/* SerenityOS-like CSS */
@import url("https://fonts.googleapis.com/css2?family=Jersey+10&display=swap");

:root {
  --canvas-background: #008080;
  /* SerenityOS desktop background */
  --window-background: #c0c0c0;
  --button-face: #c0c0c0;
  --button-text: #000000;
  --button-highlight: #ffffff;
  --button-shadow: #808080;
  --button-dark-shadow: #000000;
  /* For inset effects */
  --button-active-shadow: #808080;
  /* Shadow color when button is active/pressed */

  --border-lightest: #ffffff;
  --border-light: #e6e6e6;
  /* Slightly less bright light border */
  --border-dark: #808080;
  --border-darkest: #000000;

  --active-title-bar-start: #794000;
  --active-title-bar-end: #aa7a43;
  /* Classic orange/brown for active title bar end */
  --active-title-text: #ffffff;
  --inactive-title-bar-start: #808080;
  --inactive-title-bar-end: #a0a0a0;
  /* More subtle gradient end for inactive title */
  --inactive-title-text: #c0c0c0;

  --focus-outline: #000080;
  /* Dark blue for focus */
}

body {
  background: var(--canvas-background);
  /* SerenityOS desktop background */
  font-family: "Jersey 10", sans-serif;
  font-size: 14px;
  color: var(--button-text);
  margin: 0;
  padding: 20px;
  /* Custom scrollbar for Webkit browsers */
  scrollbar-color: var(--border-dark) var(--window-background);
  /* Firefox */
}

/* Webkit Scrollbar */
body::-webkit-scrollbar {
  width: 16px;
  height: 16px;
}

body::-webkit-scrollbar-track {
  background: var(--window-background);
  border-top: 1px solid var(--border-dark);
  border-left: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-lightest);
  border-right: 1px solid var(--border-lightest);
}

body::-webkit-scrollbar-thumb {
  background: var(--button-face);
  border-top: 1px solid var(--border-lightest);
  border-left: 1px solid var(--border-lightest);
  border-bottom: 1px solid var(--border-dark);
  border-right: 1px solid var(--border-dark);
}

body::-webkit-scrollbar-corner {
  background: var(--button-face);
  border-top: 1px solid var(--border-dark);
  border-left: 1px solid var(--border-dark);
  border-bottom: 1px solid var(--border-lightest);
  border-right: 1px solid var(--border-lightest);
}


/* --- Window Styles --- */
.window {
  background: var(--window-background);
  border-top: 2px solid var(--border-lightest);
  border-left: 2px solid var(--border-lightest);
  border-right: 2px solid var(--border-dark);
  border-bottom: 2px solid var(--border-dark);
  box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.5);
  /* Crisper, larger shadow */
  padding: 2px;
  display: inline-block;
  min-width: 300px;
  position: relative;
  /* For potential future draggable/resizable */
}

.window.active .title-bar {
  background:
    /* 上に重ねるストライプ */
    repeating-linear-gradient(180deg,
      rgba(255, 255, 255, 0.3) 0,
      rgba(255, 255, 255, 0.3) 2.5px,
      rgba(255, 255, 255, 0) 2.5px,
      rgba(255, 255, 255, 0) 5px),
    /* 下の背景グラデーション */
    linear-gradient(to right, var(--active-title-bar-start), var(--active-title-bar-end));
  color: var(--active-title-text);
}

.window.inactive .title-bar {
  background:
    /* 上に重ねるストライプ */
    repeating-linear-gradient(180deg,
      rgba(255, 255, 255, 0.3) 0,
      rgba(255, 255, 255, 0.3) 2.5px,
      rgba(255, 255, 255, 0) 2.5px,
      rgba(255, 255, 255, 0) 5px),
    linear-gradient(to right, var(--inactive-title-bar-start), var(--inactive-title-bar-end));
  color: var(--inactive-title-text);
}

.title-bar {
  padding: 4px 6px;

  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-light);
  /* Inner highlight */
  border-left: 1px solid var(--border-light);
  /* Inner highlight */
  border-right: 1px solid var(--border-dark);
  /* Inner shadow */
  border-bottom: 1px solid var(--border-dark);
  /* Inner shadow */
  text-shadow: 1px 1px var(--border-darkest);
  /* Shadow for title text */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.title-bar-text {
  flex-grow: 1;
}

.title-bar-controls button {
  width: 20px;
  height: 20px;
  margin-left: 2px;
  font-weight: bold;
  line-height: 14px;
  background-color: var(--button-face);
  border-top: 2px solid var(--border-lightest);
  border-left: 2px solid var(--border-lightest);
  border-right: 2px solid var(--border-dark);
  border-bottom: 2px solid var(--border-dark);
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0;
  outline: none;
  flex-shrink: 0;
  /* Prevent buttons from shrinking */
}

.title-bar-controls button:active {
  border-top: 2px solid var(--border-dark);
  border-left: 2px solid var(--border-dark);
  border-right: 2px solid var(--border-lightest);
  border-bottom: 2px solid var(--border-lightest);
}

/* Specific icons for close, minimize, maximize - More accurate glyphs */
.title-bar-controls button[aria-label="Minimize"]::before {
  content: '▼';
}

.title-bar-controls button[aria-label="Maximize"]::before {
  content: '▲';
}

.title-bar-controls button[aria-label="Close"]::before {
  /* First line of X */
  content: '×';
}

.window-body {
  background: var(--button-face);
  padding: 15px;
  margin: 2px;
  border-top: 1px solid var(--border-dark);
  border-left: 1px solid var(--border-dark);
  border-right: 1px solid var(--border-lightest);
  border-bottom: 1px solid var(--border-lightest);
  overflow: auto;
}

/* .window-content class support */
.window-body {
  background: var(--button-face);
}


/* --- Button Styles --- */
button {
  background-color: var(--button-face);
  color: var(--button-text);
  border-top: 2px solid var(--border-lightest);
  border-left: 2px solid var(--border-lightest);
  border-right: 2px solid var(--border-dark);
  border-bottom: 2px solid var(--border-dark);
  padding: 4px 16px;
  text-align: center;
  min-width: 60px;
  cursor: pointer;
  outline: none;
  font-family: inherit;
  font-size: 14px;
  margin: 2px;
}

button:active,
button.active {
  border-top: 2px solid var(--border-dark);
  border-left: 2px solid var(--border-dark);
  border-right: 2px solid var(--border-lightest);
  border-bottom: 2px solid var(--border-lightest);
  padding: 5px 15px 3px 17px;
  /* Shift content slightly */
}

button:focus {
  outline: 1px dotted var(--focus-outline);
  outline-offset: -4px;
}

button.default {
  border-width: 4px;
  /* Thick border for default button */
  border-style: double;
  border-color: var(--border-dark) var(--border-lightest) var(--border-lightest) var(--border-dark);
  padding: 2px 14px;
}

button:disabled {
  color: var(--button-shadow);
  background-color: var(--window-background);
  border: 2px solid var(--border-light);
  cursor: not-allowed;
  text-shadow: 1px 1px var(--border-lightest);
}

/* .btn class support */
.btn:active {
  padding: 5px 15px 3px 17px;
}

/* --- Form Elements --- */
fieldset {
  border-top: 2px solid var(--border-dark);
  border-left: 2px solid var(--border-dark);
  border-right: 2px solid var(--border-lightest);
  border-bottom: 2px solid var(--border-lightest);
  padding: 15px;
  margin: 10px 0;
}

legend {
  padding: 0 5px;
  font-weight: bold;
}

input[type="text"] {
  background-color: var(--border-lightest);
  border-top: 2px solid var(--border-darkest);
  border-left: 2px solid var(--border-darkest);
  border-right: 2px solid var(--border-lightest);
  border-bottom: 2px solid var(--border-lightest);
  padding: 4px 6px;
  font-family: inherit;
  font-size: 14px;
  outline: none;
}

input[type="text"]:focus {
  outline: 1px dotted var(--focus-outline);
  outline-offset: -3px;
}

label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  margin-bottom: 5px;
}

input[type="checkbox"],
input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  width: 14px;
  height: 14px;
  background-color: var(--border-lightest);
  border-top: 2px solid var(--border-darkest);
  border-left: 2px solid var(--border-darkest);
  border-right: 2px solid var(--border-lightest);
  border-bottom: 2px solid var(--border-lightest);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
}

input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: -2px;
  left: 1px;
  font-size: 14px;
  font-weight: bold;
}

input[type="radio"] {
  border-radius: 50%;
}

input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  width: 6px;
  height: 6px;
  background-color: var(--button-text);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}


textarea.form-control {
  min-height: 80px;
}

/* --- Well Style --- */
.well {
  background: var(--button-face);
  padding: 10px;
  border-top: 2px solid var(--border-dark);
  /* Inset effect */
  border-left: 2px solid var(--border-dark);
  /* Inset effect */
  border-right: 2px solid var(--border-lightest);
  border-bottom: 2px solid var(--border-lightest);
  /* Inset effect */
}

/* --- Utility --- */
.text-center {
  text-align: center;
}

.mt-1 {
  margin-top: 10px;
}

.title-bar-controls {
  width: 100px;
  display: flex;
  flex-direction: row;
  /* 横並び */
  justify-content: flex-end;
  /* 右寄せ（SerenityOS風） */
  gap: 2px;
  /* ボタン間の隙間 */
}

.title-bar-text {
  display: inline-block;
  font-size: large;
  max-width: fit-content;
}

.window.active .title-bar-text {

  background: linear-gradient(to right, var(--active-title-bar-start), var(--active-title-bar-end));
}