/* ============================================================
   NightKit shared component classes — built on tokens.css.
   Reusable patterns so buttons, cards, inputs and labels look
   identical across landing.html, app.html and login.html.
   Load AFTER tokens.css.
   ============================================================ */

/* ---- Global base typography ------------------------------------- */
/* The single default for all pages: Inter everywhere, never a system font.
   Per-page <style> may override colour/background but inherits this type. */
body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Buttons ----------------------------------------------------- */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  background: var(--color-accent); color: var(--color-accent-ink);
  border: none; border-radius: var(--radius-sm);
  font-family: inherit; font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold);
  cursor: pointer; transition: background .15s;
}
.btn-primary:hover:not(:disabled) { background: var(--color-accent-hover); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }

.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  background: var(--color-surface-2); color: var(--color-text);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  font-family: inherit; font-size: var(--font-size-lg); font-weight: var(--font-weight-medium);
  cursor: pointer; transition: border-color .15s, background .15s;
}
.btn-secondary:hover:not(:disabled) { border-color: var(--color-text-dim); }
.btn-secondary:disabled { opacity: .45; cursor: not-allowed; }

/* ---- Card -------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

/* ---- Input + Label ----------------------------------------------- */
.input {
  width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: inherit; font-size: var(--font-size-lg);
  padding: var(--space-3) var(--space-4);
  outline: none; transition: border-color .15s;
}
.input:focus { border-color: var(--color-accent); }
.input::placeholder { color: var(--color-text-dim); }

.label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}