: var(--ll-text-muted); pointer-events: none; }
.ll-search-box input { padding-left: 34px !important; }

.ll-filters input[type="text"],
.ll-filters input[type="search"],
.ll-filters select {
  width: 100%; padding: 9px 12px;
  border: 1.5px solid var(--ll-border);
  border-radius: var(--ll-radius-sm);
  font-size: 14px; color: var(--ll-text);
  background: var(--ll-white); box-sizing: border-box;
  transition: border-color var(--ll-transition), box-shadow var(--ll-transition);
}
.ll-filters input:focus,
.ll-filters select:focus {
  outline: none;
  border-color: var(--ll-primary);
  box-shadow: 0 0 0 3px rgba(26,111,196,.15);
}

/* ── Results count ── */
.ll-results-count { font-size: 14px; color: var(--ll-text-muted); margin-bottom: 12px; min-height: 20px; }

/* ── Grid wrapper — needed so the overlay can be positioned over the grid ── */
.ll-grid-wrap { position: relative; }

/* ── Loading overlay — centred over the grid, always in the viewport ── */
.ll-loading-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border-radius: var(--ll-radius);
  min-height: 180px;
}
.ll-loading-overlay[hidden] { display: none !important; }

.ll-loading-text {
  font-size: 14px;
  color: var(--ll-text-muted);
  letter-spacing: .02em;
}

/* ── Spinner ── */
.ll-spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--ll-border);
  border-top-color: var(--ll-primary);
  border-radius: 50%;
  animation: ll-spin .75s linear infinite;
}
@keyframes ll-spin { to { transform: rotate(360deg); } }

/* ── Book grid ── */
.ll-book-grid {
  display: grid;
  grid-template-columns: repeat(var(--ll-cols-desktop), 1fr);
  gap: 20px;
  margin-bottom: 28px;
  min-height: 100px; /* so overlay has something to cover on first load */
}

/* Cards fade up when they arrive */
@keyframes ll-cards-in {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.ll-book-grid.ll-grid-fadein {
  animation: ll-cards-in .38s ease both;
}

/* ── Book card ── */
.ll-book-card {
  background: var(--ll-white);
  border: 1px solid var(--ll-border);
  border-radius: var(--ll-radius);
  overflow: hidden; display: flex; flex-direction: column;
  box-shadow: var(--ll-shadow-card);
  transition: transform var(--ll-transition), box-shadow var(--ll-transition);
}
.ll-book-card:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(0,0,0,.12); }

.ll-card-cover {
  position: relative; background: var(--ll-bg);
  height: 190px; overflow: hidden; cursor: pointer;
}
.ll-card-cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s ease; vertical-align: middle; }
.ll-book-card:hover .ll-card-cover img { transform: scale(1.04); }

.ll-cover-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg,#e8ecf0,#d0d8e2); }
.ll-cover-placeholder svg { width: 48px; height: 48px; color: #9aa3ad; }

.ll-card-body    { padding: 14px; display: flex; flex-direction: column; flex: 1; gap: 6px; }
.ll-card-title   { font-size: 15px; font-weight: 600; margin: 0; line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ll-card-author  { font-size: 13px; color: var(--ll-text-muted); margin: 0; }
.ll-card-actions { margin-top: auto; padding-top: 10px; }
.ll-card-actions .ll-btn { width: 100%; justify-content: center; }

/* ── Badges ── */
.ll-badge             { display: inline-block; font-size: 12px; font-weight: 600; padding: 3px 8px; border-radius: 20px; letter-spacing: .02em; }
.ll-badge-available   { background: var(--ll-available-bg);   color: var(--ll-available-text); }
.ll-badge-unavailable { background: var(--ll-unavailable-bg); color: var(--ll-unavailable-text); }

/* ── Buttons ── */
.ll-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 18px; border-radius: var(--ll-radius-sm);
  font-size: 14px; font-weight: 600; cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--ll-transition), color var(--ll-transition), border-color var(--ll-transition);
  text-decoration: none; line-height: 1;
}
.ll-btn-primary        { background: var(--ll-primary);   color: var(--ll-primary-text); border-color: var(--ll-primary); }
.ll-btn-primary:hover  { background: var(--ll-primary-dark); border-color: var(--ll-primary-dark); }
.ll-btn-outline        { background: transparent; border-color: var(--ll-primary); color: var(--ll-primary); }
.ll-btn-outline:hover  { background: var(--ll-primary); color: var(--ll-primary-text); }
.ll-btn-secondary      { background: var(--ll-secondary); color: var(--ll-secondary-text); border-color: var(--ll-border); }
.ll-btn-secondary:hover{ filter: brightness(.95); }
.ll-btn-disabled       { background: var(--ll-border); color: var(--ll-text-muted); cursor: not-allowed; border-color: var(--ll-border); }

/* ── Pagination ── */
.ll-pagination  { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 20px 0; }
.ll-page-btn    { min-width: 38px; height: 38px; border-radius: var(--ll-radius-sm); border: 1.5px solid var(--ll-border); background: var(--ll-white); font-size: 14px; font-weight: 500; cursor: pointer; transition: all var(--ll-transition); }
.ll-page-btn:hover    { border-color: var(--ll-primary); color: var(--ll-primary); }
.ll-page-active       { background: var(--ll-primary) !important; color: var(--ll-primary-text) !important; border-color: var(--ll-primary) !important; cursor: default; }
.ll-page-prev,
.ll-page-next         { font-size: 18px; font-weight: 400; color: var(--ll-primary); border-color: var(--ll-primary); }
.ll-page-ellipsis     { display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 38px; color: var(--ll-text-muted); font-size: 14px; user-select: none; }

/* ── No results ── */
.ll-no-results { text-align: center; padding: 48px 20px; color: var(--ll-text-muted); font-size: 15px; }

/* Honeypot */
.ll-hp-wrap { position: absolute; left: -9999px; width: 0; height: 0; overflow: hidden; opacity: 0; pointer-events: none; }

/* =============================================================
   Modals
   ============================================================= */
.ll-modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 99999; padding: 20px; box-sizing: border-box;
  animation: ll-fadein .15s ease;
}
.ll-modal-overlay[hidden] { display: none !important; }
@keyframes ll-fadein { from { opacity: 0; } to { opacity: 1; } }

.ll-modal {
  background: var(--ll-white); border-radius: var(--ll-radius);
  box-shadow: var(--ll-shadow); position: relative;
  max-height: 90vh; overflow-y: auto; width: 100%;
  animation: ll-slidein .2s ease;
}
@keyframes ll-slidein { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.ll-modal::-webkit-scrollbar       { width: 6px; }
.ll-modal::-webkit-scrollbar-thumb { background: var(--ll-border); border-radius: 3px; }

.ll-modal-close {
  position: absolute; top: 14px; right: 16px;
  width: 32px; height: 32px; border-radius: 50%;
  border: none; background: var(--ll-bg); font-size: 20px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--ll-text-muted); transition: background var(--ll-transition); z-index: 2;
}
.ll-modal-close:hover { background: var(--ll-border); color: var(--ll-text); }

/* Detail modal */
.ll-detail-modal  { max-width: 720px; }
.ll-detail-inner  { display: grid; grid-template-columns: 190px 1fr; gap: 28px; padding: 32px; }
.ll-detail-cover img { width: 100%; border-radius: var(--ll-radius-sm); box-shadow: var(--ll-shadow-card); }
.ll-detail-info h2   { margin: 0 0 6px; font-size: 22px; padding-right: 36px; line-height: 1.25; }
.ll-detail-author    { color: var(--ll-text-muted); font-size: 15px; margin: 0 0 4px; }
.ll-detail-genres    { font-size: 13px; color: var(--ll-text-muted); margin: 0 0 12px; }
.ll-detail-desc      { font-size: 14px; line-height: 1.65; margin-bottom: 16px; }
.ll-detail-avail     { margin-bottom: 16px; }
.ll-detail-actions .ll-btn { min-width: 160px; }

/* Form modal */
.ll-form-modal     { max-width: 440px; padding: 36px; }
.ll-form-modal h2  { margin: 0 0 4px; font-size: 20px; padding-right: 36px; }
.ll-form-book-name { color: var(--ll-text-muted); font-size: 14px; margin: 0 0 20px; font-style: italic; }

.ll-field       { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.ll-field label { font-size: 14px; font-weight: 600; }
.ll-field input {
  padding: 9px 12px; border: 1.5px solid var(--ll-border);
  border-radius: var(--ll-radius-sm); font-size: 14px;
  transition: border-color var(--ll-transition), box-shadow var(--ll-transition);
}
.ll-field input:focus { outline: none; border-color: var(--ll-primary); box-shadow: 0 0 0 3px rgba(26,111,196,.15); }
.ll-field-error { border-color: var(--ll-unavailable-text) !important; }

.ll-form-error {
  color: var(--ll-unavailable-text); font-size: 14px;
  background: var(--ll-unavailable-bg);
  border-radius: var(--ll-radius-sm); padding: 8px 12px; margin-bottom: 10px;
}
.ll-form-actions          { margin-top: 6px; }
.ll-form-actions .ll-btn  { width: 100%; justify-content: center; padding: 12px; font-size: 15px; }

/* Success state */
#ll-request-success  { text-align: center; padding: 16px 0; }
.ll-success-icon     { width: 56px; height: 56px; background: var(--ll-available-bg); color: var(--ll-available-text); border-radius: 50%; font-size: 26px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
#ll-success-message  { font-size: 15px; line-height: 1.6; margin-bottom: 20px; }

/* =============================================================
   Responsive
   ============================================================= */
@media (max-width: 768px) {
  .ll-book-grid     { grid-template-columns: repeat(var(--ll-cols-mobile), 1fr); gap: 14px; }
  .ll-detail-inner  { grid-template-columns: 1fr; padding: 24px; gap: 16px; }
  .ll-detail-cover  { max-width: 160px; }
  .ll-form-modal    { padding: 24px 20px; }

  /* Filter bar: stack vertically, all children stretch to full width */
  .ll-filters {
    flex-direction: column;
    align-items: stretch;  /* key: makes bare <button> fill the row too */
    gap: 10px;
  }
  .ll-filter-group {
    flex: 1 1 100%;
    min-width: 0;
    width: 100%;
  }
  /* Clear button inherits stretch from parent; enforce full width explicitly */
  .ll-filters > .ll-btn {
    width: 100%;
    justify-content: center;
    padding: 10px 12px;
    font-size: 14px;
    box-sizing: border-box;
  }
  /* All inputs and selects inside filters fill their container */
  .ll-filters input[type="text"],
  .ll-filters input[type="search"],
  .ll-filters select {
    width: 100%;
    box-sizing: border-box;
  }
}
@media (max-width: 420px) {
  .ll-book-grid  { gap: 10px; }
  .ll-card-title { font-size: 13px; }
  .ll-detail-modal, .ll-form-modal { max-width: 100%; }
}