/*
* Modernized jQuery UI Theme
* Based on jQuery UI v1.12.1
* Transformed for 2026: Minimalist, Tactile, and Accessible
*/

:root {
  /* Modern Color Palette */
  --ui-font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --ui-bg-main: #ffffff;
  --ui-bg-surface: #f8fafc;
  --ui-primary: #4f46e5; /* Indigo Accent */
  --ui-primary-contrast: #ffffff;
  --ui-border-color: #e2e8f0;
  --ui-border-hover: #cbd5e1;
  --ui-text-main: #1e293b;
  --ui-text-muted: #64748b;
  --ui-radius: 10px;
  --ui-shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --ui-shadow-md: 0 10px 15px -3px rgba(0,0,0,0.1);
  --ui-error: #ef4444;
}

/* --- CORE FUNCTIONAL HELPERS (Keep these for jQuery UI to work) --- */
.ui-helper-hidden { display: none; }
.ui-helper-hidden-accessible { border: 0; clip: rect(0 0 0 0); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px; }
.ui-helper-reset { margin: 0; padding: 0; border: 0; outline: 0; line-height: 1.5; text-decoration: none; font-size: 100%; list-style: none; font-family: var(--ui-font-family); }
.ui-helper-clearfix:before, .ui-helper-clearfix:after { content: ""; display: table; border-collapse: collapse; }
.ui-helper-clearfix:after { clear: both; }
.ui-front { z-index: 100; }
.ui-state-disabled { cursor: default !important; pointer-events: none; opacity: 0.5; }

/* --- ICON BASE --- */
.ui-icon {
  display: inline-block;
  vertical-align: middle;
  width: 16px;
  height: 16px;
  background-repeat: no-repeat;
  /* Note: You may still need your icon sprite image, but we'll dim it for a modern look */
  opacity: 0.7;
}

/* --- WIDGET CONTAINER & TEXT --- */
.ui-widget {
  font-family: var(--ui-font-family);
  font-size: 14px;
}
.ui-widget-content {
  border: 1px solid var(--ui-border-color);
  background: var(--ui-bg-main);
  color: var(--ui-text-main);
  border-radius: var(--ui-radius);
}
.ui-widget-header {
  border-bottom: 1px solid var(--ui-border-color);
  background: var(--ui-bg-surface);
  color: var(--ui-text-main);
  font-weight: 600;
  padding: 12px;
}

/* --- INTERACTION STATES (Buttons, Links, Selectables) --- */
.ui-state-default, .ui-button {
  border: 1px solid var(--ui-border-color);
  background: var(--ui-bg-main);
  color: var(--ui-text-main);
  border-radius: 8px;
  padding: 8px 16px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--ui-shadow-sm);
  cursor: pointer;
  outline: none;
}

.ui-state-hover, .ui-state-focus, .ui-button:hover {
  border-color: var(--ui-border-hover);
  background: var(--ui-bg-surface);
  color: #000;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.ui-state-active, .ui-button:active {
  background: var(--ui-primary) !important;
  color: var(--ui-primary-contrast) !important;
  border-color: var(--ui-primary) !important;
}

/* --- DATEPICKER (Major Modernization) --- */
.ui-datepicker {
  width: 300px;
  padding: 16px;
  box-shadow: var(--ui-shadow-md);
  border: 1px solid var(--ui-border-color);
  display: none;
  background: #fff;
  z-index: 1000 !important;
}

.ui-datepicker-header {
  position: relative;
  padding: 0 0 12px 0;
  border: none;
  background: transparent;
}

.ui-datepicker-title {
  text-align: center;
  font-weight: 700;
  font-size: 1.1em;
}

.ui-datepicker prev, .ui-datepicker next {
  cursor: pointer;
}

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

.ui-datepicker th {
  padding: 8px 0;
  text-align: center;
  font-weight: 500;
  color: var(--ui-text-muted);
  font-size: 12px;
  text-transform: uppercase;
}

.ui-datepicker td {
  padding: 2px;
}

.ui-datepicker td a, .ui-datepicker td span {
  display: block;
  padding: 8px;
  text-align: center;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.2s;
}

.ui-datepicker-calendar .ui-state-default {
  border: none;
  background: transparent;
}

.ui-datepicker-calendar .ui-state-hover {
  background: var(--ui-bg-surface);
}

.ui-datepicker-calendar .ui-state-active {
  background: var(--ui-primary) !important;
  color: white !important;
}

/* --- DIALOGS & MODALS --- */
.ui-dialog {
  padding: 0;
  box-shadow: var(--ui-shadow-md);
  border: none;
  overflow: hidden;
}

.ui-dialog-titlebar {
  padding: 16px 20px;
  background: var(--ui-bg-surface);
  border-radius: 0;
}

.ui-dialog-content {
  padding: 20px !important;
  font-size: 15px;
  line-height: 1.6;
}

.ui-dialog-buttonpane {
  margin-top: 0;
  background: var(--ui-bg-surface);
  padding: 12px 20px;
  border-top: 1px solid var(--ui-border-color);
}

/* --- TABS --- */
.ui-tabs {
  border: none;
  background: transparent;
}

.ui-tabs-nav {
  display: flex;
  background: transparent;
  border-bottom: 1px solid var(--ui-border-color);
  padding: 0;
  gap: 10px;
}

.ui-tabs-nav li {
  border: none;
  background: transparent;
  margin: 0;
  padding: 0;
}

.ui-tabs-nav li a {
  padding: 10px 16px;
  font-weight: 500;
  color: var(--ui-text-muted);
  transition: color 0.2s;
}

.ui-tabs-nav li.ui-tabs-active {
  border-bottom: 2px solid var(--ui-primary);
}

.ui-tabs-nav li.ui-tabs-active a {
  color: var(--ui-primary);
}

/* --- SLIDERS --- */
.ui-slider {
  background: var(--ui-border-color);
  border-radius: 10px;
  border: none;
}

.ui-slider-handle {
  width: 18px !important;
  height: 18px !important;
  background: var(--ui-bg-main) !important;
  border: 2px solid var(--ui-primary) !important;
  border-radius: 50% !important;
  top: -6px !important;
  cursor: grab !important;
}

.ui-slider-range {
  background: var(--ui-primary);
  border-radius: 10px;
}

/* --- PROGRESS BAR --- */
.ui-progressbar {
  height: 8px;
  background: var(--ui-border-color);
  border: none;
  border-radius: 10px;
  overflow: hidden;
}

.ui-progressbar-value {
  background: var(--ui-primary);
  margin: 0;
  height: 100%;
}

/* --- TOOLTIPS --- */
.ui-tooltip {
  background: #1e293b;
  color: #fff;
  border: none;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  box-shadow: var(--ui-shadow-md);
}