/* Button styles */
button, a[class*="btn-"], input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25rem;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow);
  white-space: nowrap;
}

button:focus, a[class*="btn-"]:focus, input[type="submit"]:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
  box-shadow: 0 0 0 2px rgba(234, 88, 12, 0.2);
}

button:disabled, a[class*="btn-"]:disabled, input[type="submit"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button variants */
.btn-primary, a.btn-primary, input.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn-primary:hover:not(:disabled), a.btn-primary:hover:not(:disabled), input.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.btn-outline, a.btn-outline, input.btn-outline {
  background: transparent;
  border-color: var(--gray-300);
  color: var(--gray-700);
}

.btn-outline:hover:not(:disabled), a.btn-outline:hover:not(:disabled), input.btn-outline:hover:not(:disabled) {
  background: var(--gray-50);
  border-color: var(--gray-400);
  color: var(--gray-900);
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.btn-success, a.btn-success, input.btn-success {
  background: var(--success);
  color: var(--white);
  border-color: var(--success);
}

.btn-success:hover:not(:disabled), a.btn-success:hover:not(:disabled), input.btn-success:hover:not(:disabled) {
  background: #15803d;
  border-color: #166534;
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.btn-danger, a.btn-danger, input.btn-danger {
  background: var(--danger);
  color: var(--white);
  border-color: var(--danger);
}

.btn-danger:hover:not(:disabled), a.btn-danger:hover:not(:disabled), input.btn-danger:hover:not(:disabled) {
  background: #b91c1c;
  border-color: #991b1b;
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.btn-ghost, a.btn-ghost, input.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--gray-700);
}

.btn-ghost:hover:not(:disabled), a.btn-ghost:hover:not(:disabled), input.btn-ghost:hover:not(:disabled) {
  background: var(--gray-100);
  color: var(--gray-900);
}

.btn-warning, a.btn-warning, input.btn-warning {
  background: var(--warning);
  color: var(--white);
  border-color: var(--warning);
}

.btn-warning:hover:not(:disabled), a.btn-warning:hover:not(:disabled), input.btn-warning:hover:not(:disabled) {
  background: #b45309;
  border-color: #b45309;
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.btn.active {
  animation: pulse 2s infinite;
  box-shadow: 0 0 0 2px rgba(217, 119, 6, 0.3);
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

/* Button sizes */
.btn-sm, a.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  line-height: 1rem;
}

.btn-lg, a.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  line-height: 1.5rem;
}

/* Button group */
.btn-group {
  display: inline-flex;
  gap: 0.125rem;
}

.btn-group button, .btn-group a[class*="btn-"] {
  border-radius: 0;
  margin: 0;
}

.btn-group button:first-child, .btn-group a[class*="btn-"]:first-child {
  border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.btn-group button:last-child, .btn-group a[class*="btn-"]:last-child {
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.btn-group button:only-child, .btn-group a[class*="btn-"]:only-child {
  border-radius: var(--border-radius);
}

/* Link buttons */
.btn-link {
  background: none;
  border: none;
  color: var(--primary);
  text-decoration: underline;
  padding: 0;
  cursor: pointer;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.btn-link:hover {
  color: var(--primary-hover);
  text-decoration: none;
}

/* Navigation buttons */
.nav-link {
  color: var(--gray-700);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius);
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
}

.nav-link:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.nav-link.active {
  background: var(--gray-100);
  color: var(--gray-900);
}

.btn:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
  box-shadow: 0 0 0 2px var(--ring-color);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: var(--box-shadow-hover);
}

.btn-secondary {
  background-color: var(--gray-100);
  border-color: var(--gray-300);
  color: var(--gray-900);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--gray-200);
  border-color: var(--gray-400);
  box-shadow: var(--box-shadow-hover);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--gray-50);
  border-color: var(--gray-400);
  color: var(--gray-900);
  box-shadow: var(--box-shadow-hover);
}

.btn-ghost {
  background-color: transparent;
  border: 1px solid transparent;
  color: var(--gray-700);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--gray-100);
  color: var(--gray-900);
}



.btn-warning {
  background-color: #d97706;
  border-color: #d97706;
  color: var(--white);
}

.btn-warning:hover:not(:disabled) {
  background-color: #b45309;
  border-color: #b45309;
}

.btn.active {
  animation: pulse 2s infinite;
  box-shadow: 0 0 0 2px rgba(217, 119, 6, 0.3);
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

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

.btn-danger:hover:not(:disabled) {
  background-color: #b91c1c;
  border-color: #991b1b;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  line-height: 1rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  line-height: 1.5rem;
}

.btn-icon {
  padding: 0.5rem;
  width: 2.5rem;
  height: 2.5rem;
}

/* Button group */
.btn-group {
  display: inline-flex;
  gap: 0.125rem;
}

.btn-group .btn {
  border-radius: 0;
  margin: 0;
}

.btn-group .btn:first-child {
  border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.btn-group .btn:last-child {
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.btn-group .btn:only-child {
  border-radius: var(--border-radius);
}

/* Link buttons */
.btn-link {
  background: none;
  border: none;
  color: var(--primary-color);
  text-decoration: underline;
  padding: 0;
  cursor: pointer;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.btn-link:hover {
  color: var(--primary-hover);
  text-decoration: none;
}

/* Navigation buttons */
.nav-link {
  color: var(--gray-700);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius);
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
}

.nav-link:hover {
  background-color: var(--gray-100);
  color: var(--gray-900);
}

.nav-link.active {
  background-color: var(--gray-100);
  color: var(--gray-900);
}