/* Layout and components. Every value comes from `theme.css` — a literal
 * colour or size written here defeats the point of the split. */

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

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  background-image: var(--bg-glow);
  background-repeat: no-repeat;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--leading);
  -webkit-font-smoothing: antialiased;
}

h1,
h2 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--text-2xl);
}

h2 {
  font-size: var(--text-lg);
}

p {
  margin: 0;
}

a {
  color: var(--color-accent-text);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Vertical rhythm: the templates say what is on a page, this says how far
   apart it sits. */
.stack > * + * {
  margin-block-start: var(--space-4);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.actions--between {
  justify-content: space-between;
}

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

/* --- Page shell --- */

.site-header {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-block-end: 1px solid var(--color-border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand__mark {
  display: block;
  border-radius: var(--radius-sm);
}

.site-header__user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
}

.user-chip {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-text-muted);
}

.page {
  width: 100%;
  max-width: var(--layout-width);
  margin-inline: auto;
  padding: var(--space-7) var(--space-5);
  flex: 1;
}

.page--wide {
  max-width: var(--layout-width-wide);
}

.site-footer {
  padding: var(--space-5);
  border-block-start: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  text-align: center;
}

/* --- Surfaces --- */

.card {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.hero__title {
  font-size: var(--text-3xl);
}

.hero__tagline {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

.notice {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-inline-start: 3px solid var(--color-warning);
  border-radius: var(--radius-md);
  background: var(--color-surface-raised);
  font-size: var(--text-sm);
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-raised);
  color: var(--color-text);
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition),
    color var(--transition);
}

.btn:hover {
  border-color: var(--color-border-strong);
}

.btn:active {
  transform: translateY(1px);
}

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

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

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

.btn--sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

/* --- Session state --- */

.status {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.badge {
  --badge-color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--badge-color);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--badge-color);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
}

/* Modifiers are the `VmState` values verbatim, so a template writes
   `badge--{{ game_session.state }}` and a new state simply falls back to
   the muted default until it is given a colour here. */
.badge--pending,
.badge--starting,
.badge--stopping {
  --badge-color: var(--color-warning);
}

.badge--ready {
  --badge-color: var(--color-success);
}

.badge--failed {
  --badge-color: var(--color-danger);
}

.badge--pending::before,
.badge--starting::before,
.badge--stopping::before {
  animation: pulse 1.6s ease-in-out infinite;
}

.spinner {
  flex: none;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--color-border-strong);
  border-block-start-color: var(--color-accent-text);
  border-radius: 50%;
  animation: spin 900ms linear infinite;
}

.score {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-accent-text);
  font-variant-numeric: tabular-nums;
}

.reason {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  overflow-wrap: anywhere;
}

/* --- Streaming page --- */

.stream-frame {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-stream-bg);
}

@keyframes spin {
  to {
    transform: rotate(1turn);
  }
}

@keyframes pulse {
  50% {
    opacity: 0.25;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media (max-width: 32rem) {
  .page {
    padding: var(--space-5) var(--space-4);
  }

  .card {
    padding: var(--space-5);
  }

  .hero__title {
    font-size: var(--text-2xl);
  }
}