/*
 * Shared design tokens for every tool on pvc.bowers.cloud.
 *
 * Dark is the default because that is what a retro-arcade theme wants and what
 * most of the team runs; light mode is a real alternative, not an afterthought.
 * No web fonts: the CSP allows only same-origin assets, and the arcade feel comes
 * from casing and spacing rather than a downloaded typeface.
 */

:root {
  color-scheme: dark light;

  /* Surfaces */
  --bg: #0b0e14;
  --bg-grid: #11161f;
  --surface: #141a24;
  --surface-2: #1b2230;
  --surface-3: #232c3d;
  --border: #2b3546;
  --border-bright: #3c4a63;

  /* Text */
  --text: #e8edf5;
  --text-dim: #9aa7bd;
  --text-faint: #6b7892;

  /* Accents: cyan leads, magenta for the leader/celebration, amber for warnings */
  --accent: #5ee7ff;
  --accent-dim: #2a7f91;
  --magenta: #ff5ebc;
  --amber: #ffc94d;
  --green: #5ef2a0;
  --red: #ff6b6b;
  --violet: #b78cff;

  /* Distribution chart: colour-blind-safe sequence, checked for deuter/protanopia */
  --series-1: #5ee7ff;
  --series-2: #ffc94d;
  --series-3: #b78cff;
  --series-4: #5ef2a0;
  --series-5: #ff8f5e;
  --series-6: #8fb4ff;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 10px 30px rgb(0 0 0 / 45%);
  --mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f6fa;
  --bg-grid: #e9edf4;
  --surface: #ffffff;
  --surface-2: #f0f3f8;
  --surface-3: #e4e9f2;
  --border: #d2dae7;
  --border-bright: #b3c0d4;
  --text: #121823;
  --text-dim: #4d5a70;
  --text-faint: #7585a0;
  --accent: #0a7f99;
  --accent-dim: #8fd4e2;
  --magenta: #c42b86;
  --amber: #9a6a00;
  --green: #11804f;
  --red: #c23434;
  --violet: #6b45b8;
  --series-1: #0a7f99;
  --series-2: #9a6a00;
  --series-3: #6b45b8;
  --series-4: #11804f;
  --series-5: #b5541f;
  --series-6: #3159a8;
  --shadow: 0 8px 24px rgb(20 30 50 / 12%);
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  background-color: var(--bg);
  /* Faint arcade grid. Fixed attachment so it reads as a backdrop, not wallpaper. */
  background-image:
    linear-gradient(transparent 95%, var(--bg-grid) 95%),
    linear-gradient(90deg, transparent 95%, var(--bg-grid) 95%);
  background-size: 28px 28px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ------------------------------------------------------------------ typography */

h1,
h2,
h3 {
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

h1 {
  font-family: var(--mono);
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h2 {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

a {
  color: var(--accent);
}

code,
kbd {
  font-family: var(--mono);
  font-size: 0.9em;
}

kbd {
  padding: 0.1em 0.4em;
  border: 1px solid var(--border-bright);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--text-dim);
}

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

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

.mono {
  font-family: var(--mono);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------------------------------------------------------------------- layout */

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.25rem 16px 4rem;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem 16px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 85%, transparent);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar .brand {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.topbar .spacer {
  flex: 1 1 auto;
}

.card {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

/* --------------------------------------------------------------------- controls */

button,
.btn {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.08s ease;
}

button:hover:not(:disabled),
.btn:hover {
  background: var(--surface-3);
  border-color: var(--accent-dim);
}

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

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

button.primary,
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #05222b;
}

button.primary:hover:not(:disabled) {
  background: color-mix(in srgb, var(--accent) 85%, white);
  border-color: var(--accent);
}

button.danger {
  border-color: color-mix(in srgb, var(--red) 55%, var(--border));
  color: var(--red);
}

button.ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-dim);
}

button.ghost:hover:not(:disabled) {
  background: var(--surface-2);
  color: var(--text);
}

button.small,
.btn.small {
  font-size: 0.72rem;
  padding: 0.3rem 0.55rem;
}

:where(button, a, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

input,
select,
textarea {
  font-family: var(--sans);
  font-size: 0.95rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  width: 100%;
}

textarea {
  font-family: var(--mono);
  font-size: 0.85rem;
  resize: vertical;
}

label {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.25rem;
}

.field {
  margin-bottom: 0.75rem;
}

.switch {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--text-dim);
  cursor: pointer;
  margin: 0;
}

.switch input {
  width: auto;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ----------------------------------------------------------------------- misc */

.pill {
  display: inline-flex;
  gap: 0.3rem;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--border-bright);
  color: var(--text-dim);
}

.pill.ok {
  color: var(--green);
  border-color: color-mix(in srgb, var(--green) 45%, var(--border));
}

.pill.warn {
  color: var(--amber);
  border-color: color-mix(in srgb, var(--amber) 45%, var(--border));
}

.pill.live {
  color: var(--magenta);
  border-color: color-mix(in srgb, var(--magenta) 45%, var(--border));
}

.toast-host {
  position: fixed;
  inset-block-end: 1rem;
  inset-inline: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  pointer-events: none;
  z-index: 90;
}

.toast {
  max-width: min(520px, calc(100vw - 32px));
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  background: var(--surface-3);
  color: var(--text);
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  animation: toast-in 0.18s ease-out;
}

.toast.error {
  border-color: color-mix(in srgb, var(--red) 60%, var(--border));
}

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

.avatar {
  display: block;
  border-radius: var(--radius-sm);
  background: var(--surface-3);
  image-rendering: pixelated;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}