/* Riparia.US — Production Stylesheet */

:root {
  --bg-color: #fcfbf9;
  --surface-color: #f4f2ee;
  --surface-alt: #ece8e1;
  --border-color: #dfdbd2;
  --border-dark: #222222;
  --text-main: #191816;
  --text-muted: #646059;
  --text-light: #8e897f;
  --accent: #8b322c; /* Subdued vermilion/oxblood */
  
  --font-serif: 'EB Garamond', Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
  --font-display: 'Cinzel', serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-serif);
  font-size: 1.125rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4.5rem;
}

.brand-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.15em;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
}

.brand-logo span {
  font-weight: 400;
  color: var(--text-light);
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--text-muted);
  margin-left: 2rem;
  transition: color 0.15s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text-main);
}

/* Hero Feature */
.hero-feature {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4.5rem;
  align-items: center;
}

.book-stage {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  aspect-ratio: 4 / 5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  box-shadow: inset 0 0 40px rgba(0,0,0,0.02);
}

.book-placeholder {
  width: 70%;
  height: 85%;
  background-color: #2c2f33;
  color: #fff;
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
  box-shadow: 12px 18px 30px rgba(0, 0, 0, 0.18);
  position: relative;
  border-left: 4px solid #1c1e20;
}

.binding-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #d1d5db;
}

.meta-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

/* Ensure the parent frame clips overflow and centers content */
.book-stage {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  aspect-ratio: 4 / 5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  overflow: hidden;
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.02);
}

/* Constrain the 1800x2700 image to the stage boundary */
.book-cover-img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  /* Three-dimensional physical volume simulation */
  border-left: 3px solid rgba(0, 0, 0, 0.35); /* Book hinge shadow */
  box-shadow: 10px 16px 28px rgba(0, 0, 0, 0.22),
              2px 4px 8px rgba(0, 0, 0, 0.12);
  transition: transform 0.25s cubic-bezier(0.2, 0, 0.2, 1);
}

.book-cover-img:hover {
  transform: translateY(-2px);
}

.book-title {
  font-family: var(--font-serif);
  font-size: 2.35rem;
  line-height: 1.15;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.book-subtitle {
  font-style: italic;
  color: var(--text-muted);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.book-author {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.book-blurb {
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 2rem;
}

/* Colophon Block */
.colophon-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 2rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.colophon-summary dt {
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 0.2rem;
  letter-spacing: 0.05em;
}

.colophon-summary dd {
  color: var(--text-main);
}

.action-row {
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: all 0.15s ease;
}

.btn-primary {
  background-color: var(--text-main);
  color: #fff;
  border: 1px solid var(--text-main);
}

.btn-primary:hover {
  background-color: var(--accent);
  border-color: var(--accent);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--text-main);
}

/* Catalog Section */
.catalog-section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.catalog-filter {
  display: flex;
  gap: 1rem;
}

.filter-btn {
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-light);
  cursor: pointer;
}

.filter-btn.active,
.filter-btn:hover {
  color: var(--text-main);
  text-decoration: underline;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.catalog-card {
  border: 1px solid var(--border-color);
  background-color: var(--surface-color);
  display: flex;
  flex-direction: column;
}

.card-visual {
  aspect-ratio: 4 / 3;
  background-color: var(--surface-alt);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.thumb-plate {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.card-title {
  font-size: 1.35rem;
  line-height: 1.25;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-colophon {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-light);
  border-top: 1px solid var(--border-color);
  padding: 0.75rem 0;
  text-transform: uppercase;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.view-link {
  color: var(--text-main);
  text-decoration: none;
}

.view-link:hover {
  text-decoration: underline;
}

/* Ethos Section */
.ethos-section {
  padding: 5rem 0;
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
}

.ethos-container {
  display: grid;
  grid-template-columns: 1fr 2.5fr;
  gap: 3rem;
}

.ethos-col-meta .label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.ethos-col-meta p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-light);
}

.ethos-quote {
  font-size: 1.5rem;
  line-height: 1.4;
  font-style: italic;
  margin-bottom: 1.5rem;
  border-left: 2px solid var(--border-dark);
  padding-left: 1.5rem;
}

.ethos-body {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Contact & Directory Section */
.contact-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--surface-color);
}

.contact-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.25rem;
  margin-bottom: 3rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.35rem;
}

.contact-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 700;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr 1fr;
  gap: 3.5rem;
}

.contact-col {
  display: flex;
  flex-direction: column;
}

.col-heading {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-dark);
}

.col-text {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.col-meta {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Acquisitions & Rights Directory List */
.inquiry-list {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin: 0;
  padding: 0;
}

.inquiry-list dt {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  /* Pull the label close to its link */
  margin-top: 1.25rem;
  margin-bottom: 0.15rem;
  line-height: 1.2;
}

/* Remove top margin on the first term */
.inquiry-list dt:first-child {
  margin-top: 0;
}

.inquiry-list dd {
  /* Reset default browser indentation */
  margin-left: 0;
  margin-inline-start: 0;
  margin-bottom: 0;
  line-height: 1.4;
}

.inquiry-list dd a {
  color: var(--text-main);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  word-break: break-word; /* Prevents overflow on narrow screens */
}

.inquiry-list dd a:hover {
  color: var(--accent);
}

/* Dispatch / Prospectus Form */
.dispatch-form {
  margin-top: 1rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.dispatch-input-group {
  display: flex;
  border: 1px solid var(--border-dark);
}

.dispatch-input {
  flex: 1;
  background-color: var(--bg-color);
  border: none;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-main);
  outline: none;
}

.dispatch-input::placeholder {
  color: var(--text-light);
  font-style: italic;
}

.dispatch-btn {
  background-color: var(--text-main);
  color: var(--bg-color);
  border: none;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.dispatch-btn:hover {
  background-color: var(--accent);
}

.col-colophon-box {
  margin-top: auto;
  padding: 1rem;
  background-color: var(--surface-alt);
  border-left: 2px solid var(--border-dark);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* Form Status Feedback & Interaction States */
.dispatch-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.4;
  margin-top: 0.65rem;
  min-height: 1.2rem;
}

.dispatch-status.status-success {
  color: var(--text-main);
  border-left: 2px solid var(--accent);
  padding-left: 0.5rem;
}

.dispatch-status.status-error {
  color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: 0.5rem;
}

.dispatch-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Outbound Author / Founder Links */
.author-link,
.external-colophon-link {
  color: var(--text-main);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

.author-link:hover,
.external-colophon-link:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* ==========================================================================
   ACQUISITION DIALOG / MODAL (STRICT RESET & VIEWPORT CENTERING)
   ========================================================================== */

dialog.acquire-modal {
  /* 1. Force Browser User-Agent Override */
  position: fixed;
  inset: 0;
  margin: auto;
  
  /* 2. Structural Dimensions & Containment */
  width: calc(100% - 2.5rem);
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  
  /* 3. Surface & Architectural Framing */
  background-color: var(--bg-color, #fcfbf9);
  color: var(--text-main, #191816);
  border: 1px solid var(--border-dark, #222222);
  border-radius: 0; /* Sharp fine-press edges */
  padding: 0;
  
  /* 4. Elevation */
  box-shadow: 
    0 24px 48px -12px rgba(0, 0, 0, 0.35),
    0 4px 12px rgba(0, 0, 0, 0.08);
  
  /* 5. Smooth Entrance */
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.2s cubic-bezier(0.16, 1, 0.3, 1),
              overlay 0.2s allow-discrete,
              display 0.2s allow-discrete;
}

/* Modal Open Animation State */
dialog.acquire-modal[open] {
  opacity: 1;
  transform: translateY(0);
}

/* Backdrop */
dialog.acquire-modal::backdrop {
  background: rgba(22, 21, 19, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* Internal Architectural Grid & Padding */
.modal-card {
  padding: 3rem 2.75rem 2.5rem;
}

/* Header */
.modal-header {
  position: relative;
  border-bottom: 1px solid var(--border-color, #dfdbd2);
  padding-bottom: 1.25rem;
  margin-bottom: 1.75rem;
}

.modal-label {
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent, #8b322c);
  display: block;
  margin-bottom: 0.35rem;
}

.modal-title {
  font-family: var(--font-display, serif);
  font-size: 1.35rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  line-height: 1.2;
}

/* Close Button */
.modal-close {
  position: absolute;
  top: -0.25rem;
  right: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid transparent;
  font-family: var(--font-mono, monospace);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted, #646059);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.modal-close:hover {
  color: var(--text-main, #191816);
  border-color: var(--border-color, #dfdbd2);
}

/* Narrative Body */
.modal-desc {
  font-family: var(--font-serif, serif);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text-muted, #646059);
  margin-bottom: 2rem;
}

.modal-desc em {
  color: var(--text-main, #191816);
  font-style: italic;
}

/* Acquisition Channels */
.vendor-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
}

.vendor-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.35rem;
  border: 1px solid var(--border-color, #dfdbd2);
  background-color: var(--surface-color, #f4f2ee);
  text-decoration: none;
  color: var(--text-main, #191816);
  transition: border-color 0.15s ease, background-color 0.15s ease, transform 0.15s ease;
}

.vendor-link:hover {
  border-color: var(--border-dark, #222222);
  background-color: var(--surface-alt, #ece8e1);
  transform: translateX(3px);
}

.vendor-info {
  display: flex;
  flex-direction: column;
}

.vendor-name {
  font-family: var(--font-display, serif);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.vendor-meta {
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  color: var(--text-muted, #646059);
  margin-top: 0.2rem;
  letter-spacing: 0.02em;
}

.vendor-arrow {
  font-family: var(--font-mono, monospace);
  font-size: 1.2rem;
  color: var(--text-light, #8e897f);
  transition: transform 0.15s ease, color 0.15s ease;
}

.vendor-link:hover .vendor-arrow {
  transform: translateX(4px);
  color: var(--text-main, #191816);
}

/* Colophon Footnote */
.modal-colophon-note {
  border-top: 1px solid var(--border-color, #dfdbd2);
  padding-top: 1.25rem;
  font-family: var(--font-mono, monospace);
  font-size: 0.7rem;
  line-height: 1.6;
  color: var(--text-light, #8e897f);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.modal-colophon-note a {
  color: var(--text-main, #191816);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Dossier Section */
.dossier-section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-color);
}

.dossier-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 5rem;
  align-items: start;
}

.dossier-sidebar {
  border-top: 2px solid var(--border-dark);
  padding-top: 1.25rem;
}

.dossier-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.dossier-heading {
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.3;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.dossier-spec-list {
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.8;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.dossier-spec-list strong {
  color: var(--text-main);
  text-transform: uppercase;
}

.dossier-body p {
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
  line-height: 1.7;
}

.dossier-body p.lead-text {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-main);
}

.dossier-inset {
  margin-top: 2.5rem;
  padding: 2rem;
  background-color: var(--surface-color);
  border-left: 2px solid var(--border-dark);
}

.dossier-inset h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.dossier-inset p {
  font-size: 1.05rem;
  margin-bottom: 0;
  color: var(--text-muted);
}

/* Responsive adjustment */
@media (max-width: 900px) {
  .dossier-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

/* Footer */
.site-footer {
  padding: 4rem 0 3rem;
  background-color: var(--bg-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1.5fr 1fr;
  gap: 3rem;
}

.footer-title {
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 0.75rem;
  letter-spacing: 0.08em;
}

.footer-block a {
  color: var(--text-main);
  text-decoration: none;
}

.footer-block a:hover {
  text-decoration: underline;
}

.footer-block.rights {
  text-align: right;
  color: var(--text-light);
}

/* Responsive adjustments */
@media (max-width: 900px) {
  .hero-grid,
  .catalog-grid,
  .ethos-container,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer-block.rights {
    text-align: left;
  }
}