.rt-btn {
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 0;
  font-size: 0.84rem;
  font-weight: 800;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition:
    transform 0.24s ease,
    border-color 0.24s ease,
    box-shadow 0.24s ease,
    background-color 0.24s ease,
    color 0.24s ease,
    opacity 0.24s ease;
  white-space: nowrap;
  letter-spacing: -0.01em;
  position: relative;
  overflow: hidden;
}

button[type="submit"] {
  transition:
    transform 0.24s ease,
    border-color 0.24s ease,
    box-shadow 0.24s ease,
    background-color 0.24s ease,
    color 0.24s ease,
    opacity 0.24s ease;
}

.rt-btn-block {
  width: 100%;
}

.rt-btn svg,
.rt-btn .rt {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
}

.rt-btn:hover,
button[type="submit"]:hover {
  transform: translateY(-1px);
}

.rt-btn:active,
button[type="submit"]:active {
  transform: translateY(0);
}

.rt-btn:focus-visible,
button[type="submit"]:focus-visible {
  outline: none;
  border-color: rgba(var(--rt-primary-rgb), 0.4);
  box-shadow: 0 0 0 4px rgba(var(--rt-primary-rgb), 0.14);
}

.rt-btn:disabled,
button[type="submit"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.rt-btn.is-loading,
button.is-loading {
  cursor: wait;
}

.rt-btn.is-loading .rt-spinner,
button.is-loading .rt-spinner {
  display: inline-block;
}

.rt-btn-primary {
  background: linear-gradient(135deg, var(--rt-primary), var(--rt-primary-2));
  color: var(--rt-white);
}

.rt-btn-secondary {
  background: var(--rt-surface-solid);
  color: var(--rt-text);
  border-color: var(--rt-border);
}

.rt-btn-secondary:hover {
  border-color: rgba(var(--rt-primary-rgb), 0.3);
  color: var(--rt-primary);
}

.rt-btn-success {
  background: linear-gradient(135deg, var(--rt-success), #22d3ee);
  color: var(--rt-white);
}

.rt-btn-warning {
  background: linear-gradient(135deg, var(--rt-warning), #fbbf24);
  color: var(--rt-white);
}

.rt-btn-danger {
  background: linear-gradient(135deg, var(--rt-danger), var(--rt-accent));
  color: var(--rt-white);
}

.rt-btn-accent {
  background: linear-gradient(135deg, var(--rt-accent), var(--rt-warning));
  color: var(--rt-white);
}

.rt-btn-purple {
  background: linear-gradient(135deg, var(--rt-purple), var(--rt-primary));
  color: var(--rt-white);
}

.rt-btn-ghost {
  background: transparent;
  color: var(--rt-text);
  border-color: var(--rt-border);
}

.rt-btn-ghost:hover {
  background: rgba(var(--rt-primary-rgb), 0.08);
  color: var(--rt-primary);
  border-color: rgba(var(--rt-primary-rgb), 0.2);
}

.rt-btn-outline-primary,
.rt-btn-outline {
  background: transparent;
  color: var(--rt-primary);
  border-color: rgba(var(--rt-primary-rgb), 0.3);
}

.rt-btn-outline-primary:hover,
.rt-btn-outline:hover {
  background: rgba(var(--rt-primary-rgb), 0.08);
  border-color: var(--rt-primary);
}

.rt-btn-sm {
  min-height: 32px;
  padding: 0 12px;
  font-size: 0.76rem;
  border-radius: 0;
}

.rt-btn-lg {
  min-height: 48px;
  padding: 0 24px;
  font-size: 0.92rem;
  border-radius: 0;
}

.rt-btn-icon {
  width: 40px;
  min-height: 40px;
  padding: 0;
}

.rt-btn-icon.rt-btn-sm {
  width: 32px;
  min-height: 32px;
}

.rt-btn-group {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.rt-btn-group--nowrap {
  display: inline-flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 6px;
}

.rt-btn-group--nowrap > .rt-btn {
  min-width: 38px;
  width: 38px;
  height: 38px;
  padding: 0;
  display: inline-grid;
  place-items: center;
}