:root {
  color-scheme: dark;
  --page-bg: #121212;
  --panel-bg: #1a1a1a;
  --panel-bg-deep: #0f0f0f;
  --field-bg: #1c1c1c;
  --border: #333;
  --border-strong: #444;
  --text: #e0e0e0;
  --muted: #9aa0a6;
  --green: #00ff00;
  --green-dim: #0ea86b;
  --cyan: #00ffcc;
  --warning: #ffdc7d;
  --error: #ff6b6b;
  --radius: 8px;
  --font-mono: Menlo, "Courier New", Courier, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

html,
body {
  width: 100%;
  min-width: 320px;
  height: 100%;
  min-height: 100%;
  background: var(--page-bg);
  color: var(--text);
  font-family: var(--font-mono);
  letter-spacing: 0;
}

body {
  overflow: hidden;
}

button,
select,
textarea {
  font: inherit;
}

button,
select {
  min-height: 32px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
  color: var(--green);
}

button {
  padding: 0 11px;
  cursor: pointer;
  white-space: nowrap;
}

button:hover:not(:disabled),
select:hover:not(:disabled) {
  background: #333;
  box-shadow: 0 0 6px #00ff0044;
}

button:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 5px #00ffcc44;
}

button:disabled,
select:disabled {
  cursor: default;
  opacity: 0.48;
}

button.primary {
  color: #b8ffb8;
  border-color: #2b2b2b;
  background: linear-gradient(135deg, #26332a, #151a17);
  box-shadow: 0 6px 18px rgba(0, 255, 153, 0.08), inset 0 0 8px rgba(0, 0, 0, 0.5);
}

select {
  min-width: 150px;
  padding: 0 34px 0 10px;
  color: #d8ffd8;
}

.app-shell {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  padding: max(6px, env(safe-area-inset-top)) max(6px, env(safe-area-inset-right))
    max(6px, env(safe-area-inset-bottom)) max(6px, env(safe-area-inset-left));
  gap: 6px;
}

.compatibility-banner {
  padding: 12px 14px;
  border: 1px solid #5c4630;
  border-radius: var(--radius);
  background: #18130c;
  color: #f4ddb2;
  line-height: 1.45;
}

.compatibility-banner h2 {
  margin-bottom: 4px;
  color: var(--warning);
  font-size: 1rem;
}

.tool-card {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  gap: 6px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  flex-shrink: 0;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--panel-bg), var(--panel-bg-deep));
  box-shadow: inset 0 0 5px #000;
}

.toolbar-brand {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 32px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid #2f3a2fa0;
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--panel-bg), var(--panel-bg-deep));
  color: var(--green);
  font-weight: 900;
  font-size: 0.86rem;
  text-decoration: none;
  box-shadow: inset 0 0 10px #00ff9910;
}

.tool-home-link {
  color: var(--text);
  text-decoration: none;
}

.tool-home-link:hover,
.tool-home-link:focus-visible,
.brand-mark:focus-visible {
  color: var(--green);
}

.toolbar-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
}

.help-icon-button {
  display: inline-grid;
  width: 26px;
  min-width: 26px;
  height: 26px;
  min-height: 26px;
  flex: 0 0 26px;
  padding: 0;
  place-items: center;
  border: 1px solid #2f4d48;
  border-radius: 50%;
  background: #101817;
  color: var(--cyan);
  box-shadow: inset 0 0 8px rgba(0, 255, 204, 0.08);
}

.help-icon-button svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.help-icon-button:hover:not(:disabled),
.help-icon-button:focus-visible {
  border-color: var(--cyan);
  color: #e8fff8;
  background: #13201e;
  box-shadow: 0 0 8px rgba(0, 255, 204, 0.16), inset 0 0 8px rgba(0, 255, 204, 0.1);
}

.status-pill {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1;
}

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

.status-pill.is-ready {
  color: var(--green);
}

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

.workspace {
  display: grid;
  grid-template-columns: minmax(360px, 1.85fr) 6px minmax(360px, 1fr);
  flex: 1 1 auto;
  min-height: 0;
  gap: 6px;
}

.split-divider {
  display: block;
  min-width: 6px;
  min-height: 0;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: linear-gradient(180deg, transparent, rgba(0, 255, 204, 0.16), transparent);
  cursor: col-resize;
  touch-action: none;
}

.split-divider::before {
  content: "";
  display: block;
  width: 2px;
  height: 44px;
  max-height: calc(100% - 24px);
  margin: 12px auto;
  border-radius: 999px;
  background: rgba(0, 255, 204, 0.32);
}

.split-divider:hover,
.split-divider:focus-visible,
body.is-resizing-split .split-divider {
  border-color: rgba(0, 255, 204, 0.24);
  background: rgba(0, 255, 204, 0.08);
  outline: none;
}

body.is-resizing-split {
  cursor: col-resize;
  user-select: none;
}

.editor-panel,
.output-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--panel-bg), var(--panel-bg-deep));
  box-shadow: inset 0 0 5px #000;
  overflow: hidden;
}

.editor-panel {
  position: relative;
  container-type: inline-size;
}

.output-panel {
  container-type: inline-size;
}

.panel-header {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 42px;
  padding: 6px 8px 6px 10px;
  border-bottom: 1px solid var(--border);
}

.panel-header h2 {
  color: var(--green-dim);
  font-size: 0.92rem;
  line-height: 1.2;
}

.panel-actions {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  flex: 1 1 auto;
  justify-content: flex-end;
  gap: 8px;
  min-width: 0;
}

.code-file-actions,
.code-run-actions {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.code-file-actions {
  flex: 0 1 430px;
  justify-content: flex-end;
  min-width: 0;
}

.code-file-actions #exampleSelect {
  flex: 1 1 180px;
  width: auto;
  min-width: 108px;
  max-width: 260px;
  text-overflow: ellipsis;
}

@container (max-width: 760px) {
  .editor-panel .panel-header h2 {
    display: none;
  }

  .editor-panel .panel-actions {
    justify-content: flex-start;
  }

  .editor-panel .code-file-actions {
    flex: 1 1 420px;
    justify-content: flex-start;
  }

  .editor-panel .code-file-actions #exampleSelect {
    max-width: none;
  }
}

@container (max-width: 460px) {
  .output-panel .panel-header h2 {
    display: none;
  }
}

.code-run-actions {
  flex: 0 0 auto;
  margin-left: 10px;
  padding-left: 14px;
  border-left: 1px solid var(--border);
}

@container (max-width: 680px) {
  .editor-panel .panel-header {
    align-items: stretch;
  }

  .editor-panel .panel-actions {
    flex: 1 1 100%;
    justify-content: stretch;
  }

  .editor-panel .code-file-actions {
    flex: 1 1 100%;
    justify-content: stretch;
  }

  .editor-panel .code-file-actions #exampleSelect {
    flex: 1 1 120px;
    width: auto;
    min-width: 88px;
    max-width: none;
  }

  .editor-panel #importCodeButton,
  .editor-panel #saveCodeButton {
    flex: 0 0 78px;
  }

  .editor-panel .code-run-actions {
    flex: 1 1 100%;
    margin-left: 0;
    padding-left: 0;
    border-left: 0;
  }

  .editor-panel .code-run-actions button {
    flex: 1 1 112px;
    justify-content: center;
  }
}

@container (max-width: 560px) {
  .editor-panel .code-file-actions #exampleSelect {
    flex: 1 1 100%;
    width: 100%;
  }

  .editor-panel #importCodeButton,
  .editor-panel #saveCodeButton {
    flex: 1 1 112px;
  }
}

@container (max-width: 430px) {
  .editor-panel .code-run-actions button {
    flex: 1 1 52px;
    min-width: 52px;
    padding: 0 10px;
  }

  .editor-panel .code-run-actions .button-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }
}

.run-button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-width: 96px;
  border-color: #00ff6699;
  color: #0b140f;
  background: linear-gradient(135deg, #00ff99, #8cffb2);
  font-weight: 900;
  box-shadow: 0 0 16px rgba(0, 255, 153, 0.16), inset 0 0 6px rgba(255, 255, 255, 0.18);
}

.run-button svg,
#stopButton svg {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  fill: currentColor;
}

#stopButton svg {
  stroke: currentColor;
  stroke-width: 1.5;
}

.run-button:hover:not(:disabled) {
  background: linear-gradient(135deg, #49ffb8, #b8ffd0);
  box-shadow: 0 0 18px rgba(0, 255, 153, 0.26);
}

#importCodeButton,
#saveCodeButton {
  min-width: 78px;
}

#stopButton {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border-color: rgba(255, 107, 107, 0.58);
  color: #ffb8b8;
  background: linear-gradient(145deg, #2a1717, #181010);
}

#stopButton:hover:not(:disabled) {
  background: #3a1d1d;
  box-shadow: 0 0 8px rgba(255, 107, 107, 0.22);
}

.raw-toggle {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  gap: 7px;
  padding: 0 9px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: #121712;
  color: var(--muted);
  font-size: 0.78rem;
  white-space: nowrap;
}

.raw-toggle input {
  width: 14px;
  height: 14px;
  accent-color: var(--green-dim);
}

.editor-surface,
.fallback-editor {
  flex: 1 1 auto;
  width: 100%;
  height: auto;
  min-height: 0;
}

.editor-surface {
  display: grid;
  place-items: stretch;
  background: #101412;
}

.fallback-editor {
  display: none;
  padding: 12px;
  flex: 1 1 auto;
  resize: none;
  border: 0;
  background: #101412;
  color: #e6f4ea;
  line-height: 1.45;
  tab-size: 4;
}

.editor-surface.is-ready {
  display: block;
  padding-top: 6px;
}

.editor-surface.is-fallback {
  display: none;
}

.editor-surface.is-ready + .fallback-editor {
  display: none;
}

.editor-surface.is-fallback + .fallback-editor {
  display: block;
}

.editor-loading {
  display: grid;
  min-height: 100%;
  place-items: center;
  gap: 10px;
  align-content: center;
  color: var(--cyan);
  font-size: 0.9rem;
}

.loading-dot {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(0, 255, 204, 0.22);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: editor-loading-spin 0.9s linear infinite;
}

@keyframes editor-loading-spin {
  to {
    transform: rotate(360deg);
  }
}

.terminal-surface {
  flex: 1 1 auto;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  padding: 8px;
  overflow: hidden;
}

.terminal-surface .xterm {
  height: 100%;
}

.terminal-surface .xterm-viewport {
  scrollbar-width: thin;
}

.generated-files {
  flex: 0 0 auto;
  max-height: 132px;
  margin: 8px 8px 0;
  padding: 8px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #101712;
}

.generated-files-title {
  margin-bottom: 6px;
  color: var(--green-dim);
  font-size: 0.78rem;
  font-weight: 700;
}

.generated-files-list {
  display: grid;
  gap: 6px;
}

.generated-file {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 8px;
  min-height: 32px;
}

.generated-file-name {
  min-width: 0;
  overflow: hidden;
  color: var(--text);
  font-size: 0.78rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.generated-file-meta {
  color: var(--muted);
  font-size: 0.72rem;
  white-space: nowrap;
}

.generated-file button {
  min-height: 28px;
  padding: 0 8px;
  font-size: 0.74rem;
}

.tool-help-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: grayscale(0.55) brightness(0.68) blur(2px);
}

.tool-help-modal {
  position: relative;
  width: min(760px, 100%);
  max-height: min(82vh, 760px);
  overflow: auto;
  padding: 0;
  border: 1px solid #2d5b51;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #18211f 0, #111615 72px, #0f1211 100%);
  color: var(--text);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.68), inset 0 1px 0 rgba(216, 255, 242, 0.06);
}

.tool-help-modal:focus {
  outline: 2px solid #00ffcc88;
  outline-offset: 3px;
}

.tool-help-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: inline-grid;
  width: 30px;
  height: 30px;
  min-height: 30px;
  padding: 0;
  place-items: center;
  border: 1px solid rgba(0, 255, 204, 0.22);
  border-radius: 50%;
  background: rgba(12, 17, 16, 0.78);
  color: #cfeee8;
  font: 800 0.9rem / 1 var(--font-mono);
}

.tool-help-close:hover:not(:disabled),
.tool-help-close:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(18, 28, 26, 0.95);
}

.tool-help-body {
  display: grid;
  gap: 0;
  padding: 22px;
  padding-right: 52px;
}

.tool-help-body h2 {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: -2px 0 14px;
  padding: 0 0 12px;
  border-bottom: 1px solid rgba(0, 255, 204, 0.16);
  color: #e8fff8;
  font-size: 1.08rem;
  line-height: 1.25;
}

.tool-help-body h2::before {
  content: "i";
  display: inline-grid;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  place-items: center;
  border: 1px solid rgba(0, 255, 204, 0.32);
  border-radius: 6px;
  background: rgba(0, 255, 204, 0.06);
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 900;
  line-height: 1;
}

.tool-help-body section {
  padding: 11px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.tool-help-body section:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.tool-help-body h3 {
  margin: 0 0 7px;
  color: var(--cyan);
  font-size: 0.76rem;
  line-height: 1.25;
  text-transform: uppercase;
}

.tool-help-body p,
.tool-help-body li {
  color: #d8ddd8;
  font-size: 0.84rem;
  line-height: 1.42;
}

.tool-help-body ul,
.tool-help-body ol {
  display: grid;
  gap: 5px;
  padding-left: 22px;
}

.tool-help-body code {
  color: #d8fff2;
}

.tool-help-body a {
  color: #9effe4;
  font-weight: 700;
  text-decoration: none;
}

.tool-help-body a:hover,
.tool-help-body a:focus-visible {
  color: var(--cyan);
  text-decoration: underline;
  outline: none;
}

body.tool-help-open {
  overflow: hidden;
}

html[data-theme="light"] button,
html[data-theme="light"] select {
  border-color: #a8c5b7;
  background: linear-gradient(145deg, #ffffff, #e7eee9);
  color: #075f3b;
  box-shadow: none;
}

html[data-theme="light"] button.primary {
  color: #075f3b;
  border-color: #a8c5b7;
  background: linear-gradient(135deg, #e6f7ef, #ffffff);
  box-shadow: 0 6px 18px rgba(31, 72, 53, 0.08);
}

html[data-theme="light"] button:hover:not(:disabled),
html[data-theme="light"] select:hover:not(:disabled) {
  background: #edf7f1;
  box-shadow: 0 0 5px rgba(0, 127, 122, 0.18);
}

html[data-theme="light"] .run-button {
  color: #053826;
  border-color: #5caf8b;
  background: linear-gradient(135deg, #8af0bd, #d8ffe9);
  box-shadow: 0 0 12px rgba(7, 134, 83, 0.16);
}

html[data-theme="light"] .raw-toggle {
  border-color: #a8c5b7;
  background: #ffffff;
  color: #52665c;
}

html[data-theme="light"] #stopButton {
  border-color: #d89a9a;
  color: #8f2f36;
  background: linear-gradient(145deg, #fff5f5, #f4dfdf);
}

html[data-theme="light"] #stopButton:hover:not(:disabled) {
  background: #ffe9e9;
  box-shadow: 0 0 5px rgba(166, 61, 69, 0.18);
}

html[data-theme="light"] .generated-files {
  border-color: #b9c9c0;
  background: #ffffff;
}

html[data-theme="light"] .generated-file-name {
  color: #183128;
}

html[data-theme="light"] .generated-file-meta {
  color: #52665c;
}

html[data-theme="light"] .help-icon-button {
  border-color: #9fc7ba;
  background: #ffffff;
  color: #08705b;
  box-shadow: inset 0 0 6px rgba(8, 112, 91, 0.08);
}

html[data-theme="light"] .help-icon-button:hover:not(:disabled),
html[data-theme="light"] .help-icon-button:focus-visible {
  border-color: #08705b;
  color: #053826;
  background: #edf7f1;
}

html[data-theme="light"] .editor-panel,
html[data-theme="light"] .output-panel,
html[data-theme="light"] .toolbar {
  background: linear-gradient(145deg, #ffffff, #e7eee9);
  border-color: #b9c9c0;
  box-shadow: inset 0 0 5px rgba(28, 57, 43, 0.08);
}

html[data-theme="light"] .split-divider {
  background: linear-gradient(180deg, transparent, rgba(8, 112, 91, 0.16), transparent);
}

html[data-theme="light"] .split-divider::before {
  background: rgba(8, 112, 91, 0.28);
}

html[data-theme="light"] .split-divider:hover,
html[data-theme="light"] .split-divider:focus-visible,
html[data-theme="light"] body.is-resizing-split .split-divider {
  border-color: rgba(8, 112, 91, 0.2);
  background: rgba(8, 112, 91, 0.08);
}

html[data-theme="light"] .panel-header {
  border-bottom-color: #b9c9c0;
}

html[data-theme="light"] .fallback-editor,
html[data-theme="light"] .editor-surface,
html[data-theme="light"] .terminal-surface {
  background: #f8fcf9;
  color: #183128;
}

html[data-theme="light"] .editor-loading {
  color: #08705b;
}

html[data-theme="light"] .loading-dot {
  border-color: rgba(8, 112, 91, 0.18);
  border-top-color: #08705b;
}

html[data-theme="light"] .tool-help-overlay {
  background: rgba(18, 31, 26, 0.38);
}

html[data-theme="light"] .tool-help-modal {
  border-color: #9fc7ba;
  background: linear-gradient(180deg, #ffffff 0, #f2f8f4 78px, #ffffff 100%);
  color: #183128;
  box-shadow: 0 28px 90px rgba(28, 57, 43, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

html[data-theme="light"] .tool-help-close {
  border-color: #a8c5b7;
  background: #ffffff;
  color: #075f3b;
}

html[data-theme="light"] .tool-help-body h2 {
  border-bottom-color: #c8ded3;
  color: #10251d;
}

html[data-theme="light"] .tool-help-body h2::before {
  border-color: #9fc7ba;
  background: #edf7f1;
  color: #08705b;
}

html[data-theme="light"] .tool-help-body section {
  border-top-color: #dce8e1;
}

html[data-theme="light"] .tool-help-body h3 {
  color: #08705b;
}

html[data-theme="light"] .tool-help-body p,
html[data-theme="light"] .tool-help-body li {
  color: #34483f;
}

html[data-theme="light"] .tool-help-body code {
  color: #075f3b;
}

html[data-theme="light"] .tool-help-body a {
  color: #075f3b;
}

html[data-theme="light"] .tool-help-body a:hover,
html[data-theme="light"] .tool-help-body a:focus-visible {
  color: #08705b;
}

@media (max-width: 919px) {
  body {
    overflow: auto;
  }

  .app-shell {
    height: auto;
    min-height: 100dvh;
  }

  .toolbar-actions {
    width: 100%;
    margin-left: 0;
  }

  .toolbar-actions button,
  .toolbar-actions select {
    flex: 1 1 138px;
  }

  .toolbar-actions .help-icon-button {
    flex: 0 0 32px;
    width: 32px;
    min-width: 32px;
    height: 32px;
    min-height: 32px;
  }

  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(420px, 52dvh) minmax(240px, 32dvh);
  }

  .split-divider {
    display: none;
  }

  .panel-header {
    align-items: stretch;
    flex-wrap: wrap;
  }

  .panel-actions {
    flex: 1 1 100%;
  }

  .code-file-actions,
  .code-run-actions {
    flex: 1 1 100%;
  }

  .code-file-actions #exampleSelect {
    flex: 1 1 160px;
    max-width: none;
  }

  .code-run-actions {
    margin-left: 0;
    padding-left: 0;
    border-left: 0;
  }

  .panel-actions button,
  .raw-toggle {
    flex: 1 1 118px;
    justify-content: center;
  }

  #importCodeButton,
  #saveCodeButton {
    flex: 1 1 90px;
    min-width: 0;
  }

  .generated-files {
    max-height: 96px;
  }

  .generated-file {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .generated-file-meta {
    display: none;
  }

}

@media (max-width: 460px) {
  .toolbar-brand {
    white-space: normal;
  }

  .toolbar-actions button,
  .toolbar-actions select {
    flex-basis: 118px;
  }

  .toolbar-actions .help-icon-button {
    flex-basis: 32px;
  }
}

@media (max-width: 560px) {
  .tool-help-overlay {
    padding: 10px;
  }

  .tool-help-modal {
    max-height: 88vh;
  }

  .tool-help-body {
    padding: 18px;
    padding-right: 46px;
  }
}