/* ==========================================================================
   KProcure Flow Landing Page - Standalone CSS
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300..700&family=Outfit:wght@500..800&family=Plus+Jakarta+Sans:wght@400..800&family=JetBrains+Mono:wght@400..700&display=swap');

/* Anchor navigation: keep the sticky header clear of jump targets */
html {
  scroll-padding-top: calc(var(--header-height) + 24px);
}

:root {
  --diffs-bg: var(--color-bg-canvas, #0b0b0b);
  --diffs-card-bg: var(--color-bg-surface, #171717);
  --diffs-border: var(--color-border-subtle, #292929);
  --diffs-text-primary: var(--color-text-primary, #fafafa);
  --diffs-text-muted: var(--color-text-secondary, #a1a1aa);
  --diffs-accent-blue: #38bdf8;
  --diffs-font-heading: var(--font-family-heading, 'Outfit', sans-serif);
  --diffs-font-body: var(--font-family-body, 'Plus Jakarta Sans', -apple-system, sans-serif);
  --diffs-font-mono: var(--font-family-mono, 'JetBrains Mono', ui-monospace, monospace);

  /* Landing page neutral editorial tokens */
  --landing-bg: var(--color-bg-canvas, #0b0b0b);
  --landing-surface: var(--color-bg-surface, #171717);
  --landing-surface-raised: var(--color-bg-surface-raised, #202020);
  --landing-border: var(--color-border-subtle, #292929);
  --landing-border-strong: var(--color-border-strong, #3a3a3a);
  --landing-text: var(--color-text-primary, #fafafa);
  --landing-text-muted: var(--color-text-secondary, #a1a1aa);
  --landing-text-dim: var(--color-text-muted, #737373);
  --landing-brand: #38bdf8;
  --landing-document: #f5f5f5;
  --landing-document-text: #111111;
}

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

body {
  font-family: var(--font-family-body, var(--diffs-font-body));
  background-color: var(--color-bg-canvas);
  color: var(--color-text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-family-heading, var(--diffs-font-heading));
  letter-spacing: -0.02em;
}

/* ==========================================================================
   Diffs.com Landing Page Design System
   Neutral editorial foundation
   ========================================================================== */

/* --- Editorial layout primitives --- */

.landing-page-width {
  max-width: var(--page-max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.landing-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 3rem;
  align-items: start;
}

.landing-workflow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.landing-workflow-grid .diffs-op-block:nth-child(even) .diffs-showcase-card {
  margin-inline-start: auto;
  max-width: 56rem;
}

.landing-document-frame {
  background: var(--landing-document);
  color: var(--landing-document-text);
  border: 1px solid var(--landing-border-strong);
  border-radius: 4px;
  padding: 1.5rem;
}

.landing-workflow-connector {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 0;
  color: var(--landing-text-dim);
  font-family: var(--diffs-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.landing-workflow-connector::before,
.landing-workflow-connector::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--landing-border);
}

.landing-closing-cta {
  border-top: 1px solid var(--landing-border);
  padding: 4rem 1.5rem 5rem;
  text-align: left;
}

.landing-closing-cta .landing-page-width {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
  max-width: 40rem;
}

/* --- Base landing shell --- */

#landing-view,
.diffs-landing-container {
  background-color: var(--landing-bg);
  color: var(--landing-text);
  min-height: 100vh;
  width: 100%;
  font-family: var(--diffs-font-body);
}

/* --- Compact header --- */

.diffs-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--landing-bg);
  border-bottom: 1px solid var(--landing-border);
  padding: 0.75rem 0;
}

.diffs-header-inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding-inline: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.landing-brand,
.diffs-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--diffs-font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--landing-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.landing-brand span,
.diffs-badge {
  font-family: var(--diffs-font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--landing-text-dim);
  background: transparent;
  border: 1px solid var(--landing-border);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  letter-spacing: 0.04em;
}

.diffs-header nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.diffs-header nav a,
.diffs-nav-link {
  font-family: var(--diffs-font-mono);
  font-size: 0.8rem;
  color: var(--landing-text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.diffs-header nav a:hover,
.diffs-header nav a:focus-visible,
.diffs-nav-link:hover,
.diffs-nav-link:focus-visible {
  color: var(--landing-brand);
  outline: none;
}

.landing-utilities,
.diffs-header-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.landing-utilities a {
  font-family: var(--diffs-font-mono);
  font-size: 0.8rem;
  color: var(--landing-text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.15s ease;
}

.landing-utilities a:hover,
.landing-utilities a:focus-visible {
  color: var(--landing-brand);
  outline: none;
}

.landing-utilities button,
.diffs-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  justify-content: center;
  background: var(--color-bg-surface);
  color: #e0f2fe;
  font-family: var(--diffs-font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--color-border-strong);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.diffs-btn-primary span.accent {
  color: #38bdf8;
}

.landing-utilities button:hover,
.diffs-btn-primary:hover {
  background: #38bdf8;
  color: var(--color-bg-canvas);
  border-color: #38bdf8;
}
.diffs-btn-primary:hover span.accent {
  color: var(--color-bg-canvas);
}

.landing-utilities button:focus-visible,
.diffs-btn-primary:focus-visible {
  outline: 2px solid var(--landing-brand);
  outline-offset: 2px;
}

.landing-link-secondary,
.diffs-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: transparent;
  color: var(--landing-text-muted);
  font-family: var(--diffs-font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.55rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: color 0.15s ease;
}

.landing-link-secondary:hover,
.landing-link-secondary:focus-visible,
.diffs-btn-secondary:hover,
.diffs-btn-secondary:focus-visible {
  color: var(--landing-brand);
  outline: none;
}

/* --- Hero (asymmetric editorial grid) --- */

.diffs-hero-section {
  padding: 2.75rem 0 3rem;
  border-bottom: 1px solid var(--landing-border);
  background: var(--landing-bg);
}

.diffs-hero-inner {
  max-width: var(--hero-max-width);
  margin: 0 auto;
  padding-inline: 1.5rem;
  text-align: left;
}

.diffs-hero-inner.landing-hero-grid,
.landing-hero-grid.diffs-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
  gap: 62px;
  align-items: center;
}

.landing-brand-tag {
  font-weight: 400;
  color: var(--landing-text-muted);
  font-size: 12px;
  border: none;
  background: transparent;
  padding: 0;
}

.landing-header-btn,
.landing-utilities a.landing-header-btn {
  border: 1px solid var(--color-border-strong);
  padding: 8px 11px;
  font: 500 12px var(--diffs-font-mono), sans-serif;
  color: #e0f2fe !important;
  background: var(--color-bg-surface);
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  justify-content: center;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.landing-header-btn span.accent,
.landing-utilities a.landing-header-btn span.accent {
  color: #38bdf8 !important;
}
.landing-header-btn:hover,
.landing-utilities a.landing-header-btn:hover {
  border-color: #38bdf8;
  background: #38bdf8;
  color: var(--color-bg-canvas) !important;
}
.landing-header-btn:hover span.accent,
.landing-utilities a.landing-header-btn:hover span.accent {
  color: var(--color-bg-canvas) !important;
}

/* --- Hero Section & KProcure Graph Emblem --- */
.diffs-hero-emblem {
  display: flex;
  align-items: center;
  margin-bottom: 1.25rem;
}

.kprocure-graph-pipeline {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 8px;
  padding: 5px 8px;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.graph-node {
  display: inline-flex;
  width: 26px;
  height: 26px;
  background: var(--landing-bg);
  color: var(--landing-text-muted);
  border: 1px solid var(--landing-border-strong);
  border-radius: 5px;
  align-items: center;
  justify-content: center;
  font-family: var(--diffs-font-mono), monospace;
  font-weight: 700;
  font-size: 0.75rem;
  transition: background-color var(--dur-fast) var(--ease-out-expo), color var(--dur-fast) var(--ease-out-expo), border-color var(--dur-fast) var(--ease-out-expo);
  flex-shrink: 0;
}

.graph-node-active {
  background: var(--landing-surface-raised);
  color: var(--landing-brand, #38bdf8);
  border-color: var(--landing-brand, #38bdf8);
  outline: 1px solid var(--landing-brand, #38bdf8);
}

.graph-line {
  width: 10px;
  height: 2px;
  background: var(--landing-border);
  flex-shrink: 0;
}

.graph-line.active-line {
  background: var(--landing-brand, #38bdf8);
}

.diffs-hero-title {
  font-family: var(--diffs-font-heading), Arial, sans-serif;
  font-size: clamp(38px, 5vw, 64px);
  letter-spacing: -0.055em;
  line-height: 1.05;
  font-weight: 600;
  max-width: 655px;
  color: var(--landing-text);
  margin-bottom: 0;
}

.diffs-hero-subtitle p {
  color: var(--landing-text-muted);
  font-size: 20px;
  line-height: 1.4;
  font-family: var(--diffs-font-body), Arial, sans-serif;
  max-width: 570px;
  margin-top: 22px;
  margin-bottom: 0;
}

.diffs-hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  font: 500 14px var(--diffs-font-body), Arial, sans-serif;
}

.diffs-btn-hero-primary {
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  padding: 12px 15px;
  color: #e0f2fe !important;
  background: var(--color-bg-surface);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  justify-content: center;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.diffs-btn-hero-primary span.accent {
  color: #38bdf8 !important;
}
.diffs-btn-hero-primary:hover {
  border-color: #38bdf8;
  background: #38bdf8;
  color: var(--color-bg-canvas) !important;
}
.diffs-btn-hero-primary:hover span.accent {
  color: var(--color-bg-canvas) !important;
}

.diffs-btn-hero-secondary {
  background: var(--color-bg-surface-raised);
  border-radius: 8px;
  padding: 12px 15px;
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  transition: background 0.15s ease;
}
.diffs-btn-hero-secondary:hover {
  background: var(--color-border-strong);
}

.landing-hero-tagline {
  color: var(--color-text-muted);
  font-size: 14px;
  font-family: var(--diffs-font-body), Arial, sans-serif;
  margin-top: 20px;
}

/* --- Layered Card Stack --- */
.landing-hero-card-stack {
  position: relative;
  width: 100%;
  padding-top: 0.5rem;
  padding-bottom: 2rem;
}

/* Back Layer Card (Monospace PR Draft) */
.hero-card-back {
  position: relative;
  z-index: 1;
  width: 88%;
  margin-left: 0;
  margin-right: auto;
  opacity: 0.82;
  border: 1px solid var(--landing-border);
  transition: transform var(--dur-base) var(--ease-out-expo), opacity var(--dur-base) ease, border-color var(--dur-base) ease;
  will-change: transform;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  backface-visibility: hidden;
}

/* Front Layer Card (Overlapping & Elevated) */
.hero-card-front {
  position: relative;
  z-index: 10;
  width: 92%;
  margin-top: -6.5rem;
  margin-left: auto;
  margin-right: 0;
  background: var(--landing-surface);
  border: 1px solid var(--landing-border-strong);
  border-radius: 10px;
  transition: transform var(--dur-base) var(--ease-out-expo), border-color var(--dur-base) ease;
  will-change: transform;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  backface-visibility: hidden;
}

.landing-hero-card-stack:hover .hero-card-back {
  transform: translate3d(-6px, -6px, 0);
  opacity: 0.95;
  border-color: var(--landing-border-strong);
}

.landing-hero-card-stack:hover .hero-card-front {
  transform: translate3d(4px, -10px, 0);
  border-color: rgba(56, 189, 248, 0.4);
}

/* Mobile responsive header and unstacking fallback */
@media (max-width: 768px) {
  .diffs-header-inner {
    flex-wrap: wrap;
    gap: 0.65rem 1rem;
    padding-inline: 1rem;
  }

  .diffs-header nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-top: 0.45rem;
    border-top: 1px solid var(--landing-border);
    gap: 0.85rem;
    -webkit-overflow-scrolling: touch;
    margin-top: 0.2rem;
  }

  .diffs-header nav a {
    white-space: nowrap;
  }

  .landing-utilities {
    margin-left: auto;
    gap: 0.65rem;
  }

  .landing-hero-card-stack {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-top: 0;
    padding-bottom: 0;
  }

  .hero-card-back,
  .hero-card-front {
    width: 100% !important;
    margin: 0 !important;
    transform: none !important;
    opacity: 1 !important;
    filter: none !important;
  }
}

@media (max-width: 480px) {
  .landing-brand-tag {
    display: none;
  }

  .landing-utilities a span {
    display: none;
  }

  .landing-header-btn {
    padding: 5px 8px;
    font-size: 0.72rem;
  }
}

/* --- Exact Monospace Hero Preview Frame --- */
.landing-hero-preview-frame {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: 10px;
  overflow: hidden;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  margin-top: 0;
}

.hero-stacked-card {
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 10px;
  padding: 1.25rem;
  font-family: var(--diffs-font-body), Arial, sans-serif;
  color: var(--landing-text);
}

.hero-stacked-card .landing-table-wrapper {
  margin-bottom: 0.5rem;
}

/* --- Dedicated Platform Overview Section --- */
.diffs-overview-section {
  padding: var(--section-pad-block) 0;
  background: var(--landing-surface);
  border-top: 1px solid var(--landing-border);
  border-bottom: 1px solid var(--landing-border);
}

.landing-overview-card {
  max-width: 54rem;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

.landing-overview-label {
  font-family: var(--diffs-font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--landing-brand, #38bdf8);
  text-transform: uppercase;
}

.landing-overview-text {
  font-family: var(--diffs-font-body), Arial, sans-serif;
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--landing-text);
  margin: 0;
}

.hero-preview-bar {
  height: 37px;
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 13px;
  color: var(--color-text-secondary);
}

.hero-preview-status {
  color: var(--color-text-muted);
}

.hero-preview-content {
  padding: 15px 14px 18px;
  color: #d4d4d4;
  line-height: 1.75;
}

.hero-doc-title {
  color: var(--color-text-primary);
  font-weight: 700;
}

.hero-doc-subtitle {
  color: var(--color-text-muted);
}

.hero-doc-divider {
  height: 1px;
  background: var(--color-border-subtle);
  margin: 14px 0;
}

.hero-doc-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.hero-doc-total {
  display: flex;
  justify-content: space-between;
  color: var(--color-text-primary);
}

.landing-doc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #d4d4d8;
  padding-bottom: 0.65rem;
  margin-bottom: 0.85rem;
}

.landing-doc-type {
  font-family: var(--diffs-font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: #18181b;
}

.landing-doc-ref {
  font-family: var(--diffs-font-mono);
  font-size: 0.75rem;
  color: #52525b;
}

.landing-doc-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 1rem;
  font-family: var(--diffs-font-mono);
  font-size: 0.75rem;
  color: #27272a;
  margin-bottom: 0.85rem;
}

.landing-meta-label {
  color: #71717a;
}

.landing-doc-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 0.85rem;
  font-family: var(--diffs-font-mono);
  font-size: 0.75rem;
}

.landing-doc-table th {
  text-align: left;
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid #d4d4d8;
  color: #52525b;
  font-weight: 600;
}

.landing-doc-table td {
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid #e4e4e7;
  color: #18181b;
}

.landing-doc-table .text-right {
  text-align: right;
}

.landing-doc-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 0.65rem;
  background: #e4e4e7;
  border-radius: 3px;
  font-family: var(--diffs-font-mono);
  font-size: 0.78rem;
  color: #18181b;
  margin-bottom: 0.75rem;
}

.landing-doc-status {
  display: flex;
  justify-content: flex-end;
}

.landing-status-pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  background: #fef08a;
  color: #854d0e;
  border: 1px solid #fde047;
  border-radius: 3px;
  font-family: var(--diffs-font-mono);
  font-size: 0.7rem;
  font-weight: 600;
}

/* --- Workflow sections --- */

.diffs-operations-container {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: var(--section-pad-block) 1.5rem;
}

.diffs-op-block {
  margin-bottom: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--landing-border);
}

.diffs-op-block:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.diffs-op-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.diffs-step-badge {
  font-family: var(--diffs-font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--landing-text-dim);
  background: transparent;
  border: none;
  padding: 0;
  border-radius: 0;
}

.diffs-op-title {
  font-family: var(--diffs-font-heading);
  font-size: 1.5rem;
  font-weight: 590;
  color: var(--landing-text);
  letter-spacing: -0.02em;
}

.diffs-op-narrative {
  font-family: var(--diffs-font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--landing-text-muted);
  max-width: 42rem;
  margin-bottom: 2rem;
}

/* --- Showcase / document preview --- */

.diffs-showcase-card {
  background-color: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 6px;
  overflow: hidden;
}

.diffs-tabs-header {
  display: flex;
  background: var(--landing-surface-raised);
  border-bottom: 1px solid var(--landing-border);
  padding: 0.35rem 0.5rem 0;
  gap: 0.25rem;
}

.diffs-tab-btn {
  font-family: var(--diffs-font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--landing-text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 4px 4px 0 0;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.diffs-tab-btn:hover {
  color: var(--landing-text);
  background: var(--landing-surface);
}

.diffs-tab-btn:focus-visible {
  outline: 2px solid var(--landing-brand);
  outline-offset: -2px;
}

.diffs-tab-active {
  color: var(--landing-brand) !important;
  background: var(--landing-surface) !important;
  border-color: var(--landing-border) var(--landing-border) transparent var(--landing-border) !important;
  font-weight: 600;
}

.diffs-tab-content {
  padding: 1.5rem;
}

.diffs-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  align-items: flex-end;
}

.diffs-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.diffs-input-group label {
  font-family: var(--diffs-font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--landing-text-dim);
}

.diffs-input {
  background: var(--landing-bg);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
  padding: 0.6rem 0.85rem;
  color: var(--landing-text);
  font-family: var(--diffs-font-mono);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.15s ease;
}

.diffs-input:focus {
  border-color: var(--landing-brand);
  outline: 2px solid var(--landing-brand);
  outline-offset: 0;
}

.diffs-total-card {
  grid-column: 1 / -1;
  background: var(--landing-surface-raised);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.25rem;
}

.diffs-total-label {
  font-family: var(--diffs-font-mono);
  font-size: 0.8rem;
  color: var(--landing-text-muted);
}

.diffs-total-value {
  font-family: var(--diffs-font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--landing-brand);
}

/* --- Document mockups (light paper frame) --- */

.diffs-pdf-mockup,
.landing-document-frame {
  background: var(--landing-document);
  color: var(--landing-document-text);
  border: 1px solid var(--landing-border-strong);
  border-radius: 4px;
  padding: 1.5rem;
  font-family: var(--diffs-font-mono);
  font-size: 0.85rem;
}

.diffs-pdf-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--landing-border);
  padding-bottom: 0.85rem;
  margin-bottom: 1rem;
}

.diffs-pdf-title {
  font-weight: 700;
  color: var(--landing-document-text);
  letter-spacing: 0.04em;
  font-size: 0.8rem;
}

.diffs-pdf-ref {
  color: var(--landing-brand);
  font-size: 0.75rem;
}

.diffs-pdf-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  color: var(--landing-text-dim);
}

.diffs-pdf-body p {
  line-height: 1.5;
  margin: 0;
}

.diffs-pdf-body strong {
  color: var(--landing-document-text);
}

.diffs-pdf-table-preview {
  background: var(--landing-document);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
  padding: 0.85rem 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  margin: 0.25rem 0;
  color: var(--landing-document-text);
}

.diffs-pdf-status {
  margin-top: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--landing-document-text);
}

/* --- Status labels --- */

.diffs-badge-pending,
.diffs-badge-approved,
.diffs-badge-delivered,
.diffs-badge-verified {
  font-family: var(--diffs-font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--landing-document-text);
  background: transparent;
  border: 1px solid var(--landing-border-strong);
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
}

.diffs-po-schema-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.diffs-po-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
  background: var(--landing-surface-raised);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
  padding: 1rem 1.15rem;
  font-family: var(--diffs-font-mono);
  font-size: 0.82rem;
  color: var(--landing-text-muted);
}

.diffs-po-meta-grid strong {
  color: var(--landing-text);
}

.diffs-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--diffs-font-mono);
  font-size: 0.82rem;
  text-align: left;
}

.diffs-table th {
  background: var(--landing-surface-raised);
  color: var(--landing-text-dim);
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--landing-border);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.diffs-table td {
  padding: 0.65rem 0.85rem;
  color: var(--landing-text);
  border-bottom: 1px solid var(--landing-border);
}

.diffs-table tbody tr:hover {
  background: var(--landing-surface-raised);
}

.diffs-po-grand-total {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  background: var(--landing-surface-raised);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
  padding: 0.75rem 1rem;
  font-family: var(--diffs-font-mono);
  font-size: 0.85rem;
  color: var(--landing-text-muted);
}

.diffs-po-grand-total strong {
  color: var(--landing-brand);
  font-size: 1.1rem;
  margin-left: 0.5rem;
}

.diffs-pdf-signatures {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--landing-border);
  font-size: 0.82rem;
}

.diffs-pdf-signatures div {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* --- Mobile breakpoint --- */

@media (max-width: 768px) {
  .diffs-nav {
    display: none;
  }

  .landing-hero-grid,
  .diffs-hero-inner.landing-hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .diffs-hero-title {
    font-size: 2rem;
  }

  .diffs-hero-narrative p {
    font-size: 0.95rem;
  }

  .diffs-hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .diffs-btn-primary,
  .diffs-btn-secondary {
    width: 100%;
  }

  .diffs-form-grid {
    grid-template-columns: 1fr;
  }

  .diffs-total-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
  }

  .diffs-po-meta-grid {
    grid-template-columns: 1fr;
  }

  .diffs-pdf-signatures {
    flex-direction: column;
    align-items: flex-start;
  }

  .landing-workflow-grid .diffs-op-block:nth-child(even) .diffs-showcase-card {
    margin-inline-start: 0;
    max-width: none;
  }
}

/* --- Workflow Document Strip --- */

.landing-doc-strip-wrapper {
  margin-bottom: 3.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--landing-surface);
  border: 1px solid var(--landing-border);
  border-radius: 6px;
}

.landing-doc-strip-label {
  font-family: var(--diffs-font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--landing-text-dim);
  margin-bottom: 0.85rem;
}

.landing-doc-strip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
}

.landing-strip-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  background: var(--landing-bg);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
  font-family: var(--diffs-font-mono);
  font-size: 0.78rem;
  white-space: nowrap;
}

.landing-strip-active {
  border-color: var(--landing-brand);
  background: var(--landing-surface-raised);
}

.landing-strip-code {
  font-weight: 700;
  color: var(--landing-text-dim);
}

.landing-strip-active .landing-strip-code {
  color: var(--landing-brand);
}

.landing-strip-title {
  color: var(--landing-text-muted);
}

.landing-strip-active .landing-strip-title {
  color: var(--landing-text);
  font-weight: 600;
}

.landing-strip-connector {
  flex: 0 0 1.5rem;
  height: 1px;
  background: var(--landing-border);
}

/* --- Interactive inputs in workflow document frame --- */

.workflow-doc-frame {
  margin-top: 1.5rem;
}

.landing-interactive-inputs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding: 0.85rem 1rem;
  background: var(--landing-bg);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
}

.landing-row-active {
  background: rgba(32, 32, 32, 0.08);
}

.landing-doc-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.5rem;
}

.landing-po-margin-note {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0.85rem;
  background: var(--landing-bg);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
  font-family: var(--diffs-font-mono);
  font-size: 0.78rem;
  color: var(--landing-text-muted);
  margin-bottom: 0.85rem;
}

.landing-doc-relationship {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--landing-bg);
  border: 1px solid var(--landing-border);
  border-radius: 4px;
  font-family: var(--diffs-font-mono);
  font-size: 0.78rem;
}

.landing-relationship-label {
  color: var(--landing-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.7rem;
}

.landing-relationship-chain {
  color: var(--landing-text);
  font-weight: 500;
}

/* --- Closing CTA --- */

.landing-closing-cta {
  border-top: 1px solid var(--landing-border);
  padding: 4.5rem 1.5rem;
  background: var(--landing-bg);
}

.landing-closing-inner {
  max-width: 42rem;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.landing-closing-title {
  font-family: var(--diffs-font-heading);
  font-size: 1.75rem;
  font-weight: 590;
  color: var(--landing-text);
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.landing-closing-text {
  font-family: var(--diffs-font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--landing-text-muted);
}

.landing-closing-actions {
  margin-top: 0.5rem;
}

/* --- Landing Document Table Responsive Overflow --- */
.landing-table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 0.85rem;
}

.landing-table-wrapper .landing-doc-table {
  margin-bottom: 0;
  min-width: 480px;
}

/* --- Keyboard Accessibility & Focus-Visible Styles --- */
#landing-view a:focus-visible,
#landing-view button:focus-visible,
#landing-view input:focus-visible,
#landing-view select:focus-visible,
.landing-brand:focus-visible,
.diffs-header nav a:focus-visible,
.landing-utilities a:focus-visible,
.landing-utilities button:focus-visible,
.diffs-hero-actions button:focus-visible,
.diffs-hero-actions a:focus-visible,
.landing-closing-actions button:focus-visible {
  outline: 2px solid var(--landing-brand, #38bdf8);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (max-width: 640px) {
  .landing-doc-meta {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .landing-table-wrapper .landing-doc-table {
    min-width: 420px;
  }
}

.showcase-section {
  padding: var(--section-pad-block) 6%;
  background: var(--color-bg-canvas);
  border-bottom: 1px solid var(--color-border-subtle);
}

/* Showcase gets the wide hero stage (Linear homepage rhythm) */
.showcase-section .landing-page-width {
  max-width: var(--hero-max-width);
}

.showcase-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}

.showcase-header-left {
  flex: 1;
}

.showcase-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-family-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brand-primary);
  margin-bottom: 10px;
}

.showcase-eyebrow-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-brand-primary);
}

.showcase-title {
  font-family: var(--font-family-heading);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.2;
  color: var(--color-text-primary);
}

.showcase-header-right {
  font-family: var(--font-family-mono);
  font-size: var(--text-micro);
  color: var(--color-text-muted);
  text-align: right;
  line-height: 1.8;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.desktop-mount {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: 11px;
  overflow: hidden;
  box-shadow: 0 24px 48px -10px rgba(0,0,0,0.7);
}

.mount-bar {
  height: 38px;
  background: var(--color-bg-canvas);
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  font-family: var(--font-family-mono);
  font-size: 11.5px;
  color: var(--color-text-muted);
}

.mount-bar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.traffic-lights {
  display: flex;
  gap: 6px;
}

.tl {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.tl-r {
  background: #ef4444;
}

.tl-a {
  background: #f59e0b;
}

.tl-g {
  background: #22c55e;
}

.mount-path {
  color: var(--color-text-muted);
}

.mount-badge {
  padding: 2px 9px;
  border-radius: 4px;
  background: rgba(56,189,248,0.12);
  border: 1px solid rgba(56,189,248,0.25);
  font-size: 10px;
  color: var(--color-brand-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.mount-body {
  display: grid;
  grid-template-columns: 200px 1fr;
  min-height: 340px;
}

.mount-sidebar {
  background: #111111;
  border-right: 1px solid var(--color-border-subtle);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mount-sidebar-label {
  font-family: var(--font-family-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 8px 6px;
}

.mount-sidebar-label + .mount-sidebar-label,
.mount-sidebar-label:not(:first-child) {
  margin-top: 18px;
}

.mount-sidebar-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out-expo), background-color var(--dur-fast) var(--ease-out-expo), border-color var(--dur-fast) var(--ease-out-expo);
}

.mount-sidebar-item:hover {
  color: var(--color-text-primary);
  background: rgba(255,255,255,0.04);
}

.mount-sidebar-item.active {
  color: var(--color-text-primary);
  background: var(--color-bg-surface-raised);
  border-color: var(--color-border-subtle);
  font-weight: 600;
}

.mount-sidebar-item.active svg {
  stroke: var(--color-brand-primary);
}

.mount-sidebar-item svg {
  width: 15px;
  height: 15px;
  stroke: var(--color-text-muted);
  flex-shrink: 0;
  stroke-width: 1.8;
}

.mount-main {
  background: var(--color-bg-surface);
  display: flex;
  flex-direction: column;
}

.mount-main-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.mount-main-title {
  font-family: var(--font-family-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.mount-main-sub {
  font-size: 11.5px;
  color: var(--color-text-muted);
  margin-top: 2px;
  font-family: var(--font-family-mono);
}

.mount-create-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #111111;
  background: var(--btn-bg-primary, #FAFAFA);
  border: none;
  border-radius: 6px;
  padding: 7px 13px;
  cursor: pointer;
  transition: opacity 0.15s;
}

.mount-create-btn:hover {
  opacity: 0.88;
}

.mount-create-btn:active {
  transform: translateY(1px) scale(0.98);
}

.mount-table {
  width: 100%;
  border-collapse: collapse;
}

.mount-table thead tr {
  border-bottom: 1px solid var(--color-border-subtle);
  background: rgba(11,11,11,0.6);
}

.mount-table th {
  font-family: var(--font-family-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 9px 16px;
  text-align: left;
}

.mount-table td {
  font-family: var(--font-family-mono);
  font-size: 12px;
  color: var(--color-text-secondary);
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border-subtle);
  vertical-align: middle;
}

.mount-table tr:last-child td {
  border-bottom: none;
}

.mount-cell-id {
  color: var(--color-brand-primary);
  font-weight: 600;
}

.mount-cell-vendor {
  font-family: var(--font-family-body);
  font-size: 12.5px;
  color: var(--color-text-primary);
}

.mount-cell-amount {
  color: var(--color-text-primary);
  letter-spacing: 0.01em;
}

td .mount-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 4px;
  font-family: var(--font-family-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: transparent;
  border: none;
}

td .mount-badge::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mount-badge-approved {
  background: rgba(16,185,129,0.12) !important;
  color: #10b981 !important;
}

.mount-badge-approved::before {
  background: #10b981;
}

.mount-badge-pending {
  background: rgba(245,158,11,0.12) !important;
  color: #f59e0b !important;
}

.mount-badge-pending::before {
  background: #f59e0b;
}

.showcase-divider {
  padding: 28px 6%;
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--color-bg-canvas);
}

.showcase-divider-line {
  flex: 1;
  height: 1px;
  background: var(--color-border-subtle);
}

.showcase-divider-label {
  font-family: var(--font-family-mono);
  font-size: 10.5px;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* --- Landing Footer (Archetype Ft2 Inline Single Line) --- */
.landing-footer {
  border-top: 1px solid var(--landing-border, #292929);
  padding: 2.5rem 1.5rem;
  background: var(--landing-bg, #0b0b0b);
}

.landing-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--diffs-font-mono, monospace);
  font-size: 0.8rem;
  color: var(--landing-text-muted, #a1a1aa);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--landing-text-muted, #a1a1aa);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--landing-brand, #38bdf8);
}

.footer-copy {
  color: var(--landing-text-dim, #737373);
  font-size: 0.75rem;
}