/* -------------------------------------------------------------
   19–86 — Architectural Ledger Design System
   Exact implementation of Design.md & CSS Variables.css
   Monumental numerals on white ledger
   Ink (#000000) on Paper (#ffffff)
   ------------------------------------------------------------- */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@200;300;400&family=Manrope:wght@200;300;400&family=JetBrains+Mono:wght@200;300;400&display=swap');

:root {
  /* Colors */
  --color-ink: #000000;
  --color-paper: #ffffff;

  /* Typography — Font Families */
  --font-storenorskejalight: 'store_norske_ja_light', 'Manrope', 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Typography — Scale */
  --text-body: 24px;
  --leading-body: 1.20; /* 28.8px */
  --tracking-body: -0.02em; /* -0.48px at 24px */
  --text-display: clamp(140px, 32vw, 490px);
  --leading-display: 1.00;
  --tracking-display: -0.02em;

  /* Typography — Weights */
  --font-weight-regular: 300;
  --font-weight-hairline: 200;

  /* Spacing */
  --spacing-unit: 6px;
  --spacing-5: 5px;
  --spacing-8: 8px;
  --spacing-12: 12px;
  --spacing-24: 24px;
  --spacing-30: 30px;

  /* Layout */
  --section-gap: 24px;
  --element-gap: 24px;

  /* Named Radii */
  --radius-dots: 9999px;
  --radius-rows: 0px;
  --radius-headers: 0px;
  --radius-brand-mark: 0px;

  /* Surfaces */
  --surface-paper: #ffffff;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0;
}

html {
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-storenorskejalight);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  font-weight: var(--font-weight-regular);
  font-feature-settings: "kern" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-paper);
  color: var(--color-ink);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

/* Hairline rule */
.hairline-rule {
  height: 1px;
  background-color: var(--color-ink);
  width: 100%;
  border: none;
  margin: 0;
  padding: 0;
}

/* Architectural Watermark */
.monumental-watermark {
  position: fixed;
  top: 42%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-storenorskejalight);
  font-size: var(--text-display);
  line-height: var(--leading-display);
  letter-spacing: -0.02em;
  font-weight: var(--font-weight-hairline);
  color: var(--color-ink);
  user-select: none;
  pointer-events: none;
  z-index: 0;
  white-space: nowrap;
  opacity: 1;
  transition: opacity 0.3s ease;
}

/* Chrome / Top Bar */
.studio-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-ink);
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  font-size: 16px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.studio-title-block {
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.studio-brand-code {
  font-size: 20px;
  letter-spacing: -0.02em;
  font-weight: 400;
}

.studio-subtitle {
  font-size: 14px;
  letter-spacing: -0.01em;
  opacity: 0.85;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-nav-btn {
  background: transparent;
  border: none;
  font-family: var(--font-storenorskejalight);
  font-size: 14px;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  cursor: pointer;
  padding: 4px 0;
  position: relative;
  text-transform: uppercase;
}

.header-nav-btn:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.header-nav-btn.active {
  font-weight: 400;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Secondary Filter Bar */
.filter-bar {
  position: relative;
  z-index: 10;
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-ink);
  padding: 8px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.filter-tags {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.filter-tag {
  background: transparent;
  border: 1px solid transparent;
  font-family: var(--font-storenorskejalight);
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  cursor: pointer;
  padding: 2px 8px;
  transition: all 0.15s ease;
}

.filter-tag:hover {
  border-color: var(--color-ink);
}

.filter-tag.active {
  background-color: var(--color-ink);
  color: var(--color-paper);
  border-color: var(--color-ink);
}

.filter-search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-input {
  font-family: var(--font-storenorskejalight);
  font-size: 14px;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  background: transparent;
  border: 1px solid var(--color-ink);
  padding: 4px 10px;
  width: 220px;
  outline: none;
}

.search-input::placeholder {
  color: var(--color-ink);
  opacity: 0.5;
}

.view-mode-toggle {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-ink);
}

.view-btn {
  background: transparent;
  border: none;
  font-family: var(--font-storenorskejalight);
  font-size: 13px;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  padding: 3px 8px;
  cursor: pointer;
}

.view-btn.active {
  background: var(--color-ink);
  color: var(--color-paper);
}

/* Main Ledger Container */
.ledger-container {
  position: relative;
  z-index: 5;
  width: 100%;
  flex: 1 0 auto;
}

/* Table Architecture */
.ledger-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: auto;
}

/* Row Header */
.ledger-header-row {
  border-bottom: 1px solid var(--color-ink);
  user-select: none;
}

.ledger-header-cell {
  font-family: var(--font-storenorskejalight);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  font-weight: var(--font-weight-regular);
  color: var(--color-ink);
  text-align: left;
  padding-top: var(--spacing-5);
  padding-bottom: var(--spacing-8);
  padding-right: var(--spacing-24);
  white-space: nowrap;
}

.ledger-header-cell.col-date {
  width: 110px;
  padding-left: var(--spacing-24);
}

.ledger-header-cell.col-title {
  width: auto;
}

.ledger-header-cell.col-meta {
  width: 140px;
}

.ledger-header-cell.col-dot {
  width: 40px;
  text-align: right;
  padding-right: var(--spacing-30);
  font-size: 20px;
}

/* Project Data Row */
.ledger-row {
  border-bottom: 1px solid var(--color-ink);
  cursor: pointer;
  transition: background-color 0.15s ease;
  position: relative;
}

.ledger-row:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

.ledger-row.active-row {
  background-color: rgba(0, 0, 0, 0.07);
}

.ledger-cell {
  font-family: var(--font-storenorskejalight);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  font-weight: var(--font-weight-regular);
  color: var(--color-ink);
  text-align: left;
  padding-top: var(--spacing-5);
  padding-bottom: var(--spacing-8);
  padding-right: var(--spacing-24);
  white-space: nowrap;
}

.ledger-cell.col-date {
  width: 110px;
  padding-left: var(--spacing-24);
}

.ledger-cell.col-title {
  width: auto;
}

.ledger-cell.col-meta {
  width: 140px;
}

.ledger-cell.col-dot {
  width: 40px;
  text-align: right;
  padding-right: var(--spacing-30);
}

/* Status Indicator Dot */
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--color-ink);
  border-radius: var(--radius-dots);
  vertical-align: middle;
  transform: translateY(-2px);
  transition: transform 0.2s ease;
}

.ledger-row:hover .status-dot {
  transform: scale(1.6) translateY(-1px);
}

/* Floating Hover Preview Card */
.hover-preview-card {
  position: fixed;
  pointer-events: none;
  z-index: 50;
  width: 320px;
  background-color: var(--color-paper);
  border: 1px solid var(--color-ink);
  padding: 12px;
  box-shadow: none;
  display: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.hover-preview-card.visible {
  display: block;
  opacity: 1;
}

.preview-drawing-box {
  width: 100%;
  height: 180px;
  border-bottom: 1px solid var(--color-ink);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-paper);
  overflow: hidden;
}

.preview-drawing-box svg {
  width: 90%;
  height: 90%;
  stroke: var(--color-ink);
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--color-ink);
  padding-bottom: 4px;
  margin-bottom: 8px;
}

.preview-code {
  font-size: 15px;
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.preview-title {
  font-size: 16px;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.preview-specs {
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.preview-specs-row {
  display: flex;
  justify-content: space-between;
  padding: 2px 0;
}

.preview-specs-label {
  opacity: 0.6;
}

.preview-hint {
  margin-top: 8px;
  padding-top: 6px;
  border-top: 1px solid var(--color-ink);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
}

/* Dossier Slide Drawer */
.dossier-drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(255, 255, 255, 0.4);
  z-index: 100;
  display: none;
  backdrop-filter: blur(0px);
}

.dossier-drawer-backdrop.open {
  display: block;
}

.dossier-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 580px;
  max-width: 100vw;
  height: 100vh;
  background-color: var(--color-paper);
  border-left: 1px solid var(--color-ink);
  z-index: 110;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.dossier-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--color-paper);
  flex-shrink: 0;
}

.drawer-ref-badge {
  font-size: 16px;
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.drawer-close-btn {
  background: transparent;
  border: 1px solid var(--color-ink);
  font-family: var(--font-storenorskejalight);
  font-size: 14px;
  color: var(--color-ink);
  padding: 4px 12px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 0.15s ease;
}

.drawer-close-btn:hover {
  background-color: var(--color-ink);
  color: var(--color-paper);
}

.drawer-scroll-body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 24px;
}

.drawer-project-title {
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 300;
  margin-bottom: 24px;
}

.drawer-spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--color-ink);
  border-left: 1px solid var(--color-ink);
  margin-bottom: 24px;
}

.drawer-spec-cell {
  border-right: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
  padding: 10px 12px;
}

.drawer-spec-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
  margin-bottom: 4px;
}

.drawer-spec-val {
  font-size: 17px;
  line-height: 1.25;
}

.drawer-section-title {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-ink);
  padding-bottom: 6px;
  margin-top: 28px;
  margin-bottom: 12px;
}

.drawer-narrative {
  font-size: 18px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}

.drawer-plate-card {
  border: 1px solid var(--color-ink);
  margin-bottom: 24px;
}

.drawer-plate-canvas {
  width: 100%;
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-paper);
  border-bottom: 1px solid var(--color-ink);
  overflow: hidden;
  padding: 16px;
}

.drawer-plate-canvas svg {
  width: 100%;
  height: 100%;
  stroke: var(--color-ink);
}

.drawer-plate-canvas img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%) contrast(120%);
}

.drawer-plate-caption {
  padding: 8px 12px;
  font-size: 12px;
  letter-spacing: -0.01em;
  opacity: 0.8;
  display: flex;
  justify-content: space-between;
}

.drawer-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--color-ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--color-paper);
  flex-shrink: 0;
}

.drawer-footer-btn {
  background: transparent;
  border: 1px solid var(--color-ink);
  font-family: var(--font-storenorskejalight);
  font-size: 13px;
  color: var(--color-ink);
  padding: 6px 14px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: all 0.15s ease;
}

.drawer-footer-btn:hover {
  background-color: var(--color-ink);
  color: var(--color-paper);
}

.drawer-nav-group {
  display: flex;
  gap: 8px;
}

/* Modal / Slide Panels for Manifesto & Colophon */
.slide-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(255, 255, 255, 0.4);
  z-index: 120;
  display: none;
}

.slide-modal-backdrop.open {
  display: block;
}

.slide-modal {
  position: fixed;
  top: 0;
  right: 0;
  width: 680px;
  max-width: 100vw;
  height: 100vh;
  background-color: var(--color-paper);
  border-left: 1px solid var(--color-ink);
  z-index: 130;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.slide-modal.open {
  transform: translateX(0);
}

/* Studio Colophon Section in Modal */
.manifesto-lead {
  font-size: 26px;
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 300;
  margin-bottom: 24px;
}

.manifesto-body {
  font-size: 18px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.colophon-specs-table {
  width: 100%;
  border-top: 1px solid var(--color-ink);
  border-left: 1px solid var(--color-ink);
  margin: 20px 0;
}

.colophon-specs-row {
  display: flex;
}

.colophon-specs-key {
  width: 160px;
  padding: 8px 12px;
  border-right: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
}

.colophon-specs-value {
  flex: 1;
  padding: 8px 12px;
  border-right: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
  font-size: 15px;
  line-height: 1.3;
}

/* Archival Reference Showcase */
.archival-showcase-box {
  border: 1px solid var(--color-ink);
  margin-top: 20px;
  margin-bottom: 24px;
}

.archival-showcase-header {
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-ink);
  font-size: 13px;
  letter-spacing: -0.01em;
  display: flex;
  justify-content: space-between;
}

.archival-screenshot-img {
  width: 100%;
  height: auto;
  display: block;
  filter: contrast(110%);
}

/* Plates View Mode */
.plates-grid-container {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  width: 100%;
  border-top: 1px solid var(--color-ink);
  border-left: 1px solid var(--color-ink);
  position: relative;
  z-index: 5;
}

.plates-grid-container.active {
  display: grid;
}

.plate-grid-item {
  border-right: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
  padding: 20px;
  cursor: pointer;
  background-color: var(--color-paper);
  transition: background-color 0.15s ease;
}

.plate-grid-item:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

.plate-drawing-area {
  width: 100%;
  height: 220px;
  border: 1px solid var(--color-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  padding: 14px;
}

.plate-drawing-area svg {
  width: 100%;
  height: 100%;
  stroke: var(--color-ink);
}

.plate-item-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}

.plate-item-code {
  font-size: 15px;
  font-family: var(--font-mono);
}

.plate-item-date {
  font-size: 14px;
  opacity: 0.6;
}

.plate-item-name {
  font-size: 22px;
  line-height: 1.2;
  margin-bottom: 6px;
}

.plate-item-specs {
  font-size: 14px;
  opacity: 0.7;
}

/* Footer / Colophon Bar */
.studio-footer {
  position: relative;
  z-index: 10;
  background-color: var(--color-paper);
  border-top: 1px solid var(--color-ink);
  margin-top: auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
}

.footer-left {
  display: flex;
  gap: 24px;
  align-items: center;
}

.footer-right {
  display: flex;
  gap: 20px;
  align-items: center;
}

.footer-link {
  color: var(--color-ink);
  text-decoration: none;
}

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

/* Print Stylesheet for Dossier */
@media print {
  .studio-header,
  .filter-bar,
  .studio-footer,
  .monumental-watermark,
  .hover-preview-card,
  .drawer-close-btn,
  .drawer-footer {
    display: none !important;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .dossier-drawer {
    position: static !important;
    width: 100% !important;
    height: auto !important;
    border: none !important;
    transform: none !important;
  }

  .drawer-scroll-body {
    overflow: visible !important;
    padding: 0 !important;
  }
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .ledger-cell.col-meta:nth-child(5), /* Surface */
  .ledger-header-cell.col-meta:nth-child(5) {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --text-body: 18px;
    --leading-body: 1.25;
  }

  .top-bar-inner {
    padding: 8px 16px;
  }

  .filter-bar {
    padding: 8px 16px;
  }

  .ledger-cell.col-date {
    width: 70px;
    padding-left: 16px;
    padding-right: 12px;
  }

  .ledger-header-cell.col-date {
    width: 70px;
    padding-left: 16px;
    padding-right: 12px;
  }

  .ledger-cell.col-meta,
  .ledger-header-cell.col-meta {
    display: none;
  }

  .ledger-cell.col-dot,
  .ledger-header-cell.col-dot {
    padding-right: 16px;
  }

  .studio-footer {
    padding: 12px 16px;
  }

  .dossier-drawer,
  .slide-modal {
    width: 100vw;
  }
}