/* Cana POS & ERP – standalone stylesheet (no Tailwind CDN required) */

/* ==========================================================================
   1. CSS Reset / Normalize
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  border-width: 0;
  border-style: solid;
  border-color: var(--color-surface-200);
}

html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  tab-size: 4;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  line-height: inherit;
}

hr {
  height: 0;
  color: inherit;
  border-top-width: 1px;
}

h1, h2, h3, h4, h5, h6 {
  font-size: inherit;
  font-weight: inherit;
  margin: 0;
}

a {
  color: inherit;
  text-decoration: inherit;
}

b, strong {
  font-weight: bolder;
}

small {
  font-size: 80%;
}

sub, sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub { bottom: -0.25em; }
sup { top: -0.5em; }

table {
  text-indent: 0;
  border-color: inherit;
  border-collapse: collapse;
}

button, input, optgroup, select, textarea {
  font-family: inherit;
  font-feature-settings: inherit;
  font-variation-settings: inherit;
  font-size: 100%;
  font-weight: inherit;
  line-height: inherit;
  letter-spacing: inherit;
  color: inherit;
  margin: 0;
  padding: 0;
}

button, select {
  text-transform: none;
}

button, [type='button'], [type='reset'], [type='submit'] {
  -webkit-appearance: button;
  background-color: transparent;
  background-image: none;
  cursor: pointer;
}

:-moz-focusring {
  outline: auto;
}

:-moz-ui-invalid {
  box-shadow: none;
}

progress {
  vertical-align: baseline;
}

::-webkit-inner-spin-button,
::-webkit-outer-spin-button {
  height: auto;
}

[type='search'] {
  -webkit-appearance: textfield;
  outline-offset: -2px;
}

::-webkit-search-decoration {
  -webkit-appearance: none;
}

::-webkit-file-upload-button {
  -webkit-appearance: button;
  font: inherit;
}

summary {
  display: list-item;
}

blockquote, dl, dd, figure, p, pre {
  margin: 0;
}

fieldset {
  margin: 0;
  padding: 0;
}

legend {
  padding: 0;
}

ol, ul, menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

textarea {
  resize: vertical;
}

img, svg, video, canvas, audio, iframe, embed, object {
  display: block;
  vertical-align: middle;
}

img, video {
  max-width: 100%;
  height: auto;
}

[hidden] {
  display: none !important;
}

/* ==========================================================================
   2. Custom Properties
   ========================================================================== */

:root {
  --color-surface-50: #fafafa;
  --color-surface-100: #f5f5f7;
  --color-surface-200: #e8e8ed;
  --color-surface-300: #d2d2d7;
  --color-accent: #0071e3;
  --color-accent-hover: #0077ed;
  --color-accent-light: #e8f4fd;

  --color-white: #ffffff;
  --color-black: #000000;

  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-900: #111827;

  --color-green-50: #f0fdf4;
  --color-green-100: #dcfce7;
  --color-green-500: #22c55e;
  --color-green-600: #16a34a;
  --color-green-700: #15803d;

  --color-red-50: #fef2f2;
  --color-red-200: #fecaca;
  --color-red-400: #f87171;
  --color-red-500: #ef4444;
  --color-red-600: #dc2626;
  --color-red-700: #b91c1c;

  --color-yellow-50: #fefce8;
  --color-yellow-200: #fef08a;
  --color-yellow-500: #eab308;
  --color-yellow-700: #a16207;
  --color-yellow-800: #854d0e;

  --color-blue-50: #eff6ff;
  --color-blue-700: #1d4ed8;

  --radius-lg: 0.5rem;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-3xl: 20px;

  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-elevated: 0 4px 16px rgba(0, 0, 0, 0.08);

  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  --spacing-0: 0;
  --spacing-0-5: 0.125rem;
  --spacing-1: 0.25rem;
  --spacing-1-5: 0.375rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-12: 3rem;
  --spacing-20: 5rem;

  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

/* ==========================================================================
   3. Base
   ========================================================================== */

body {
  background-color: var(--color-surface-100);
  color: var(--color-gray-900);
  font-family: var(--font-sans);
}

/* ==========================================================================
   4. Component Classes
   ========================================================================== */

.btn,
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: 0.625rem var(--spacing-4);
  border-radius: var(--radius-xl);
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 1.25rem;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn:focus,
.btn-primary:focus,
.btn-secondary:focus,
.btn-danger:focus,
.btn-ghost:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
}

.btn:disabled,
.btn-primary:disabled,
.btn-secondary:disabled,
.btn-danger:disabled,
.btn-ghost:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}

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

.btn-primary:focus {
  box-shadow: 0 0 0 2px var(--color-white), 0 0 0 4px var(--color-accent);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-gray-700);
  border-color: var(--color-surface-300);
  box-shadow: var(--shadow-soft);
}

.btn-secondary:hover {
  background-color: var(--color-surface-50);
}

.btn-secondary:focus {
  box-shadow: 0 0 0 2px var(--color-white), 0 0 0 4px var(--color-gray-300);
}

.btn-danger {
  background-color: var(--color-red-500);
  color: var(--color-white);
}

.btn-danger:hover {
  background-color: var(--color-red-600);
}

.btn-danger:focus {
  box-shadow: 0 0 0 2px var(--color-white), 0 0 0 4px var(--color-red-500);
}

.btn-ghost {
  color: var(--color-gray-600);
}

.btn-ghost:hover {
  background-color: var(--color-surface-200);
}

.btn-ghost:focus {
  box-shadow: 0 0 0 2px var(--color-white), 0 0 0 4px var(--color-gray-300);
}

.card {
  background-color: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(232, 232, 237, 0.6);
}

.card-body {
  padding: var(--spacing-5);
}

.input {
  display: block;
  width: 100%;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-surface-300);
  background-color: var(--color-white);
  box-shadow: var(--shadow-soft);
  font-size: 0.875rem;
  line-height: 1.25rem;
  padding: 0.625rem 0.875rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
}

textarea.input {
  min-height: 2.5rem;
}

select.input {
  padding-right: 2rem;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.25em 1.25em;
  appearance: none;
}

.label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-1-5);
}

.stat-card {
  background-color: var(--color-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(232, 232, 237, 0.6);
  padding: var(--spacing-5);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.stat-value {
  font-size: 1.5rem;
  line-height: 2rem;
  font-weight: 600;
  color: var(--color-gray-900);
  letter-spacing: -0.025em;
}

.stat-label {
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--color-gray-500);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: 0.625rem var(--spacing-3);
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-600);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.nav-item:hover {
  background-color: rgba(232, 232, 237, 0.6);
  color: var(--color-gray-900);
}

.nav-item-active {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: 0.625rem var(--spacing-3);
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
  font-weight: 500;
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.mobile-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-0-5);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 500;
  color: var(--color-gray-500);
}

.mobile-tab-active {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-0-5);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 500;
  color: var(--color-accent);
}

.table-wrap {
  overflow-x: auto;
  margin-left: calc(var(--spacing-5) * -1);
  margin-right: calc(var(--spacing-5) * -1);
}

.data-table {
  width: 100%;
  font-size: 0.875rem;
  line-height: 1.25rem;
  text-align: left;
}

.data-table th {
  padding: var(--spacing-3) var(--spacing-4);
  font-weight: 500;
  color: var(--color-gray-500);
  background-color: var(--color-surface-50);
  border-bottom: 1px solid var(--color-surface-200);
}

.data-table td {
  padding: var(--spacing-3) var(--spacing-4);
  border-bottom: 1px solid var(--color-surface-100);
}

.data-table tfoot td {
  padding: var(--spacing-3) var(--spacing-4);
  background-color: var(--color-surface-50);
  border-top: 1px solid var(--color-surface-200);
}

.pagination-footer {
  margin-top: var(--spacing-4);
  padding: var(--spacing-4) var(--spacing-5);
  background-color: var(--color-white);
}

.card > .table-wrap + .pagination-footer {
  margin-top: 0;
  border-top: 1px solid var(--color-surface-100);
}

.pagination-footer p {
  margin: 0;
}

.badge,
.badge-green,
.badge-red,
.badge-yellow,
.badge-blue,
.badge-gray {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 500;
}

.badge-green {
  background-color: var(--color-green-50);
  color: var(--color-green-700);
}

.badge-red {
  background-color: var(--color-red-50);
  color: var(--color-red-700);
}

.badge-yellow {
  background-color: var(--color-yellow-50);
  color: var(--color-yellow-700);
}

.badge-blue {
  background-color: var(--color-blue-50);
  color: var(--color-blue-700);
}

.badge-gray {
  background-color: var(--color-gray-100);
  color: var(--color-gray-600);
}

/* ==========================================================================
   5. Layout Utilities
   ========================================================================== */

.block { display: block; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }
.flex { display: flex; }
.hidden { display: none; }
.grid { display: grid; }

.flex-1 { flex: 1 1 0%; }
.flex-shrink-0 { flex-shrink: 0; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }

.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.items-center { align-items: center; }

.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.overflow-hidden { overflow: hidden; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

.fixed { position: fixed; }
.sticky { position: sticky; }

.inset-0 { inset: 0; }
.inset-x-0 { left: 0; right: 0; }
.inset-y-0 { top: 0; bottom: 0; }
.top-0 { top: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-50 { z-index: 50; }

.w-auto { width: auto; }
.w-full { width: 100%; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-7 { width: 1.75rem; }
.w-8 { width: 2rem; }
.w-9 { width: 2.25rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.w-24 { width: 6rem; }
.w-32 { width: 8rem; }
.w-64 { width: 16rem; }
.w-96 { width: 24rem; }

.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-7 { height: 1.75rem; }
.h-8 { height: 2rem; }
.h-9 { height: 2.25rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.h-24 { height: 6rem; }
.h-32 { height: 8rem; }
.h-64 { height: 16rem; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }

.min-h-screen { min-height: 100vh; }
.min-h-0 { min-height: 0; }
.min-w-0 { min-width: 0; }

.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }

.mx-auto { margin-left: auto; margin-right: auto; }
.ml-auto { margin-left: auto; }

.m-0 { margin: 0; }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-8 { margin-bottom: var(--spacing-8); }

.-mx-2 { margin-left: calc(var(--spacing-2) * -1); margin-right: calc(var(--spacing-2) * -1); }
.-mx-5 { margin-left: calc(var(--spacing-5) * -1); margin-right: calc(var(--spacing-5) * -1); }

.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.p-5 { padding: var(--spacing-5); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }

.px-2 { padding-left: var(--spacing-2); padding-right: var(--spacing-2); }
.px-3 { padding-left: var(--spacing-3); padding-right: var(--spacing-3); }
.px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
.px-8 { padding-left: var(--spacing-8); padding-right: var(--spacing-8); }

.py-1 { padding-top: var(--spacing-1); padding-bottom: var(--spacing-1); }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: var(--spacing-2); padding-bottom: var(--spacing-2); }
.py-3 { padding-top: var(--spacing-3); padding-bottom: var(--spacing-3); }
.py-12 { padding-top: var(--spacing-12); padding-bottom: var(--spacing-12); }
.py-20 { padding-top: var(--spacing-20); padding-bottom: var(--spacing-20); }

.pt-2 { padding-top: var(--spacing-2); }
.pt-4 { padding-top: var(--spacing-4); }

.pb-20 { padding-bottom: 5rem; }

.space-y-1 > :not([hidden]) ~ :not([hidden]) { margin-top: var(--spacing-1); }
.space-y-2 > :not([hidden]) ~ :not([hidden]) { margin-top: var(--spacing-2); }
.space-y-3 > :not([hidden]) ~ :not([hidden]) { margin-top: var(--spacing-3); }
.space-y-4 > :not([hidden]) ~ :not([hidden]) { margin-top: var(--spacing-4); }
.space-y-5 > :not([hidden]) ~ :not([hidden]) { margin-top: var(--spacing-5); }
.space-y-6 > :not([hidden]) ~ :not([hidden]) { margin-top: var(--spacing-6); }

.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ==========================================================================
   6. Typography
   ========================================================================== */

.font-sans { font-family: var(--font-sans); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.text-6xl { font-size: 3.75rem; line-height: 1; }

.tracking-tight { letter-spacing: -0.025em; }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.whitespace-nowrap { white-space: nowrap; }

.list-disc { list-style-type: disc; }
.list-inside { list-style-position: inside; }

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================================
   7. Colors – Text
   ========================================================================== */

.text-white { color: var(--color-white); }
.text-accent { color: var(--color-accent); }
.text-gray-200 { color: var(--color-gray-200); }
.text-gray-300 { color: var(--color-gray-300); }
.text-gray-400 { color: var(--color-gray-400); }
.text-gray-500 { color: var(--color-gray-500); }
.text-gray-600 { color: var(--color-gray-600); }
.text-gray-700 { color: var(--color-gray-700); }
.text-gray-900 { color: var(--color-gray-900); }
.text-green-500 { color: var(--color-green-500); }
.text-green-600 { color: var(--color-green-600); }
.text-green-700 { color: var(--color-green-700); }
.text-red-400 { color: var(--color-red-400); }
.text-red-500 { color: var(--color-red-500); }
.text-red-600 { color: var(--color-red-600); }
.text-red-700 { color: var(--color-red-700); }
.text-yellow-500 { color: var(--color-yellow-500); }
.text-yellow-700 { color: var(--color-yellow-700); }
.text-yellow-800 { color: var(--color-yellow-800); }

/* ==========================================================================
   8. Colors – Background
   ========================================================================== */

.bg-white { background-color: var(--color-white); }
.bg-accent { background-color: var(--color-accent); }
.bg-accent-light { background-color: var(--color-accent-light); }
.bg-surface-50 { background-color: var(--color-surface-50); }
.bg-surface-100 { background-color: var(--color-surface-100); }
.bg-surface-200 { background-color: var(--color-surface-200); }
.bg-green-50 { background-color: var(--color-green-50); }
.bg-green-100 { background-color: var(--color-green-100); }
.bg-red-50 { background-color: var(--color-red-50); }
.bg-red-500 { background-color: var(--color-red-500); }
.bg-red-600 { background-color: var(--color-red-600); }
.bg-yellow-50 { background-color: var(--color-yellow-50); }
.bg-gray-100 { background-color: var(--color-gray-100); }

.bg-white\/80 { background-color: rgba(255, 255, 255, 0.8); }
.bg-white\/90 { background-color: rgba(255, 255, 255, 0.9); }
.bg-surface-200\/60 { background-color: rgba(232, 232, 237, 0.6); }
.bg-yellow-50\/50 { background-color: rgba(254, 252, 232, 0.5); }
.bg-black\/40 { background-color: rgba(0, 0, 0, 0.4); }

/* ==========================================================================
   9. Borders
   ========================================================================== */

.border { border-width: 1px; }
.border-t { border-top-width: 1px; }
.border-r { border-right-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-l { border-left-width: 1px; }

.border-surface-100 { border-color: var(--color-surface-100); }
.border-surface-200 { border-color: var(--color-surface-200); }
.border-surface-300 { border-color: var(--color-surface-300); }
.border-surface-200\/60 { border-color: rgba(232, 232, 237, 0.6); }
.border-green-200 { border-color: #bbf7d0; }
.border-red-200 { border-color: var(--color-red-200); }
.border-yellow-200 { border-color: var(--color-yellow-200); }

.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: 9999px; }

.last\:border-0:last-child { border-width: 0; }

/* ==========================================================================
   10. Shadows & Effects
   ========================================================================== */

.shadow-soft { box-shadow: var(--shadow-soft); }
.shadow-card { box-shadow: var(--shadow-card); }
.shadow-elevated { box-shadow: var(--shadow-elevated); }

.backdrop-blur-sm {
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.backdrop-blur-xl {
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.opacity-30 { opacity: 0.3; }

.object-cover { object-fit: cover; }

.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-shadow { transition-property: box-shadow; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-200 { transition-duration: 200ms; }

.scale-95 { transform: scale(0.95); }

/* ==========================================================================
   11. Special Utilities
   ========================================================================== */

.safe-area-bottom {
  padding-bottom: var(--safe-area-bottom);
}

/* ==========================================================================
   12. State Variants – Hover
   ========================================================================== */

.hover\:bg-surface-50:hover { background-color: var(--color-surface-50); }
.hover\:bg-surface-200:hover { background-color: var(--color-surface-200); }
.hover\:bg-surface-200\/60:hover { background-color: rgba(232, 232, 237, 0.6); }
.hover\:bg-red-50:hover { background-color: var(--color-red-50); }
.hover\:bg-accent-hover:hover { background-color: var(--color-accent-hover); }
.hover\:text-gray-900:hover { color: var(--color-gray-900); }
.hover\:text-red-600:hover { color: var(--color-red-600); }
.hover\:underline:hover { text-decoration: underline; }
.hover\:shadow-elevated:hover { box-shadow: var(--shadow-elevated); }

/* ==========================================================================
   13. State Variants – Focus
   ========================================================================== */

.focus\:outline-none:focus { outline: 2px solid transparent; outline-offset: 2px; }
.focus\:border-accent:focus { border-color: var(--color-accent); }
.focus\:ring-accent:focus { box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15); }

/* ==========================================================================
   14. State Variants – Active
   ========================================================================== */

.active\:scale-95:active { transform: scale(0.95); }

/* ==========================================================================
   15. State Variants – Disabled
   ========================================================================== */

.disabled\:opacity-50:disabled { opacity: 0.5; }
.disabled\:cursor-not-allowed:disabled { cursor: not-allowed; }

/* ==========================================================================
   16. Responsive – sm (640px+)
   ========================================================================== */

@media (min-width: 640px) {
  .sm\:mx-0 { margin-left: 0; margin-right: 0; }
  .sm\:block { display: block; }
  .sm\:inline { display: inline; }
  .sm\:inline-flex { display: inline-flex; }
  .sm\:flex-row { flex-direction: row; }
  .sm\:items-center { align-items: center; }
  .sm\:col-span-2 { grid-column: span 2 / span 2; }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sm\:w-96 { width: 24rem; }
  .sm\:px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }
  .sm\:p-6 { padding: var(--spacing-6); }
}

/* ==========================================================================
   17. Responsive – lg (1024px+)
   ========================================================================== */

@media (min-width: 1024px) {
  .lg\:hidden { display: none; }
  .lg\:block { display: block; }
  .lg\:flex { display: flex; }
  .lg\:flex-col { flex-direction: column; }
  .lg\:flex-row { flex-direction: row; }
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:col-span-2 { grid-column: span 2 / span 2; }
  .lg\:w-96 { width: 24rem; }
  .lg\:border-t-0 { border-top-width: 0; }
  .lg\:border-l { border-left-width: 1px; }
  .lg\:pb-0 { padding-bottom: 0; }
  .lg\:px-8 { padding-left: var(--spacing-8); padding-right: var(--spacing-8); }
  .lg\:p-8 { padding: var(--spacing-8); }
}

/* ==========================================================================
   18. Responsive – xl (1280px+)
   ========================================================================== */

@media (min-width: 1280px) {
  .xl\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

/* ==========================================================================
   19. Responsive Component Overrides
   ========================================================================== */

@media (min-width: 640px) {
  .card-body { padding: var(--spacing-6); }
  .table-wrap { margin-left: 0; margin-right: 0; }
}