/* Parametrizovatelné UI prvky pro veřejné stránky; připojují se postupně přes třídy .dr-*. */
.dr-button,
.dr-icon-button,
.dr-brand-link {
  -webkit-tap-highlight-color: transparent;
}

.dr-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--dr-space-2);
  min-height: 2.75rem;
  padding: 0.625rem 1rem;
  border: var(--dr-border-default);
  border-radius: var(--dr-radius-md);
  color: var(--dr-button-primary-text);
  background: var(--dr-button-primary-surface);
  font-family: var(--dr-font-display);
  font-size: 0.875rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform var(--dr-motion-fast) var(--dr-motion-ease), background var(--dr-motion-fast) var(--dr-motion-ease), color var(--dr-motion-fast) var(--dr-motion-ease);
}

.dr-button[data-variant="primary"] {
  color: var(--dr-button-primary-text);
  background: var(--dr-button-primary-surface);
}

.dr-button[data-variant="secondary"] {
  color: var(--dr-button-secondary-text);
  background: var(--dr-button-secondary-surface);
}

.dr-button[data-variant="quiet"] {
  min-height: auto;
  padding: var(--dr-space-2) 0;
  border-color: transparent;
  border-radius: 0;
  color: var(--dr-text-primary);
  background: transparent;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.25em;
}

.dr-button[data-size="md"] {
  min-height: 2.75rem;
  padding: 0.625rem 1rem;
}

.dr-button[data-size="lg"] {
  min-height: 3.5rem;
  padding: 0.875rem 1.25rem;
  font-size: 1rem;
}

/* Použití: `.dr-button__label` nese text, `.dr-button__icon` je dekorativní
   prvek s `aria-hidden="true"`; odkaz nebo tlačítko už má vlastní textový název. */
.dr-button__label {
  min-width: 0;
}

.dr-button__icon {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: transform var(--dr-motion-fast) var(--dr-motion-ease);
}

.dr-button:hover,
.dr-button:active {
  transform: translateY(-2px);
}

.dr-button:hover .dr-button__icon,
.dr-button:active .dr-button__icon {
  transform: translate(0.1875rem, -0.1875rem);
}

.dr-button[data-variant="quiet"]:hover,
.dr-button[data-variant="quiet"]:active {
  transform: none;
  color: var(--dr-surface-accent);
}

.dr-button[data-variant="quiet"]:hover .dr-button__icon,
.dr-button[data-variant="quiet"]:active .dr-button__icon {
  transform: translate(0.1875rem, 0);
}

.dr-button[aria-disabled="true"],
.dr-button:disabled {
  pointer-events: none;
  opacity: 0.52;
}

.dr-icon-button {
  display: inline-grid;
  width: 3rem;
  height: 3rem;
  padding: 0;
  place-items: center;
  border: var(--dr-border-default);
  border-radius: var(--dr-radius-md);
  color: var(--dr-text-primary);
  background: transparent;
  cursor: pointer;
  transition: background var(--dr-motion-fast) var(--dr-motion-ease), color var(--dr-motion-fast) var(--dr-motion-ease);
}

.dr-icon-button:hover {
  color: var(--dr-text-inverse);
  background: var(--dr-surface-inverse);
}

.dr-brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--dr-space-3);
  color: var(--dr-text-primary);
  font-family: var(--dr-font-display);
  font-weight: 900;
  line-height: 0.9;
  text-decoration: none;
  text-transform: uppercase;
}

.dr-brand-link:hover {
  color: var(--dr-surface-accent);
}

.dr-kicker {
  display: block;
  margin: 0;
  color: var(--dr-text-muted);
  font-family: var(--dr-font-display);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1.1;
  text-transform: uppercase;
}

.dr-chip {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--dr-line-subtle);
  border-radius: var(--dr-radius-pill);
  color: var(--dr-text-primary);
  background: var(--dr-surface-raised);
  font-family: var(--dr-font-display);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
}

.dr-card {
  min-width: 0;
  padding: clamp(var(--dr-space-5), 3vw, var(--dr-space-7));
  border: var(--dr-border-default);
  border-radius: var(--dr-radius-lg);
  color: var(--dr-text-primary);
  background: var(--dr-surface-raised);
}

.dr-card[data-tone="inverse"] {
  color: var(--dr-text-inverse);
  background: var(--dr-surface-inverse);
}

.dr-card[data-tone="accent"] {
  color: var(--dr-color-plum);
  background: var(--dr-surface-accent);
}

.dr-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--dr-space-4);
  padding: var(--dr-space-5) 0;
  border-top: 1px solid var(--dr-line-subtle);
  color: var(--dr-text-muted);
  font-size: 0.875rem;
}

@media (prefers-reduced-motion: reduce) {
  .dr-button,
  .dr-icon-button,
  .dr-button__icon {
    transition: none;
  }

  .dr-button:hover .dr-button__icon,
  .dr-button:active .dr-button__icon,
  .dr-button[data-variant="quiet"]:hover .dr-button__icon,
  .dr-button[data-variant="quiet"]:active .dr-button__icon {
    transform: none;
  }
}