:root {
  /* ==========================================================================
     1. CLIENT SEED TOKENS
     Only change these two values to re-theme the entire app.
     ========================================================================== */
  --brand-bg: #faf8f5;        /* Canvas paper feel */
  --brand-primary: #7048e8;   /* Brand primary color */

  /* ==========================================================================
     2. DERIVED COLOR SYSTEM (Calculated via color-mix)
     ========================================================================== */
  --color-bg: var(--brand-bg);
  --color-bg-subtle: color-mix(in srgb, var(--brand-primary) 5%, var(--brand-bg));
  --color-bg-tint: color-mix(in srgb, var(--brand-primary) 10%, var(--brand-bg));

  --color-text: #191816;
  --color-text-body: #2c2925;
  --color-text-muted: #787268;

  /* Quiet hairline border derived directly from the canvas tone */
  --color-border: color-mix(in srgb, var(--color-text) 11%, var(--brand-bg));

  /* Active brand accent */
  --color-accent: var(--brand-primary);

  /* Backdrop scrim */
  --color-backdrop: rgba(25, 24, 22, 0.35);

  /* Semantic status colors (quiet, editorial) */
  --color-success: #2b7a4b;
  --color-warning: #9e6417;
  --color-danger: #a32d2d;

  /* ==========================================================================
     3. TYPOGRAPHY TOKENS (§4: Display, Large, Body, Small)
     ========================================================================== */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, monospace;
  
  --font-size-display: 24px;
  --line-height-display: 1.25;

  --font-size-large: 16px;
  --line-height-large: 1.35;

  --font-size-body: 13.5px;
  --line-height-body: 1.55;

  --font-size-small: 11.5px;
  --line-height-small: 1.45;

  /* ==========================================================================
     4. SPACING VOCABULARY (§10: Strict 8-point repeatable scale)
     ========================================================================== */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* Sidenav dimension */
  --sidebar-width: 240px;
}

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

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

/* ==========================================================================
   PRIMITIVES & TYPOGRAPHY SCALE (§4, §6)
   ========================================================================== */

.type-display {
  font-size: var(--font-size-display);
  line-height: var(--line-height-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.type-large {
  font-size: var(--font-size-large);
  line-height: var(--line-height-large);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.type-body {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  font-weight: 400;
  color: var(--color-text-body);
}

.type-small {
  font-size: var(--font-size-small);
  line-height: var(--line-height-small);
  font-weight: 400;
  color: var(--color-text-muted);
}

.type-kicker {
  font-size: var(--font-size-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.mono {
  font-family: var(--font-mono);
}

.tabular-nums {
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   LAYOUT STRUCTURE (§3: Editorial Grid, Max-Width)
   ========================================================================== */

.app-layout {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* Backdrop for Mobile Drawer */
.nav-backdrop {
  display: none;
}

/* Sidenav: Editorial Table of Contents Primitive */
.sidenav {
  width: var(--sidebar-width);
  flex-shrink: 0;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  padding: var(--space-6) var(--space-5);
  position: sticky;
  top: 0;
  height: 100vh;
  background-color: var(--color-bg);
  z-index: 50;
  transition: transform 0.22s ease;
}

.sidenav-brand {
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.brand-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-title-wrap {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.brand-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text);
  text-transform: uppercase;
}

.nav-close-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: var(--space-1);
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.nav-close-btn:hover {
  color: var(--color-text);
}

.sidenav-action {
  margin-bottom: var(--space-6);
}

.sidenav-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-2);
  background: transparent;
  border: none;
  border-left: 2px solid transparent;
  color: var(--color-text-muted);
  font-size: var(--font-size-body);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
}

.nav-link:hover {
  color: var(--color-text);
  background-color: var(--color-bg-subtle);
}

.nav-link.active {
  color: var(--color-text);
  font-weight: 600;
  border-left-color: var(--color-accent);
  background-color: var(--color-bg-subtle);
}

.nav-badge {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  padding: 1px 6px;
  background-color: color-mix(in srgb, var(--color-text) 6%, var(--brand-bg));
}

.nav-link.active .nav-badge {
  color: var(--color-text);
  font-weight: 600;
}

.sidenav-footer {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  min-width: 0;
}

.main-header {
  padding: var(--space-5) var(--space-7);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-heading-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 6px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  line-height: 0;
  transition: all 0.15s ease;
}

.mobile-nav-toggle:hover {
  background: var(--color-bg-subtle);
}

.header-search {
  display: flex;
  align-items: center;
  min-width: 260px;
}

.main-content {
  padding: var(--space-6) var(--space-7) var(--space-8);
  max-width: 960px;
  width: 100%;
}

/* ==========================================================================
   BUTTONS & ACTIONS (§7: Text + Minimal Border or Text-only Action)
   ========================================================================== */

.btn-action {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: inherit;
  font-size: var(--font-size-small);
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-action:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-text-muted);
}

.btn-action:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-accent-action {
  border-color: var(--color-accent);
  color: var(--color-accent);
  font-weight: 600;
}

.btn-accent-action:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-accent);
}

.btn-block {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-body);
}

.btn-link {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-family: inherit;
  font-size: var(--font-size-small);
  cursor: pointer;
  padding: 0;
  transition: color 0.15s ease;
  text-decoration: none;
}

.btn-link:hover {
  color: var(--color-text);
}

.btn-link-danger {
  color: var(--color-danger);
}

.btn-link-danger:hover {
  color: color-mix(in srgb, var(--color-danger) 80%, black);
}

/* ==========================================================================
   INPUT PRIMITIVES
   ========================================================================== */

.input-editorial {
  width: 100%;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: inherit;
  font-size: var(--font-size-body);
  padding: var(--space-2) var(--space-3);
  outline: none;
  transition: border-color 0.15s ease;
}

.input-editorial:focus {
  border-color: var(--color-text);
}

.input-editorial::placeholder {
  color: var(--color-text-muted);
  opacity: 0.8;
}

.textarea-editorial {
  resize: vertical;
  min-height: 72px;
}

/* ==========================================================================
   LIST & QUEUE PRIMITIVE (§8: Row → Information → Action)
   ========================================================================== */

.editorial-list {
  display: flex;
  flex-direction: column;
}

.editorial-row {
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.editorial-row:first-child {
  padding-top: var(--space-2);
}

.row-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-4);
}

.row-heading {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.row-body {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-text-body);
}

.row-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  flex-wrap: wrap;
  align-items: center;
}

.meta-item {
  display: flex;
  gap: var(--space-1);
}

.meta-label {
  font-weight: 500;
  color: var(--color-text);
}

.row-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Editorial Badges & Pills */
.editorial-badge {
  font-size: var(--font-size-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.badge-strong {
  color: var(--color-accent);
}

.badge-success {
  color: var(--color-success);
}

.badge-error {
  color: var(--color-danger);
}

.entity-tag {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  padding: 1px 6px;
  background-color: var(--color-bg-subtle);
}

/* ==========================================================================
   PRIORITIES EDITORIAL GRID/TABLE
   ========================================================================== */

.priorities-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
}

.priority-item {
  background-color: var(--color-bg);
  padding: var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-3);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.priority-item:hover {
  background-color: var(--color-bg-subtle);
}

.priority-item-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-2);
}

.priority-item-name {
  font-size: var(--font-size-body);
  font-weight: 600;
  color: var(--color-text);
  line-height: var(--line-height-large);
}

.priority-item-count {
  font-size: var(--font-size-small);
  font-weight: 600;
  padding: 1px 6px;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.priority-item-count.has-count {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.priority-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}

/* Empty State Primitive */
.empty-notice {
  padding: var(--space-7) 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  color: var(--color-text-muted);
}

/* Link primitive */
a.editorial-link {
  color: var(--color-text-body);
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-all;
}

a.editorial-link:hover {
  color: var(--color-text);
}

/* ==========================================================================
   MINIMAL EDITORIAL MODAL & FORMS (§6 Primitives)
   ========================================================================== */

.editorial-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: var(--space-4);
}

.editorial-modal {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  max-width: 540px;
  width: 100%;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  box-shadow: none;
}

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

.modal-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--font-size-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.form-error {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
  font-size: var(--font-size-small);
  background-color: color-mix(in srgb, var(--color-danger) 6%, var(--brand-bg));
}

.modal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   LOGIN SCREEN (§1: Borderless Editorial Block Presentation)
   ========================================================================== */

.login-viewport {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6) var(--space-4);
  background-color: var(--color-bg);
}

.login-container {
  max-width: 400px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.login-header {
  text-align: left;
}

.login-title {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-accent);
}

.login-block {
  background-color: var(--color-bg-subtle);
  padding: var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  border: none;
}

.login-block .form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.login-block .form-label {
  font-size: var(--font-size-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.login-input-clean {
  width: 100%;
  background-color: var(--color-bg);
  border: none;
  outline: none;
  color: var(--color-text);
  font-family: inherit;
  font-size: var(--font-size-body);
  padding: var(--space-3) var(--space-4);
  transition: box-shadow 0.15s ease;
}

.login-input-clean::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

.login-input-clean:focus {
  box-shadow: 0 0 0 2px var(--color-bg-tint), inset 0 0 0 1px var(--color-accent);
}

.login-submit-btn {
  width: 100%;
  padding: var(--space-3);
  background-color: var(--color-accent);
  color: #ffffff;
  border: none;
  font-family: inherit;
  font-size: var(--font-size-body);
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.login-submit-btn:hover {
  opacity: 0.92;
}

.login-submit-btn:active {
  transform: translateY(1px);
}

.login-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.user-role-badge {
  font-size: var(--font-size-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 1px 6px;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.user-role-badge.role-admin {
  border-color: var(--color-accent);
  color: var(--color-accent);
}


/* ==========================================================================
   RESPONSIVE BREAKPOINTS: MOBILE SLIDE-IN DRAWER
   ========================================================================== */

@media (max-width: 768px) {
  /* Toggle in header becomes visible */
  .mobile-nav-toggle {
    display: inline-flex;
  }

  /* Close text in drawer becomes visible */
  .nav-close-btn {
    display: inline-flex;
  }

  /* Backdrop scrim overlay */
  .nav-backdrop {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-backdrop);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
    z-index: 90;
  }

  .nav-backdrop.is-active {
    opacity: 1;
    pointer-events: auto;
  }

  /* Slide-in Sidenav Drawer */
  .sidenav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 260px;
    height: 100vh;
    transform: translateX(-100%);
    box-shadow: none;
    border-right: 1px solid var(--color-border);
    z-index: 100;
    padding: var(--space-6) var(--space-5);
  }

  .sidenav.is-open {
    transform: translateX(0);
  }

  .main-header {
    padding: var(--space-4) var(--space-4);
  }

  .main-content {
    padding: var(--space-5) var(--space-4) var(--space-7);
  }

  .header-search {
    width: 100%;
    min-width: 100%;
  }
}