/* === Win2000 Retro UI === */

:root {
  --btn-face: #C0C0C0;
  --btn-highlight: #FFFFFF;
  --btn-shadow: #808080;
  --btn-dark-shadow: #404040;
  --window-bg: #C0C0C0;
  --title-active: #000080;
  --title-inactive: #808080;
  --title-text: #FFFFFF;
  --input-bg: #FFFFFF;
  --input-text: #000000;
  --selected-bg: #000080;
  --selected-text: #FFFFFF;
  --desktop: #008080;
  --text: #000000;
  --border-dark: #404040;
  --border-mid: #808080;
  --border-light: #FFFFFF;
  --dialog-bg: #C0C0C0;
  --scrollbar-bg: #C0C0C0;
  --scrollbar-thumb: #C0C0C0;
  --disabled-text: #808080;
  font-family: "MS Sans Serif", Tahoma, SimSun, sans-serif;
  font-size: 13px;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: unset;
  zoom: 1.25;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important;
  box-shadow: none !important;
  outline: none;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  background: var(--desktop);
  color: var(--text);
  font-size: 11px;
}

button, input, textarea, select {
  font: inherit;
  font-size: 11px;
}

button { border: 0; }

/* ── Outset (raised) 3D border ────────────────────────── */
.outset {
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
}

/* ── Inset (sunken) 3D border ─────────────────────────── */
.inset {
  border: 2px solid;
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
}

/* ── Window frame ─────────────────────────────────────── */
.window {
  background: var(--window-bg);
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.window-title {
  height: 22px;
  background: linear-gradient(90deg, #000080, #1084d0);
  color: var(--title-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2px 0 4px;
  font-size: 11px;
  font-weight: bold;
  user-select: none;
  flex-shrink: 0;
}

.window-title span {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.window-title-btns {
  display: flex;
  gap: 2px;
}

.window-title-btns button {
  width: 19px;
  height: 17px;
  background: var(--btn-face);
  border: 1px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  font-size: 10px;
  line-height: 10px;
  cursor: pointer;
  padding: 0;
  color: #000;
  font-family: "MS Sans Serif", Tahoma, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

.window-title-btns button:active {
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  padding: 1px 0 0 0;
}

.window-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--window-bg);
  padding: 4px;
}

/* ── Shell layout ─────────────────────────────────────── */
.shell {
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 4px;
  gap: 4px;
}

/* ── Top bar (just a status strip, not a full window) ─── */
.topbar {
  height: 48px;
  background: var(--window-bg);
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px;
  flex-shrink: 0;
}

.eyebrow {
  display: none;
}

.topbar h1 {
  font-size: 13px;
  font-weight: bold;
  margin: 0;
  letter-spacing: 0;
}

.top-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}

.status {
  padding: 2px 6px;
  border: 1px solid;
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  background: var(--window-bg);
  color: #000;
  font-size: 11px;
}

.status.active {
  color: #000;
  background: #C0C0C0;
}

/* ── Main layout ──────────────────────────────────────── */
.layout {
  flex: 1;
  min-height: 0;
  height: calc(100vh - 56px);
  display: grid;
  grid-template-columns: 336px minmax(0, 1fr);
  gap: 4px;
  overflow: hidden;
}

/* ── Panel (sidebar window) ───────────────────────────── */
.panel {
  background: var(--window-bg);
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2px;
  font-weight: bold;
  font-size: 11px;
}

/* ── Card (section inside panel) ──────────────────────── */
.card {
  border: 1px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  padding: 6px;
  background: var(--window-bg);
  margin-bottom: 0;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  margin-bottom: 6px;
}

.section-title h2 {
  font-size: 12px;
  font-weight: bold;
  margin: 0;
}

/* ── Mode tabs ────────────────────────────────────────── */
.mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2px;
  padding: 2px;
  background: var(--window-bg);
}

.mode-tab {
  cursor: pointer;
  padding: 4px 6px;
  font-size: 11px;
  color: #000;
  background: var(--btn-face);
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  text-align: center;
  font-family: inherit;
}

.mode-tab:active,
.mode-tab.active {
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  background: var(--btn-face);
}

.notice {
  margin: 6px 0 0;
  color: #000;
  font-size: 11px;
  line-height: 1.5;
}

/* ── Form fields ──────────────────────────────────────── */
.field {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 6px;
  font-size: 11px;
  color: #000;
}

.field span {
  font-size: 11px;
  font-weight: normal;
  color: #000;
}

.field input[type="text"],
.field input[type="password"],
.field input[type="number"],
.field textarea,
.field select {
  width: 100%;
  border: 2px solid;
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  background: #FFFFFF;
  color: #000000;
  padding: 2px 4px;
  font-size: 11px;
  font-family: inherit;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  outline: 1px dotted #000;
  outline-offset: -4px;
}

.field select {
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background: #FFFFFF url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23000'/%3E%3C/svg%3E") no-repeat right 4px center;
  padding-right: 18px;
}

.field input[type="range"] {
  width: 100%;
  accent-color: #000080;
  background: var(--window-bg);
}

.range-val {
  font-size: 11px;
  color: #000;
}

.grid {
  display: grid;
  gap: 4px;
}

.grid.two {
  grid-template-columns: 1fr 1fr;
}

.row {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.row.compact {
  flex-wrap: nowrap;
}

/* ── Buttons ──────────────────────────────────────────── */
.small-btn,
.ghost-btn,
.primary-btn,
.danger-btn,
.icon-btn {
  cursor: pointer;
  padding: 3px 8px;
  font-size: 11px;
  color: #000;
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  background: var(--btn-face);
  font-family: inherit;
}

.small-btn {
  padding: 2px 6px;
}

.icon-btn {
  padding: 3px 6px;
}

.small-btn:active,
.ghost-btn:active,
.primary-btn:active,
.danger-btn:active,
.icon-btn:active,
.small-btn.pressed,
.ghost-btn.pressed,
.primary-btn.pressed {
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  padding: 4px 7px 2px 9px;
}

.primary-btn {
  font-weight: bold;
}

.danger-btn {
  color: #000;
}

button:disabled {
  color: var(--disabled-text);
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
}

button:disabled:active {
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  padding: 3px 8px;
}

.hint {
  font-weight: normal;
  color: var(--disabled-text);
  font-size: 10px;
}

/* ── Participants ─────────────────────────────────────── */
.participants {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.participant {
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 6px;
  padding: 5px 6px;
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  background: var(--btn-face);
  cursor: pointer;
  color: #000;
  font-family: inherit;
  font-size: 11px;
  text-align: left;
  width: 100%;
}

.participant:active {
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
}

.dot {
  width: 8px;
  height: 8px;
  margin-top: 2px;
  border: 1px solid #000;
}

.participant strong {
  display: block;
  margin-bottom: 2px;
  font-size: 11px;
}

.meta,
.caps,
.model-results {
  color: #000;
  font-size: 11px;
  line-height: 1.5;
}

.caps span {
  display: inline-block;
  margin: 2px 3px 0 0;
  padding: 1px 4px;
  border: 1px solid var(--btn-dark-shadow);
  background: #FFFFFF;
  color: #000;
  font-size: 10px;
}

/* ── Chat area ────────────────────────────────────────── */
.chat {
  min-width: 0;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  background: #FFFFFF;
}

.messages {
  flex: 1;
  overflow: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: #FFFFFF;
}

/* ── Classic scrollbar ────────────────────────────────── */
::-webkit-scrollbar {
  width: 19px;
  height: 19px;
  background: var(--scrollbar-bg);
}

::-webkit-scrollbar-track {
  background: var(--btn-face);
  border: 1px solid var(--btn-dark-shadow);
}

::-webkit-scrollbar-thumb {
  background: var(--btn-face);
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
}

::-webkit-scrollbar-button {
  display: block;
  width: 19px;
  height: 19px;
  background: var(--btn-face);
  border: 1px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
}

::-webkit-scrollbar-button:single-button:vertical:decrement {
  background: var(--btn-face) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='6'%3E%3Cpath d='M4 0l4 6H0z' fill='%23000'/%3E%3C/svg%3E") center no-repeat;
}

::-webkit-scrollbar-button:single-button:vertical:increment {
  background: var(--btn-face) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='6'%3E%3Cpath d='M0 0l4 6 4-6z' fill='%23000'/%3E%3C/svg%3E") center no-repeat;
}

::-webkit-scrollbar-button:single-button:horizontal:decrement {
  background: var(--btn-face) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='6' height='8'%3E%3Cpath d='M0 4l6-4v8z' fill='%23000'/%3E%3C/svg%3E") center no-repeat;
}

::-webkit-scrollbar-button:single-button:horizontal:increment {
  background: var(--btn-face) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='6' height='8'%3E%3Cpath d='M0 0l6 4-6 4z' fill='%23000'/%3E%3C/svg%3E") center no-repeat;
}

/* ── Welcome ──────────────────────────────────────────── */
.welcome {
  margin: auto;
  max-width: 480px;
  text-align: center;
  color: #000;
  background: var(--window-bg);
  border: 2px solid;
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  padding: 16px;
}

.logo-mark {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  display: grid;
  place-items: center;
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  background: var(--selected-bg);
  color: var(--selected-text);
  font-size: 22px;
  font-weight: 900;
}

.welcome h2 {
  font-size: 13px;
  font-weight: bold;
  color: #000;
  margin-bottom: 8px;
}

.welcome p {
  font-size: 11px;
  color: #000;
  margin-bottom: 12px;
}

/* ── Message bubbles ──────────────────────────────────── */
.message {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 6px;
  max-width: 860px;
}

.message.user {
  align-self: flex-end;
  grid-template-columns: minmax(0, 1fr) 38px;
}

.avatar {
  width: 38px;
  height: 38px;
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  background: var(--selected-bg);
  display: grid;
  place-items: center;
  font-weight: bold;
  color: var(--selected-text);
  font-size: 13px;
  font-family: inherit;
}

.message.user .avatar {
  grid-column: 2;
  grid-row: 1;
}

.bubble {
  border: 2px solid;
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  background: #FFFFFF;
  padding: 6px 8px;
  line-height: 1.6;
  word-break: break-word;
  color: #000;
  font-size: 11px;
}

.markdown-body {
  white-space: normal;
}

.markdown-body p {
  margin: 0 0 6px;
}

.markdown-body p:last-child {
  margin-bottom: 0;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin: 8px 0 4px;
  line-height: 1.3;
  color: #000;
  font-weight: bold;
}

.markdown-body h1 { font-size: 15px; }
.markdown-body h2 { font-size: 13px; }
.markdown-body h3 { font-size: 12px; }
.markdown-body h4, .markdown-body h5, .markdown-body h6 { font-size: 11px; }

.markdown-body ul,
.markdown-body ol {
  margin: 4px 0 8px;
  padding-left: 18px;
}

.markdown-body li {
  margin: 2px 0;
}

.markdown-body blockquote {
  margin: 6px 0;
  padding: 4px 8px;
  border-left: 3px solid #000080;
  background: #FFFFFF;
  color: #000;
}

.markdown-body code {
  padding: 1px 3px;
  border: 1px solid var(--btn-dark-shadow);
  background: #FFFFFF;
  color: #000;
  font-family: "Courier New", monospace;
  font-size: 11px;
}

.markdown-body pre {
  margin: 6px 0;
  padding: 6px;
  overflow: auto;
  border: 2px solid;
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  background: #FFFFFF;
}

.markdown-body pre code {
  padding: 0;
  border: 0;
  background: transparent;
  color: #000;
  white-space: pre;
}

.markdown-body a {
  color: #0000CC;
  text-decoration: underline;
}

.msg-head {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 4px;
  color: #000;
  font-size: 11px;
  font-weight: bold;
}

/* ── Round divider ────────────────────────────────────── */
.divider {
  text-align: center;
  color: #000;
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: bold;
}

.divider::before,
.divider::after {
  content: "";
  height: 1px;
  flex: 1;
  background: var(--btn-dark-shadow);
}

/* ── Error ────────────────────────────────────────────── */
.error {
  color: #000;
  background: #FFFFFF;
}

/* ── File preview ─────────────────────────────────────── */
.file-preview {
  border-top: 2px solid var(--btn-dark-shadow);
  padding: 4px 8px;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  background: var(--window-bg);
}

.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  border: 1px solid var(--btn-dark-shadow);
  background: #FFFFFF;
  color: #000;
  font-size: 11px;
}

.file-chip button {
  padding: 0 2px;
  background: transparent;
  color: #000;
  cursor: pointer;
  border: 0;
  font-weight: bold;
}

.hidden {
  display: none !important;
}

/* ── Composer ─────────────────────────────────────────── */
.composer {
  flex-shrink: 0;
  border-top: 2px solid var(--btn-dark-shadow);
  display: flex;
  gap: 4px;
  padding: 4px 6px;
  background: var(--window-bg);
}

.composer input[type="text"] {
  flex: 1;
  min-width: 0;
  border: 2px solid;
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
  background: #FFFFFF;
  color: #000;
  padding: 0 6px;
  font-size: 11px;
  font-family: inherit;
  height: 30px;
}

.composer input[type="text"]:focus {
  outline: 1px dotted #000;
  outline-offset: -4px;
}

.composer input[type="text"]:disabled {
  color: var(--disabled-text);
  background: var(--btn-face);
}

.composer .primary-btn {
  padding: 3px 16px;
  height: 30px;
}

.composer .icon-btn {
  height: 30px;
  width: 34px;
}

/* ── Dialog ───────────────────────────────────────────── */
.dialog {
  width: min(560px, calc(100vw - 16px));
  border: 2px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  padding: 0;
  background: var(--dialog-bg);
  color: #000;
  font-size: 11px;
  font-family: inherit;
}

.dialog::backdrop {
  background: rgba(0, 0, 0, 0.4);
}

.dialog-body {
  padding: 0;
}

.dialog-head {
  height: 22px;
  background: linear-gradient(90deg, #000080, #1084d0);
  color: var(--title-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2px 0 4px;
  font-size: 11px;
  font-weight: bold;
  user-select: none;
}

.dialog-head h2 {
  margin: 0;
  font-size: 11px;
  font-weight: bold;
  color: #FFFFFF;
}

.dialog-head .icon-btn {
  width: 19px;
  height: 17px;
  min-width: 19px;
  line-height: 10px;
  padding: 0;
  font-size: 10px;
  border: 1px solid;
  border-color: var(--btn-highlight) var(--btn-dark-shadow) var(--btn-dark-shadow) var(--btn-highlight);
  background: var(--btn-face);
  color: #000;
  cursor: pointer;
}

.dialog-head .icon-btn:active {
  border-color: var(--btn-dark-shadow) var(--btn-highlight) var(--btn-highlight) var(--btn-dark-shadow);
}

.dialog-body > :not(.dialog-head) {
  padding: 6px;
}

.dialog-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
}

.spacer {
  flex: 1;
}

.check {
  display: flex;
  align-items: center;
  gap: 4px;
  color: #000;
  margin-top: 0;
  font-size: 11px;
}

.check input[type="checkbox"] {
  width: 13px;
  height: 13px;
  margin: 0;
  accent-color: #000080;
}

.judge-toggle {
  gap: 6px !important;
}

/* ── Panel overlay (mobile) ──────────────────────────── */
.panel-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.35);
  z-index: 39; display: none;
}

/* ── Model results ────────────────────────────────────── */
.model-results {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 200px;
  overflow: auto;
  margin-top: 4px;
}

.model-row {
  display: block;
  width: 100%;
  text-align: left;
  padding: 3px 6px;
  font-size: 11px;
  border: 1px solid var(--btn-dark-shadow);
  background: #FFFFFF;
  cursor: pointer;
  color: #000;
}

.model-row:hover {
  background: var(--selected-bg);
  color: var(--selected-text);
}

/* ── Actions card ─────────────────────────────────────── */
.actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.actions .primary-btn,
.actions .danger-btn,
.actions .ghost-btn {
  width: 100%;
  padding: 5px 8px;
}

/* ── Mobile ───────────────────────────────────────────── */
.mobile-only {
  display: none;
}

@media (max-width: 688px) {
  .layout {
    display: block;
    grid-template-columns: none;
  }

  .panel {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(90vw, 336px);
    transform: translateX(-105%);
    transition: transform .15s ease;
    z-index: 40;
  }

  .panel.open {
    transform: translateX(0);
  }

  .panel-overlay { display: none; }
  .panel-overlay.show { display: block; }

  .mobile-only {
    display: inline-flex;
  }

  .panel-head {
    justify-content: space-between;
    margin-bottom: 8px;
  }

  .top-actions .ghost-btn {
    display: none;
  }

  .chat {
    max-height: calc(100vh - 56px);
  }

  .messages {
    padding: 6px;
  }

  .message {
    max-width: 100%;
  }

  .grid.two {
    grid-template-columns: 1fr;
  }
}