:root {
  color-scheme: light;
  --surface-page: #f9f9f7;
  --surface-card: #fcfcfb;
  --surface-raised: #ffffff;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --gridline: #e1e0d9;
  --border: rgba(11, 11, 11, 0.1);
  --baseline: #c3c2b7;

  --accent: #2a78d6;
  --good: #0ca30c;
  --warning: #fab219;
  --critical: #d03b3b;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 1px 2px rgba(11, 11, 11, 0.06), 0 8px 24px rgba(11, 11, 11, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --surface-page: #0d0d0d;
    --surface-card: #1a1a19;
    --surface-raised: #202020;
    --text-primary: #f0efec;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --border: rgba(255, 255, 255, 0.1);
    --baseline: #383835;
    --accent: #3987e5;
    --good: #0ca30c;
    --warning: #fab219;
    --critical: #e66767;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --surface-page: #0d0d0d;
  --surface-card: #1a1a19;
  --surface-raised: #202020;
  --text-primary: #f0efec;
  --text-secondary: #c3c2b7;
  --text-muted: #898781;
  --gridline: #2c2c2a;
  --border: rgba(255, 255, 255, 0.1);
  --baseline: #383835;
  --accent: #3987e5;
  --good: #0ca30c;
  --warning: #fab219;
  --critical: #e66767;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--surface-page);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-raised);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.1s ease, background 0.15s ease;
}

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

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.05);
  background: var(--accent);
}

.btn-danger {
  color: var(--critical);
  border-color: var(--critical);
}

.btn-sm {
  padding: 6px 10px;
  font-size: 13px;
}

.field {
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-raised);
  color: var(--text-primary);
}

.field:focus,
.btn:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 4px;
}

.card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

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

.toast-stack {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
}

.toast {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
  padding: 10px 14px;
  font-size: 14px;
  animation: toast-in 0.2s ease;
}

.toast.error {
  border-color: var(--critical);
  color: var(--critical);
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}