/* =========================================
   Utility Apps Style Guide & Pattern Library
   Brand: Neutral, Orange + Process Blue
   Opinionated level: Minimal, no JS, no animations
   ========================================= */

/* -------------------------
   1. Base / Reset
   ------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #1f2933;
  background-color: #f7f7f7;
}

/* Make media responsive by default */
img,
svg,
video,
canvas {
  max-width: 100%;
  height: auto;
}

/* Remove default margin on headings, paragraphs, lists */
h1, h2, h3, h4, h5, h6,
p,
ul, ol {
  margin: 0;
  padding: 0;
}

/* Better lists */
ul, ol {
  padding-left: 1.25rem;
}

/* Links */
a {
  color: #005fa8;
  text-decoration: underline;
}

a:hover,
a:focus-visible {
  text-decoration: none;
}

/* Focus styles for keyboard accessibility */
:focus-visible {
  outline: 2px solid #ff6a13;
  outline-offset: 2px;
}

/* Table base */
table {
  border-collapse: collapse;
  width: 100%;
}

/* -------------------------
   2. Design Tokens
   ------------------------- */

:root {
  /* Brand colors */
  --color-primary: #ff6a13;        /* Orange */
  --color-primary-soft: #ffe3d0;
  --color-accent: #0085ca;         /* Approx. Pantone Process Blue */
  --color-accent-soft: #d4ecff;

  /* Semantic colors */
  --color-success: #1a7f37;
  --color-success-soft: #d8f3df;
  --color-warning: #b57000;
  --color-warning-soft: #fff1cc;
  --color-danger: #b00020;
  --color-danger-soft: #ffd7df;

  /* Neutrals */
  --color-bg: #f7f7f7;
  --color-bg-elevated: #ffffff;
  --color-border-subtle: #d0d7de;
  --color-border-strong: #9aa4b2;
  --color-text: #1f2933;
  --color-text-muted: #6b7280;
  --color-input-bg: #ffffff;
  --color-input-border: #cbd2e1;
  --color-input-border-focus: var(--color-accent);

  /* Radius (subtle round) */
  --radius-sm: 4px;
  --radius-md: 6px;

  /* Spacing scale (normal) */
  --space-2xs: 0.125rem; /* 2px */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 0.75rem;   /* 12px */
  --space-lg: 1rem;      /* 16px */
  --space-xl: 1.5rem;    /* 24px */
  --space-2xl: 2rem;     /* 32px */

  /* Shadow (light, for cards/dialog) */
  --shadow-soft: 0 1px 3px rgba(15, 23, 42, 0.12);

  /* Layout width */
  --layout-max-width: 960px;

  /* Typography scale */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 1.875rem;
}

/* -------------------------
   3. Typography
   ------------------------- */

h1, .heading-1 {
  font-size: var(--font-size-2xl);
  line-height: 1.2;
  font-weight: 600;
}

h2, .heading-2 {
  font-size: var(--font-size-xl);
  line-height: 1.25;
  font-weight: 600;
}

h3, .heading-3 {
  font-size: var(--font-size-lg);
  line-height: 1.3;
  font-weight: 600;
}

small,
.text-xs {
  font-size: var(--font-size-xs);
}

.text-sm {
  font-size: var(--font-size-sm);
}

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

/* Page titles / sections */
.app-header {
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--color-border-subtle);
  background-color: var(--color-bg-elevated);
}

.app-header__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.app-header__subtitle {
  margin-top: var(--space-xs);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* -------------------------
   4. Layout Helpers
   (minimal but very reusable)
   ------------------------- */

/* Page container */
.app-shell {
  min-height: 100vh;
  background-color: var(--color-bg);
}

.app-main {
  max-width: var(--layout-max-width);
  margin: 0 auto;
  padding: var(--space-lg);
}

.app-main--narrow {
  max-width: 540px;
}

/* Stack items vertically with regular spacing */
.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Tighter vertical stack */
.stack--tight {
  gap: var(--space-sm);
}

/* Horizontal cluster with wrapping */
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

/* Simple responsive grid for cards / inputs */
.grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Utility spacing */
.section {
  margin-bottom: var(--space-2xl);
}

/* Align right (e.g., for button groups) */
.align-right {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
}

/* -------------------------
   5. Buttons
   ------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background-color: var(--color-border-subtle);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

/* Primary: orange */
.btn--primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

/* Accent: process blue */
.btn--accent {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

/* Ghost / secondary */
.btn--ghost {
  background-color: transparent;
  border-color: var(--color-border-subtle);
  color: var(--color-text);
}

/* Destructive */
.btn--danger {
  background-color: var(--color-danger);
  border-color: var(--color-danger);
  color: #ffffff;
}

/* Disabled state */
.btn[disabled],
.btn--disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* -------------------------
   6. Form Elements
   ------------------------- */

.label {
  display: inline-block;
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.input,
.textarea,
.select {
  width: 100%;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-input-border);
  background-color: var(--color-input-bg);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  outline: 2px solid var(--color-input-border-focus);
  outline-offset: 2px;
  border-color: var(--color-input-border-focus);
}

/* Textarea */
.textarea {
  min-height: 80px;
  resize: vertical;
}

/* Row for checkbox, radio + label */
.field-inline {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Help and error text */
.field-help {
  margin-top: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.field-error {
  margin-top: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

/* Grouping form fields */
.field-group {
  margin-bottom: var(--space-md);
}

/* -------------------------
   7. Cards / Panels
   ------------------------- */

.card {
  background-color: var(--color-bg-elevated);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-soft);
  padding: var(--space-lg);
}

.card--muted {
  background-color: #f9fafb;
}

/* Simple card header/footer */
.card__header {
  margin-bottom: var(--space-md);
}

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

.card__subtitle {
  margin-top: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.card__footer {
  margin-top: var(--space-md);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
}

/* -------------------------
   8. Tables
   ------------------------- */

.table {
  width: 100%;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-bg-elevated);
  font-size: var(--font-size-sm);
}

.table thead {
  background-color: #f1f5f9;
}

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

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

.table tbody tr:nth-child(even) {
  background-color: #f9fafb;
}

/* -------------------------
   9. Status Pills / Tags
   ------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-sm);
  border-radius: 999px;
  font-size: var(--font-size-xs);
  border: 1px solid transparent;
}

/* Semantic badges */
.badge--primary {
  background-color: var(--color-primary-soft);
  color: #7a3302;
  border-color: #ffc7a0;
}

.badge--accent {
  background-color: var(--color-accent-soft);
  color: #00446a;
  border-color: #9ad0ff;
}

.badge--success {
  background-color: var(--color-success-soft);
  color: #0b4b21;
  border-color: #9ddbb0;
}

.badge--warning {
  background-color: var(--color-warning-soft);
  color: #5b3600;
  border-color: #ffdd80;
}

.badge--danger {
  background-color: var(--color-danger-soft);
  color: #650012;
  border-color: #ffadb9;
}

/* -------------------------
   10. Alerts / Inline Messages
   ------------------------- */

.alert {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
}

.alert--info {
  background-color: var(--color-accent-soft);
  border-color: #9ad0ff;
  color: #00446a;
}

.alert--success {
  background-color: var(--color-success-soft);
  border-color: #9ddbb0;
  color: #0b4b21;
}

.alert--warning {
  background-color: var(--color-warning-soft);
  border-color: #ffdd80;
  color: #5b3600;
}

.alert--danger {
  background-color: var(--color-danger-soft);
  border-color: #ffadb9;
  color: #650012;
}

/* -------------------------
   11. Simple Toolbar / Controls Bar
   ------------------------- */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: var(--color-bg-elevated);
}

/* Left/right slots if needed */
.toolbar__left,
.toolbar__right {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

@media (max-width: 640px) {
  .app-main {
    padding: var(--space-lg) var(--space-md);
  }

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

  .toolbar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .toolbar__right {
    width: 100%;
    justify-content: flex-start;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .align-right {
    justify-content: flex-start;
  }
}

/* -------------------------
   12. App-specific helpers
   ------------------------- */

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.page-header__meta {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.form-grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.kanban-columns {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: flex-end;
}

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

.muted-link:hover {
  color: var(--color-text);
  text-decoration: underline;
}

.kanban-task {
  display: block;
  padding: var(--space-md);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  background-color: #f9fafb;
  color: var(--color-text);
  text-decoration: none;
}

.kanban-task:hover {
  border-color: var(--color-accent);
}

.empty-state {
  text-align: center;
  color: var(--color-text-muted);
}