/* ==================== RETRO 2001 OS THEME ==================== */
/* All colors driven by CSS custom properties for theme switching  */

/* --- Theme Definitions --- */
body, body[data-theme="standard"] {
  --desktop-bg: #008080;
  --title-start: #0a246a;
  --title-mid: #3a6ea5;
  --title-main: #0054e3;
  --title-end: #3a6ea5;
  --title-text: #fff;
  --window-bg: #ece9d8;
  --button-face: #ece9d8;
  --border-light: #fff;
  --border-dark: #808080;
  --border-outline: #000;
  --input-bg: #fff;
  --text: #000;
  --text-muted: #808080;
  --highlight: #0054e3;
  --highlight-text: #fff;
  --highlight-muted: #cce0ff;
  --field-bg: #d4d0c8;
  --scrollbar-bg: #ece9d8;
  --scrollbar-thumb: #c0c0c0;
}

body[data-theme="brick"] {
  --desktop-bg: #6e3a19;
  --title-start: #6e3a19;
  --title-mid: #8b5a3c;
  --title-main: #7b4a2e;
  --title-end: #6e3a19;
  --window-bg: #e4d8cc;
  --button-face: #e4d8cc;
  --field-bg: #d4c4b4;
  --highlight: #7b4a2e;
  --highlight-muted: #e8d0c0;
  --scrollbar-bg: #e4d8cc;
  --scrollbar-thumb: #c4a888;
}

body[data-theme="desert"] {
  --desktop-bg: #c4a875;
  --title-start: #8b7340;
  --title-mid: #a89060;
  --title-main: #9a8050;
  --title-end: #8b7340;
  --window-bg: #ece4d0;
  --button-face: #ece4d0;
  --field-bg: #dcd0b8;
  --highlight: #9a8050;
  --highlight-muted: #e8dcc0;
  --scrollbar-bg: #ece4d0;
  --scrollbar-thumb: #c4b48c;
}

body[data-theme="eggplant"] {
  --desktop-bg: #40406a;
  --title-start: #40306a;
  --title-mid: #6a50a0;
  --title-main: #554080;
  --title-end: #40306a;
  --window-bg: #dcd4e4;
  --button-face: #dcd4e4;
  --field-bg: #ccc4d8;
  --highlight: #554080;
  --highlight-muted: #d8c8f0;
  --scrollbar-bg: #dcd4e4;
  --scrollbar-thumb: #b0a4c0;
}

body[data-theme="rose"] {
  --desktop-bg: #b07070;
  --title-start: #7a4060;
  --title-mid: #a06878;
  --title-main: #8a506a;
  --title-end: #7a4060;
  --window-bg: #e8d8dc;
  --button-face: #e8d8dc;
  --field-bg: #d8c8cc;
  --highlight: #8a506a;
  --highlight-muted: #e8c8d8;
  --scrollbar-bg: #e8d8dc;
  --scrollbar-thumb: #c4a8b0;
}

body[data-theme="spruce"] {
  --desktop-bg: #2a5a2a;
  --title-start: #1a4a1a;
  --title-mid: #3a7a3a;
  --title-main: #2a6a2a;
  --title-end: #1a4a1a;
  --window-bg: #d4dcd0;
  --button-face: #d4dcd0;
  --field-bg: #c0ccbc;
  --highlight: #2a6a2a;
  --highlight-muted: #b8d8b8;
  --scrollbar-bg: #d4dcd0;
  --scrollbar-thumb: #a0b8a0;
}

body[data-theme="storm"] {
  --desktop-bg: #3a3a80;
  --title-start: #1a1a60;
  --title-mid: #4a4aa0;
  --title-main: #2a2a80;
  --title-end: #1a1a60;
  --window-bg: #d4d4e0;
  --button-face: #d4d4e0;
  --field-bg: #c0c0d4;
  --highlight: #2a2a80;
  --highlight-muted: #c0c0e8;
  --scrollbar-bg: #d4d4e0;
  --scrollbar-thumb: #a0a0c0;
}

body[data-theme="rainy-day"] {
  --desktop-bg: #4e4e56;
  --title-start: #2a2a36;
  --title-mid: #5a5a66;
  --title-main: #404050;
  --title-end: #2a2a36;
  --window-bg: #d4d4d4;
  --button-face: #d4d4d4;
  --field-bg: #c0c0c0;
  --highlight: #404050;
  --highlight-muted: #c0c0cc;
  --scrollbar-bg: #d4d4d4;
  --scrollbar-thumb: #a0a0a0;
}

/* --- Base / Reset --- */
* {
  box-sizing: border-box;
  border-radius: 0 !important;
}

body {
  font-family: "MS Sans Serif", "Tahoma", "Arial", sans-serif;
  font-size: 13px;
  margin: 0;
  padding: 0;
  background: var(--desktop-bg);
  color: var(--text);
  -webkit-font-smoothing: none;
}

::selection {
  background: var(--highlight);
  color: var(--highlight-text);
}

/* --- Desktop --- */
#desktop {
  min-height: 100vh;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

/* --- Window --- */
.window {
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  background: var(--window-bg);
  box-shadow: 1px 1px 0 var(--border-outline, #000);
  width: 100%;
  max-width: 1100px;
  display: flex;
  flex-direction: column;
}

/* --- Title Bar --- */
.title-bar {
  background: linear-gradient(180deg, var(--title-start) 0%, var(--title-mid) 8%, var(--title-main) 30%, var(--title-main) 90%, var(--title-end) 100%);
  padding: 4px 8px;
  display: flex;
  align-items: center;
  user-select: none;
  min-height: 26px;
}

.title-bar-text {
  color: var(--title-text);
  font-weight: bold;
  font-size: 13px;
  text-shadow: 1px 1px 1px rgba(0,0,0,0.4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- Window Body --- */
.window-body {
  padding: 8px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 8px;
  background: var(--window-bg);
}

@media (max-width: 800px) {
  .window-body {
    grid-template-columns: 1fr;
  }
}

.window-body-single {
  padding: 8px;
  background: var(--window-bg);
}

/* --- Status Bar --- */
.status-bar {
  background: var(--window-bg);
  border-top: 1px solid var(--border-dark);
  padding: 2px 6px;
  font-size: 12px;
  display: flex;
  gap: 8px;
}

.status-bar-field {
  border: 1px solid;
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
  padding: 1px 6px;
  flex: 1;
}

/* --- Group Box (fieldset) --- */
.group-box {
  border: 1px solid var(--border-dark);
  padding: 8px;
  margin: 0 0 8px 0;
  background: var(--window-bg);
}

.group-box legend,
.group-box-title {
  font-weight: bold;
  font-size: 13px;
  color: var(--text);
  padding: 0 4px;
}

/* --- Sunken Panel --- */
.sunken-panel {
  border: 2px solid;
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
  background: var(--input-bg);
  padding: 8px;
}

/* --- Form Controls --- */
label {
  font-size: 13px;
  font-weight: normal;
  color: var(--text);
  display: block;
  margin-bottom: 2px;
}

input[type="text"],
input[type="number"],
textarea,
select {
  font-family: "MS Sans Serif", "Tahoma", "Arial", sans-serif;
  font-size: 13px;
  border: 2px solid;
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
  background: var(--input-bg);
  color: var(--text);
  padding: 3px 4px;
  outline: none;
  width: 100%;
}

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

textarea {
  resize: vertical;
}

select {
  appearance: auto;
  cursor: pointer;
}

/* --- Buttons --- */
button, .retro-btn {
  font-family: "MS Sans Serif", "Tahoma", "Arial", sans-serif;
  font-size: 13px;
  background: var(--button-face);
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  padding: 4px 12px;
  cursor: pointer;
  color: var(--text);
  min-height: 23px;
}

button:active, .retro-btn:active {
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
  padding: 5px 11px 3px 13px;
}

button:disabled {
  color: var(--text-muted);
  cursor: default;
}

button:disabled:active {
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  padding: 4px 12px;
}

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

/* Primary button (Generate) */
.btn-primary {
  background: var(--button-face);
  font-weight: bold;
  border: 3px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  padding: 6px 16px;
  outline: 1px solid var(--text);
  outline-offset: -4px;
}

.btn-primary:active {
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
}

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

/* --- Custom Scrollbar (XP-style chunky) --- */
::-webkit-scrollbar { width: 16px; height: 16px; }
::-webkit-scrollbar-track { background: var(--scrollbar-bg); border: 1px solid var(--border-dark); }
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
}
::-webkit-scrollbar-thumb:hover { background: var(--field-bg); }
::-webkit-scrollbar-button {
  background: var(--button-face);
  border: 1px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  display: block;
  height: 16px;
  width: 16px;
}

/* --- Spacing helpers --- */
.field-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.field-row-stacked {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 8px;
}

.field-row-stacked label {
  margin-bottom: 0;
}

.field-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* --- Animations --- */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.animate-spin { animation: spin 1s linear infinite; }

/* --- Slogan Card --- */
.slogan-card {
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  background: var(--button-face);
  padding: 8px;
  cursor: pointer;
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-bottom: 4px;
}

.slogan-card[data-selected="false"]:hover {
  background: var(--field-bg);
}

.slogan-card[data-selected="true"] {
  background: var(--highlight);
  color: var(--highlight-text);
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
}

.slogan-card[data-selected="true"] .slogan-textarea {
  color: var(--highlight-text);
}

.slogan-card[data-selected="true"] .slogan-explanation {
  color: var(--highlight-muted);
}

.slogan-card[data-selected="true"] .copy-slogan-btn {
  color: var(--highlight-muted);
}

.slogan-card[data-selected="true"] .copy-slogan-btn:hover {
  color: var(--highlight-text);
}

/* --- Slogan Textarea --- */
.slogan-textarea {
  width: 100%;
  background: transparent;
  border: none;
  resize: none;
  overflow: hidden;
  outline: none;
  padding: 0;
  font-size: 14px;
  font-weight: bold;
  color: var(--text);
  line-height: 1.4;
  font-family: "MS Sans Serif", "Tahoma", "Arial", sans-serif;
}

/* --- Image Card --- */
.img-card {
  position: relative;
  overflow: hidden;
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  background: var(--button-face);
  padding: 4px;
}

.img-card img {
  width: 100%;
  height: auto;
  display: block;
}

.img-card .img-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  opacity: 0;
  transition: opacity 0.2s;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 12px;
}

.img-card:hover .img-overlay { opacity: 1; }

.img-overlay p {
  color: #fff;
  font-weight: bold;
  font-size: 13px;
  margin: 0 0 8px 0;
}

.img-overlay a {
  color: #fff;
  background: var(--highlight);
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  padding: 4px 8px;
  text-decoration: none;
  font-size: 12px;
  font-weight: bold;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  width: fit-content;
}

/* --- Reference Subject Cards --- */
.ref-subject-card {
  position: relative;
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  background: var(--field-bg);
  padding: 8px;
  margin-bottom: 6px;
}

.ref-subject-card .remove-subject-btn {
  opacity: 0;
  transition: opacity 0.15s;
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--button-face);
  border: 1px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  padding: 2px 4px;
  color: var(--text);
  min-height: unset;
}

.ref-subject-card:hover .remove-subject-btn { opacity: 1; }

.ref-img-wrapper {
  position: relative;
  overflow: hidden;
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-dark);
  display: inline-block;
}

.ref-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ref-img-wrapper .remove-img-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s;
}

.ref-img-wrapper:hover .remove-img-overlay { opacity: 1; }

/* --- Aspect Ratio Toggle --- */
.aspect-ratio-group {
  display: flex;
  gap: 0;
}

.aspect-ratio-btn {
  flex: 1;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: bold;
  text-align: center;
  background: var(--button-face);
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  cursor: pointer;
  color: var(--text);
}

.aspect-ratio-btn.active {
  background: var(--highlight);
  color: var(--highlight-text);
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
}

/* --- Error Bar --- */
.error-bar {
  background: #ffffe1;
  border: 1px solid var(--border-dark);
  padding: 4px 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text);
  margin-bottom: 8px;
}

.error-bar svg { color: #c00; flex-shrink: 0; }

/* --- Keyword Chips --- */
.keyword-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--input-bg);
  border: 1px solid var(--border-dark);
  padding: 2px 6px 2px 8px;
  font-size: 12px;
  margin: 2px;
}

.keyword-chip button {
  background: none;
  border: none;
  padding: 0 2px;
  font-size: 14px;
  cursor: pointer;
  color: var(--text-muted);
  min-height: unset;
}

.keyword-chip button:hover {
  color: #c00;
}

.keyword-chip button:active {
  padding: 0 2px;
}

/* --- Empty State --- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  text-align: center;
  padding: 32px;
  border: 2px solid;
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
  background: var(--input-bg);
}

.empty-state-icon {
  font-size: 48px;
  line-height: 1;
  margin-bottom: 12px;
  color: var(--text-muted);
}

.empty-state h3 {
  font-size: 16px;
  font-weight: bold;
  margin: 0 0 8px 0;
}

.empty-state p {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 320px;
  margin: 0;
}

/* --- Section Header --- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.section-header h2 {
  font-size: 14px;
  font-weight: bold;
  margin: 0;
}

.selected-badge {
  background: var(--highlight);
  color: var(--highlight-text);
  font-size: 11px;
  font-weight: bold;
  padding: 2px 8px;
}

/* --- Image Grid --- */
.image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

@media (max-width: 600px) {
  .image-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Visual Studio Section --- */
.vs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 600px) {
  .vs-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Spinner (in-button) --- */
.btn-spinner {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-spinner svg {
  width: 14px;
  height: 14px;
}

/* --- Hidden utility --- */
.hidden { display: none !important; }

/* --- Magic (auto-enhance) button --- */
.magic-btn {
  position: absolute;
  right: 4px;
  bottom: 4px;
  background: var(--button-face);
  border: 1px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  padding: 3px 5px;
  cursor: pointer;
  color: var(--text);
  min-height: unset;
}

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

/* --- File upload label as button --- */
.upload-btn-label {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--button-face);
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  cursor: pointer;
  color: var(--text);
  font-size: 18px;
  font-weight: bold;
}

.upload-btn-label:hover {
  background: var(--field-bg);
}

/* --- No-subjects placeholder --- */
.no-subjects {
  height: 64px;
  border: 2px solid;
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
  background: var(--input-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 12px;
}

/* ==================== THEME PICKER ==================== */
#theme-picker {
  position: fixed;
  bottom: 10px;
  right: 10px;
  z-index: 100;
}

#theme-toggle {
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--button-face);
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  cursor: pointer;
}

#theme-toggle svg {
  width: 18px;
  height: 18px;
}

#theme-popup {
  position: absolute;
  bottom: 38px;
  right: 0;
  background: var(--window-bg);
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  box-shadow: 2px 2px 0 rgba(0,0,0,0.3);
  padding: 4px;
  width: 170px;
}

#theme-popup .popup-title {
  background: linear-gradient(180deg, var(--title-start) 0%, var(--title-main) 100%);
  color: var(--title-text);
  font-weight: bold;
  font-size: 12px;
  padding: 2px 6px;
  margin-bottom: 4px;
  text-shadow: 1px 1px 1px rgba(0,0,0,0.3);
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 6px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text);
}

.theme-option:hover {
  background: var(--highlight);
  color: var(--highlight-text);
}

.theme-option.active {
  font-weight: bold;
}

.theme-swatch {
  width: 16px;
  height: 16px;
  border: 1px solid var(--border-dark);
  flex-shrink: 0;
}

/* --- Image Card Overlay & Edit Button --- */
.img-card {
  position: relative;
  border: 2px solid;
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
  background: var(--input-bg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.img-card img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.img-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px;
  text-align: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.img-card:hover .img-overlay {
  opacity: 1;
}

.img-overlay p {
  font-size: 12px;
  margin-bottom: 12px;
  line-height: 1.4;
}

.btn-icon {
  background: var(--button-face);
  border: 2px solid;
  border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
  color: var(--text);
  padding: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  min-height: unset;
}

.btn-icon:hover {
  background: var(--field-bg);
}

.btn-icon:active {
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
}

.edit-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  border: 2px solid;
  border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
  min-height: 200px;
}