/* ==========================================================================
   Windows 95/98 Authentic CSS Design System
   ========================================================================== */

:root {
  --win-bg: #c0c0c0;
  --win-white: #ffffff;
  --win-light: #dfdfdf;
  --win-gray: #808080;
  --win-dark: #000000;
  --win-navy: #000080;
  --win-blue-grad: #1084d0;
  --win-desktop: #008080;
  --win-highlight: #000080;
  --win-highlight-text: #ffffff;
  
  --win-font: "MS Sans Serif", Tahoma, "Segoe UI", Arial, sans-serif;
  --win-font-mono: "Courier New", Courier, monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--win-font);
  font-size: 11px;
  background-color: var(--win-desktop);
  color: var(--win-dark);
  user-select: none;
  overflow-x: hidden;
  overflow-y: auto;
  min-height: 100vh;
  width: 100%;
  -webkit-font-smoothing: antialiased;
}

/* 3D Border Mixins via Utilities */
.win-outset {
  border: 2px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray);
}

.win-inset {
  border: 2px solid;
  border-color: var(--win-gray) var(--win-white) var(--win-white) var(--win-gray);
  box-shadow: inset 1px 1px 0px var(--win-dark), inset -1px -1px 0px var(--win-light);
  background-color: var(--win-white);
}

.win-well {
  border: 2px solid;
  border-color: var(--win-gray) var(--win-white) var(--win-white) var(--win-gray);
  box-shadow: inset 1px 1px 0px var(--win-dark), inset -1px -1px 0px var(--win-light);
  background-color: var(--win-bg);
}

/* Desktop & Window Container */
.desktop-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
  background-color: var(--win-desktop);
  padding: 8px;
  box-sizing: border-box;
}

.win-window {
  background-color: var(--win-bg);
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
  min-height: calc(100vh - 16px);
  min-width: 0;
  border: 2px solid;
  border-color: var(--win-light) var(--win-dark) var(--win-dark) var(--win-light);
  box-shadow: inset 1px 1px 0px var(--win-white), inset -1px -1px 0px var(--win-gray);
  position: relative;
  box-sizing: border-box;
}

/* Window Titlebar */
.win-titlebar {
  background: linear-gradient(90deg, var(--win-navy) 0%, var(--win-blue-grad) 100%);
  color: var(--win-white);
  padding: 3px 4px 3px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: bold;
  font-size: 12px;
  letter-spacing: 0.5px;
  min-height: 26px;
  line-height: 1;
}

.win-titlebar-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.win-titlebar-icon {
  width: 18px;
  height: 18px;
  image-rendering: pixelated;
  flex-shrink: 0;
}

.win-titlebar-text {
  text-shadow: 1px 1px 0px rgba(0, 0, 0, 0.4);
}

.win-titlebar-controls {
  display: flex;
  align-items: center;
  gap: 2px;
}

.win-titlebar-btn {
  width: 16px;
  height: 14px;
  background-color: var(--win-bg);
  border: 1px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  color: var(--win-dark);
}

.win-titlebar-btn:active {
  border-color: var(--win-dark) var(--win-white) var(--win-white) var(--win-dark);
  box-shadow: inset 1px 1px 0px var(--win-gray);
  padding-top: 1px;
  padding-left: 1px;
}

/* Menu Bar */
.win-menubar {
  display: flex;
  align-items: center;
  background-color: var(--win-bg);
  padding: 1px 6px 2px 6px;
  border-bottom: 1px solid var(--win-gray);
  position: relative;
  z-index: 100;
}

.win-menu-item {
  position: relative;
  padding: 3px 7px;
  cursor: pointer;
  font-size: 11px;
}

.win-menu-item:hover,
.win-menu-item.active {
  background-color: var(--win-navy);
  color: var(--win-white);
}

.win-menu-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray), 2px 2px 4px rgba(0,0,0,0.3);
  min-width: 140px;
  z-index: 1000;
  padding: 2px;
}

.win-menu-item.open .win-menu-dropdown {
  display: block;
}

.win-dropdown-item {
  padding: 4px 18px 4px 14px;
  color: var(--win-dark);
  display: block;
  cursor: pointer;
  white-space: nowrap;
}

.win-dropdown-item:hover {
  background-color: var(--win-navy);
  color: var(--win-white);
}

.win-dropdown-separator {
  height: 1px;
  background-color: var(--win-gray);
  border-bottom: 1px solid var(--win-white);
  margin: 3px 2px;
}

/* Tab Bar */
.win-tab-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 8px 10px 4px 10px;
  width: 100%;
  box-sizing: border-box;
}

.win-tab-bar {
  display: flex;
  position: relative;
  z-index: 10;
  gap: 2px;
  padding-left: 4px;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.win-tab-bar::-webkit-scrollbar {
  display: none;
}

.win-tab {
  background-color: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-white) var(--win-dark) transparent var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px 0px 0px var(--win-gray);
  border-top-left-radius: 3px;
  border-top-right-radius: 3px;
  padding: 4px 12px 3px 12px;
  cursor: pointer;
  font-size: 11px;
  position: relative;
  top: 2px;
  color: var(--win-dark);
  text-decoration: none;
  flex-shrink: 0;
}

.win-tab.active {
  top: 0px;
  padding-top: 5px;
  padding-bottom: 5px;
  border-bottom: none;
  font-weight: bold;
  z-index: 15;
  background-color: var(--win-bg);
  box-shadow: inset 1px 1px 0px var(--win-white), inset -1px 0px 0px var(--win-gray);
}

.win-tab:not(.active):hover {
  background-color: #d6d6d6;
}

/* Tab Panel & Content Frame */
.win-tab-content-frame {
  flex: 1;
  background-color: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray);
  padding: 10px;
  display: flex;
  flex-direction: column;
  position: relative;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  overflow: visible;
}

.tab-panel {
  display: none;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.tab-panel.active {
  display: flex;
}

/* Groupbox / Fieldset */
.win-groupbox {
  border: 2px groove var(--win-light);
  padding: 8px 10px 10px 10px;
  margin: 0;
  position: relative;
  background-color: transparent;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.win-groupbox legend {
  padding: 0 4px;
  font-weight: normal;
  color: var(--win-dark);
  font-size: 11px;
}

/* Standard Win95 Buttons */
.win-btn {
  font-family: var(--win-font);
  font-size: 11px;
  background-color: var(--win-bg);
  color: var(--win-dark);
  border: 2px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray);
  padding: 4px 14px;
  cursor: pointer;
  min-width: 72px;
  min-height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  text-decoration: none;
  white-space: nowrap;
}

.win-btn:active,
.win-btn.pressed {
  border-color: var(--win-dark) var(--win-white) var(--win-white) var(--win-dark);
  box-shadow: inset 1px 1px 0px var(--win-dark), inset -1px -1px 0px var(--win-light);
  padding: 5px 13px 3px 15px;
}

.win-btn:focus-visible {
  outline: 1px dotted var(--win-dark);
  outline-offset: -4px;
}

.win-btn-default {
  border-width: 2px;
  outline: 1px solid var(--win-dark);
  outline-offset: -1px;
}

/* Inputs & Form Controls */
.win-input,
.win-textarea,
.win-select {
  font-family: var(--win-font);
  font-size: 11px;
  background-color: var(--win-white);
  color: var(--win-dark);
  border: 2px solid;
  border-color: var(--win-gray) var(--win-white) var(--win-white) var(--win-gray);
  box-shadow: inset 1px 1px 0px var(--win-dark), inset -1px -1px 0px var(--win-light);
  padding: 3px 5px;
  outline: none;
  max-width: 100%;
  box-sizing: border-box;
}

.win-input:focus,
.win-textarea:focus,
.win-select:focus {
  outline: none;
}

/* Number Spinner Component */
.win-spinner {
  display: inline-flex;
  align-items: stretch;
  position: relative;
}

.win-spinner input[type="number"] {
  width: 58px;
  text-align: right;
  padding-right: 18px;
  -moz-appearance: textfield;
  appearance: textfield;
}

.win-spinner input[type="number"]::-webkit-outer-spin-button,
.win-spinner input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.win-spinner-buttons {
  position: absolute;
  right: 2px;
  top: 2px;
  bottom: 2px;
  width: 15px;
  display: flex;
  flex-direction: column;
}

.win-spin-btn {
  flex: 1;
  background-color: var(--win-bg);
  border: 1px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray);
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 7px;
  cursor: pointer;
  line-height: 1;
  color: var(--win-dark);
}

.win-spin-btn:active {
  border-color: var(--win-dark) var(--win-white) var(--win-white) var(--win-dark);
  box-shadow: inset 1px 1px 0px var(--win-gray);
  padding-top: 1px;
}

/* Radio buttons & Checkboxes */
.win-radio-label,
.win-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 11px;
  user-select: none;
}

.win-radio,
.win-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  margin: 0;
  background-color: var(--win-white);
  cursor: pointer;
  position: relative;
}

.win-radio {
  border-radius: 50%;
  border: 2px solid;
  border-color: var(--win-gray) var(--win-white) var(--win-white) var(--win-gray);
  box-shadow: inset 1px 1px 0px var(--win-dark), inset -1px -1px 0px var(--win-light);
}

.win-radio:checked::after {
  content: "";
  display: block;
  width: 5px;
  height: 5px;
  background-color: var(--win-dark);
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
}

.win-checkbox {
  border: 2px solid;
  border-color: var(--win-gray) var(--win-white) var(--win-white) var(--win-gray);
  box-shadow: inset 1px 1px 0px var(--win-dark), inset -1px -1px 0px var(--win-light);
}

.win-checkbox:checked::after {
  content: "✔";
  position: absolute;
  font-size: 10px;
  color: var(--win-dark);
  top: -2px;
  left: 1px;
  font-weight: bold;
}

/* Status Bar */
.win-statusbar {
  display: flex;
  align-items: stretch;
  background-color: var(--win-bg);
  border-top: 1px solid var(--win-gray);
  padding: 3px 4px;
  gap: 4px;
  height: 24px;
  flex-shrink: 0;
  margin-top: auto;
}

.win-status-panel {
  display: flex;
  align-items: center;
  padding: 2px 6px;
  font-size: 10px;
  border: 1px solid;
  border-color: var(--win-gray) var(--win-white) var(--win-white) var(--win-gray);
  box-shadow: inset 1px 1px 0px var(--win-dark);
  background-color: var(--win-bg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.win-status-panel.flex-main {
  flex: 1;
}

/* Dialog / Modal Window */
.win-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.25);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.win-modal-overlay.open {
  display: flex;
}

.win-modal-window {
  background-color: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray), 3px 3px 10px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-width: calc(100vw - 16px);
  max-height: 90vh;
  box-sizing: border-box;
}

.win-modal-body {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.win-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 8px 16px 14px 16px;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 16px;
  height: 16px;
  background-color: var(--win-light);
}

::-webkit-scrollbar-thumb {
  background-color: var(--win-bg);
  border: 1px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray);
}

::-webkit-scrollbar-button {
  background-color: var(--win-bg);
  border: 1px solid;
  border-color: var(--win-white) var(--win-dark) var(--win-dark) var(--win-white);
  box-shadow: inset 1px 1px 0px var(--win-light), inset -1px -1px 0px var(--win-gray);
  width: 16px;
  height: 16px;
}