/*
  Base UI tokens + reusable component classes
  Extracted from the current desktop workbench design language.
  Suitable for plain HTML + CSS projects.
*/

:root {
  color-scheme: light;

  /* colors */
  --bg: #f7f8f7;
  --page: #ffffff;
  --surface: #ffffff;
  --surface-2: #f2f5f3;
  --text: #151716;
  --muted: #66716c;
  --subtle: #909a95;
  --line: #dde4df;
  --line-strong: #cad5cf;
  --primary: #07c160;
  --primary-2: #10d978;
  --primary-soft: #e6f7ee;
  --primary-soft-2: #f1fbf6;
  --accent: #2d8cff;
  --warning: #fa8c16;
  --error: #f5222d;

  /* radii */
  --radius-window: 12px;
  --radius-panel: 18px;
  --radius-soft: 14px;
  --radius-input: 11px;
  --radius-pill: 999px;

  /* shadows */
  --shadow-panel: 0 24px 70px rgba(20, 36, 27, 0.1);
  --shadow-glass: 0 10px 28px rgba(20, 36, 27, 0.06);
  --shadow-primary: 0 10px 28px rgba(7, 193, 96, 0.22);
  --shadow-danger: 0 10px 28px rgba(245, 34, 45, 0.22);
  --shadow-fab: 0 18px 36px rgba(7, 193, 96, 0.28);

  /* spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;

  /* typography */
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #090d0b;
  --page: #0d1110;
  --surface: #121817;
  --surface-2: #18211e;
  --text: #f4f7f5;
  --muted: #aab5af;
  --subtle: #7f8c85;
  --line: #24302b;
  --line-strong: #34423c;
  --primary: #07c160;
  --primary-2: #0ed46e;
  --primary-soft: #0d2a1b;
  --primary-soft-2: #10251a;
  --accent: #2d8cff;
  --warning: #fa8c16;
  --error: #ff4d4f;
  --shadow-panel: 0 28px 80px rgba(0, 0, 0, 0.36);
  --shadow-glass: 0 10px 28px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  max-width: 100%;
  display: block;
}

.scrollbar-hidden {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.scrollbar-hidden::-webkit-scrollbar {
  display: none;
}

/* shell */
.app-window {
  min-height: 100vh;
  background:
    radial-gradient(circle at 16% 4%, rgba(7, 193, 96, 0.18), transparent 30%),
    radial-gradient(circle at 86% 2%, rgba(45, 140, 255, 0.16), transparent 26%),
    radial-gradient(circle at 50% 36%, rgba(7, 193, 96, 0.13), transparent 32%),
    linear-gradient(180deg, color-mix(in srgb, var(--page) 58%, transparent), color-mix(in srgb, var(--page) 76%, transparent) 72%);
}

.app-window.rounded {
  overflow: hidden;
  border-radius: var(--radius-window);
}

.page-body {
  position: relative;
  padding: 20px;
}

.page-center {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px;
}

.glass-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(10deg, color-mix(in srgb, var(--surface) 44%, transparent), color-mix(in srgb, var(--surface) 22%, transparent));
  backdrop-filter: blur(10px) saturate(1.35);
  -webkit-backdrop-filter: blur(28px) saturate(1.35);
  box-shadow: var(--shadow-glass);
}

.glass-bar .title {
  min-width: 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* panels */
.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: var(--surface);
  box-shadow: var(--shadow-panel);
}

.panel-lite {
  border-radius: var(--radius-panel);
  background: transparent;
}

.card-pad {
  padding: 16px;
}

.list-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow-panel);
}

.list-main {
  min-width: 0;
  flex: 1;
}

.list-main h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 800;
}

.list-main p {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--muted);
}

.list-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* buttons */
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-ghost,
.icon-action,
.icon-btn,
.fab {
  border: 0;
  outline: none;
  transition: 0.2s ease;
}

.btn-primary,
.btn-danger,
.btn-secondary {
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  background: #05964d;
}

.btn-secondary {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
}

.btn-secondary:hover {
  background: var(--surface-2);
}

.btn-danger {
  background: var(--error);
  color: #fff;
  font-weight: 800;
  box-shadow: var(--shadow-danger);
}

.btn-danger:hover {
  background: #cf1322;
}

.btn-ghost {
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.btn-ghost:hover {
  background: var(--surface-2);
  color: var(--text);
}

.icon-btn,
.icon-action {
  display: inline-grid;
  place-items: center;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
}

.icon-btn:hover {
  color: var(--text);
}

.icon-action {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.icon-action:hover {
  background: var(--surface-2);
  color: var(--primary);
}

.fab {
  position: fixed;
  right: 24px;
  bottom: 96px;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: #fff;
  font-size: 30px;
  line-height: 1;
  box-shadow: var(--shadow-fab);
}

.fab:hover {
  background: #05964d;
}

/* status + tags */
.status-pill,
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
}

.status-pill {
  min-height: 24px;
  padding: 0 10px;
  font-size: 11px;
  font-weight: 600;
}

.status-pill.success {
  color: var(--primary);
}

.status-pill.warning {
  color: var(--warning);
}

.status-pill.muted {
  color: var(--muted);
}

.tag {
  padding: 4px 12px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}

.tag.tone-green {
  border-color: #bfe8d1;
  background: #edf9f2;
  color: #2f8a57;
}

.tag.tone-orange {
  border-color: #f3d6a6;
  background: #fff7e8;
  color: #9a651b;
}

.tag.tone-purple {
  border-color: #dfd1f2;
  background: #f7f0ff;
  color: #7650a8;
}

html[data-theme="dark"] .tag.tone-green {
  border-color: #244735;
  background: #102119;
  color: #8bd6a8;
}

html[data-theme="dark"] .tag.tone-orange {
  border-color: #4b3720;
  background: #241a0e;
  color: #e5ba70;
}

html[data-theme="dark"] .tag.tone-purple {
  border-color: #3e3153;
  background: #1f182b;
  color: #c4a2ef;
}

.version.warning {
  color: var(--warning);
  font-size: 12px;
  font-weight: 700;
}

/* form controls */
.field {
  display: block;
}

.field > span {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 800;
  color: var(--muted);
}

.input-like,
.editor,
.select-like {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s ease;
}

.input-like,
.select-like {
  height: 42px;
  padding: 0 12px;
  border-radius: var(--radius-input);
  font-size: 13px;
  font-weight: 600;
}

.editor {
  min-height: 160px;
  padding: 10px;
  border-radius: 8px;
  resize: none;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  line-height: 1.7;
}

.input-like:focus,
.select-like:focus,
.editor:focus {
  border-color: var(--primary);
}

.action-row {
  display: flex;
  gap: 12px;
}

.action-row.two-col > * {
  flex: 1;
}

/* segmented */
.segmented-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.seg-item {
  flex-shrink: 0;
  padding: 6px 32px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
}

.seg-item:hover {
  background: var(--surface-2);
}

.seg-item.is-active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 24px rgba(7, 193, 96, 0.22);
}

/* switch */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-soft);
  background: var(--surface);
}

.mini-switch {
  position: relative;
  width: 48px;
  height: 28px;
  flex-shrink: 0;
  padding: 3px;
  border-radius: var(--radius-pill);
  background: var(--line-strong);
}

.mini-switch span {
  display: block;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-pill);
  background: #fff;
  transition: transform 0.2s ease;
}

.mini-switch.is-on {
  background: var(--primary);
}

.mini-switch.is-on span {
  transform: translateX(20px);
}

/* terminal */
.terminal {
  overflow: hidden;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background:
    radial-gradient(circle at 12% 0%, rgba(7, 193, 96, 0.08), transparent 30%),
    linear-gradient(145deg, #0b100d, #101814 52%, #090f0c);
  box-shadow: var(--shadow-panel);
  color: #d7ffe4;
}

.terminal h3 {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 800;
}

.terminal pre,
.terminal code,
.terminal .terminal-body {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  line-height: 1.7;
}

.terminal .line-info { color: #8ff0b3; }
.terminal .line-debug { color: #82c7ff; }
.terminal .line-think { color: #c9a7ff; }
.terminal .line-warning { color: #ffd166; }
.terminal .line-error { color: #ff6b7a; }

/* special visual modules */
.engine-sphere {
  position: relative;
  width: 190px;
  height: 190px;
  border-radius: var(--radius-pill);
  background:
    radial-gradient(circle at 32% 24%, rgba(255, 255, 255, 0.95), transparent 12%),
    radial-gradient(circle at 42% 36%, rgba(255, 255, 255, 0.38), transparent 20%),
    radial-gradient(circle at 62% 72%, rgba(0, 0, 0, 0.22), transparent 34%),
    linear-gradient(145deg, #10d978, #07c160 48%, #047a40);
  box-shadow:
    inset -22px -28px 54px rgba(0, 0, 0, 0.24),
    inset 18px 18px 40px rgba(255, 255, 255, 0.18),
    0 34px 80px rgba(7, 193, 96, 0.28);
  animation: floatSphere 4.8s ease-in-out infinite;
}

.engine-sphere::before,
.engine-sphere::after {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.24);
  transform: rotate(-24deg);
}

.engine-sphere::after {
  inset: 42px 18px;
  opacity: 0.68;
  transform: rotate(22deg);
}

@keyframes floatSphere {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
  50% { transform: translate3d(0, -12px, 0) rotate(8deg); }
}

/* page templates */
.home-page,
.list-page,
.settings-content,
.side-feed,
.tool-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 8px 24px;
  text-align: center;
}

.hero-center h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
}

.hero-center p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
}

.settings-layout {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  min-height: 100vh;
}

.settings-sidebar {
  padding: 12px;
  border-right: 1px solid var(--line);
  background: var(--surface-2);
}

.settings-nav-item {
  width: 100%;
  padding: 12px;
  border: 0;
  border-radius: 12px;
  text-align: left;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.settings-nav-item:hover {
  background: var(--surface);
}

.settings-nav-item.is-active {
  background: var(--primary-soft);
  color: var(--primary);
}

.workbench-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 400px);
}

.stage-panel,
.side-feed {
  min-height: 0;
}

.stage-box {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #000;
}

.tool-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  min-height: 100vh;
}

.tool-sidebar {
  padding: 16px;
  border-right: 1px solid var(--line);
  background: var(--surface);
}

.tool-stage {
  min-width: 0;
  padding: 24px;
  background: var(--surface-2);
}

.canvas-shell {
  min-height: calc(100vh - 48px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #000;
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.55);
}

.bottom-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 8px;
  border-top: 1px solid var(--line);
}

.bottom-tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.bottom-tab-item:hover {
  background: var(--surface-2);
}

.bottom-tab-item.is-active {
  color: var(--primary);
}

@media (max-width: 900px) {
  .workbench-grid,
  .tool-layout,
  .settings-layout {
    grid-template-columns: 1fr;
  }

  .page-center {
    padding: 20px;
  }
}

@media (max-width: 640px) {
  .engine-sphere {
    width: 154px;
    height: 154px;
  }

  .fab {
    right: 22px;
  }
}