:root {
  --bg: #17171b;
  --panel: #1f1f24;
  --panel-alt: #272730;
  --panel-hover: #2f2f3a;
  --border: #2e2e37;
  --border-strong: #3a3a46;
  --text: #ececf1;
  --text-dim: #9a9aa6;
  --text-dim-strong: #c7c7d1;
  --accent: #6ea8ff;
  --accent-soft: rgba(110, 168, 255, 0.14);
  --accent-soft-strong: rgba(110, 168, 255, 0.22);
  --danger: #ff7a7a;
  --danger-soft: rgba(255, 122, 122, 0.12);
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 18px rgba(0, 0, 0, 0.35);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  color-scheme: dark;
}

:root[data-theme='light'] {
  --bg: #f3f3f6;
  --panel: #ffffff;
  --panel-alt: #f5f5f8;
  --panel-hover: #eaeaf0;
  --border: #e2e2e7;
  --border-strong: #c9c9d0;
  --text: #1c1c20;
  --text-dim: #72727a;
  --text-dim-strong: #3c3c42;
  --accent: #2b6af5;
  --accent-soft: rgba(43, 106, 245, 0.1);
  --accent-soft-strong: rgba(43, 106, 245, 0.18);
  --danger: #d63c3c;
  --danger-soft: rgba(214, 60, 60, 0.09);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 25, 40, 0.12);
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body,
#app {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}

input,
textarea,
[contenteditable='true'] {
  user-select: text;
  -webkit-user-select: text;
}

button {
  font: inherit;
  color: inherit;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  cursor: pointer;
  transition: background 140ms var(--ease), border-color 140ms var(--ease),
    color 140ms var(--ease), transform 120ms var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

button:hover:not(:disabled) {
  background: var(--panel-hover);
  border-color: var(--border-strong);
}

button:active:not(:disabled) {
  transform: translateY(1px);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

input,
select,
textarea {
  transition: border-color 140ms var(--ease), background 140ms var(--ease);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent) !important;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 10px;
  border: 2px solid var(--panel);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

::selection {
  background: var(--accent-soft-strong);
  color: var(--text);
}