/* Hallmark · pre-emit critique: P4 H4 E4 S4 R5 V4
 * macrostructure: Workbench (filter rail + content grid) · genre: editorial · nav: N6 Masthead
 * theme: custom (vibe: "archival, warm, Persianate visual heritage") · anchor: brand logo coral-red
 *   paper oklch(98.3% 0.004 75) · accent oklch(56% 0.19 27) warm · display Fraunces + body Poppins
 * contrast: pass · states: default/hover/focus/active on all interactive elements
 *
 * Eranshahr Library / NaarDoon — shared site styles.
 * Reads every color/space/type/motion value from tokens.css — no raw hex/px improvised here.
 * Layered on top of Bootstrap 5.3; keeps all existing class names/selectors intact.
 */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body {
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a {
  transition: color var(--eran-transition), opacity var(--eran-transition);
}

::selection {
  background: var(--color-selection);
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  transition: none;
}

/* -------------------------------------------------------------------------
   Header (N6 Masthead — logo over a centered rule-underlined nav)
   ------------------------------------------------------------------------- */

.eran-header {
  position: relative;
  z-index: 10;
  background: var(--color-paper-2);
  border-bottom: 1px solid var(--color-rule);
  padding: var(--space-md) 3vw;
}

/* Breathing room between the header and every page's content */
#layout-content {
  padding-top: var(--space-lg);
}

/* Stacked, centered header: logo on top, menu below */
.eran-header-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.eran-logo-link {
  display: inline-block;
  line-height: 0;
}

.eran-header img.eran-logo {
  width: auto;
  max-width: 100%;
  max-height: 84px;
  transition: transform var(--eran-transition);
}

.eran-header img.eran-logo:hover {
  transform: scale(1.03) rotate(-2deg);
}

.eran-topnav {
  width: 100%;
}

.eran-topnav .nav {
  gap: var(--space-3xs) var(--space-md);
}

.eran-header .nav-link {
  color: var(--color-ink) !important;
  font-weight: 500;
  font-size: 0.94rem;
  letter-spacing: 0.01em;
  position: relative;
  padding-bottom: 0.6rem;
  transition: color var(--eran-transition);
}

.eran-header .nav-link::after {
  content: "";
  position: absolute;
  left: 0.3rem;
  right: 0.3rem;
  bottom: 0.15rem;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--dur-base) var(--ease-out);
}

.eran-header .nav-link:hover,
.eran-header .nav-link:focus-visible {
  color: var(--color-accent-dark) !important;
}

.eran-header .nav-link:hover::after,
.eran-header .nav-link:focus-visible::after,
.eran-header .nav-link.active::after {
  transform: scaleX(1);
}

.eran-header .nav-link.active {
  color: var(--color-accent-dark) !important;
  font-weight: 600;
}

/* -------------------------------------------------------------------------
   Hero (homepage title + tagline)
   ------------------------------------------------------------------------- */

.eran-hero {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-2xs);
}

.eran-hero .h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-style: normal;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  overflow-wrap: anywhere;
  min-width: 0;
}

.eran-hero .h2 {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-ink-2);
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
}

/* Small hairline flourish under the tagline — a quiet, structural nod to the
   brand mark's radial petals, not a redrawn logo. */
.eran-hero::after {
  content: "";
  display: block;
  width: 3rem;
  height: 3px;
  margin: var(--space-md) auto 0;
  background: var(--color-accent);
  border-radius: var(--radius-pill);
}

/* -------------------------------------------------------------------------
   Search
   ------------------------------------------------------------------------- */

.eran-search .form-control {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  border: 1px solid var(--color-rule);
  background: var(--color-paper-2);
  color: var(--color-ink);
  padding: 0.65rem 1rem;
  transition: box-shadow var(--eran-transition), border-color var(--eran-transition);
}

.eran-search .form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.2rem var(--color-accent-ring);
}

.eran-search .btn {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: transform var(--eran-transition), background-color var(--eran-transition);
}

.eran-search .btn:active {
  transform: scale(0.97);
}

/* -------------------------------------------------------------------------
   Sidebar
   ------------------------------------------------------------------------- */

.eran-sidebar {
  padding: 0;
}

.eran-sidebar .nav-item {
  border-radius: var(--radius-sm);
}

.eran-sidebar .nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2xs);
  color: var(--color-ink);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  transition: background-color var(--eran-transition), color var(--eran-transition), padding-left var(--eran-transition);
}

.eran-sidebar .nav-link:hover,
.eran-sidebar .nav-link:focus-visible {
  background-color: var(--color-accent-wash-weak);
  color: var(--color-accent-dark);
  padding-left: var(--space-sm);
}

.eran-sidebar .nav-link .chevron {
  width: 0.7rem;
  height: 0.7rem;
  flex-shrink: 0;
  transition: transform var(--dur-base) var(--ease-in-out);
}

.eran-sidebar .nav-link[aria-expanded="true"] .chevron {
  transform: rotate(90deg);
}

.eran-sidebar .submenu {
  list-style: none;
  margin: 0.15rem 0 0.35rem;
  padding-left: 1.1rem;
  padding-right: 0.5rem;
  border-left: 2px solid var(--color-rule);
  margin-left: 0.6rem;
}

.eran-sidebar .submenu .nav-link {
  padding: 0.4rem 0.6rem;
  font-size: 0.92rem;
  color: var(--color-ink-2);
}

.eran-sidebar .submenu .nav-link:hover,
.eran-sidebar .submenu .nav-link:focus-visible {
  color: var(--color-accent-dark);
}

.eran-sidebar hr {
  margin: var(--space-xs) 0;
  opacity: 0.5;
  border-color: var(--color-rule);
}

.eran-sidebar-stats {
  background: var(--color-paper-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  box-shadow: var(--shadow-sm);
}

.eran-sidebar-stats .btn {
  border-radius: var(--radius-sm) !important;
  transition: transform var(--eran-transition), box-shadow var(--eran-transition);
}

.eran-sidebar-stats .btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* -------------------------------------------------------------------------
   Image cards
   ------------------------------------------------------------------------- */

.eran-card {
  border: 1px solid var(--color-rule) !important;
  border-radius: var(--radius-md) !important;
  background: var(--color-paper-2);
  overflow: hidden;
  transition: transform var(--eran-transition), box-shadow var(--eran-transition), border-color var(--eran-transition);
}

.eran-card:hover,
.eran-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--color-accent-wash) !important;
}

.eran-card .card-img-top-eran {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--color-paper-3);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: background-color var(--eran-transition);
}

.eran-card:hover .card-img-top-eran {
  background: var(--color-accent-tint);
}

.eran-card .card-img-top-eran img {
  max-width: 82%;
  max-height: 82%;
  object-fit: contain;
  transition: transform 260ms var(--ease-out);
}

.eran-card:hover .card-img-top-eran img {
  transform: scale(1.05);
}

.eran-card .card-title-text {
  color: var(--color-ink);
  font-size: 0.85em;
  font-weight: 500;
  margin-bottom: 0.15rem;
}

.eran-card .blockquote-footer {
  margin-top: 0;
  margin-bottom: 0.4rem;
  color: var(--color-ink-2);
}

.eran-card .blockquote-footer::before {
  color: var(--color-ink-2);
}

.eran-card hr {
  margin: 0.6rem 0;
  opacity: 0.4;
  border-color: var(--color-rule);
}

.eran-download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  color: var(--color-accent);
  background: var(--color-accent-wash-weak);
  transition: background-color var(--eran-transition), transform var(--eran-transition), color var(--eran-transition);
}

.eran-download-link:hover,
.eran-download-link:focus-visible {
  background: var(--color-accent-wash);
  color: var(--color-accent-dark);
  transform: translateY(-2px);
}

.eran-download-link:active {
  transform: translateY(0);
}

.eran-download-link svg {
  transition: transform 200ms var(--ease-out);
}

.eran-download-link:hover svg {
  transform: translateY(1px);
}

.download-counter {
  color: var(--color-ink-2);
}

/* -------------------------------------------------------------------------
   Buttons & form controls (light global smoothing)
   ------------------------------------------------------------------------- */

.btn {
  border-radius: var(--radius-sm);
  transition: transform var(--eran-transition), box-shadow var(--eran-transition), background-color var(--eran-transition), border-color var(--eran-transition), color var(--eran-transition);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* Anchor Bootstrap's primary action color on the brand accent instead of
   the framework default, everywhere .btn-primary / .bg-primary appear. */
.btn-primary {
  --bs-btn-bg: var(--color-accent);
  --bs-btn-border-color: var(--color-accent);
  --bs-btn-hover-bg: var(--color-accent-dark);
  --bs-btn-hover-border-color: var(--color-accent-dark);
  --bs-btn-active-bg: var(--color-accent-dark);
  --bs-btn-active-border-color: var(--color-accent-dark);
  --bs-btn-disabled-bg: var(--color-accent);
  --bs-btn-disabled-border-color: var(--color-accent);
  --bs-btn-focus-shadow-rgb: 197, 59, 46;
}

.btn-outline-dark:hover,
.btn-outline-dark:focus-visible {
  --bs-btn-hover-bg: var(--color-ink);
  --bs-btn-hover-border-color: var(--color-ink);
}

.form-control,
.form-select {
  border-radius: var(--radius-sm);
  transition: border-color var(--eran-transition), box-shadow var(--eran-transition);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.2rem var(--color-accent-ring);
}

/* -------------------------------------------------------------------------
   Alerts
   ------------------------------------------------------------------------- */

.alert {
  border-radius: var(--radius-sm);
  animation: eran-fade-in var(--dur-base) var(--ease-out);
}

@keyframes eran-fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* -------------------------------------------------------------------------
   Pagination
   ------------------------------------------------------------------------- */

.pagination .page-link {
  border-radius: var(--radius-sm);
  margin: 0 0.15rem;
  border: 1px solid var(--color-rule);
  color: var(--color-ink);
  transition: background-color var(--eran-transition), color var(--eran-transition), transform var(--eran-transition);
}

.pagination .page-item:not(.disabled) .page-link:hover {
  transform: translateY(-1px);
  color: var(--color-accent-dark);
  border-color: var(--color-accent-wash);
}

.pagination .page-item.active .page-link {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

/* -------------------------------------------------------------------------
   Loading indicator (replaces external GIF)
   ------------------------------------------------------------------------- */

.eran-loading-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1080;
  align-items: center;
  justify-content: center;
  background: color-mix(in oklch, var(--color-paper) 60%, transparent);
  backdrop-filter: blur(2px);
}

.eran-loading-overlay.is-visible {
  display: flex;
}

.eran-spinner {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 4px solid var(--color-accent-wash);
  border-top-color: var(--color-accent);
  animation: eran-spin 800ms linear infinite;
}

@keyframes eran-spin {
  to {
    transform: rotate(360deg);
  }
}

/* -------------------------------------------------------------------------
   Footer
   ------------------------------------------------------------------------- */

.eran-footer {
  border-top: 1px solid var(--color-rule);
  padding: var(--space-md) 3vw;
  color: var(--color-ink-2);
  font-size: 0.9rem;
}

.eran-footer a {
  color: var(--color-ink-2);
}

.eran-footer a:hover,
.eran-footer a:focus-visible {
  color: var(--color-accent-dark);
}

/* -------------------------------------------------------------------------
   Misc
   ------------------------------------------------------------------------- */

img {
  transition: opacity var(--eran-transition);
}

/* -------------------------------------------------------------------------
   Home page — editorial masthead + Workbench browse rail
   (scoped to .eran-home so it never leaks into other pages)
   ------------------------------------------------------------------------- */

/* Masthead — compact banner; the library grid stays near the top of the page.
   Title + tagline sit on the left, live counts on the right; the search spans
   full width beneath them so it reads as the primary instrument. */
.eran-masthead {
  padding: var(--space-md) var(--space-sm) var(--space-sm);
}

.eran-masthead-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm) var(--space-md);
}

.eran-masthead-intro {
  min-width: 0;
}

.eran-masthead .eran-eyebrow {
  display: block;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-3xs);
}

.eran-masthead h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-style: normal;
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0;
  overflow-wrap: anywhere;
  min-width: 0;
}

.eran-masthead .eran-lead {
  max-width: 56ch;
  margin: var(--space-2xs) 0 0;
  font-size: var(--text-md);
  line-height: 1.5;
  color: var(--color-ink-2);
}

/* Search — full-width primary instrument under the intro row */
.eran-masthead .eran-search {
  margin: var(--space-md) 0 0;
}

.eran-masthead .eran-search .input-group {
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-sm);
}

.eran-masthead .eran-search .form-control {
  border-right: 0;
  padding: 0.7rem 1.05rem;
  font-size: var(--text-md);
}

.eran-masthead .eran-search .btn {
  padding-inline: var(--space-md);
  font-weight: 500;
}

/* Real-data proof bar — no invented metrics; numbers come from the DB.
   Sits inline to the right of the title on wide screens. */
.eran-proofbar {
  display: flex;
  align-items: stretch;
  gap: 0 var(--space-md);
  flex-shrink: 0;
}

.eran-proof {
  padding: 0 var(--space-2xs);
  text-align: center;
}

.eran-proof + .eran-proof {
  border-left: 1px solid var(--color-rule);
  padding-left: var(--space-md);
}

.eran-proof .eran-proof-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  line-height: 1.1;
  color: var(--color-ink);
}

.eran-proof .eran-proof-label {
  display: block;
  margin-top: 2px;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

@media (max-width: 575.98px) {
  .eran-proofbar {
    width: 100%;
    justify-content: flex-start;
    gap: 0 var(--space-sm);
  }
  .eran-proof {
    text-align: left;
    padding-left: 0;
  }
  .eran-proof + .eran-proof {
    padding-left: var(--space-sm);
  }
}

/* Browse region — snug under the masthead, no dead gap before the grid */
.eran-browse {
  margin-top: var(--space-md);
}

/* Browse rail (Workbench left column) */
@media (min-width: 992px) {
  .eran-rail {
    position: sticky;
    top: var(--space-md);
  }
}

.eran-rail-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-ink);
  margin: 0 0 var(--space-2xs);
}

.eran-rail-panel {
  background: var(--color-paper-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  box-shadow: var(--shadow-sm);
}

.eran-rail-panel + .eran-rail-panel {
  margin-top: var(--space-sm);
}

.eran-rail-report {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3xs);
  margin-top: var(--space-sm);
  padding-left: var(--space-2xs);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.eran-rail-report:hover,
.eran-rail-report:focus-visible {
  color: var(--color-accent-dark);
}

/* Results header */
.eran-results-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-2xs);
  border-bottom: 1px solid var(--color-rule);
}

.eran-results-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  color: var(--color-ink);
  margin: 0;
}

.eran-results-trail {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.eran-results-trail .eran-trail-crumb {
  color: var(--color-accent-dark);
  font-weight: 500;
}

/* Sort control — sits opposite the results heading in the header row */
.eran-sort {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  flex-shrink: 0;
}

.eran-sort-label {
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  margin: 0;
  white-space: nowrap;
}

.eran-sort-select {
  width: auto;
  min-width: 10.5rem;
  border: 1px solid var(--color-rule);
  background-color: var(--color-paper-2);
  color: var(--color-ink);
  font-size: var(--text-sm);
  cursor: pointer;
}

.eran-sort-select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.2rem var(--color-accent-ring);
}

/* Contribute band — a deliberate closing section, not loose <br> text */
.eran-contribute-band {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  background: var(--color-accent-wash-weak);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
}

.eran-contribute-band h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
  color: var(--color-ink);
  margin: 0 0 var(--space-2xs);
}

.eran-contribute-band p {
  max-width: 48ch;
  margin: 0 auto var(--space-md);
  color: var(--color-ink-2);
}