/* ============================================================
   PROPERTY ORDER CONVENTION
   1. Layout      (display, position)
   2. Box model   (margin, padding, border, width, height)
   3. Visual      (background, color, shadow)
   4. Typography  (font-size, font-weight, text-decoration)
   5. Interactive (cursor, transition)
   ============================================================ */


/* ============================================================
   TOKENS
   ============================================================ */

:root {
  /* Colors — defaults overridden in app theme.css */
  --color-primary:       #333333;
  --color-primary-hover: #111111;
  --color-bg:            #ffffff;
  --color-bg-secondary:  #f5f5f5;
  --color-text:          #111111;
  --color-text-muted:    #666666;
  --color-border:        #dddddd;
  --color-error:         #dc2626;
  --color-error-hover:   #b91c1c;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;

  /* Typography */
  --font-body:      sans-serif;
  --font-size-xs:   0.75rem;
  --font-size-sm:   0.875rem;
  --font-size-base: 1rem;
  --font-size-lg:   1.125rem;
  --line-height:    1.5;

  /* Shape */
  --radius: 6px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}


/* ============================================================
   RESET
   ============================================================ */

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
}


/* ============================================================
   TYPOGRAPHY
   ============================================================ */

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-md);
  line-height: 1.2;
}

p {
  margin: 0 0 var(--space-md);
}

a {
  color: var(--color-primary);
}

a:hover {
  color: var(--color-primary-hover);
}

small {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}


/* ============================================================
   LAYOUT
   ============================================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Full-screen centered layout */
.page-centered {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-xl);
}

.hidden {
  display: none;
}

/* Two equal columns */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* Fixed-width aside + fluid main */
.sidebar-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .sidebar-layout {
    grid-template-columns: 1fr;
  }
}

.sidebar-layout-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.sidebar-layout-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}


/* ============================================================
   COMPONENTS — BUTTON
   ============================================================ */

.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #ffffff;
  font-size: var(--font-size-base);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease;
}

.btn:hover {
  background: var(--color-primary-hover);
  color: #ffffff;
}

.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-lg);
}

.btn-outline {
  border: 1px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #ffffff;
}

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

.btn-danger:hover {
  background: var(--color-error-hover);
}

/* Fixed-size square button */
.btn-square {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-secondary);
  color: var(--color-text);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

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


/* ============================================================
   COMPONENTS — CARD
   ============================================================ */

/* Raised, shadowed content block */
.card {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  box-shadow: var(--shadow);
}

.card-sm {
  padding: var(--space-md);
}

.card-lg {
  padding: var(--space-xl);
}


/* ============================================================
   COMPONENTS — PANEL
   ============================================================ */

/* Bordered content block, no shadow */
.panel {
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
}

/* Section divider title inside a panel */
.panel-title {
  margin: 0 0 var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}


/* ============================================================
   COMPONENTS — FORM
   ============================================================ */

.form-group {
  margin: 0 0 var(--space-md);
}

label {
  display: block;
  margin: 0 0 var(--space-xs);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.form-control {
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--font-size-base);
  transition: border-color 0.15s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-control-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
}

.form-control-lg {
  padding: var(--space-md);
  font-size: var(--font-size-lg);
}

.form-error {
  margin: var(--space-xs) 0 0;
  color: var(--color-error);
  font-size: var(--font-size-sm);
}

/* Centered inline validation message */
.form-warning {
  margin: 0 0 var(--space-sm);
  color: var(--color-error);
  font-size: var(--font-size-sm);
  text-align: center;
}


/* ============================================================
   COMPONENTS — TABLE
   ============================================================ */

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

.table th,
.table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.table th {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

/* Indented child row */
.table-subrow td {
  padding-top: 0;
  border-bottom: none;
}

/* Left-bordered indented content within a subrow */
.table-subrow-inner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xs) 0 var(--space-sm);
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-border);
}


/* ============================================================
   COMPONENTS — NAVBAR
   ============================================================ */

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.navbar-brand {
  color: var(--color-text);
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-decoration: none;
}

.navbar-brand:hover {
  color: var(--color-text);
}

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

/* Secondary navigation bar below the navbar */
.subnav {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}


/* ============================================================
   COMPONENTS — PAGE
   ============================================================ */

/* Standard padded page content area */
.page {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.page h2 {
  margin-top: var(--space-xl);
}

/* Row containing a page title and optional actions */
.page-header {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin: 0 0 var(--space-xl);
}

.page-header h1 {
  margin: 0;
}

/* Back navigation link */
.back-link {
  margin: 0 0 var(--space-lg);
}


/* ============================================================
   COMPONENTS — SECTION
   ============================================================ */

/* Vertical content block with bottom margin */
.section {
  margin: 0 0 var(--space-xl);
}

/* Uppercase muted heading with bottom border */
.section-heading {
  margin: 0 0 var(--space-sm);
  padding: var(--space-xs) 0;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Content block with top spacing */
.section-block {
  margin: var(--space-lg) 0 0;
}

.section-block ul {
  margin: var(--space-xs) 0 0;
}


/* ============================================================
   COMPONENTS — LISTS
   ============================================================ */

/* Vertical list of link-card items */
.link-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: var(--space-md) 0 0;
}

/* Bordered, padded link item */
.link-card {
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  text-decoration: none;
}

.link-card:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

/* Scrollable vertical list */
.scroll-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  max-height: 400px;
  overflow-y: auto;
}

/* Row with a leading number, content area, and trailing info */
.list-row {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-secondary);
}

.list-row-num {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Empty state placeholder */
.empty-state {
  padding: var(--space-lg);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  text-align: center;
}


/* ============================================================
   COMPONENTS — NAV LIST
   ============================================================ */

/* Vertical list of large navigational buttons */
.nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 600px;
  margin: var(--space-xl) 0 0;
}

.nav-list .btn {
  padding: var(--space-md);
  text-align: left;
}

.nav-list .btn small {
  display: block;
  margin: var(--space-xs) 0 0;
  color: rgba(255, 255, 255, 0.75);
}


/* ============================================================
   COMPONENTS — SEARCH FORM
   ============================================================ */

.search-form {
  display: flex;
  gap: var(--space-sm);
  margin: var(--space-lg) 0;
}

.search-form .form-control {
  flex: 1;
}


/* ============================================================
   COMPONENTS — STATS GRID
   ============================================================ */

/* Responsive grid of equal-width columns */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0 0;
}


/* ============================================================
   COMPONENTS — KEY-VALUE
   ============================================================ */

/* Vertical list of kv-item boxes */
.kv-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Label stacked above value */
.kv-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-secondary);
}

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

.kv-value {
  font-size: var(--font-size-lg);
  font-weight: 600;
}


/* ============================================================
   COMPONENTS — LABEL
   ============================================================ */

/* Standalone xs uppercase muted label */
.label-caps {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}


/* ============================================================
   COMPONENTS — STEPPER
   ============================================================ */

/* +/- counter: btn-square, value, btn-square */
.stepper {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.stepper-val {
  width: 32px;
  text-align: center;
  font-size: var(--font-size-lg);
  font-weight: 600;
}


/* ============================================================
   COMPONENTS — HEXAGON
   ============================================================ */

/* Hexagon-shaped container — 60px */
.hex {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border: 2px solid var(--color-primary);
  border-radius: 0;
  background: var(--color-bg);
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: 600;
  clip-path: polygon(30% 0%, 70% 0%, 100% 50%, 70% 100%, 30% 100%, 0% 50%);
}

/* Hexagon-shaped container — 32px */
.hex-sm {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-primary);
  border-radius: 0;
  background: var(--color-bg);
  color: var(--color-primary);
  font-size: var(--font-size-base);
  clip-path: polygon(30% 0%, 70% 0%, 100% 50%, 70% 100%, 30% 100%, 0% 50%);
}

/* Horizontal row of hex elements */
.hex-row {
  display: flex;
  gap: var(--space-sm);
}

/* Horizontal row of hex elements that wraps */
.hex-row-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}


/* ============================================================
   COMPONENTS — RESULT BANNER
   ============================================================ */

/* Centered outcome display — neutral state */
.result-banner {
  margin: 0 0 var(--space-lg);
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-secondary);
  text-align: center;
}

.result-banner h2 {
  margin: 0 0 var(--space-md);
  font-size: var(--font-size-base);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Success variant */
.result-banner-success {
  border-color: var(--color-primary);
}

.result-banner-success h2 {
  color: var(--color-primary);
}


/* ============================================================
   COMPONENTS — FOOTER
   ============================================================ */

.footer {
  margin: var(--space-xl) 0 0;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}


/* ============================================================
   COMPONENTS — PROGRESS BAR
   ============================================================ */

.progress-bar {
  width: 80px;
  height: 6px;
  border-radius: 3px;
  background: var(--color-bg-secondary);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--color-primary);
}


/* ============================================================
   COMPONENTS — INLINE EDIT
   ============================================================ */

/* Click-to-edit text display */
.inline-edit {
  display: block;
  min-height: 1.5rem;
  cursor: pointer;
  color: var(--color-text-muted);
}

.inline-edit:not(:empty) {
  color: var(--color-text);
}


/* ============================================================
   COMPONENTS — PRE BLOCK
   ============================================================ */

/* Scrollable preformatted content block */
.pre-block {
  margin: var(--space-xs) 0 0;
  padding: var(--space-sm);
  border-radius: var(--radius);
  background: var(--color-bg-secondary);
  overflow-x: auto;
}