/* ============================================================
   OLBIA — Design System
   Flat modern UI · Lavatera palette · WCAG 2.2 AA
   ============================================================

   Palette root: Lavatera olbia flower — #593A5D
   Neutrals and surfaces share the same purple hue angle
   for perceptual cohesion. Green is reserved exclusively
   for semantic success / positive-balance states.

   Sections:
   1.  Tokens
   2.  Pico overrides
   3.  Base & typography
   4.  Focus management
   5.  Layout (header, nav, main)
   6.  Buttons
   7.  Forms & inputs
   8.  Tables
   9.  Cards & articles
   10. Flash messages
   11. Badges (status chips)
   12. Quantity stepper
   13. Order total bar
   14. Balance / ledger
   15. Provider picker grid
   16. Empty states
   17. Login page
   18. Utilities
   19. Reduced motion
   ============================================================ */

/* === 1. TOKENS ============================================== */

:root {
  /* Surfaces */
  --ob-bg: #ddc8e8; /* page background — lavender per design */
  --ob-surface: #ffffff; /* cards, panels, inputs */
  --ob-surface-warm: #f0e6f8; /* producer info card tint */

  /* Primary — nav/button purple per design */
  --ob-primary: #694677;
  --ob-primary-dark: #4c1860; /* hover / pressed — header deep */
  --ob-primary-xdark: #38104e; /* deepest — pressed states */
  --ob-primary-mid: #7c3e92; /* medium — header mid */
  --ob-primary-tint: #eee3ef; /* light background tint */
  --ob-primary-border: #bea8d0; /* border on white */

  /* Header gradient tokens */
  --ob-header-start: #4c1860;
  --ob-header-mid: #7c3e92;
  --ob-header-end: #9852a4;
  --ob-nav-bg: #694677;

  /* Error / negative — deep rose-red
     #B5234C on #fff → 6.3:1 ✓ AA+ */
  --ob-rose: #b5234c; /* text / icons / negative balance */
  --ob-rose-light: #fceef4; /* background tint */
  --ob-rose-border: #eea0bc; /* decorative border */
  --ob-rose-decor: #d97fa3; /* non-text decoration only */

  /* Secondary — warm gold (earthy complement to purple)
     #8B6B3A on #fff → 4.7:1 ✓ AA */
  --ob-tan: #8b6b3a;
  --ob-tan-dark: #6f5429;
  --ob-tan-tint: #f5eed9;

  /* Neutral scale — purple-hue bias, not warm-brown
     ── All text roles verified against their backgrounds ── */
  --ob-n900: #1c1120; /* headings       ~18:1 on #fff ✓ AAA */
  --ob-n700: #3d2645; /* body text      ~12:1 on #fff ✓ AAA */
  --ob-n500: #7a617f; /* muted text      5.3:1 on #fff ✓ AA  */
  --ob-n400: #9e88a2; /* placeholders    3.2:1 — decorative   */
  --ob-n300: #ccb8d0; /* borders */
  --ob-n200: #e3d8e6; /* subtle dividers */
  --ob-n100: #efe8f1; /* subtle backgrounds */
  --ob-n50: #f5f1f7; /* page background */

  /* Semantic — success / positive (forest green, unchanged)
     #2A6B3A on #fff → 6.1:1 ✓ AA+ */
  --ob-success-text: #2a6b3a;
  --ob-success-bg: #e4f2e8;
  --ob-success-border: #9dcca8;

  /* Semantic — error (reuses rose tokens above) */
  --ob-error-text: var(--ob-rose);
  --ob-error-bg: var(--ob-rose-light);
  --ob-error-border: var(--ob-rose-border);

  /* Semantic — warning */
  --ob-warning-text: #785800;
  --ob-warning-bg: #fef5d9;
  --ob-warning-border: #f0cc60;

  /* Spacing — 8px base grid */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;

  /* Typography */
  --font:
    "Source Sans 3", system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --text-xs: 0.75rem; /* 12px — captions, hints */
  --text-sm: 0.875rem; /* 14px — table cells, secondary labels */
  --text-base: 1rem; /* 16px — body, inputs */
  --text-lg: 1.125rem; /* 18px — lead text */
  --text-xl: 1.25rem; /* 20px — section titles */
  --text-2xl: 1.5rem; /* 24px — page subtitles */
  --text-3xl: 1.875rem; /* 30px — page titles */

  /* Radii */
  --radius-sm: 4px;
  --radius: 6px;
  --radius-lg: 10px;
  --radius-full: 9999px;

  /* Shadows — purple-tinted, not brown */
  --shadow-sm: 0 1px 3px rgba(50, 20, 55, 0.07);
  --shadow: 0 2px 8px rgba(50, 20, 55, 0.09);
  --shadow-lg: 0 4px 20px rgba(50, 20, 55, 0.12);

  /* Transitions */
  --t-fast: 120ms ease;
  --t: 160ms ease;
}

/* === 2. PICO OVERRIDES ====================================== */

:root {
  --pico-font-family: var(--font);
  --pico-background-color: var(--ob-bg);
  --pico-color: var(--ob-n700);
  --pico-h1-color: var(--ob-n900);
  --pico-h2-color: var(--ob-n900);
  --pico-h3-color: var(--ob-n900);
  --pico-h4-color: var(--ob-n900);
  --pico-primary: var(--ob-primary);
  --pico-primary-hover: var(--ob-primary-dark);
  --pico-primary-focus: rgba(89, 58, 93, 0.22);
  --pico-primary-inverse: #ffffff;
  --pico-secondary: var(--ob-tan);
  --pico-secondary-hover: var(--ob-tan-dark);
  --pico-secondary-inverse: #ffffff;
  --pico-muted-color: var(--ob-n500);
  --pico-muted-border-color: var(--ob-n300);
  --pico-card-background-color: var(--ob-surface);
  --pico-border-radius: var(--radius);
  --pico-form-element-border-color: var(--ob-n300);
  --pico-form-element-focus-color: var(--ob-primary);
  --pico-table-border-color: var(--ob-n200);
  --pico-table-row-stripped-background-color: var(--ob-n50);
  --olbia-accent: var(--ob-rose-decor);
}

/* === 3. BASE & TYPOGRAPHY =================================== */

:root {
  color-scheme: light only;
}

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

body {
  font-family: var(--font);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--ob-n700);
  background-color: var(--ob-bg);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  color: var(--ob-n900);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 700;
}

h1 {
  font-size: var(--text-3xl);
  margin-bottom: var(--sp-6);
}
h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--sp-4);
}
h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--sp-3);
}

p {
  max-width: 65ch;
}

/* Remove Pico's default serif on headings */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font);
}

small,
.text-sm {
  font-size: var(--text-sm);
  color: var(--ob-n500);
}

a {
  color: var(--ob-primary);
  text-underline-offset: 3px;
  transition: color var(--t-fast);
}

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

strong {
  font-weight: 600;
  color: var(--ob-n900);
}

/* === 4. FOCUS MANAGEMENT ==================================== */

/* Remove Pico's default focus, replace with our own */
:focus-visible {
  outline: 2px solid var(--ob-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Buttons need tighter offset */
button:focus-visible,
[role="button"]:focus-visible,
a[role="button"]:focus-visible {
  outline-offset: 2px;
}

/* === 5. LAYOUT ============================================== */

/* Gradient header */
header.ob-header {
  background: linear-gradient(180deg, var(--ob-header-start) 0%, var(--ob-header-mid) 55%, var(--ob-header-end) 100%);
  padding: 12px 24px 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 62px;
}

.ob-header__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ob-header__wordmark {
  color: white;
  font-size: 27px;
  font-weight: 700;
  letter-spacing: -0.3px;
  font-family: var(--font);
}

.ob-header__tagline {
  color: rgba(255, 255, 255, 0.88);
  font-size: 12px;
  text-align: right;
  line-height: 1.6;
}

/* Purple nav bar */
nav.ob-nav {
  background: var(--ob-nav-bg);
  display: flex;
  align-items: stretch;
  min-height: 36px;
  position: sticky;
  top: 0;
  z-index: 100;
  overflow-x: auto;
  padding: 0;
  margin: 0;
}

.ob-nav__member {
  color: rgba(255, 255, 255, 0.80);
  font-size: 13.5px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  white-space: nowrap;
  font-family: var(--font);
}

.ob-nav__item {
  color: rgba(255, 255, 255, 0.80);
  font-size: 13.5px;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  white-space: nowrap;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  border-radius: 0;
  border-top: none;
  border-left: none;
  border-right: none;
  height: auto;
  min-height: 36px;
  transition: background-color var(--t-fast), color var(--t-fast);
  cursor: pointer;
  font-family: var(--font);
  font-weight: 400;
  line-height: 1;
}

.ob-nav__item:hover,
.ob-nav button.ob-nav__item:hover {
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-bottom-color: transparent;
  border-top: none;
  border-left: none;
  border-right: none;
}

.ob-nav__item--active {
  color: white !important;
  background: rgba(255, 255, 255, 0.13) !important;
  border-bottom: 2px solid rgba(255, 255, 255, 0.65) !important;
}

/* Make the form wrapper transparent to flex layout */
.ob-nav__logout-form {
  display: contents;
}

/* Button reset for the logout nav item */
.ob-nav button.ob-nav__item {
  background: transparent;
  border-color: transparent;
  color: rgba(255, 255, 255, 0.80);
  transform: none;
  box-shadow: none;
}

.ob-nav button.ob-nav__item:active {
  transform: none;
}

/* Logout button pushed to right */
.ob-nav__item--logout {
  margin-left: auto;
}

/* Balance chip — far right */
.ob-nav__balance {
  color: white;
  font-size: 13.5px;
  padding: 8px 14px;
  background: rgba(0, 0, 0, 0.18);
  white-space: nowrap;
  font-weight: 600;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font);
  user-select: none;
}

.ob-nav__balance:hover {
  background: rgba(0, 0, 0, 0.28);
}

main.container {
  padding-top: var(--sp-8);
  padding-bottom: var(--sp-16);
}

/* Page header row: title + action button */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
}

.page-header h2 {
  margin-bottom: 0;
}

.page-header .actions {
  display: flex;
  gap: var(--sp-2);
  align-items: center;
  flex-shrink: 0;
}

/* button_to generates a <form> wrapper; make it invisible to the flex layout */
.page-header .actions form {
  display: contents;
}

/* === 6. BUTTONS ============================================= */

/*
  Visual hierarchy:
  [Primary]      — filled purple  — one per section max
  [Secondary]    — outline        — supporting actions
  [Destructive]  — outline rose   — after confirmation, not first-seen
  [Ghost]        — text-only      — lowest emphasis
*/

a[role="button"],
[role="button"],
button:not(.ob-nav__item),
input[type="submit"],
input[type="button"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--font);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  height: 40px;
  padding: 0 var(--sp-5);
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color var(--t-fast),
    border-color var(--t-fast),
    color var(--t-fast),
    transform var(--t-fast),
    box-shadow var(--t-fast);
  white-space: nowrap;
}

/* Primary — filled purple */
button:not(.outline):not([class*="secondary"]):not([class*="contrast"]):not(.ob-nav__item),
input[type="submit"]:not(.outline),
[role="button"]:not(.outline):not([class*="secondary"]) {
  background-color: var(--ob-primary);
  border-color: var(--ob-primary);
  color: #ffffff;
}

button:not(.outline):not([class*="secondary"]):not(.ob-nav__item):hover,
input[type="submit"]:not(.outline):hover,
[role="button"]:not(.outline):not([class*="secondary"]):hover {
  background-color: var(--ob-primary-dark);
  border-color: var(--ob-primary-dark);
}

button:not(.outline):active,
input[type="submit"]:not(.outline):active {
  transform: scale(0.98);
}

/* Outline variants */
button.outline,
a.outline,
[role="button"].outline {
  background-color: transparent;
}

button.outline:not(.secondary):not([class*="secondary"]) {
  border-color: var(--ob-primary);
  color: var(--ob-primary);
}

button.outline:not(.secondary):hover,
a.outline:not(.secondary):hover {
  background-color: var(--ob-primary-tint);
}

button.outline.secondary,
a.outline.secondary,
[role="button"].outline.secondary {
  border-color: var(--ob-n300);
  color: var(--ob-n500);
}

button.outline.secondary:hover,
a.outline.secondary:hover {
  border-color: var(--ob-n500);
  color: var(--ob-n700);
  background-color: var(--ob-n100);
}

/* Destructive */
button.destructive,
.btn-destructive {
  border-color: var(--ob-rose);
  color: var(--ob-rose);
  background-color: transparent;
}

button.destructive:hover {
  background-color: var(--ob-rose-light);
}

/* Disabled */
button:disabled,
input[type="submit"]:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* Small button variant */
.btn-sm {
  height: 32px;
  padding: 0 var(--sp-3);
  font-size: var(--text-xs);
}

/* === 7. FORMS & INPUTS ====================================== */

label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ob-n700);
  margin-bottom: var(--sp-1);
  display: block;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not(
    [type="button"]
  ),
select,
textarea {
  font-family: var(--font);
  font-size: var(--text-base);
  color: var(--ob-n900);
  background-color: var(--ob-surface);
  border: 1.5px solid var(--ob-n300);
  border-radius: var(--radius);
  padding: var(--sp-2) var(--sp-3);
  min-height: 44px;
  width: 100%;
  transition:
    border-color var(--t-fast),
    box-shadow var(--t-fast);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--ob-primary);
  box-shadow: 0 0 0 3px rgba(89, 58, 93, 0.15);
  outline: none;
}

input::placeholder {
  color: var(--ob-n400);
}

/* Checkbox & radio */
input[type="checkbox"],
input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--ob-primary);
  cursor: pointer;
}

/* Inline checkbox+label pair */
.field-check {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  cursor: pointer;
}

.field-check input[type="checkbox"] {
  flex-shrink: 0;
}

/* Field hint */
.field-hint {
  font-size: var(--text-xs);
  color: var(--ob-n500);
  margin-top: var(--sp-1);
}

/* Field error */
.field-error {
  font-size: var(--text-xs);
  color: var(--ob-rose);
  margin-top: var(--sp-1);
}

/* Form layout: 2-column grid */
.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

@media (max-width: 640px) {
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
}

/* Form actions row */
.form-actions {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
  margin-top: var(--sp-6);
}

fieldset {
  border: 1.5px solid var(--ob-n200);
  border-radius: var(--radius-lg);
  padding: var(--sp-4) var(--sp-5);
  margin-bottom: var(--sp-4);
}

legend {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--ob-n700);
  padding: 0 var(--sp-2);
}

/* === 8. TABLES ============================================== */

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

thead th {
  font-size: var(--text-sm);
  font-weight: 700;
  color: #2a0a3a;
  background-color: #b6ccd8;
  padding: 9px 13px;
  border: 1px solid #98aeba;
  text-align: left;
  white-space: nowrap;
}

tbody td {
  padding: 9px 13px;
  border: 1px solid #d6c0e2;
  vertical-align: middle;
  color: var(--ob-n700);
}

tbody tr:last-child td {
  border-bottom: 1px solid #d6c0e2;
}

tbody tr:hover td {
  background-color: #faf5fc;
}

/* Numeric columns: right-align */
td.num,
th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* Action column: right-align, no wrap */
td.td-actions {
  text-align: right;
  white-space: nowrap;
}

td.td-actions a,
td.td-actions button,
td.td-actions form {
  display: inline-flex;
  margin: 0;
}

td.td-actions a + a,
td.td-actions a + button,
td.td-actions button + button {
  margin-left: var(--sp-2);
}

/* Table wrapper for horizontal scroll on mobile */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--ob-primary-border);
  border-radius: var(--radius-lg);
  background: var(--ob-surface);
  box-shadow: 0 1px 5px rgba(70, 20, 90, 0.10);
  overflow: hidden;
}

.table-wrap table {
  margin: 0;
}

/* === 9. CARDS & ARTICLES ==================================== */

article {
  background-color: var(--ob-surface);
  border: 1px solid var(--ob-primary-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: 0 1px 5px rgba(70, 20, 90, 0.10);
}

article header {
  border-bottom: 1px solid var(--ob-n100);
  padding-bottom: var(--sp-4);
  margin-bottom: var(--sp-4);
  /* Reset sticky header inside article */
  position: static;
  box-shadow: none;
  background: transparent;
}

article > header h2 {
  margin-bottom: 0;
}

/* === 10. FLASH MESSAGES ==================================== */

.flash {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius);
  margin-bottom: var(--sp-5);
  font-size: var(--text-sm);
  font-weight: 500;
  border-left: 3px solid;
}

.flash--notice {
  background-color: var(--ob-success-bg);
  border-color: var(--ob-success-text);
  color: var(--ob-success-text);
}

.flash--alert {
  background-color: var(--ob-rose-light);
  border-color: var(--ob-rose);
  color: var(--ob-rose);
}

/* === 11. BADGES (status chips) ============================= */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 2px var(--sp-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.6;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

/* Provider status */
.badge--active {
  background-color: var(--ob-success-bg);
  color: var(--ob-success-text);
}

.badge--inactive {
  background-color: var(--ob-n100);
  color: var(--ob-n500);
}

/* Order status */
.badge--draft {
  background-color: var(--ob-n100);
  color: var(--ob-n500);
}

.badge--open {
  background-color: #d2ecd2;
  color: #285a28;
}

.badge--adjustments {
  background-color: #e8d2d6;
  color: #5a2030;
}

.badge--closed {
  background-color: #e8d2d6;
  color: #5a2030;
}

/* Dot indicator — prepend to badge text */
.badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: currentColor;
  flex-shrink: 0;
}

/* === 12. QUANTITY STEPPER =================================== */

/*
  Decision: Purpose-built stepper rather than a raw <input type="number">.
  Why: 0.5-unit precision on mobile is near-impossible with a numeric keyboard
  or browser spinners. The +/− button pattern (stepper) is the canonical mobile
  solution for small, bounded increments. Each button is 44×44px (touch target).
*/

[data-controller="quantity-stepper"] {
  display: inline-flex;
  align-items: stretch;
  border: 1.5px solid var(--ob-n300);
  border-radius: var(--radius);
  background-color: var(--ob-surface);
  overflow: hidden;
  height: 44px;
}

[data-controller="quantity-stepper"] button[data-action] {
  all: unset;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--ob-n700);
  background-color: var(--ob-n50);
  cursor: pointer;
  transition:
    background-color var(--t-fast),
    color var(--t-fast);
  flex-shrink: 0;
  user-select: none;
}

[data-controller="quantity-stepper"] button[data-action]:hover {
  background-color: var(--ob-primary-tint);
  color: var(--ob-primary-dark);
}

[data-controller="quantity-stepper"] button[data-action]:active {
  background-color: var(--ob-primary-border);
}

[data-controller="quantity-stepper"] button[data-action]:focus-visible {
  outline: 2px solid var(--ob-primary);
  outline-offset: -2px;
  border-radius: 0;
}

[data-controller="quantity-stepper"] input[type="number"] {
  all: unset;
  width: 52px;
  text-align: center;
  font-family: var(--font);
  font-size: var(--text-base);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ob-n900);
  background-color: var(--ob-surface);
  border-left: 1px solid var(--ob-n200);
  border-right: 1px solid var(--ob-n200);
  padding: 0 var(--sp-1);
  min-height: unset;
  border-radius: 0;
}

[data-controller="quantity-stepper"] input[type="number"]:focus {
  background-color: var(--ob-primary-tint);
  box-shadow: none;
}

/* Hide browser spinner arrows on the number input */
[data-controller="quantity-stepper"]
  input[type="number"]::-webkit-outer-spin-button,
[data-controller="quantity-stepper"]
  input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

[data-controller="quantity-stepper"] input[type="number"] {
  -moz-appearance: textfield;
}

/* When quantity > 0, highlight the stepper */
[data-controller="quantity-stepper"]:has(input[value]:not([value="0"])) {
  border-color: var(--ob-primary);
}

/* === 13. ORDER TOTAL BAR ==================================== */

.order-total-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--sp-4);
  margin-top: var(--sp-5);
  padding: var(--sp-4) var(--sp-5);
  background-color: var(--ob-surface);
  border: 1.5px solid var(--ob-n200);
  border-radius: var(--radius-lg);
}

.order-total-bar .total-label {
  font-size: var(--text-sm);
  color: var(--ob-n500);
  font-weight: 500;
}

.order-total-bar .total-amount {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--ob-n900);
  font-variant-numeric: tabular-nums;
  min-width: 8ch;
  text-align: right;
}

/* Sticky total bar at viewport bottom on mobile */
@media (max-width: 768px) {
  .order-total-bar {
    position: sticky;
    bottom: 0;
    border-radius: 0;
    border-left: none;
    border-right: none;
    box-shadow: 0 -4px 16px rgba(50, 20, 55, 0.1);
    background-color: var(--ob-surface);
    margin-left: calc(-1 * var(--pico-spacing, 1rem));
    margin-right: calc(-1 * var(--pico-spacing, 1rem));
  }
}

/* === 14. BALANCE / LEDGER ================================== */

.balance--negative {
  color: var(--ob-rose);
  font-weight: 600;
}

.balance-summary {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  padding: var(--sp-5) var(--sp-6);
  background-color: var(--ob-surface);
  border: 1.5px solid var(--ob-n200);
  border-radius: var(--radius-lg);
  margin-bottom: var(--sp-6);
  box-shadow: var(--shadow-sm);
}

.balance-summary .balance-label {
  font-size: var(--text-sm);
  color: var(--ob-n500);
  font-weight: 500;
}

.balance-summary .balance-amount {
  font-size: var(--text-3xl);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--ob-n900);
  line-height: 1;
}

.balance-summary .balance-amount.is-negative {
  color: var(--ob-rose);
}

.balance-summary .balance-amount.is-positive {
  color: var(--ob-success-text);
}

/* Transaction kind pills in ledger table */
.txn-kind {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 2px var(--sp-2);
  border-radius: var(--radius-full);
  display: inline-block;
}

.txn-kind--expense {
  background-color: var(--ob-rose-light);
  color: var(--ob-rose);
}

.txn-kind--cash-injection {
  background-color: var(--ob-success-bg);
  color: var(--ob-success-text);
}

/* === 15. PROVIDER PICKER GRID ============================== */

/*
  The order creation step 1: a grid of provider cards.
  Design goal: cards are scannable, feel clickable, and
  show item count at a glance so admins pick without hesitation.
*/

.provider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}

.provider-card {
  display: block;
  text-decoration: none;
  background-color: var(--ob-surface);
  border: 1.5px solid var(--ob-n200);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  transition:
    border-color var(--t),
    box-shadow var(--t),
    transform var(--t);
  cursor: pointer;
}

.provider-card:hover {
  border-color: var(--ob-primary);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.provider-card:active {
  transform: translateY(0);
}

.provider-card strong {
  display: block;
  font-size: var(--text-base);
  color: var(--ob-n900);
  margin-bottom: var(--sp-1);
}

.provider-card .provider-desc {
  font-size: var(--text-sm);
  color: var(--ob-n500);
  margin: var(--sp-1) 0 var(--sp-3);
  line-height: 1.4;
}

.provider-card .provider-meta {
  font-size: var(--text-xs);
  color: var(--ob-n500);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.provider-card .provider-meta::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: var(--radius-full);
  background-color: var(--ob-primary);
}

/* === 16. EMPTY STATES ====================================== */

/*
  Every empty state: why + what to do + CTA.
  Not a bullet point list — a helpful moment.
*/

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--sp-16) var(--sp-8);
  color: var(--ob-n500);
}

.empty-state__icon {
  font-size: 2.5rem;
  margin-bottom: var(--sp-4);
  opacity: 0.4;
}

.empty-state__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--ob-n700);
  margin-bottom: var(--sp-2);
}

.empty-state__desc {
  font-size: var(--text-sm);
  max-width: 36ch;
  margin-bottom: var(--sp-5);
  line-height: 1.6;
}

/* === 17. LOGIN PAGE ======================================== */

/*
  Decision: vertically centre the login card on the viewport.
  The cooperative's name and a clean form is all members see.
  No decorative illustration — clarity and speed matter.
*/

.login-wrap {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-8) var(--sp-4);
}

.login-card {
  width: 100%;
  max-width: 26rem;
  background-color: var(--ob-surface);
  border: 1px solid var(--ob-n200);
  border-radius: var(--radius-lg);
  padding: var(--sp-8) var(--sp-8);
  box-shadow: var(--shadow);
}

.login-card .login-logo {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--ob-primary);
  letter-spacing: -0.03em;
  margin-bottom: var(--sp-1);
  display: block;
}

.login-card .login-tagline {
  font-size: var(--text-sm);
  color: var(--ob-n500);
  margin-bottom: var(--sp-6);
}

.login-card input[type="submit"] {
  width: 100%;
  margin-top: var(--sp-2);
}

.login-links {
  margin-top: var(--sp-4);
  text-align: center;
  font-size: var(--text-sm);
}

/* === 18. UTILITIES ========================================= */

.text-muted {
  color: var(--ob-n500);
}
.text-success {
  color: var(--ob-success-text);
}
.text-error {
  color: var(--ob-rose);
}
.text-right {
  text-align: right;
}
.text-sm {
  font-size: var(--text-sm);
}
.text-xs {
  font-size: var(--text-xs);
}

.mt-0 {
  margin-top: 0;
}
.mt-4 {
  margin-top: var(--sp-4);
}
.mt-6 {
  margin-top: var(--sp-6);
}
.mt-8 {
  margin-top: var(--sp-8);
}
.mb-4 {
  margin-bottom: var(--sp-4);
}
.mb-6 {
  margin-bottom: var(--sp-6);
}

.gap-2 {
  gap: var(--sp-2);
}
.gap-3 {
  gap: var(--sp-3);
}

.flex {
  display: flex;
}
.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.flex-end {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.items-center {
  align-items: center;
}
.flex-wrap {
  flex-wrap: wrap;
}

.w-full {
  width: 100%;
}

/* Visually hidden but accessible to screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* === 19. TABS & FILTER PILLS =============================== */

.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--ob-n200);
  margin-bottom: var(--sp-4);
}

.tab-link {
  padding: var(--sp-2) var(--sp-5);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ob-n500);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.tab-link:hover {
  color: var(--ob-n900);
}

.tab-link--active {
  color: var(--ob-primary);
  border-bottom-color: var(--ob-primary);
  font-weight: 600;
}

.filter-bar {
  display: flex;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
  flex-wrap: wrap;
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-decoration: none;
  border: 1.5px solid var(--ob-n300);
  color: var(--ob-n500);
  background-color: var(--ob-surface);
  transition: border-color var(--t-fast), color var(--t-fast), background-color var(--t-fast);
}

.filter-pill:hover {
  border-color: var(--ob-primary);
  color: var(--ob-primary);
}

.filter-pill--active {
  background-color: var(--ob-primary-tint);
  border-color: var(--ob-primary);
  color: var(--ob-primary);
}

.filter-pill--negative.filter-pill--active {
  background-color: var(--ob-rose-light);
  border-color: var(--ob-rose);
  color: var(--ob-rose);
}

/* === 20. DIALOG MODAL ====================================== */

.ob-dialog {
  border: 1px solid var(--ob-primary-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 0;
  max-width: min(700px, 94vw);
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  background: var(--ob-surface);
}

.ob-dialog::backdrop {
  background: rgba(44, 10, 60, 0.45);
  backdrop-filter: blur(2px);
}

.ob-dialog__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--ob-n200);
  position: sticky;
  top: 0;
  background: var(--ob-surface);
  z-index: 1;
}

.ob-dialog__header strong {
  display: block;
  font-size: var(--text-base);
}

.ob-dialog turbo-frame {
  display: block;
  padding: var(--sp-5);
}

/* === 21. REDUCED MOTION ==================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}